JPS63204316A - Cursor controller - Google Patents

Abstract

PURPOSE:To perform exact pointing in a vertical or a horizontal direction and to enable an easy operation to be performed at a narrow place, by providing reset switches at counters of an X-coordinate and a Y-coordinate respectively. CONSTITUTION:An X-coordinate counter 7 and a Y-coordinate counter 14 are cleared not only by a reset signal 18 from a control circuit 17 but the turning ON of switches 1 and 8. Therefore, for example, by resetting the X-coordinate counter 7 by turning on the switch 1, it is possible to perform the pointing of a cursor exactly only in the vertical direction, and also, by resetting the Y-coordinate counter 14 by turning on the switch 8, it is possible to perform the pointing of the cursor exactly only in the horizontal direction. Furthermore, by turning on both the switches 1 and 8, it is possible to move the cursor exactly without separating a roller, etc., from a contact surface when a device is used at the narrow place.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a cursor control device for a mobile cursor pointing device.

<Prior Art> Conventionally, a mobile cursor pointing device (hereinafter referred to as pointing device) is capable of moving a cursor at relatively high speed and with high precision, and there are mechanical, optical, etc. methods.

For example, in a mechanical structure, a pointing device has a roller, and when the roller moves, the amount of rotation is divided into X coordinate (horizontal direction) and Y coordinate (vertical direction) and counted, and each counter has a roller. Store relative displacement.

The host then displays a cursor on the reading screen based on the counter value.

<Problems to be solved by the invention> The above-mentioned conventional pointing device uses mouth coordinates and Y
To divide into coordinates and set the counter value, use the cursor.
It is very difficult to point accurately only in the vertical direction or only in the horizontal direction.

Furthermore, when using a pointing device in a narrow space, the range of movement of the roller is limited, so it is difficult to point at the cursor. It is necessary to return it to 1 and move it again. In this case, if the roller rotates when returning the roller, it causes an error in the counter value, so the roller must be moved away from the contact surface, resulting in problems such as troublesome operation.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and provide a cursor control device for a mobile cursor pointing device that can accurately point vertically or horizontally and can be easily operated even in a narrow space. It's about doing.

Means for Solving the Problems> The device of the present invention increments or decrements the amount of movement of the mobile cursor pointing device in the R and Y coordinate directions, and has an X coordinate counter and an X coordinate counter that are cleared when a reset signal is input. a Y-coordinate counter; a control circuit that receives data output signals from the X-coordinate counter and the Y-coordinate counter and outputs a reset signal;
a switch that controls a reset signal to the coordinate counter;
a switch that controls a reset signal to the Y-coordinate counter; a reset signal generation circuit that generates a reset signal to the X-coordinate counter or the Y-coordinate counter by each of the switches; a reset control signal from the reset signal generation circuit; The present invention is characterized in that it includes an OR circuit that receives a reset signal output from a control circuit and outputs a reset signal to an X-coordinate counter or a Y-coordinate counter.

<Example> An example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a device according to the present invention, in which a reset signal 2 from a power source 1 is transmitted to a reset signal generating circuit 3.
The reset control signal 4 input to and output from the OR circuit 5
The output signal 6 of the OR circuit 5 is input to an X coordinate counter 7 that counts the amount of movement of the pointing device in the horizontal direction. Similarly, the reset signal 9 from the switch 8 is input to the reset signal generation circuit lO, the output reset signal 11 is input to the OR circuit 12, and the output signal 13 of the OR circuit 12 is used to generate the vertical movement of the pointing device. It is configured to be input to a Y coordinate counter 14 that counts the amount.

Further, the X-coordinate data output signal 15 from the pointing device is input to the X-coordinate counter 7 , and the data output signal 16 output from the counter 7 is input to the control circuit 17 . Furthermore, this control circuit 17 outputs a reset signal 18.
rll is output to the OR circuit 5.12.

Similarly, regarding the Y coordinate, the Y coordinate data output signal 20 from the pointing device is input to the Y coordinate counter 14 to the control circuit 17, and from the control circuit 17, rlJ is sent as the reset signal 18 to the OR circuit 5. , 12.

Next, the operation of the control device with the above configuration will be explained.

Data input from the pointing device is divided into X coordinate and Y coordinate depending on the direction of movement, and the X coordinate counter 7 and Y coordinate counter 14 are constantly incremented or decremented, respectively. When the control circuit 17 receives the X-coordinate and Y-coordinate counter values from the data output signal 16.20, it outputs a reset signal 18 to the X-coordinate counter 7 and Y-coordinate counter 14 to clear the counters 7.14.

On the other hand, when the switch l is turned on, rlj is output as the reset control signal 4, and when it is turned off, the reset control signal 4 is output.
The reset signal generation circuit 3 outputs rQJ as
Set. Furthermore, reset control signal 4 and reset signal 1
8 in the OR circuit 5, and the result is sent to the X coordinate counter 7.
Output to. Cleared in that case.

Similarly, when the switch 8 is turned on, rlJ is output as the reset control signal 11, and when it is turned off, the reset control signal 1 is output.
The reset signal generation circuit 10 is set so as to output "rO" as 1. Furthermore, the reset control signal 11 and the reset signal 18 are ORLed by an OR circuit 12, and the result is outputted to the X coordinate counter 14. The X coordinate counter 14 is cleared when the reset signal 13 is rlJ.

Therefore, the X coordinate counter 7 and the X coordinate counter 14 receive not only the reset signal 8 from the control circuit 17 but also the switch 1
It is also cleared by turning on 8 and 8.

Therefore, if the X coordinate counter 7 is reset by turning on the switch 1, for example, the cursor can be accurately pointed only in the vertical direction, and by turning on the switch 8, the X coordinate counter 14 can be reset. By resetting, it is possible to point the cursor accurately only in the horizontal direction.

Furthermore, if both switches 1 and 8 are turned on and both the X coordinate counter 7 and the X coordinate counter 4 are reset,
Even if a roller or the like rotates, the amount of rotation is not counted.

Therefore, when the pointing device is used in a narrow space, it is possible to accurately move the curser without separating the rollers or the like from the contact surface.

<Effects of the Invention> As explained above, the present invention provides a reset switch for each of the X-coordinate and By turning on both reset switches,
Since all the counters are cleared, there are advantages such as the ability to smoothly move the cursor without removing the pointing device from the contact surface and reinstalling it, and without always taking it away from the contact surface.

[Brief explanation of the drawing]

ξ is a block diagram of a cursor control device according to an embodiment of the present invention. 1 is a switch, 3 is a reset signal generation circuit, 5 is an OR circuit, 7 is an X coordinate counter, 8 is a switch, 10 is a reset signal generation circuit, 12 is an OR circuit, 14 is a Y coordinate counter, and 17 is a control circuit.

Claims (1)

[Claims] X and Y coordinates of mobile cursor pointing device
an X-coordinate counter and a Y-coordinate counter that are cleared when the amount of movement in the coordinate direction is incremented or decremented and a reset signal is input;
a control circuit that receives a data output signal from the coordinate counter and outputs a reset signal; a switch that controls the reset signal to the X-coordinate counter; a switch that controls the reset signal to the Y-coordinate counter; and each of the switches. a reset signal generation circuit that generates a reset signal to the X-coordinate counter or the Y-coordinate counter;
A cursor control characterized by comprising an OR circuit that inputs a reset control signal from the reset signal generation circuit and a reset signal output from the control circuit and outputs a reset signal to an X coordinate counter or a Y coordinate counter. Device.