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11. 发明申请

US20090172331A1 Securing content for playback 审中-公开
标题翻译：保护播放内容
公开(公告)号：US20090172331A1
公开(公告)日：2009-07-02
申请号：US12006282
申请日：2007-12-31
申请人： Balaji Vembu , Aditya Sreenivas , Wishwesh Gandhi , Sathyamurthi Sadhasivan , Gary Graunke , Scott Janus , Murali Ramadoss
发明人： Balaji Vembu , Aditya Sreenivas , Wishwesh Gandhi , Sathyamurthi Sadhasivan , Gary Graunke , Scott Janus , Murali Ramadoss
IPC分类号： G06F21/00
CPC分类号： G06F21/84 , G06F21/10 , G06F21/74
摘要： A graphics engine may include a decryption device, a renderer, and a sprite or overlay engine, all connected to a display. A memory may have a protected and non-protected portions in one embodiment. An application may store encrypted content on the non-protected portion of said memory. The decryption device may access the encrypted material, decrypt the material, and provide it to the renderer engine of a graphics engine. The graphics engine may then process the decrypted material using the protected portion of the memory. Only graphics devices can access the protected portion of the memory in at least one mode, preventing access by outside sources. In addition, the protected memory may be stolen memory that is not identified to the operating system, making that stolen memory inaccessible to applications running on the operating system.
摘要翻译：图形引擎可以包括全部连接到显示器的解密设备，渲染器和子画面或覆盖引擎。在一个实施例中，存储器可以具有受保护和非保护部分。应用可以将加密的内容存储在所述存储器的非保护部分上。解密设备可以访问加密的材料，解密材料，并将其提供给图形引擎的渲染器引擎。然后，图形引擎可以使用存储器的受保护部分来处理解密的材料。只有图形设备才能以至少一种模式访问存储器的受保护部分，从而防止外部源的访问。此外，受保护的存储器可能是未被识别到操作系统的被盗存储器，使得被盗的存储器不能在操作系统上运行的应用程序访问。

12. 发明申请

US20140185802A1 REAL TIME COMPOSITION OF A COMPOSITE WINDOW FROM CONTENT MAINTAINING UNIQUE SECURITY DOMAINS 有权
标题翻译：来自维护独特安全域的内容的复合窗口的实时组合
公开(公告)号：US20140185802A1
公开(公告)日：2014-07-03
申请号：US13729652
申请日：2012-12-28
申请人： SCOTT JANUS , DAVID R. SOKOLOWSKI
发明人： SCOTT JANUS , DAVID R. SOKOLOWSKI
IPC分类号： H04L9/28
CPC分类号： H04L9/12 , H04L9/14 , H04L2209/30 , H04L2209/60 , H04N7/167 , H04N21/4126 , H04N21/41407 , H04N21/42623 , H04N21/42653 , H04N21/44004 , H04N21/44012 , H04N21/4408
摘要： In general, in one aspect, a multi-content composition pipeline encrypts protected video streams that may be utilized as part of a composite window using different encryption keys so that each encrypted video stream has a unique security domain. The protected video streams may be received as encrypted and compressed video streams that are decrypted and decoded (decompressed) and then the decompressed video streams may be encrypted. The encryption keys used to encrypt the decompressed video stream may be related to the encryption keys used to decrypt the corresponding encrypted compressed video stream. The encrypted decompressed video streams are stored in memory until they are needed for generating the composite window at which point they are read from memory and decrypted. The composite window is generated from the decrypted uncompressed video streams and possibly other content in real time and thus is not stored in memory prior to transmission to a display.
摘要翻译：通常，在一个方面，多内容组合流水线加密受保护的视频流，其可以使用不同的加密密钥来使用作为组合窗口的一部分，使得每个加密的视频流具有唯一的安全域。受保护的视频流可以作为经解密和解码（解压缩）的经加密和压缩的视频流来接收，然后解压缩的视频流可被加密。用于加密解压缩视频流的加密密钥可以与用于解密对应的加密压缩视频流的加密密钥有关。加密的解压缩视频流被存储在存储器中，直到它们被需要用于生成复合窗口，此时它们从存储器读取并被解密。复合窗口从解密的未压缩视频流和可能的其他内容实时生成，因此在传输到显示器之前不存储在存储器中。

13. 发明申请

US20140146896A1 VIDEO PIPELINE WITH DIRECT LINKAGE BETWEEN DECODING AND POST PROCESSING 有权
标题翻译：在解码和后处理之间具有直接链接的视频管道
公开(公告)号：US20140146896A1
公开(公告)日：2014-05-29
申请号：US13687093
申请日：2012-11-28
申请人： AKSHAT NANDA , SCOTT JANUS , SCOTT W. CHENG
发明人： AKSHAT NANDA , SCOTT JANUS , SCOTT W. CHENG
IPC分类号： H04N7/26
CPC分类号： H04N19/44 , H04N19/42 , H04N19/85
摘要： In general, in one aspect, a decode order for a group of picture (GOP) frame structure for a video stream is modified to include regenerated P frames. The modified decode order includes a regenerated P frame of a P frame decoded prior to a sequence of B frames after last B frame in the sequence of B frames and before next I or P frame. The frames are decoded in modified decode order by a decode engine. The decoded frames are post processed in a display order (only includes regenerated P frames and does not include initial P frames defined in the decode order) by a post processing engine. The post processing engine may ignore the initial P frames or the decode engine may not forward the initial P frames to the post processing engine. The post processed frames may be prepared for presentation by a display engine.
摘要翻译：通常，在一个方面，用于视频流的一组图像（GOP）帧结构的解码顺序被修改为包括再生的P帧。经修改的解码顺序包括在B帧序列中的B帧之后和在下一个I帧或P帧之前的B帧之后的序列之前解码的P帧的再生P帧。帧由解码引擎以修改的解码顺序解码。解码帧以后处理引擎以显示顺序（仅包括再生的P帧，并且不包括以解码顺序定义的初始P帧）进行后处理。后处理引擎可以忽略初始P帧，或者解码引擎可能不将初始P帧转发到后处理引擎。后处理帧可以准备用于由显示引擎呈现。

14. 发明申请

US20050172274A1 Codec control 有权
标题翻译：编解码器控制
公开(公告)号：US20050172274A1
公开(公告)日：2005-08-04
申请号：US10772041
申请日：2004-02-03
申请人： Mike Choi , Robert Fosha , Scott Janus , Aaron Leatherman , Scott Rowe , Wade Thompson
发明人： Mike Choi , Robert Fosha , Scott Janus , Aaron Leatherman , Scott Rowe , Wade Thompson
IPC分类号： G06F3/14 , G09G5/36 , G06F9/45
CPC分类号： G06F3/1431 , G06F3/14 , G06T1/00 , G06T1/20 , G09G5/363
摘要： A method and system for a software driver of a graphics controller to work with a display codec. The software driver may be configured to work with different display codecs at different periods of time while using a default configuration. Other embodiments are also described.
摘要翻译：一种图形控制器的软件驱动程序与显示编解码器一起使用的方法和系统。软件驱动程序可以配置为在使用默认配置时在不同时间段处理不同的显示编解码器。还描述了其它实施例。

15. 发明申请

US20150312524A1 Encrypted Screencasting 有权
标题翻译：加密屏幕录像
公开(公告)号：US20150312524A1
公开(公告)日：2015-10-29
申请号：US14494707
申请日：2014-09-24
申请人： Balaji Vembu , Scott Janus , Changliang Wang
发明人： Balaji Vembu , Scott Janus , Changliang Wang
IPC分类号： H04N7/167
CPC分类号： H04N21/2347 , H04N21/4181 , H04N21/4405
摘要： Encryption and encoding of video and/or audio may be implemented on an integrated circuit before being transmitted wirelessly to a remote adapter for display.
摘要翻译：视频和/或音频的加密和编码可以在被无线地传输到远程适配器进行显示之前在集成电路上实现。

16. 发明申请

US20150086012A1 SECURE VIDEO OUPUT PATH 有权
标题翻译：安全视频OUPUT路径
公开(公告)号：US20150086012A1
公开(公告)日：2015-03-26
申请号：US14036263
申请日：2013-09-25
申请人： Siddhartha Chhabra , Uday R. Savagaonkar , Prashant Dewan , David M. Durham , Balaji Vembu , Xiaozhu Kang , Scott Janus , Jason Martin , Vincent R. Scarlata
发明人： Siddhartha Chhabra , Uday R. Savagaonkar , Prashant Dewan , David M. Durham , Balaji Vembu , Xiaozhu Kang , Scott Janus , Jason Martin , Vincent R. Scarlata
IPC分类号： H04N7/167
CPC分类号： G06F21/82 , G06F21/84 , G06F21/85 , H04N21/4122 , H04N21/4143 , H04N21/4367
摘要： Systems and methods for secure delivery of output surface bitmaps to a display engine. An example processing system comprises: an architecturally protected memory; and a processing core communicatively coupled to the architecturally protected memory, the processing core comprising a processing logic configured to implement an architecturally-protected execution environment by performing at least one of: executing instructions residing in the architecturally protected memory and preventing an unauthorized access to the architecturally protected memory; wherein the processing logic is further configured to provide a secure video output path by generating an output surface bitmap encrypted with a first encryption key and storing an encrypted first encryption key in an external memory, wherein the encrypted first encryption key is produced by encrypting the first encryption key with a second encryption key.
摘要翻译：用于将输出表面位图安全传递到显示引擎的系统和方法。一个示例处理系统包括：架构受保护的存储器; 以及处理核心，其通信地耦合到所述体系结构保护的存储器，所述处理核心包括处理逻辑，所述处理逻辑被配置为通过执行以下中的至少一个来实现架构保护的执行环境：执行驻留在架构保护的存储器中的指令，建筑保护记忆; 其中所述处理逻辑还被配置为通过生成用第一加密密钥加密并将加密的第一加密密钥存储在外部存储器中的输出表面位图来提供安全视频输出路径，其中所述加密的第一加密密钥是通过加密所述第一加密密钥具有第二加密密钥的加密密钥。

17. 发明申请

US20140270280A1 AUDIO LOCALIZATION TECHNIQUES FOR VISUAL EFFECTS 有权
标题翻译：用于视觉效果的音频本地化技术
公开(公告)号：US20140270280A1
公开(公告)日：2014-09-18
申请号：US13830481
申请日：2013-03-14
申请人： Scott Janus
发明人： Scott Janus
IPC分类号： H04S7/00
CPC分类号： G06F3/167 , G06F3/1446 , G09G3/003 , H04R1/00 , H04S7/302 , H04S2400/11
摘要： Techniques for improved audio localization for visual effects are described. In one embodiment, for example, an apparatus may comprise a processor circuit and an audio management module, and the audio management module may be operable by the processor circuit to determine a position of a user interface element in a presentation area, determine an audio effect corresponding to the user interface element, determine audio location information for the audio effect based on the position of the user interface element, the audio location information defining an apparent position for the audio effect, and generate audio playback information for the audio effect based on the audio location information. Other embodiments are described and claimed.
摘要翻译：描述了用于改善视觉效果的音频定位的技术。在一个实施例中，例如，设备可以包括处理器电路和音频管理模块，并且音频管理模块可以由处理器电路操作以确定用户界面元素在呈现区域中的位置，确定音频效果对应于用户界面元素，基于用户界面元素的位置确定音频效果的音频位置信息，音频位置信息定义音频效果的明显位置，并且基于音频效果生成用于音频效果的音频回放信息音频位置信息。描述和要求保护其他实施例。

18. 发明申请

US20140205085A1 PREVENTING PATTERN RECOGNITION IN ELECTRONIC CODE BOOK ENCRYPTION 有权
标题翻译：防止电子代码加密中的图案识别
公开(公告)号：US20140205085A1
公开(公告)日：2014-07-24
申请号：US13996890
申请日：2011-12-30
申请人： Scott Janus , Jason Martin , UDAY Savagaonkar
发明人： Scott Janus , Jason Martin , UDAY Savagaonkar
IPC分类号： H04N1/44
CPC分类号： H04L9/0637 , G06F21/6209 , G06T1/20 , H04L2209/08 , H04N1/4486
摘要： In general, in one aspect, noise is injected into a bitmap associated with content to be presented on a display to create a noisy bitmap. The noisy bitmap is encrypted using electronic code book (ECB) encryption. The resulting ciphertext does not include recognizable patterns from the content as is typical with ECB encryption. The injection of noise may include modifying pixel values for at least a subset of pixels in the bitmap. The pixel values may be modified by using a counter, a known modification pattern, or a random number generator. The bitmap may be analyzed to determine how the bitmap can be modified to maximize the randomness of the bitmap while ensuring that the noisy bitmap is visually perceptually similar when presented. The noise may be injected into a block of pixels prior to the block being encrypted.
摘要翻译：通常，在一个方面，将噪声注入到与将要呈现在显示器上的内容相关联的位图中以产生噪声位图。噪声位图使用电子代码簿（ECB）加密进行加密。所得到的密文不包括来自内容的可识别模式，如ECB加密典型。噪声的注入可以包括修改位图中的至少像素子集的像素值。可以通过使用计数器，已知修改模式或随机数生成器来修改像素值。可以分析位图以确定位图如何被修改以使位图的随机性最大化，同时确保在呈现时视觉上感觉上类似的噪声位图。在块被加密之前，可以将噪声注入到像素块中。

19. 发明申请

US20140157410A1 Secure Environment for Graphics Processing Units 有权
标题翻译：图形处理单元的安全环境
公开(公告)号：US20140157410A1
公开(公告)日：2014-06-05
申请号：US13690401
申请日：2012-11-30
申请人： Prashant Dewan , Uday R. Savagaonkar , David M. Durham , Paul S. Schmitz , Jason Martin , Michael Goldsmith , Ravi L. Sahita , Frank X McKeen , Carlos Rozas , Vembu Balaji , Scott Janus , Geoffrey S. Strongin , Xiaozhu Kang , Karanvir S. Grewal , Siddhartha Chhabra , Alpha T. Narendra Trivedi
发明人： Prashant Dewan , Uday R. Savagaonkar , David M. Durham , Paul S. Schmitz , Jason Martin , Michael Goldsmith , Ravi L. Sahita , Frank X McKeen , Carlos Rozas , Vembu Balaji , Scott Janus , Geoffrey S. Strongin , Xiaozhu Kang , Karanvir S. Grewal , Siddhartha Chhabra , Alpha T. Narendra Trivedi
IPC分类号： G06F21/64
CPC分类号： G06F21/64 , G06F21/53 , G06F21/56
摘要： In accordance with some embodiments, a protected execution environment may be defined for a graphics processing unit. This framework not only protects the workloads from malware running on the graphics processing unit but also protects those workloads from malware running on the central processing unit. In addition, the trust framework may facilitate proof of secure execution by measuring the code and data structures used to execute the workload. If a part of the trusted computing base of this framework or protected execution environment is compromised, that part can be patched remotely and the patching can be proven remotely throughout attestation in some embodiments.
摘要翻译：根据一些实施例，可以为图形处理单元定义受保护的执行环境。该框架不仅保护了图形处理单元上运行的恶意软件的工作负载，还保护了这些工作负载免受中央处理单元上运行的恶意软件。此外，信任框架可以通过测量用于执行工作负载的代码和数据结构来促进安全执行的证明。如果该框架或受保护的执行环境的可信计算基础的一部分受到损害，那么该部分可以被远程修补，并且在一些实施例中可以通过验证远程验证修补。

20. 发明授权

US07647557B2 Techniques for shuffling video information 有权
标题翻译：混合视频信息的技术
公开(公告)号：US07647557B2
公开(公告)日：2010-01-12
申请号：US11171975
申请日：2005-06-29
申请人： Scott Janus
发明人： Scott Janus
IPC分类号： G06F3/00 , H04N7/16 , H04N7/167 , G06F1/24
CPC分类号： H04N5/913 , G11B27/34 , H04N5/85 , H04N7/17336 , H04N21/4325 , H04N21/458 , H04N2005/91378
摘要： An apparatus, system, method, and article for shuffling video information are described. The apparatus may include a media processing node to receive video information. The media processing node may include a shuffling module to shuffle the video information according to a shuffle order and a trusted entity programmed based on the shuffle order to provide access to the video information. The video information may be provided in an unshuffled manner when accessed through the trusted entity. Other embodiments are described and claimed.
摘要翻译：描述了用于混洗视频信息的装置，系统，方法和文章。该装置可以包括用于接收视频信息的媒体处理节点。媒体处理节点可以包括混洗模块，用于根据洗牌顺序洗牌视频信息和基于洗牌顺序编程的可信实体以提供对视频信息的访问。当通过可信实体访问时，视频信息可以以未混洗的方式提供。描述和要求保护其他实施例。

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