System and method of locating wireless devices
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United States of America Patent
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-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Sep 17, 1996
filing date -
Sep 17, 1996
priority date (Note) -
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Abstract
A system and method of locating a wireless device which relies on signal strength measurements and the known positions of receiving sensors. The system includes a number of transceivers each including a transmitter which transmits a first signal to the wireless device, a plurality of receivers including a plurality of sensors and at least one signal strength determining circuit for determining signal strengths of second signals received by the sensors, and a control circuit for controlling transmission of the first signal and reception of the second signals. A storage medium contains the locations for each of the sensors. A computer coupled to the control circuit instructs the control circuit to transmit the first signal and determines a location of the wireless device from the signal strengths and from the locations of the sensors.
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