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Recording and reproducing device for video signal

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专利汇可以提供Recording and reproducing device for video signal专利检索,专利查询,专利分析的服务。并且PURPOSE:To prevent the deterioration in video quality through the provision of excellent dubbing characteristics for VTRs with different low converting frequencies, by constituting the carrier frequency of a chroma signal converted into low frequencies so as to be switched with each other. CONSTITUTION:The chroma signal low converting frequency of VTRs 1, 2 and 3, 4 are taken respectively as (a) and (b) Hz. The reproduced luminance signal of the VTRs 3, 4 is applied to a mixing circuit 8 via a reproducing amplifier 6 and a demodulation circuit 7 from a video head 5 of the VTR 3, the signal is mixed with a chroma signal via a chroma signal demodulation circuit 11 at the circuit 8 and a video signal is outputted to a terminal 25. A dubbing output is given to terminals 21, 22 and respectively applied to a recording amplifier 14 via an FM modulation circuit 13 and a low band amplifier 15. The VTRs 1, 2 are provided with frequency converting circuits 12, 16 and the changeover of the frequencies (a), (b) Hz is done via swiches S1, S2. In dubbing the VTRs 1 and 4 for example, excellent dubbing characteristics can be attained.,下面是Recording and reproducing device for video signal专利的具体信息内容。

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