Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Patent
1995-01-20
1998-02-10
Wu, Xiao
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
178 18, G09G 500
Patent
active
057174326
ABSTRACT:
A signal input device which includes an operation panel having an input area in which data are input by touching the operation panel, a plurality of sensors located at different places on the operation panel, the sensors receiving vibrations propagated from a touched point on the operation panel, a detection circuit for detecting times at which the sensors receive the vibrations, an arithmetic means for identifying the position of the touched point, a memory means for storing numerical values whereby the input area is divided into a plurality of minor areas, and means for judging which minor areas the touched points belong to, on the basis of the arithmetic results of the numerical values and data about the positions of the touched points.
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Research Disclosure, No. 291, Jul. 1988, p. 494.
Ruediger W. Knodt, et al., "Hard Controls on touch panel surface", Xerox Disclosure Journal, vol. 13, No. 4, Aug. 1988, p. 195.
J.H. Dodge, et al., "Microcomputer Control of Copier", IBM Technical Disclosure Bulletin, vol. 24, No. 12, May 1982, pp. 6356-6359.
Anzai Shunju
Kubo Takashi
Matsuda Hideo
Miwa Yoshihisa
Ohgita Toshiki
Conlin David G.
Michaelis Brian L.
Neuner George W.
Sharp Kabushiki Kaisha
Wu Xiao
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