Recording apparatus having plural operating modes involving dive

Details Recording apparatus having plural operating modes involving dive Recording apparatus having plural operating modes involving dive

1990-08-13

1993-03-02

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358335, 360 331, 360 27, H04N 576

Patent

active

051914310

ABSTRACT:
An information recording apparatus comprises a signal compression unit responsive to a mode changeover signal for changing over the compression rate of input digital information between first and second compression rates, the second compression rate being higher than said first compression rate, a unit for generating a tracking-control pilot signal, a recording unit for recording the digital information compressed by said compressing unit and the pilot signal on a recording medium while forming a number of recording tracks, and a mode changeover unit for generating the mode changeover signal for changing over an operating mode of the apparatus between a plurality of modes, the plurality of modes including: a first mode in which the compressing unit compresses the digital information at the first compression rate and the recording unit sets the proportion of a recording area of the pilot signal to the entirety of the recording track to a first ration; and a second mode in which the compressing unit compresses the digital information at the second compression rate and the recording unit sets the proportion of a recording area of the pilot signal to the entirety of the recording track to a second ratio, the second ratio being higher than the first ratio.

REFERENCES:
patent: 4675750 (1987-06-01), Collins et al.
patent: 4823206 (1989-04-01), Nemoto et al.
patent: 4989102 (1991-01-01), Murabayshi et al.
patent: 5081550 (1992-01-01), Yagisawa et al.

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