PCM Recording and reproducing system

Details PCM Recording and reproducing system PCM Recording and reproducing system

1978-10-11

1980-09-09

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

042220793

ABSTRACT:
Phase signals are sensed from the frame synchronizing signals resulting from a PCM magnetic multitrack record tape and applied to a selector connected to a phase locked oscillator. The oscillator is connected to a gate signal generator. The selector responds to each gate signal from the gate generator to pass only one of the phase signals through the same. The oscillator has its phase synchronized with that of the phase signal passed through the selector and provides the phase signals serving to control the speed of the record tape.

REFERENCES:
patent: 3810234 (1974-05-01), Monett
patent: 3898580 (1975-08-01), Millsap
patent: 4005479 (1977-01-01), Hunnicutt
patent: 4037257 (1977-07-01), Cheri
"Video Tape Recording," K. Suzuki, 1st Ed., 3rd Print, 7/25/63, Chap. 12, pp. 98-103.

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