Recording control device and method utilizing a test signal havi

Details Recording control device and method utilizing a test signal havi Recording control device and method utilizing a test signal havi

1995-08-24

1997-01-28

Tran, Thai Q.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 13, H04N 5782

Patent

active

055982735

ABSTRACT:
In a magnetic recording control device, a plurality of test signals of different frequencies are recorded on and reproduced from a magnetic recording medium, and the reproduction levels of the test signals are detected. From the detection results, the frequency characteristics and electro-magnetic conversion characteristics of the magnetic recording medium are judged. A frequency correction in accordance with the judged frequency characteristics, and a record level correction in accordance with the judged electro-magnetic conversion characteristics are conducted on a video signal to be recorded.

REFERENCES:
patent: 4807056 (1989-02-01), Sasaki et al.
patent: 4956726 (1990-09-01), Takimoto et al.
patent: 5077623 (1991-12-01), McSweeney
patent: 5140435 (1992-08-01), Suzuki et al.
patent: 5257109 (1993-10-01), Minakawa
patent: 5296929 (1994-03-01), Marimoto
patent: 5311373 (1994-05-01), Murabayashi et al.

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