Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Reexamination Certificate
2003-10-03
2009-02-24
Lefkowitz, Sumati (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
C341S022000, C341S026000, C341S034000, C400S472000
Reexamination Certificate
active
07495657
ABSTRACT:
A keyboard includes a key module comprising at least one key cell with an output end which is selectively connected to a first voltage or a second voltage, a detect circuit electrically connected to the output end of the key cell for generating a control signal whenever the voltage on the output end of the key cell becomes the second voltage or the first voltage, a parallel-to-serial register electrically connected to the output end of the key module, and a processor electrically connected to the parallel-to-serial register and the detect circuit for controlling the parallel-to-serial register according to the control signal.
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Beck Alexander S.
Hsu Winston
HTC Corporation
Lefkowitz Sumati
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