Sync detecting method and sync detecting circuit

Details Sync detecting method and sync detecting circuit Sync detecting method and sync detecting circuit

1996-01-11

1997-10-14

Chin, Stephen

Pulse or digital communications

Synchronizers

Frequency or phase control using synchronizing signal

375373, H04L 700

Patent

active

056779356

ABSTRACT:
A sync pattern detecting circuit detects a sync pattern from the input data to output a sync pattern detecting signal. A frame counter counts clock signals for the bit number of one frame to output a frame count signal. A sync manage circuit sets a window time area therein, and outputs a sync signal when the sync pattern detecting signal is input in the window time area. The width of the window time area is variable. The width of the window time area is controlled at timings at which the sync pattern detecting signal and the frame count signal are input.

REFERENCES:
patent: 4196416 (1980-04-01), Stein
patent: 4620300 (1986-10-01), Ogawa

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