JPS5896337A - Coordinate reading and displaying device - Google Patents

Abstract

PURPOSE:To reduce installation space and to improve operability, by calculating and storing a vector on the basis of a coordinate position inputted through a coordinate indicator, and displaying the storage output on a display device, and thus constituting a coordinate reader and a display device in one body. CONSTITUTION:Two points on a tablet 5b, i.e. a starting point 21 and an ending point 22 inputted by a coordinate indicator 6 are detected by a coordinate value detecting circuit 13 and inputted to a vector generating circuit 14 to generate a vector 23. This vector is written in a vector memory 16 by a memory control circuit 15 and transferred to a data memory 17. Then, it is transferred to a row driver 19 and a column driver 20 driven through an oscillating circuit 20, and the vector 23 is displayed on a liquid-crystal dot matrix 5a.

Description

Detailed Description of the Invention The present invention provides a coordinate reading display that integrates a tablet and a display device in a device that generates a vector based on coordinate values from a coordinate reading device and displays it on a liquid crystal dot matrix. It is related to the device.

A conventional device of this type includes a tablet 1. as shown in FIG. It consisted of a coordinate reading device consisting of a coordinate indicator 2, a graphic display 3 for displaying a vector, and a control circuit 4 for controlling these. However, in the conventional system, since the system is separated into two devices, the coordinate reading device as the input device and the graphic display as the output device, it requires a large installation space, has poor operability, and is expensive.

The present invention has been made to eliminate these drawbacks, and includes a tablet that detects a coordinate position using a coordinate indicator, a display device provided on the tablet, and a display device that detects a coordinate position input by the coordinate indicator. A vector generation circuit that calculates a vector based on the vector generation circuit, and a vector memory that stores the output of the vector generation circuit, and the output of the vector memory is displayed on the display device,
Coordinate reading device and liquid crystal dot matrix of display device) The purpose of this invention is to provide a coordinate reading and display device that is integrated with an IJ sock.

The present invention will be described in detail with reference to the following drawings. FIG. 2 is a block diagram showing one embodiment of the present invention, and FIG. 3 is a detailed block diagram of this embodiment. As shown in FIG. 2, 5 is a liquid crystal tablet, which is an integrated device consisting of a liquid crystal dot matrix 5α and a tablet 5b including a scanning line, 6 is a coordinate indicator, and 7 is a control circuit. be. FIG. 3 is a circuit block diagram of FIG.
α is the oscillation circuit of the coordinate reading section, 8h is the oscillation circuit of the display section,
9 is a scanning address counter, 10 is an X-axis scanning circuit, 11
12 is a Y-axis scanning circuit, 12 is a position detection circuit, 13 is a coordinate value detection circuit, 14 is a vector generation circuit, 15 is a memory control circuit, 16 is a vector memory, 17 is a liquid crystal data memory, 18
1 is a liquid crystal control circuit, 19 is a row driver, and 20 is a column driver. To operate this, as shown in FIG. 3, a clock is supplied from the oscillation circuit 8a to the coordinate indicator 6 and the scanning address counter 9, and the X-axis scanning circuit 10 and the Y-axis scanning circuit 11 are driven. .

By indicating the position of the tablet 5b with the coordinate indicator 6, the position by scanning by the X-axis scanning circuit 10 and the Y-axis scanning circuit 12 is detected by the position detection circuit 12, and the coordinate value detection circuit 1
3 is output. At the same time, the coordinate value detection circuit 15 detects the X and Y coordinates of the position indicated by the coordinate indicator 6 from the contents of the scanning address counter 9 and the output of the position detection circuit 12.

If two points on the tablet 5b are input using the coordinate indicator 6, the starting point 21 and the ending point 22 are detected by the coordinate value detection circuit 13 in FIG. 3, as shown in FIG. is input. The vector generation circuit 14 generates a vector 23 as shown in FIG. 5 from the coordinate values of the two points inputted by the coordinate indicator 6. The vector generated by the vector generation circuit 14 is written and stored in the vector memory 16 by the memory control circuit 15.
The vectors stored in are transferred to the liquid crystal data memory 17. The vector transferred to the liquid crystal data memory 17 is transferred to the row driver 19 and column driver 20 driven by the oscillation circuit 8h, and is converted into a vector 23 as shown in FIG.
is displayed on the liquid crystal dot matrix 5α.

As is clear from the above description, according to the present invention, there is provided a tablet that detects a coordinate position using a coordinate indicator, a display device provided on the tablet, and a display device that detects a coordinate position input by pressing the coordinate indicator. The structure is equipped with a vector generation circuit that calculates a vector based on a vector, and a vector memory that stores the output of this vector generation circuit, and displays the output of the vector memory on the display device, so that it can be used in the same manner as in the conventional system. To eliminate the need for two devices, a coordinate reading device and a display device, and instead only need one coordinate reading and display device that integrates them, which reduces installation space, improves operability, and makes it inexpensive. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a conventional coordinate reading device and display device, FIG. 2 is a block diagram showing an embodiment of the coordinate reading and display device according to the present invention, and FIG. 5 is a detailed diagram of FIG. 2. The block diagram, FIG. 4 is an explanatory diagram showing an example of reading coordinate positions, and FIG. 5 is an explanatory diagram showing an example of vector display. 5...Liquid crystal tablet 5α...Liquid crystal dot matrix 5b...Tablet 6...Coordinate indicator 14...Vector generation circuit 16...Vector memory or above Applicant No. Co., Ltd. Niseikosha Agent, Patent Attorney, Mogami, Figure 4, Figure 5-

Claims (1)

[Claims] A tablet for detecting a coordinate position by a coordinate indicator, a display device provided on the tablet, a vector generating circuit for calculating a vector based on the coordinate position input by the coordinate indicator, and a vector generating circuit for calculating a vector based on the coordinate position input by the coordinate indicator. 1. A coordinate reading and display device comprising: a vector memory for storing an output of a circuit; and a coordinate reading/display device configured to display the output of the vector memory on the display device.