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    Very low bit rate video coding/decoding method and apparatus
    62.
    发明授权
    Very low bit rate video coding/decoding method and apparatus 失效
    非常低的比特率视频编码/解码方法和装置

    公开(公告)号：US6084912A

    公开(公告)日：2000-07-04

    申请号：US884666

    申请日：1997-06-27

    申请人： Glenn Reitmeier ,  Ya-Qin Zhang

    发明人： Glenn Reitmeier ,  Ya-Qin Zhang

    IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/28 ,  H04N7/36 ,  H04N7/18

    CPC分类号： H04N19/94 ,  H04N19/17 ,  H04N19/1883 ,  H04N19/503 ,  H04N19/61 ,  H04N19/63 ,  H04N19/647 ,  H04N19/115 ,  H04N19/146

    摘要： A method and apparatus for coding motion video (images) that produces very low bit rate video representation and minimizes the amount of data needed to be transferred to the decoder. The apparatus comprises a 2-pass segmentation section, a 2-stage motion estimation/compensation section that optionally employs Affine Motion Compensation (AMC), a wavelet transform section, a Zero-Tree Wavelet Quantization (ZTQ) section, a code book, a comparator, a reconstruction section, a coder, a frame memory and an entropy coder.

    摘要翻译： 用于编码产生非常低比特率视频表示的运动视频（图像）的方法和装置，并且使需要传送到解码器的数据量最小化。 该装置包括2通道分割部分，2阶段运动估计/补偿部分，其可选地采用仿射运动补偿（AMC），小波变换部分，零树小波量化（ZTQ）部分，码本， 比较器，重建部分，编码器，帧存储器和熵编码器。

    Vector transform coder with multi-layered codebooks and dynamic bit allocation
    63.
    发明授权
    Vector transform coder with multi-layered codebooks and dynamic bit allocation 失效
    矢量变换编码器与多层码本和动态位分配

    公开(公告)号：US5521988A

    公开(公告)日：1996-05-28

    申请号：US223206

    申请日：1994-04-05

    申请人： Weiping Li ,  Ya-Qin Zhang

    发明人： Weiping Li ,  Ya-Qin Zhang

    IPC分类号： H04N7/26 ,  G06T9/00 ,  H03M7/30 ,  H04N1/41 ,  G06K9/36

    CPC分类号： G06T9/008

    摘要： In a vector transform coding (VTC) scheme for image and video compression, a multi-layered codebook structure and a dynamic bit-allocation scheme in the vector transform domain are employed. The main advantage of this technique is that distortion is controlled by dynamically allocating more bits to vectors causing larger distortions and less bits to vectors causing smaller distortions.

    摘要翻译： 在用于图像和视频压缩的矢量变换编码（VTC）方案中，采用矢量变换域中的多层码本结构和动态比特分配方案。 该技术的主要优点是通过动态地分配更多的比特来控制失真，所述向量导致较大的失真，并且对于引起较小失真的向量的位数较少。

    Presentation facilitation
    64.
    发明授权
    Presentation facilitation 有权
    简报介绍

    公开(公告)号：US07640502B2

    公开(公告)日：2009-12-29

    申请号：US10957037

    申请日：2004-10-01

    申请人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

    发明人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

    IPC分类号： G06F3/00 ,  G06F3/048

    CPC分类号： G06F3/1423 ,  G06F3/0481 ,  G06F3/04842 ,  G06F2203/04803 ,  G06Q10/10

    摘要： Multiple schemes and techniques for facilitating presentations with an interactive application are described. For example, an interactive application provides a console view overlay for integrating multiple productivity applications into a graphical user interface (GUI) window. An interactive application can also share a selected display portion of the console view overlay with other interactive applications. As another example, presenters and other audience members can draw on the selected display portion being shared, and the drawn graphics are synchronously displayed by the other interactive applications. Interactive applications, as directed by their users, can join various member groups and specific presentations thereof. Moreover, a user may share content in accordance with membership grouping.

    摘要翻译： 描述了用于促进与交互应用的呈现的多种方案和技术。 例如，交互式应用程序提供了一个控制台视图覆盖，用于将多个生产力应用程序集成到图形用户界面（GUI）窗口中。 交互式应用程序还可以与其他交互式应用程序共享控制台视图覆盖的选定显示部分。 作为另一示例，演示者和其他观众成员可以在所选择的显示部分上进行共享，并且绘制的图形被其他交互式应用程序同步显示。 按照用户的指示，交互式应用程序可以加入各种成员组及其具体演示。 此外，用户可以根据会员分组来共享内容。

    Ultra wideband device
    66.
    发明申请
    Ultra wideband device 失效
    超宽带设备

    公开(公告)号：US20070055790A1

    公开(公告)日：2007-03-08

    申请号：US11218871

    申请日：2005-09-02

    申请人： Richard Yao ,  Steve Elliott ,  Ya-Qin Zhang

    发明人： Richard Yao ,  Steve Elliott ,  Ya-Qin Zhang

    IPC分类号： G06F15/16

    CPC分类号： H04L67/06 ,  H04L67/1097 ,  H04W28/14 ,  H04W80/00

    摘要： A portable ultra wideband device wirelessly connects to personal computers and other computing or consumer devices with an ultra-high speed link. The ultra wideband device provides data storage and retrieval functionalities. Data or information is formatted for ultra wideband wireless transmission at a transmitting device. The data is transmitted from an ultra wideband communication interface of the transmitting device over a wireless medium to the receiving device. The data transmission is transparent to the receiving device. An ultra wideband communication interface on the receiving device processes the data according to an ultra wideband protocol. The original data is parsed from the file and translated into its original format which is supported by an application on the receiving device. The original data is used to execute a read/write action on a storage device of the receiving device such that the translated data is automatically available to the receiving device.

    摘要翻译： 便携式超宽带设备通过超高速链路无线连接到个人计算机和其他计算或消费设备。 超宽带设备提供数据存储和检索功能。 数据或信息被格式化为在发射设备处的超宽带无线传输。 数据通过无线介质从发送设备的超宽带通信接口发送到接收设备。 数据传输对接收设备是透明的。 接收设备上的超宽带通信接口根据超宽带协议处理数据。 原始数据从文件中解析并转换为原始格式，该格式由接收设备上的应用程序支持。 原始数据用于在接收设备的存储设备上执行读/写操作，使得翻译的数据对于接收设备自动可用。

    System and method for reducing power consumption for wireless communications by mobile devices
    67.
    发明授权
    System and method for reducing power consumption for wireless communications by mobile devices 有权

    公开(公告)号：US07096034B2

    公开(公告)日：2006-08-22

    申请号：US09968380

    申请日：2001-10-01

    申请人： Qian Zhang ,  Wenwu Zhu ,  Ya-Qin Zhang ,  Ji Zhu

    发明人： Qian Zhang ,  Wenwu Zhu ,  Ya-Qin Zhang ,  Ji Zhu

    IPC分类号： H04B7/00 ,  H04Q7/00

    CPC分类号： H04W52/265 ,  H04W52/146 ,  H04W52/20 ,  H04W52/24 ,  H04W52/267 ,  H04W52/54

    摘要： A power control scheme for a wireless network communication system that includes a base station and multiple wireless mobile device dynamically adjusts transmission power of a mobile device in conjunction with adjusting its bit allocation in source coding and channel coding to minimize its total power consumption while maximizing the system capacity in terms of the total effective transmission rates received by the base station. The base station sets a target signal quality value for each mobile station, and the target values are determined by the base station such that the total effective data rate from all the mobile devices is maximized under constraints of the total received power and the error protection level requirements for the mobile devices. The base station periodically measures a signal quality value, such as a signal-to-interference ratio (SIR), from transmissions received by the base from each mobile device, compares it with the measured signal quality value for that mobile device, and sends a control signal instructing the mobile device to increase or decrease its transmission power based on the result of the comparison. When the mobile device receives the control signal, it determines an amount of adjustment to its transmission power by performing a minimum calculation under constraints on the total data distortion and the maximum transmission rate to adjust the parameters for source coding, channel coding, and transmission under the constraints to result in a redistribution of power between the components that provides the minimized total power consumption.

    Vector wavelet organization
    70.
    发明授权
    Vector wavelet organization 有权
    矢量小波组织

    公开(公告)号：US06298167B1

    公开(公告)日：2001-10-02

    申请号：US09177219

    申请日：1998-10-22

    申请人： Stephen A. Martucci ,  Iraj Sodagar ,  Ya-Qin Zhang

    发明人： Stephen A. Martucci ,  Iraj Sodagar ,  Ya-Qin Zhang

    IPC分类号： G06K936

    CPC分类号： H04N19/94 ,  H04N19/64 ,  H04N19/645 ,  H04N19/647

    摘要： Apparatus and method for encoding zerotrees in a wavelet-based coding technique. The method uses a depth-first pattern for traversing the zerotree, i.e., each branch of the tree, from parent to child to grandchild and so on, is fully traversed before a next branch is traversed. The depth-first tree traversal pattern is used to quantize the coefficients of the tree as well as to assign symbols to the quantized coefficients. The method assigns one of three symbols to each node: ZEROTREE ROOT, VALUED ZEROTREE ROOT, and VALUE. By using three symbols and the efficient tree traversal pattern, the method is substantially more efficient at encoding a zerotree than the prior art. Additionally, this concept is applied to the encoding of “vector” zerotrees.

    摘要翻译： 在基于小波的编码技术中编码零点的装置和方法。 该方法使用深度优先模式遍历零树，即树的每个分支，从父到子到孙，等等，在遍历下一个分支之前，完全遍历。 深度优先树遍历模式用于对树的系数进行量化，并将符号分配给量化系数。 该方法为每个节点分配三个符号之一：ZEROTREE ROOT，VALUED ZEROTREE ROOT和VALUE。 通过使用三个符号和有效的树遍历模式，该方法比现有技术在编码零树方面显着更有效率。 另外，这个概念被应用于“矢量”零点的编码。