公开(公告)号：US09552486B2

公开(公告)日：2017-01-24

申请号：US14627273

申请日：2015-02-20

Applicant: Exaimage Corporation

Inventor： Jaime Milstein

IPC: H04L29/06 ,  G06F21/60 ,  H04N21/4627 ,  H04N21/2347 ,  H04N21/258 ,  G09C5/00 ,  H04N19/44 ,  H04N19/63 ,  H04N21/426 ,  H04N21/435 ,  H04N21/4385 ,  H04N21/4405

CPC classification number: G06F21/602 ,  G09C5/00 ,  H04L2209/34 ,  H04N19/44 ,  H04N19/63 ,  H04N21/23476 ,  H04N21/25883 ,  H04N21/42623 ,  H04N21/435 ,  H04N21/43856 ,  H04N21/44055 ,  H04N21/4627

Abstract: Systems and methods for content-protecting video codecs are described. At least one embodiment of the invention comprises a system for protecting video content comprising computer memory comprising a stored set of instructions for processing video data; and at least one microprocessor configured to process the video data according to the stored set of instructions, the stored set of instructions requiring identification of data to be removed, at least a portion of which is essential to obtaining a visually acceptable reproduction of video, the stored set of instructions being further configured to replace removed data with data-hiding values, wherein the visually acceptable reproduction of video cannot be generated without a key that enables recovery of enough of the removed data from the data-hiding values that replaced the removed data.

Abstract translation: 描述了内容保护视频编解码器的系统和方法。 本发明的至少一个实施例包括一种用于保护包括计算机存储器的视频内容的系统，该计算机存储器包括用于处理视频数据的存储的一组指令; 以及至少一个微处理器，被配置为根据存储的指令集来处理视频数据，所存储的指令集需要识别待移除的数据，其中至少一部分对于获得视觉上可视的再现视频是至关重要的， 存储的指令集进一步被配置为用数据隐藏值替换去除的数据，其中不可能生成视觉上可接受的视频再现，而无需使用能够从取代去除数据的数据隐藏值中恢复足够的已移除数据的密钥 。

公开(公告)号：US09167280B2

公开(公告)日：2015-10-20

申请号：US14044847

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Christopher Wingert ,  Pooja Aggarwal

IPC: G06F21/00 ,  H04N21/2347 ,  H04N7/167 ,  H04N21/2389 ,  H04N21/254 ,  H04N21/414 ,  H04N21/4385 ,  H04N21/835 ,  H04N21/84 ,  H04N21/845 ,  H04N21/854 ,  H04N21/235 ,  H04N21/435 ,  G06F21/60

CPC classification number: H04N21/2347 ,  G06F21/60 ,  G06F21/602 ,  H04N7/1675 ,  H04N21/235 ,  H04N21/23897 ,  H04N21/2541 ,  H04N21/41407 ,  H04N21/435 ,  H04N21/43856 ,  H04N21/835 ,  H04N21/84 ,  H04N21/8455 ,  H04N21/85406

Abstract: A method is disclosed for encrypting a multimedia file including parsing the multimedia file to identify a media data portion; encrypting the media data portion; and, combining the encrypted media data portion with a non-encrypted non-media data portion. A method is also disclosed for playing a multimedia file including parsing the multimedia file to identify an unencrypted metadata portion; using the unencrypted metadata portion to locate a position of interest in the media file, the position of interest having an associated encrypted media data portion; and, decrypting the associated encrypted media data portion. An apparatus for performing the methods is also disclosed herein.

Abstract translation: 公开了一种加密多媒体文件的方法，包括解析多媒体文件以识别媒体数据部分; 加密媒体数据部分; 以及将加密的媒体数据部分与未加密的非媒体数据部分组合。 还公开了播放多媒体文件的方法，包括解析多媒体文件以识别未加密的元数据部分; 使用未加密的元数据部分来定位媒体文件中感兴趣的位置，感兴趣的位置具有相关联的加密媒体数据部分; 以及解密相关联的加密媒体数据部分。 本文还公开了一种用于执行该方法的装置。

公开(公告)号：US08971532B1

公开(公告)日：2015-03-03

申请号：US13778523

申请日：2013-02-27

Applicant: Jaime Milstein

Inventor： Jaime Milstein

IPC: G06F21/00 ,  G06F21/60

CPC classification number: G06F21/602 ,  G09C5/00 ,  H04L2209/34 ,  H04N19/44 ,  H04N19/63 ,  H04N21/23476 ,  H04N21/25883 ,  H04N21/42623 ,  H04N21/435 ,  H04N21/43856 ,  H04N21/44055 ,  H04N21/4627

Abstract: Systems and methods for content-protecting video codecs are described. At least one embodiment of the invention comprises a system for protecting video content comprising computer memory comprising a stored set of instructions for processing video data; and at least one microprocessor configured to process the video data according to the stored set of instructions, the stored set of instructions requiring identification of data to be removed, at least a portion of which is essential to obtaining a visually acceptable reproduction of video, the stored set of instructions being further configured to replace removed data with data-hiding values, wherein the visually acceptable reproduction of video cannot be generated without a key that enables recovery of enough of the removed data from the data-hiding values that replaced the removed data.

Abstract translation: 描述了内容保护视频编解码器的系统和方法。 本发明的至少一个实施例包括一种用于保护包括计算机存储器的视频内容的系统，该计算机存储器包括用于处理视频数据的存储的一组指令; 以及至少一个微处理器，被配置为根据存储的指令集来处理视频数据，所存储的指令集需要识别待移除的数据，其中至少一部分对于获得视觉上可视的再现视频是至关重要的， 存储的指令集进一步被配置为用数据隐藏值替换去除的数据，其中不可能生成视觉上可接受的视频再现，而无需使用能够从取代去除数据的数据隐藏值中恢复足够的已移除数据的密钥 。

公开(公告)号：US20120250860A1

公开(公告)日：2012-10-04

申请号：US13499747

申请日：2010-07-23

Applicant: Pablo Perez Garcia ,  Jaime Ruiz Alonso

Inventor： Pablo Perez Garcia ,  Jaime Ruiz Alonso

IPC: H04N7/167

CPC classification number: H04N7/162 ,  H04N21/23897 ,  H04N21/43856

Abstract: Apparatus for encrypting a stream of audiovisual data generated by an encoder (11); comprises an encrypter (113) module that analyses the data stream to determine if said stream includes at least one slice relative to a layer of video codification; for encrypting at least a set of bit nearby or adjacent to a slice header; and inserts the generated encrypted set of bit into the data stream that will be transported by a digital telecommunications network (12) to a customer's local equipment.

Abstract translation: 用于加密由编码器（11）产生的视听数据流的装置; 包括加密器（113）模块，其分析数据流以确定所述流是否包括相对于视频编码层的至少一个切片; 用于加密至少一组邻近或相邻于片头的比特; 并将所生成的加密的一组位插入将由数字电信网络（12）传送到客户的本地设备的数据流中。

公开(公告)号：US08103000B2

公开(公告)日：2012-01-24

申请号：US12661400

申请日：2010-03-16

Applicant: Brant L. Candelore ,  Henry Derovanessian ,  Leo M. Pedlow, Jr.

Inventor： Brant L. Candelore ,  Henry Derovanessian ,  Leo M. Pedlow, Jr.

IPC: H04N7/167 ,  G06F12/14

CPC classification number: H04K1/00 ,  H04L9/14 ,  H04L2209/60 ,  H04N5/783 ,  H04N5/913 ,  H04N7/162 ,  H04N7/163 ,  H04N7/165 ,  H04N7/1675 ,  H04N7/52 ,  H04N9/7925 ,  H04N21/234345 ,  H04N21/23439 ,  H04N21/23476 ,  H04N21/235 ,  H04N21/236 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/238 ,  H04N21/23897 ,  H04N21/25435 ,  H04N21/25833 ,  H04N21/25875 ,  H04N21/26606 ,  H04N21/2668 ,  H04N21/4331 ,  H04N21/4333 ,  H04N21/434 ,  H04N21/4344 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/435 ,  H04N21/43607 ,  H04N21/43856 ,  H04N21/440245 ,  H04N21/440281 ,  H04N21/44055 ,  H04N21/4516 ,  H04N21/454 ,  H04N21/458 ,  H04N21/4623 ,  H04N21/47202 ,  H04N21/63345 ,  H04N21/812 ,  H04N21/835 ,  H04N2005/91364

Abstract: A selective encryption encoder consistent with certain embodiments of the invention has vertical and/or horizontal stripes encrypted. In one embodiment, packets are examined in the digital video signal to identify a specified packet type, the specified packet type being both packets carrying intra-coded data representing a pattern of horizontal stripes across an image and packets carrying intra-coded data representing a pattern of vertical stripes across an image. The packets identified as being of the specified packet type are encrypted using a first encryption method to produce first encrypted packets. These first encrypted packets are then used to replace the unencrypted packets in the digital video signal to produce a partially encrypted video signal. The packets of the specified type can also be multiple encrypted and replaced in the data stream to produce a multiple encrypted video data stream. This abstract is not to be considered limiting since embodiments consistent with the present invention may incorporate more, fewer or differing elements than mentioned in this abstract.

Abstract translation: 与本发明的某些实施例一致的选择性加密编码器具有加密的垂直和/或水平条纹。 在一个实施例中，在数字视频信号中检查分组以识别指定的分组类型，所指定的分组类型是两个分组，这两个分组类型是携带表示跨越图像的水平条带模式的帧内编码数据的分组，以及携带表示模式的帧内编码数据的分组 横跨图像的垂直条纹。 使用第一加密方法对被标识为具有指定分组类型的分组进行加密，以产生第一加密分组。 然后，这些第一加密分组用于替换数字视频信号中的未加密分组，以产生部分加密的视频信号。 指定类型的数据包也可以在数据流中进行多重加密和替换，以产生多个加密的视频数据流。 该摘要不被认为是限制性的，因为与本发明一致的实施例可以包含比本摘要中提及的更多，更少或不同的元件。

公开(公告)号：US20110274274A1

公开(公告)日：2011-11-10

申请号：US13004892

申请日：2011-01-12

Applicant: Keng-Jui Hsu ,  Kan-Li Huang ,  Yueh-Lun Lee

Inventor： Keng-Jui Hsu ,  Kan-Li Huang ,  Yueh-Lun Lee

IPC: H04N7/167

CPC classification number: H04N9/8227 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/43856

Abstract: A method for processing an interlaced stream includes: receiving the interlaced stream and auxiliary information that are transmitted, respectively, wherein the interlaced stream has a plurality of data streams interlaced therein, and the data streams include at least one encrypted data stream; and generating reference information, utilized for distinguishing between the data streams included in the interlaced stream, by referring to the received auxiliary information.

Abstract translation: 一种用于处理隔行数据流的方法包括：分别接收隔行数据流和辅助信息，其中隔行数据流具有隔行扫描的多个数据流，数据流包括至少一个加密数据流; 以及通过参考所接收的辅助信息，生成用于区分包含在隔行数据流中的数据流的参考信息。

公开(公告)号：US07760879B2

公开(公告)日：2010-07-20

申请号：US11983296

申请日：2007-11-08

Applicant: Robert Allan Unger ,  Brant L. Candelore

Inventor： Robert Allan Unger ,  Brant L. Candelore

IPC: H04N7/167 ,  H04N7/16 ,  H04N7/173 ,  G06F12/14 ,  G06F21/00

CPC classification number: H04N7/162 ,  H04N7/167 ,  H04N7/1675 ,  H04N21/23476 ,  H04N21/235 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/23897 ,  H04N21/25875 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/42615 ,  H04N21/4344 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/435 ,  H04N21/43607 ,  H04N21/43853 ,  H04N21/43856 ,  H04N21/44055 ,  H04N21/4516 ,  H04N21/454 ,  H04N21/4623 ,  H04N21/835

Abstract: A method of encrypting a digital television signal carried out in any operative order involves duplicating packets in the digital television signal so as to create first and second duplicate packets; encrypting the first duplicate packets according to a first encryption method to create first encrypted packets; encrypting the second duplicate packets according to a second encryption method to create second encrypted packets; identifying packets in the digital television signal that are of a packet type, while other packets are not of the packet type; replacing the identified packets in the digital television signal with corresponding first and second encrypted packets to produce a multiple partially encrypted digital television signal comprising the other packets that are unencrypted and the first and second encrypted packets; and distributing the multiple partially encrypted digital television signal. This abstract is not to be considered limiting as other embodiments may include more or fewer or differing elements than appear in the abstract.

Abstract translation: 以任何操作顺序加密数字电视信号的方法涉及在数字电视信号中复制分组，以便产生第一和第二重复分组; 根据第一加密方法对所述第一重复分组进行加密以创建第一加密分组; 根据第二加密方法对所述第二重复分组进行加密以创建第二加密分组; 识别数字电视信号中具有分组类型的分组，而其他分组不是分组类型; 用相应的第一和第二加密分组替换数字电视信号中的识别的分组，以产生包括未加密的其他分组和第一和第二加密分组的多个部分加密的数字电视信号; 并分发多个部分加密的数字电视信号。 该摘要不被认为是限制性的，因为其他实施例可以包括比摘要中出现的更多或更少或不同的元件。

公开(公告)号：US07287168B2

公开(公告)日：2007-10-23

申请号：US11474625

申请日：2006-06-26

Applicant: Brant L. Candelore ,  Robert Allan Unger ,  Leo M. Pedlow, Jr.

Inventor： Brant L. Candelore ,  Robert Allan Unger ,  Leo M. Pedlow, Jr.

IPC: G06F11/34 ,  H04L9/14 ,  H04L9/12

CPC classification number: H04N7/162 ,  H04N7/167 ,  H04N7/1675 ,  H04N21/23476 ,  H04N21/235 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/23897 ,  H04N21/25875 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/42615 ,  H04N21/4344 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/435 ,  H04N21/43607 ,  H04N21/43853 ,  H04N21/43856 ,  H04N21/44055 ,  H04N21/4516 ,  H04N21/454 ,  H04N21/4623 ,  H04N21/835

Abstract: A method of encoding a packetized digital television signal consistent with certain embodiments involves encrypting a portion of the packets containing the digital television signal according to a first encryption algorithm; encrypting the portion of the packets containing the digital television signal according to a second encryption algorithm; leaving a portion of the packets containing the digital television signal unencrypted; assigning a primary packet identifier to the unencrypted packets; assigning a primary packet identifier to the packets encrypted under the first encryption algorithm; and assigning a secondary packet identifier to the packets encrypted under the second encryption algorithm. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract translation: 与某些实施例一致的编码分组数字电视信号的方法涉及根据第一加密算法加密包含数字电视信号的分组的一部分; 根据第二加密算法加密包含数字电视信号的分组的部分; 留下包含数字电视信号的分组的一部分未被加密; 将主分组标识符分配给未加密分组; 将主要分组标识符分配给在第一加密算法下加密的分组; 以及将第二分组标识符分配给在第二加密算法下加密的分组。 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。

公开(公告)号：US20070098167A1

公开(公告)日：2007-05-03

申请号：US10595960

申请日：2005-11-15

Applicant: Kenjiro Ueda ,  Katsumi Muramatsu ,  Tateo Oishi ,  Motoki Kato

Inventor： Kenjiro Ueda ,  Katsumi Muramatsu ,  Tateo Oishi ,  Motoki Kato

IPC: H04N7/167

CPC classification number: G11B20/00086 ,  G11B20/0021 ,  G11B20/00362 ,  G11B27/034 ,  G11B2220/213 ,  G11B2220/2529 ,  G11B2220/2541 ,  G11B2220/2545 ,  G11B2220/2562 ,  H04N21/23476 ,  H04N21/23897 ,  H04N21/26613 ,  H04N21/42646 ,  H04N21/43856 ,  H04N21/44055 ,  H04N21/6334 ,  H04N21/6547

Abstract: A configuration is provided which improves scrambling processing of content and eliminates unauthorized use of content. Scramble rules which differ for each content are used for content scrambling processing. For example, in the event of using shuffling processing, various shuffle states are specified as scramble rules. In the event of using Exclusive-OR processing, a value applicable to EXOR is specified as the scramble rule. Also, in the event of using rotation processing, a shift amount is specified as the scramble rule. In the event of using 32 shuffle elements in shuffling processing, 32! different shuffle states, that is to say, 32! different scramble rules can be specified. Also, the values for EXOR or the rotation shift amount can be set as various values, and many scramble rules can be set.

Abstract translation: 提供了一种配置，其改进了内容的加扰处理并消除了未经授权的内容使用。 用于每个内容的扰乱规则用于内容加扰处理。 例如，在使用混洗处理的情况下，将各种随机播放状态指定为扰频规则。 在使用异或处理的情况下，将适用于EXOR的值指定为加扰规则。 此外，在使用旋转处理的情况下，将移动量指定为加扰规则。 在混洗处理中使用32个洗牌元素的情况下，32！ 不同的shuffle状态，也就是说32！ 可以指定不同的加扰规则。 此外，EXOR或旋转偏移量的值可以被设置为各种值，并且可以设置许多加扰规则。

公开(公告)号：US07127619B2

公开(公告)日：2006-10-24

申请号：US10037498

申请日：2002-01-02

Applicant: Robert Allan Unger ,  Brant L. Candelore ,  Leo M. Pedlow, Jr.

Inventor： Robert Allan Unger ,  Brant L. Candelore ,  Leo M. Pedlow, Jr.

IPC: G06F11/34 ,  H04L9/14 ,  H04L9/12

CPC classification number: H04N7/162 ,  H04N7/167 ,  H04N7/1675 ,  H04N21/23476 ,  H04N21/235 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/23897 ,  H04N21/25875 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/42615 ,  H04N21/4344 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/435 ,  H04N21/43607 ,  H04N21/43853 ,  H04N21/43856 ,  H04N21/44055 ,  H04N21/4516 ,  H04N21/454 ,  H04N21/4623 ,  H04N21/835

Abstract: An encryption arrangement for multiple encryption of television programs. A system according to embodiments of the present invention multiple encrypts only a portion of the data required for full presentation of a television program to permit coexistence of multiple conditional access encryption systems associated with multiple manufacturer's set-top boxes within a single system. By only encrypting a portion of the program, dramatically less bandwidth is consumed than the alternative of multiple encryption of all program data, thus permitting a larger number of programs to be carried over the same bandwidth while permitting coexistence of multiple conditional access systems in a single cable television system.