| 摘要 |
In a recording support mode, states of an HD device and a VTR are detected, and if the two are normal, video signals are recorded in both. The signal recorded in the HD device can be reproduced almost simultaneously with the recording upon request. Where either device is abnormal, the video signal is recorded in the normal device. In the reproduction support mode, the reproduction position of the HD device is detected, the VTR video tape is brought to that position, it is checked whether or not the video signal the same as the video signal which has been reproduced by the HD device is recorded based on the time code of the video signal recorded at that position, and the reproduction of the same video signal is carried out simultaneously with the HD device. Thereafter, where an abnormality occurs in the HD device, a third switch is changed over so that the video signal reproduced at the VTR is output.
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