发明名称 VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE
摘要 PURPOSE:To improve the S/N of a reproducing burst signal, to improve the detection accuracy of a time base error, and to improve the picture quality, by recording a burst signal in the band of a frequency modulation system. CONSTITUTION:A video signal inputted to a terminal is divided into an LPF 2 output signal BL and a BPF 3 output signal BH, and the signal BH is brought to a low frequency conversion by a frequency converting circuit 10 and becomes a signal B'H. To the signal BL, a burst signal from a burst signal generating circuit 8 is applied by an adder 6, and said signal is modulated by an FM modulating circuit 7 and becomes a signal B'L, added to a low frequency converting signal B'H by an adder 9, and recorded in a magnetic tape 17. A color burst and high frequency components the high frequency components of a chroma signal and a luminance signal) contained in an input video signal are contained in the BPF 3 output BH, the LPF 2 output BL becomes the low frequency components of a horizontal synchronizing signal and a luminance signal, and the burst signal is multiplexed to the output BL of the LPF 2 and recorded, by which no influence is exerted on the video signal and multiplexing can be executed.
申请公布号 JPS62224190(A) 申请公布日期 1987.10.02
申请号 JP19860065615 申请日期 1986.03.26
申请人 HITACHI LTD 发明人 HIGUCHI SHIGEMITSU;OKADA YOSHINORI;TAKAHASHI HIROAKI;YUDE YASUSHI;FURUHATA TAKASHI
分类号 H04N9/89 主分类号 H04N9/89
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