| 摘要 |
PURPOSE:To make it possible to record/record video signals in plural channels by changing the number of revolution of a drum and time base compression at the time of recording so that all the video signals in plural channels are recorded on a tape, and executing the time base elongating only a desired video signal component at the time of reproducing. CONSTITUTION:In a field memory (b) 22, only, the odd-number fields of the second video signals are written. A vertical synchronizing signal 10 whose time base is 1/2-compressed are read with a clock whose rate is double that for reading. In the result, the time base compressed signal is obtained in an output 24. At the time of reproducing, a signal detected by a magnetic head 31 is amplified by a reproduction amplifier 33, and lead to the P-side of a switch 14. A vertical synchronizing signal is frequency divided by half in a memory control circuit (B) 17 to generate pulse signals. The generated signal is made a write signal for writing in a memory to determine which of a first video signal or a second video signal should be selected and reproduced.
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