H - Electricity – 04 – N
Patent
H - Electricity
04
N
352/18
H04N 5/92 (2006.01) H04N 5/782 (2006.01) H04N 9/835 (2006.01)
Patent
CA 1214868
ABSTRACT OF THE INVENTION 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 differ- ent 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.
441490
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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