JPS6017575A - Coordinates input device - Google Patents

Abstract

PURPOSE:To eliminate faults of being easily subject to damage by bend and friction by utilizing rigid material for the 2nd detection board in the system with a resistant board, attaining the reduction of input strain over a long period. CONSTITUTION:Due to pressurization by a pen 2, the 1st detection board 1 consisting of a polyester film, etc., is bent at a pen input point A, and also when the pen 2 is to travel, friction is produced in a travel direction at pen input point A. The 2nd detection board 9, consisting of rigid material such as a glass board, will not be bent, and because the 1st detection-board 1 bend finishes at the point contacting with the 2nd detection 9, the damage by the 1st detection- board 1 bend is controlled in minimum. Further, friction by two detection boards 1 and 9 is reduced, thereby damage by these boards being also reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a coordinate manual device that detects the coordinate position of a writing instrument and inputs the detected coordinate position information to a calculation device.

2. Description of the Related Art Conventional Structures and Problems Generally, coordinate human power devices detect the coordinate position of a pen in order to input handwritten characters. The detected character information is sent to a computer or the like and displayed on a display device such as a CRT.

Conventionally known coordinate human-powered devices are used to detect the position of a pen for handwriting input, and use inductive coupling between the pen and a detection plate that detects the coordinate position to convert the position signal of the detection plate into the pen. I received it at On the other hand, there is a method in which the coordinate position is determined by receiving signals from the pen on a detection plate.

Like other conventional coordinate input devices, there is one that uses a resistor plate with uniformly distributed resistance values. Compared to the distribution method, this method has the advantages of a simple device configuration and no need for a special pen. In this case, electrodes on the knee sides of two resistive plates are provided, and these plates are used as detection plates for knowing the coordinate positions in the X-axis direction and the Y-axis direction, and are opposed to each other with a spacer interposed therebetween. As spacers, insulators, pressure-sensitive conductive rubber sheets, etc., which are applied to the detection plate at regular intervals, are used. With the above configuration, when pressure is applied with a pen from the second part of the detection plate, the two previously insulated detection plates become electrically conductive, and the location of the pressurized point on the detection plate containing coordinate position information,
The river is derived, and from this the yP marker position is r”L, 1
,3,,Using this resistance plate -7) Equation t;11.1
As noted (/-) (m configuration surface, use surface ty+-: ii.Although there is an orientation point that can be entered, it is necessary to pressurize by Ki and I Ben since the coordinates cannot be input.) 1 bent, 1 scratched by Ai:) (・), 1 scratched by friction
1. Purpose of the Invention The purpose of the present invention is to provide a coordinate input device using a resistor plate, which solves all the problems of the conventional method and prevents the resistor of the detection plate from being easily damaged. shall be.

Structure of the Invention The coordinate input device of the present invention includes: 1. A first detection plate having flexibility coated with a resistor; and a resistor placed on the first detection plate with a spacer interposed therebetween. It is constructed of a second detection plate made of a hard material and has a low input strain over a length of 1 to 1υ1 without damage due to bending or friction.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In the figure, reference numeral 1 denotes a first detection plate made of polyester noil A, etc., which has the flexibility of input L7' (YI so that one point is deformed by 1 force) with a pen 2, and the lower surface of this insulating plate 3 is The two resistance values are uniformly distributed so that they change regularly.

A resistor is coated on the resistor, and electrodes 4 and 5 are provided on 22 opposing sides. d on the lower blade of the first detection plate 1, @
! For example, the resistance value on the top surface of the lath board 6;
1-1, the resistor is coated uniformly so as to vary, and further electrodes 7.8 are provided on three opposing sides at positions different from the first detection plate 1. A second detection plate 9 is arranged to face the second detection plate 9. The top surface of the second detection plate 9 is /
Spacers 10 made of an insulator such as recon are placed at regular intervals (
A large number of shields are provided to keep the first detection plate 1 and the second detection plate 9 in an electrically insulated state.

In the configuration of -1- below, the pen 2 is inserted from above the first detection plate 1.
For example, when inputting with a pressure higher than the specified value,
If a constant voltage is applied between the electrodes 7 and 8 by the control device 11, a divided voltage corresponding to the position of the pen 2 in the X-axis direction is derived at the electrode 7, and conversely, a constant voltage is applied between the electrodes 7 and 8 by the control device 11. In addition, a divided voltage corresponding to the position of the pen 2 in the Y-axis direction is derived to the electrode 4. By manually inputting the divided voltages containing the position information derived from this 2-τ to an arithmetic device 12 such as a combi coater, the coordinate position of the pen can be calculated.

FIG. 2 shows a state in which pen input is being performed on the coordinate input device shown in FIG. 1. At the pen input point A of pressure application by the pen, the first detection plate IC,1 is bent,
When the pen 2 moves, the pen force point AK produces some friction in the direction of movement. Here, since the second detection plate 9 is made of a hard glass plate or the like, the second detection plate 9 is not bent, and the bending of the first detection plate 1 is caused by the bending of the first detection plate 1. Since the process ends when it comes into contact with the second detection plate 9, damage caused by bending of the first detection plate 1 can be minimized. Furthermore, the friction between the two detection plates 1.9 is also reduced, and damage caused by this is also reduced.

This eliminates the drawback that the resistor of the detection plate is easily damaged.

It's a moat, the detection plates 1 and 9 and the spacer 1o are made of transparent material.

From this configuration, it is also possible to display a single trace by installing a display device below the detection plate.

Effects of the Invention As described in 1-1 above, the coordinate input device of the present invention uses a hard material for the second detection plate in the system using a resistance plate, which prevents damage from bending and friction, which was conventional. It is possible to provide a coordinate input device which eliminates the disadvantage of being easy to use and which causes little input distortion over a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a coordinate input device according to an embodiment of the present invention, and FIG. 2 is a front sectional view thereof. 1...First detection plate, 2...Pen, 6...
・Crow plate, 9...Second detection plate.

Claims (2)

[Claims] (1) Coating a resistor and coating a flexible first detection plate and a resistor arranged on the first detection plate via a spacer/ζ hard material A coordinate input device 1 consisting of a second detection plate, (2) The coordinate input device according to claim 1, wherein the first detection plate and the second detection plate are made of transparent H material. G3) The coordinate input device according to claim 2, wherein the spacer is made of transparent material.