Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for crt display
Reexamination Certificate
2006-11-28
2006-11-28
Lefkowitz, Sumati (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for crt display
C345S181000, C345S182000, C345S183000, C345S156000, C345S157000, C345S158000, C345S179000, C356S003000, C356S003010, C356S614000, C356S620000, C356S621000, C356S622000, C356S623000
Reexamination Certificate
active
07142198
ABSTRACT:
A remote pointing apparatus including a remote control that generates an optical signal that is periodically expanded and/or reduced around the origin and an optical sensor that detects whether the optical signal is received, and a remote pointing method therefor. The remote pointing method includes projecting an optical signal that is periodically expanded and/or reduced around an origin; detecting whether the optical signal is received using a plurality of optical sensors that are two-dimensionally disposed; and detecting the position of the origin, which exists within a position recognition range including at least a polygon having the optical sensors as vertexes, based on the results of detection of the optical sensors. Since the remote pointing apparatus and method do not need a light receiving panel that is installed to fully cover a display screen or installed in vertical and horizontal directions of the display panel in order to receive a laser beam, a manufacturing cost thereof can be reduced.
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Beck Alexander S.
Lefkowitz Sumati
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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