Synchronizing signal detecting circuit

Details Synchronizing signal detecting circuit Synchronizing signal detecting circuit

1986-04-30

1988-01-12

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 48, G11B 509

Patent

active

047195231

ABSTRACT:
A synchronizing signal detecting circuit for a digital data reproducing apparatus has a reproducing device connected to a magnetic head which scans a recording medium for deriving digital signals, a phase locked loop circuit connected to the reproducing device for generating a clock signal based on the derived digital signals, a synchronizing counter for generating synchronizing timings by counting the clock signal, a plurality of synchronizing pattern detecting circuits connected to the reproducing device for detecting synchronizing patterns included in the digital signals, and a logic circuit connected to the plurality of synchronizing pattern detecting circuits for supplying an initialize pulse to the synchronizing counter upon detecting successive synchronizing patterns in the digital signals by the plurality of synchronizing pattern detecting circuits.

REFERENCES:
patent: 4433348 (1984-02-01), Stockham, Jr.

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