公开(公告)号：US06198875B1

公开(公告)日：2001-03-06

申请号：US08994414

申请日：1997-12-19

申请人： Roy I. Edenson ,  Madhu Nerlikar

发明人： Roy I. Edenson ,  Madhu Nerlikar

IPC分类号： H04N576

CPC分类号： G11B23/286 ,  G11B19/02 ,  G11B19/12 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00695 ,  G11B20/0071 ,  G11B20/00746 ,  G11B20/00876 ,  G11B23/0042 ,  G11B23/284

摘要： The invention consists of attaching or embedding a “TIRIS” transponder (or other RF or IR or barcode or other identifying device) physically into the center of the proposed DVD disk. Once a disk is input to a media player, the interrogation portion of the media player transmits an interrogation signal to the transponder located on the disk. Once empowered with the interrogation signal, the transponder accesses the predetermined address, code word, encryption algorithms, media type information, and copyright information from it's memory. Then the transponder transmits the address, the code word, encryption algorithms, media type information and copyright information to the interrogator, located within the media player, and the interrogator sends the transponder data stream to a conditional access management processor(CAMP). Simultaneously with the processing action of the CAMP, the interrogator instructs the player to access the data_word at the predetermined address on the disk and the player accesses the data_word on the disk. The media player only plays if there is a match between the read data_word and received code word and the received algorithm correctly decrypts the content of the media prior to decoding.

摘要翻译： 本发明包括将“TIRIS”应答器（或其他RF或IR或条形码或其他识别设备）物理地附接或嵌入到所提出的DVD盘的中心。 一旦磁盘被输入到媒体播放器，媒体播放器的询问部分向位于盘上的应答器发送询问信号。 一旦授权了询问信号，应答器从其存储器访问预定地址，代码字，加密算法，媒体类型信息和版权信息。 然后，应答器将地址，代码字，加密算法，媒体类型信息和版权信息发送到位于媒体播放器内的询问器，并且询问器将转发器数据流发送到条件访问管理处理器（CAMP）。 与CAMP的处理动作同时，询问器指示玩家访问盘上预定地址的数据字，玩家访问盘上的数据字。 如果在读取的数据字和接收的代码字之间存在匹配，则媒体播放器仅播放，并且接收的算法在解码之前正确地解密媒体的内容。