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131. 发明申请

US20100045876A1 APPARATUS AND METHOD FOR SENSING AN ATSC SIGNAL IN LOW SIGNAL-TO -NOISE RATIO 审中-公开
标题翻译：用于感测低信号 - 非 - 比率的ATSC信号的装置和方法
公开(公告)号：US20100045876A1
公开(公告)日：2010-02-25
申请号：US12448487
申请日：2007-06-20
申请人： Wen Gao , Hou-Shin Chen
发明人： Wen Gao , Hou-Shin Chen
IPC分类号： H04N5/50
CPC分类号： H04N5/44 , H04N21/41407 , H04N21/4382
摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and a signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an Advanced Television Systems Committee (ATSC) signal was not detected. The WRAN receiver performs a method comprising the steps of: dividing a total observation time looking for an ATSC data segment sync signal into multiple slices; computing at least one statistic for each slice; computing at least one overall statistic from the statistics computed for each slice; determining if the at least one overall statistic is greater than a threshold; and if the overall statistic is greater than the threshold, determining that an ATSC signal is present, otherwise, determining that an ATSC signal is not present.
摘要翻译：无线区域网络（WRAN）接收机包括用于通过多个信道中的一个与无线网络通信的收发器，以及用于形成支持的频道列表的信号检测器，所述信道列表包括高级没有发现电视系统委员会（ATSC）信号。 WRAN接收机执行一种方法，包括以下步骤：将寻找ATSC数据段同步信号的总观测时间除以多个片; 计算每个切片的至少一个统计量; 从为每个切片计算的统计信息计算至少一个总体统计量; 确定所述至少一个总统计是否大于阈值; 并且如果总体统计量大于阈值，则确定存在ATSC信号，否则确定不存在ATSC信号。

132. 发明申请

US20090161774A1 Apparatus and Method for Dynamic Frequency Selection in ofdm Networks 审中-公开
标题翻译：网络中动态频率选择的装置与方法
公开(公告)号：US20090161774A1
公开(公告)日：2009-06-25
申请号：US12084515
申请日：2006-11-01
申请人： Hang Liu , Wen Gao
发明人： Hang Liu , Wen Gao
IPC分类号： H04L27/28
CPC分类号： H04W16/10 , H04L5/0037 , H04L5/0044 , H04L5/0062 , H04W52/04
摘要： A wireless endpoint is a Wireless Regional Area Network (WRAN) endpoint, such as a base station (BS) or customer premise equipment (CPE). The WRAN endpoint can transmit an orthogonal frequency division multiplexed (OFDM) signal comprising 2048 subcarriers in a channel. The 2048 subcarriers are divided into 16 subcarrier sets, or subchannels, each subcarrier set comprising 128 subcarriers. However, upon detection of an incumbent narrowband signal in the channel, the WRAN endpoint forms the OFDM signal for transmission in such a way that the WRAN endpoint excludes use of those one, or more, of the subcarrier sets that would interfere with the incumbent narrowband signal.
摘要翻译：无线终端是无线区域网络（WRAN）端点，例如基站（BS）或客户驻地设备（CPE）。 WRAN端点可以在信道中发送包括2048个子载波的正交频分复用（OFDM）信号。 2048个子载波被分成16个子载波组或子信道，每个子载波集包括128个子载波。然而，在检测到信道中的现有窄带信号时，WRAN端点形成用于传输的OFDM信号，使得WRAN端点排除使用将干扰现有窄带的子载波集中的那些或更多个信号。

133. 发明申请

US20090161024A1 Apparatus and Method for Sensing an ATSC Signal in Low Signal-To-Noise Ratio 审中-公开
标题翻译：用于感测低信噪比的ATSC信号的装置和方法
公开(公告)号：US20090161024A1
公开(公告)日：2009-06-25
申请号：US12084375
申请日：2006-06-05
申请人： Wen Gao , Paul Gothard Knutson , Joshua Lawrence Koslov
发明人： Wen Gao , Paul Gothard Knutson , Joshua Lawrence Koslov
IPC分类号： H04N5/50
CPC分类号： H04N5/46 , H04L27/066 , H04L2027/0055 , H04N5/50 , H04N17/04 , H04N21/4345 , H04N21/4383 , H04N21/6131 , H04W16/14
摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected, wherein the ATSC signal detector includes a filter matched to a PN511 sequence of an ATSC signal for filtering a received signal on one of the number of channels for providing a filtered signal for use in determining if the received signal is an ATSC signal. The ATSC signal detector can be a coherent or a non-coherent ATSC signal detector.
摘要翻译：无线区域网络（WRAN）接收机包括用于通过多个信道之一与无线网络进行通信的收发机，以及用于形成支持的频道列表的高级电视系统委员会（ATSC）信号检测器，其包括没有检测到ATSC信号的信道数量，其中ATSC信号检测器包括与ATSC信号的PN511序列匹配的滤波器，用于对多个信道之一上的接收信号进行滤波，以提供滤波信号用于确定如果接收到的信号是ATSC信号。 ATSC信号检测器可以是相干或非相干ATSC信号检测器。

134. 发明申请

US20070200737A1 Entropy Coding Method For Coding Video Prediction Residual Coefficients 有权
标题翻译：用于编码视频预测残差系数的熵编码方法
公开(公告)号：US20070200737A1
公开(公告)日：2007-08-30
申请号：US10572440
申请日：2004-07-05
申请人： Wen Gao , Debin Zhao , Qiang Wang , Siwei Ma , Yan Lu
发明人： Wen Gao , Debin Zhao , Qiang Wang , Siwei Ma , Yan Lu
IPC分类号： H03M7/00
CPC分类号： H04N19/186 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/61
摘要： The present invention provides an entropy coding method for coding video prediction residual coefficients, comprising the steps of: firstly, zig-zag scanning coefficients of blocks to be coded to form a sequence of (level, run) pairs; secondly, selecting a type of code table for coding a current image block to be coded according to a type of macro block; then switching and coding each (level, run) pair in the obtained sequence of (level, run) pairs with multiple tables, with the reverse zig-zag scanning order for the coding order of the pairs; at last, coding a flag of End of Block EOB with the current code table. The present invention of an entropy coding method for coding video prediction residual coefficients fully considers the context information and the rules of symbol's conditional probability distribution by designing different tables for different block types and different regions of level. The coding efficiency is improved and no impact to computational implementation complexity is involved.
摘要翻译：本发明提供了一种用于对视频预测残差系数进行编码的熵编码方法，包括以下步骤：首先，要编码的块的Z字形扫描系数形成（级，运行）对的序列; 其次，根据宏块的类型选择用于编码要编码的当前图像块的码表类型; 然后在所获得的（多个表中）对的序列中对每个（电平，运行）对进行切换和编码，其中用于编码顺序的反向Z字形扫描顺序; 最后用当前代码表编码块EOB结束标志。用于编码视频预测残差系数的熵编码方法的本发明通过为不同的块类型和不同的级别的区域设计不同的表格来充分地考虑上下文信息和符号的条件概率分布规则。编码效率得到提高，对计算实现的复杂性没有影响。

135. 发明申请

US20060111105A1 System and method for managing secure registration of a mobile communications device 有权
标题翻译：用于管理移动通信设备的安全注册的系统和方法
公开(公告)号：US20060111105A1
公开(公告)日：2006-05-25
申请号：US10996925
申请日：2004-11-24
申请人： David Bajar , Allan Lewis , Wen Gao , Herb Little , James Godfrey , Marc Plumb , Michael Brown , Neil Adams
发明人： David Bajar , Allan Lewis , Wen Gao , Herb Little , James Godfrey , Marc Plumb , Michael Brown , Neil Adams
IPC分类号： H04Q7/20
CPC分类号： H04W8/02 , H04W12/06
摘要： In one embodiment, a scheme is provided for managing secure registration of a mobile communications device. Upon being provided with an upgraded registration process that requires encryption, the mobile communications device has the option of continuing to register with a network node using a downgraded registration process within a specified time window which involves unencrypted registration requests and responses. Thereafter, the mobile communications device is operable to select between the upgraded and downgraded registration processes.
摘要翻译：在一个实施例中，提供了一种用于管理移动通信设备的安全注册的方案。在提供需要加密的升级注册过程之后，移动通信设备可以选择在指定的时间窗口内使用降级的注册过程在网络节点上注册，该时间窗口涉及未加密的注册请求和响应。此后，移动通信设备可操作以在升级和降级的注册过程之间进行选择。

136. 发明授权

US09838152B2 Modulation indication method for communication systems 有权
公开(公告)号：US09838152B2
公开(公告)日：2017-12-05
申请号：US12448187
申请日：2006-12-14
申请人： Joshua Lawrence Koslov , Wen Gao , Yik Chung Wu
发明人： Joshua Lawrence Koslov , Wen Gao , Yik Chung Wu
IPC分类号： H04L27/00 , H04L1/00 , H04L1/16
CPC分类号： H04L1/0025 , H04L1/0003 , H04L1/1607
摘要： A method and apparatus for improving performance in communication systems is provided. In one implementation, information is accessed indicating the quality of at least one communication channel. Based on the accessed information, a modulation scheme is indicated for sending data over the channel encoded with a rateless code. Various different information relating to the communication channel can be used to determine a quality metric for the channel.

137. 发明授权

US09793931B2 Method and apparatus for detecting transmitters for a white space device 有权
公开(公告)号：US09793931B2
公开(公告)日：2017-10-17
申请号：US13520382
申请日：2010-01-15
申请人： Paul Gothard Knutson , Wen Gao , Benyuan Zhang , Hou-Shin Chen
发明人： Paul Gothard Knutson , Wen Gao , Benyuan Zhang , Hou-Shin Chen
IPC分类号： H04W16/14 , H04B1/04 , H04L12/66 , H04N21/436 , H04N21/4363 , H04W28/04
CPC分类号： H04B1/0475 , H04L12/66 , H04N21/43615 , H04N21/43637 , H04W28/04
摘要： The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client and mitigating interference thereon. Specifically, the present invention relates to transmitting an audio/video program on two white space channels and alternately stopping transmission on one of said channels to search for external transmissions on the white space channel. The present invention permits the wireless home gateway to continuously transmit an audio/video program to a client while periodically searching for transmitters on each of the white space channels.

138. 发明授权

US09729280B2 ARQ with adaptive modulation for communication systems 有权
公开(公告)号：US09729280B2
公开(公告)日：2017-08-08
申请号：US12448118
申请日：2006-12-14
申请人： Joshua Lawrence Koslov , Wen Gao , Yik Chung Wu
发明人： Joshua Lawrence Koslov , Wen Gao , Yik Chung Wu
IPC分类号： H04L1/18 , H04L1/00 , H04L1/16
CPC分类号： H04L1/188 , H04L1/0003 , H04L1/0025 , H04L1/1671 , H04L1/1848 , H04L1/1877
摘要： A method and apparatus for improving performance in communication systems is provided. In order to maintain the real time constraints of the communication systems, time intervals and indication signals are used in various implementations to indicate and/or force subsequent transmissions of encoded data. An indication signal can include, for example, modulation modification information for subsequent transmissions. In various other implementations, a quality metric is computed for the communication channel and is used to provide modified modulation scheme information to be subsequently used on the communication channel.

139. 发明授权

US09729274B2 Rateless encoding in communication systems 有权
公开(公告)号：US09729274B2
公开(公告)日：2017-08-08
申请号：US12448234
申请日：2007-06-25
申请人： Joshua Lawrence Koslov , Wen Gao , Yik Chung Wu
发明人： Joshua Lawrence Koslov , Wen Gao , Yik Chung Wu
IPC分类号： H04L27/00 , H04L1/00 , H04L1/18
CPC分类号： H04L1/0041 , H04L1/0003 , H04L1/0057 , H04L1/0065 , H04L1/1819
摘要： A method and apparatus for improving performance in communication systems is provided. In one implementation received encoded data is decoded using an inner rateless decoder to produce a series of decoded rateless outputs. The series of decoded rateless outputs is combined to produce a block, and the block is decoded using an outer block decoder. In another implementation, encoded data for a data block encoded with a rateless code is received. It is determined that an initial amount of mutual information for the data block has been received, the initial amount being an amount expected to allow decoding of the received encoded data. Additional encoded data for the data block is received. It is determined that an extra amount of mutual information for the data block has been received beyond said initial amount of mutual information.

140. 发明授权

US09008179B2 Encoding of prediction residuals for lossless video coding 有权
标题翻译：无损视频编码的预测残差编码
公开(公告)号：US09008179B2
公开(公告)日：2015-04-14
申请号：US13539196
申请日：2012-06-29
申请人： Wen Gao , Gregory Cook , Mingyuan Yang , Jin Song , Haoping Yu
发明人： Wen Gao , Gregory Cook , Mingyuan Yang , Jin Song , Haoping Yu
IPC分类号： H04N19/50 , H04N19/13 , H04N19/176 , G06T9/00 , H04N19/146 , H04N19/46 , H04N19/129 , H04N19/61 , H04N19/593 , H04N19/132 , H04N19/136
CPC分类号： H04N19/146 , H04N19/129 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/61
摘要： An apparatus used in video encoding comprising a processor configured to generate a prediction block for a current block, compute a difference between the current block and the prediction block to generate a residual block, wherein the residual block comprises a plurality of residual values, and if the plurality of residual values include at least one non-zero residual value comprising at least one sign and at least one residual level, perform entropy encoding on the at least one sign; and perform entropy encoding on the at least one residual level, wherein one non-residual value comprises one sign and one residual level.
摘要翻译：一种用于视频编码的装置，包括：处理器，被配置为生成当前块的预测块，计算当前块与预测块之间的差以产生残差块，其中残余块包括多个残差值，如果所述多个残余值包括至少一个包含至少一个符号和至少一个剩余电平的非零残余值，对所述至少一个符号执行熵编码; 并且在所述至少一个残余级别上执行熵编码，其中一个非残差值包括一个符号和一个残余级别。

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