Video tape recorder with after-recording capability

Details Video tape recorder with after-recording capability Video tape recorder with after-recording capability

1989-11-13

1992-06-09

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Record editing

358343, G11B 502

Patent

active

051212595

ABSTRACT:
A video tape recording apparatus having a tape guide drum with a cylindrical outer surface for guiding a magnetic tape in a helical fashion on the outer surface, and a pair of rotary magnetic heads rotating at a predetermined speed and provided in association with the tape guide drum for scanning skewed parallel tracks on the magnetic tape is specially adapted to perform after recording or dubbing. Each of the tracks is formed having a length to accommodate a pair of audio portions and a center video portion provided between the pair of audio portions. Rotational angles of the rotary magnetic heads corresponding to the length of the audio portions and the center video portion are expressed as follows,

REFERENCES:
patent: 4303950 (1981-12-01), Taniguchi et al.
patent: 4353098 (1982-10-01), Heinz et al.
patent: 4477844 (1984-10-01), Nakano et al.

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