JPS63211018A - Coordinate input device - Google Patents

Abstract

PURPOSE:To enable large coordinate movement by an easy operation by providing a mouse for the coordinate input of a personal computer with a memory which stores a movement quantity and a comparing circuit which compares a current movement quantity with the movement quantity in the memory according to the operation of a switch and outputs a larger value. CONSTITUTION:When an operator moves the mouse 1, a sensor 3 detects its movement quantity, which is digitized by an A/D converting circuit 4 and outputted to a variation quantity extracting circuit 5. The circuit 5 detects the movement quantity of the mouse from the data of the converting circuit 4 and outputs it to a comparison control circuit 6. When a repetition switch 8 is off in this state, the output of the circuit 5 is inputted to the personal computer as it is. When the switch 8 is turned on, on the other hand, the circuit 6 compares the current movement quantity with the last movement quantity stored in the memory 7 and outputs a larger value. Consequently, the movement quantity in the memory 7 is outputted and the mouse maintains the movement as long as the switch 8, so large coordinate movement is enabled by the simple operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for inputting coordinates into a personal computer or the like.

[Conventional technology]

Conventionally, a mouse has been widely used as this type of coordinate input device. As shown in FIG. 4, the conventional mouse includes a sensor 3, an analog/digital (A/D) conversion circuit 4, and a variation extraction circuit 5. When the mouse is moved, for example, on a desk by touching the desk, the sensor 3 converts this movement into an electrical signal and outputs it to the A/D conversion circuit 4.

The A/D conversion circuit 4 digitizes the signal from the sensor 3, detects the amount of mouse movement and further the direction of movement, and outputs it to the change amount extraction circuit 5. The change amount extraction circuit 5 extracts the amount of change in the position of the mouse based on the data from the A/D conversion circuit 4, outputs it to the cable 2, and sends it to a personal computer or the like.

When the operator moves this mouse on a desk, for example, the sensor 3 converts this movement into an electrical signal, and the A/D conversion circuit 4 converts this movement into an electrical signal.
digitizes the output to detect the amount and direction of movement. The change amount extraction circuit 5 extracts the amount of change in the mouse position based on the data from the A/D conversion circuit 4, and outputs it to a personal computer or the like.

On the other hand, for example, a predetermined marker is displayed on a display device of a computer, and the computer moves this marker in accordance with the movement of the mouse based on the amount of change sent from the mouse. This allows the operator to specify coordinates on the screen of the display device.

[Problem that the invention seeks to solve]

By the way, when moving the marker on the screen by moving the mouse, if the distance to move the marker is large, the operator needs to repeat the mouse movement operation many times. That is, move the mouse from point A to point B on the desk while touching the desk, then release the mouse from the desk,
The user must repeat the operation of returning the mouse to the original point A so that the sensor does not detect the movement, and then bringing the mouse into contact with the desk again to move the mouse to point B.

An object of the present invention is to provide a coordinate input device that eliminates such inconvenience and allows large coordinate movements to be performed with simple operations.

[Means for solving problems]

The present invention provides a coordinate input device including a sensor that detects movement and outputs an electric signal thereof, and a change amount extraction circuit that extracts a change amount in position based on the signal from the sensor, the change amount extraction circuit a memory for storing the amount of change extracted by the processor, a switch for instructing operation or non-operation, and a comparison control circuit, and the comparison control circuit stores the amount of change from the amount of change extraction circuit and the memory. Comparing means for comparing the amount of change stored in the memory and outputting the larger amount of change; memory clearing means for clearing the contents of the memory when the switch instructs operation; and memory clearing means for clearing the contents of the memory when the switch instructs operation. When the comparison means outputs the amount of change as an output signal of the coordinate input device, the amount of change is simultaneously stored in the memory, and when the switch instructs non-operation, the amount of change extracted by the amount of change extraction circuit is outputted as an output signal of the coordinate input device. It is characterized by comprising a switching means for outputting as an output signal of the coordinate input device.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings. In the following, a case will be described in which the present invention is applied to a mouse as a coordinate input device.

FIG. 1 shows the appearance of this embodiment. The main body 1 is provided with a repeat switch 8. A cable 2 is used to send the amount of change in position detected by the mouse to a personal computer or the like.

FIG. 2 shows a functional block diagram of this mouse.

The sensor 3 converts mouse movement into an electrical signal and outputs it to the A/D conversion circuit 4. The A/D conversion circuit 4 digitizes the signal from the sensor 3, detects the amount of mouse movement and further the direction of movement, and outputs it to the change amount extraction circuit 5. The change amount extraction circuit 5 extracts the change amount of the mouse position based on the data from the A/D conversion circuit, and outputs it to the comparison control circuit 6. The memory 7 is for storing the amount of change extracted by the amount of change extraction circuit 5, and the writing/output is performed by the comparison control circuit 6. Instructs operation/non-operation.

Next, the comparison control circuit 6 will be explained using the functional block diagram shown in FIG. The comparison circuit 61 compares the amount of change from the amount of change extraction circuit 5 and the amount of change stored in the memory using their absolute values, and outputs the larger amount of change. In the memory clear circuit 62, the switch 8 is repeatedly turned on, and the contents of the stop memory 7 whose operation has been instructed are cleared.

The switching circuit 63 outputs the amount of change outputted from the comparison circuit 61 as an output signal of this mouse when the repeat switch instructs operation, and simultaneously writes this amount of change in the memory 7.

On the other hand, when the repeat switch 8 is off and instructs non-operation, the amount of change from the amount of change extraction circuit 5 is directly output to the cable 2 as an output signal of this mouse.

Next, the operation will be explained. First, when the repeat switch 8 is off, when the operator moves the mouse, the sensor 3 electrically detects the movement of the mouse and outputs a signal.

The A/D conversion circuit 4 digitizes this signal, detects the amount of movement of the mouse and further the direction of movement, and outputs the amount of change extraction circuit 5.
Output to.

The change amount extraction circuit 5 extracts the change amount of the mouse position based on the data from the A/D conversion circuit, and outputs it to the comparison control circuit 6. Since the repetition switch 8 is turned off, the switching circuit 63 of the comparison control circuit 6 outputs the amount of change from the amount of change extraction circuit 5 as the output signal of the mouse to the cable 2.
Output to.

On the other hand, when the repeat switch 8 is turned on by the operator, the memory clear circuit 62 of the comparison control circuit 6 first clears the contents of the memory 7. Then, the comparison circuit 61 compares the amount of change from the amount of change extraction circuit 5 and the amount of change stored in the memory, and outputs the larger amount of change. Since the contents of the memory 7 have been cleared at this stage, the amount of change from the amount of change extraction circuit 5 is output. Switching circuit 63
outputs this output to the cable 2 and simultaneously writes it into the memory 7. When the repeat switch 8 remains on, the comparison circuit 61 compares the amount of change from the amount of change extraction circuit 5 with the amount stored in the memory 7. The amount of change is compared again, and the one with the larger absolute value is output. The switching circuit 63 outputs this output to the cable 2 and writes it into the memory 7 at the same time. This operation is repeated until the repeat switch 8 is turned off.

Therefore, even if the operator holds the mouse still, after moving the mouse partially as an initial movement, as long as the switch 8 is repeatedly turned on, the amount of change stored in the memory 7 will be output, and the mouse will continue to move. The same state as in the previous case will be maintained.

〔Effect of the invention〕

As explained above, the coordinate input device of the present invention includes a sensor that detects movement and outputs an electric signal thereof, and a coordinate change extraction circuit that extracts the amount of change in position based on the signal from the sensor. The input device includes a memory for storing the amount of change extracted by the amount of change extraction circuit, and a comparison control circuit that reads out the amount of change in position from this memory in response to the operation of a switch and outputs it.

Therefore, even if the operator holds the coordinate input device stationary, the amount of change stored in the memory is output by operating the switch.
This is the same state as when the coordinate input device is moved. Therefore, large coordinate movements can be performed with simple operations.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
FIG. 3 is a functional block diagram showing a part of the embodiment shown in FIG. 1. FIG. 4 is a functional block diagram showing a conventional mouse. l...Body 2...Cable 3...Sensor 4...A/D conversion circuit 5...Change amount extraction circuit 6...Comparison control Circuit 7...Memory 8...Repetition switch 61...Comparison circuit 62...Memory clear circuit 63...Switching circuit

Claims (1)

[Claims] (1) In a coordinate input device comprising a sensor that detects movement and outputs an electric signal thereof, and a change amount extraction circuit that extracts a change amount in position based on the signal from the sensor, the change amount extraction circuit comprises: A memory for storing the extracted amount of change, a switch for instructing operation or non-operation, and a comparison control circuit, and the comparison control circuit stores the amount of change from the amount of change extraction circuit and the memory. Comparing means for comparing the stored amount of change and outputting the larger amount of change; Memory clearing means for clearing the contents of the memory when the switch instructs operation; and memory clearing means for clearing the contents of the memory when the switch instructs operation. When the amount of change outputted by the comparing means is outputted as an output signal of the coordinate input device, the amount of change is simultaneously stored in the memory, and when the switch instructs non-operation, the amount of change extracted by the amount of change extraction circuit is stored in the memory. A coordinate input device comprising: switching means for outputting an output signal of the coordinate input device.