Communications: electrical – Continuously variable indicating – With meter reading
Patent
1996-09-17
2000-01-04
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
342450, 342451, 235383, 235385, G08B 522
Patent
active
060114878
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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Horabik Michael
Jeanglaude Jean B.
Martin Paul W.
NCR Corporation
Priest Peter H.
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