JPH0535401A - Position input device - Google Patents

Abstract

PURPOSE:To reduce the size of the position input device so that the device can be hand-held and operated by calculating a movement quantity from the continuous coordinate output of a touch panel, and further obtaining an output to be moved while the magnifications are varied. CONSTITUTION:The magnifications in an X-axial and a Y-axial direction are set by variable resistors VR1 and VR2 of a magnification setting part 4 in consideration of desired movement width of a cursor on a CRT. Then a coordinate value output part 3 outputs contacted X-Y coordinate data according to movement. Then a coordinate value difference calculation part 5 calculates the differences of the 1st coordinate data of a series of coordinate data from subsequent coordinate data, multiplies the X-coordinate value difference and Y-coordinate value difference by the X-axial and Y-axial magnifications, and outputs the results. This processing is performed by receiving the output of the coordinate value output part 3 at a certain period. Then the output of the coordinate value difference calculation part 5 is outputted through a data transmission part 6 at each time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position input device, and more particularly to a position input device for moving a cursor on a display screen to specify an input position.

[0002]

2. Description of the Related Art Conventionally, in this type of position input device, a plurality of coils are laid inside the surface in a grid pattern, and the surface is touched with a special pen containing an electromagnet to change the magnetic field by electromagnetic induction. A tablet system that reads and determines the coordinates,
A mouse method is widely used in which a box containing a ball is moved on a flat surface such as a desk and the position is detected from the rotation of the ball.

[0003]

The conventional position input device described above requires the use of a special pen or the like for determining the coordinates in the tablet system, or the flat position or space in the mouse system. It has the disadvantage that it is necessary and sometimes inconvenient.

[0004]

A position input device of the present invention is a position input device for moving a cursor on a display screen to specify an input position, and a signal is input from an XY coordinate position on the surface of a finger touching the position. , A coordinate value output unit for outputting the X coordinate value and the Y coordinate value from the XY coordinate position of the signal output from the touch panel, and the respective magnifications are set corresponding to the XY coordinates. Magnification setting section,
The coordinate value output unit multiplies each of the coordinate value differences between the coordinate value output first and the coordinate value output subsequently of the coordinate values continuously output by each magnification set by the magnification setting unit. It is configured by including a coordinate value difference calculation unit for outputting, a plurality of keys, and a data transmission unit for transmitting the output of each of these keys and the output of the coordinate value difference calculation unit.

[0005]

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 embodiment of FIG. 1 comprises a touch panel 2, a coordinate value output unit 3, a magnification setting unit 4, a coordinate value difference calculation unit 5, a data transmission unit 6, a key K1 and a key K2. The touch panel 2 is a panel in which touch sensors are arranged in a grid on the surface of a transparent plate, and by touching the surface with a finger or the like, output can be obtained at positions on the X-axis and Y-axis of the side surface corresponding to the contact position. Is. The coordinate value output unit 3 is the X of the touch panel 2.
The outputs on the axes and the Y-axis are received, and the outputs indicating the respective positions are converted into X-coordinate value and Y-coordinate value data. The magnification setting unit 4 includes two variable resistors VR1 and VR2 for setting a value for multiplying each coordinate value difference calculated by the coordinate value difference calculating unit 5 by a magnification. When the finger touches the touch panel 2 and moves, the coordinate value difference calculation unit 5 uses the XY coordinate value first output from the coordinate value output unit 3 as a reference, and the XY coordinate value output thereafter. Is calculated, and the change is multiplied by each of the magnifications set by the magnification setting unit 4 and output. Through this processing, the movement amount of the finger is output as the change value of the X axis and the Y axis at the desired magnification. Keys K1 and K2 are keys for notifying the host device of determination and cancellation of coordinate change values.

FIG. 2 is an external plan view of the embodiment shown in FIG. 1, in which a transparent touch panel 2 is attached to the position input device 1,
It is possible to see through the figure placed on the back side, and it is easy to obtain the desired line segment output by tracing over the figure. Variable resistors VR1 and K2 are provided along the two side surfaces of the touch panel 2 and are connected to the host device by a cable.

With the above configuration, first, the variable resistors VR1 and VR2 are used to set the magnifications in the X-axis direction and the Y-axis direction, respectively, in consideration of the desired movement width of the cursor on the CRT of the host device. Next, a finger is brought into contact with the surface of the touch panel 2 to move in the desired direction. The coordinate value output unit 3 outputs the touched XY coordinate data as it moves. The coordinate value difference calculation unit 5 takes the difference from the subsequent coordinate data based on the first coordinate data of the series of coordinate data, and determines the X coordinate direction difference and the Y coordinate value difference respectively in the X axis direction and the Y axis direction. Multiply by the magnification with the direction and output. This process is carried out by fetching the output from the coordinate value output unit 3 at a constant cycle, but when there is no fetch, the first coordinate data as a reference is also erased, and the first coordinate value data fetched next is rewritten. As a reference to
Perform processing. The output from the coordinate value difference calculation unit 5 is output to the host device via the data transmission unit 6 each time it is output.

[0009]

As described above, according to the present invention, since the movement amount is calculated from the continuous coordinate output of the touch panel and the output to be moved is obtained by arbitrarily changing the magnification, it can be held in the hand and operated. Moreover, it is possible to provide a position input device which can be configured in a small size and which is easy to use without requiring a special place.

[Brief description of drawings]

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

FIG. 2 is a plan view of the appearance of the embodiment shown in FIG.

[Explanation of Codes] 2 Touch panel 3 Coordinate value output unit 4 Magnification setting unit 5 Coordinate value difference calculation unit 6 Data transmission unit K1, K2 keys

Claims (1)

Claim: What is claimed is: 1. A position input device for moving a cursor on a display screen to specify an input position, and a touch panel for outputting a signal from an XY coordinate position on a surface of a finger touching the touch panel.
A coordinate value output unit that outputs an X coordinate value and a Y coordinate value from an XY coordinate position of a signal output from the touch panel; a magnification setting unit that sets respective magnifications corresponding to the XY coordinates; The coordinate value output unit multiplies each of the coordinate value differences between the coordinate value output first and the coordinate value output subsequently of the coordinate values continuously output by each magnification set by the magnification setting unit and outputs the result. A position input device, comprising: a coordinate value difference calculation unit, a plurality of keys, and a data transmission unit that outputs an output of each of these keys and an output of the coordinate value difference calculation unit.