Circuit for producing clock signal for reproducing PCM signal

Details Circuit for producing clock signal for reproducing PCM signal Circuit for producing clock signal for reproducing PCM signal

1987-11-30

1989-09-19

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Converting an analog signal to digital form for recording;...

360 51, G11B 500, G11B 509

Patent

active

048686891

ABSTRACT:
A circuit for use in reproducing a PCM signal recorded on a recording medium in a normal mode and a special mode, to control the frequency of a reproduction clock in accordance with variations in the frequency of the PCM signal. The speed of the medium and the speed of the head, or the frequency of a single-frequency signal in a track format recorded on the signal recording track of the medium is detected to produce a band control signal in accordance with the PCM signal frequency to shift the operating band of a voltage-controlled oscillator in the circuit.

REFERENCES:
patent: 4577241 (1986-03-01), Wilkinson
patent: 4644419 (1987-02-01), Iinuma et al.

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