专利名称：Copy protection control system发明人：CHRISTOPHER J COOKSON申请号：AU2509200申请日：20000118公开号：AU2509200A公开日：20000807
摘要：A system for protecting against use of pirated music. Two watermarks areinserted into the music to be protected by the music publisher. One watermark is robust-it will not be destroyed by compression. The other watermark is weak-it is designed tobe destroyed by compression. The robust mark tells a player that the music is protected,i.e., that it is not authorized to be delivered in compressed form over an insecure channel.If the music is found to have been compressed and it was delivered over an insecurechannel, then its play or other processing can be restricted.
申请人：TIME WARNER ENTERTAINMENT CO., L.P.
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