Garage door opener

Details Garage door opener Garage door opener

2006-09-12

2006-09-12

Garber, Wendy R. (Department: 2612)

Communications: electrical

Selective

Intelligence comparison for controlling

C340S005700, C340S005800

Reexamination Certificate

active

07106170

ABSTRACT:
A garage door opener comprises at least two radio frequency transmitters, a radio frequency receiver, at least two memories, and a processor. Each memory corresponds to one radio frequency transmitter and stores a code of a corresponding radio frequency transmitter. The radio frequency transmitter is connected to the processor by electrical connectors. It is impossible to mis-study to the other radio frequency transmitter because the processor in the host computer has no program mode. Since each memory corresponds to one radio frequency transmitter, when one radio frequency transmitter is lost, a corresponding memory is eliminated to make the lost radio frequency transmitter disuse.

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patent: 5650774 (1997-07-01), Drori
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patent: 6728351 (2004-04-01), Ahlstrom et al.
patent: 6903650 (2005-06-01), Murray
patent: 6941136 (2005-09-01), Study et al.
patent: 2002/0067826 (2002-06-01), King
patent: 101 06 956 (2001-02-01), None
patent: WO 02/075669 (2002-09-01), None

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