JPS5856084A - Erasure system for character and graph on tablet - Google Patents

Abstract

PURPOSE:To erase a specified area on the basis of coordinate at a reception side, to improve operability, and to erase unnecessary parts securely, by arranging erasers of different size for erasing some or all of handwritten characters or graphs on the tablet of each terminal. CONSTITUTION:Erasers differing in size are arranged on the coordinate input equipment of each terminal, and eraser information and coordinate data S1-Sn from those plural erasers are inputted to a coordinate detection part 1 and an eraser shape specification part 2. A coordinate position signal Sa detected by the detection part 1 and a shape of erasure and size Sb specified by the specification part 2 are supplied to a transmission part 3, which performs transmission to a reception part 4. A coordinate position signal Sd and an erasure shape and size Sc modified by the reception part 4 are applied to an erasure coordinate generation part 5, which outputs a signal for specifying an erasure area on the basis of one coordinate point, thus securely erasing some or all of input handwritten characters or graphs.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for erasing coordinates and characters and false figures on input scissors in a handwriting communication system in which handwritten data is exchanged between three or more parties.

A coordinate input device (tablet) for each terminal device by connecting two or more terminals with the Kameki *tm threshold for handwriting using a data network.
The handwritten data placed above (the seat) is sent and received by the full VC system (the g system has been fully developed). The input from the coordinate input device (tablet) of the terminal device is
Although it depends on the stylus pen (2018), the pen tip is a stylus pen (2018), a pencil, etc., the pen tip leaves a trace on the stylus pen (2018), allowing the user to check the characters and figures being stored. To erase written characters and figures, either operate a switch or specify the erasing area with a stylus pen, or
It is necessary to display diagonal lines by writing diagonal lines, or by using a stylus pen with an eraser or the like on the tip.

However, the method of operating a switch or specifying an erasing area has the disadvantage that it is not possible to erase the characters or figures themselves on the tablet surface, so it is not clearly indicated that they have been erased. Furthermore, in the method using diagonal line writing, characters and diagonal lines remain on the tablet surface, making it difficult to overwrite the erased portion.

The method of using a stylus pen with an eraser, blackboard eraser, etc. on the tip is not suitable for erasing minute or very large areas because the eraser area is insufficient due to the large #ζ at the tip.

The purpose of the Misfire E14O is to solve the above-mentioned conventional problems by preparing multiple erasers such as erasers and blackboard erasers, so that the stylus pen with these erasers attached to the tip can erase multiple areas of different sizes. In order to achieve the above-mentioned purpose, the misfire F14 provides a method for erasing characters and figures on the coordinate input device using the 0. , ``Erasers of 28 or more different sizes for erasing part or all of the handwritten characters and figures written on the tablet of each terminal device are provided, and on the receiving side, the one indicated by the eraser is provided. It is characterized by providing an erasure coordinate generation section that generates a designated erasure area based on the two zazen S, and electrically erasing the same area as the area to be actually removed (based on the output information of the erasure zazen generation section). FIG. 1 is a block layer diagram of an embodiment of a diagram-shaped erasing method.

In Fig. 1, 1 is a coordinate detection section, 2 is an eraser shape specification section, and 3
Fi transmitter, 4 is a receiver, and 5 is an erasure coordinate generator.

Multiple types of erasers, such as erasers and blackboard erasers, are prepared for the coordinate input device of the terminal, and these erasers are attached to the tip of the stylus pen. The eraser at the tip of the stylus pen determines the shape and size of the erase area for the coordinate human power of the stylus pen according to the type (shape and size) of the erase width. 08I to 8n are the n types of erasers. An information signal representing the shape and size and coordinate data are transmitted.
Determine which type of eraser generated the coordinate data inputted to the coordinate detector IK by the eraser shape specifying unit 2,
Adjust the size and shape of the erase area according to its type.
, the erasure coordinate generating section 5 via the transmitting section 3 and the receiving section 4
Notify. - The ten thousand coordinate detection unit 1 receives and detects the coordinate position information indicated by the eraser at the tip of the stylus pen, and
The coordinate position information Vt is sent to the eraser coordinate generator 5 via the transmitter 3 and the receiver 4. On the 8c line, a signal representing the shape and size depending on the type of eraser is sent to the eraser zazen generator 5. 5dII! The coordinate position signal specified by the eraser on the tablet is sent to the eraser coordinate generator s5. The address of the storage device is specified according to the shape and size, and the fixed erase (blank) information stored corresponding to the address is read out.0 erase (g! white) information depends on the size and type of shape. Accordingly, it has a plurality of sizes 11- from large to small. This read erasure (blank) information @ is compared with the 1&square position information 8d, and is outputted from the erasure coordinate generation unit 5 as coordinate data enlarged erasure area information at the corresponding position.

After that, the erased coordinate data is filled with blanks at the receiving end*, and the characters, figures, etc. previously written in the designated area are erased.

Diagram 2 shows the state in which characters/figures on the tablet are erased by the eraser of the editor. In the same figure, the eraser area is shown as a circle, but it can also be rectangular. do not have.

As explained above [79], according to the present invention, erasers of multiple shapes and sizes can be used, so it is easy to use erasers for small areas, large areas, etc. In the handwriting overconfidence system, it has a great effect on the operability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of a method for erasing literary figures on a tablet according to the present invention, and FIG. 2 is a state diagram illustrating the erasing method according to the invention.

Claims (1)

[Claims] In a live communication system in which handwritten data is exchanged between three or more parties, two cards of different sizes are used to erase part of the handwritten characters, figures, or marks printed on the tablet of each tablet device. M or more γ^6 devices are provided, and an erasure location similar generation unit is provided that creates a designated erasure area based on one coordinate indicated by the erasure in the receiving station, and the output h of the erasure memory generation unit is provided.
A method for erasing characters and graphics on a tablet that electrically erases the same area that is actually erased.