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Variable-speed playback method in the magnetic recording and reproducing apparatus (磁 氣 記錄 再生 裝置) (可 變速 再生 方法) and an apparatus
Variable-speed playback method in the magnetic recording and reproducing apparatus (磁 氣 記錄 再生 裝置) (可 變速 再生 方法) and an apparatus
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机译:Variable-speed playback method in the magnetic recording and reproducing apparatus (磁 气 记录 再生 装置) (可 变速 再生 方法) and an apparatus
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摘要
A method for correcting deviation between one of video tracks on a magnetic tape (1) and a rotating head (3) during a tape stop state of an intermittent drive for a noiseless slowstill picture in a video tape recorder using pilot signals. A series of pulses from a frequency generator (17) of a capstan (5) is counted during the tape feeding state of an intermittent drive in order to detect a timing of stopping the tape feeding. As the count number thereof becomes a set value corresponding to a regular amount of feeding the tape during the intermittent drive, the tape feeding is controlled to stop. A tracking error signal is produced from the pilot signals reproduced from the tape by the rotating head within the tape stop state of the intermittent drive. The set value for the next tape feeding of the intermittent drive is corrected in response to the tracking error signal.
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