Apparatus for recording and/or reproducing video and audio signa

Details Apparatus for recording and/or reproducing video and audio signa Apparatus for recording and/or reproducing video and audio signa

1983-11-18

1986-04-01

McElheny, Jr., Donald

Facsimile and static presentation processing

Facsimile

Recording apparatus

358330, 360 191, H04N 5782

Patent

active

045801746

ABSTRACT:
A video and audio signal recording apparatus includes a first frequency modulator in which a first audio signal to be recorded that may represent a stereophonic left channel modulates a first carrier to produce a first FM audio signal, and a first frequency convertor converts the carrier frequency of the first FM audio signal to a different carrier frequency higher than the first carrier frequency to form a second FM audio signal. A second frequency modulator modulates a second audio signal to be recorded that may represent a stereophonic right channel to produce a third FM audio signal, and a second frequency converter converts the third FM audio signal into a fourth FM audio signal having a carrier frequency that is higher than any of the other FM audio signals so modulated. The first and third FM audio signals are mixed to form a first mixed audio signal and the second and fourth FM audio signals are mixed to form a second mixed audio signal, which are both combined in a mixing circuit with a composite color video signal to form first and second mixed audio and video signals which are fed to first and second magnetic recording heads, respectively. Reproducing apparatus reproduces the recorded signal.

REFERENCES:
patent: 4509083 (1985-04-01), Nakano

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