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1. 发明申请

WO2005091547A2 WATERMARK PAYLOAD ENCRYPTION METHODS AND SYSTEMS 审中-公开
标题翻译： WATERMARK PAYLOAD加密方法和系统
公开(公告)号：WO2005091547A2
公开(公告)日：2005-09-29
申请号：PCT/US2005/009072
申请日：2005-03-18
申请人： DIGIMARC CORPORATION , SHARMA, Ravi, K. , RAMOS, Daniel, O. , RODRIGUEZ, Tony, F. , LEVY, Kenneth, L.
发明人： SHARMA, Ravi, K. , RAMOS, Daniel, O. , RODRIGUEZ, Tony, F. , LEVY, Kenneth, L.
IPC分类号： H04L9/00
CPC分类号： G06T1/0071 , G10L19/018 , H04L9/3236 , H04L9/3247 , H04L2209/34 , H04L2209/608 , H04N1/32144 , H04N1/32149 , H04N2201/3236 , H04N2201/3281 , H04N2201/3284
摘要： The present invention provides a method of securing messages steganographically embedded in media (e.g., printed or electronic objects, audio and video). In one implementation, a message includes a first portion and a second portion. The first portion includes a first message and a first checksum, which are encrypted with a private key. The encrypted first portion is combined with the second portion. The second portion includes a second message and as second checksum. The combined encrypted first portion and the second portion form a signature. The signature is encrypted with a common or universal key, perhaps after error correction coding. The private key is uniquely associated with an entity such as a document issuing jurisdiction. In another implementation, a method appends information to a watermark message received from a remote device. In yet another implementation, a method provides standardized watermark payloads from various input data, regardless of the size of the input data. In another implementation, we encrypt one of two different cooperating watermark payloads, but the encryption and payload data structure help to authenticate both payloads. Another implementation provides a three encryption key pair system for managing messages and watermark embedding. Still another aspect of the invention is a watermark embedding process that uses encryption to whiten, randomize or spread message, instead of convention spread-spectrum modulation.
摘要翻译：本发明提供了一种保护隐藏在媒体（例如，印刷或电子对象，音频和视频）中的信息的方法。在一个实现中，消息包括第一部分和第二部分。第一部分包括用私钥加密的第一消息和第一校验和。加密的第一项与第二部分组合。第二部分包括第二消息和第二校验和。组合加密的第一部分和第二部分形成签名。签名在公共密钥或通用密钥之间进行加密，也许在纠错编码之后。私钥与诸如发布管辖区的文档等实体唯一相关联。

2. 发明申请

WO0161508A9 WATERMARK ENCODER AND DECODER ENABLED SOFTWARE AND DEVICES 审中-公开
标题翻译： WATERMARK编码器和解码器启用的软件和设备
公开(公告)号：WO0161508A9
公开(公告)日：2002-10-31
申请号：PCT/US0104812
申请日：2001-02-14
申请人： DIGIMARC CORP , RAMOS DANIEL O , JONES KEVIN C , RHOADS GEOFFREY B
发明人： RAMOS DANIEL O , JONES KEVIN C , RHOADS GEOFFREY B
IPC分类号： G06T1/00 , G06F13/00 , G06F15/16 , G06F17/30 , G06Q10/00 , G06Q30/00 , G09C5/00 , H04L9/00 , H04N1/387 , H04N7/08 , H04N7/081
CPC分类号： G06Q30/02 , G06F17/30876 , G06F2221/0737 , G06Q10/107
摘要： Watermark encoders and decoders are integrated into operating systems, Internet browsers (300), media players, and other applications and devices. Such integration enables the watermark-enabled application (304) or device to provide additional functionality and information (302) available via the watermark. The watermark, for example, may link to metadata or actions related to a media object. To exploit this watermark enabled functionality, the integrated application uses a watermark decoder to access the related metadata and actions. The user interface of the integrated application is enhanced to present metadata and actions linked via the watermark. Similarly, watermark encoders may be integrated into applications to convert media objects into enhanced, watermarked objects.
摘要翻译：水印编码器和解码器集成到操作系统，互联网浏览器（300），媒体播放器以及其他应用和设备中。这种集成使得支持水印的应用（304）或设备能够提供经由水印可用的附加功能和信息（302）。例如，水印可以链接到与媒体对象相关的元数据或动作。为了利用该水印启用功能，集成应用程序使用水印解码器来访问相关的元数据和动作。集成应用的用户界面被增强以呈现通过水印链接的元数据和动作。类似地，水印编码器可以集成到应用中以将媒体对象转换成增强的带水印的对象。

3. 发明申请

WO2005091547A3 WATERMARK PAYLOAD ENCRYPTION METHODS AND SYSTEMS 审中-公开
标题翻译：水印有效加密方法和系统
公开(公告)号：WO2005091547A3
公开(公告)日：2005-10-27
申请号：PCT/US2005009072
申请日：2005-03-18
申请人： DIGIMARC CORP , SHARMA RAVI K , RAMOS DANIEL O , RODRIGUEZ TONY F , LEVY KENNETH L
发明人： SHARMA RAVI K , RAMOS DANIEL O , RODRIGUEZ TONY F , LEVY KENNETH L
IPC分类号： G06T1/00 , G10L19/018 , H04L9/00 , H04L9/32 , H04N1/32
CPC分类号： G06T1/0071 , G10L19/018 , H04L9/3236 , H04L9/3247 , H04L2209/34 , H04L2209/608 , H04N1/32144 , H04N1/32149 , H04N2201/3236 , H04N2201/3281 , H04N2201/3284
摘要： The present invention provides a method of securing messages steganographically embedded in media (e.g., printed or electronic objects, audio, and video). In one implementation, a message inclues a first portion and a second portion. The first portion includes a first message and a first checksum, which are encrypted with a private key. The encrypted first protion is combined with the second portion. The second portion includes a second message and a second checksum. The combined encrypted first portion and the second portion form a signature. The signature is encrypted wth a common key or universal key, perhaps after error correction coding. The private key is uniquely associated with an entity such as a document issuing jurisdiction.
摘要翻译：本发明提供了一种保密隐写在媒体（例如印刷或电子对象，音频和视频）中的消息的方法。在一个实现中，消息包括第一部分和第二部分。第一部分包括用私钥加密的第一消息和第一校验和。加密的第一部分与第二部分组合。第二部分包括第二消息和第二校验和。组合的加密的第一部分和第二部分形成签名。可能在纠错编码之后，使用共用密钥或通用密钥对签名进行加密。私钥与诸如文件发布管辖权之类的实体具有唯一关联。

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