发明名称 DEVICE FOR RECORDING AND REPRODUCING VIDEO SIGNAL
摘要 PURPOSE:To record and reproduce signals as same as conventional one and to execute the recording and reproducing of wide-band video signals by constituting in such a way that the video signal of a standard system and that in the wide band can be selectively recorded and reproduced. CONSTITUTION:A low-frequency conversion chroma signal in a narrow band from a chrominance signal recording processing circuit 3, an FM audio signal 15 and a pilot signal 16 are supplied to an adder 13, while a frequency multiplexing signal is recorded by a main video head 18. On the other hand, Y signal high frequency components in a high-frequency band and a high frequency line sequence chrominance signal are supplied to an adder 63, which becomes a multiplexed frequency signal, and recorded by subvideo head 70. Thus the high band Y signal can be obtained from the narrow band Y signal and high-frequency component of the Y signal at reproduction, and the video signal with high resolution can be obtained from the wide band Y signal and the wide band line sequence chrominance signal.
申请公布号 JPS60241390(A) 申请公布日期 1985.11.30
申请号 JP19840096679 申请日期 1984.05.16
申请人 HITACHI SEISAKUSHO KK 发明人 TAKASE OSAMU;AZEYANAGI TOMOMITSU;KOMATSU KEIICHI;WATANABE KATSUYUKI;MITSUHAYASHI TOSHIHIRO
分类号 H04N9/80;H04N9/81;H04N9/83 主分类号 H04N9/80
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