发明名称 RECORDING/REPRODUCING DEVICE
摘要 PURPOSE:To restrict the number of times of digital copy by providing a discrimination part to discriminate the propriety of the digital copy of an input signal, a copy control signal generating part to obtain a copy control sub-code signal and a control signal converting part. CONSTITUTION:The discrimination part 11 of a system controller 27 decides the propriety of the digital copy of the input signal according to a copy control signal consisting of two bits including the bit 2 of a channel status to show the propriety of the digital copy of a control signal contained in a digital signal connecting between apparatuses. Then, the copy control signal generating part 12 which obtains the copy control sub-code signal consisting of two bits by which an output signal regenerated from the copy control signal shows the propriety of the digital copy in a case that the input signal can be digital-copied, and obtains the prescribed copy control sub-code signal in the case of analog recording is provided. Further, the number of times of copy can be restricted by outputting the copy control signal of a value different from the digital input signal at the time of the reproduction of a recorded signal, and outputting the prescribed copy control signal to the copy control signal converting part 22 even at the time of the analog signal.
申请公布号 JPH01253872(A) 申请公布日期 1989.10.11
申请号 JP19880080844 申请日期 1988.03.31
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 SHIMADA HIROMICHI
分类号 G11B20/10 主分类号 G11B20/10
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