Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Reexamination Certificate
2007-01-02
2007-01-02
Wong, Albert K. (Department: 2612)
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
C345S168000, C340S014100
Reexamination Certificate
active
10888666
ABSTRACT:
An improved key matrix scanning technique conducts a first pre-scan on a first array of connections in a key matrix to identify any activated keys or buttons associated with the first array. A second sub-scan is conducted on a second array of connections in the key matrix but only for the connections in the first array that are detected as having activated keys.
REFERENCES:
patent: 5274371 (1993-12-01), Yang et al.
patent: 5872561 (1999-02-01), Figie et al.
Asbury Ray
Wright David G.
Cypress Semiconductor Corporation
Wong Albert K.
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