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    • 2. 发明授权
    • Transmission system
    • 传输系统
    • US08837533B2
    • 2014-09-16
    • US13090809
    • 2011-04-20
    • Susumu IbarakiAkihiro YamamotoToshiaki Mori
    • Susumu IbarakiAkihiro YamamotoToshiaki Mori
    • H04J3/02G11B20/00H04H20/88G11B20/10
    • H04H20/88G11B20/00086G11B20/00181G11B20/0021G11B20/00507G11B20/00746G11B20/00775G11B20/00818G11B20/10527
    • The present invention provide a transmission system comprising a transmission apparatus for transmitting audio data of multi channels and auxiliary data required for playback of the audio data, and a receiving apparatus for receiving the audio data and the auxiliary data which are transmitted by the transmission apparatus. A multiplexer of the transmission apparatus creates block data that is composed of 8 frames, and first 1 byte of each frame is allocated to a header having Sync, OE and the like, the second byte is allocated to the auxiliary data including AUX data and copyright protect information, and remaining bytes are used to transmit the audio data. An encryptor carries out an encryption process for the second and later bytes of each frame, and a communication means outputs encrypted data. A communication means of the receiving apparatus receives the encrypted data from the transmission apparatus, a decoder decodes the encrypted data, and a demultiplexer demultiplexes the audio data and the auxiliary data. Therefore, this transmission system transmits multi-channel audio data of the DVD-Audio or the like efficiently on a transmission line using fixed length frames according to the MOST method, and takes measures for copyright protection of audio data.
    • 本发明提供一种传输系统,包括用于发送多声道的音频数据的传输装置和用于播放音频数据所需的辅助数据,以及接收装置,用于接收由发送装置发送的音频数据和辅助数据。 传输装置的多路复用器产生由8帧组成的块数据,并且每帧的前1个字节被分配给具有Sync,OE等的标题,第二字节被分配给包括AUX数据和版权的辅助数据 保护信息,剩余字节用于传输音频数据。 加密器对每帧的第二和后续字节执行加密处理,并且通信装置输出加密的数据。 接收装置的通信装置从发送装置接收加密数据,解码器对加密数据进行解码,解复用器对音频数据和辅助数据进行解复用。 因此,该传输系统根据MOST方法使用固定长度的帧在传输线上有效地发送DVD音频等的多声道音频数据,并且采取音频数据的版权保护的措施。
    • 6. 发明授权
    • Information processing apparatus
    • 信息处理装置
    • US08752209B2
    • 2014-06-10
    • US12740683
    • 2008-10-29
    • Ryo Goto
    • Ryo Goto
    • G06F21/00
    • G11B20/00753G06F21/10G11B20/00086G11B20/00181G11B2220/61H04N5/76H04N5/765H04N5/907H04N5/913H04N21/418H04N21/4334H04N21/8355H04N2005/91328
    • An information processing apparatus (100) is provided with a memory unit (130) for storing digital broadcast content for which a number of copies that can be made is set, a writing unit (160, 162) for writing the content on external recording medium, an IC medium reader/writer (150) for reading an IC medium (300) and recording the number of copies that can be made of the content on the IC medium (300) in association with an identifier of the content, and a control unit (170) for determining whether an identifier of the content is recorded on the IC medium (300) when the content is copied to the external recording medium and, when it is determined that the identifier is recorded, controlling the writing unit (160, 162) to write the content on external recording medium (210, 220) as well as controlling the IC medium reader/writer (150) to update the number of copies that can be made of the content.
    • 一种信息处理设备(100),具有存储单元(130),用于存储可设置多个副本的数字广播内容;写入单元(160,162),用于将内容写入外部记录介质 ,用于读取IC介质(300)的IC介质读取器/写入器(150),并且与IC内容的标识符相关联地将记录在IC介质(300)上的内容的副本记录在一起;以及控制 单元(170),用于当将内容复制到外部记录介质时,确定内容的标识符是否被记录在IC介质(300)上,并且当确定标识符被记录时,控制写入单元(160, 162)将内容写入外部记录介质(210,220),以及控制IC介质读取器/写入器(150)来更新可由内容构成的份数。
    • 7. 发明授权
    • Playback device, recording medium, playback method and program
    • 播放装置,记录介质,播放方法和程序
    • US08588580B2
    • 2013-11-19
    • US13016066
    • 2011-01-28
    • Keiichi TanakaHidetaka Oto
    • Keiichi TanakaHidetaka Oto
    • H04N9/80H04N5/92
    • H04N5/913G06F21/445G06F21/52G06F21/79G11B20/00086G11B20/00173G11B20/00181G11B20/00224G11B20/00862G11B27/105G11B2220/2541H04N5/765H04N5/907H04N9/8205H04N2005/91328H04N2005/91357
    • A bytecode processing unit provided in a playback device is platform unit 20 that reads and runs a bytecode application recorded on read-only medium 105. The playback device includes: playback control unit 10 for controlling AV playback of digital streams; and machine unique function control unit 33 for performing machine unique functions unique to the playback device, to perform a control onto a content. APIs used by the bytecode application include API for playback control function, and API for socket communication. When the bytecode application requests playback control unit 10 to control the playback, it calls the playback control API to can instruct playback control unit 10 to execute the process. When the bytecode application requests execution of a machine unique function of the playback device, it instructs a machine unique function control unit to perform the process via a function call by the socket communication API.
    • 设置在再现装置中的字节码处理单元是读取并运行记录在只读介质105上的字节码应用的平台单元20.回放设备包括:用于控制数字流的AV回放的回放控制单元10; 以及机器独特的功能控制单元33,用于执行重放设备独有的机器独特功能,以对内容执行控制。 字节码应用程序使用的API包括用于播放控制功能的API和用于套接字通信的API。 当字节码应用程序请求播放控制单元10控制播放时,它呼叫播放控制API以指示播放控制单元10执行该过程。 当字节码应用程序请求执行重放设备的机器唯一功能时,它指示机器唯一功能控制单元通过套接字通信API的功能调用来执行处理。