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1. 发明申请

US20180129273A1 Systems and Methods for Rapid Content Switching to Provide a Linear TV Experience Using Streaming Content Distribution 审中-公开
公开(公告)号：US20180129273A1
公开(公告)日：2018-05-10
申请号：US15706264
申请日：2017-09-15
申请人： Verimatrix, Inc.
发明人： Niels J. Thorwirth , Timothy J. Driscoll
IPC分类号： G06F3/01 , H04L29/06
摘要： Systems and methods for rapid content switching between pieces of content presented in a plurality of stations using streaming content distribution in accordance with embodiments of the invention are disclosed. One embodiment includes processing a portion of a station manifest that includes identifiers for content stations and identifiers for pieces of content associated with content stations, selecting jump points that are associated with specific locations within pieces of content, determining a current content station, playing a portion of a current piece of content associated with the current content station, determining alternative pieces of content using the station manifest, preparing additional content for playback at each of the jump points by preparing alternative pieces of content during playback of the current content, receiving a user instruction during playback, selecting a target jump point based upon the user instruction, and commencing playback of additional content starting from the target jump point.

2. 发明授权

US09847979B2 Security and key management of digital content 有权
公开(公告)号：US09847979B2
公开(公告)日：2017-12-19
申请号：US14048970
申请日：2013-10-08
申请人： Verimatrix, Inc.
发明人： Petr Peterka , Niels Thorwirth , Kamil Saykali , Ali Hodjat , Steve Christian , Nikolai Keychenko , Tom Pollard
IPC分类号： H04L29/06 , H04L29/08 , H04W4/18 , H04N21/4408 , H04N21/4627 , G09C5/00 , H04L9/08
CPC分类号： H04L63/0464 , G09C5/00 , H04L9/0866 , H04L67/2823 , H04L2209/60 , H04L2209/76 , H04N21/4408 , H04N21/4627 , H04W4/18
摘要： Managing access to digital content within a particular domain, including: receiving the digital content at a first client device; decrypting the received digital content at the first client device using a first key; transcoding the digital content to another format; re-encrypting the transcoded content using a second key, wherein the second key is obtained by one of: (1) directly from a server; or (2) indirectly by deriving it locally based on information received from the server; and transmitting the re-encrypted content to a second client device, wherein the second client device obtains the second key and decrypts the re-encrypted content at the second client device.

3. 发明授权

US09804668B2 Systems and methods for rapid content switching to provide a linear TV experience using streaming content distribution 有权
公开(公告)号：US09804668B2
公开(公告)日：2017-10-31
申请号：US13945871
申请日：2013-07-18
申请人： Verimatrix, Inc.
发明人： Niels J. Thorwirth , Timothy J. Driscoll
IPC分类号： H04N21/238 , G06F3/01 , H04L29/06 , H04N21/482
CPC分类号： G06F3/01 , H04L65/1086 , H04L65/4076 , H04L65/4084 , H04L65/4092 , H04N21/482
摘要： Systems and methods for rapid content switching between pieces of content presented in a plurality of stations using streaming content distribution in accordance with embodiments of the invention are disclosed. One embodiment includes processing a portion of a station manifest that includes identifiers for content stations and identifiers for pieces of content associated with content stations, selecting jump points that are associated with specific locations within pieces of content, determining a current content station, playing a portion of a current piece of content associated with the current content station, determining alternative pieces of content using the station manifest, preparing additional content for playback at each of the jump points by preparing alternative pieces of content during playback of the current content, receiving a user instruction during playback, selecting a target jump point based upon the user instruction, and commencing playback of additional content starting from the target jump point.

4. 发明授权

US09532113B2 Systems and methods for securing content delivered using a playlist 有权
标题翻译：用于保护使用播放列表传送的内容的系统和方法
公开(公告)号：US09532113B2
公开(公告)日：2016-12-27
申请号：US13579020
申请日：2011-02-17
申请人： Niels J. Thorwirth
发明人： Niels J. Thorwirth
IPC分类号： H04L29/06 , H04N21/8358 , H04N21/2343 , H04N21/262 , H04N21/61 , H04N21/845 , H04N21/858
CPC分类号： H04N21/8358 , H04L9/14 , H04N21/23439 , H04N21/23892 , H04N21/23895 , H04N21/26258 , H04N21/6125 , H04N21/8456 , H04N21/8586
摘要： Systems and methods in accordance with embodiments of the invention enhance the security of content distribution using individualized playlists. In many embodiments, a playlist is individually composed for a client device so that the selection of content included in the playlist encodes information. One embodiment includes generating a watermark sequence, where each watermark sequence is a unique identifier, selecting between alternative chunks of encoded content based upon the watermark sequence, where each of the alternative chunks of encoded content includes the same perceptual content and differs in the way it is watermarked, and listing the selected chunks in a playlist, where content assembled using the playlist includes a unique watermark sequence.
摘要翻译：根据本发明的实施例的系统和方法使用个性化的播放列表来增强内容分发的安全性。在许多实施例中，单独为客户端设备构建播放列表，使得包含在播放列表中的内容的选择对信息进行编码。一个实施例包括生成水印序列，其中每个水印序列是唯一的标识符，基于水印序列在编码的内容的可选块之间进行选择，其中编码的内容的每个替换的块包含相同的感知内容，并且在其方式上不同被加水印，并将所选择的块列在播放列表中，其中使用播放列表组装的内容包括唯一的水印序列。

5. 发明申请

US20160099944A1 Digital Rights Domain Management for Secure Content Distribution in a Local Network 有权
标题翻译：用于本地网络中安全内容分发的数字权限域管理
公开(公告)号：US20160099944A1
公开(公告)日：2016-04-07
申请号：US14970390
申请日：2015-12-15
申请人： Verimatrix, Inc
发明人： Petr Peterka , Niels J. Thorwirth
IPC分类号： H04L29/06 , H04L12/931 , H04L29/08
CPC分类号： H04L63/10 , G06F21/10 , G06F2221/0717 , H04L49/35 , H04L63/0428 , H04L67/32 , H04L67/42 , H04N21/2541 , H04N21/26613 , H04N21/43615 , H04N21/4363 , H04N21/4627
摘要： Systems and methods for secure content distribution to playback devices connected to a local network via a residential gateway using secure links are disclosed. One embodiment of the invention includes a content server, a rights management server, a residential gateway configured to communicate with the content server and the rights management server via a network, and a playback device configured to communicate with the residential gateway via a local network. In addition, the residential gateway is configured to receive protected content from the content server, the playback device is configured to request access to the protected content from the residential gateway, the residential gateway is configured to request access to the protected content from the rights management server and the request includes information uniquely identifying the playback device, the rights management server is configured to provide access information to the residential gateway when the information uniquely identifying the playback device satisfies at least one predetermined criterion with respect to playback devices associated with the residential gateway, the residential gateway and the playback device are configured to create a secure link between the residential gateway and the playback device via the local network, and the residential gateway is configured to decrypt the protected content using the access information provided by the rights management server and to encrypt the decrypted content for distribution to the playback device via the secure link.
摘要翻译：公开了用于通过使用安全链路的住宅网关将安全内容分发给连接到本地网络的回放设备的系统和方法。本发明的一个实施例包括内容服务器，权限管理服务器，被配置为经由网络与内容服务器和权限管理服务器通信的住宅网关，以及被配置为经由本地网络与住宅网关通信的回放设备。此外，住宅网关被配置为从内容服务器接收受保护的内容，回放设备被配置为请求从住宅网关访问受保护内容，住宅网关被配置为请求从权限管理访问受保护内容服务器，并且请求包括唯一地识别回放设备的信息，权限管理服务器被配置为当唯一标识回放设备的信息满足关于与住宅网关相关联的回放设备的至少一个预定标准时，向住宅网关提供访问信息住宅网关和回放设备被配置为经由本地网络在住宅网关和回放设备之间创建安全链路，并且住宅网关被配置为使用由权限管理服务器提供的访问信息来解密受保护的内容并且经解密的内容加密以经由安全链路分发到播放设备。

6. 发明申请

US20130329941A1 EFFICIENT WATERMARKING APPROACHES OF COMPRESSED MEDIA 有权
标题翻译：压缩介质的有效水印方法
公开(公告)号：US20130329941A1
公开(公告)日：2013-12-12
申请号：US13969405
申请日：2013-08-16
申请人： Verimatrix, Inc.
发明人： Niels J. Thorwirth
IPC分类号： G06T1/00
CPC分类号： G06T1/0092 , H04N19/467
摘要： Systems and methods are described for imperceptibly embedding information by identifying locations that can be imperceptibly modified, where the imperceptible modification by replacing original content using replacement content derived from elsewhere in the compressed bitstream to remove at least a portion of the original content, generating at least one piece of replacement data for each identified location, where overwriting a portion of the compressed bitstream with replacement data prevents a decoder from decoding original content due to decoding replacement content derived from elsewhere in the compressed bitstream, selecting pieces of replacement data using an embedding device, where overwriting portions of the compressed bitstream using pieces of replacement data encodes payload information in accordance with a predetermined coding scheme, and embedding the payload information in the compressed bitstream by using the embedding device to overwrite at least a portion of the compressed bitstream with the selected replacement data.
摘要翻译：描述了系统和方法，用于通过识别可以被不可察觉地修改的位置来不可知地嵌入信息，其中通过使用从压缩比特流中的其他地方派生的替换内容替换原始内容来消除不可察觉的修改，以移除原始内容的至少一部分，至少产生每个识别的位置的一条替换数据，其中用替换数据覆盖压缩比特流的一部分防止解码器由于解码来自压缩比特流中其他地方的替换内容而解码原始内容，使用嵌入设备选择替换数据其中，使用多个替换数据重写所述压缩比特流的部分，根据预定的编码方案对所述压缩比特流进行编码，并且通过使用所述嵌入装置将所述有效载荷信息嵌入所述压缩比特流中以覆盖所述compre的至少一部分带有所选择的替换数据。

7. 发明授权

US08191098B2 Multi-source bridge content distribution system and method 有权
标题翻译：多源桥梁内容分发系统及方法
公开(公告)号：US08191098B2
公开(公告)日：2012-05-29
申请号：US11614888
申请日：2006-12-21
申请人： Robin Ross Cooper , Thomas A. Munro
发明人： Robin Ross Cooper , Thomas A. Munro
IPC分类号： H04N7/173
CPC分类号： G06F21/10 , G06Q10/00 , G06Q30/00 , G06Q30/0258 , G06Q30/0273 , G06Q30/04 , G06Q30/0601 , H04N7/17354 , H04N21/2181 , H04N21/222 , H04N21/23106 , H04N21/2543 , H04N21/26208 , H04N21/2665 , H04N21/47202 , H04N21/4788 , H04N21/4828 , H04N21/8355
摘要： A multi-source bridge content distribution system links multiple content owners with access network operators or content distribution providers leasing space on access networks so that multi-media content can be provided from multiple content owners to consumers through a multi-source bridge or data center. Content files and associated content owner preference settings are provided from a plurality of content sources or providers to the multi-source data center. Files stored at the data center or locally at an access network are provided to subscribers through the local access network Content files are provided if the content owner preference settings are a sufficient match with service provider access network preference settings set up by the service provider using the access network to provide content to subscribers.
摘要翻译：多源网桥内容分发系统将多个内容所有者与接入网络运营商或内容分发供应商在接入网络上租用空间进行链接，从而可以通过多源网桥或数据中心从多个内容所有者向消费者提供多媒体内容。从多个内容源或提供者向多源数据中心提供内容文件和相关联的内容所有者偏好设置。存储在数据中心或本地访问网络的文件通过本地访问网络提供给用户如果内容所有者偏好设置与服务提供商使用服务提供商设置的服务提供商访问网络偏好设置充分匹配，则提供内容文件接入网络为用户提供内容。

8. 发明授权

US08127346B2 Network security system and method 有权
标题翻译：网络安全系统和方法
公开(公告)号：US08127346B2
公开(公告)日：2012-02-28
申请号：US12826501
申请日：2010-06-29
申请人： Robert T. Kulakowski , Donovan Steve White
发明人： Robert T. Kulakowski , Donovan Steve White
IPC分类号： H04L29/06
CPC分类号： H04L63/14 , G06F21/31 , G06F21/445 , H04L63/061 , H04L63/1466 , H04N7/162 , H04N21/25816 , H04W12/12
摘要： In a security system for network communications with client devices, each client device has a communication module for communicating with at least one server over a network, a data storage module for storing one or more covert data values of one or more operational events at the client device, and a covert identifier generating module which creates at least one covert identifier based on the stored covert data values. The covert identifier is provided in one or more network messages to the server, or otherwise sent to the service provider, and may be provided in response to a specific request received over the network, or routinely in one or more messages normally involved in network communications. The server compares covert identifiers received from client devices having the same client identifier in order to detect possible clones.
摘要翻译：在用于与客户端设备的网络通信的安全系统中，每个客户端设备具有用于通过网络与至少一个服务器进行通信的通信模块，用于在客户端处存储一个或多个操作事件的一个或多个隐蔽数据值的数据存储模块设备和秘密标识符生成模块，其基于所存储的隐蔽数据值创建至少一个隐蔽标识符。秘密标识符在一个或多个网络消息中提供给服务器，或以其他方式发送到服务提供商，并且可以响应于通过网络接收的特定请求而提供，或者通常在通常涉及网络通信的一个或多个消息中提供。服务器比较从具有相同客户端标识符的客户端设备接收到的隐蔽标识符，以便检测可能的克隆。

9. 发明申请

US20110030065A1 SYSTEMS AND METHODS FOR DETECTING CLONE PLAYBACK DEVICES 有权
标题翻译：用于检测克隆回放装置的系统和方法
公开(公告)号：US20110030065A1
公开(公告)日：2011-02-03
申请号：US12840094
申请日：2010-07-20
申请人： Robert Kulakowski
发明人： Robert Kulakowski
IPC分类号： G06F21/20 , G06F17/30
CPC分类号： H04N21/6334 , H04N21/24 , H04N21/2541 , H04N21/4108
摘要： Systems and methods are described for aggregating information obtained from messages between playback devices and content protection systems, including but not limited to conditional access systems, downloadable conditional access systems, and digital rights management systems, that include a unique identifier and applying user modifiable rules to the aggregated information to identify abnormal behavior associated with the unique identifier including but not limited to one or more clone playback devices utilizing the unique identifier or a rogue playback device utilizing a unique identifier. One embodiment includes a plurality of playback devices connected to a headend via a network, where the headend includes at least one content protection system, and a clone monitor configured to register playback devices based upon a unique identification supplied by each playback device, when communicating with the at least one content protection system. In addition, the clone monitor is configured to aggregate information associated with each playback device over time, where the information is obtained from messages that are transmitted between the playback device and the headend and that include a unique identifier, and the clone monitor is configured to apply rules to the aggregated information to identify at least one pattern of abnormal behavior in the aggregated information associated with a specific unique identifier.
摘要翻译：描述了用于聚合从回放设备和内容保护系统之间的消息获得的信息的系统和方法，包括但不限于条件访问系统，可下载条件访问系统和数字版权管理系统，其包括唯一标识符并将用户可修改的规则应用于用于识别与唯一标识符相关联的异常行为的聚合信息，包括但不限于使用唯一标识符的一个或多个克隆回放设备或利用唯一标识符的流氓回放设备。一个实施例包括经由网络连接到头端的多个回放设备，其中头端包括至少一个内容保护系统，以及克隆监视器，被配置为基于由每个播放设备提供的唯一标识来注册播放设备，当与所述至少一个内容保护系统。此外，克隆监视器被配置为聚集随时间推移与每个回放设备相关联的信息，其中信息从在回放设备和头端之间传送并且包括唯一标识符的消息获得，并且克隆监视器被配置为将规则应用于聚合信息以识别与特定唯一标识符相关联的聚合信息中的至少一种异常行为模式。

10. 发明授权

US10691830B2 Systems and methods for preserving privacy in distribution of digital content using private tokens 有权
公开(公告)号：US10691830B2
公开(公告)日：2020-06-23
申请号：US16067573
申请日：2016-12-30
申请人： Verimatrix, Inc.
发明人： Thomas A. Munro , Niels J. Thorwirth
IPC分类号： G06F21/62 , H04L29/06 , G06Q30/02 , G06Q50/00 , G06Q30/06 , G06Q20/06 , G06F16/951 , G06F21/16 , H04L9/08 , H04L9/30 , H04L9/32
摘要： Systems and methods for preserving privacy in distribution of content using private tokens in accordance with embodiments of the invention are disclosed. In one embodiment, a method of anonymously tracking a digital content and remediating unauthorized distribution includes generating a private token including an identifier distinguishable from tokens generated by other playback devices and the association with the playback device is not shared, receiving a portion of content, embedding a digital watermark in the content, where the digital watermark includes the private token, detecting an unauthorized copy of the content, extracting the digital watermark from the unauthorized copy of the content, broadcasting an enforcement message containing the private token to the playback devices, receiving the enforcement message, and performing an enforcement action on the playback device in response, where only a playback device that generated the private token responds.

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