GPS synchronization of CTS transmitters for an interactive netwo

Details GPS synchronization of CTS transmitters for an interactive netwo GPS synchronization of CTS transmitters for an interactive netwo

1996-02-27

1998-12-29

Vu, Huy D.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

370517, 375356, 348 13, H04N 756, H04N 714

Patent

active

058547932

ABSTRACT:
A two-way communication network for routing communications from and to a plurality of subscriber units at various geographic locations. The network includes a plurality of low power local subscriber units adapted to transmit and receive digital data messages of variable lengths and a central transmitter station (CTS). The CTS includes data transmission and data reception facilities. The transmission facilities transmit messages to the local subscriber units and include a synchronization unit that synchronizes the transmission facilities with a precision clock signal. The data reception facilities receive and process messages from the subscriber units. Remote receiver units are dispersed over the geographic area served by the CTS and relay digital messages transmitted from the subscriber units to the CTS. Each subscriber unit communicates with the CTS by way of digital data signals synchronously related to said precision clock signal and timed for multiplexed message transmission.

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