Tape synchronizing apparatus having self-correcting offset calcu

Details Tape synchronizing apparatus having self-correcting offset calcu Tape synchronizing apparatus having self-correcting offset calcu

1989-08-11

1991-01-29

Richardson, Robert L.

Dynamic magnetic information storage or retrieval

Record editing

360 721, H04N 5782, G11B 2710

Patent

active

049891014

ABSTRACT:
A tape synchronizing apparatus for a tape reproducer using a tape with information signals and time code signals recorded thereon and serving to reproduce such signals from the tape. When attaining synchronism with a reference time code before return of a rewound tape to a target in-point, there is calculated, at the instant of the tape speed rise to a predetermined constant speed, the difference between the respective remaining times of both the read and reference time codes until the target in-point, and the preset value of the reference time code at the tape rewind instant is further offset by the difference from the time period corresponding to the tape rewind, so that the difference is reduced substantially to zero at the next tape speed rise, thereby shortening the time required for synchronization (phase modification).

REFERENCES:
patent: 4532560 (1985-07-01), Williams
patent: 4663679 (1987-05-01), Sekiguchi et al.

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