JPH05108261A - Coordinate input device - Google Patents

Abstract

PURPOSE:To exclude the correcting operation of minute deviation generated at the time of input operation where a mouse is manually moved in X-axis and Y-axis directions on a horizontal plane. CONSTITUTION:An inhibit switch 11 inhibits an X axis pulse. An inhibit switch 12 inhibits a Y axis pulse. An X axis grating detector 14 and a Y axis grating detector 15 detect the grating from a photosensor 13. An output control circuit 16 controls inhibition of output of X axis and Y axis pulses outputted from inhibit switches 11 and 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coordinate input device.

[0002]

2. Description of the Related Art A conventional technique will be described by taking an optical mouse as an example. FIG. 3 is a diagram showing a movement locus of a conventional optical mouse.

The optical mouse is composed of a mouse having a photo sensor and a mouse pad on which a lattice recognized by the photo sensor is engraved. When the optical mouse on the mouse pad is moved in a certain direction, the optical mouse recognizes the lattice of the mouse pad, and when passing the lattice, the movement is decomposed into the X-axis direction and the Y-axis direction, and the X-axis is decomposed. It outputs a direction pulse and a Y-axis direction pulse. As a result, pulses in the X-axis direction and the Y-axis direction that are proportional to the amount of movement of the mouse are output.

Conventionally, when the optical mouse is moved along the X-axis and the Y-axis in the horizontal plane, the coordinate input operation is performed manually, so that a slight deviation occurs as shown in FIG.

[0005]

In this conventional coordinate input device, a slight shift occurs in an input operation of manually moving in the X-axis and Y-axis directions on a horizontal plane, and a human burden is required to correct this shift. There is a drawback that it costs.

[0006]

A coordinate input device of the present invention comprises a coordinate input section which moves on a horizontal plane, and an inhibit switch which sets an inhibit for an X-axis coordinate value and a Y-axis coordinate value from this coordinate input section. And an output control circuit that inhibits the X-axis coordinate value and the Y-axis coordinate value according to instructions from these inhibit switches.

The coordinate input unit is an optical mouse,
It may be either a mechanical mouse or a tablet.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a control block diagram of an optical mouse showing an embodiment of a coordinate input device of the present invention, and FIGS. 2 (a) and 2 (b) are FIG.
FIG. 3 is a diagram for explaining before and after correction by the inhibit switch in FIG. 3, and FIG. 3 is a diagram showing a movement locus of the conventional optical mouse.

As shown in FIG. 1, the optical mouse of this embodiment has an inhibit switch 11 for setting an X-axis pulse inhibit, an inhibit switch 12 for setting a Y-axis pulse inhibit, and a photosensor 13 for detecting a lattice. And an X-axis grating detector 14 and a Y-axis grating detector 1
5, an output control circuit 16 that inhibits the output of X-axis and Y-axis pulses according to instructions from the inhibit switches 11 and 12, and a moving pulse generator 17. In this embodiment, the inhibit switches 11 and 12 are used.
The output pulse of the X-axis and the Y-axis can be inhibited by.

Next, the operation of this embodiment will be described. The operation when the optical mouse of this embodiment is moved horizontally will be described.

First, when moving in the X-axis direction on a horizontal plane as shown in FIG. 2 (a), the inhibit switch 1 is used.
Hold down 1 and press X on the optical mouse on the mouse pad.
When moved in parallel to the axial direction, the optical mouse recognizes the X-axis coordinate and the Y-axis coordinate by the lattice of the mouse pad by the reflected light of the light sent from the photo sensor 13, but the inhibit switch 11 is pressed. The output control circuit 16 brings the Y-axis coordinate grid detector 15 into the inactive state, and only the X-axis coordinate grid detector 14 generates an electric signal. Upon receiving the electric signal, the moving pulse generator 17 generates a moving pulse parallel to the X axis. As a result, the deviation is corrected as shown in FIG.

When moving in the Y-axis direction, if the optical mouse on the mouse pad is moved in parallel with the Y-axis direction while pressing the inhibit switch 12, the X-axis coordinate grid is obtained by the same operation as described above. The detector 14 becomes inactive, and only the Y coordinate grid detector 15 generates an electric signal, and the movement pulse generator 17 receives the electric signal and generates a movement pulse parallel to the Y axis.

Next, when a mechanical mouse is used instead of the optical mouse in the above embodiment, when the mechanical mouse is moved in the X-axis and Y-axis directions on the horizontal plane, the movement is mechanically detected. Therefore, when moving in the X-axis direction, the Y coordinate value is made inactive by the inhibit switch 11, and also when moving in the Y-axis direction, a moving pulse in which the X coordinate value is made inactive by the inhibit switch 12 is also output.

When a tablet is used instead of the optical mouse in the above-mentioned embodiment, when the tablet is moved in the X-axis or Y-axis direction on the horizontal plane, the movement is detected from the coordinate value. Therefore, when moving in the X-axis direction, the Y coordinate value is made inactive by the inhibit switch 11, and also when moving in the Y-axis direction, a moving pulse in which the X coordinate value is made inactive by the inhibit switch 12 is also output.

In other words, according to the present invention, it is possible to prevent a slight shift that occurs when a mouse or tablet is manually moved in the X-axis and Y-axis directions on a horizontal plane.
There will be no burden on human hands.

[0016]

As described above, according to the present invention, the coordinate input device is provided with the output control circuit which inhibits the output of the X-axis and Y-axis coordinate values, so that the correction operation at the time of coordinate input which is burdensome to humans can be performed. It has the effect that it can be resolved.

[Brief description of drawings]

FIG. 1 is a control block diagram of an optical mouse showing an embodiment of a coordinate input device of the present invention.

2A and 2B are views for explaining before and after correction by the inhibit switch in FIG.

FIG. 3 is a diagram showing a movement trajectory of a conventional optical mouse.

[Explanation of symbols]

 11 Inhibit Switch (X Axis) 12 Inhibit Switch (Y Axis) 13 Photosensor 14 X Axis Lattice Detector 15 Y Axis Lattice Detector 16 Output Control Circuit 17 Moving Pulse Generator

Claims (2)

[Claims] 1. A coordinate input section that moves on a horizontal plane, an inhibit switch that sets an inhibit for the X-axis coordinate value and the Y-axis coordinate value from the coordinate input section, and the X-axis according to instructions from these inhibit switches. A coordinate input device comprising: a coordinate value and an output control circuit that inhibits the Y-axis coordinate value. 2. The coordinate input device according to claim 1, wherein the coordinate input unit is one of an optical mouse, a mechanical mouse, and a tablet.