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31. 发明授权

US08155314B2 Systems and methods for securing video card output 有权
标题翻译：用于保护视频卡输出的系统和方法
公开(公告)号：US08155314B2
公开(公告)日：2012-04-10
申请号：US10178804
申请日：2002-06-24
申请人： Glenn F. Evans , Paul England
发明人： Glenn F. Evans , Paul England
IPC分类号： H04L29/06
CPC分类号： G06F21/84 , G06F21/606
摘要： The various methods and systems described herein are directed to supplying a secure channel for software executing on a host computer. The methods and systems address and provide solutions for an attack model in which rogue software executing on the host computer attempts to inappropriately obtain or otherwise manipulate data. Some embodiments can provide pixel data that can be kept confidential (in that untrusted software applications cannot read the data off of the display screen). In addition, other embodiments can preserve the integrity of the pixel data by detecting whether the pixel data has been inappropriately manipulated. Various embodiments are based on a decryption engine that is located on a video card very late in the video processing chain such that programmatic access to decrypted pixel data is denied.
摘要翻译：本文描述的各种方法和系统旨在提供用于在主计算机上执行的软件的安全通道。方法和系统为攻击模型提供解决方案，其中在主计算机上执行的流氓软件尝试不适当地获取或以其他方式处理数据。一些实施例可以提供可以保密的像素数据（在该不可信软件应用程序不能从显示屏幕读取数据）。此外，其他实施例可以通过检测像素数据是否被不适当地操纵来保持像素数据的完整性。各种实施例基于位于视频处理链中非常晚的视频卡上的解密引擎，使得对解密的像素数据的编程访问被拒绝。

32. 发明授权

US07949132B2 Modular architecture to unify the playback of DVD technologies 有权
标题翻译：用于统一DVD技术播放的模块化架构
公开(公告)号：US07949132B2
公开(公告)日：2011-05-24
申请号：US11760262
申请日：2007-06-08
申请人： Glenn F. Evans , Theodore C. Tanner, Jr.
发明人： Glenn F. Evans , Theodore C. Tanner, Jr.
IPC分类号： H04L9/16
CPC分类号： H04K1/00
摘要： The present disclosure relates to parsing encrypted content and sending the encrypted content to appropriate stacks of components. Encrypted video content is sent to a video stack and encrypted audio content is sent to an audio stack. Components in either stack may or may not be able to decrypt the encrypted content. A common interface is provided to the components to pass encrypted content and encryption content with one another. Components not able to perform decryption pass on the encrypted content to succeeding components in the stack until a component capable of decrypting the encrypted content receives the encrypted content. Control from a hardware lawyer in a stack may be sent back through the stack using a secure link established by the common interfaces used by the components.
摘要翻译：本公开涉及解析加密内容并将加密的内容发送到适当的组件堆栈。加密的视频内容被发送到视频堆栈，加密的音频内容被发送到音频栈。任一堆栈中的组件可能会或可能无法解密加密的内容。向组件提供通用接口以将加密的内容和加密内容彼此传递。不能执行解密的组件将加密内容传递给堆叠中的后续组件，直到能够解密加密内容的组件接收加密内容。可以使用由组件使用的公共接口建立的安全链路，通过堆栈来从堆栈中的硬件律师进行控制。

33. 发明授权

US07936933B2 Accelerating video data decoding 失效
标题翻译：加速视频数据解码
公开(公告)号：US07936933B2
公开(公告)日：2011-05-03
申请号：US11282173
申请日：2005-11-18
申请人： Glenn F. Evans , Shyam Sadhwani
发明人： Glenn F. Evans , Shyam Sadhwani
IPC分类号： G06K9/36 , H04N11/02
CPC分类号： H04N19/127 , H04N19/136 , H04N19/179 , H04N19/423 , H04N19/44 , H04N19/61
摘要： Accelerating video data decoding is described. In one aspect, hardware accelerated video decoding operations are configured to decode source video data in a first encoded data format. During video data processing operations, the source video data is evaluated to detect any change in the encoding format. Responsive to detecting a change in the source video data encoding, wherein the changed encoding is at least partially incompatible with the first encoded data format, the hardware accelerated video decoding operations are dynamically reconfigured. The reconfigured decoding operations decode the source video data content based on the changed encoded data format.
摘要翻译：描述加速视频数据解码。在一个方面，硬件加速视频解码操作被配置为以第一编码数据格式解码源视频数据。在视频数据处理操作期间，评估源视频数据以检测编码格式的任何改变。响应于检测源视频数据编码的变化，其中改变的编码与第一编码数据格式至少部分不兼容，硬件加速视频解码操作被动态地重新配置。重新配置的解码操作基于改变的编码数据格式解码源视频数据内容。

34. 发明授权

US07774797B2 Playback control methods and arrangements for a DVD player 有权
公开(公告)号：US07774797B2
公开(公告)日：2010-08-10
申请号：US11259796
申请日：2005-10-27
申请人： Glenn F. Evans , Alok Chakrabarti
发明人： Glenn F. Evans , Alok Chakrabarti
IPC分类号： G06F3/00 , G06F9/44 , G06F13/00 , H04N5/00 , G11B21/08
CPC分类号： G06F17/30014 , G06F17/30855 , G11B27/105 , G11B27/11 , G11B27/28 , G11B2220/2562
摘要： In accordance with certain aspects of the present invention, enhancements have been developed to further extend the performance of a generic DVD navigator. The methods and arrangements herein provide a mechanism that allows a player application to precisely ‘bookmark’ locations during playback, and later resume playback at the selected bookmarked locations.

35. 发明授权

US07548245B2 Image formats for video capture, processing and display 有权
公开(公告)号：US07548245B2
公开(公告)日：2009-06-16
申请号：US11851378
申请日：2007-09-06
申请人： Glenn F. Evans , Stephen J. Estrop
发明人： Glenn F. Evans , Stephen J. Estrop
IPC分类号： G09G5/02
CPC分类号： H04N19/423 , H04N19/186 , H04N19/61
摘要： Techniques and tools for representing pixel data in a video processing or capture system are described. Described techniques and tools provide efficient color representation for video processing and capture, and provide flexibility for representing colors using different bit precisions and memory layouts. Described techniques and tools include video formats that can be used, for example, in hardware or software for capture, processing, and display purposes. In one aspect, chroma and luma information for a pixel in a video image is represented in a 16-bit fixed-point block of data having an integer and fractional components. Data can be easily converted from one representation to another (e.g., between 16-bit and 10-bit representations). In other aspects, formats for representing 8-, 10- and 16-bit video image data (e.g., packed and hybrid planar formats), and codes for indicating the formats, are described.

36. 发明授权

US07451453B1 DVD navigator and application programming interfaces (APIs) 有权
标题翻译： DVD导航仪和应用程序编程接口（API）
公开(公告)号：US07451453B1
公开(公告)日：2008-11-11
申请号：US09721402
申请日：2000-11-22
申请人： Glenn F. Evans , Alok Chakrabarti
发明人： Glenn F. Evans , Alok Chakrabarti
IPC分类号： H04N5/91 , G06F9/46
CPC分类号： G06F9/542 , G11B19/02 , G11B27/105 , G11B2220/2562 , H04N5/85
摘要： In accordance with certain aspects of the present invention, enhancements have been developed to further extend the performance of a generic DVD navigator component. Here, the DVD navigator program has been enhanced to better synchronize with DVD player applications. As such, better control mechanisms for the player application are provided. For example, improved enforcement of restricted/parental controlled content viewing, generation and assignment of unique identifiers to the content source, and an improved user and player application environment for starting and stopping playback are provided.
摘要翻译：根据本发明的某些方面，已经开发了进一步扩展通用DVD导航器组件的性能的增强。在这里，DVD导航程序已被增强，以更好地与DVD播放器应用程序同步。因此，提供了用于玩家应用的更好的控制机制。例如，提供了限制/家长受控内容对内容源的唯一标识符的查看，生成和分配的改进的实施以及用于启动和停止重放的改进的用户和播放器应用环境。

37. 发明授权

US07337329B2 Secure video card methods and systems 有权
标题翻译：安全的视频卡方法和系统
公开(公告)号：US07337329B2
公开(公告)日：2008-02-26
申请号：US11044483
申请日：2005-01-27
申请人： Glenn F. Evans
发明人： Glenn F. Evans
IPC分类号： G06F11/30 , G06F12/14 , H04L9/32
CPC分类号： G06F21/84
摘要： Methods and systems for protecting data that is intended for use and processed on video or graphics cards are described. In one embodiment, a system comprises a graphics processor unit (GPU) for processing data that is to be rendered on a monitor. Memory is operably associated with the graphics processor unit for holding data that is to be or has been processed by the GPU. A display converter converts digital data to signals for use in rendering the data on the monitor, and a memory controller is configured to receive encrypted data and decrypt the encrypted data into protected regions of the memory.
摘要翻译：描述用于保护旨在在视频或图形卡上使用和处理的数据的方法和系统。在一个实施例中，系统包括用于处理要在监视器上呈现的数据的图形处理器单元（GPU）。存储器可操作地与图形处理器单元相关联，用于保存要由GPU处理或已由GPU处理的数据。显示转换器将数字数据转换成用于呈现监视器上的数据的信号，并且存储器控制器被配置为接收加密的数据并将加密的数据解密为存储器的保护区域。

38. 发明授权

US07284135B2 Methods and systems for maintaining an encrypted video memory subsystem 有权
公开(公告)号：US07284135B2
公开(公告)日：2007-10-16
申请号：US10631023
申请日：2003-07-30
申请人： Glenn F. Evans , Paul England , Nicholas P. Wilt
发明人： Glenn F. Evans , Paul England , Nicholas P. Wilt
IPC分类号： G06F11/30 , G06F12/14 , H04L9/32
CPC分类号： H04N21/42692 , G11B20/00086 , G11B20/0021 , G11B20/00478 , H04N5/765 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/907 , H04N5/913 , H04N21/4143 , H04N21/4405 , H04N21/4408 , H04N2005/91364
摘要： Methods and systems protect digital content such as premium content like movies, programs, and other types of digital audio/visual content. In some embodiments, an architecture and related methods protect content by maintaining the content in encrypted form, whether the content resides in video card memory (referred to herein as “VRAM”), or some other local or remote memory subsystem. The methods and systems enable video card co-processors, such as the graphics processing unit (GPU) to manipulate the encrypted content or data. In various embodiments, the content is maintained in an encrypted format and is unencrypted only when the GPU operates upon the data. After the GPU operates upon the data, the resultant data is re-encrypted and written to memory.

39. 发明授权

US06930620B2 Methods and systems for synchronizing data streams 失效
公开(公告)号：US06930620B2
公开(公告)日：2005-08-16
申请号：US10047862
申请日：2002-01-15
申请人： Glenn F. Evans
发明人： Glenn F. Evans
IPC分类号： G06F15/16 , G09G5/00 , H03M7/00 , H04N21/2368 , H04N21/4143 , H04N21/43 , H04N21/434
CPC分类号： H04N21/4143 , H04N21/2368 , H04N21/4305 , H04N21/4307 , H04N21/4341 , H04N21/4344
摘要： Methods and systems are provided for synchronizing various time-stamped data streams. The data streams can be synchronized to another data stream or to a point of reference such as a reference clock. In one embodiment, synchronization processing takes place in association with a filter graph comprising multiple filters. The filter graph is configured to process multiple timestamped data streams for rendering the data streams in accordance with data stream timestamps. A synchronization module is provided and is associated with the filter graph queries individual filters of the filter graph to ascertain input timestamp-to-output timestamp mappings. The module computes adjustments that are to be made to output timestamps in order to synchronize the data streams, and then instructs queried filters to adjust their output timestamps in accordance with its adjustment computations.

40. 发明授权

US08428346B2 Strategies for processing image information using a color information data structure 有权
标题翻译：使用颜色信息数据结构处理图像信息的策略
公开(公告)号：US08428346B2
公开(公告)日：2013-04-23
申请号：US13070371
申请日：2011-03-23
申请人： Glenn F. Evans , Stephen J. Estrop
发明人： Glenn F. Evans , Stephen J. Estrop
IPC分类号： G06K9/00
CPC分类号： G09G5/363 , G06F3/14 , G09G2310/0229 , G09G2340/0435 , G09G2360/125 , H04N7/012 , H04N7/0122 , H04N9/642 , H04N9/67 , H04N9/69
摘要： Strategies are described for processing image information using a data structure which conveys color information. The color information describes color-related formatting applied to the image information. The data structure can be passed down a video processing pipeline, which includes a video mixing renderer module, a device driver, and a graphics module. Each functional component in the pipeline can draw color information from the data structure to improve the accuracy of its processing.
摘要翻译：描述了使用传达颜色信息的数据结构处理图像信息的策略。颜色信息描述应用于图像信息的颜色相关格式。数据结构可以传送到视频处理流水线，视频处理流水线包括视频混合渲染器模块，设备驱动器和图形模块。管道中的每个功能组件可以从数据结构中绘制颜色信息，以提高其处理的准确性。

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