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SYSTEM FOR PLAYING VIDEO INFORMATION RECORDING DISKS CAPABLE OF SPECIAL PLAYBACK MODE OPERATION WITH A CLV DISK
SYSTEM FOR PLAYING VIDEO INFORMATION RECORDING DISKS CAPABLE OF SPECIAL PLAYBACK MODE OPERATION WITH A CLV DISK
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机译:用于使用CLV光盘进行特殊播放模式操作的视频信息记录光盘的播放系统
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摘要
A video information playback system for playing the so called CLV disks which uses a digital video memory for enabling special playback mode operations such as the SLOW mode, the STILL mode, and the FAST mode. In order to simplify the contruction of the system, a frequency of write and read clock signals used in the digital video memory is selected n times the horizontal synchronizing signal frequency. A time base servo control part of the system is controlled using a phase difference signal between a playback synchronizing signal and a reference signal whose frequency is 1/n time the frequency of the write and read clock signals. During a track jump operation for a special playback mode operation, a supply of the write clock signal and/or the read clock signal to a reference signal generator is stopped so that the phase difference is maintained constant before and after the track jump operation.
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