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1. 发明授权

US5621660A Software-based encoder for a software-implemented end-to-end scalable video delivery system 失效
标题翻译：用于软件实现的端到端可扩展视频传输系统的基于软件的编码器
公开(公告)号：US5621660A
公开(公告)日：1997-04-15
申请号：US423812
申请日：1995-04-18
申请人： Navin Chaddha , J. Duane Northcutt , Gerard A. Wall , James G. Hanko
发明人： Navin Chaddha , J. Duane Northcutt , Gerard A. Wall , James G. Hanko
IPC分类号： G06F13/00 , G06T9/00 , H04N5/93 , H04N7/173 , H04N7/24 , H04N7/26 , H04N7/28 , H04N21/2343 , H04N21/24 , H04N21/258 , H04N21/2662 , H04N21/4402 , H04N21/462 , H04N21/63 , H04N21/6405 , H04N21/647 , H04N9/79
CPC分类号： H04N21/2662 , H04N19/156 , H04N19/186 , H04N19/63 , H04N19/94 , H04N21/234327 , H04N21/2402 , H04N21/25808 , H04N21/440227 , H04N21/4621 , H04N21/631 , H04N21/6405 , H04N21/64792 , H04N7/17336 , H04N7/24 , H04N19/39
摘要： A software-based encoder is provided for an end-to-end scalable video delivery system that operates over heterogeneous networks. The encoder utilizes a scalable video compression algorithm based on a Laplacian pyramid decomposition to generate an embedded information stream. The decoder decimates a highest resolution original image, e.g., 640.times.480 pixels, to produce an intermediate 320.times.240 pixel image that is decimated to produce an intermediate 160.times.120 pixel image that is compressed to form an encodable base layer 160.times.120 pixel image. A decompressed base layer image is also up-sampled at step to produce an up-sampled 640.times.480 pixel image that is subtracted from the original 640.times.480 pixel image 200 to yield an error image. At the receiving end, the decoder extracts from the embedded stream different streams at different spatial and temporal resolutions. Because decoding requires only additions and look-ups from a small stored table, decoding occurs in real-time.
摘要翻译：提供了一种基于软件的编码器，用于在异构网络上运行的端到端可伸缩视频传送系统。编码器利用基于拉普拉斯金字塔分解的可扩展视频压缩算法来生成嵌入信息流。解码器对最高分辨率的原始图像（例如，640×480像素）进行抽取，以产生被抽取的中间的320×240像素图像，以产生被压缩形成可编码的基本层160×120像素图像的中间160×120像素图像。解压缩的基层图像也在步骤中进行上采样，以产生从原始640×480像素图像200中减去的上采样的640×480像素图像，以产生误差图像。在接收端，解码器以不同的空间和时间分辨率从嵌入的流中提取不同的流。因为解码只需要从小的存储表中增加和查找，所以解码发生在实时中。

2. 发明授权

US5768535A Software-based encoder for a software-implemented end-to-end scalable video delivery system 失效
标题翻译：用于软件实现的端到端可扩展视频传输系统的基于软件的编码器
公开(公告)号：US5768535A
公开(公告)日：1998-06-16
申请号：US835855
申请日：1997-04-08
申请人： Navin Chaddha , J. Duane Northcutt , Gerard A. Wall , James G. Hanko
发明人： Navin Chaddha , J. Duane Northcutt , Gerard A. Wall , James G. Hanko
IPC分类号： G06F13/00 , G06T9/00 , H04N5/93 , H04N7/173 , H04N7/24 , H04N7/26 , H04N7/28 , H04N21/2343 , H04N21/24 , H04N21/258 , H04N21/2662 , H04N21/4402 , H04N21/462 , H04N21/63 , H04N21/6405 , H04N21/647 , H04N1/413
CPC分类号： H04N21/2662 , H04N19/156 , H04N19/186 , H04N19/63 , H04N19/94 , H04N21/234327 , H04N21/2402 , H04N21/25808 , H04N21/440227 , H04N21/4621 , H04N21/631 , H04N21/6405 , H04N21/64792 , H04N7/17336 , H04N7/24 , H04N19/39
摘要： A software-based encoder is provided for an end-to-end scalable video delivery system that operates over heterogeneous networks. The encoder utilizes a scalable video compression algorithm based on a Laplacian pyramid decomposition to generate an embedded information stream. The decoder decimates a highest resolution original image, e.g., 640.times.480 pixels, to produce an intermediate 320.times.240 pixel image that is decimated to produce an intermediate 160.times.120 pixel image that is compressed to form an encodable base layer 160.times.120 pixel image. This base layer image is decompressed to form an image that is up-sampled by interpolation to produce an up-sampled 320.times.240 pixel image. This up-sampled image is subtracted from the intermediate 320.times.240 pixel image to form an error image that is compressed and encoded as a first enhancement 640.times.480 pixel layer. The decompressed base layer image is also up-sampled at step to produce an up-sampled 640.times.480 pixel image that is subtracted from the original 640.times.480 pixel image 200 to yield an error image that is compressed to yield a second enhancement 320.times.240 pixel layer. Collectively, the base and enhancement layers comprise the transmitted embedded bit stream. At the receiving end, the decoder extracts from the embedded stream different streams at different spatial and temporal resolutions. Because decoding requires only additions and look-ups from a small stored table, decoding occurs in real-time.
摘要翻译：提供了一种基于软件的编码器，用于在异构网络上运行的端到端可伸缩视频传送系统。编码器利用基于拉普拉斯金字塔分解的可扩展视频压缩算法来生成嵌入信息流。解码器对最高分辨率的原始图像（例如，640×480像素）进行抽取，以产生被抽取的中间的320×240像素图像，以产生被压缩形成可编码的基本层160×120像素图像的中间160×120像素图像。该基层图像被解压缩以形成通过内插进行上采样以产生上采样的320×240像素图像的图像。从中间320×240像素图像中减去该上采样图像，以形成被压缩并编码为第一增强640×480像素层的误差图像。解压缩的基层图像也被逐步上采样，以产生从原始640×480像素图像200中减去的上采样的640×480像素图像，以产生被压缩以产生第二增强320×240像素层的误差图像。总的来说，基础层和增强层包括传输的嵌入位流。在接收端，解码器以不同的空间和时间分辨率从嵌入的流中提取不同的流。因为解码只需要从小的存储表中增加和查找，所以解码发生在实时中。

3. 发明授权

US06694379B1 Method and apparatus for providing distributed clip-list management 有权
标题翻译：提供分布式剪辑列表管理的方法和装置
公开(公告)号：US06694379B1
公开(公告)日：2004-02-17
申请号：US09289802
申请日：1999-04-09
申请人： James G. Hanko , Alan T. Ruberg , J. Duane Northcutt , Gerard A. Wall
发明人： James G. Hanko , Alan T. Ruberg , J. Duane Northcutt , Gerard A. Wall
IPC分类号： G06F954
CPC分类号： G06F3/14 , G06T1/60 , G09G5/02 , G09G5/14 , G09G5/393 , G09G2340/02 , G09G2340/0407 , H04N5/44591 , H04N21/4143 , H04N21/4316 , H04N21/440263 , H04N21/4438
摘要： A method and apparatus for providing distributed clip-list management. In an embodiment, an application maintains a local clip-list that identifies those portions of a remote frame buffer that are unambiguously associated with the given application, as well as those portions of the remote frame buffer which are disputed between the given application and one or more other applications. Applications may enforce a dispute policy with respect to writing image data to disputed regions of the frame buffer. Applications are able to write to the frame buffer asynchronously, without the use of a frame buffer lock. A clip manager maintains a global clip-list, and responds to messages from the applications by updating the global clip-list and informing those other applications of relevant changes to their own respective local clip-lists. The portions of an application's clip-list that have been previously claimed by other applications and which have not been acknowledged as lost by the other applications are referred to as disputed regions. Each application is kept informed about its current clip-list and any disputed regions within its current clip-list. The clip manager may be implemented as part of the window manager, or as a separate process. A policing process may be implemented at or in line with the frame buffer to ensure that an application does not write to portions of the frame buffer that have been granted to another application. The operations of the policing process are coordinated by the clip manager.
摘要翻译：一种用于提供分布式剪辑列表管理的方法和装置。在一个实施例中，应用程序维护本地剪辑列表，其识别与给定应用程序明确相关联的远程帧缓冲器的那些部分，以及远程帧缓冲器在给定应用程序之间有争议的那些部分，更多的其他应用。应用程序可以执行关于将图像数据写入帧缓冲区的争议区域的争议策略。应用程序能够异步地写入帧缓冲区，而不需要使用帧缓冲区锁定。剪辑管理器维护全局剪辑列表，并通过更新全局剪辑列表并向其他应用程序通知相应的本地剪辑列表的相关更改来响应来自应用程序的消息。以前由其他应用程序声明并且未被其他应用程序丢失的应用程序的剪辑列表的部分被称为有争议的区域。每个应用程序随时被通知其当前的剪辑列表和其当前剪辑列表中的任何有争议的区域。剪辑管理器可以被实现为窗口管理器的一部分，或作为单独的进程。可以在帧缓冲器处或与帧缓冲器一致地实现监管过程，以确保应用程序不写入已经被授予另一应用的帧缓冲器的部分。管理过程的操作由剪辑管理器进行协调。

4. 发明授权

US07346689B1 Computer architecture having a stateless human interface device and methods of use 失效
标题翻译：具有无状态人机界面设备和使用方法的计算机体系结构
公开(公告)号：US07346689B1
公开(公告)日：2008-03-18
申请号：US09063335
申请日：1998-04-20
申请人： J. Duane Northcutt , James G. Hanko , Alan T. Ruberg , Gerard A Wall , Lawrence L. Butcher , Neil C. Wilhelm
发明人： J. Duane Northcutt , James G. Hanko , Alan T. Ruberg , Gerard A Wall , Lawrence L. Butcher , Neil C. Wilhelm
IPC分类号： G06F13/00
CPC分类号： G06F15/173 , H04L29/06 , H04L67/08 , H04L67/10 , H04L67/16 , H04L69/08 , H04L69/329
摘要： The invention provides a central office metaphor to computing, where features and functions are provided by a one or more servers and communicated to an appliance terminal through a network. Data providers are defined as “services” and are provided by one or more processing resources. The services communicate to display terminals through a network, such as Ethernet. The terminals are configured to display data, and to send keyboard, cursor, audio, and video data through the network to the processing server. Functionality is partitioned so that databases, server and graphical user interface functions are provided by the services, and human interface functionality is provided by the terminal. Communication with the terminals from various services is accomplished by converting disparate output to a common protocol. Appropriate drivers are provided for each service to allow protocol conversion. Multiple terminals are coupled to the network. Users can enable their unique session at any one of the terminals by inserting a “smart card” into a card reader. Removing the card disables the session. Re-inserting the card into the same or any other terminal re-enables the session.
摘要翻译：本发明提供了一种计算机的中心局比喻，其中特征和功能由一个或多个服务器提供并通过网络传送到设备终端。数据提供者被定义为“服务”，并由一个或多个处理资源提供。服务通过诸如以太网的网络来显示终端。终端配置为显示数据，并通过网络将键盘，光标，音频和视频数据发送到处理服务器。功能被分区，使得服务提供数据库，服务器和图形用户界面功能，并且终端提供人机接口功能。通过将不同的输出转换为通用协议来实现与各种服务的终端的通信。为每个服务提供适当的驱动程序以允许协议转换。多个终端耦合到网络。用户可以通过在读卡器中插入“智能卡”来启用其任何一个终端的独特会话。删除卡会禁用会话。将卡重新插入相同或任何其他终端重新启用会话。

5. 发明授权

US06185737B2 Method and apparatus for providing multi media network interface 失效
标题翻译：提供多媒体网络接口的方法和装置
公开(公告)号：US06185737B2
公开(公告)日：2001-02-06
申请号：US09108062
申请日：1998-06-30
申请人： J. Duane Northcutt , James G. Hanko , Alan T. Ruberg , Gerard A. Wall , Lawrence L. Butcher
发明人： J. Duane Northcutt , James G. Hanko , Alan T. Ruberg , Gerard A. Wall , Lawrence L. Butcher
IPC分类号： H04N7173
CPC分类号： H04N7/148 , H04L29/06 , H04L29/06027 , H04L65/607 , H04L65/608 , H04L65/80
摘要： The present invention is a media interface unit that couples media input (e.g. cameras, microphones) to a network and can receive media input from a network and provide it to playback devices (e.g. monitors, speakers). The interface unit eliminates the need for a computer system when transmitting and receiving media data to and from the internet and other networks. The unit comprises analog audio and video inputs and outputs on one side, and a computer communications network interface on the other side. By coupling sources/sinks of audio/video to one side and by coupling the other side to a network, it is possible to send and receive audio and video data as though the digital communications network were the same as the cables typically used to transport analog audio and video. The invention functions as a multi-media network appliance.
摘要翻译：本发明是将媒体输入（例如，相机，麦克风）耦合到网络并且可以从网络接收媒体输入并将其提供给回放设备（例如，监视器，扬声器）的媒体接口单元。当从互联网和其他网络发送和接收媒体数据时，接口单元消除了计算机系统的需要。该单元包括一侧的模拟音频和视频输入和输出，另一侧包括计算机通信网络接口。通过将音频/视频的源/汇耦合到一侧并通过将另一方耦合到网络，可以发送和接收音频和视频数据，就像数字通信网络与通常用于传输模拟的电缆相同音频和视频。本发明用作多媒体网络设备。

6. 发明授权

US06912578B1 Method and apparatus for improving utilization of a resource on a shared client 有权
标题翻译：提高共享客户端资源利用率的方法和装置
公开(公告)号：US06912578B1
公开(公告)日：2005-06-28
申请号：US09513652
申请日：2000-02-25
申请人： James G. Hanko , J. Duane Northcutt , Gerard A. Wall
发明人： James G. Hanko , J. Duane Northcutt , Gerard A. Wall
IPC分类号： G06F9/50 , G06F15/16
CPC分类号： G06F9/5011 , G06F9/485 , G06F9/5022 , G06F2209/508
摘要： The present invention provides a method and apparatus for improving the utilization of a resource in a shared client computer environment. The invention overcomes the problem inherent in using traditional computer programs on a shared client, by monitoring the status of an application, determining when an application does not need a resource, and causing the application to stop consuming the resource. In one embodiment, resource consumption is not halted, but the application is caused to use less of the resource. The invention detects when a user has stopped interaction with an application. This can occur, for instance, when the user removes an identifier from the end user terminal. When the user interaction stops, the invention has a mechanism to stop a program from consuming resources (or to reduce its resource usage) and to restart it (or return it to its original state) later. The invention further includes a procedure for stopping or reducing the resource usage of the application when the user has stopped interacting with it, and to restart it when the user begins (or is capable of beginning) interaction with it. All this is done without modifying the application in any way.
摘要翻译：本发明提供一种用于提高共享客户端计算机环境中资源利用率的方法和装置。本发明克服了在共享客户端上使用传统计算机程序所固有的问题，通过监视应用程序的状态，确定应用程序什么时候不需要资源，并使应用程序停止消耗资源。在一个实施例中，资源消耗不被停止，但是应用被使用较少的资源。本发明检测用户何时停止与应用的交互。例如，当用户从最终用户终端移除标识符时，可能会发生这种情况。当用户交互停止时，本发明具有停止程序消耗资源（或减少其资源使用）并重新启动它（或将其返回到其初始状态）的机制。本发明还包括当用户停止与其交互时停止或减少应用的资源使用的过程，并且当用户开始（或能够开始）与其交互时重新启动它。所有这一切都是在没有以任何方式修改应用程序的情况下完成的。

7. 发明授权

US06678741B1 Method and apparatus for synchronizing firmware 有权
标题翻译：用于同步固件的方法和装置
公开(公告)号：US06678741B1
公开(公告)日：2004-01-13
申请号：US09289787
申请日：1999-04-09
申请人： J. Duane Northcutt , Gerard A. Wall , James G. Hanko , Benjamin H. Stoltz
发明人： J. Duane Northcutt , Gerard A. Wall , James G. Hanko , Benjamin H. Stoltz
IPC分类号： G06F1516
CPC分类号： G06F8/65 , Y10S707/99938 , Y10S707/99952 , Y10S707/99953
摘要： The invention is a method and apparatus for synchronizing firmware associated with a first computer device and a second computer device, such as a server and a client computer. In accordance with one embodiment of the invention, the method comprises the steps of providing information regarding a characteristic of the firmware associated with the first and second devices, comparing the provided firmware information to determine if the firmware is synchronized, and associating new firmware with the second device to synchronize the firmware if the firmware is found to not be synchronized in the comparing step. In one or more embodiments of the invention, the firmware associated with the second device is not modified unless the integrity of the firmware to be installed on the second device is verified using a digital signature.
摘要翻译：本发明是用于同步与第一计算机设备和第二计算机设备（例如服务器和客户端计算机）相关联的固件的方法和装置。根据本发明的一个实施例，该方法包括以下步骤：提供关于与第一和第二设备相关联的固件的特性的信息，比较所提供的固件信息以确定固件是否同步，以及将新固件与如果在比较步骤中发现固件不被同步，则第二设备来同步固件。在本发明的一个或多个实施例中，与第二设备相关联的固件不被修改，除非使用数字签名验证要安装在第二设备上的固件的完整性。

8. 发明授权

US06493041B1 Method and apparatus for the detection of motion in video 失效
标题翻译：用于检测视频中运动的方法和装置
公开(公告)号：US06493041B1
公开(公告)日：2002-12-10
申请号：US09108066
申请日：1998-06-30
申请人： James G. Hanko , J. Duane Northcutt , Gerard A. Wall , Lawrence L. Butcher
发明人： James G. Hanko , J. Duane Northcutt , Gerard A. Wall , Lawrence L. Butcher
IPC分类号： H04N718
CPC分类号： H04N5/144
摘要： The present invention comprises a method and apparatus for detection motion in video in which frames from an incoming video stream are digitized. The pixels of each incoming digitized frame are compared to the corresponding pixels of a reference frame, and differences between incoming pixels and reference pixels are determined. If the pixel difference for a pixel exceeds an applicable pixel difference threshold, the pixel is considered to be “different”. If the number of “different” pixels for a frame exceeds an applicable frame difference threshold, motion is considered to have occurred, and a motion detection signal is emitted. In one or more other embodiments, the applicable frame difference threshold is adjusted depending upon the current average motion being exhibited by the most recent frames, thereby taking into account “ambient” motion and minimizing the effects of phase lag. In one or more embodiments, different pixel difference thresholds may be assigned to different pixels or groups of pixels, thereby making certain regions of a camera's field of view more or less sensitive to motion. In one or more embodiments of the invention, a new reference frame is selected when the first frame that exhibits no motion occurs after one or more frames that exhibit motion.
摘要翻译：本发明包括一种用于在视频中检测运动的方法和装置，其中来自输入视频流的帧被数字化。将每个输入的数字化帧的像素与参考帧的对应像素进行比较，并确定输入像素和参考像素之间的差异。如果像素的像素差超过可应用的像素差阈值，则认为像素“不同”。如果帧的“不同”像素的数量超过适用的帧差阈值，则认为发生了运动，并且发出运动检测信号。在一个或多个其它实施例中，根据最近帧所呈现的当前平均运动来调节适用的帧差阈值，从而考虑到“环境”运动并最小化相位滞后的影响。在一个或多个实施例中，可以将不同的像素差值阈值分配给不同的像素或像素组，从而使得相机的视野的某些区域或多或少对运动敏感。在本发明的一个或多个实施例中，当在表现出运动的一个或多个帧之后发生不发生运动的第一帧时，选择新的参考帧。

9. 发明授权

US06654806B2 Method and apparatus for adaptably providing data to a network environment 有权
标题翻译：适用于向网络环境提供数据的方法和装置
公开(公告)号：US06654806B2
公开(公告)日：2003-11-25
申请号：US09289801
申请日：1999-04-09
申请人： Gerard A. Wall , James G. Hanko , J. Duane Northcutt , Alan T. Ruberg
发明人： Gerard A. Wall , James G. Hanko , J. Duane Northcutt , Alan T. Ruberg
IPC分类号： G06F516
CPC分类号： H04L47/822 , H04L12/1836 , H04L47/10 , H04L47/15 , H04L47/70 , H04L47/748 , H04L47/806 , H04L47/808 , H04N7/17318 , H04N21/234309 , H04N21/23439 , H04N21/25875 , H04N21/25891 , H04N21/26216 , H04N21/4438 , H04N21/4753 , H04N21/6125 , H04N21/6405
摘要： A method and apparatus for adaptably providing data to a virtual desktop system is described. The computational service provider is configured to prepare and transmit one or more data streams through a viable interconnection fabric to multiple HIDs. The data stream is configured by the computational service provider to adaptably meet the performance needs of the HID receiving the data stream. This enables multiple HIDs to receive variants of the same data stream that may differ in quantity, quality, and/or data format. In one embodiment of the invention, a decode module prepares data for transport by separating decoded data into individual processes. Before a HID may connect to a process the HID is authenticated. The processes are further adjusted by a resource optimization module to take into account the characteristics of each HID requesting access. The resource optimization module also takes into account the characteristics of the interconnection fabric coupling the HID and the computational service provider.
摘要翻译：描述了一种适用于向虚拟桌面系统提供数据的方法和装置。计算服务提供商被配置为通过可行的互连结构准备和传送一个或多个数据流到多个HID。数据流由计算服务提供商配置，以适应性地满足接收数据流的HID的性能需求。这使得多个HID可以接收数量，质量和/或数据格式可能不同的相同数据流的变体。在本发明的一个实施例中，解码模块通过将解码的数据分离成各个进程来准备用于传输的数据。在HID可以连接到进程之前，HID被认证。这些进程由资源优化模块进一步调整以考虑每个HID请求访问的特性。资源优化模块还考虑了耦合HID和计算服务提供商的互连结构的特性。

10. 发明授权

US06639604B1 Method and apparatus for colormapping 有权
标题翻译：色彩的方法和装置
公开(公告)号：US06639604B1
公开(公告)日：2003-10-28
申请号：US09289800
申请日：1999-04-09
申请人： James G. Hanko , J. Duane Northcutt , Gerard A. Wall
发明人： James G. Hanko , J. Duane Northcutt , Gerard A. Wall
IPC分类号： G09G502
CPC分类号： G06T11/001 , G09G5/14
摘要： A method for displaying color values in a plurality of images on a display screen in a computer graphics system, wherein the images correspond to a plurality of applications. The graphics system includes a primary frame buffer for pixel values to be displayed in the images, and a plurality of colormap tables related to the images for providing color values to be displayed in the images. A pseudo frame buffer is provided for the applications to store source pixel values for display in the corresponding images. To display the source pixel values in the pseudo frame buffer, for each source pixel the graphics system performs the steps of: identifying the image corresponding to the source pixel value; selecting a colormap table corresponding to the identified image; using the source pixel value as an index to select a color value from the selected colormap table; and storing the selected color value as a pixel value in the primary frame buffer to be displayed. The primary frame buffer may be a pseudo frame buffer implemented in software for providing source data to an HID display through an interconnect.
摘要翻译：一种用于在计算机图形系统中的显示屏上显示多个图像中的颜色值的方法，其中所述图像对应于多个应用。图形系统包括用于要在图像中显示的像素值的主帧缓冲器，以及与用于提供要在图像中显示的颜色值的图像相关的多个色彩图。为应用程序提供伪帧缓冲器以存储用于在相应图像中显示的源像素值。为了在伪帧缓冲器中显示源像素值，对于每个源像素，图形系统执行以下步骤：识别与源像素值对应的图像; 选择与识别的图像相对应的色彩图; 使用源像素值作为索引从所选择的色彩图中选择颜色值; 并将所选择的颜色值作为像素值存储在要显示的主帧缓冲器中。主帧缓冲器可以是在软件中实现的伪帧缓冲器，用于通过互连向HID显示器提供源数据。

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