Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2008-04-08
2008-04-08
Dharia, Prabodh (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S174000, C345S171000, C345S172000, C345S169000
Reexamination Certificate
active
07355593
ABSTRACT:
A touch system comprises overlapping coordinate input sub-regions defining a generally contiguous input surface. Each coordinate input sub-region generates pointer coordinate data in response to pointer contacts thereon. When a pointer contact is made on a region of a coordinate input sub-region that overlaps with an adjacent coordinate input sub-region, each overlapping coordinate input sub-region processes acquired images to derive pointer data and triangulates the position of the pointer using the derived pointer data. Thereafter, the triangulated positions generated by the overlapping coordinate input sub-regions are processed in accordance with defined logic thereby to determine the position of the pointer contact relative to the touch surface.
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Hill Douglas B.
Holmgren David E.
Su Scott Yu Tseng
Dharia Prabodh
Katten Muchin & Rosenman LLP
Smart Technologies Inc.
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