Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-09-19
2006-09-19
Feild, Joseph (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456100, C455S456500, C455S456600, C342S457000, C370S328000
Reexamination Certificate
active
07110779
ABSTRACT:
A wireless communications system may include a plurality of wireless communications devices and a wireless device locator. More particularly, the wireless device locator may include at least one antenna and a transceiver connected thereto, and a controller for cooperating with the transceiver for transmitting a plurality of location finding signals to a target wireless communications device from among the plurality thereof. The target device may transmit a respective reply signal for each of the location finding signals. Additionally, the controller may also cooperate with the transceiver for receiving the reply signals, and it may determine a propagation delay associated with the transmission of each location finding signal and the respective reply signal therefor based upon a known device latency of the target device. As such, the controller may estimate a range to the target device based upon a plurality of determined propagation delays.
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Billhartz Thomas Jay
Kopman Steve
Krishna Vivek
Afshar Kamran
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Feild Joseph
Harris Corporation
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