公开(公告)号：US07792121B2

公开(公告)日：2010-09-07

申请号：US10336240

申请日：2003-01-03

申请人： R. Donald Thompson, III ,  Davide Massarenti ,  Cosmin A. Corbea ,  Gerald F. Cermak ,  Gideon A. Yuval

发明人： R. Donald Thompson, III ,  Davide Massarenti ,  Cosmin A. Corbea ,  Gerald F. Cermak ,  Gideon A. Yuval

IPC分类号： H04L12/56

CPC分类号： H04H60/06 ,  H04H60/14 ,  H04L12/1881 ,  H04L51/00 ,  H04L51/04 ,  H04L63/0428 ,  H04L63/123 ,  H04W72/005 ,  H04W72/1289

摘要： Serialized data from broadcast services is provided to a broadcast server for transmitting to one or more client devices. The serialized data may correspond to shared data, private data, or control data. Data is scheduled for transmission based on weighted priorities including quality of service metrics. The transmission frame is arranged according to a frame protocol that includes provisions for a table of contents indexing system for the shared data. Packets of shared data are formatted based on criteria that is known by the particular broadcast service and corresponding application that is resident on the client device. The client device receives the table of contents at the transport layer, and notifies applications of data that will be available in the next frame. Applications submit prioritized requests to the transport layer, requesting data in the next frame. Data is retrieved by the transport layer, and deserialized by handlers for each application.

摘要翻译： 来自广播服务的序列化数据被提供给广播服务器以发送到一个或多个客户端设备。 序列化数据可对应于共享数据，专用数据或控制数据。 基于加权优先级计划数据传输，包括服务质量度量。 传输帧根据包括用于共享数据的目录索引系统的规定的帧协议进行布置。 基于由特定广播服务所知的标准和驻留在客户端设备上的对应应用程序来格式化共享数据包。 客户端设备在传输层接收目录，并通知应用程序在下一帧中可用的数据。 应用程序将优先级请求提交给传输层，在下一帧中请求数据。 数据由传输层检索，并由处理程序对每个应用进行反序列化。

公开(公告)号：US07405736B2

公开(公告)日：2008-07-29

申请号：US11093324

申请日：2005-03-29

申请人： Nicholas P. Wilt ,  Gideon A. Yuval ,  Michael D. Stokes

发明人： Nicholas P. Wilt ,  Gideon A. Yuval ,  Michael D. Stokes

IPC分类号： G09G5/02

CPC分类号： H04N1/6016

摘要： An imaging or other sensory reproduction system efficiently converts image or other sensory data between a perceptual color space (e.g., the sRGB color space) and a physical color space (unity gamma) or other perceptual/physical sensory models that are related by an expression involving a computationally expensive exponential function. The imaging system calculates exponential functions that can be composed from computationally inexpensive operations, such as square root, square, reciprocal, as well as multiplications and/or additions and subtractions. These computationally less expensive functions are then combined, such as in a weighted and/or offset mean, summation or difference to approximate the computationally expensive exponential function. The imaging system evaluates the expression using the approximation to efficiently yield the converted image data. The efficient conversion between perceptual and physical color spaces allows operations, such as blending and anti-aliasing, to be performed in the physical color space before display of a perceptual color space image.

公开(公告)号：US07330864B2

公开(公告)日：2008-02-12

申请号：US09797937

申请日：2001-03-01

申请人： Gideon A. Yuval ,  Nicholas P. Wilt ,  James F. Blinn ,  Michael D. Stokes

发明人： Gideon A. Yuval ,  Nicholas P. Wilt ,  James F. Blinn ,  Michael D. Stokes

IPC分类号： G06F7/00 ,  G06F7/38

CPC分类号： H03M7/24 ,  G06F7/483 ,  G06F9/30025

摘要： A method for providing a 16-bit floating point data representation where the 16-bit floating point data representation may be operated upon by a microprocessors native floating point instruction set. The method contemplates the use a variety of techniques for converting the 16-bit floating point number into a representative native floating point value. Thereafter, the native microprocessor floating point instruction set may perform operations upon the converted data. Upon completion, the native floating point data representation may be converted back into the 16-bit floating point value.

摘要翻译： 一种用于提供16位浮点数据表示的方法，其中16位浮点数据表示可以由微处理器本地浮点指令集来操作。 该方法考虑使用各种技术将16位浮点数转换为代表性的本机浮点值。 此后，本地微处理器浮点指令集可以对转换的数据执行操作。 完成后，本地浮​​点数据表示可以转换回16位浮点值。

公开(公告)号：US06954214B2

公开(公告)日：2005-10-11

申请号：US09780325

申请日：2001-02-09

申请人： Nicholas P. Wilt ,  Gideon A. Yuval ,  Michael D. Stokes

发明人： Nicholas P. Wilt ,  Gideon A. Yuval ,  Michael D. Stokes

IPC分类号： H04N1/60 ,  G09G5/02 ,  G09G5/00

CPC分类号： H04N1/6016

摘要： An imaging or other sensory reproduction system efficiently converts image or other sensory data between a perceptual color space (e.g., the sRGB color space) and a physical color space (unity gamma) or other perceptual/physical sensory models that are related by an expression involving a computationally expensive exponential function. The imaging system calculates exponential functions that can be composed from computationally inexpensive operations, such as square root, square, reciprocal, as well as multiplications and/or additions and subtractions. These computationally less expensive functions are then combined, such as in a weighted and/or offset mean, summation or difference to approximate the computationally expensive exponential function. The imaging system evaluates the expression using the approximation to efficiently yield the converted image data. The efficient conversion between perceptual and physical color spaces allows operations, such as blending and anti-aliasing, to be performed in the physical color space before display of a perceptual color space image.

公开(公告)号：US5455600A

公开(公告)日：1995-10-03

申请号：US68925

申请日：1993-05-27

申请人： Steven J. Friedman ,  Karen A. Hargrove ,  Joseph M. Joy ,  Nathan P. Myhrvold ,  Sunita Shrivastava ,  Gideon A. Yuval

发明人： Steven J. Friedman ,  Karen A. Hargrove ,  Joseph M. Joy ,  Nathan P. Myhrvold ,  Sunita Shrivastava ,  Gideon A. Yuval

IPC分类号： G09G3/20 ,  G09G5/02 ,  G09G5/06 ,  H04N1/52 ,  G09G1/28

CPC分类号： G09G5/02 ,  G09G5/06 ,  H04N1/52 ,  G09G3/2051 ,  G09G3/2059

摘要： A high color resolution image is accurately approximated with a low resolution image through a unique combination of ordered dithering and error diffusion. The true color of each pixel is modified with error from previously rendered pixels and then dithered to an intermediate color of 15 bits. The intermediate color is then mapped to the nearest displayable color in a displayable color palette using a precomputed look-up table. Any error between a displayed color of a pixel and its true color is calculated and spread among neighboring pixels not yet rendered.

摘要翻译： 通过有序抖动和误差扩散的独特组合，高分辨率图像通过低分辨率图像精确近似。 每个像素的真实颜色由先前渲染的像素的错误修改，然后抖动到15位的中间色。 然后使用预先计算的查找表将中间颜色映射到可显示调色板中最接近的可显示颜色。 计算像素的显示颜色与其真实颜色之间的任何误差，并且在尚未呈现的相邻像素之间进行分散。

公开(公告)号：US5394518A

公开(公告)日：1995-02-28

申请号：US69173

申请日：1993-05-27

申请人： Steven J. Friedman ,  Gillian Furse ,  Karen A. Hargrove ,  Joseph M. Joy ,  Nathan P. Myhrvold ,  Sunita Shrivastava ,  Gideon A. Yuval

发明人： Steven J. Friedman ,  Gillian Furse ,  Karen A. Hargrove ,  Joseph M. Joy ,  Nathan P. Myhrvold ,  Sunita Shrivastava ,  Gideon A. Yuval

IPC分类号： G06T11/00 ,  G06F15/62

CPC分类号： G06T11/001

摘要： A custom palette comprises colors on a plurality of luminance levels consisting of colors of uniform luminance. The spacing in luminance between levels varies in relation to the luminance, the spacing between levels being closer at low luminance and increasing at greater luminance. The palette preferably includes a gray color from each luminance level, highly saturated colors at the vertices of every alternate level, and a selection of lower saturation colors encircling the gray color on each level. The selection of lower saturation colors preferably includes a higher concentration of flesh and sky colors.

公开(公告)号：US20100044438A1

公开(公告)日：2010-02-25

申请号：US12391155

申请日：2009-02-23

申请人： Yuqun Chen ,  Darko Kirovski ,  Yacov Yacobi ,  Gideon A. Yuval

发明人： Yuqun Chen ,  Darko Kirovski ,  Yacov Yacobi ,  Gideon A. Yuval

IPC分类号： G06K7/10 ,  G06K7/00

CPC分类号： G09F3/0297 ,  G06K19/08 ,  G06K19/086 ,  G09F3/0292 ,  H04W4/80 ,  H04W12/04 ,  H04W12/06

摘要： Techniques are disclosed to enable utilization of randomly-occurring features of a label (whether embedded or naturally inherent) to provide counterfeit-resistant and/or tamper-resistant labels. More specifically, labels including randomly-occurring features are scanned to determine the labels' features. The information from the scan is utilized to provide identifying indicia which uniquely identifies each label and may be later verified against the label features that are present to determine whether the label is genuine. In a described implementation, the identifying indicia may be cryptographically signed.

摘要翻译： 公开了能够利用标签的随机发生特征（无论是嵌入式还是天然固有的）来提供防伪和/或防篡改标签的技术。 更具体地，扫描包括随机发生的特征的标签以确定标签的特征。 来自扫描的信息用于提供唯一地识别每个标签的识别标记，并且可以随后针对存在的标签特征进行验证，以确定标签是否是真实的。 在所描述的实现中，识别标记可以被加密地签名。

公开(公告)号：US07580526B2

公开(公告)日：2009-08-25

申请号：US11134111

申请日：2005-05-20

申请人： Paul England ,  Andrew D. Rosen ,  Yacov Yacobi ,  Gideon A. Yuval

发明人： Paul England ,  Andrew D. Rosen ,  Yacov Yacobi ,  Gideon A. Yuval

IPC分类号： H04K1/00 ,  H04N7/167

CPC分类号： H04N9/641 ,  H04N5/765 ,  H04N5/775 ,  H04N5/913 ,  H04N7/163 ,  H04N7/1675 ,  H04N9/8042 ,  H04N21/2541 ,  H04N21/4122 ,  H04N21/4367 ,  H04N21/835 ,  H04N2005/91328 ,  H04N2005/91364

摘要： Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized use are described. Encrypted video signals are transmitted from a source device, e.g., display adapter, to a display device, e.g., monitor, over analog signal lines after the identity of the destination device is confirmed by receipt of a certificate assigned to the destination device. A session key, used for encrypting the analog signals, is generated and exchanged between the source and destination devices. The source and destination devices each include a pseudo-random number generator driven by the session key. As part of the encryption process a false video signal is generated. The false video signal and R, G, B video signals are transmitted to the display device over four lines. The lines used to transmit the R, G, B and false video signals are periodically swapped as a function of the output of the pseudo random number generator to encrypt, e.g., scramble, the video signals. To avoid having to provide an additional line between the display adapter and the display device beyond those used in conventional displays, horizontal synchronization information is combined with, e.g., modulated on, one or more of the other signals transmitted to the display. The horizontal sync line is then used to convey one of the four video signals. The display device extracts the horizontal timing information from the received video signals and decrypts the signals using the output of its pseudo random number generator to reverse the scrambling process used to encrypt the transmitted video signals.

摘要翻译： 描述用于保护未经授权的使用的受版权保护的信息（例如，视频信号）的方法和装置。 在通过接收到分配给目的地设备的证书来确认目的地设备的身份之后，加密的视频信号通过模拟信号线从源设备（例如，显示适配器）发送到显示设备，例如监视器。 用于加密模拟信号的会话密钥在源设备和目的设备之间生成和交换。 源和目的地设备每个都包括由会话密钥驱动的伪随机数发生器。 作为加密处理的一部分，生成假视频信号。 伪视频信号和R，G，B视频信号通过四行传输到显示设备。 用于传输R，G，B和假视频信号的线路作为伪随机数发生器的输出的周期性交换，以加密（例如）加扰视频信号。 为了避免在显示适配器和显示设备之间提供除了传统显示器中使用的显示适配器和显示设备之外的附加线路，水平同步信息与例如调制在传输到显示器的其它信号中的一个或多个相结合。 然后，水平同步线用于传送四个视频信号中的一个。 显示装置从接收到的视频信号中提取水平定时信息，并使用其伪随机数发生器的输出对信号进行解密，以反转用于加密所发送的视频信号的加扰处理。

公开(公告)号：US07546461B2

公开(公告)日：2009-06-09

申请号：US11168842

申请日：2005-06-28

申请人： Gideon A. Yuval ,  Ramarathnam Venkatesan

发明人： Gideon A. Yuval ,  Ramarathnam Venkatesan

IPC分类号： G06F9/00

CPC分类号： H04L9/0631 ,  H04L9/0643

摘要： Systems and/or methods are described that strengthen secure hash functions. These systems and/or methods may, in some embodiments, create a random-appearing element based on a message and using a process. The element may then be assembled with the message. This assembly may be hashed using a secure hash function. Using the same process and secure hash function, the message may later be authenticated.

摘要翻译： 描述了加强安全散列函数的系统和/或方法。 在一些实施例中，这些系统和/或方法可以基于消息和使用过程创建随机出现的元素。 然后元素可以与消息组合。 该组件可以使用安全散列函数进行散列。 使用相同的进程和安全的哈希函数，该消息可以稍后被认证。

公开(公告)号：US07497379B2

公开(公告)日：2009-03-03

申请号：US10789904

申请日：2004-02-27

申请人： Yuqun Chen ,  Darko Kirovski ,  Yacov Yacobi ,  Gideon A. Yuval

发明人： Yuqun Chen ,  Darko Kirovski ,  Yacov Yacobi ,  Gideon A. Yuval

IPC分类号： G06K7/10

CPC分类号： G09F3/0297 ,  G06K19/08 ,  G06K19/086 ,  G09F3/0292 ,  H04W4/80 ,  H04W12/04 ,  H04W12/06

摘要： Techniques are disclosed to enable utilization of randomly-occurring features of a label (whether embedded or naturally inherent) to provide counterfeit-resistant and/or tamper-resistant labels. More specifically, labels including randomly-occurring features are scanned to determine the labels' features. The information from the scan is utilized to provide identifying indicia which uniquely identifies each label and may be later verified against the label features that are present to determine whether the label is genuine. In a described implementation, the identifying indicia may be cryptographically signed.

摘要翻译： 公开了能够利用标签的随机发生特征（无论是嵌入式还是天然固有的）来提供防伪和/或防篡改标签的技术。 更具体地，扫描包括随机发生的特征的标签以确定标签的特征。 来自扫描的信息用于提供唯一地识别每个标签的识别标记，并且可以随后针对存在的标签特征进行验证，以确定标签是否是真实的。 在所描述的实现中，识别标记可以被加密地签名。