发明名称 RECORDING AND REPRODUCING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a recording and reproducing device in which a frame synchronizing part is formed without using a voltage control type oscillator circuit, relating to a VTR for recording video signals of one frame on a magnetic tape by distributing them to N-tracks (N is an integer >=1). SOLUTION: A frame reference signal 118 generated on the basis of a vertical synchronous signal of a recording video signal is supplied to a phase comparator 122, and a phase error between the reference signal and a frame pulse 120 is measured, average-processed by an average-processing part 123, divided by the number of tracks in a frame to decide a period in the track. A track counter 124 uses the period in the track as the number of clocks in one track, and outputs a track pulse 121 in each track period. Moreover, every time when a counter 125 presenting a track number reaches the number clocks in one track of the track counter 124, it counts up and the frame pulse 120 is outputted.
申请公布号 JP2002208234(A) 申请公布日期 2002.07.26
申请号 JP20010002181 申请日期 2001.01.10
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 NAKAGAWA TOMOO
分类号 H04N5/91;G11B20/12;G11B20/14;(IPC1-7):G11B20/14 主分类号 H04N5/91
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