Digital video recorder to be connected to DV camcorder via IEEE 1394 serial bus

摘要

A DVD recorder acquires a time code from a DV camcorder that is in process of rewinding a DV tape in response to a rewind command, and calculates a difference between a current rewind position and a beginning position on the DV tape. When the difference is smaller than a first reference value, the DVD recorder changes a command to be issued to the DV camcorder into a step reverse command. Subsequently, the DVD recorder acquires time codes before and after the DV camcorder executes a step reverse operation, and compares the two time codes. When no change is found between the two time codes six consecutive times as a result of comparisons, the DVD recorder determines that the DV tape in the DV camcorder has been completely rewound. This allows the DVD recorder to correctly recognize the completion of the rewind of the DV tape in the DV camcorder.