Infrared link for security system
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United States of America Patent
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-
Apr 17, 2001
Grant Date -
N/A
app pub date -
Feb 6, 1997
filing date -
Feb 7, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An infrared communication system provides a communication link between a stand-alone electrically controlled lock and a centralized control system. A module comprising a transmitter and a receiver is mounted in fixed position to the door frame. A second module comprising a transmitter and a receiver is mounted to the door.
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