描述了通过有线电视或直接卫星广播系统或互联网传输的视频或音频信号的受控复制的方法和装置。 通过由内容提供商（10a）插入到视频或音频信号中的第一水印（W1）与第二水印（W2）的形式的附加复制保护的组合，可以保护版权的视频或音频资料免受不希望的记录。 水印或标记（W1，W2）嵌入视频或音频信号的有效部分。 只有当消费者愿意支付费用时，具有发送到记录装置（42a）的单个水印（V + W1）的视频信号才能复制视频信号。 然而，在允许复制的情况下，记录装置被布置成将第二水印（W2）嵌入到要记录到盘（46a）上的视频信号（V + W1 + W2）中，从而防止进一步的复制。 这样可以在付款后单个副本。

A method and apparatus for the copying control of the audio or video signal transmitted over a cable television or direct satellite broadcast system or the internet. Copyrighted audio or video water (or else) is undesired by the combination of a watermark into the audio or video signal on a ticket or the second watermark adding copy protection data and the head end into the audio or video signal It is protected from the replication (recording). Video line 21 in the vertical blanking interval in the (NTSC TV) is used to hold a ticket (cryptographic counter). Audio or video, the watermark is inserted into the useful portion of the audio or video signal. When consumers pay voluntarily charge only a video signal with a watermark and a ticket is sent to the recording device of the consumer watermark it is matched with a mathematical function of the tickets, and the recording is allowed only if they match. Alternatively, the consumer such control may also serve for the audio or video within the second watermark. Corresponding reproduction apparatus Since the output audio or video signal without the ticket, and then replication is not at all acceptable. This allows you to be a replica of the one at the time of payment.