Video recording and reproducing system

Details Video recording and reproducing system Video recording and reproducing system

1975-03-03

1977-01-04

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 9, 360 35, 360 84, 360 85, H04N 5785, G11B 1544, G11B 1546

Patent

active

040018857

ABSTRACT:
The video recording and reproducing system disclosed herein is adapted to perform record and/or playback in two selectable modes. In one mode of operation termed "standard mode," only one field of television video signal is recorded on or reproduced from each of the oblique tracks on a recording medium. In the other mode of operation termed "period expansion mode," n fields of the television video signal (n : multiple integer equal two, to or more than two) may be recorded on or reproduced from each of the oblique tracks. A switchover from the standard mode to the period expansion mode is achieved by a 1
reduction of relative speed between the recording medium and rotary transducing head assembly.

REFERENCES:
patent: 2876295 (1959-03-01), Irby
patent: 3157739 (1964-11-01), Okamura
patent: 3170031 (1965-02-01), Okamura
patent: 3573356 (1971-04-01), Toce
patent: 3869709 (1975-03-01), Yamagishi et al.

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