| 摘要 |
In order to facilitate editing of a video tape, a vide tape recorder is provided with a control arrangement to control the operation of the tape transport and operating mode at an edit point A, for this purpose, it is programmed to operate so that when shifted from a record mode to a pause mode at the edit point, the tape is rewound by a first predetermined amount (to B), determined by the counting of a predetermined number of control signals recorded in a control track lengthwise of the tape, the tape is then rewound (to D) for a second predetermined number of the control signals so that the previously made recording can be checked, the tape is then forwarded (to E) in a playback mode for the amount for the amount substantially corresponding to the total of the first and second numbers and the tape is then rewound (to F) by an amount nearly equal to the first number after the finish of the forwarding operation. Various details of the circuitry required to achieve this are controlled as well as a facility whereby the time constant of a servo controlling the tape speed is varied according to the operating mode. |
