| 摘要 |
PROBLEM TO BE SOLVED: To provide a fast recording-reproducer and an inexpensive recorder- reproducer of small power consumption by means of a semiconductor common signal processing circuit. SOLUTION: A selection circuit is provided for selecting input to a scramble processing circuit by means of the input given from a temporary storage or an external input terminal, and the scramble processing is carried out while the signals are inputted from the outside when the fast processing is required. When a small size and a low price are required, the signals inputted from the outside are temporarily stored in a RAM for temporary storage. Then the scramble processing is performed to the stored data.
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