Input device

Details Input device Input device

1984-01-31

1985-07-16

Mayewsky, Volodymyr Y.

Electrical resistors

Plural resistance elements connected by a jumper or spacer

178 18, 219528, 219549, 219552, 200 86R, 338 69, 338 99, 338114, 338314, 338309, H01C 722

Patent

active

045299595

ABSTRACT:
An input device for use in a display unit serving as a terminal of a computer has first and second insulating sheets and an insulating spacer sandwiched between the first and second sheets. The first sheet has first terminal leads on its both ends, while the second sheet has second terminal leads which extend in perpendicular relation to the first terminal leads. The upper surface is covered with a flexible, insulating, protective sheet. The spacer includes lattice-like conductors and consists of a material having cells of gas and elasticity and flexibility such as silicone foam. A fixed voltage is alternately applied across both ends of the first sheet and across both ends of the second sheet. When the protective sheet is depressed at a point P as by a depression pen, the position of the point is measured and represented by means of X- and Y-coordinates.

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