Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Patent
1997-01-24
1998-10-06
Chow, Dennis-Doon
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
178 18, G09G 500
Patent
active
058184309
ABSTRACT:
An touch screen of the voltage-divider type is provided which includes two substrates spaced apart from each other by a gap, each substrate including a region formed of conductive material formed in overlapping relationship to each other. A pair of strips formed from a resistive material is coupled to opposed edges of each conductive region such that the resistance strips of the first substrate extend in a substantially perpendicular direction to the resistance strips of said the second substrate. A circuit is provided which applies a first reference voltage across the resistance strips of the first substrate, and subsequently applies a second reference voltage across the resistance strips of the second substrate.
REFERENCES:
patent: 3632874 (1972-01-01), Malavard et al.
patent: 3798370 (1974-03-01), Hurst
patent: 3911215 (1975-10-01), Hurst et al.
patent: 4821029 (1989-04-01), Logan et al.
patent: 4846694 (1989-07-01), Erhardt
patent: 4897511 (1990-01-01), Italy et al.
patent: 4899292 (1990-02-01), Montagna et al.
patent: 4914624 (1990-04-01), Dunthorn
patent: 4928094 (1990-05-01), Smith
patent: 4990725 (1991-02-01), Mizzi
patent: 5553296 (1996-09-01), Forrest et al.
patent: 5668353 (1997-09-01), Matsuda et al.
C.A.M. Graphics Co., Inc.
Chow Dennis-Doon
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