Alternative timing source for...

Details Alternative timing source for... Alternative timing source for...

2007-12-05

2011-11-15

Bruckart, Benjamin R (Department: 2478)

Multiplex communications

Low speed asynchronous data system

Rotary distributor

C370S355000

Reexamination Certificate

active

08059568

ABSTRACT:
Methods and systems are provided for implementing an alternative timing source for low-cost-Internet-base-station-(LCIB) systems. In accordance with an embodiment, an LCIB has an internal clock. The LCIB is arranged to receive a GPS signal, and to treat timing information embedded in the GPS signal as the LCIB's primary source of timing information for calibrating the internal clock. The LCIB detects a loss of the GPS signal, and responsively uses a macro-network receiver to receive macro-network timing information from a macro network, which is a terrestrial wireless network. The LCIB uses the macro-network timing information to calibrate the internal clock.

REFERENCES:
patent: 7190703 (2007-03-01), Heitmann
patent: 2002/0016170 (2002-02-01), Sabat et al.
patent: 2002/0159416 (2002-10-01), Kazmi et al.
patent: 2004/0204097 (2004-10-01), Scheinert et al.
patent: 2010/0091760 (2010-04-01), Yoon

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