JPS60160431A - Coordinate input device - Google Patents

Abstract

PURPOSE:To set a coordinate input device into a keyboard by providing an operation means for indicated positions which is movable on the radius axis of each arm at the cross position between arms which are supported freely turnably at two separate points and can detect a sloping angle. CONSTITUTION:The lengthwise grooves 1a and 2a are formed to arms 1 and 2 which are supported freely turnably at two separate points A and B. The pin parts (not shown in the figure) of an operation knob 3 are inserted to both grooves 1a and 2a, and arms 1 and 2 cross each other at a proper position. Then sloping angle detecting volumes 4 and 5 for arms 1 and 2 are provided at both points A and B. The resistance value outputs of volumes 4 and 5 are supplied to a coordinate conversion circuit 8 via A/D converters 6 and 7. Then the sloping angles of both arms are converted into an orthogonal coordinate system and outputted outside. This simplifies the structure of a coordinate input device without roquring easy handling.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a manually-indicated coordinate input device.

<Prior Art> Currently, many coordinate input devices have been devised, but among them, tablets and mice cannot be incorporated into the keyboard of a display device.

Joysticks and trackballs essentially move on a curved surface, which impairs the sense of movement on a plane and does not provide a sense of position on a plane.
It has drawbacks such as being difficult to use and requiring some experience to use.

OBJECTS OF THE INVENTION The present invention provides a coordinate input device that can be incorporated into the keyboard of a display device and requires no experience to use.

<Example> An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a top view of this device, FIG. 2 shows a schematic perspective view from the side, and FIG. 3 shows an electrical block configuration diagram.

2 and 2 are arms rotatably supported at two distant points A and B, respectively; 3 is an operating knob at a designated position corresponding to the intersection of arms I and 2; That is, arms 1 and 2 each have a groove 1a in the length direction (on the radial axis).
, 2a, and the pin portion of the operating knob 3 is formed with both i'141a.

,? A, and then arm I and arm 2 are crossed at an appropriate position. In addition, the operation knob 3 is connected to these grooves 1a and 2.
each can be freely moved on the radial axis by a,
The intersection position can be moved arbitrarily.

Polymers (variable resistors) 4 and 5 are used to detect the inclination angle at the support position as the arms 1 and 2 rotate. 6 and 7 are A/Ds that convert resistance value output into digital data.
Converge 8 is a coordinate conversion circuit for an orthogonal coordinate system, which further converts the above-mentioned inclination angle to an orthogonal coordinate system and outputs it to the outside.

When the operating knob 3 is directed to a predetermined position, the volumes 4.5 take on values corresponding to the inclination angles of the arms 1 and 2, respectively. Now, as shown in Figure 4, the inclination angle of the deme 1°2 is α,
β, and the distance between the support positions of arms 1 and 2 is l, then the coordinates (x, y) of position C of operating arm 3 can be expressed as 5 inches (α 10 p) by α and β. In this way, the position of the operating knob 3 can be expressed by the inclination angles (α, β) of the support positions of the arms 1 and 2, and conversion to an orthogonal coordinate system can be performed very easily.

<Effects of the Invention> As described above, the present invention has a simple structure, can be incorporated into the keyboard of a display device, and does not require any experience to use.
A useful coordinate input device with an excellent sense of plane movement can be provided.

[Brief explanation of the drawing]

Fig. 1 is a top view showing an embodiment of the present invention, Fig. 2 is a schematic perspective view seen from the side, Fig. 3 is an electrical block configuration diagram, and Fig. 4 is an explanatory diagram of conversion to an orthogonal coordinate system. It is. ■・2...Arm, 8...Operation knob, 4/5
...Volume. Agent Patent attorney Aihiko Fukushi (and 2 others) 1st floor, 2nd floor, 3t2, 4th floor, 4th floor

Claims (1)

[Claims] 1. An arm rotatably supported at two separate points, an operating means at a pointing position located at the intersection of the two arms and movable on the radial axis of each arm, A coordinate input device comprising: means for detecting inclination angles of the respective arms according to positions indicated by the operating means when in the supporting position.