JPH06110604A - Pointing device - Google Patents

Abstract

PURPOSE:To efficiently and more easily use the pointing device. CONSTITUTION:A moving amount pulse generated and outputted by the pointing device is suitably and easily provided as a moving amount pulse corresponding to the purpose by adding a double pulse fluctuator 3, decrease pulse fluctuator 4, switch 6 and selector 5 and thus, the pointing device can be efficiently and easily utilized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pointing device, and more particularly to a pointing device used as an input device of a computer terminal device.

[0002]

2. Description of the Related Art A conventional pointing device has a constant frequency oscillator as seen in a mouse,
The ball inside the mouse rotates the encoder and sends the generated pulse to the upper terminal device, and the upper terminal device determines the amount of movement of the mouse by counting the number of pulses sent.

That is, the mouse is a pulse generator that generates a constant frequency only during the moving time of the mouse.

[0004]

In the conventional pointing device such as the mouse, since the movement amount and the number of generated pulses are always in direct proportion, the size of the display device and the display space of the terminal device have increased in recent years. In response to the enlargement, the mouse cannot be moved from one end of the display space to one end of the diagonal unless it is moved greatly. If this applies to the environment in which the pointing device is used, for example, it suffices if there is sufficient space on the desk where the mouse is used. However, in reality, since there are other devices such as a keyboard, a sufficient space cannot be secured, and the mouse is moved in 1 to 3 times.

If the number of pulses generated with respect to the amount of movement of the mouse is large, the number of pulses generated will be large even if the mouse is moved a little when drawing a detailed drawing or picture in a CAD system or graphic system. It's hard to draw.

[0006]

The pointing device of the present invention is characterized by comprising a doubling pulse variator for doubling the reference pulse in order to increase the movement amount of the pointing device.

The pointing device of the present invention is designed to reduce the amount of movement of the pointing device.
It is characterized by comprising a reducing pulse variator for reducing the reference pulse.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. The role of a pointing device in a computer terminal or the like is to input coordinates of a position such as a cursor shown on a display device such as a CRT, that is, a position on a plane as secondary coordinates. Therefore, in order to detect the displacement amount of the pointing device when it is moved and to transmit it to the outside as an output, one function is provided from the detection to the output in two orthogonal directions. is necessary.

FIG. 1 shows one of the mechanisms from the detection to the output. That is, an actual pointing device may use two mechanisms shown in FIG. 1 and dispose the movement amount sensor 8 in two directions in which the movement amounts on the plane are orthogonal to each other.

When the pointing device is moved on a plane, the ball 7 is rotated by the contact with the plane.
The movement amount sensor 8 captures the rotation of the ball 7 as an electric signal, and the encoder 2 encodes the movement amount pulse indicating the movement amount based on the reference pulse generated from the oscillator 1. The movement amount pulse is always supplied to the double pulse variator 3 and the decreasing pulse variator 4 and is output as a doubled pulse and a reduced pulse.

The operator of the pointing device usually operates a switch 6 attached to the pointing device.
Does the operation unconsciously. At this time, depending on the state of the switch 6, the selector 5 selects the movement amount pulse as generated by the encoder 2 as the output of the pointing device.

Next, it is assumed that the operator wants to move from one point in the large display space of the terminal to another point having a large movement amount by using the pointing device.

The operator changes the switch 6 so that a doubling pulse is output. The switch 6 causes the selector 5 to switch from the output of the movement amount pulse to the output of the doubled pulse. By this operation, the pointing device outputs a large amount of movement even if the amount of actual movement of the pointing device by the operator is small.

On the other hand, assume a case where it is desired to move from one point to another point having a very small amount of movement.

The operator changes the switch 6 so that a decreasing pulse is output. The switch 6 switches the selector 5 to the output of a decreasing pulse. By this operation, the pointing device outputs a small amount of movement even if the amount of movement of the pointing device by the operator is large.

[0017]

As described above, according to the present invention, even if the amount of movement of the pointing device moved by the operator is constant, the addition of the doubling pulse variator meets the purpose of the operator. It is possible to output a larger movement amount pulse, and it is possible to easily move from one point on a large space to another point far away.

Further, by adding a decreasing pulse variator, it becomes possible to output a smaller movement amount pulse that suits the purpose of the operator, and one point in a small space and another point close to it There is also an effect that it can be easily distinguished from one point.

Since the switch and the selector interlocked with the switch are provided, the operator needs them.
There is an effect that a movement amount pulse suitable for each occasion can be appropriately obtained.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Oscillator 2 Encoder 3 Double pulse variator 4 Decrease pulse variator 5 Selector 6 Switch 7 Ball 8 Movement amount sensor

Claims (3)

[Claims] 1. A pointing pulse variator for doubling a reference pulse in order to increase the amount of movement of the pointing device.
device. 2. A pointing pulse variator for reducing the reference pulse of the pointing device in order to reduce the amount of movement of the pointing device.
device. 3. A doubling pulse variator, a decreasing pulse variator that decreases the reference pulse and outputs a decreasing pulse, and selects one of the doubling pulse and the decreasing pulse output from the doubling pulse variator. 2. The pointing device according to claim 1, further comprising switch means for outputting.