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1. 发明授权

US07206940B2 Methods and systems providing per pixel security and functionality 失效
标题翻译：提供每像素安全性和功能的方法和系统
公开(公告)号：US07206940B2
公开(公告)日：2007-04-17
申请号：US10178822
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： G06F11/30 , G06F12/14 , G06F7/04 , G06F17/30 , H04L9/32 , H04L9/00 , G06K9/00
CPC分类号： H04N7/1675 , G06F21/84 , H04N21/4143 , H04N21/4367
摘要： Various described embodiments provide for per-pixel functionality in connection with pixel data that is processed by a video card for rendering on a display monitor. That is, pixel data that is associated with individual pixels that are to be rendered on a display monitor are imparted with a characteristic that enables various functionalities to be implemented at the pixel level. In one embodiment, per-pixel functionality is provided by including, in the pixel data itself, a specification of an auxiliary function that is to be performed on the pixel data associated with the individual pixels. For example, the security of the pixel data associated with each pixel can be enhanced by providing the ability to encrypt and decrypt the pixel data for individual pixels. A specification of a key that can be used for decrypting the pixel data can then be included in the pixel data itself such that when the pixel data is processed for rendering, a suitably configured decryptor can access the key specification and decrypt the pixel data.
摘要翻译：各种所描述的实施例提供了与由视频卡处理以在显示监视器上呈现的像素数据相关联的每像素功能。也就是说，与在显示监视器上呈现的各个像素相关联的像素数据被赋予能够在像素级实现各种功能的特性。在一个实施例中，通过在像素数据本身中包括要对与各个像素相关联的像素数据执行的辅助功能的规范来提供每像素功能。例如，通过提供对各个像素的像素数据进行加密和解密的能力，可以增强与每个像素相关联的像素数据的安全性。可以将可用于解密像素数据的密钥的规范包括在像素数据本身中，使得当像素数据被处理用于呈现时，适当配置的解密器可以访问密钥规范并解密像素数据。

2. 发明授权

US07293178B2 Methods and systems for maintaining an encrypted video memory subsystem 有权
标题翻译：用于维护加密视频存储器子系统的方法和系统
公开(公告)号：US07293178B2
公开(公告)日：2007-11-06
申请号：US10314896
申请日：2002-12-09
申请人： Glenn F. Evans , Paul England
发明人： Glenn F. Evans , Paul England
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.
摘要翻译：方法和系统保护诸如电影，节目和其他类型的数字音频/视频内容之类的优质内容的数字内容。在一些实施例中，架构和相关方法通过以加密形式维护内容来保护内容，无论内容是驻留在视频卡存储器（本文称为“VRAM”）中，还是某些其他本地或远程存储器子系统。所述方法和系统使视频卡协处理器（诸如图形处理单元（GPU））能够操纵加密的内容或数据。在各种实施例中，内容被保持为加密格式，并且仅当GPU对数据进行操作时才被解密。在GPU对数据进行操作之后，将所得数据重新加密并写入存储器。

3. 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。

4. 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.

5. 发明授权

US08738929B2 Auxiliary functionality for pixel data 有权
标题翻译：像素数据辅助功能
公开(公告)号：US08738929B2
公开(公告)日：2014-05-27
申请号：US13411272
申请日：2012-03-02
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。

6. 发明申请

US20120166816A1 Auxiliary Functionality for Pixel Data 有权
标题翻译：像素数据辅助功能
公开(公告)号：US20120166816A1
公开(公告)日：2012-06-28
申请号：US13411272
申请日：2012-03-02
申请人： Glenn F. Evans , Paul England
发明人： Glenn F. Evans , Paul England
IPC分类号： G09G5/00 , G06F21/24
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。

7. 发明授权

US08654842B2 Accelerated video encoding 有权
标题翻译：加速视频编码
公开(公告)号：US08654842B2
公开(公告)日：2014-02-18
申请号：US11673423
申请日：2007-02-09
申请人： Anand Ganesh , Donald J. Munsil , Gary J. Sullivan , Glenn F. Evans , Shyam Sadhwani , Stephen J. Estrop
发明人： Anand Ganesh , Donald J. Munsil , Gary J. Sullivan , Glenn F. Evans , Shyam Sadhwani , Stephen J. Estrop
IPC分类号： H04N7/12
CPC分类号： G06F9/5044 , H04N19/12 , H04N19/124 , H04N19/127 , H04N19/154 , H04N19/156 , H04N19/42 , H04N19/61 , H04N21/242 , H04N21/4302 , H04N21/64784
摘要： A video encoding acceleration service to increase one or more of the speed and quality of video encoding is described. The service acts as an intermediary between an arbitrary video encoder computer program application and arbitrary video acceleration hardware. The service receives one or more queries from the video encoder to identify implementation specifics of the video acceleration hardware. The service interfaces with the video acceleration hardware to obtain the implementation specifics. The service communicates the implementation specifics to the video encoder. The implementation specifics enable the video encoder to: (a) determine whether one or more of speed and quality of software encoding operations associated with the video encoder can be increased with implementation of a pipeline of one or more supported encoding pipeline configurations and capabilities, and (b) implement the pipeline by interfacing with the service.
摘要翻译：描述了增加视频编码的速度和质量中的一个或多个的视频编码加速服务。该服务充当任意视频编码器计算机程序应用程序和任意视频加速硬件之间的中介。该服务从视频编码器接收一个或多个查询以识别视频加速硬件的实现细节。该服务与视频加速硬件接口获取实现细节。该服务将实现细节传达给视频编码器。实施细节使得视频编码器能够：（a）确定是否可以通过实现一个或多个支持的编码流水线配置和能力的流水线来增加与视频编码器相关联的软件编码操作的速度和质量的一个或多个，以及（b）通过与服务接口实施管道。

8. 发明授权

US08169345B2 Methods and systems for processing digital data rate and directional playback changes 有权
标题翻译：用于处理数字数据速率和定向播放变化的方法和系统
公开(公告)号：US08169345B2
公开(公告)日：2012-05-01
申请号：US10419622
申请日：2003-04-21
申请人： Glenn F. Evans , Alok Chakrabarti , Matthijs A. Gates
发明人： Glenn F. Evans , Alok Chakrabarti , Matthijs A. Gates
IPC分类号： H03M7/00
CPC分类号： G11B27/034 , G11B20/10527 , G11B27/005 , G11B2020/10537 , G11B2020/10694 , H04N5/765 , H04N5/775 , H04N5/783 , H04N5/85 , H04N9/8042 , H04N9/8063 , H04N9/8227
摘要： Various methods and systems permit digital data, such as video data, audio/video data, audio/video/subpicture data and the like, to be processed in a manner that permits playback at different speeds in both forward and reverse directions. Various embodiments are also directed to handling playback rate changes in a manner that can enhance the user's experience.
摘要翻译：各种方法和系统允许数字数据，例如视频数据，音频/视频数据，音频/视频/子图像数据等以允许在正向和反向两个方向上以不同速度回放的方式进行处理。各种实施例还涉及以能够增强用户体验的方式来处理播放速率变化。

9. 发明授权

US07752674B2 Secure media path methods, systems, and architectures 有权
标题翻译：安全的媒体路径方法，系统和架构
公开(公告)号：US07752674B2
公开(公告)日：2010-07-06
申请号：US11275993
申请日：2006-02-08
申请人： Glenn F. Evans , John Bradstreet
发明人： Glenn F. Evans , John Bradstreet
IPC分类号： G06F7/04
CPC分类号： H04L63/0457 , G06F21/10 , G06F2221/0728 , G06F2221/2105 , H04L63/126 , H04L2463/101 , H04N21/4353 , H04N21/4405 , H04N21/4408 , H04N21/443 , H04N21/835
摘要： Methods, systems and architectures for processing renderable digital content are described. The various embodiments can protect against unauthorized access or duplication of unprotected content (i.e. decrypted content) once the content has reached a rendering device such as a user's computer. A flexible framework includes an architecture that allows for general media sources to provide virtually any type of multimedia content to any suitably configured rendering device. Content can be protected and rendered locally and/or across networks such as the Internet. The various embodiments can provide a standard platform that can that can be leveraged to protect content across a wide variety of rendering environments, content types, and DRM techniques.
摘要翻译：描述了用于处理可渲染数字内容的方法，系统和架构。一旦内容已经到达诸如用户的计算机的呈现设备，各种实施例可以防止未经授权的访问或复制未受保护的内容（即解密的内容）。灵活的框架包括允许一般媒体源向任何适当配置的渲染设备提供几乎任何类型的多媒体内容的架构。内容可以在本地和/或跨网络（如Internet）进行保护和呈现。各种实施例可以提供可以被利用以跨越各种呈现环境，内容类型和DRM技术来保护内容的标准平台。

10. 发明授权

US07649539B2 Image formats for video capture, processing and display 有权
标题翻译：用于视频捕获，处理和显示的图像格式
公开(公告)号：US07649539B2
公开(公告)日：2010-01-19
申请号：US10798874
申请日：2004-03-10
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.
摘要翻译：描述了用于在视频处理或捕获系统中表示像素数据的技术和工具。描述的技术和工具为视频处理和捕获提供了有效的颜色表示，并提供了使用不同位精度和存储器布局表示颜色的灵活性。所描述的技术和工具包括可用于例如用于捕获，处理和显示目的的硬件或软件中的视频格式。在一个方面，视频图像中的像素的色度和亮度信息在具有整数和分数分量的16位定点数据块中表示。数据可以容易地从一个表示转换到另一个表示（例如，在16位和10位表示之间）。在其他方面，描述用于表示8,10和16位视频图像数据（例如打包和混合平面格式）的格式以及用于指示格式的代码。

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