| 摘要 |
PURPOSE:To simplify the mechanism and operation of a tape drive system and to improve the accuracy of joints by synchronizing a recording signal system with a control pulse reproduced from a tape in case of joint image pickup. CONSTITUTION:In case of the video recording mode, a generating circuit 40 generates a vertical synchronizing signal Sv and a horizontal synchronizing signal Sh, they are fed to an image pickup tube 21 and a control pulse CTL having a frequency is generated and fed to a head 16 through a recording side contact R of a switch circuit 36 and recording at the edge of a tape 1. In bringing the mode to the video recording pause mode by turning on a switch 51, the head 16 reproduces the control pulse CTL, which is fed to a control circuit 50 via the switch 36 and a reproducing amplifier 37. Then the control circuit 50 checks the period of the CTL and confirms that the tape running is stabilized, then a reset pulse synchronously with the CTL is given to the generating circuit 40.
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