Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2007-12-04
2007-12-04
Ngo, Ricky Q. (Department: 2616)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C370S503000, C370S324000, C398S154000, C455S502000
Reexamination Certificate
active
10238145
ABSTRACT:
A wireless communications network including multiple nodes, and a local node having GPS-based time for synchronization of time-of-day (TOD) in the network. The network includes at least the local node and a neighbor node communicating in the network. The local node includes a clock generator for generating a local TOD, and a time management unit, coupled to the clock generator, for adjusting the local TOD. A receiver in the local node receives from the neighbor node a message including a neighbor TOD. A counter in the local node computes and provides an integer value corresponding to a number of update values for synchronization of the neighbor TOD to the GPS-based time. A transmitter in the local node transmits to the neighbor node the integer value provided by the counter, whereby the time management unit adjusts the local TOD to the neighbor TOD and then transmits the adjusted local TOD and the integer value to the neighbor node for synchronization of the neighbor TOD to the GPS-based time.
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Patel Kaushik B.
Wetstein Robert M.
Yoon Chang-June
ITT Manufacturing Enterprises Inc.
Ngo Ricky Q.
Patel Chandrahas
RatnerPrestia
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