Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2006-12-26
2006-12-26
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S156000, C345S157000, C345S174000, C345S179000, C178S018010, C178S018020, C178S018030, C178S018050, C178S019010
Reexamination Certificate
active
07154481
ABSTRACT:
A touch sensing method and a touch sensing device are described for sensing a location of a touch. When the touch sensing device is touched, a first conductive layer disposed on a supporting layer is deflected toward a second conductive layer. The touch location is determined by sensing the change in capacitance at the location of the touch. A change in capacitance at the touch location is sensed by driving one of the conductive layers with an electrical signal referenced to the other conductive layer and measuring the current flow between the conductive layers. The sensed change in capacitance is greater than a change in the external capacitance of the touch sensor.
REFERENCES:
patent: 4529968 (1985-07-01), Hilsum et al.
patent: 4675569 (1987-06-01), Bowman et al.
patent: 5149918 (1992-09-01), Kozik et al.
patent: 5488204 (1996-01-01), Mead et al.
patent: 5510813 (1996-04-01), Makinwa et al.
patent: 5579036 (1996-11-01), Yates, IV
patent: 5686705 (1997-11-01), Conroy et al.
patent: 5729312 (1998-03-01), Yamagishi et al.
patent: 5738934 (1998-04-01), Jones
patent: 5790107 (1998-08-01), Kasser et al.
patent: 5942733 (1999-08-01), Allen et al.
patent: 5945980 (1999-08-01), Moissev et al.
patent: 5983727 (1999-11-01), Wellman et al.
patent: 6002389 (1999-12-01), Kasser
patent: 6104534 (2000-08-01), Ohta et al.
patent: 6518091 (2003-02-01), Haba
patent: 2002/0171610 (2002-11-01), Siwinski et al.
patent: 2003/0054878 (2003-03-01), Benoy et al.
patent: 2001-228975 (2001-08-01), None
Bottari Frank J.
Chernefsky Anthony F.
Cordeiro Craig A.
Cross Elisa M.
Kardauskas Michael J.
3M Innovative Properties Company
Hjerpe Richard
Pechman Robert J.
Shapiro Leonid
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