Method and apparatus for setting clock signals to predetermined

Multiplex communications – Wide area network – Packet switching

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Details

3701001, 455 511, 455 541, 455 561, 375107, H04B 700

Patent

active

051174243

ABSTRACT:
A coherency generator for providing signals to control the time and phase coherency of data information signals in an overlap region of a simulcast system that comprises a control site and a plurality of remote broadcast sites. A channel card located at each remote site derives from the information signals a master clock signal for synchronizing the broadcast of data information on an RF carrier. At substantially regular intervals a transmit section of the coherency generator transmits a synchronization command signal after detecting a predetermined sequence of ones or zeros. A receive section of the coherency generator issues a reset pulse to the remote site channel card upon detecting a predetermined pattern of values of a preselected data bit, and following detection of the synchronization command pulse. The reset pulse clears the memory elements of the channel card, setting the phase of the clock signal.

REFERENCES:
patent: 3902161 (1975-08-01), Kiowski et al.
patent: 4218654 (1980-08-01), Ogawa et al.
patent: 4255814 (1981-03-01), Osborn
patent: 4317220 (1982-02-01), Martin
patent: 4411007 (1983-10-01), Rodman et al.
patent: 4414661 (1983-11-01), Karlstrom
patent: 4472802 (1984-09-01), Pin et al.
patent: 4475246 (1984-10-01), Batlivala et al.
patent: 4516269 (1985-05-01), Krinock
patent: 4597105 (1986-06-01), Freeburg
patent: 4696051 (1987-09-01), Breeden
patent: 4696052 (1987-09-01), Breeden
patent: 5003617 (1991-03-01), Epsom et al.
Hattori et al., "A New Modulation Scheme for Multi-Transmitter Simulcast Digital Mobil Radio Communication", Mar. 1979, pp. 83-88.

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