JPH07101337B2 - Input / output integrated display device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to electronic paper in which coordinate input and display functions are integrated, and more particularly to a cursor display method suitable for stroke input.

[Conventional technology]

Recently, there have been many announcements and reports of handwriting input devices in which coordinate input and display functions are integrated. These are electronic papers that electronically simulate the sensation of conventional paper and pencils. This electronic paper recognizes the input stroke information in real time and displays the result at the input place, or the character string displayed as disclosed in Japanese Patent Application No. 59-19853. You can enter the calibration symbol directly on the and edit it.

In the electronic paper as described above, there is a drawback that the stroke handwriting display is hard to see when a new stroke is already input and a new stroke is input on the character. Therefore, in a handwriting word processor of a certain company, when the start point of the first stroke is input, the character input screen is immediately erased, and then the stroke is displayed. However, in this method, since the area cannot be erased without inputting the stroke to the area to be input, the operability was poor with the electronic paper capable of inputting and displaying a plurality of characters.

In other methods, Nikkei Electronics '86 .12.5 P1
As disclosed in 26, editing menus, eg, 1
There is a method that deletes characters when you select the character deletion menu and enter the characters you want to delete. Even in this method, the number of operations is required twice to rewrite one character, and the operability is poor.

On the other hand, in the cursor display that is often used for CRT displays, conventionally, there are a cross-shaped cursor, an arrow-shaped cursor, and a reverse cursor. I couldn't get it.

Therefore, an object of the present invention is to provide a cursor display method suitable for handwriting display of character strokes in electronic paper having an integrated input / display function.

[Means for solving problems]

The purpose is to display a blank cursor at the cursor position when the coordinate input device is in the non-stroke coordinate state, that is, in the off-stroke, and once the on-stroke is input, the blank cursor is displayed during the input of one character. This is achieved by prohibiting the display.

[Action]

According to the present invention, after displaying a blank cursor display at a coordinate position portion to be input from now on, once a character stroke is input, the blank cursor display is not performed and only the character stroke is displayed as handwriting. Therefore, it is possible to significantly improve the operability at the time of re-inputting at the time of erroneous input or recognition error.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows the overall block configuration of one embodiment of the present invention.
Is a transparent coordinate input device (TB), and 2 is a liquid crystal flat panel display (LCD), which is an integrated structure. The physical positional relationship between 1 and 2 may be reversed, but in this case, it is particularly preferable to use the electromagnetic type or the magnetostrictive type for the coordinate input device. 3 is a coordinate input device
The TB stylus pen can detect stroke on / off states. Reference numeral 4 denotes a processing device, which is configured by a micro computer or the like. Reference numerals 5 to 10 represent processing blocks inside the processing device 4, 5 is processing for inputting the output of the coordinate input device 1 to the processing device 4, and 6 is a display frame from the coordinate data as shown in FIG. Calculation processing, 7 is processing for determining the switch state of the stylus pen 3, and 8 is display frame calculation processing 6 when the stylus pen is off.
A process for displaying a blank cursor at the frame position calculated by, 9 is a character recognition process for recognizing handwritten characters when the stylus pen is on (ON), and 10 is recognized as a stroke display for displaying handwriting of a character stroke. It is a character display process for displaying characters in clear text.

The operating condition of the present invention will be described with reference to FIGS. 3 and 4.
Fig. 3 shows the problems of the conventional display system. "Handwriting recognition system" is displayed at the position of display frame number FRAME20-25.
Is displayed in clear text. However, because the character of FRAME23 is a typographical error, it shows that a new character stroke is being input. However, since the previous character is displayed in FRAME23 in clear text, it overlaps with the handwriting display of the new stroke input, making stroke input difficult. Therefore, as shown in FIG. 4 (b), the stylus pen 3 is brought closer to the coordinate input device 1, that is, when the stylus pen is off, a blank cursor is displayed at the position of FRAME No. = 23, Clear the plain print letters of "ori". Then, as shown in FIG. 4 (c), a new stroke is input and displayed. When the input of the character stroke is completed (the stylus pen moves to another display frame, or the stylus pen detects a certain time after the stylus pen is up), FIG. 4 (d).
The new character code “knowledge” as a result of the character recognition processing is displayed in clear form as shown in FIG.

When there is no new stroke input and the stylus is moved to another frame while the blank cursor is displayed in Fig. 4 (b), a blank cursor is displayed in the moved frame and the original frame is displayed. Needless to say, the previously displayed character will be redisplayed.

FIG. 5 is a flow chart in which the block of the processing device 4 of FIG. 1 is further represented by a program image.

When the stylus pen SW is on, that is, when a stroke is input, the blank cursor display flag is turned on and off depending on whether a stroke of one character is cut out,
With this flag control, the blank cursor is not displayed even in the off state while one character is being input.

As described above, according to the embodiment of the present invention, since the cursor display of the electronic paper in which the input and the display are integrated is displayed in the blank, the stroke handwriting display can be well expressed, and the character stroke can be easily input. There is.

As another embodiment of the present invention, as shown in FIG. 6, a switch and a blank cursor display SW for giving a timing of the blank cursor display are provided in addition to the stray rice pen SW.
A blank cursor may be displayed when the SW is turned on. The flow when this blank cursor display SW is used is shown in FIG.

The other embodiment has the advantage that the operator can freely select the timing of displaying the blank cursor.

Further, in one embodiment of the present invention, the input stroke is recognized as a character and displayed in clear text, but the character may not be recognized and the stroke may be displayed as it is.

〔The invention's effect〕

As described above, according to the present invention, in the electronic paper in which the input and the display are integrated, a blank cursor is displayed when a stroke is re-entered on a character font (or image data) that is already in clear print. , The stroke handwriting display is easy to see, and there is an effect that it is easy to input the stroke.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIGS.
FIG. 5 is a diagram for explaining the operation of the present invention, FIG. 5 is a process flow diagram, and FIGS. 6 and 7 are diagrams showing another embodiment of the present invention. 1 ... Tablet, 2 ... Liquid crystal display, 3 ... Stylus pen, 4 ... Processing device, 5-10 ... Processing block.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G09G 5/22 D 9471-5G 660 Z 9471-5G 670 C 9471-5G (72) Inventor Junko Mori 4026 Kuji Town, Hitachi City, Ibaraki Prefecture Hitachi Research Laboratory, Hitachi, Ltd. (72) Inventor Toshimi Mifune 4026 Kuji Town, Hitachi City, Hitachi City, Ibaraki Hitachi Research Laboratory, Hitachi Ltd.

Claims (3)

[Claims] 1. An input device, coordinate input means for inputting a stroke handwritten by the input device, and display means for displaying at least information corresponding to the handwritten stroke on a screen. In an input / output integrated display device integrated with display means, when the input device approaches the screen, display control means is provided for erasing the information already displayed at that position from the screen. Integrated input / output display device. 2. The display control means according to claim 1, wherein the information erased due to the input device approaching the screen is moved to another position on the screen by the input device. Is an input / output integrated display device characterized by displaying. 3. An input device, coordinate input means for inputting a stroke handwritten by the input device, and display means for displaying at least information corresponding to the handwritten stroke on a screen, the coordinate input means. In an input / output integrated display device integrated with a display means, the input device is provided with a blank cursor display designating means for controlling display switching of a blank cursor, and the blank cursor display designating means designates display of a blank cursor. In the case of being pressed, a blank cursor is displayed at the position of the input device on the screen, and an input / output integrated display device.