发明名称 Magnetic recording and reproducing apparatus
摘要 A magnetic recording and reproducing apparatus wherein synchronizing separation of a reproduction video signal can be performed accurately and a stabilized reproduction video signal can be obtained. The magnetic recording and reproducing apparatus includes a switch device for selectively inserting, upon recording, a PCM modulated audio signal into a blanking period of an FM modulated video signal, a PCM region signal generator for identifying a region of a PCM modulated audio signal in a reproduction signal reproduced by a rotary head and generating a control signal representative of a PCM audio signal region, an FM demodulator for FM demodulating a reproduction signal from the rotary head into a reproduction FM demodulation signal, and a clip circuit for clipping a lower end portion of a PCM audio signal region of a reproduction FM demodulation signal from the FM demodulator in accordance with a control signal generated from the PCM region signal generator.
申请公布号 US5432649(A) 申请公布日期 1995.07.11
申请号 US19910802741 申请日期 1991.12.05
申请人 MITSUBISHI DENKI KABUSHIKI KAISHA 发明人 YAMADA, MASAKO;KANEKO, HIDEKI;INOUE, SADAYUKI;OHKUMA, IKUO
分类号 H04N5/781;H04N5/92;H04N5/926;H04N5/932;(IPC1-7):G11B5/02 主分类号 H04N5/781
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