发明名称 Apparatus for magnetically recording and/or reproducing two-channel audio signals together with a color video signal in successive oblique tracks on a magnetic tape
摘要 In an apparatus for magnetically recording and/or reproducing two-channel audio signals and a color video signal, the color video signal is processed to provide a frequency-modulated luminance signal and a frequency-converted chrominance signal in a band below that of the frequency modulated luminance signal, and the two-channel audio signals are processed to provide a frequency-modulated audio signal including alternated first and second segments respectively corresponding to the two-channel audio signals. The frequency-modulated audio signal is mixed with, and located between the frequency bands of the frequency-modulated luminance signal and the frequency-converted chrominance signal to provide a mixed signal which is recorded in successive oblique tracks on a magnetic tape. In the reproducing mode, the luminance and chrominance signals are obtained from the frequency-modulated luminance and frequency-converted chrominance signals in the mixed signal reproduced from the magnetic tape, and the frequency-modulated audio signal obtained from the mixed signal is demodulated to alternately provide the first and second segments which are separated from each other for producing the two-channel audio signals, respectively.
申请公布号 US4709275(A) 申请公布日期 1987.11.24
申请号 US19850709123 申请日期 1985.03.07
申请人 SONY CORPORATION 发明人 FUKUDA, TOKUYA
分类号 H04N5/91;G11B5/027;H04N9/82;H04N9/835;(IPC1-7):H04N5/782 主分类号 H04N5/91
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