发明名称 Methods for audio watermarking and decoding
摘要 An identification code signal is hidden in a carrier signal (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned. The carrier signal can thereby be identified, or some machine responsive action can thereby be taken. The technique can be applied in audio and video embodiments to control associated consumer electronic equipment, e.g. to serve as a copy control signal.
申请公布号 US2006109984(A1) 申请公布日期 2006.05.25
申请号 US20060325131 申请日期 2006.01.03
申请人 RHOADS GEOFFREY B 发明人 RHOADS GEOFFREY B.
分类号 H04K1/02;B42D15/00;G06F11/30;G06K9/00;G06K9/36;G06T1/00;G07C9/00;G07D7/00;G07D7/12;G07F7/08;G07F7/10;G07F7/12;G07F17/16;G09C1/00;G09C5/00;G10L19/00;G11B20/00;G11B20/10;H04B1/66;H04B1/69;H04K1/00;H04L1/00;H04N1/00;H04N1/32;H04N1/387;H04N5/91;H04N5/913;H04N7/08;H04N7/081;H04N7/26;H04R5/00 主分类号 H04K1/02
代理机构 代理人
主权项
地址