| 摘要 |
<p>PURPOSE:To attain the recording of signals of plural TV systems by dividing the video signals of each field into plural trunks to record them on a magnetic tape by means of a pair of rotary heads and then recording the record phase of the rotary head on a control track. CONSTITUTION:A rotary drum 1 is provided to a video signal recorder, and a magnetic tape 2 is wound round the drum 1 within a range of a winding angle theta by means of guides 3A and 3B. At the same time, head substrates 4 and 5 are attached to the drum 1 with a 180 deg. angle space. Then rotary heads 6A and 6B are attached on the substrate 4; while rotary heads 6C and 6D are attached to the substrate 5. A double gap structure is applied to each of these heads 6A- 6D. The heads 6A and 6B scan simultaneously the tape 2 to form tracks 7A and 7B at a time; while tracks 7C and 7D are formed at a time when heads 6C and 6D scan the tape 2. Then the record phase of the rotary head is recorded on a control track.</p> |
