Low-power switch state detection circuit and method and...

Details Low-power switch state detection circuit and method and... Low-power switch state detection circuit and method and...

2005-05-06

2010-11-16

Natalini, Jeff (Department: 2831)

Electricity: measuring and testing

Electromechanical switching device

Relay

C324S424000, C307S115000

Reexamination Certificate

active

07834634

ABSTRACT:
A circuit for, and method of, detecting a signal level on a node and a mobile telephone device incorporating the circuit or the method. In one embodiment, the circuit includes: (1) a switch coupled between a voltage source and the node, (2) a pulse generator coupled to the switch and configured to generate a pulse to control the switch and (3) a detection circuit coupled to the node and configured to detect a signal level at the node on closure of the switch.

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patent: 6969978 (2005-11-01), Dening
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patent: 2004/0189330 (2004-09-01), Herb et al.
patent: 2005/0249354 (2005-11-01), Patino et al.
patent: 2006/0103435 (2006-05-01), Chen et al.

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