发明名称 Slow or still mode video signal reproducing apparatus with incremented tape movement
摘要 A video signal reproducing apparatus in which a magnetic tape having a video signal recorded thereon in parallel slant tracks is transported by a capstan and pinch roller in cooperation with a capstan drive. The capstan drive is responsive to pulses supplied in the normal mode at a predetermined rate. In a slow motion or still reproduction mode, a pulse generator provides pulse signals to the capstan drive so that the tape can be selectively advanced a predetermined fraction of the pitch of the slant tracks. If any portion of the trace of the head scan contains a noise signal which is observable in the reproduced signal occurring due to the difference in angle of inclination between the scan trace of the head and the recording tracks, the scan trace can be moved relative to the recorded track so that such noise signal coincides with the vertical blanking portion of the video signal, or with any other portion of the video signal where the noise is unobjectable.
申请公布号 US4276571(A) 申请公布日期 1981.06.30
申请号 US19790016022 申请日期 1979.02.28
申请人 SONY CORPORATION 发明人 SAKAMOTO, HITOSHI
分类号 G11B15/18;G11B27/00;H04N5/783;(IPC1-7):H04N5/78;G11B15/20 主分类号 G11B15/18
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