Rotary head type digital signal recording and reproducing appara

Details Rotary head type digital signal recording and reproducing appara Rotary head type digital signal recording and reproducing appara

1987-09-29

1989-06-06

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

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

G11B 509

Patent

active

048376418

ABSTRACT:
A rotary head type digital signal recording and reproducing apparatus plays a magnetic tape which is pre-recorded with a time division multiplexed audio signal comprising a PCM audio data and a sub-channel signal which is time division multiplexed immediately before and after the PCM audio data for each track. When carrying out an after recording of the sub-channel signal to be reproduced in a half tape speed mode, both of the rotational speed of the two magnetic heads and the tape transport speed are set identical to those at a standard tape speed mode which has a rotational speed and the tape transport speed which are twice those of the half-speed mode.

REFERENCES:
patent: 4758902 (1988-07-01), Okamoro et al.

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