JPS61278928A - Erasing device for coordinate input device - Google Patents

Abstract

PURPOSE:To attain an easy and continuous erasure operation by providing the coordinate specifying pen of a coordinate input device of a tablet type with a means for specifying the erasure range of inputted coordinate data. CONSTITUTION:A slide-type adjusting lever 4 is installed on the axis of a stylus pen 2 generating a coordinate input signal to a coordinate detecting part 1 by operating on a tablet panel 3 for inputting coordinates. When area erasure information is outputted from an erasure specifying part 5 not shown in figure, the coordinate information within the range specified by the adjusting lever 4 is continuously erased. Thus troublesome intermediate operations such as a switch operation for erasure and the specification of the erasure range become unnecessary, and an erasure signal generating means in a specifying means can easily and continuously carry out the erasure operation, following an input operation.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an erasing device for a coordinate input device, and more particularly to an erasing device for erasing characters input on a coordinate input device of a handwritten communication system in which handwritten data is exchanged between two or more parties. This invention relates to a figure erasing device.

[Prior art]

A handwriting communication system in which at least two or more handwritten character terminal devices are connected by a data line and handwritten data written on a tablet 911, which is a coordinate input device of each terminal device, is transmitted and received as coordinate values to each other. is proposed.

In such conventional coordinate input devices of terminal devices, handwritten input is performed from the tablet board using a stylus pen with a felt-tip pen, pencil, etc. at the tip, and the trajectory of the pen tip is recorded on the tablet board. By remaining there, the written characters and figures can be confirmed by the user. However.

To erase these written characters and figures,
Do you specify the erasure area by operating a switch or using a stylus pen, or do you draw diagonal lines and display the erasure range using the diagonal lines?

Alternatively, it was necessary to prepare a stylus pen with an eraser or the like on the tip.

However, simply operating a switch or specifying an erasing area with a stylus pen does not erase the characters or figures themselves on the tablet board, so there is a drawback that the erased state is not clearly expressed on the tablet board.

In addition, even if the erased range is displayed by writing diagonal lines, the characters and the diagonal lines themselves remain on the tablet board, so even if the erasure is confirmed visually, new characters, etc. are actually added to the erased range. It is difficult to re-enter information.Furthermore, if you use a stylus pen with an eraser or blackboard eraser attached to the tip, the erase area is determined by the size of the tip, so the erase range is limited.
In order to erase a very large erasing range, it is necessary to use several different types of erasing stylus pens, which is cumbersome and rare.

〔the purpose〕

An object of the present invention is to solve the above-mentioned drawbacks of the conventional example, and to prepare a special erasing stylus pen by using a stylus pen equipped with an erasing signal output means that allows adjustment of the erasing range. To provide an erasing device for a coordinate input device capable of erasing characters and figures with a simple operation without any need.

[Summary of the invention]

That is, the present invention provides a tablet board of a terminal device that is capable of mutually transmitting and receiving handwritten data inputted by an instruction means, and a tablet board of a terminal device that is disposed in the instruction means and that transmits information regarding the erasing range of the handwritten data inputted to the tablet board. a signal generating means capable of outputting data on the coordinates of the erasure range;
an erasing area setting means disposed in a terminal device on the receiving side and setting an area to be erased having a corresponding shape and area at a coordinate position based on information regarding the erasing range outputted from the instruction means; Based on the output of
The present invention is characterized by comprising means for erasing an erasure area at the coordinate position on the tablet board.

〔Example〕

Embodiments of the present invention will be described in detail and specifically below based on the drawings.

FIG. 1 shows an embodiment of the present invention, where l is a coordinate detection unit, and writing and erasing information is input onto the surface of a tablet board 3 using a stylus pen 2 as shown in FIG. Then, the coordinate detection section 1 detects the coordinates of the input position.

That is, in this example, the stylus pen 2 is provided with an adjustment lever 4 for specifying the erase range, and by moving the adjustment lever 4 up and down, the position coordinates input by the instruction of the tip of the stylus pen 2 are referenced. You can specify the area of the range to be erased.

Thus, as shown in FIG. 1, the coordinate data and the information signal S regarding the erasure range are sent from the stylus pen 2 to the coordinate detection unit 1 and the erasure range designation unit 5, respectively. 5, a position coordinate signal and an erasure range designation signal are supplied to an erasure area setting section 8 via a transmitting section 6 and a receiving section 7, respectively. Note that sA and SO are position coordinate signal lines, and S8 and SO are erase range designation signal lines.

Here, the erasure area setting section 8 has an input register 9 and a storage device 10, and erasure area information corresponding to the sizes of a plurality of types of erasure ranges is stored in the addresses of the storage device 10. Therefore, the signal line S is connected to the input register 9.
When the erasing range designation signal is input through C, the erasing area setting unit 8 reads out the erasing area information from the address corresponding to the erasing range designation signal in the storage device, and combines it with the position coordinate information obtained from the signal line Sp. coordinate data enlarged erasure area information is output as erasure information of the designated area based on the coordinate data.

Therefore, after this information is output, if the coordinate data to be erased is overpainted with blanks on the receiving terminal side, the characters, figures, etc. written in the designated area based on the coordinate data will be erased. The third
The figure shows the stylus pen 2 depending on the size of the erasing area.
Two examples are shown in which the position of the adjustment lever 4 is adjusted.

That is, as shown on the left, when the object to be erased is narrow, for example, by aligning the adjustment lever 4 with the lower scale and pointing the center of the erasing range with the tip of the stylus pen 2. If the object to be erased is wide, the adjustment lever 4 may be adjusted to the upper scale as shown on the right, and the same operation may be performed.

Note that the operability can be further improved by lighting the erase area or displaying marks, symbols, etc. on the tablet. Further, in this example, a case has been described in which the size of the erasing area is set to be concentric circles, but such erasing area may be square, rectangular, or even square.

It goes without saying that these various shapes can be combined and set to have different sizes.

Furthermore, the erasing area specifying means provided on the stylus pen 2 is not limited to the adjustment lever, but may be any means that can be easily operated manually. In this example, the size of the erasure area is specified using such a specification method, but if multiple types of shapes are set as described above, the shape can be specified together with the size. You can also do something like this.

〔effect〕

As explained above, according to one aspect of the present invention, the instruction means for inputting handwritten data is provided with a signal generating means capable of outputting information regarding the erasure range of data and coordinate data regarding the erasure range, and one The receiving terminal device is provided with erasure area setting means for setting a corresponding erasure area based on the information and data from the signal generation means,
Since erasing on the tablet board is obtained by the output signal from this erasing area generating means, there is no need for troublesome intermediate operations such as operating switches for erasing or specifying the erasing area, and the erasing signal is generated by the indicating means. With this means, it is possible to easily perform the erasing operation successively following the input operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of the configuration of an erasing device for the coordinate input device of the present invention, FIG. 2 is a model diagram showing an example of the stylus pen and signal generating means for erasing the stylus, and FIG. FIG. 3 is a perspective view showing two sides of erasing according to the invention for reference; l...Coordinate detection unit, 2...Stylus pen, 3...Tablet board, 4...Adjustment lever, 5...Eraser range designation unit, 6...Transmission unit, 7... Receiving unit, 8...Erasing area setting unit, 9...Input register, 10...Storage device, S...Eraser information and coordinate data, SA*''
B + S e + S D ... Signal line.

Claims (1)

[Claims] A tablet board of a terminal device capable of mutually transmitting and receiving handwritten data inputted by an instruction means, and a tablet board disposed in the instruction means to transmit information regarding an erasing range of the handwritten data inputted to the tablet board to the erasing range. A signal generating means capable of outputting along with coordinate data, and a signal generating means disposed in the terminal device on the receiving side, and based on information regarding the erasing range outputted from the indicating means, the area to be erased having a corresponding shape and area are determined by the coordinates. Coordinate input characterized by comprising an erasing area setting means for setting at the position of the erasing area, and a means for erasing the erasing area at the coordinate position on the tablet board based on the output from the erasing area setting means. Erase device for equipment.