发明名称 HIGH SPEED SEARCH SYSTEM FOR STILL PICTURE DISK
摘要 PURPOSE:To simplify a switching operation and a circuit, and to enable a sound signal to be added even in high speed search time, by constituting a device so as to obtain a high speed search by raising the readout clock frequency of the sound signal. CONSTITUTION:When a mode is switched to a high speed mode, first of all, it is decided that a state is a reproduction state, and next, the readout cycle T of a memory (RAM) is switched to a cycle Ts/n. And when it is not a video reproduction time, in other words, when a head is located on a sound track, a head is sent to a track where a still picture corresponding to said sound information is recorded, then the still picture being reproduced, after a write on a memory (RAM) is completed, and simultaneously, the sound signal is read out from the memory (RAM) with the clock cycle of Ts/n. Therefore, the still picture and the sound signal having the speed of n-times are outputted. When the sound signal is terminated, the head is moved to the next sound track, and the still picture and the sound signal are outputted continuously in a similar sequence.
申请公布号 JPS62180688(A) 申请公布日期 1987.08.07
申请号 JP19860021282 申请日期 1986.02.04
申请人 SONY CORP 发明人 SHIMADA MASARU;MOMOCHI NOBUMOTO
分类号 H04N5/781;H04N5/92;H04N5/928;H04N5/93 主分类号 H04N5/781
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