JP4369715B2 - Erasing method of position information acquired by electronic pen, erasing program thereof, and terminal device of electronic pen - Google Patents

Description

  The present invention relates to a method of converting information input by handwriting into electronic data, and more particularly to a method of deleting and correcting information input by handwriting and information on paper with consistency.

  Examples of a method for digitizing information input by handwriting on paper or the like include an input method using a scanner, an OCR (Optical Character Reader), an electronic pen, or the like. Among these, the input method using an electronic pen is an input method having a form that is very familiar to the user by using an electronic pen incorporating an electronic device in the form of a conventional writing instrument.

The method of acquiring entry information using this electronic pen is roughly classified into two types. One is a method of measuring the distance between the position search device and the electronic pen and digitizing the trajectory, and the other is the electronic method of position code written on special paper as disclosed in Patent Document 1. This is a method of reading with the pen itself and digitizing the trajectory. Here, in such an input method using an electronic pen, the entry information is transmitted as it is as a trajectory (stroke data) to, for example, the server device, and is converted into position information and stored. Here, in order to erase a part of the stored position information, a method of erasing the position information on the server device by some means has been taken.
Japanese translation of PCT publication No. 2003-500777 (paragraphs 0009 to 0014, FIG. 8)

  As an advantage of the input method using an electronic pen, since the information (entry information) written on paper actually remains, even if there is no electronic display means such as a display, this input information is visually It can be confirmed. However, if this entry information is digitized, converted into position information and stored in a server device, etc., and then a part of this position information is to be deleted, conventionally only the position information on the server device is deleted by some means. However, there is a problem that inconsistency between the entry information and the position information occurs. In addition, there is a method of erasing the position information on the server device by entering information indicating further correction on paper or the like on which the entry information is entered with an electronic pen. There was a problem that the surface became dirty. In addition, when such erasure is required, it is often accompanied by correction of the entered contents, that is, rewriting, and in this case, it is difficult to cope with these methods.

Accordingly, an object of the present invention is to provide consistency between the written information and the position information when the written information is erased or corrected in the method of inputting the written information written on paper or the like as the position information from the electronic pen. It is an object of the present invention to provide a position information erasing method, an erasing program thereof, and an electronic pen terminal device that can be re-written in an area where the erasing information is erased .

  The position information canceling method according to the present invention made to achieve the above-described problem is an input method using an electronic pen, in which the position information stored in the terminal device is erased in conformity with the corresponding entry information. Information input using an electronic pen on an information erasing paper having a predetermined shape associated with an area for erasing position information in a theoretical space, affixed to the entry information to be erased The step of acquiring entry information for specifying the position of the erasing paper as position information in the terminal device, the step of acquiring the shape information of the information erasing paper from the storage means of the terminal device, and the shape information and the position information. The step of calculating the pasting position of the information erasing paper in the theoretical space and erasing or moving the position information of the paper in the area overlapping the pasting position to the history file is used. It is characterized in Mukoto.

According to this position information canceling method, the position information and the entry information can be erased with consistency by using the information erasing paper.
It is also possible to obtain the information entered on the information erasing paper using the electronic pen as position information corresponding to the position where the information is pasted on the paper. It becomes possible to input new entry information on the completed entry information, and the entry information can be corrected.

  Further, the information erasing paper can be processed into a tape shape having a predetermined width and cut into an arbitrary length for use. Thereby, what corresponds to the correction tape in the theoretical space can be realized.

  In addition, the position information cancellation program according to the present invention, which has been made to solve the above problems, acquires, as stroke data using an electronic pen, entry information that has been handwritten on a form that can be specified. In this position information canceling method, the position information in the theoretical space converted from the stroke data and stored in the terminal device is erased by pasting it to the entry information for erasing the information erasing paper having a predetermined shape. A storage function for storing information relating the shape information of paper and information erasing paper and the coordinates of theoretical space to the apparatus, and position information; a position information registration function for registering position information in this storage function; and an electronic pen Stroke data processor that converts the stroke data acquired in step 1 into position information in the theoretical space and delivers it to the position information registration function If the position information is recognized to exist in the area of the information erasing paper in the theoretical space, the erasing acceptance function for obtaining the shape information of the information erasing paper from the storage function, and the position existing in the shape information and the information erasing paper Using the information, the erase position detection function that calculates the paste position of the information erase paper in the theoretical space, and the position information and information existing on the paper in the paste position area using the paste position of the information erase paper This is a position information cancellation program for replacing the position information existing on the erasing paper and realizing the entry information erasing function to be transferred to the position information registration function.

  With this program, the terminal device can execute the position information canceling method described above.

  According to the present invention, in a method of inputting entry information to be written on paper or the like as position information from an electronic pen, a method for simultaneously and consistently erasing information on a paper surface and electronic information, which has been difficult in the past. Can be realized easily. Further, it is possible to re-enter the erased position, and the electronic information can be easily erased and corrected in accordance with the erase and correction on the paper. Furthermore, by using the dot pattern corresponding to the cancellation area in common in a plurality of systems, the paper on which this dot pattern is printed can be used as a common cancellation paper in a plurality of systems. It is possible to realize a correction tape or sticky note that can handle both.

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

(Information cancellation system)
FIG. 1 is a diagram showing a configuration example of a system to which a position information cancellation method according to the present invention is applied (hereinafter referred to as an information cancellation system). Referring to FIG. 1, the information cancellation system includes an electronic pen 1 that acquires entry information written on a sheet 2 as stroke data, a sheet 2 on which a special dot pattern whose position can be specified is printed, and stroke data. The pen server 4 is configured to hold the position information obtained by converting the position information and erase the position information. Furthermore, in the present embodiment, an information erasing tape processed into a tape shape is used to erase and correct entry information and position information obtained by digitizing the entry information with consistency. Next, these components will be described.

(Electronic pen)
FIG. 2 is a diagram illustrating a configuration example of the electronic pen 1 used in the present embodiment. As shown in FIG. 2, the electronic pen 1 includes a pen 10 that is a writing means for entering necessary items on a sheet 2 on which a special dot pattern whose position can be specified is recorded, and a dot pattern printed on the sheet 2. , A piezoelectric element 12 for detecting writing pressure acting on the pen 10 at the time of writing, and data from the camera 11 and the piezoelectric element 12 are processed to associate the position of the pen tip moved by writing with the dot pattern A processing device 13 for creating stroke data as information, a memory 14 for storing the created stroke data, and a transmission device 16 for transmitting the stroke data and the like to other devices. Furthermore, it has a display screen 15 for displaying the input status and input error, and a vibration motor 17 for transmitting the input error to the user by vibration. An example of the transmission device 16 is a device that transmits and receives data using radio waves in a predetermined frequency band according to the communication protocol of Bluetooth (R), which is a kind of the short-range wireless transmission technology described above. It may be a device that transmits and receives data according to a communication protocol of a wireless technology, a wireless LAN (Local Area Network), or a wired communication technology. The processing device 13 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), an electric / electronic circuit, and the like, and comprehensively controls the electronic pen 1. Specifically, creation and accumulation of stroke data, transmission of stroke data, analysis of information specifying the paper type, control of the display screen 15 and the vibration motor 17 and the like can be mentioned.

(Paper)
A sheet 2 filled with the electronic pen 1 forms a theoretical space having a two-dimensional plane spread. Similar to the document described in Patent Document 1 described above, a special dot pattern that can specify the position corresponding to the coordinates in the theoretical space is printed on the paper 2, thereby functioning as electronic processing paper. And includes a unique dot pattern arrangement that can identify the sheet 2. In this dot pattern, dots are arranged so that the position can be specified when the paper surface is divided into grids of a predetermined size, and the position on the paper 2 can be specified from the dot pattern. The locus 3 entered by the user of the information cancellation system of the present embodiment on the paper 2 using the electronic pen 1 is converted into stroke data and stored in the memory 14 of the electronic pen 1.

(Information erasing tape / information erasing paper)
Next, FIG. 3 is a drawing for explaining an example in which the information erasing tape of the present embodiment is housed in a holder and used. On the surface of the information erasing tape 33, a dot pattern corresponding to the coordinates in the theoretical space is printed. This dot pattern has a unique dot pattern arrangement that can identify the information erasing tape 33. The information erasing tape 33 is formed as an elongated ribbon-like tape having a predetermined width and coated with an adhesive substance on the back surface. The information erasing tape 33 is wound around a cylindrical core and can be unwound and rotated freely. Is held in. Here, the area of the theoretical space where the information erasing tape 33 is arranged is set in an area defined as an area for erasing and correcting the position information stored in the pen server 4 shown in FIG. ing.

  In the present embodiment, the information erasure tape 33 is cut to an arbitrary length and pasted at a position where the position information is to be erased, thereby realizing the erasure of the position information. For this reason, the information erasing tape 33 is used after being cut into an arbitrary length by the cutter 32 provided in the holder 34. The information erasing tape 33 having an arbitrary length cut by the cutter 32 is referred to as an information erasing paper, and FIG. 4 shows an example of the information erasing paper cut to an arbitrary length. Yes. As shown in FIG. 4, the information erasing paper 40 has a predetermined width w1 and an arbitrary length h1. The position information canceling method using the information erasing paper 40 will be described in detail in an embodiment described later.

(Pen server)
Referring to FIG. 1 again, the pen server 4 mainly includes a storage 20, a CPU (Central Processing Unit) 21, a RAM (Random Access Memory) 22, and a pen receiver 23, and is typically realized by a personal computer. The The storage 20 is realized by a hard disk drive, for example, and stores programs for realizing each function of the pen server 4 and various data. The pen server 4 can implement the position information canceling method of the present embodiment by developing the program stored in the storage 20 in the RAM 22 and executing it by the CPU 21. The pen receiver 23 is a device that receives stroke data transmitted from the transmission device 16 of the electronic pen 1 shown in FIG.

  Next, a program stored in the storage 20 of the pen server 4 and a database constructed in the storage 20 will be described.

  First, the stroke data processing program 24 converts the stroke data sent from the electronic pen 1 into position information by using correspondence information for each paper type, which will be described later, stored in advance in the correspondence information management database 29, and converts the position data into position information. A function of passing to the registration program 28 is realized. Then, the erasure acceptance program 25 is activated by information indicating that the user of the information cancellation system wants to erase the position information input using the electronic pen, and from the shape management database 30 the pre-registered sheet 2 and information A function of acquiring the shape information of the erasing tape 33 and transferring the shape information to the erasing position detection program 26 described later is realized. Information indicating that this position information is to be deleted will be described in an embodiment described later.

  Then, the erasure position detection program 26 uses the shape information of the information erasure tape 33 delivered from the erasure acceptance program 25, and the information erasure paper 40 cut out from the information erasure tape 33 in the theoretical space A function for calculating which part of the sheet 2 is pasted is realized. Further, the position information erasure program 27 replaces the area where the information erasure paper 40 is pasted on the paper 2 calculated by the erasure position detection program 26 with the area of the information erasure paper 40 and includes it in the replaced area. A function for delivering the location information to the location information registration program 28 is realized. The position information registration program 28 realizes a function of registering the position information transferred from the stroke data processing program 24 and the position information erasing program 27 in the position information management database 31.

  The correspondence information management database 29 stores correspondence information that associates dot patterns printed on the surface of the paper 2 and the information erasing tape 33 with coordinates in a theoretical space. The shape management database 30 stores the shape information of the information erasing tape 33 shown in FIG. 3 and the shape information of the paper 2. The position information management database 31 stores position information converted from the entry information of the locus 3 entered on the paper 2 by the position information registration program 28. The operation of the pen server 4 by these programs will be described in detail in an embodiment described later.

(First embodiment)
Next, referring to FIG. 1, FIG. 3 and FIG. 4, the position information stored in the position information management database 31 of the pen server 4 is entered on the actual form 2 using the information cancellation system described above. A description will be given of a first embodiment of the present invention that is erased and corrected with consistency with the entry information of the locus 3. In the present embodiment example, it is assumed that the position information of the locus 3 previously written on the paper 2 is stored in the position information management database 31 of the pen server 4 as a premise for deleting the position information of the locus 3. In the theoretical space, an information erasing area is allocated to the information erasing tape 33. Correspondence information indicating the correspondence between the paper 2 and the information erasing tape 33 and the coordinates of the theoretical space is stored in advance in the pen server 4. It is stored in the correspondence information management database 29.

  In this embodiment, as described above, the locus 3 is previously written on the paper 2 using the electronic pen 1. FIG. 5 is a diagram for explaining the theoretical space recognized by the pen server 4 at this time. In the theoretical space 41 formed by the dot pattern illustrated in FIG. 5, the sheet 2 and the information erasing tape 33 are arranged in different areas, and the position information of the locus 3 is mapped on the area of the sheet 2. The theoretical space 41 shown in FIG. 5 includes correspondence information that correlates each area stored in the correspondence information management database 29 with the coordinates of the theoretical space, and the sheet 2 stored in the shape management database 30. Mapping is performed based on the shape information of the information erasing tape 33, and the position information of the locus 3 stored in the position information management database 31 is mapped onto the area of the sheet 2. In this theoretical space 41, an area other than the area of the paper 2 and the information erasing tape 33 can be secured if necessary. For example, an area corresponding to an information erasing paper having a shape different from that of the information erasing paper 40 of this embodiment can be arranged in a part of the theoretical space 41.

  The process of deleting and correcting the position information under the above-described conditions will be specifically described with reference to FIG. 6 illustrating the process of the pen server 4. First, the user of the information cancellation system hides the trajectory 3 from the information erasing tape 33 held in the holder 34 shown in FIG. 3 in order to erase the trajectory 3 entered on the sheet 2 and its position information. An information erasing paper 40 having an arbitrary length is cut out, and the information erasing paper 40 is pasted on the locus 3 to be erased as illustrated in FIG. Then, the user of the information cancellation system uses the electronic pen 1 to enter the first mark 42 and the second mark 43 so as to straddle the lengthwise ends of the paper 2 and the information erasing paper 40. The stroke data of the first mark 42 and the second mark 43 is transmitted from the electronic pen 1 to the pen receiver 23 of the pen server 4. These stroke data specify the type of paper (whether written on the paper 2 or the information erasing tape 33 including the information erasing paper 40) determined from the dot pattern. Information is also added.

  First, the pen server 4 acquires the stroke data of the first mark and the second mark (step S100). Here, the stroke data of the first mark 42 and the second mark 43 received by the pen receiver 23 of the pen server 4 is temporarily stored in the RAM 22. Then, the stroke data processing program 24 of the pen server 4 is activated, and the stroke data of the first mark 42 and the second mark 43 is used using the correspondence information of the paper 2 and the information erasing tape 33 stored in the correspondence information management database 29. Is converted into position information (step S101).

  If it is determined that the position information of the first mark 42 and the second mark 43 has been mapped across the space for information cancellation including the information erasing tape 33 (Yes in step S102), the pen server 4 determines the information cancellation system. , The user decides that the position information is to be erased, and activates the erasure acceptance program 25. Then, the erasing acceptance program 25 acquires the shape information of the paper 2 and the information erasing tape 33 from the shape management database 30 (step S103).

  Thereby, the pen server 4 can recognize the arrangement of the paper 2, the information erasing tape 33, the first mark 42, and the second mark 43 as in the theoretical space 41 illustrated in FIG. 8. Then, the erasure position detection program 26 of the pen server 4 recognizes the position information of the first mark 42 and the second mark 43 written across the paper 2 and the information erasure paper 40, and is input to the paper 2. A point 42a (first mark) is defined as a point that changes from the position information to the position information input to the information erasing paper 40 or a point that changes from the position information input to the information erasing paper 40 to the position information input to the paper 2. 42, an information erasing paper 40 side section), a point 42b (a first mark 42 section on the paper 2 side), a point 43a (a second mark 43 section on the information erasing paper 40 side), a point 43b (second mark 43). Of the paper 2 side). As described above, the pen server 4 calculates all the intercepts in which the first mark 42 and the second mark 43 straddle the two spaces (step S104).

  Then, the erasure position detection program 26 determines the area of the information erasure paper 40 cut out from the information erasure tape 33 from the coordinates of the points 42a, 42b, 43a and 43b in the theoretical space 41 shown in FIG. Then, information on the pasting position indicating which region of the paper 2 is pasted is calculated (step S105).

(Method of calculation)
Here, the process of calculating which area of the paper 2 the area of the information erasing paper 40 is pasted in the theoretical space 41 will be described in detail. In the actual paper 2 shown in FIG. 7, when the information erasing paper 40 is pasted on the paper 2 to erase the locus 3 and the first mark 42 and the second mark 43 are entered with the electronic pen 1, the pen server 4. Calculates the coordinates of the four points of the point 42a, the point 42b, the point 43a, and the point 43b in the theoretical space 41 shown in FIG. Using the coordinates of these four points, it is determined in the theoretical space 41 where the area of the information erasing paper 40 is included in the area of the information erasing tape 33. It can be determined whether the area of the information erasing paper 40 is pasted.

  Here, the coordinates of each point in the theoretical space 41 calculated by the pen server 4 are the points 42a (x1, y1), 42b (x2, y2), 43a (x3, y3) and 43b (x4, y4).

  First, as a result, the length h1 of the information erasing paper 40 can be obtained as | y1-y3 |, whereby the shape of the information erasing paper 40 cut out from the information erasing tape 33 is determined.

Here, the act of actually affixing the information erasing paper 40 to the paper 2 as shown in FIG. 7 is that the region of the information erasing paper 40 is translated and rotated in the theoretical space 41 shown in FIG. This corresponds to associating the area of the information erasing sheet 40 with the area of the sheet 2. Therefore, if an arbitrary point (x ′, y ′) on the information erasing paper 40 corresponds to the point (x, y) on the paper 2 in the theoretical space 41, this correspondence relationship is It can be expressed using the following equation (1). From this equation (1), it is possible to calculate at which position of the paper 2 the information erasing paper 40 is attached and corresponds.

Here, x5 indicates the x coordinate of the portion of the theoretical space 41 shown in FIG. 8 that is closest to the origin of the area occupied by the information erasing tape 33. It is a numerical value set when an area is arranged in advance. Φ represents the rotation angle of the mapping onto the paper 2 at an arbitrary point on the information erasing paper 40, and can be obtained by the following equation (2).

  Using this equation (1), it is calculated that the area of the information erasing paper 40 is attached to the area indicated by the reference numeral 40a of the paper 2 in the theoretical space shown in FIG.

Next, using the information on the pasting position of the information erasing paper 40 calculated by the erasing position detection program 26, the position information erasing program 27 is indicated by reference numeral 40a in the theoretical space 41 shown in FIG. The position information of the paper 2 included in the area is deleted (step S106). Then, the position information erasure program 27 converts the position information included in the information erasure paper 40 as the position information of the area indicated by the reference numeral 40a of the paper 2 (step S107).
Then, the position information registration program 28 stores the converted position information in the position information management database 31 (step S108). Through the above process, the position information included in the area of the information erasing paper 40 is replaced and stored in the position information management database 31. When the position information included in the area indicated by the reference numeral 40a of the paper 2 is replaced with the position information included in the area of the information erasing paper 40, the position information included in the area indicated by the reference numeral 40a of the paper 2 is It can be deleted as in the present embodiment, and can also be stored separately as history position information in the position information management database 31 of the pen server 4.

  As a result, the locus 3 of the actual paper 2 is visually erased by being obscured by the information erasing paper 40, and in the theoretical space recognized by the pen server 4, in the area indicated by reference numeral 40 a shown in FIG. 8. The position information of the included locus 3 is covered by the mapping area according to the expression (1) of the area of the information erasing paper 40, and this situation is recognized as erasing, and the position information included in the information erasing paper 40 area. Can be erased with consistency between the locus 3 of the actual paper 2 and the positional information of the locus 3 of the paper 2 in the theoretical space 41.

  Thereafter, the pen server 4 has once entered the information entered with the electronic pen 1 into the information erasing paper 40 attached to the actual paper 2 in the area of the information erasing paper 40 in the theoretical space 41. Assuming that the position information is written in the area indicated by the reference numeral 40a, which is the mapping area according to the equation (1). As a result, it is possible to additionally write the information on the paper and the electronic information with consistency, and the entry information of the locus 3 can be corrected.

  As described above, according to the embodiment described above, an actual sticky note or a correction tape is used in the system that stores the entry information of the locus 3 written on the paper 2 as the position information using the electronic pen 1 in the pen server 4. The trajectory 3 entered on the actual sheet 2 can be erased and corrected with a sense, and the positional information of the trajectory 3 stored in the pen server 4 can be erased and corrected while maintaining consistency. it can.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In this embodiment, in the pen server 4 of the first embodiment shown in FIG. 1, among the information included in the correspondence information management database 29 and the shape management database 30, the correspondence of the information erasing paper 40 shown in FIG. The information and the shape information are placed in an external storage server connected via a network.

  For example, FIG. 9 is a diagram showing an overall configuration diagram of an information cancellation system in the present embodiment. Next, components of the information cancellation system of this embodiment will be described.

  The pen server 4 has the same configuration as the pen server 4 of the first embodiment shown in FIG. 1, except that in the present embodiment, the correspondence information management database 29 and the shape management database 30 have information deletion. The correspondence information and shape information of the paper 40 are not included. As shown in FIG. 9, the pen server 4 according to the present embodiment is connected to the network 44 using a modem 46a as an interface. In this embodiment, the electronic pen 1, the paper 2, and the information erasing paper 40 are the same as those in the first embodiment, and thus the description thereof is omitted. As in the first embodiment, the locus 3 is entered in advance on the paper 2 using the electronic pen 1, and the position information is stored in the position information management database 31 of the pen server 4.

  The storage server 45 is a server device using a known technique, and is connected to the pen server 4 via the network 44 using the modem 46b as an interface. The storage server 45 according to the present embodiment includes a cancellation correspondence information management database 29a storing correspondence information of the information erasing tape 33 including the information erasing paper 40 shown in FIG. 3, and a cancellation corresponding to the shape information stored therein. And a function for transmitting correspondence information and shape information of the information erasing tape 33 to the pen server 4 in response to a request from the pen server 4. As the network 44, for example, the Internet, a LAN (Local Area Network), a wireless LAN, a wireless packet communication network, or the like can be used.

  Next, the operation of the information cancellation system according to the present embodiment will be described with reference to FIGS. As in the first embodiment, the user of the information cancellation system of the present embodiment can select an arbitrary path from the information erasing tape 33 in order to erase the locus 3 entered on the actual sheet 2 and the position information. The information erasing paper 40 having a length is cut out and pasted on the locus 3. As in the first embodiment, a check is made using the electronic pen 1 so as to straddle the paper 2 and the two ends of the lengthwise end of the information erasing paper 40. At this time, the electronic pen 1 acquires the stroke data for this check, and simultaneously acquires information specifying the type of the information erasing tape 33 including the information erasing paper 40 from the dot pattern of the information erasing paper 40. Along with this stroke data, information specifying the type of the information erasing tape 33 including the information erasing paper 40 is transmitted to the server 4.

  In the pen server 4 that has received the stroke data and information specifying the type of the information erasing tape 33, the stroke data processing program 24 stores information in its own correspondence information management database 29 used when converting the stroke data into position information. It is determined that the correspondence information of the erasing tape 33 is not stored, and a request for correspondence information and shape information of the information erasing tape 33 is transmitted to the storage server 45. Receiving this request, the storage server 45 searches the corresponding information and shape information corresponding to the information erasing tape 33 from the cancellation correspondence information management database 29a and the cancellation shape management database 30a, and stores these information in the pen server 4 Send to. The pen server 4 that has received the correspondence information and the shape information of the information erasing tape 33 stores the information in the RAM 22.

  Thereafter, in the same process as in the first embodiment, the locus 3 is visually erased by pasting the information erasing paper 40 from the locus 3 entered on the actual sheet 2, and the theoretical space 41 is obtained. Also, the position information of the locus 3 is erased by replacing the area where the information erasing paper 40 is pasted in the area of the paper 2 with the area for information cancellation.

  As described above, according to the embodiment described above, when there are a plurality of pen servers 4, an area for canceling information such as the information erasing tape 33 is stored in the storage server 45 connected to the pen server 4 via the network 44. By storing the corresponding information and the shape information, it is not necessary to store these information in each pen server 4, and the area of the storage 20 of the pen server 4 can be used effectively.

(Third embodiment)
By using the information canceling system described above, an information erasing sheet formed in a predetermined shape is registered in the pen server 4 (see FIG. 1) instead of the information erasing tape 33 shown in FIG. It is also possible to create an information erasing sheet to be attached to a place. This information erasing paper may be shaped like a sticky note or tape with glue applied on the back side.

  For example, FIG. 10 shows a third embodiment of the information erasing paper in the present embodiment. A plurality of information erasing papers 50a to 50f (hereinafter collectively referred to as information erasing paper 50) shown in FIG. 10 are formed in a predetermined shape, and a plurality of information erasing papers are affixed to the mount. Similarly to the information erasing paper 40 shown in FIG. 4, the information erasing paper 50 of the present embodiment is also printed with a dot pattern whose position can be specified on the surface, and the correspondence information management database 29 and the shape of the pen server 4. In the management database 30, correspondence information and shape information of the information erasing paper 50 are registered.

  Here, the user of the information cancellation system that wants to delete the position information replaces the information deletion sheet 50 from the mount to the area where the position information of the sheet 2 is to be deleted. Then, using the electronic pen 1, two places are checked so as to straddle the paper 2 and the information erasing paper 50. With this information, the position information is erased by replacing the area where the information erasing paper 50 is pasted among the areas of the paper 2 in the theoretical space, as in the above-described embodiment.

  In the above-described embodiment of the present invention, many items are specifically described, but these are not intended to limit the scope of the invention but are illustrated as a preferred embodiment. A person skilled in the art to which the present invention pertains can implement the present invention with various modifications based on the technical idea of the present invention. For example, in the present embodiment, the position information corresponding to the entry information is erased by covering the entry information described on the sheet with the information correction sheet. A configuration is also conceivable in which location information is stored in layers by registering information separately. With such a configuration, it is possible to refer to position information before correction and to handle the information erasing paper like a sticky note. Therefore, the scope of the present invention is not determined by the above-described embodiment, but is determined by the technical idea described in the claims.

It is a figure showing the whole structure of a position information cancellation system. It is a figure showing the structure of an electronic pen. It is a side view of the holder of an information erasing tape. It is a figure explaining an information erasing paper. It is a figure explaining the positional relationship of the paper and information erasing tape in theoretical space. It is a flowchart which shows the position information cancellation process in a pen server. It is a figure explaining the state which attached the information erasure paper to the paper. It is a figure explaining the theoretical space in the state of FIG. It is a figure showing the whole position information cancellation system using an external storage server. It is a figure explaining another example of an embodiment of information cancellation paper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic pen 2 Paper 3 Trajectory 4 Pen server 33 Information erasing tape 40 Information erasing paper 41 Space 50a-50f Information erasing paper

Claims (5)

The entry information on the paper, which is handwritten on the paper with a unique dot pattern for specifying the position on the paper by hand using an electronic pen, is used as stroke data in which position information determined based on the dot pattern is listed. Acquired during handwriting using an electronic pen, used in a method of converting the stroke data into theoretical space position information in the terminal device and storing it in the storage means of the terminal device,
The paper is different from the paper, and an information erasing paper with a unique dot pattern for specifying the position on the paper surface is attached to a portion where the information to be written on the paper is to be erased.
A position information erasing method for erasing position information in the theoretical space stored in the storage unit together with entry information on the paper surface of the paper corresponding to the position information,
The paper and the information erasing paper each have a dot pattern indicating a different coordinate area,
The terminal device
in a state in which a) the information erasing sheet having a predetermined shape so as to cover the portion of the entry information on the paper to be erased of the sheet is attached, and said information erasing paper and the paper by using the electronic pen is generated by the electronic pen by marking a path is written across the position of the information erasing paper is identified by each comprise a different coordinate areas of the dot pattern of the boundary between the information erasing paper and the paper Inputting entry information from the electronic pen and obtaining it as position information;
b) obtaining the shape information of the information erasing paper from a storage means storing the shape information;
c) Using the shape information and the position information acquired in step a, calculate a pasting position in the theoretical space of the information erasing paper, and erase or record the position information of the paper overlapping the pasting position. Performing including moving to a file,
A method for erasing position information acquired with an electronic pen. d) The entry information entered using the electronic pen on the information erasing paper is used as the application position on the paper using the theoretical application position of the information erasing paper calculated in step c. Further comprising obtaining as corresponding location information;
The method for erasing position information acquired by the electronic pen according to claim 1. The information erasing paper is
In a case where the mark has a shape processed into a tape shape having a predetermined width and is used by being cut into an arbitrary length , the mark is in the length direction of the information erasing paper using the electronic pen Is written in two places, one end and the other end of
The terminal device
Acquiring the two input marks as two pieces of position information for specifying the position of the information erasing paper, and performing the process of step c using the two pieces of acquired position information ;
A method for erasing position information acquired by the electronic pen according to claim 1 or 2. The entry information on the paper, which is handwritten on the paper with a unique dot pattern for specifying the position on the paper by hand using an electronic pen, is used as stroke data in which position information determined based on the dot pattern is listed. Acquired during handwriting using an electronic pen, the acquired stroke data is converted into position information in the theoretical space and stored in the storage means,
The information erasing paper, which is a paper different from the paper and provided with a unique dot pattern for specifying the position on the paper surface, is affixed to a portion where the entry information of the paper is to be erased. The position for the terminal device used in the information erasing method using the electronic pen that erases the stored position information in the theoretical space together with the entry information on the paper surface of the paper corresponding to the position information. An information erasure program,
The paper and the information erasing paper each have a dot pattern indicating a different coordinate area,
The erase program is
In the terminal device,
in a state in which a) the information erasing sheet having a predetermined shape so as to cover the portion of the entry information on the paper to be erased of the sheet is attached, and said information erasing paper and the paper by using the electronic pen is generated by the electronic pen by marking a path is written across the position of the information erasing paper is identified by each comprise a different coordinate areas of the dot pattern of the boundary between the information erasing paper and the paper Inputting entry information from the electronic pen and obtaining the position information;
b) obtaining the shape information of the information erasing paper from a storage means storing the shape information;
c) Using the shape information and the position information acquired in step a, calculate a pasting position in the theoretical space of the information erasing paper, and erase or record the position information of the paper overlapping the pasting position. Executing including moving to a file,
An erase program for position information acquired by an electronic pen characterized by the above. The entry information on the paper, which is handwritten on the paper with a unique dot pattern for specifying the position on the paper by hand using an electronic pen, is used as stroke data in which position information determined based on the dot pattern is listed. Acquired during handwriting using an electronic pen, the acquired stroke data is converted into position information in the theoretical space and stored in the storage means,
The information erasing paper, which is a paper different from the paper and provided with a unique dot pattern for specifying the position on the paper surface, is affixed to a portion where the entry information of the paper is to be erased. An electronic pen terminal device used in an information erasing method using an electronic pen that erases the stored position information in the theoretical space together with the entry information on the paper surface of the paper corresponding to the position information. Because
The paper and the information erasing paper each have a dot pattern indicating a different coordinate area,
The terminal device
in a state in which a) the information erasing sheet having a predetermined shape so as to cover the portion of the entry information on the paper to be erased of the sheet is attached, and said information erasing paper and the paper by using the electronic pen is generated by the electronic pen by marking a path is written across the position of the information erasing paper is identified by each comprise a different coordinate areas of the dot pattern of the boundary between the information erasing paper and the paper Inputting entry information from the electronic pen and obtaining it as position information;
b) obtaining the shape information of the information erasing paper from a storage means storing the shape information;
c) Using the shape information and the position information acquired in step a, calculate a pasting position in the theoretical space of the information erasing paper, and erase or record the position information of the paper overlapping the pasting position. Providing a control device that executes including moving to a file,
An electronic pen terminal device.

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