IP TV With DRM
    4.
    发明申请
    IP TV With DRM 审中-公开
    IP电视带DRM

    公开(公告)号:US20110113443A1

    公开(公告)日:2011-05-12

    申请号:US12849176

    申请日:2010-08-03

    IPC分类号: H04N7/16 H04N7/167

    摘要: A method of decrypting DRM encoded content in a DTV receiver involves receiving an encrypted license from a license server at the DTV receiver; providing a unique identifier for an integrated DTV SoC forming a part of the DTV television receiver; storing a secret key in an electronic fuse memory forming a part of the SoC, where the secret key is generated using an algorithm that utilizes the unique identifier for the SoC; where the received encrypted license is encrypted using the same secret key as is stored in the electronic fuse memory; decrypting the secret key using the key stored in the electronic fuse memory to produce a clear secret key; decrypting the encrypted license using the clear secret key to determine a content key; storing the license; and decrypting the DRM encoded content using the content key. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

    摘要翻译: 在DTV接收机中解密DRM编码的内容的方法包括从DTV接收机的许可证服务器接收加密许可证; 为形成DTV电视接收机的一部分的集成DTV SoC提供唯一标识符; 将秘密密钥存储在形成SoC的一部分的电子熔丝存储器中,其中使用利用SoC的唯一标识符的算法来生成秘密密钥; 其中所接收的加密许可证使用与存储在电子熔丝存储器中的相同的密钥进行加密; 使用存储在电子熔丝存储器中的密钥对密钥进行解密以产生明确的秘密密钥; 使用所述清除密钥解密所述加密的许可证以确定内容密钥; 存放许可证; 以及使用所述内容密钥解密所述DRM编码的内容。 该摘要不被认为是限制性的,因为其他实施例可能偏离本摘要中描述的特征。

    Multiple DRM management
    5.
    发明授权

    公开(公告)号:US09406066B2

    公开(公告)日:2016-08-02

    申请号:US12386629

    申请日:2009-04-21

    IPC分类号: G06Q20/38 H04L29/06 H04L9/08

    摘要: A DRM packager has a programmed processor for receipt of licensing information including a plurality of encryption keys for a corresponding plurality of DRM encryption algorithms and for receipt of content from a content provider. An encrypter encrypts the content under each of the plurality of DRM algorithms to produce multiple DRM selectively encrypted content, where the multiple DRM selectively encrypted content has segments of the specified content that are unencrypted, and selected segments of the content which are duplicated to produce one copy of the selected content for each of the DRM algorithms with each duplicate copy of the selected segments encrypted under a different one of the DRM algorithms, and where the unencrypted segments of content are assembled together with each of the DRM encrypted duplicate selected segments to produce a single unified content assembly that can be played on any of the player devices. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

    Method for detection of a hacked decoder
    6.
    发明授权
    Method for detection of a hacked decoder 有权
    用于检测被黑客解码器的方法

    公开(公告)号:US08824685B2

    公开(公告)日:2014-09-02

    申请号:US12195660

    申请日:2008-08-21

    摘要: A method of identifying a receiver device from which pirated video decryption keys have been obtained consistent with certain embodiments involves organizing a population of receiver devices into a plurality of N groups; associating the N groups with a plurality of N decryption keys, where each of the N groups is associated with one of the N decryption keys, where the N decryption keys are used for either decryption of content or decryption of other decryption keys; causing the plurality of N decryption keys to be obtained by their associated N groups of receiver devices by direct delivery or by derivation at the receiver devices; and identifying a pirated key as being associated with one of the N groups so as to identify the receiver device from which the pirated video decryption keys have been obtained as belonging to one of the N groups. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

    摘要翻译: 根据某些实施例,识别已经获得盗版视频解密密钥的接收机设备的方法涉及将多个接收机设备组合成多个N个组; 将N个组与多个N个解密密钥相关联,其中N个组中的每一个与N个解密密钥中的一个相关联,其中N个解密密钥用于解密内容或解密其他解密密钥; 通过直接传递或通过在接收机设备处的推导,由其相关联的N组接收机设备获得多个N个解密密钥; 以及将盗版密钥识别为与所述N个组中的一个相关联,以便将已经获得所述盗版视频解密密钥的接收机设备识别为属于所述N个组之一。 该摘要不被认为是限制性的,因为其他实施例可能偏离本摘要中描述的特征。

    Capture of stylized TV table data via OCR
    7.
    发明授权
    Capture of stylized TV table data via OCR 有权
    通过OCR捕获风格化的电视表数据

    公开(公告)号:US08763038B2

    公开(公告)日:2014-06-24

    申请号:US12321856

    申请日:2009-01-26

    IPC分类号: G06F3/00 G06F13/00 H04N5/445

    摘要: In certain implementations consistent with the present invention, a method of detecting text in a television video display table involves saving a frame of video to a memory device; determining that the frame of video contains a table having cells containing text; storing a working copy of the frame of video to a memory; isolating text in the table by: removing any table boundaries from the image; removing any cell boundaries from the image; determining if the image has three dimensional or shadow attributes and removing any three dimensional or shadow attributes identified; thereby producing text isolated against a contrasting color background; and processing the isolated text using an optical character recognition (OCR) engine to extract the text as data. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

    摘要翻译: 在符合本发明的某些实施方式中,检测电视视频显示表中的文本的方法包括将视频帧保存到存储器设备; 确定视频帧包含具有包含文本的单元格的表; 将视频帧的工作副本存储到存储器中; 通过以下方式隔离表中的文本:从图像中删除任何表格边界; 从图像中移除任何单元格边界; 确定图像是否具有三维或阴影属性并去除所识别的任何三维或阴影属性; 从而产生与对比色彩背景隔离的文本; 并使用光学字符识别(OCR)引擎来处理孤立的文本,以将数据提取为数据。 该摘要不被认为是限制性的,因为其他实施例可能偏离本摘要中描述的特征。

    Digital rights management of a digital device
    8.
    发明授权
    Digital rights management of a digital device 有权
    数字设备的数字版权管理

    公开(公告)号:US08572408B2

    公开(公告)日:2013-10-29

    申请号:US10962830

    申请日:2004-10-11

    IPC分类号: G06F11/30 G06F12/14 G06F21/00

    摘要: According to one embodiment, an apparatus involves the descrambling of scrambled digital content using a one-time programmable key and digital rights management. The apparatus comprises a processor and a descrambler. The processor is adapted to execute a Digital Rights Management (DRM) function in order to determine whether each entitlement needed to access the digital content is pre-stored. The descrambler is adapted to decrypt encrypted information using a Unique Key stored within the one-time programmable memory. After determining that each entitlement needed to access the digital content is pre-stored, the decrypted information is used to generate a key, which is used to decrypt at least one service key for descrambling the scrambled digital content.

    摘要翻译: 根据一个实施例,一种装置涉及使用一次性可编程密钥和数字权限管理对加扰的数字内容进行解扰。 该装置包括处理器和解扰器。 处理器适于执行数字版权管理(DRM)功能,以便确定是否预先存储了访问数字内容所需的每个权利。 解扰器适于使用存储在一次性可编程存储器中的唯一密钥来解密加密信息。 在确定访问数字内容所需的每个权利被预先存储之后,解密的信息被用于生成一个密钥,该密钥用于对至少一个服务密钥进行解密以对加扰的数字内容进行解扰。

    Content replacement by PID mapping
    9.
    发明授权
    Content replacement by PID mapping 有权
    通过PID映射进行内容替换

    公开(公告)号:US08453172B2

    公开(公告)日:2013-05-28

    申请号:US12877240

    申请日:2010-09-08

    IPC分类号: H04N7/025 H04N7/10

    摘要: A method of content substitution involves receiving an ordered stream of packets containing content marked by a first packet identifier (PID) and one or more substitute content portions marked by one or more secondary PIDs, where the number and placement of packets marked by secondary PIDs ahead of packets marked by the first PID in the stream is retained during transmission of the ordered stream of packets; the ordered stream of packets have an odd or even number of packets with the PIDs after a packet with a first PID; initiating processing for display or storage of content contained in packets having the first PID; initiating processing for display or storage of content contained in packets having a selected secondary PID that meets a substitution criterion; and either deleting or processing the content having the first PID depending upon a number of received intervening packets having secondary PIDs that reside between the packets having the first PID and the packets having the selected secondary PID that meets the substitution criterion, where deleting or processing is determined by whether the number of packets is an odd or an even number. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

    摘要翻译: 内容替换的方法包括接收包含由第一分组标识符(PID)标记的内容的分组的有序流,以及由一个或多个辅助PID标记的一个或多个替代内容部分,其中由辅助PID标记的分组的数量和位置在前面 在流的有序流的传输期间保留在流中由第一PID标记的分组; 在具有第一PID的分组之后,分组的有序流具有具有PID的奇数或偶数数量的分组; 启动用于显示或存储包含在具有第一PID的分组中的内容的处理; 启动处理以显示或存储包含在具有满足替代标准的所选次要PID的分组中的内容; 并且根据具有第二PID的接收到的具有辅助PID的中间分组的数量,删除或处理具有第一PID的内容,并且具有满足替代标准的具有所选择的辅助PID的分组,其中删除或处理是 由分组数是奇数还是偶数确定。 该摘要不被认为是限制性的,因为其他实施例可能偏离本摘要中描述的特征。