会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 24. 发明申请
    • Methods and Apparatus for Persistent Control and Protection of Content
    • 持久控制和内容保护的方法和装置
    • US20070211891A1
    • 2007-09-13
    • US11747781
    • 2007-05-11
    • Talal ShamoonRalph HillChris RadcliffeJohn Hwa
    • Talal ShamoonRalph HillChris RadcliffeJohn Hwa
    • H04L9/18
    • H04N21/43853H04L9/14H04L63/0428H04L63/10H04L2209/603H04L2209/605H04L2209/64H04L2463/101H04N7/167H04N7/1675H04N21/23476H04N21/23605H04N21/2541H04N21/26613H04N21/4343H04N21/4405H04N21/44055H04N21/44204H04N21/4627H04N21/812H04N21/8193H04N21/835H04N21/8352H04N21/8355H04N21/8358
    • A novel method and apparatus for protection of streamed media content is disclosed. In one aspect, the apparatus includes control means for governance of content streams or content objects, decryption means for decrypting content streams or content objects under control of the control means, and feedback means for tracking actual use of content streams or content objects. The control means may operate in accordance with rules received as part of the streamed content, or through a side-band channel. The rules may specify allowed uses of the content, including whether or not the content can be copied or transferred, and whether and under what circumstances received content may be “checked out” of one device and used in a second device. The rules may also include or specify budgets, and a requirement that audit information be collected and/or transmitted to an external server. In a different aspect, the apparatus may include a media player designed to call plugins to assist in rendering content. A “trust plugin” is disclosed, along with a method of using the trust plugin so that a media player designed for use with unprotected content may render protected content without the necessity of requiring any changes to the media player. In one aspect, the streamed content may be in a number of different formats, including MPEG-4, MP3, and the RMFF format.
    • 公开了一种用于保护流媒体内容的新颖方法和装置。 一方面,该装置包括用于控制内容流或内容对象的控制装置,用于在控制装置的控制下解密内容流或内容对象的解密装置,以及用于跟踪内容流或内容对象的实际使用的反馈装置。 控制装置可以根据作为流式内容的一部分接收的规则或者通过边带信道来操作。 规则可以指定内容的允许使用,包括是否可以复制或传送内容,以及是否在什么情况下接收内容可能被“检出”一个设备并在第二设备中使用。 规则还可以包括或指定预算,以及将审计信息收集和/或传送到外部服务器的要求。 在不同的方面,设备可以包括被设计为调用插件来辅助呈现内容的媒体播放器。 公开了一种“信任插件”,以及使用信任插件的方法,使得设计用于不受保护的内容的媒体播放器可以呈现受保护的内容,而不需要对媒体播放器进行任何改变。 在一个方面,流传输的内容可​​以是多种不同的格式,包括MPEG-4,MP3和RMFF格式。
    • 28. 发明授权
    • Methods and systems for encoding and protecting data using digital signature and watermarking techniques
    • 使用数字签名和水印技术编码和保护数据的方法和系统
    • US07107452B2
    • 2006-09-12
    • US11209238
    • 2005-08-22
    • Xavier Serret-AvilaGilles Boccon-Gibod
    • Xavier Serret-AvilaGilles Boccon-Gibod
    • H06F1/26
    • G06F21/10G06F2221/07G06T1/0071G11B20/00086G11B20/00123G11B20/00884G11B20/00898H04L9/3236H04L9/3247H04L2209/608H04N1/32144H04N1/32208H04N1/32283H04N1/32288H04N1/32293H04N1/32304H04N1/3232H04N5/913H04N7/162H04N19/00H04N19/467H04N21/23892H04N21/4627H04N21/8358H04N2005/91335H04N2201/3235
    • Systems and methods are provided for protecting and managing electronic data signals that are registered in accordance with a predefined encoding scheme, while allowing access to unregistered data signals. In one embodiment a relatively hard-to-remove, easy-to-detect, strong watermark is inserted in a data signal. The data signal is divided into a sequence of blocks, and a digital signature for each block is embedded in the signal via a watermark. The data signal is then stored and distributed on, e.g., a compact disc, a DVD, or the like. When a user attempts to access or use a portion of the data signal, the signal is checked for the presence of a watermark containing the digital signature for the desired portion of the signal. If the watermark is found, the digital signature is extracted and used to verify the authenticity of the desired portion of the signal. If the signature-containing watermark is not found, the signal is checked for the presence of the strong watermark. If the strong watermark is found, further use of the signal is inhibited, as the presence of the strong watermark, in combination with the absence or corruption of the signature-containing watermark, provides evidence that the signal has been improperly modified. If, on the other hand, the strong mark is not found, further use of the data signal can be allowed, as the absence of the strong mark indicates that the data signal was never registered with the signature-containing watermark.
    • 提供了系统和方法,用于保护和管理根据预定编码方案注册的电子数据信号,同时允许访问未注册的数据信号。 在一个实施例中,相对难以移除的易于检测的强水印被插入到数据信号中。 数据信号被分成块序列,每个块的数字签名通过水印被嵌入在信号中。 然后将数据信号存储并分布在例如光盘,DVD等上。 当用户尝试访问或使用数据信号的一部分时,检查信号是否存在包含用于信号的期望部分的数字签名的水印。 如果发现水印,则提取数字签名并用于验证信号所需部分的真实性。 如果没有找到包含签名的水印,则检查该信号是否存在强水印。 如果发现强水印,则抑制了信号的进一步使用,因为强水印的存在与含签名的水印的不存在或破坏相结合,提供了信号被不正确地修改的证据。 另一方面,如果没有发现强标记,则可以允许进一步使用数据信号,因为没有强标记表示数据信号从未向含有签名的水印注册。