Clock adjustment method and apparatus for synchronous data commu

Details Clock adjustment method and apparatus for synchronous data commu Clock adjustment method and apparatus for synchronous data commu

1984-03-02

1987-09-15

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

307511, 328 72, H04L 700

Patent

active

046944729

ABSTRACT:
The disclosed clock adjustment method and apparatus utilizes a periodically transmitted positive or negative predetermined fixed increment clock phase adjustment signal to phase adjust the clocks of the system. The transmitter clock is periodically compared with a common reference clock and a fixed increment clock adjustment signal is transmitted to the receiver which adjusts its clock by applying the fixed increment clock adjustment signal to the common reference clock. The utilization of a predetermined fixed increment clock phase adjustment signal eliminates the need to send the resolution of the clock adjustment and hence reduces the number of data bits required to send clock information over the communication channel.

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