Sync detect circuit
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United States of America Patent
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-
Feb 25, 1986
Grant Date -
N/A
app pub date -
Dec 27, 1982
filing date -
Dec 27, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sync detect circuit for detecting a sync code in a stream of digital data includes a counter that converts locally generated clock pulses to a plurality of discrete addresses that occur every bit period of time. The addresses are applied to a PROM which upon being addressed provides a sync verify code. The sync verify code is applied to a sync verify detector which provides an enable signal to the address generator if the code compares with the logic levels of a coincident bit in the stream of digital data provided from the PROM and after the full sync code has been rectified a sync detect signal is provided from a sync detector circuit.
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