PCM Recording and reproducing system

Details PCM Recording and reproducing system PCM Recording and reproducing system

1978-11-13

1980-11-18

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

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

360 14, 360 38, G11B 500, G11B 509, G11B 2702, H04W 578

Patent

active

042348960

ABSTRACT:
A reproduced PCM signal in the form of continuous frames is subjected to a code check after the separation of its frame synchronizing signals and then stored in a memory. If more than two consecutive frames are determined to include code errors resulting from a spliced portion of the associated PCM magnetic tape than those frames are prevented from being written into the memory but the latter is continuously read out by skipping the lost data and reading other data stored in the memory. Also the amount of data stored in the memory is sensed and maintained at a predetermined constant magnitude by controlling the speed of travel of the tape.

REFERENCES:
patent: 3050105 (1962-08-01), Dolby
patent: 4063284 (1977-12-01), Tatami
patent: 4143406 (1979-03-01), Tsuiki et al.
patent: 4146099 (1979-03-01), Matsushima et al.

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