Time synchronization system and method for synchronizing...

Details Time synchronization system and method for synchronizing... Time synchronization system and method for synchronizing...

2005-08-09

2008-08-12

Trinh, Tan (Department: 2618)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S324000, C455S502000

Reexamination Certificate

active

07411937

ABSTRACT:
A time synchronization system synchronizes local clocks of locating units within a communication system using a known external signal. Each of the locating units receives a radio frequency (RF) signal from a transmitter at a known geographical location and measures the RF signal to produce a respective measurement of the signal and a respective timestamp of the measurement recorded at substantially the same time of the local clocks of the locating units. A controller determines a measured time difference of arrival between the locating units using the measurements and timestamps, computes a time synchronization error between the locating units from a difference between the measured time difference of arrival and an expected time difference of arrival and provides a respective time adjustment to each of the locating units to offset the time synchronization error.

REFERENCES:
patent: 5119104 (1992-06-01), Heller
patent: 5469409 (1995-11-01), Anderson et al.
patent: 6108558 (2000-08-01), Vanderspool, II
patent: 6185429 (2001-02-01), Gehrke et al.
patent: 6266012 (2001-07-01), Kangas et al.
patent: 6281843 (2001-08-01), Evtioushkine et al.
patent: 6493539 (2002-12-01), Falco et al.
patent: 6539229 (2003-03-01), Ali
patent: 6618452 (2003-09-01), Huber et al.
patent: 7072612 (2006-07-01), Soliman
patent: 7269427 (2007-09-01), Hoctor et al.
patent: 2002/0183069 (2002-12-01), Myr
patent: 2003/0220765 (2003-11-01), Overy et al.
patent: 2004/0072582 (2004-04-01), Aljadeff et al.
patent: 2006/0125685 (2006-06-01), Jeon et al.
patent: 2005 047926 (2005-05-01), None
GB Search Report Under Section 17 dated Sep. 12, 2006.

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