| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital information recording and reproducing device which manages a sales destination, a rental period, etc., in a system where audio or video software is sold or rented via radio wave or a cable. SOLUTION: Control information is added to a transmitted digital information signal to record this signal. At reproduction, this control information is detected, and it is decided whether reproducing should be performed according to this information. Control information includes discrimination information of a recording device, a recording data, etc., to easily manage a reproducing device, a rental period, etc.
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