Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1982-12-08
1984-12-25
Masinick, Michael A.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358343, 360 191, H04N 9493
Patent
active
044907516
ABSTRACT:
A video and audio signal recording apparatus includes first and second frequency-modulators in which a first audio signal, for example, a stereophonic left signal, modulates a first carrier and a second carrier with a frequency higher than that of the first carrier so as to provide first and second FM audio signals, respectively, third and fourth frequency-modulators in which a second audio signal, for example, the stereophonic right signal, modulates a third carrier with a frequency higher than that of the second carrier and a fourth carrier with a frequency higher than that of the third carrier so as to provide third and fourth FM audio signals, respectively, a first mixing circuit for mixing the first and third FM audio signals with a video signal, such as, a composite color video signal having a frequency modulated luminance component signal in a frequency band separated from the band of a frequency-converted chrominance component signal so as to provide an interval therebetween for accommodating the first through fourth FM audio signals, a second mixing circuit for mixing the second and fourth FM audio signals with the video signal, and first and second magnetic heads having different azimuth angles and respectively receiving first and second mixed audio and video signals from the first and second mixing circuits, respectively, for recording of such first and second mixed signals in record tracks which are adjacent each other on a magnetic record medium.
REFERENCES:
patent: 3830968 (1974-08-01), Redlich
patent: 4007482 (1977-02-01), Amari
patent: 4007484 (1977-02-01), Amari
patent: 4208671 (1980-06-01), Ozawa
patent: 4353090 (1982-10-01), Broadbent
patent: 4453186 (1984-06-01), Watatani
Kakuyama Shinji
Kamai Toshimitsu
Kono Takashi
Eslinger Lewis H.
Masinick Michael A.
Sinderbrand Alvin
Sony Corporation
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