JP5560604B2 - Stroke playback device and program - Google Patents

Description

  The present invention relates to a stroke reproducing apparatus that acquires and processes information entered with an electronic pen.

  In recent years, electronic pens that digitize written information have been developed, and “Anoto pen” developed by Swedish company Anoto is known as a representative example. Anotopen is used with dedicated paper on which a predetermined dot pattern is printed. In addition to the usual ink cartridge for writing characters, etc., the anotopen has a small camera for capturing the dot pattern printed on the dedicated paper and the position coordinates on the dedicated paper from the captured dot pattern. A processor for calculating and a data communication unit for transmitting the calculated position coordinates and the like to an external device are mounted. When the user writes characters on the special paper with an anotopen or puts a check mark on the image designed on the special paper, the small camera captures the dot pattern printed on the special paper as the pen moves. The entry information such as characters and images written by the user is recognized from the continuous position coordinates calculated by the processor. Then, this entry information is transmitted from the Anotopen by the data communication unit to a nearby terminal device such as a personal computer or a mobile phone (for example, see Patent Document 1).

  Patent Document 2 records the answering process by a student of a problem received by a student unit (personal computer) in a distance learning as a moving image file, and this moving image file is instructed via an instructor unit (personal computer). ) And the correspondence education system that the instructor can replay is described, and a graph that visualizes the student's writing status is displayed on the display, and this is used to reproduce only the time zone in which there is writing A method has been proposed.

  In Patent Literature 3, the text display timing and display format for each line in a text extending over a plurality of lines can be set in detail. For example, “part of karaoke dialogue (color and emphasis) is matched to accompaniment. Proposed information storage medium, information recording method, information storage device, information playback method, and information playback device capable of fine display control for display text synchronized with the time progress of moving images and audio that are played back at the same time Has been.

  Patent Document 4 is a document management system that manages handwritten data for a circulation document and its approval status, adds an attribute indicating the approval status according to the entry time, manages the stroke, and according to the approval status at the specified time, A document management system that can display strokes in different colors is proposed.

Japanese translation of PCT publication No. 2003-511761 JP 2004-145247 A JP 2008-199415 A JP 2008-020974 A

  In the prior art, when the stroke replay device reproduces and displays the handwritten strokes entered with the electronic pen and reproduces the entry process, the handwriting strokes entered by the writer after changing the entry position on the paper are changed. In some cases, the playback position has changed, making it difficult for the viewer to find the latest playback position of the stroke. In addition, when the viewer checks the entry information while operating the computer device or the like, it may be difficult to find the latest reproduction portion of the stroke. Therefore, the present invention provides a stroke reproduction device that allows the viewer to grasp the latest entry location by the writer at a glance without performing a special operation.

Stroke reproducing apparatus according to the present invention, an acquisition unit configured to acquire entry information about handwriting strokes entered by the electronic pen, on the basis of the serial input information, the displayed reproduced sequentially on the display means which is entered handwriting strokes 1 processing means, line type setting means for setting a line type of a handwritten stroke, display change condition setting means for setting a change time as a display change condition for changing the line type of a displayed handwritten stroke, The first processing means displays the handwritten stroke on the display means by the set line type set by the line type setting means, and the display change condition setting means for each coordinate information included in the handwritten stroke. When the passage of the change time set by, by different line types is the set line type and coordinate unit of the handwriting strokes Further and displays.

In the above stroke reproducing apparatus, the first processing means reproduces and displays the writing process by reproducing and displaying the handwritten strokes entered by the user with the electronic pen on the display means in the order of entry. At this time, if the viewer sets the display change condition and the setting line type in advance by the display change condition setting unit and the line type setting unit, the first processing unit uses the set line type as the handwritten stroke of the acquired entry information. When the handwritten stroke displayed for each coordinate information included in the handwritten stroke satisfies the display change condition, it is changed and displayed with a line type different from the set line type for each coordinate point of the handwritten stroke . A display change condition, each coordinate information included in the handwritten stroke, it determines whether the elapsed time changed from being displayed. Only new handwritten strokes whose change time has not elapsed since they are displayed are displayed in the set line type, and are displayed separately from handwritten strokes whose change time has elapsed. For all handwriting strokes, by making this change display coordinate point based on the filled-in order, by handwriting strokes that do not meet the display change condition is displayed in set line type, the handwriting strokes that satisfies the display change condition Displayed separately. Thereby, the browsing person can grasp | ascertain the reproduction | regeneration location which does not satisfy | fill the set display change conditions at a glance in a stroke reproduction | regeneration process, and the convenience improves. Further, the viewer can freely set the change time.

In the above stroke reproduction device, second processing means for displaying all handwritten strokes on the display means based on the entry information, and reproduction instruction means for instructing the first processing means to reproduce handwritten strokes. The second processing means displays in advance all handwritten strokes on the display means, and when the reproduction instruction means instructs the first processing means to reproduce, the second processing means If all displayed handwritten strokes are erased, the handwritten strokes are displayed on the display means by the set line type, and the display change condition is satisfied, a line different from the set line type in units of coordinate points of the handwritten strokes It may be configured to change and display depending on the species. In this aspect, the second processing means first displays all handwritten strokes on the display means. Next, when the reproduction instructing unit instructs the first processing unit to reproduce the handwritten stroke, the first processing unit erases all the handwritten strokes displayed by the second processing unit, and then the user enters with the electronic pen The stroke is reproduced and displayed on the display means to reproduce the entry process. Thereby, the browsing person can grasp | ascertain the whole handwritten stroke first, and can start reproduction | regeneration of a handwritten stroke at arbitrary timings.

Further, in the above stroke reproduction device, a second processing means for displaying all handwritten strokes on the display means based on the entry information, and a reproduction instruction for instructing the first processing means to reproduce the handwritten strokes And the second processing means displays in advance all handwritten strokes on the display means with a line type different from the set line type set by the line type setting means, and the first process When the reproduction is instructed by the reproduction instruction means, the means changes and displays the handwritten stroke displayed by the second processing means on the display means by the set line type, and when the display change condition is satisfied, You may comprise so that it may further change and display by the line type different from the said setting line type in the coordinate point unit of a handwritten stroke. In this aspect, the second processing means first displays all the handwritten strokes on the display means with a line type different from the set line type. Next, when the reproduction instructing unit instructs the first processing unit to reproduce the handwritten stroke, the first processing unit displays the handwritten stroke displayed by the second processing unit by changing the setting line type in the order of entry, Reproduce the entry process. Thereby, a handwritten stroke can be reproduced | regenerated at arbitrary timings, and the viewer can browse an entry process, grasping | ascertaining the whole handwritten stroke.

In another aspect of the stroke reproducing device, the display change condition setting unit can set a line color or a line thickness as a line type different from the set line type. The processing means reproduces handwritten strokes of a plurality of users by dividing the area.

In the present invention, it is possible to provide a program that causes a computer to function as the stroke reproducing device. By executing this program, the above-described stroke reproducing device can be realized.

  According to the present invention, when the stroke reproducing device acquires a handwritten stroke entered with the electronic pen, reproduces and displays the entry process, only the stroke that does not satisfy the display change condition is displayed with the set line type. Thus, the viewer can grasp at a glance the latest reproduction location of the strokes in the order in which they were written without performing a special operation, and convenience is improved.

It is a system configuration figure of a stroke reproduction system in this embodiment. It is explanatory drawing which shows the relationship between the arrangement | positioning of the dot in a dot pattern, and the value converted. (A) shows a dot pattern typically, and (b) is a figure showing an example of information corresponding to it. It is the schematic which shows the structure of an electronic pen. It is a figure which shows typically the data structure of the entry information acquired from an electronic pen. It is a functional block diagram of a stroke reproducing device. In the first embodiment, the entry content of the electronic pen 1A is displayed by a playback application. It is an example of the display change condition setting screen of 1st Embodiment. In a 1st embodiment, it is an example of a display of a reproduction application in the case of setting a setting line type and change time. In the first embodiment, the entry content of the electronic pen 1B is displayed by a playback application. In 1st Embodiment, it is a display example of the reproduction | regeneration application at the time of displaying the entry content of the electronic pen 1A and the electronic pen 1B simultaneously. In the first embodiment, it is an example of display at a certain point in time for a playback application that plays back and displays the entry contents of the electronic pen 1A. It is a stroke acquisition processing flow in the first embodiment. It is a stroke display processing flow in the first embodiment. It is a stroke reproduction | regeneration display processing flow in 1st Embodiment. It is a stroke change display processing flow in a 1st embodiment. In a 2nd embodiment, it is an example of a display at a certain time of a reproduction application which reproduces and displays entry contents of electronic pen 1. It is a stroke reproduction | regeneration display processing flow in 2nd Embodiment. In 3rd Embodiment, it is an example of a display at the time of the reproduction | regeneration application which reproduces and displays the entry content of 1 A of electronic pens. It is a stroke display processing flow in a 3rd embodiment. It is a stroke reproduction | regeneration display processing flow in 3rd Embodiment. It is a stroke change display processing flow in a 3rd embodiment. It is an example of the display change condition setting screen of 4th Embodiment. In a 4th embodiment, it is an example of a display of a reproduction application in the case of setting a setting line type and change time. It is a stroke acquisition processing flow in the fourth embodiment. It is a stroke display processing flow in the fourth embodiment. It is a stroke reproduction | regeneration display processing flow in 4th Embodiment. It is a stroke change display processing flow in a 4th embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[System configuration of stroke playback system]
As shown in FIG. 1, a stroke reproduction system 10 according to this embodiment includes an entry sheet 4, an electronic pen 1 used by a user, and a stroke reproduction apparatus 2 that acquires and processes entry information from the electronic pen 1. Composed. Further, the projector 3 may display an image on the display (display means) of the stroke reproducing device 2 on a screen.

[Entry form]
First, the entry form 4 will be described. A dot pattern (coded pattern), which will be described later, is printed on substantially the entire surface of the entry sheets 4A and 4B (4). The dot pattern is printed with ink containing carbon that absorbs infrared rays. In addition, an entry column or the like may be printed on the printed Anoto dot pattern with ink that does not absorb in the infrared region.

[Dot pattern]
Next, the dot pattern (coded pattern) printed on the entry sheet 4 will be described. FIG. 2 is a diagram for explaining the relationship between the dots of the dot pattern printed on the entry sheet 4 and the values to which the dots are converted. As shown in FIG. 2, each dot of the dot pattern is associated with a predetermined value depending on its position. In other words, each dot is associated with a value of 0 to 3 depending on which direction the top, bottom, left, or right is shifted from the reference position of the grid (intersection of the vertical line and horizontal line). The value of each dot can be further converted into a first bit value for the X coordinate and a second bit value for the Y coordinate. The position coordinates on the entry sheet 4 are determined by the combination of information thus associated.

  FIG. 3A shows an arrangement of a certain dot pattern. As shown in FIG. 3A, 6 × 6 dots are arranged within a range of about 2 mm in length and width so that a unique pattern can be obtained no matter which part of the entry sheet 4 is taken 6 × 6 dots. ing. The dot pattern formed by these 36 dots holds position coordinates (for example, where the dot pattern is on the entry sheet 4). FIG. 3B is a diagram in which each dot shown in FIG. 3A is converted into a value associated with the regularity shown in FIG. 3 according to the shift direction from the reference position of the lattice. This conversion is performed by the electronic pen 1 that captures an image of a dot pattern.

[Electronic pen]
Next, the electronic pen 1 will be described. 4, the electronic pen 1 includes an ink cartridge 104, an LED 105, a CMOS camera 106, a pressure sensor 107, a processor 108 including a CPU, a memory 109 such as a ROM and a RAM, A communication unit 111 including a real-time clock 110, an antenna, and the like, and a battery 112 are provided. The tip of the ink cartridge 104 is a pen tip portion 103, and the user touches the pen tip portion 103 of the electronic pen 1 against the entry sheet 4 and enters a stroke (handwritten stroke). Here, the first contact of the pen tip portion 103 of the electronic pen 1 with the entry sheet 4 is referred to as pen-down, and the removal of the pen tip portion 103 from the contacted (contacted) state is referred to as pen-up. . A trajectory written between the pen-down and pen-up of the electronic pen 1 is one stroke, and characters, figures, etc. are composed of one or a plurality of strokes.

  The battery 112 is for supplying electric power to each component in the electronic pen 1. For example, the battery 112 is configured to turn on / off the electronic pen 1 itself by attaching and detaching a cap (not shown) of the electronic pen 1. May be. The real time clock 110 transmits time information indicating the current time (time stamp) and supplies the time information to the processor 108. The pressure sensor 107 detects the pressure applied through the ink cartridge 104 from the pen tip portion 103 when the user writes or taps a character or mark on the entry sheet 4 with the electronic pen 1, that is, the writing pressure. Transmit to the processor 108.

  The processor 108 switches on / off the switches of the LED 105 and the CMOS camera 106 based on the writing pressure data supplied from the pressure sensor 107. That is, when the user writes characters or the like on the entry sheet 4 with the electronic pen 1, the pen pressure is applied to the pen tip portion 103, and when the pressure sensor 107 detects a writing pressure higher than a predetermined value, the processor 108 Is started, the LED 105 and the CMOS camera 106 are operated. Then, the communication unit 111 associates the pen-down information PD detected by the pressure sensor 107 with a pen ID, which will be described later, and transmits it to the stroke reproduction device 2 as entry information. Further, when the user finishes entering one stroke and removes the electronic pen 1 from the entry sheet 4, the pressure sensor 107 detects pen-up because no writing pressure exceeding a predetermined value is detected. Then, the communication unit 111 associates the pen-up information PU detected by the pressure sensor 107 with the pen ID, and transmits it as stroke information to the stroke reproducing device 2.

  The LED 105 and the CMOS camera 106 are attached near the pen tip portion 103 of the electronic pen 1, and an opening 102 is formed in a portion of the housing 101 that faces the LED 105 and the CMOS camera 106. The LED 105 illuminates infrared rays toward the vicinity of the pen tip portion 103 on the entry sheet 4. The region is slightly shifted from the position where the pen tip portion 103 contacts the entry sheet 4. The CMOS camera 106 captures a dot pattern in the area illuminated by the LED 105 and supplies image data of the dot pattern to the processor 108. Here, since carbon absorbs infrared rays, the infrared rays irradiated by the LED 105 are absorbed by the carbon contained in the dots. Therefore, the dot portion has a small amount of infrared reflection, and the portion other than the dot has a large amount of infrared reflection. By photographing with the CMOS camera 106, a threshold value is provided based on the difference in the amount of reflected infrared light, so that a dot region containing carbon can be distinguished from other regions. Therefore, even when an entry field or the like is printed on the entry sheet 4, the printed ink does not absorb in the infrared region, and therefore the processor 108 can recognize the dot pattern. Note that the shooting area by the CMOS camera 106 is a range including a size of about 2 mm × about 2 mm as shown in FIG. 3A, and the shooting by the CMOS camera 106 is performed at regular intervals of about 50 to 100 times per second. Is called.

  The processor 108 performs X and Y coordinates (simply "coordinate data") on the entry sheet 4 of the stroke (handwriting) to be entered by the user from the dot pattern of the image data supplied by the CMOS camera 106 during the user entry. , Also called “coordinate information”). That is, the processor 108 converts the image data of the dot pattern as shown in FIG. 3A supplied by the CMOS camera 106 into the data array shown in FIG. The data is converted into a Y coordinate bit value, and X, Y coordinate data is calculated from the data array by a predetermined calculation method. The processor 108 associates the current time (time stamp: entered time information) transmitted from the real-time clock 110, the pen pressure data, and the X and Y coordinate data (hereinafter, “coordinate attribute information”). Since the 6 × 6 dot pattern on the entry sheet 4 does not overlap in the entry sheet 4, when the user enters characters or the like with the electronic pen 1, the entered position corresponds to any position on the entry sheet 4. This can be specified by coordinate calculation by the processor 108.

  The memory 109 stores property information such as a pen ID such as “pen01” for identifying the electronic pen 1, a pen manufacturer number, and a pen software version. Then, the communication unit 111 associates the pen ID (electronic pen identification information), time information (time stamp), writing pressure data, and X and Y coordinate data, and transmits them to the stroke reproduction device 2 as entry information. . Transmission to the stroke reproducing device 2 by the communication unit 111 is performed instantaneously and sequentially by wireless transmission such as Bluetooth (registered trademark). Here, one or a plurality of coordinate attribute information generated between the pen-down and the pen-up of the electronic pen 1 and transmitted to the stroke reproducing device 2 is stored as stroke information by the stroke reproducing device 2. In other words, one stroke consists of one or a plurality of X, Y coordinates (coordinate points).

  Next, the entry information transmitted from the electronic pen 1 will be described with reference to FIG. When a user writes a stroke on the entry sheet 4 using the electronic pen 1, first, the electronic pen 1 is brought into contact with the entry sheet 4. Then, the pressure sensor 107 of the electronic pen 1 detects the writing pressure applied to the pen tip portion 103. When the processor 108 of the electronic pen 1 determines that the pressure sensor 107 has detected a writing pressure of a predetermined value or more, the processor 108 includes pen-down information PD indicating contact of the electronic pen 1 with the entry sheet 4 and identification information of the electronic pen 1. The entry information associated with the pen ID or the like is generated, and the communication unit 111 transmits the entry information to the stroke reproduction device 2. The user draws a stroke by moving the pen tip portion 103 after the pen tip portion 103 of the electronic pen 1 touches the entry sheet 4, and the processor 108 continues to calculate the coordinate information (X, Y) obtained by the calculation. , Coordinate attribute information including writing pressure data (P) detected by the pressure sensor 107, time information (T) transmitted by the real-time clock 110, and entry information in association with the pen ID, a dot pattern by the CMOS camera 106 The communication unit 111 sequentially generates the entry information according to the image capturing period and sequentially transmits the entry information to the stroke reproducing device 2. When the user finishes drawing the stroke and removes the electronic pen 1 from the entry sheet 4, the pressure sensor 107 does not detect the writing pressure. Therefore, the processor 108 determines that the pressure sensor 107 does not detect a writing pressure higher than a predetermined value. Then, entry information in which the pen-up information PU indicating the removal of the electronic pen 1 from the entry sheet 4 is associated with the pen ID which is the identification information of the electronic pen 1 is generated, and the entry information is entered in the communication unit 111. Information is transmitted to the stroke reproducing device 2. As described above, a set of coordinate attribute information generated by the electronic pen 1 when the user enters one stroke is referred to as stroke information.

[Stroke playback device]
Next, the stroke reproducing device 2 will be described. The stroke reproduction device 2 is configured by a personal computer or the like, which includes an antenna device capable of data communication with the electronic pen 1, a processor such as a CPU, a memory such as a ROM or a RAM, a display, a mouse or a keyboard as hardware. Is done. FIG. 6 is a functional block diagram of the stroke reproducing device 2. Functionally, the stroke reproducing apparatus 2 includes an input unit 21 such as a mouse and a keyboard, a receiving unit 22, a transmitting unit 23, a display unit 24, a storage unit 25, and a processing unit 26. Then, the stroke reproduction device 2 performs a predetermined process based on the entry information received from the electronic pen 1.

  The receiving means (acquiring means) 22 is configured by an antenna receiving circuit or the like, receives entry information from the electronic pen 1 and transmits it to the processing means 26. The transmission unit 23 transmits a video signal according to an instruction from the processing unit 26 to the projector 3. The data transmission method to the projector 3 may be wired or wireless. If the projector 3 is not connected, the transmission unit 23 may not be provided. The display means 24 is constituted by a display or the like, and displays the contents designated by the processing means 26.

  The storage unit 25 is configured by a memory such as a ROM or a RAM. The storage unit 25 stores the entry information received from the electronic pen 1 for each pen ID according to the processing instruction of the processing unit 26. In addition, the storage unit 25 stores a program of a playback application (playback application) 5 to be described later, secures a storage area according to an instruction from the processing unit 26, and stores stroke information. Further, the storage unit 25 stores display change conditions and setting line types, which will be described later, initial line types, representative time of the latest stroke or time information of the latest coordinate point, latest stroke number, and the like.

  The processing unit 26 includes a processor such as a CPU, acquires entry information from the storage unit 25, reproduces a stroke based on the entry information, displays the stroke on the display unit 24, and displays an image to be displayed on the display unit 24. A predetermined process such as causing the transmission unit 23 to transmit a video signal for projecting a similar image to the projector 3 to the projector 3 is executed. Specifically, the processing unit 26 activates the reproduction application 5 to display on the display unit 24, reads the stroke information from the storage unit 25, and reproduces the stroke on the reproduction application 5. The projector 3 projects an image similar to the image (video) displayed on the display unit 24 on the screen based on the video signal received from the transmission unit 23. In the present embodiment, the receiving unit 22 is configured as an acquiring unit, and the processing unit 26 stores entry information including stroke information received from the electronic pen 1 in the storage unit 25. The entry information is acquired from the storage medium in which the stroke entry information entered by the pen 1 (see FIG. 5) is stored in advance or from an external computer device via the storage medium reading means or network connection, and stored in the storage means 25. It is good.

[Screen display by playback application]
Next, a display form of the playback application (playback application) 5 that the stroke playback device 2 processes based on stroke entry information will be described. The reproduction application 5 is a program executed by the stroke reproduction device 2 and reproduces a stroke (handwritten stroke) that the user has entered on the entry sheet 4 with the electronic pen 1 based on the entry information stored in the storage unit 25. Then, the stroke reproducing device 2 is caused to function so as to be displayed in the stroke display area 501 on the screen of the display means 24. For example, the processing unit 26 sequentially displays the strokes in the order in which the coordinate points are entered (in the order of time information) based on the coordinate attribute information constituting the stroke information included in the entry information read from the storage unit 25. Then, the image is drawn and added to the display means 24. With the reproduction application 5, the processing means 26 draws a stroke in which coordinate points adjacent to each other in time series are connected with straight lines with respect to all coordinate attribute information included in the stroke information or coordinate points of the thinned coordinate attribute information. Alternatively, the processing unit 26 may draw the stroke with a smooth line such as a spline curve or a Bezier curve from a plurality of coordinate points constituting the stroke.

<First Embodiment>
(Display form 1)
FIG. 7 shows a display form at a certain point in time of the playback application 5 that displays the entry content of the electronic pen 1A (pen ID “pen01”) in the first embodiment. In the stroke reproduction device 2, the entry information corresponding to the user's handwritten stroke stored in the storage unit 25 is first drawn as a stroke by the processing unit 26, and all strokes are displayed on the stroke display area 501 of the window of the reproduction application 5. Is displayed. When the stroke to be displayed becomes larger than the stroke display area 501 due to enlarged display or the like, the processing means 26 validates the horizontal scroll bar and the vertical scroll bar, scrolls the stroke display area 501 by the user's mouse operation, The entire stroke may be displayed in a plurality of times. Further, in the reproduction application 5, all users who have filled in the entry sheet 4 with the electronic pen 1 are displayed as user-specific display buttons 503 in the user display list 502 on the right side of the screen. In the display example of FIG. 7, a user-specific display button 503A corresponding to the user who uses the electronic pen 1A with the pen ID “pen01” and a user-specific display button 503B corresponding to the user who uses the electronic pen 1B with the pen ID “pen02”. Is displayed. In the playback application 5, an application end button 505 is further displayed in the upper right part of the screen, and an option display button 504, a playback button 506, and a stop button 507 are displayed in the lower right part of the screen. The play button 506 is an execution button for instructing to reproduce the stroke as a moving image that reproduces the state of entry based on the time information, and the stop button 507 is an execution button for instructing to stop the reproduction of the stroke.

  Here, when the viewer selects the user-specific display button 503A with the pen ID “pen01” (click operation of the mouse), the processing unit 26 selects the user-specific display button 503A, and places it on the left side of the user-specific display button 503A. “●” is displayed. At this time, nothing is displayed on the left side of the unselected user-specific display button 503B (indicated by a broken line “◯” in FIG. 7). In the example of FIG. 7, the selected state of the button is indicated by a black circle “●”, and the non-selected state is indicated by a broken line “○”, but the color of the entire button may be changed or the expression of the button may be uneven. Thus, the selected / unselected state may be indicated. When the viewer selects the display button 503A for each user, the processing unit 26 displays the stroke display area 501A on the screen, calls the stroke information corresponding to the pen ID “pen01” stored in the storage unit 25, and displays the stroke display. All strokes of the pen ID “pen01” are displayed in the area 501A. When the user-specific display button 503A is not selected and the viewer selects the user-specific display button 503B with the pen ID “pen02” displayed in the user display list 502, the processing unit 26 selects the stroke display area 501B and the pen ID “ All strokes of “pen02” are displayed (see FIG. 10). If the viewer selects the user-specific display button 503B of the pen ID “pen02” displayed in the user display list 502 when the user-specific display button 503A is in the selected state, the processing unit 26 selects the stroke display area 501A and the pen ID. All strokes of “pen01” and all strokes of the stroke display area 501B and pen ID “pen02” are displayed (see FIG. 11). Further, when the viewer selects the option display button 504, the processing unit 26 pops up a display change condition setting screen (window) 60. When the viewer selects the application end button 505, the processing unit 26 ends the reproduction application 5.

  When the viewer selects the play button 506 while the user-specific display button 503A is selected, the processing unit 26 temporarily deletes all strokes of the pen ID “pen01” displayed in the stroke display area 501A, In the stroke display area 501A where nothing is displayed, the strokes of the pen ID “pen01” are reproduced and displayed in the order written. When the viewer selects the stop button 507, the processing unit 26 stops the reproduction of the stroke.

  FIG. 8 shows an example of the display change condition setting screen 60 in the first embodiment. The display change condition setting screen 60 includes a reproduction stroke color setting list 601, a reproduction stroke size setting list 602, a change time setting list 603, a confirmation button 604 and a cancel button 605. Next, the function of each component of the display change condition setting screen 60 will be described. The reproduction stroke color setting list 601 is a pull-down menu method, and sets the reproduction stroke color before changing the display (sets the stroke color to be displayed to black, red, blue, etc.). The playback stroke size setting list 602 is a pull-down menu method, and sets the playback stroke size (pt) before the display is changed (hereinafter, the playback stroke color and playback stroke size are referred to as “set line type”). . The change time setting list 603 has a pull-down menu method, and sets a change time as a condition for changing the display. The confirm button 604 confirms the setting content of the display change condition setting screen 60 and stores it in the storage means 25 and closes the display change condition setting screen 60. A cancel button 605 cancels the setting contents of the display change condition setting screen 60 and closes the display change condition setting screen 60.

(Display form 2)
FIG. 9 shows a display form at a certain point in time for the playback application 5 when setting the setting line type and the change time in the first embodiment. When the viewer selects the option display button 504, the processing unit 26 displays the display change condition setting screen 60 in a pop-up manner. The viewer can make settings (setting line type and change time) related to the stroke change display on the display change condition setting screen 60. Specifically, the setting line type is set to “red” color, thickness “24 pt”, and change time “10 seconds” (see FIG. 8). The setting line type and change time may be set during the reproduction display of the handwritten stroke. As shown in FIG. 9, in a state where the viewer selects the display button 503A for each user, the setting line type and the change time are set on the display change condition setting screen 60, and the confirmation button 604 is selected to set the display change condition. When the reproduction button 506 is selected after the screen 60 is closed, the processing means 26 displays the stroke corresponding to the stroke information to be displayed by the set line type in the stroke display area 501A with “red” color and thickness “24 pt”. Playback and display are performed, and the display is changed and displayed with the default line type in order from the stroke in which the change time “10 seconds” has elapsed since the display. Here, the default line type is “black” and the thickness is “10 pt”.

  Here, since one stroke is composed of one or a plurality of coordinate attribute information generated from pen down to pen up of the electronic pen 1, one stroke information is included in one stroke information. Will be included. Therefore, the processing means 26 determines whether or not the change time has elapsed with the time information (T1 in FIG. 5) associated with the coordinate attribute information immediately after pen-down as the representative time of one stroke. The representative time of the stroke may be time information (Tn in FIG. 5) associated with the coordinate attribute information immediately before pen-up, and time information associated with each of all the coordinate attribute information constituting one stroke. It is good also as time information which averaged.

(Display form 3)
FIG. 10 shows a display form at a certain time of the playback application 5 when the display content is switched from the display example of FIG. 7 to the entry content of the electronic pen 1B (pen ID “pen02”) in the first embodiment. ing. When the viewer selects the user-specific display button 503A with the pen ID “pen01” again, the processing unit 26 deselects the user-specific display button 503A and turns off the display of “●” on the left side of the user-specific display button 503A. (Represented by a broken line “◯”), the stroke display area 501A is erased from the screen. Next, when the viewer selects the user-specific display button 503B with the pen ID “pen02”, the processing unit 26 selects the user-specific display button 503B and displays “●” on the left side of the user-specific display button 503B. At the same time, the stroke display area 501B is displayed on the screen, the stroke information corresponding to the pen ID “pen02” stored in the storage means 25 is called, and all the strokes of the pen ID “pen02” are displayed in the stroke display area 501B. .

  When the viewer selects the play button 506 in a state where the user-specific display button 503B is selected, the processing unit 26 temporarily deletes all the strokes of the pen ID “pen02” displayed in the stroke display area 501B. In the stroke display area 501B where nothing is displayed, the strokes of the pen ID “pen02” are reproduced and displayed in the order written. When the viewer selects the stop button 507, the processing unit 26 stops the reproduction of the stroke.

(Display form 4)
FIG. 11 shows a case where the display contents of the electronic pen 1A (pen ID “pen01”) and the electronic pen 1B (pen ID “pen02”) are switched from the display example of FIG. The display form at a certain point of the playback application 5 is shown. When the viewer selects the user-specific display button 503B of “pen02” in a state where the user-specific display button 503A of “pen01” is selected, the processing unit 26 selects both the user-specific display buttons 503A and 503B. Both are selected and “●” is displayed on the left side. The processing means 26 shifts the display position of the stroke display area 501A on the screen and displays the stroke display area 501B. When the viewer selects the user-specific display buttons 503A and 503B, the processing unit 26 calls the stroke information corresponding to the pen IDs “pen01” and “pen02” stored in the storage unit 25 and puts the pen in the stroke display area 501A. All strokes with ID “pen01” are displayed in the stroke display area 501B, and all strokes with pen ID “pen02” are displayed.

  When the viewer selects the play button 506 in a state where both the user-specific display buttons 503A and 503B are selected, the processing unit 26 temporarily displays all the strokes displayed in the stroke display area 501A and the stroke display area 501B. The strokes of the pen ID “pen01” and the pen ID “pen02” are simultaneously reproduced and displayed in the stroke display area 501A and the stroke display area 501B where nothing is displayed. Then, when the viewer selects the stop button 507, the processing means 26 simultaneously stops the stroke reproduction.

(Display form 5)
FIG. 12 shows the change over time of the display form of the playback application 5 that plays back and displays the entry contents of the electronic pen 1A (pen ID “pen01”) in the first embodiment. It is assumed that time has passed in the order of FIGS. 11 (a), 11 (b), and 11 (c).
First, when the viewer selects the user-specific display button 503 </ b> A of “pen01”, the processing unit 26 sets the default line type (“” based on the stroke information of the pen ID “pen01” stored in the storage unit 25. All strokes from “December (December)” on the first line to “Daffodil, Cattleya” on the fifth line are displayed in the stroke display area 501A with the color “black” and thickness “10 pt” (see FIG. 7). ). Subsequently, when the viewer selects the play button 506, the processing unit 26 deletes all strokes displayed in the stroke display area 501A, and the representative time set in each stroke information of the pen ID “pen01”. Referring to FIG. 4, the strokes are reproduced and displayed in the stroke display area 501A in the order in which the strokes are entered on the entry sheet 4A (in order of the representative time), thereby reproducing the entry process of the electronic pen 1A (pen ID “pen01”). . At this time, the processing means 26 displays the newly reproduced stroke with the set line type (“red” color, thickness “24 pt”), and the latest stroke information is set from the representative time set in each stroke information. When the change time “10 seconds” elapses before the representative time, the stroke is changed to the default line type (“black” color, thickness “10 pt”) and displayed.

At the time of FIG. 12 (a), each stroke constituting “December (December)” has already been changed by “10 seconds”, and is changed and displayed with the default line type. Yes. The strokes constituting “Christmas” have not been changed and are displayed with the set line type.
At the time of FIG. 12 (b), each stroke constituting “December (December)” “Christmas” “General Cleaning” “Emperor Birth” has already passed the change time “10 seconds”, and the initial setting The line type is changed and displayed. The strokes constituting “birthday” and “tan” do not have the change time “10 seconds”, and are displayed with the set line type.
At the time of FIG. 12 (c), the strokes constituting “December (December)”, “Christmas”, “General Cleaning”, “Emperor's Birthday”, “Tanzanite” have already passed the change time “10 seconds”. The default line type is changed and displayed. The strokes that make up “Daffodil, Cattleya” do not pass the change time “10 seconds” and are displayed with the set line type. In the first embodiment, each stroke is changed and displayed. In fact, in one character composed of a plurality of strokes, some strokes are displayed with the set line type, and other strokes are the default lines. There is also a point in time when the seed is changed.

[Stroke acquisition process flow]
A stroke acquisition process flow (stroke storage process flow) by the stroke reproduction system 10 of the first embodiment will be described with reference to FIG.
FIG. 13 is a stroke acquisition process flow executed for each entry information. When the user enters characters or the like on the entry form 4 with the electronic pen 1, the electronic pen 1 transmits the entry information associated with the pen-down information PD and the pen ID to the stroke display device 2 at the time of the pen-down. During the pen-up information PU, the pen-up information PU is transmitted to the stroke display device 2 in which the coordinate attribute information including the coordinate information calculated by imaging the dot pattern along the stroke and the pen ID is associated. The entry information associated with the pen ID is transmitted to the stroke display device 2 (step S101).

  In the stroke display device 2, when the receiving unit 22 receives the entry information transmitted from the electronic pen 1, the processing unit 26 stores the entry information in the storage unit 25 (step S201). Next, the processing means 26 determines whether or not the pen-down information PD is included in the entry information (step S202). When it is determined that the pen-down information PD is included (step S202: Yes), the processing unit 26 causes the storage unit 25 to set a storage area for new stroke information (step S203). On the other hand, when it is determined in step S202 that the pen-down information PD is not included (step S202: No), the processing unit 26 determines whether the pen-up information PU is included in the entry information (step S204). When it is determined that the pen-up information PU is not included (step S204: No), the processing unit 26 stores the coordinate attribute information included in the entry information as new stroke information, which is set in the storage unit 25 in step S203. The area is stored (step S205). If there is new stroke information already stored at this time, the storage means 25 adds the coordinate attribute information as a part of the stroke information and stores it. On the other hand, when the pen-up information PU is identified in step S204 (step S204: Yes), the processing unit 26 includes, for example, the coordinate attribute information constituting the stroke information stored in the storage unit 25 in step S205. The time information (T1 in FIG. 5) included in the coordinate attribute information generated by the electronic pen 1 immediately after the pen-down information PD is set as the representative time of this stroke information and stored in the storage means 25 (step S206). .

[Stroke playback processing]
Stroke reproduction processing by the stroke reproduction system 10 of the first embodiment will be described with reference to FIGS. 14 to 16 by dividing it into a stroke display processing flow, a stroke reproduction display processing flow, and a stroke change display processing flow.

[Stroke display processing flow]
FIG. 14 is a stroke display processing flow executed by selecting the display button 503 for each user. When the viewer selects the display button 503 for each user, the processing unit 26 reads all stroke information and representative time associated with the selected pen ID from the storage unit 25 (step S301). Next, the processing means 26 reads the default line type from the storage means 25 (step S302), and based on the stroke information, all of the pen IDs corresponding to the pen ID selected in the stroke display area 501 with the default line type. Are displayed (step S303).

[Stroke playback display processing flow]
FIG. 15 is a stroke playback display processing flow executed by selecting the playback button 506. When the viewer selects the play button 506 after the stroke display process shown in FIG. 14 is executed, the processing means 26 deletes all handwritten strokes displayed in the stroke display area 501 (step S401). In a state where the stroke display area 501 is returned to the blank page, the processing unit 26 reads the setting line type and change time set by the viewer on the display change condition setting screen 60 from the storage unit 25 (step S402). Subsequently, the processing means 26 refers to the representative time set in each stroke information, and reproduces the latest stroke information (hereinafter referred to as “the latest stroke”) corresponding to the stroke information corresponding to the handwritten strokes entered earlier in time order. It is rendered as “information”) and displayed in the stroke display area 501 with the set line type (step S403). Then, the processing means 26 stores the representative time set in the latest stroke information in the storage means 25 as the representative time of the latest stroke (step S404). Subsequently, the processing unit 26 determines whether or not there is stroke information to be drawn next (step S405), and when it is determined that there is a next stroke (step S405: Yes), the processing unit 26 returns to step S402 and sets the setting line. The seed and change time are read from the storage means 25. Then, the processing means 26 draws the next stroke information that is earlier in time order as the latest stroke information to be reproduced and displays it in the stroke display area 501 (step S403). Then, the processing means 26 updates and stores the representative time of the latest stroke stored in the storage means 25 with the representative time set in the latest stroke information as the representative time of the latest stroke (step S404). While it is determined in step S405 that the next stroke is present (step S405: Yes), the processing unit 26 repeats steps S402 to S405 and reproduces the entry process by drawing the strokes in the order of entry. . If the processing means 26 determines in step S405 that there is no next stroke (step S405: No), it ends the stroke reproduction display processing.

[Stroke change display processing flow]
FIG. 16 is a stroke change display processing flow executed for each stroke (stroke information) displayed in the stroke display area 501 in step S403 of the stroke reproduction display processing flow shown in FIG. The processing means 26 executes a stroke change display process in parallel with the stroke reproduction process. The stroke change display processing flow of FIG. 16 will be described with the processing unit 26 assuming that the stroke displayed in the stroke display area 501 in step S403 of FIG. The processing unit 26 reads the representative time of the latest stroke from the storage unit 25 (step S501), compares the representative time set in the stroke information corresponding to the target stroke with the representative time of the latest stroke information, and compares the target stroke. It is determined whether or not the change time has elapsed since the message was displayed (step S502). When it is determined that the change time has not elapsed (step S502: No), the processing unit 26 reads the set line type and the change time from the storage unit 25 (step S503), and targets the stroke display area 501 with the set line type. The stroke is displayed (step S504), and the process returns to step S501. The processing means 26 repeats steps S501 to S504 until it is determined in step S502 that the change time has elapsed. When it is determined that the change time has elapsed (step S502: Yes), the processing unit 26 reads the initial line type from the storage unit 25 (step S505), changes the target stroke to the initial line type, and displays it. (Step S506).

  The stroke reproduction device 2 has an earlier time written on the entry sheet 4 based on the stroke information associated with the pen ID selected by the user with the display button 503 for each user and the representative time set for each stroke information. The above stroke reproduction display process is executed for each piece of stroke information in order from the stroke. As described above, the processing means 26 reproduces the entry process by drawing the strokes in the order of entry and displaying them in the stroke display area 501. In addition, new strokes that have not been changed and have not elapsed have been displayed with the set line type, and strokes that have passed the change time have been changed with the default line type to display the newly displayed strokes. Thus, the viewer can grasp at a glance the latest stroke display location in the reproduction process. Further, if it is determined in step S502 that the change time has not elapsed, the setting line type and change time are read in step S503, so that even if the viewer changes the set line type and change time during the stroke reproduction. The change can be reflected in the display on the screen.

(Display form 1)
Next, the stroke reproduction process in the display mode 1 shown in FIG. 7 will be described with reference to FIG. FIG. 7 shows a stroke display state in which the stroke display processing flow shown in FIG. 14 is executed for each stroke information of each character entered on the entry sheet 4A with the electronic pen 1A. By selecting the user-specific display button 503A by the viewer, the processing unit 26 causes the stroke information and the representative time associated with the pen ID “pen01”, the default line type (“black” color, thickness “10 pt”). Is read from the storage means 25 (see steps S301 and S302). Based on the stroke information of the pen ID “pen01”, all the handwritten strokes corresponding to the selected pen ID are displayed on the first line “December (Death, December). ) ”To“ Daffodil, Cattleya ”on the sixth line are displayed in the stroke display area 501A with the default line type (see step S303).

(Display form 3)
Next, the stroke reproduction process in the display mode 3 shown in FIG. 10 will be described with reference to FIG. FIG. 10 shows a stroke display state in which the stroke display processing flow shown in FIG. 14 is executed for each stroke information of each character entered on the entry sheet 4B with the electronic pen 1B. By selecting the user-specific display button 503B of the pen ID “pen02” by the viewer, the processing unit 26 detects the stroke information and the representative time associated with the pen ID “pen02”, the default line type (“black” color, (Thickness “10 pt”) is read from the storage means 25 (see steps S301 and S302), and all handwritten strokes corresponding to the selected pen ID based on the stroke information of the pen ID “pen02” All of “November (November, November)” to “753” in the fifth line are displayed in the stroke display area 501B with the default line type (see step S303).

(Display form 4)
Next, in the stroke reproduction process in the display mode 4 shown in FIG. 11, the processing unit 26 simultaneously displays the stroke display areas 501A and 501B on the screen by the selection of the user-specific display buttons 503A and 503B by the viewer, and the storage unit The stroke information and the representative time associated with the pen IDs “pen01” and “pen02” read from 25 are read from the storage means 25, and the stroke reproduction process in the display mode 1 and the stroke reproduction process in the display mode 3 are performed. Display executed screens in parallel.

(Display form 5)
Next, stroke reproduction processing in the display mode 5 shown in FIG. 12 will be described with reference to FIGS. 15 and 16. 12 shows the stroke reproduction display processing flow and the diagram shown in FIG. 15 after the stroke display processing flow shown in FIG. 14 is executed for the stroke information of each character entered on the entry sheet 4A with the electronic pen 1A. FIG. 12 shows the stroke reproduction processing state at three points in time when the stroke change display processing flow shown in FIG. 16 is executed. FIG. 12 (a) to FIG. 12 (c) are shown in time series. The process of filling in the entry sheet 4A is reproduced, and the characters displayed in the stroke display area 501A increase as time passes by the stroke reproduction display process shown in FIG. In the stroke display area 501A, “December (December)” and “Christmas” are displayed over two lines in FIG. In FIG. 12B, three lines “General cleaning”, “Emperor's birthday”, and “Tan” are added from the state of FIG. 12A, and the stroke is displayed over five lines. In FIG. 12 (c), four characters are added to the fifth line from the state of FIG. 12 (b), “Tanzanite”, and one line “Daffodil, Cattleya” are added, and the stroke is displayed over six lines. Also, in FIG. 12A, for all stroke information in each character of “December (December),” the latest stroke information (the end of “S”) from the representative time (see FIG. 13: step S206). The change time (10 seconds) has elapsed by the representative time associated with the stroke (see step S502), and the line type has already been changed to the initial line type (see step S506). On the other hand, all stroke information in each character of “Christmas” has not changed time from the representative time to the representative time associated with the latest stroke information (the last stroke of “Su”) ( In step S502, the stroke is displayed with the set line type (see step S504).

  In the state of FIG. 12 (b) after a lapse of time from the state of FIG. 12 (a), all strokes in the characters “December (December)”, “Christmas”, “General cleaning”, “Emperor ’s birth” As for the information, the change time has passed from the representative time to the representative time associated with the latest stroke information (the last stroke of “n”) (see step S502), and the line type has already been changed to the default line type. Is displayed (see step S506). On the other hand, all the stroke information in the characters “birthday” and “tan” has not passed the change time from the representative time to the representative time associated with the latest stroke information (see step S502). In this state, the stroke is displayed with the set line type (see step S504). Furthermore, in the state of FIG. 12 (c) after a lapse of time, all stroke information in each character of “December (December)”, “Christmas”, “General cleaning”, “Emperor ’s birthday”, “Tanzanite” Has changed from the representative time to the representative time associated with the latest stroke information (the last stroke of “A”) (see step S502), and has already been changed to the default line type. Is displayed (see step S506). On the other hand, all the stroke information in each character of “Daffodil, Cattleya” has not passed the change time from the representative time to the representative time associated with the latest stroke information (see step S502). This is a state where a stroke is displayed with seeds (see step S504).

  Specifically, in the display state of FIG. 12A, in the stroke change display process executed for the stroke “”, for example, the entry time (representative time) of the stroke “” is 14:10:45. If the representative time of the latest stroke information corresponding to the stroke of the second stroke of “su” is 14:10:55, the processing means 26 displays “10” after the stroke “” is displayed. It is determined that “second” has elapsed (step S502: Yes), and the stroke “” is changed with the default line type and displayed (step S506). On the other hand, at this time, since the representative time of each stroke constituting “Christmas” is set as the representative time later than the representative time of the stroke “”, the processing means 26 “10” after the stroke is displayed. It is determined that “second” has not elapsed (step S502: No), and the setting line type is displayed (step S504).

In the display state of FIG. 12B, in the stroke change display process executed for the stroke of the 15th stroke (the last) of “Birth”, for example, the representative time of the stroke of the 15th stroke of “Birth” is 14 If the representative time of the latest stroke information corresponding to the stroke of the second stroke of “n” is 14:11:50 when the time is 11:40, the processing means 26 determines the 15 strokes of “Birth”. It is determined that “10 seconds” have elapsed since the eye stroke was displayed (step S502: Yes), and the stroke of the 15th stroke of “birth” is changed and displayed with the default line type (step S506). On the other hand, at this time, each stroke of “birthday tongue”
Since a representative time later than the representative time of the stroke of the 15th stroke of “Birth” is set, the processing means 26 determines that “10 seconds” have not elapsed since the stroke was displayed (step S502). : No), and display with the set line type (step S504).

  In the display state of FIG. 12C, in the stroke change display process executed for the stroke of the second stroke of “G”, for example, the representative time of the stroke of the second stroke of “G” is 14:12 If the representative time of the latest stroke information corresponding to the stroke of the second stroke of “A” is 30 seconds 12 seconds 40 seconds, the processing means 26 determines the stroke of the second stroke of “G”. It is determined that “10 seconds” have elapsed since the display of “” (step S502: Yes), and the stroke of the second stroke of “G” is changed and displayed with the default line type (step S506). On the other hand, since the representative time later than the representative time of the stroke of the second stroke of “G” is set for each stroke of “Daffodil, Cattleya”, the processing means 26 displays “ It is determined that “10 seconds” has not elapsed (step S502: No), and the setting line type is displayed (step S504).

[Operational effects of the stroke reproduction system of the first embodiment]
According to this stroke reproduction system 10, the viewer can reproduce and display the entry contents entered on the entry sheet 4 by the user with the electronic pen 1 on the screen of the display means 24 of the stroke reproduction apparatus 2 as a handwritten stroke. And the user's entry process can be reproduced. In addition, when replaying and displaying, the newly replayed stroke is displayed in the “red” color that is the set line type and the thickness “24 pt”, and the stroke that has passed the change time is the “black” color that is the default line type. Even if the entry position is changed frequently or the entry information is confirmed while operating the PC device, etc., by displaying the thickness of “10 pt” and highlighting the newly reproduced stroke. The viewer can grasp at a glance the latest entry location in the entry process without any special operation. The setting line type for emphasizing a new stroke can be set by the viewer on the display change condition setting screen 60. For example, even if the setting is changed during playback, the changed setting line type is used for stroke playback. It is possible to reflect.

Second Embodiment
Next, a second embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate. In the stroke reproduction system 10 of the first embodiment, all handwritten strokes displayed in the stroke display area 501 are once erased, and the strokes are reproduced in the stroke display area 501 where no stroke is displayed and displayed with the set line type. On the other hand, in the stroke reproduction system 11 of the second embodiment, for all the strokes displayed in the stroke display area 501, the strokes to be newly reproduced are changed to the set line type in the entered order while all the strokes are displayed. And display. In other words, in the second embodiment, the stroke reproduction display processing flow (see FIG. 18) is different from the stroke reproduction display processing flow (see FIG. 15) of the first embodiment.

(Display form 6)
FIG. 17 shows the change over time of the display form of the playback application 5 that plays back and displays the entry contents of the electronic pen 1A (pen ID “pen01”) in the second embodiment. It is assumed that time elapses in the order of FIGS. 17 (a), 17 (b), and (c).
First, when the viewer selects the user-specific display button 503 </ b> A of “pen01”, the processing unit 26 sets the default line type (“” based on the stroke information of the pen ID “pen01” stored in the storage unit 25. All strokes from “December (December)” on the first line to “Daffodil, Cattleya” on the fifth line are displayed in the stroke display area 501A with the color “black” and thickness “10 pt” (see FIG. 7). ). Next, when the viewer selects the play button 506, the processing unit 26 refers to the representative time set in each stroke information of the pen ID “pen01”, and uses the default line type in the stroke display area 501A. By changing the displayed stroke to the set line type ("red" color, thickness "24 pt") in the order entered on the entry form 4A, the electronic pen 1A (pen ID "pen01") is entered. Reproduce the process. Further, the processing means 26 changes the stroke with the set line type (“red” color, thickness “24 pt”) and displays the stroke again when the change time “10 seconds” elapses. The line type (“black” color, thickness “10 pt”) is displayed.

At the time of FIG. 17 (a), each stroke composing “December (December)” has already been changed by the set line type, and the change time “10 seconds” has already passed. The line type is changed and displayed. Each stroke constituting “Christmas” is displayed with the set line type since the change time “10 seconds” has not elapsed since it was changed and displayed with the set line type. Since the strokes constituting “main cleaning”, “Emperor's birthday”, “Tanzanite”, and “Daffodil, Cattleya” are in a state before being changed and displayed with the set line type, they are displayed with the default line type.
At the time of FIG. 17B, the strokes constituting “December (December)”, “Christmas”, “General cleaning”, and “Emperor ’s birth” have already been changed and displayed in the set line type, and the change time is “10 seconds”. ”Has elapsed, and changed and displayed again with the default line type. The strokes constituting “birthday” and “tan” are displayed with the set line type after the change time “10 seconds” has not elapsed since they were changed and displayed with the set line type. Each stroke constituting “Zanite” and “Daffodil, Cattleya” is in a state before being changed and displayed with the set line type, and is thus displayed with the default line type.
At the time of FIG. 17 (c), the strokes constituting “December (December)”, “Christmas”, “General Cleaning”, “Emperor's Birthday”, and “Tanzanite” have already been changed after being changed and displayed in the set line type. The time “10 seconds” has elapsed, and the display is changed and displayed again with the default line type. The strokes constituting “Daffodil, Cattleya” are displayed with the set line type since the change time “10 seconds” has not elapsed since they were changed and displayed with the set line type. As in the first embodiment, in the second embodiment, the display is changed and displayed for each stroke. In fact, in one character composed of a plurality of strokes, some strokes are displayed in the set line type. There are also times when other strokes are changed and displayed with the default line type.

[Stroke playback processing]
With respect to the stroke reproduction processing by the stroke reproduction system 11 of the second embodiment, portions different from the first embodiment will be described with reference to FIG.
The stroke display processing flow (see FIG. 14) executed by the user selecting the display button 503 for each user is the same as in the first embodiment.

[Stroke playback display processing flow]
FIG. 18 is a stroke playback display processing flow executed when the playback button 506 is selected. When the viewer selects the play button 506 after the stroke display process shown in FIG. 14 is executed, the processing unit 26 stores the set line type and change time set by the viewer on the display change condition setting screen 60. (Step S411). Subsequently, the processing means 26 refers to the representative time set in each stroke information, and the latest stroke information (latest stroke) to reproduce the stroke information corresponding to the handwritten stroke first entered in time order. The corresponding stroke displayed in the stroke display area 501 is changed to the set line type and displayed (step S412). Then, the processing means 26 stores the representative time set in the latest stroke information in the storage means 25 as the representative time of the latest stroke (step S413). Subsequently, the processing means 26 determines whether or not there is stroke information to be reproduced next (step S414). If it is determined that there is a next stroke (step S414: Yes), the processing means 26 returns to step S411 and sets the setting line. The seed and change time are read from the storage means 25. Then, the processing means 26 displays the next stroke information that is early in time order by changing the corresponding stroke displayed in the stroke display area 501 as the latest stroke information to be reproduced to the set line type (step S412). . Then, the processing means 26 updates and stores the representative time of the latest stroke stored in the storage means 25 as the representative time of the latest stroke as the representative time set in the latest stroke information (step S413). While it is determined in step S414 that the next stroke is present (step S414: Yes), the processing unit 26 repeats steps S411 to S414 and reproduces the entry process by drawing the strokes in the order of entry. . If the processing means 26 determines in step S414 that there is no next stroke (step S414: No), it ends the stroke reproduction display processing.

[Stroke change display processing flow]
The stroke change display processing flow executed for each stroke (stroke information) displayed in the stroke display area 501 in step S412 of the stroke reproduction display processing flow shown in FIG. 18 is the same as in the first embodiment (FIG. 16). The processing means 26 executes a stroke change display process in parallel with the stroke reproduction display process. If the processing unit 26 sets the stroke changed and displayed in the stroke display area 501 in step S412 of FIG. 18 at a certain time as “target stroke”, the processing unit 26 performs the same procedure as the stroke change display processing flow of the first embodiment. Execute the stroke change process.

(Display form 6)
Next, stroke reproduction processing in the display mode 6 shown in FIG. 17 will be described with reference to FIGS. 14, 16 and 18. FIG. 17 shows the stroke reproduction display processing flow and the diagram shown in FIG. 18 after the stroke display processing flow shown in FIG. 14 is executed for the stroke information of each character entered on the entry sheet 4A with the electronic pen 1A. FIG. 17A to FIG. 17C show the stroke reproduction processing states at three points in time when the stroke change display processing flow shown in FIG. 16 is being executed. The process of filling in the entry sheet 4A is reproduced, and the characters displayed in the set line type on the stroke display area 501A shift with time by the stroke reproduction display process shown in FIG. In the stroke display area 501A, in FIG. 17 (a) to (c), “December (December)”, “Christmas”, “General cleaning”, “Emperor ’s birthday”, “Tanzanite”, “Daffodil, “Catreia” is displayed. In FIG. 17A, only the strokes constituting “Christmas” are changed to the set line type and displayed. In FIG. 17B, only the strokes constituting “birthday” and “tan” are changed and displayed with the set line type. In FIG. 17C, only the strokes constituting “Daffodil, Cattleya” are changed and displayed by the set line type.

  In FIG. 17A, for all stroke information in each character of “December (December),” the latest stroke information (the last stroke of “S”) from the representative time (see FIG. 13: step S206). The change time (10 seconds) has elapsed by the representative time associated with () (see step S502), and has already been changed to the default line type (see step S506). On the other hand, all the stroke information in each character of “Christmas” is displayed after the corresponding stroke displayed in the stroke display area 501A is changed with the set line type (see step S412) and from the representative time. The change time has not elapsed before the representative time set in the latest stroke information (see step S502), and the stroke is displayed with the set line type (see step S504). Also, for all stroke information in the characters “General Cleaning”, “Emperor ’s Birthday”, “Tanzanite”, and “Daffodil, Cattleya”, the stroke playback process has not yet been executed, and the default line type In this state, the stroke is displayed (see step S303).

  In the state of FIG. 17 (b) after a lapse of time from the state of FIG. 17 (a), all strokes in the characters “December (December)”, “Christmas”, “General cleaning”, “Emperor ’s birth” are shown. As for the information, the change time has elapsed from the representative time to the representative time set in the latest stroke information (the last stroke of “n”) (see step S502), and the information has already been changed to the default line type. Are displayed (see step S506). On the other hand, all the stroke information in the characters “birthday” and “tan” is displayed after the corresponding stroke displayed in the stroke display area 501A is changed with the set line type (see step S412). The change time has not elapsed from the representative time to the representative time set in the latest stroke information (see step S502), and the stroke is displayed with the set line type (see step S504). In addition, for all the stroke information in the characters “Zanite” and “Daffodil, Cattleya”, the stroke playback process has not been executed yet, and the stroke is displayed with the default line type. (See step S303).

  Further, in the state of FIG. 17 (c) after a lapse of time, all stroke information in each character of “December (December)”, “Christmas”, “General cleaning”, “Emperor ’s birthday”, “Tanzanite” Has changed from the representative time to the representative time associated with the latest stroke information (the last stroke of “A”) (see step S502), and has already been changed to the default line type. Is displayed (see step S506). On the other hand, all stroke information in each character of “Daffodil, Cattleya” is displayed after the corresponding stroke displayed in the stroke display area 501A is changed with the set line type (see step S502). The change time has not elapsed from the time (see step S206) to the representative time set in the latest stroke information (see step S502), and the stroke is displayed with the set line type (see step S504). .

[Operational effects by the stroke reproduction system of the second embodiment]
According to the stroke reproduction system 11 of the second embodiment, the viewer reproduces the entry contents entered on the entry sheet 4 by the user with the electronic pen 1 on the screen of the display means 24 of the stroke reproduction apparatus 2 as a handwritten stroke. It can be displayed and the user entry process can be reproduced. In addition, when replaying and displaying all strokes, the newly replayed stroke is changed and displayed with the “Aka” color and thickness of “24 pt” as the set line type, and the stroke after the change time is the initial It is displayed in “Kuro” color and thickness “10pt” which is the setting line type, and the newly replayed stroke is emphasized, so that the entry position changes frequently, and the entry information is operated while operating the PC device etc. Even when confirming, the viewer can grasp at a glance the latest entry location in the entry process without performing any special operation. The setting line type for emphasizing a new stroke can be set by the viewer on the display change condition setting screen 60. For example, even if the setting is changed during playback, the changed setting line type is used for stroke playback. It is possible to reflect. Furthermore, since the entire handwritten stroke is displayed even during reproduction, the viewer can check the user's entry process while grasping the whole.

<Third Embodiment>
Next, a third embodiment will be described. The same parts as those in the first and second embodiments are denoted by the same reference numerals, and description thereof will be omitted as appropriate. The third embodiment is different from the first and second embodiments in the unit for executing the stroke reproduction display process. In the first and second embodiments, the stroke reproduction display process is executed for each stroke information, whereas in the third embodiment, the stroke reproduction process is executed for each coordinate point (coordinate information) constituting the stroke. The
(Display form 7)
FIG. 19 shows the change over time by enlarging the stroke reproduced and displayed on the reproduction application 5 in the third embodiment. It is assumed that time elapses in the order of FIGS. 19A, 19B, 19C, and 19D.
The stroke is a set of coordinate points that are continuous in time, and the stroke information is a set of coordinate attribute information corresponding to the coordinate points. In the stroke reproducing device 2, the processing means 26 refers to the time information included in the coordinate attribute information of the coordinate points constituting the handwritten strokes entered by the user with the electronic pen 1, in the order entered on the entry sheet 4. The stroke portion corresponding to the coordinate point (coordinate information) (hereinafter also referred to as “partial stroke”) is displayed in the stroke display area 501, thereby reproducing the handwriting stroke entry process of the electronic pen 1. At this time, the processing means 26 displays the stroke portion corresponding to the newly reproduced coordinate point (coordinate information) with the set line type (“red” color, thickness “24 pt”), and the change time “10 seconds” is displayed. When the time has elapsed, the partial stroke is changed and displayed with the default line type ("black" color, thickness "10 pt").

  At the time of FIG. 19A, the coordinate information of all coordinate points included in the stroke is associated with the latest coordinate information (hereinafter referred to as “latest coordinate information”) reproduced from the associated time information. Since the change time “10 seconds” has not elapsed until the set time information, it is displayed in the set line type. At the time of FIG. 19 (b), the change time has already passed from the time information to the time information of the latest coordinate information for the coordinate point of about one-fourth of the left side of the stroke. Has been displayed. On the other hand, the coordinate point of about 3/4 on the right side of the stroke for which the change time has not elapsed is displayed with the set line type. At the time of FIG. 19 (c), the change time “10 seconds” has already passed from the time information to the time information of the latest coordinate information at the left half of the coordinate point of the stroke. It is displayed with the line type changed. On the other hand, about one-half coordinate point on the right side of the stroke for which the change time has not elapsed is displayed with the set line type. At the time of FIG. 19 (d), the coordinate time of about 5/6 on the left side of the stroke has already changed time “10 seconds” from the time information to the time information of the latest coordinate information. It is displayed with the line type changed. On the other hand, the coordinate point of about 1/6 on the right side of the stroke for which the change time has not elapsed is displayed with the set line type.

[Stroke playback processing]
Next, the stroke reproduction process performed by the stroke reproduction system 12 according to the third embodiment is divided into a stroke display process flow, a stroke reproduction display process flow, and a stroke change display process flow, and will be described with reference to FIGS. .

[Stroke display processing flow]
FIG. 20 is a stroke display processing flow executed when the user-specific display button 503 is selected. When the viewer selects the display button 503 for each user, the processing unit 26 reads all coordinate information and time information associated with the selected pen ID from the storage unit 25 (step S321). Next, the processing unit 26 reads the default line type from the storage unit 25 (step S322), and all the corresponding line IDs corresponding to the pen ID selected in the stroke display area 501 with the default line type based on the coordinate information. Are displayed (step S323).

[Stroke playback display processing flow]
FIG. 21 is a stroke playback display processing flow executed by selecting the playback button 506. When the viewer selects the play button 506 after the stroke display process shown in FIG. 20 is executed, the processing means 26 erases all handwritten strokes displayed in the stroke display area 501 (step S421). In a state where the stroke display area 501 is returned to the blank page, the processing unit 26 reads the setting line type and change time set by the viewer on the display change condition setting screen 60 from the storage unit 25 (step S422). Subsequently, the processing unit 26 refers to the time information associated with each piece of coordinate information, and reproduces the latest coordinate information (latest information) of the handwritten stroke coordinate points (coordinate information) that are written earlier in time order. As the coordinate information, a partial stroke is drawn, and the partial stroke is displayed in the stroke display area 501 with the set line type (step S423). Then, the processing unit 26 stores the time information associated with the latest coordinate information in the storage unit 25 as the time information of the latest coordinate information (step S424). Subsequently, the processing means 26 determines whether or not there is coordinate information to be drawn next (step S425). If it is determined that there is next coordinate information (step S425: Yes), the processing unit 26 returns to step S422 to set The line type and change time are read from the storage means 25. Then, the processing means 26 draws a partial stroke in addition to the currently displayed stroke and displays it in the stroke display area 501 as the latest coordinate information for reproducing the next coordinate point that is earlier in time order (step S423). Then, the processing means 26 updates and stores the time information of the latest coordinate information stored in the storage means 25 as the time information of the latest coordinate information as the time information of the latest coordinate information (step S424). While determining that the next coordinate information is present in step S425 (step S425: Yes), the processing unit 26 repeats steps S422 to S425 and reproduces the writing process by drawing the strokes sequentially in the writing order. To do. If the processing means 26 determines in step S425 that there is no next coordinate information (step S425: No), the stroke reproduction display processing ends.

[Stroke change display processing flow]
FIG. 22 is a stroke change display processing flow executed for each coordinate point (coordinate information) displayed in the stroke display area 501 in step S423 of the stroke reproduction display processing flow shown in FIG. The processing means 26 executes a stroke change display process in parallel with the stroke reproduction display process. The stroke change display processing flow of FIG. 22 will be described with the coordinate information displayed in the stroke display area 501 in step S423 of FIG. 21 by the processing means 26 as “target coordinate information”. The processing unit 26 reads the time information of the latest coordinate information from the storage unit 25 (step S521), compares the time information of the target coordinate information with the time information of the latest coordinate information, and changes after the target coordinate information is displayed. It is determined whether time has passed (step S522). When it is determined that the change time has not elapsed (step S522: No), the processing unit 26 reads the set line type and the change time from the storage unit 25 (step S523), and targets the stroke display area 501 with the set line type. The partial stroke of the coordinate information is displayed (step S524), and the process returns to step S521. The processing means 26 repeats steps S521 to S524 until it is determined in step S522 that the change time has elapsed. If it is determined that the change time has elapsed (step S522: Yes), the processing unit 26 reads the initial line type from the storage unit 25 (step S525), and the partial stroke of the target coordinate information is the initial line type. Change and display (step S526).

  As in the second embodiment, all the strokes displayed in the stroke display area 501 are displayed without being deleted, and the partial strokes of the coordinate information to be newly reproduced are changed in the set line type in the order of entry. The strokes may be reproduced and displayed by displaying them.

(Display form 7)
Next, the stroke reproduction process in the display mode 7 shown in FIG. 19 will be described with reference to FIGS. FIGS. 19A to 19D show the stroke reproduction processing flow shown in FIG. 21 for the coordinate points (coordinate information) constituting one stroke written on the entry sheet 4 with the electronic pen 1. The stroke reproduction processing states at four time points in time series are shown. At the time of display in FIG. 19A, the coordinate information of all coordinate points included in the stroke has passed the change time “10 seconds” from the time information associated with each time point to the time information associated with the latest coordinate information. However, the stroke is displayed with the set line type (see step S524). At the time of display in FIG. 19B, the change time has passed for each coordinate point included in the range corresponding to about one-fourth of the left side of the stroke (see step S522), and the line type that has already been initially set. Is changed and displayed (see step S526). On the other hand, for the coordinate points included in the range corresponding to about three-quarters of the right side of the stroke, the change time has not elapsed (see step S522), and the stroke is displayed with the set line type (step S524). reference). At the time of display in FIG. 19 (c), the change time has passed for each of the coordinate points included in the range corresponding to about one-half of the left side of the stroke (see step S522). Is changed and displayed (see step S526). On the other hand, for the coordinate points included in the range corresponding to about one half of the right side of the stroke, the change time has not elapsed (see step S522), and the stroke is displayed with the set line type (step S524). reference). At the time of display in FIG. 19D, the change time has passed for the coordinate points included in the range corresponding to about 5/6 on the left side of the stroke (see step S522), and the line type has already been set to the initial setting. Changed and displayed (see step S526). On the other hand, for the coordinate points included in the range corresponding to about one sixth of the right side of the stroke, the change time has not elapsed (see step S522), and the stroke is displayed with the set line type (step S524). reference).

[Operational effects of the stroke reproduction system of the third embodiment]
According to the stroke reproduction system 12 of the third embodiment, the viewer reproduces the entry contents entered on the entry sheet 4 by the user with the electronic pen 1 on the screen of the display means 24 of the stroke reproduction apparatus 2 as a handwritten stroke. It can be displayed and the user entry process can be reproduced. Of the coordinate points (coordinate information) that make up the stroke, the newly replayed coordinate points are displayed in the set line type and the newly replayed coordinate points are emphasized, so that frequently filled positions are displayed. Even if the entry information changes or the entry information is checked while operating the PC device, the viewer can grasp at a glance the latest entry place in the entry process without any special operation. . The setting line type for emphasizing a new coordinate point can be set by the viewer on the display change condition setting screen 60. For example, even if the setting is changed during playback, the changed setting line type is stroke-reproduced. Can be reflected. Furthermore, by performing the stroke reproduction processing in units of coordinate points constituting the stroke, the change in which the stroke is changed from the set line type to the default line type is displayed more smoothly on the screen.

<Fourth embodiment>
Next, a fourth embodiment will be described. Parts similar to those in the fourth embodiment and the first to third embodiments are denoted by the same reference numerals, and description thereof will be omitted as appropriate. The fourth embodiment and other embodiments have different display change conditions. Specifically, in the first to third embodiments, the display is changed for the stroke or the coordinate point for which the set change time has elapsed, but in the fourth embodiment, the stroke exceeding the set change stroke number. Stroke playback processing is performed for. The storage unit 25 of the stroke display device 2 of the fourth embodiment stores the latest stroke number for each pen ID of the electronic pen 1.

  FIG. 23 shows an example of the display change condition setting screen 61 in the fourth embodiment. The display change condition setting screen 61 includes a reproduction stroke color setting list 611, a reproduction stroke size setting list 612, a change stroke number setting list 613, a confirmation button 614, and a cancel button 615. Next, the function of each component of the display change condition setting screen 61 will be described. The reproduction stroke color setting list 611 is a pull-down menu method, and sets the reproduction stroke color before the display is changed. The reproduction stroke size setting list 612 has a pull-down menu method, and sets a reproduction stroke size (pt) before the display is changed. The change stroke number setting list 613 has a pull-down menu method, and sets the change stroke number as a condition for changing the display. The confirm button 614 confirms the setting content of the display change condition setting screen 61 and stores it in the storage unit 25, and closes the display change condition setting screen 61. A cancel button 615 cancels the setting contents of the display change condition setting screen 61 and closes the display change condition setting screen 61.

(Display mode 8)
FIG. 24 shows a display form at a certain time of the playback application 5 in the case where the setting line type and the change stroke number are set in the fourth embodiment. When the viewer selects the option display button 504, the processing unit 26 displays the display change condition setting screen 61 in a pop-up manner. The viewer can perform settings related to the stroke change display (set line type and number of changed strokes) on the display change condition setting screen 61. Specifically, the setting line type is set to “red” color, thickness “24 pt”, and the change stroke number “10” (see FIG. 23). The setting line type and the number of changed strokes may be set during handwritten stroke reproduction display. As shown in FIG. 24, in a state where the viewer selects the display button 503A for each user, the display change condition setting screen 61 is used to make settings related to the stroke change display, and the confirmation button 614 is selected to select the display change condition setting screen 61. When the reproduction button 506 is selected after the button is closed, the processing means 26 starts the reproduction process of the stroke with the pen ID “pen01”, and corresponds to the stroke information to be displayed by the set line type in the stroke display area 501A. Strokes that are reproduced and displayed with the set line type ("red" color, thickness "24 pt"), and the number of strokes displayed in the stroke display area 501A after the strokes are displayed exceed the changed stroke number "10" Are changed and displayed in the default line type ("black" color, thickness "10 pt"). That is, the processing means 26 displays the stroke corresponding to the changed number of strokes from the newer one (the larger stroke number) (in this example, 10 strokes from the latest stroke) with the set line type, and the older (stroke) Displays the stroke with the smaller number) in the default line type.

[Stroke acquisition process flow]
A stroke acquisition process flow (stroke storage process flow) by the stroke reproduction system 13 of the fourth embodiment will be described with reference to FIG.
FIG. 25 is a stroke acquisition process flow executed for each entry information. When the user enters characters or the like on the entry form 4 with the electronic pen 1, the electronic pen 1 transmits the entry information associated with the pen-down information PD and the pen ID to the stroke display device 2 at the time of the pen-down. During the pen-up information PU, the pen-up information PU is transmitted to the stroke display device 2 in which the coordinate attribute information including the coordinate information calculated by imaging the dot pattern along the stroke and the pen ID is associated. The entry information associated with the pen ID is transmitted to the stroke display device 2 (step S111).

  In the stroke display device 2, when the receiving means 22 receives the entry information transmitted from the electronic pen 1, the processing means 26 stores the entry information in the storage means 25 (step S211). Next, the processing means 26 determines whether or not the pen-down information PD is included in the entry information (step S212). When it is determined that the pen-down information PD is included (step S212: Yes), the processing unit 26 causes the storage unit 25 to set a storage area for new stroke information (step S213). On the other hand, when it is determined that the pen-down information PD is not included (step S212: No), the processing unit 26 determines whether the entry information includes the pen-up information PU (step S214). When it is determined that the pen-up information PU is not included (step S214: No), the processing unit 26 uses the coordinate attribute information included in the entry information as stroke information, and the storage area set in step S213 for the storage unit 25 (Step S215). If there is the latest stroke information already stored at this time, the storage means 25 adds the coordinate attribute information as a part of the stroke information and stores it. On the other hand, when the pen-up information PU is identified in step S214 (step S214: Yes), the processing unit 26 stores the latest stroke number stored for each pen ID in the storage unit 25 (the stroke number assigned to the latest stroke). ) Is read (step S216), increment is performed to add 1 to the read latest stroke number, and the calculation result is updated and stored as the latest stroke number in the storage means 25 (step S217). Then, the latest stroke number updated in step S217 is assigned as the stroke number to the stroke information stored in the storage unit 25 in step S705, and the storage unit 25 stores it (step S218).

[Stroke playback processing]
Stroke reproduction processing by the stroke reproduction system 13 of the fourth embodiment will be described with reference to FIGS. 26 to 28, divided into a stroke display processing flow, a stroke reproduction display processing flow, and a stroke change display processing flow.

[Stroke display processing flow]
FIG. 26 is a stroke display processing flow executed when the user-specific display button 503 is selected. When the viewer selects the display button 503 for each user, the processing unit 26 reads all stroke information and stroke numbers associated with the selected pen ID from the storage unit 25 (step S331). Next, the processing means 26 reads the default line type (“black” color, thickness “10 pt”) from the storage means 25 (step S332), and displays the stroke with the default line type based on the stroke information. All handwritten strokes corresponding to the selected pen ID are displayed in the area 501 (step S333).

[Stroke playback display processing flow]
FIG. 27 is a stroke playback display processing flow executed by selecting the playback button 506. When the viewer selects the play button 506 after the stroke display process shown in FIG. 26 is executed, the processing means 26 deletes all handwritten strokes displayed in the stroke display area 501 (step S431). In a state where the stroke display area 501 is returned to the blank page, the processing unit 26 sets the set line type (“red” color, thickness “24 pt”) set by the viewer on the display change condition setting screen 61 and the number of changed strokes “10”. Is read from the storage means 25 (step S432). Subsequently, the processing means 26 refers to the stroke number given to each stroke information, and reproduces the latest stroke information (stroke information with a small stroke number) corresponding to the handwritten strokes entered earlier in time order. Drawing is performed as stroke information (hereinafter referred to as “latest stroke information”) and displayed in the stroke display area 501 with the set line type (step S433). Then, the processing means 26 stores the stroke number assigned to the latest stroke (hereinafter referred to as “latest stroke number”) in the storage means 25 as the stroke number of the latest stroke (step S434). Subsequently, the processing means 26 determines whether or not there is stroke information to be drawn next (step S435). If it is determined that there is a next stroke (step S435: Yes), the processing means 26 returns to step S432 and sets the setting line. The seed and the change stroke number are read from the storage means 25. Then, the processing means 26 draws the next stroke information having a smaller stroke number as the latest stroke information to be reproduced and displays it in the stroke display area 501 (step S433). Then, the processing means 26 updates and stores the latest stroke number stored in the storage means 25 using the stroke number given to the latest stroke information as the latest stroke number (step S434). While determining that the next stroke is present in step S405 (step S435: Yes), the processing unit 26 repeats steps S432 to S435 and reproduces the entry process by drawing the strokes in the order of entry. . If the processing means 26 determines in step S435 that there is no next stroke (step S435: No), it ends the stroke reproduction display processing.

[Stroke change display processing flow]
FIG. 28 is a stroke change display processing flow executed for each stroke (stroke information) displayed in the stroke display area 501 in step S433 of the stroke reproduction display processing flow shown in FIG. The processing means 26 executes a stroke change display process in parallel with the stroke reproduction process. The stroke change display processing flow of FIG. 16 will be described by assuming that the stroke displayed in the stroke display area 501 in step S433 of FIG. The processing means 26 reads the latest stroke number from the storage means 25 (step S531), and determines whether or not the stroke number of the target stroke is smaller than the latest stroke number (the older one) within the change stroke number “10”. Determination is made (step S532). In other words, the processing unit 26 determines whether or not the stroke number is between “latest stroke number−number of changed strokes” and “latest stroke number”. Then, when the processing means 26 determines that the stroke number of the target stroke is within the change stroke number “10” which is smaller from the latest stroke number (step S532: Yes), the setting line type and the change stroke number are stored. Read from the means 25 (step S533), display the target stroke in the stroke display area 501 with the set line type (step S534), and return to step S531. The processing means 26 repeats steps S531 to S534 until it is determined in step S532 that the number of strokes to be changed is not within "10". On the other hand, if the processing unit 26 determines that the stroke number of the target stroke is not within the change stroke number “10” which is smaller from the latest stroke number (step S532: No), the initial line type is stored from the storage unit 25. Reading (step S535), the target stroke is changed and displayed with the default line type (step S536).

  The latest stroke number is updated by the processing unit 26 every time the receiving unit (acquiring unit) 22 receives stroke information of a new stroke from the electronic pen 1 for each pen ID during the stroke acquiring process. And stored in the storage means 25. In other words, in the stroke acquisition process, the latest stroke number is always the stroke number assigned to the most recently received stroke by the stroke reproducing device 2. When the stroke reproduction process is performed, the processing unit 26 updates the stroke information for each pen ID every time the processing unit 26 reproduces the stroke information from the storage unit 25 in ascending order of the stroke number and displays the stroke information on the screen of the display unit 24. And stored in the storage means 25. That is, in the stroke reproduction process, the latest stroke number is always the stroke number assigned to the stroke reproduced most recently by the stroke reproduction device 2.

  As in the second embodiment, all the strokes displayed in the stroke display area 501 are displayed without being erased, and the strokes to be newly reproduced are displayed in the order in which they are entered and changed and displayed. The stroke may be reproduced and displayed.

  As an example, it is assumed that the stroke reproducing device 2 is in a state of reproducing the stroke information (the stroke with the assigned stroke number “18”) for the 18th stroke. In this case, the processing means 26 stores the latest stroke number as “18” in the storage means 25. Since the stroke reproduction display process shown in FIG. 27 is executed for each stroke information, in this state, the stroke information of the stroke number “18” is targeted from the stroke reproduction process targeted for the stroke information of the stroke number “1”. A total of 18 stroke reproduction processes are simultaneously executed in parallel until the stroke reproduction process is performed. In this case, strokes with a change stroke number “10” or less from the latest stroke number, that is, strokes with stroke numbers “9” to “18” are displayed with the set line type, and a stroke number “1” smaller than that is displayed. The stroke of “8” is displayed with the default line type. For example, in the stroke reproduction process for the stroke with the stroke number “15”, the target stroke number “15” is within the change stroke number “10” from the latest stroke number “18” to the smaller one in step S532. In step S532, the determination result is Yes, and the target stroke is displayed in the set line type. On the other hand, in the stroke reproduction process for the stroke with the stroke number “3”, if the target stroke number “3” is smaller than the latest stroke number “18” within the change stroke number “10” in step S532. Therefore, the determination result in step S532 is No, and the target stroke is displayed with the default line type.

[Operational effects of the stroke reproduction system of the fourth embodiment]
According to this stroke reproduction system 13, the viewer can reproduce and display the entry contents entered by the user on the entry sheet 4 with the electronic pen 1 as a handwritten stroke, and can reproduce the user entry process. . When replaying and displaying, the newly replayed stroke is displayed in the “red” color that is the set line type and the thickness “24 pt”, and the stroke that exceeds the number of changed strokes is the “black” color that is the default line type, Even when the entry position is changed frequently or the entry information is checked while operating the PC device, etc., by displaying the thickness “10 pt” and highlighting the newly regenerated stroke, The viewer can grasp at a glance the latest entry position in the entry process without performing any special operation. The setting line type for emphasizing a new stroke can be set by the viewer on the display change condition setting screen 61. For example, even if the setting is changed during playback, the changed setting line type is used for stroke playback. It is possible to reflect. In addition, by setting the change condition as the number of strokes instead of the time, when the user enters a stroke on the entry form 4, even if the entry is interrupted and the entry is resumed after a gap, the latest stroke number Since the strokes within the number of strokes changed are displayed in the set line type, the latest entry location can always be grasped at a glance.

<Modification>
In the above first to fourth embodiments, all strokes are displayed in advance with the default line type, and when the playback instruction is detected and the playback process is started, the reproduced stroke is displayed and displayed with the set line type. When the stroke satisfies the change condition, the stroke is changed and displayed with the default line type, but the application of the present invention is not limited to this. The line type for displaying all strokes in advance and the line type for changing display from the set line type may be any line type other than the set line type, and may be set separately. In addition, the line type for displaying all strokes in advance and the line type for displaying a change from the set line type are not necessarily the same.
In the first, third, and fourth embodiments described above, all the strokes are displayed in advance, and when reproduction is instructed, the reproduction process is started after all the displayed strokes are erased. The application of the present invention is not limited to this. The stroke may be reproduced when reproduction is instructed without displaying all the strokes in advance.

  In the above first to fourth embodiments, the current time transmitted by the real-time clock 110 of the electronic pen 1 is transmitted to the stroke display device 2 in association with the coordinate information. Not limited. The stroke reproduction device 2 has a clock that transmits time information indicating the current time and supplies the clock to the processing means 26, so that the stroke reproduction device 2 uses the current clock supply to the coordinate attribute information received by the reception means 22. The time may be associated as time information (time stamp) at the time of reception. In this case, the electronic pen 1 does not have to have the real time clock 110. In this case, the representative time of the stroke information is set based on the time information at the time of reception associated with the coordinate attribute information. The coordinate attribute information does not necessarily include writing pressure data.

  Moreover, in said 1st-4th embodiment, although the electronic pen 1 was supposed to transmit the produced | generated entry information to the stroke reproduction | regeneration apparatus 2 sequentially, application of this invention is not restricted to this. The electronic pen 1 stores, as one entry information, all the coordinate characteristic information of one stroke information generated from the pen down to the pen up as entry information corresponding to all the strokes generated by filling in the entry sheet 4. 109, and all the entry information stored in the memory 109 may be transmitted to the stroke reproduction device 2 in response to a transmission instruction to the stroke reproduction device 2. In this case, the transmission by the communication unit 111 may be wired. In this case, the stroke reproducing apparatus 2 stores the entry information in steps S201 and S211 of the stroke acquisition process flow, and then omits steps S202 to S205 and S212 to S215, and executes steps S206 and S216 to S218. .

  Moreover, in said 4th Embodiment, although the stroke reproducing apparatus 2 was supposed to provide a stroke number to stroke information by step S216-S218 of a stroke acquisition process flow, application of this invention is not restricted to this. . Similar to the stroke acquisition process of the first to third embodiments, the stroke reproducing device 2 sets the representative time in the stroke information and stores it in the storage unit 25, and in step S433 of the stroke reproduction display process flow, By referring to the representative time of the stroke information, the stroke is reproduced and displayed with the latest stroke information in the time order as the latest stroke information, and the stroke number is assigned to the latest stroke information in the same manner as in steps S216 to S218 instead of step S434. At the same time, the latest stroke number may be stored in the storage means 25. In this case, the stroke display process is the same as the stroke display process of the first and second embodiments.

  In the above embodiment, the line type setting by the line type setting unit and the setting of the display change condition by the display change condition setting unit are summarized on the display change condition setting screens 60 and 61 (refer to FIGS. 8 and 23). However, the application of the present invention is not limited to this. For example, a line type setting screen having the same functions as the reproduction stroke color setting lists 601 and 611, the reproduction stroke size setting lists 602 and 612, the confirm buttons 604 and 614, and the cancel buttons 605 and 615, and a change time setting list 603 , 613, the confirmation buttons 604 and 614, and the cancel setting buttons 605 and 615, the display change condition setting screen having the same function, the line type setting by the line type setting means and the display by the display change condition setting means. The change condition may be set separately. The reproduction stroke color setting lists 601 and 611, the reproduction stroke size setting lists 602 and 612, and the change time setting lists 603 and 613 are not limited to the pull-down menu method, and the viewer may be able to input arbitrary numerical values. .

DESCRIPTION OF SYMBOLS 1A, 1B (1) ... Electronic pen 2 ... Stroke reproduction apparatus 3 ... Projector 4A, 4B (4) ... Filling sheet 5 ... Reproduction application (reproduction application)
501A, 501B (501) ... Stroke display area 502 ... User display list 503A, 503B (503) ... User-specific display button 504 ... Option display button 506 ... Play button 507 ... Stop button 10, 11, 12, 13 ... Stroke display system 60, 61 ... Display change condition setting screen 601, 611 ... Reproduction stroke color setting list 602, 612 ... Reproduction stroke size setting list 603 ... Change time setting list 613 ... Change stroke number setting list 21 ... Input means 22 ... Receiving means 23 ... Transmission means 24 ... display means 25 ... storage means 26 ... processing means

Claims (6)

An acquisition means for acquiring entry information relating to a handwritten stroke written by an electronic pen;
Serial based on the input information, a first processing means for displaying reproduced sequentially on the display means which is entered handwriting strokes,
A line type setting means for setting a line type of a handwritten stroke;
A display change condition setting means for setting a change time as a display change condition for changing the line type of the displayed handwritten stroke,
The first processing means displays the handwritten stroke on the display means by the set line type set by the line type setting means, and is set by the display change condition setting means for each coordinate information included in the handwritten stroke . When the change time elapses, the stroke reproduction device displays the change by a line type different from the set line type in the coordinate unit of the handwritten stroke. Before the first processing means, based on the coordinate information for each coordinate point constituting the handwritten strokes, said changing time from the time information each coordinate point having up time information latest coordinate point has elapses Until the display means displays the set line type, and when the change time elapses from the time information possessed by each coordinate point to the time information possessed by the latest coordinate point, the coordinate line is referred to as the set line type. 2. The stroke reproducing apparatus according to claim 1, wherein the stroke reproducing apparatus displays the image by changing the line type depending on different line types. Second processing means for displaying all handwritten strokes on the display means based on the entry information;
Reproduction instruction means for instructing the first processing means to reproduce a handwritten stroke,
The second processing means displays in advance all handwritten strokes on the display means,
When reproduction is instructed by the reproduction instruction unit, the first processing unit erases all the handwritten strokes displayed by the second processing unit and displays the handwritten strokes on the display unit using the set line type. 3. The stroke reproducing apparatus according to claim 1, wherein, when the display change condition is satisfied, the display is changed and displayed by a line type different from the set line type for each coordinate point of the handwritten stroke. Second processing means for displaying all handwritten strokes on the display means based on the entry information;
Reproduction instruction means for instructing the first processing means to reproduce a handwritten stroke,
The second processing means displays all handwritten strokes on the display means in advance by a line type different from the set line type set by the line type setting means,
When the reproduction is instructed by the reproduction instruction unit, the first processing unit changes the handwritten stroke displayed by the second processing unit to the display unit according to the set line type, and displays the display change condition. 3. The stroke reproduction device according to claim 1, wherein when satisfied, the stroke reproduction device further changes and displays a line type different from the set line type for each coordinate point of the handwritten stroke. The display change condition setting means can set a line color or a line thickness as a line type different from the set line type,
Wherein the first processing means, the handwriting stroke of the plurality of users is divided regions, stroke reproducing apparatus according to claim 1 or 2, characterized in that play. A program that causes a computer to function as the stroke reproducing device according to any one of claims 1 to 5 .

Images