Data processing device comprising a touch screen and a force sen

Details Data processing device comprising a touch screen and a force sen Data processing device comprising a touch screen and a force sen

1994-08-12

1996-04-23

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345104, 345179, 341 33, G09G 302

Patent

active

055108130

ABSTRACT:
A data processing device comprises a touch screen with a touch position sensor. The position sensor is suitable to detect a touch position on the screen from a change in a current pattern in a conductive panel. The device also comprises a touch force sensor provided with a second conductive panel which extends substantially parallel to the touch screen. The screen is at least partly movable relative to the second panel in a direction transversely of the second panel. The force sensor is suitable to determine a force from a capacitance value between the touch screen and the second panel. The device is suitable for the combined processing of the position and force detected in response to touching.

REFERENCES:
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patent: 4475235 (1984-10-01), Graham
patent: 4723836 (1988-02-01), Kone et al.
patent: 4731694 (1988-03-01), Grabner et al.
patent: 4740781 (1988-04-01), Brown
patent: 4853498 (1989-08-01), Meadows et al.
patent: 4961968 (1989-07-01), Hilsum et al.
patent: 5119079 (1992-06-01), Hube et al.
patent: 5231381 (1993-07-01), Duwaer
Research Disclosure, No. 302, Jun. 1989, Havant GB p. 456 RD30289-Touch Screen With Combined Force and Position Sensing.

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