Real-time locating system and method using timing signal

Details Real-time locating system and method using timing signal Real-time locating system and method using timing signal

2007-05-01

2007-05-01

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Spread spectrum

C340S870030, C340S450000

Reexamination Certificate

active

10138795

ABSTRACT:
A location system includes a plurality of signal readers for receiving signals from a wireless transmitter to be located. The signals include a wideband, spread spectrum signal and a timing marker appended a predetermined time in front of the wideband, spread spectrum signal for indicating the presence of the wideband, spread spectrum signal. A location processor is operatively coupled to the signal readers for detecting the timing markers of signals and responsive to a detection of a timing marker, correlating a signal as a first-to-arrive signal and conducting differentiation of first-to-arrive signals to locate a wireless transmitter.

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