Digital video signal recording and reproducing method and appara

Details Digital video signal recording and reproducing method and appara Digital video signal recording and reproducing method and appara

1993-07-14

1996-01-23

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 101, H04N 576

Patent

active

054869315

ABSTRACT:
A recording/reproducing method includes helically scanning a first region of a magnetic tape running at a normal speed using several rotary heads, recording a digital data train on several sloped tracks and simultaneously recording single-frame data at N-picture intervals on a second region of the magnetic tape through at least one fixed head, and reproducing the data recorded on the first region during a normal reproduction, while the magnetic tape runs at an N-times speed for variable speed reproduction to reproduce the data recorded on the second region. In a digital VTR, the recording data for the normal recording/reproduction and special recording/reproduction is separately recorded and reproduced on mutually different regions of the magnetic tape. Accordingly, since the processing of the normal recording/reproduction signal is independent from that of the special recording/reproduction signal, the normal-processing design is facilitated due to a greater degree of freedom. Also, an apparatus is adapted to perform the method.

REFERENCES:
patent: 4613912 (1986-09-01), Shibata et al.
patent: 4910605 (1990-03-01), Sasaki et al.
patent: 5130800 (1992-07-01), Johnson et al.
patent: 5132807 (1992-07-01), Takimoto et al.
patent: 5347406 (1994-09-01), Chiba et al.

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