Personal security system network
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United States of America Patent
Stats
-
May 19, 1992
Grant Date -
N/A
app pub date -
Jul 5, 1991
filing date -
Jul 5, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A personal security system includes at least one movable transmitter adapted to produce an emergency signal transmission when activated and a plurality of transceivers adapted to receive emergency signal transmissions from the movable transmitter. The received strength of an emergency signal received by one of the transceivers is compared with the received signal strength of an emergency signal received by other of the transceivers, and an alarm signal is produced by a transceiver in response to receipt of a transmission whose signal strength is stronger than any other transmission signal strength to which it has been compared. The alarm signal may include a code identifying both the activated movable transmitter and the transceiver producing the alarm signal.
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Family
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