Digital wake-up signal from switch transition of two analog...

Details Digital wake-up signal from switch transition of two analog... Digital wake-up signal from switch transition of two analog...

2007-04-17

2007-04-17

Elamin, A. (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S310000, C713S330000, C200S061270, C200S237000, C200S550000, C200S563000, C338S172000, C338S190000, C338S200000, C338S201000

Reexamination Certificate

active

10748972

ABSTRACT:
A digital wake-up signal is generated from an analog switch on a printed circuit board in which a ground trace and multiple conductive switch traces are bridged by a moveable contactor responsive to movement of an actuator. A resistor network is coupled to the switch traces and alternatingly connects the switch traces to two outputs to generate distinct analog voltage outputs. A logic gate determines when both outputs are at the same voltage corresponding to the contactor engaged between two adjacent switch traces and generates a wake-up command signal.

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Motorola, Inc.,Motorola Semiconductor Technical Data, No. 33889, Rev. 5.91, Apr. 1, 2003.

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