专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2011075155A1 METHOD AND APPARATUS FOR DETECTING TRANSMITTERS FOR A WHITE SPACE DEVICE 审中-公开
标题翻译：用于检测白色空间设备的发射机的方法和装置
公开(公告)号：WO2011075155A1
公开(公告)日：2011-06-23
申请号：PCT/US2010/000100
申请日：2010-01-15
申请人： THOMSON LICENSING , KNUTSON, Paul Gothard , GAO, Wen , ZHANG, Benyuan , CHEN, Hou-Shin
发明人： KNUTSON, Paul Gothard , GAO, Wen , ZHANG, Benyuan , CHEN, Hou-Shin
IPC分类号： H04N7/24 , H04W72/00
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.
摘要翻译：本发明涉及无线家庭网关设备和在家庭网关和客户端之间无线地传送音频和/或视频节目的方法，并减轻其上的干扰。具体而言，本发明涉及在两个白色空间信道上发送音频/视频节目，并且交替地停止在所述信道之一上的传输以搜索空白信道上的外部传输。本发明允许无线家庭网关在每个白色空间信道周期性地搜索发射机的同时，将音频/视频节目连续发送到客户端。

2. 发明申请

WO2011075154A1 METHOD AND APPARATUS FOR INTERFERENCE MITIGATION IN A WIRELESS HOME GATEWAY INTERFACE 审中-公开
标题翻译：无线家庭网关接口干扰减轻的方法和装置
公开(公告)号：WO2011075154A1
公开(公告)日：2011-06-23
申请号：PCT/US2010/000093
申请日：2010-02-09
申请人： THOMSON LICENSING , KNUTSON, Paul, Gothard , GAO, Wen , ZHANG, Benyuan , CHEN, Hou-Shin
发明人： KNUTSON, Paul, Gothard , GAO, Wen , ZHANG, Benyuan , CHEN, Hou-Shin
IPC分类号： H04N7/24 , H04W72/00
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 device and to interference mitigation techniques on such system. Specifically, the invention relates to transmitting an audio video program on a first channel, receiving a control signal from a remote control indicating interference on said first channel, changing the transmission channel to a second channel, and transmitting data indicating said second channel to said remote control.
摘要翻译：本发明涉及无线家庭网关设备和在家庭网关和客户端设备之间无线传送音频和/或视频节目的方法以及在这种系统上的干扰减轻技术。具体地，本发明涉及在第一信道上发送音频视频节目，从遥控器接收指示对所述第一信道的干扰的控制信号，将传输信道改变为第二信道，以及向所述远端发送指示所述第二信道的数据控制。

3. 发明申请

WO2010005470A2 BIT INTERLEAVED LDPC CODED MODULATION AND PHYSICAL LAYER SIGNALING 审中-公开
标题翻译：位切换LDPC编码调制和物理层信号
公开(公告)号：WO2010005470A2
公开(公告)日：2010-01-14
申请号：PCT/US2009/003578
申请日：2009-06-16
申请人： THOMSON LICENSING , LEI, Jing , GAO, Wen , KNUTSON, Paul, Gothard , CHEN, Hou-shin
发明人： LEI, Jing , GAO, Wen , KNUTSON, Paul, Gothard , CHEN, Hou-shin
IPC分类号： H04L1/00 , H03M13/27 , H03M13/35 , H03M13/25
CPC分类号： H04L1/0041 , H04L1/0057 , H04L1/007 , H04L1/0071
摘要： A proposal for a DVB-C2 baseline system, mainly focused on the channel coding and bit interleaving modules for spectrally efficient modulation is described. Due to the implementation simplicity of the low density parity check (LDPC) codes standardized in the DVB-S2 specification, it is proposed to extend their application to cable channels and choose the subset with long block length ( L = 64800 ) and medium to high rates ( 2/5 ≤ R ≤ 9/10 ) as the forward error correction (FEC) codes of DVB-C2 systems. Due to the non-uniform bitwise error protection inherent to high-order modulations (e.g. 256-QAM, 1024-QAM) and irregular LDPC codes (e.g. DVB-S2 codes), there exists a mismatch between the modulation and the channel coding in general if the two modules are developed independently but concatenated directly. To match the error resilience of a finite-length channel code and a given constellation, the principles described herein design a bit interleaver and insert it between the channel encoder and the modulator. As a result, a better tradeoff between bandwidth-efficiency and power-efficiency can be achieved with a minor increase of hardware complexity.
摘要翻译：描述了主要关注用于频谱高效调制的信道编码和比特交织模块的DVB-C2基线系统的提议。由于在DVB-S2规范中标准化的低密度奇偶校验（LDPC）码的实现简单性，提出将其应用扩展到有线信道，并选择长块长度（L = 64800）和中到高的子集速率（2/5 = R = 9/10）作为DVB-C2系统的前向纠错（FEC）码。由于高阶调制（例如256-QAM，1024-QAM）和不规则LDPC码（例如DVB-S2代码）固有的不均匀的逐位错误保护，一般在调制和信道编码之间存在不匹配如果两个模块是独立开发的，但是直接连接。为了匹配有限长度信道码和给定星座的错误弹性，本文描述的原理设计了一个比特交织器，并将其插入到信道编码器和调制器之间。因此，可以通过轻微增加硬件复杂性来实现带宽效率和功率效率之间更好的权衡。

4. 发明申请

WO2007133270A1 METHOD AND APPARATUS FOR TRANSMITTING DATA 审中-公开
标题翻译：用于发送数据的方法和装置
公开(公告)号：WO2007133270A1
公开(公告)日：2007-11-22
申请号：PCT/US2006/048320
申请日：2006-12-19
申请人： THOMSON LICENSING , KNUTSON, Paul, Gothard , RAMASWAMY, Kumar , KOSLOV, Joshua, Lawrence , VISWAMBHARAN, Manoj , ZHANG, Benyuan , GAO, Wen , WU, Yik, Chung
发明人： KNUTSON, Paul, Gothard , RAMASWAMY, Kumar , KOSLOV, Joshua, Lawrence , VISWAMBHARAN, Manoj , ZHANG, Benyuan , GAO, Wen , WU, Yik, Chung
IPC分类号： H04N7/24
CPC分类号： H04N5/60 , H04L65/607 , H04N5/04 , H04N19/40 , H04N19/61 , H04N21/234309 , H04N21/2365 , H04N21/23805 , H04N21/2381 , H04N21/26275 , H04N21/2662 , H04N21/41407 , H04N21/4347 , H04N21/4363 , H04N21/4381 , H04N21/4436 , H04N21/6112
摘要： An implementation provides a transmitter that separates sequential portions of data in a first set of data by time intervals allowing a power saving mode (1005). The transmitter transmits the sequential portions of data separated by respective time intervals having lengths configured to allow a receiver to enter and exit a power saving mode between receiving sequentially transmitted portions of data from the first set of data (1010). The transmitter separates sequential portions of data in a second set by time intervals that are not of sufficient length to allow a receiver to enter and exit a power saving mode during the time intervals (1015). The second set of data is then transmitted (1020).
摘要翻译：实现提供了一种发射机，其通过允许省电模式（1005）的时间间隔来分离第一组数据中的数据的顺序部分。发射机发送由具有被配置为允许接收机在从第一组数据（1010）接收顺序发送的数据部分之间进入和退出功率节省模式的具有长度的相应时间间隔分开的数据的顺序部分。发射机通过不足够长度的时间间隔分离第二组中的数据的顺序部分，以允许接收机在时间间隔（1015）期间进入和退出省电模式。然后传送第二组数据（1020）。

5. 发明申请

WO2007018534A1 TIME MULTIPLEXED NON-COHERENT MULTIPATH SEARCH METHOD AND APPARATUS 审中-公开
标题翻译：时间多重非相干多路径搜索方法和设备
公开(公告)号：WO2007018534A1
公开(公告)日：2007-02-15
申请号：PCT/US2005/027698
申请日：2005-08-05
申请人： THOMSON LICENSING , ZHANG, Benyuan , KNUTSON, Paul, Gothard , GAO, Wen
发明人： ZHANG, Benyuan , KNUTSON, Paul, Gothard , GAO, Wen
IPC分类号： H04B1/707
CPC分类号： H04B1/7113 , H04B1/7095 , H04B1/7117 , H04B2201/70711
摘要： An apparatus for performing a multipath search including a plurality of time-multiplexed chip correlators, wherein each of the plurality of time-multiplexed chip correlators has a pipeline, and further wherein each of the plurality of time-multiplexed chip correlators has a accumulation time is described. A method is described for performing a multipath search including performing multipath search slot processing, determining if a current multipath searching slot is a last multipath searching slot, if the current multipath searching slot is not the last multipath searching slot, then repeating the performing step, if the current multipath searching slot is the last multipath searching slot, then initializing a multipath searching slot index, determining if an non-coherent accumulation has been completed if the accumulation has not been completed then repeating all steps and if the accumulation has been completed, then search results are sorted to locate energy peaks corresponding to multipath locations.
摘要翻译：一种用于执行包括多个时分多路复用芯片相关器的多路径搜索的装置，其中所述多个时分多路复用芯片相关器中的每一个具有流水线，并且其中所述多个时分多路复用芯片相关器中的每一个具有累加时间描述。描述了一种用于执行多路径搜索的方法，包括执行多路径搜索时隙处理，确定当前多径搜索时隙是否是最后的多路径搜索时隙，如果当前多路径搜索时隙不是最后的多路径搜索时隙，则重复执行步骤，如果当前的多路径搜索时隙是最后的多路径搜索时隙，则初始化多路径搜索时隙索引，如果积累尚未完成则确定是否已经完成了非相干累积，然后重复所有步骤，并且如果累积已经完成，然后搜索结果被排序以定位与多路径位置相对应的能量峰值。

6. 发明申请

WO2010138206A1 METHOD AND APPARATUS FOR ITERATIVE TIMING AND CARRIER PHASE RECOVERY 审中-公开
标题翻译：用于迭代时序和载波相位恢复的方法和装置
公开(公告)号：WO2010138206A1
公开(公告)日：2010-12-02
申请号：PCT/US2010/001578
申请日：2010-05-28
申请人： THOMSON LICENSING , SCHMITT, Dirk , KNUTSON, Paul Gothard , GAO, Wen
发明人： SCHMITT, Dirk , KNUTSON, Paul Gothard , GAO, Wen
IPC分类号： H04L27/227 , H04L27/38
CPC分类号： H04L27/2678 , H04H40/90 , H04L7/0062 , H04L7/042 , H04L7/10 , H04L27/0014 , H04L27/2613 , H04L27/2656 , H04L27/2679 , H04L2027/0053 , H04L2027/0067 , H04W56/005
摘要： Methods and apparatus for iterative timing recovery are provided that can be used, for example, in phase shift keying systems. The methods include processing an input signal using an FEC decoder, using some of the information from the FEC decoding process to estimate the phase of the symbol carrier, and correcting the phase for subsequent input signals. Another of the embodiments under the present principles provides for post-processing of the phase estimation prior to using the estimate for phase correction. Another embodiment is a post processor that comprises a filter, including a Kalman filter. Another embodiment includes using a priori information embedded in the input signal, such as a synchronization signal, to assist the phase estimation process.
摘要翻译：提供了用于迭代定时恢复的方法和装置，其可以用于例如相移键控系统中。所述方法包括使用FEC解码器处理输入信号，使用来自FEC解码处理的一些信息来估计符号载波的相位，以及校正后续输入信号的相位。本原理的另一实施例提供了在使用相位校正估计之前的相位估计的后处理。另一个实施例是一种后处理器，其包括包括卡尔曼滤波器的滤波器。另一个实施例包括使用嵌入在诸如同步信号的输入信号中的先验信息来辅助相位估计处理。

7. 发明申请

WO2003081828A3 METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF A WIRELESS LOCAL AREA NETWORK USING A POSITION LOCATION SYSTEM 审中-公开
公开(公告)号：WO2003081828A3
公开(公告)日：2003-10-02
申请号：PCT/US2003/006765
申请日：2003-03-05
申请人： THOMSON LICENSING S.A. , RAMASWAMY, Kumar , LITWIN, Louis, Robert , KNUTSON, Paul, Gothard , GAO, Wen , WANG, Charles, Chuanming
发明人： RAMASWAMY, Kumar , LITWIN, Louis, Robert , KNUTSON, Paul, Gothard , GAO, Wen , WANG, Charles, Chuanming
IPC分类号： H04Q7/24
摘要： A method and apparatus for detecting the presence of a wireless local area network (WLAN) (104) determines a position of a mobile device (110) using a position location system (114), receives a position of a WLAN (104) from a location database(112), and determines whether the mobile device (110) is within a service area (108) of the WLAN (104) in response to the position of the mobile device (110) and the position of the WLAN (104).

8. 发明申请

WO2003081828A2 METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF A WIRELESS LOCAL AREA NETWORK USING A POSITION LOCATION SYSTEM 审中-公开
标题翻译：使用位置定位系统检测无线局域网的存在的方法和装置
公开(公告)号：WO2003081828A2
公开(公告)日：2003-10-02
申请号：PCT/US2003/006765
申请日：2003-03-05
申请人： THOMSON LICENSING S.A. , RAMASWAMY, Kumar , LITWIN, Louis, Robert , KNUTSON, Paul, Gothard , GAO, Wen , WANG, Charles, Chuanming
发明人： RAMASWAMY, Kumar , LITWIN, Louis, Robert , KNUTSON, Paul, Gothard , GAO, Wen , WANG, Charles, Chuanming
IPC分类号： H04L
CPC分类号： H04W64/00 , H04W84/12 , H04W88/06
摘要： A method and apparatus for detecting the presence of a wireless local area network (WLAN) (104) determines a position of a mobile device (110) using a position location system (114), receives a position of a WLAN (104) from a location database(112), and determines whether the mobile device (110) is within a service area (108) of the WLAN (104) in response to the position of the mobile device (110) and the position of the WLAN (104).
摘要翻译：一种用于检测无线局域网（WLAN）（104）的存在的方法和装置（104）使用位置定位系统（114）确定移动设备（110）的位置，从WLAN接收WLAN（104）的位置位置数据库（112），并且响应于移动设备（110）的位置和WLAN（104）的位置来确定移动设备（110）是否在WLAN（104）的服务区域（108）内，。

9. 发明申请

WO2010138205A1 IMPROVED FEED-FORWARD CARRIER RECOVERY SYSTEM AND METHOD 审中-公开
标题翻译：改进的进给载波恢复系统和方法
公开(公告)号：WO2010138205A1
公开(公告)日：2010-12-02
申请号：PCT/US2010/001577
申请日：2010-05-28
申请人： THOMSON LICENSING , SCHMITT, Dirk , GAO, Wen , KNUTSON, Paul Gothard
发明人： SCHMITT, Dirk , GAO, Wen , KNUTSON, Paul Gothard
IPC分类号： H04L27/00
CPC分类号： H04L27/2678 , H04H40/90 , H04L7/0062 , H04L7/042 , H04L7/10 , H04L27/0014 , H04L27/2613 , H04L27/2656 , H04L27/2679 , H04L2027/0053 , H04L2027/0067 , H04W56/005
摘要： A method of feedforward phase recovery on a data stream is described. Phase estimation base points are calculated, at a phase detector, for each block of the received data stream. A current phase, at a phase interpolator, between two phase estimation base points. Data stream delays within the phase detector are matched with delays within the phase interpolator.
摘要翻译：描述了数据流上的前馈相位恢复方法。对于接收到的数据流的每个块，在相位检测器处计算相位估计基点。在相位插值器处的两相估计基点之间的电流相位。相位检测器内的数据流延迟与相位内插器内的延迟相匹配。

10. 发明申请

WO2010138204A1 METHOD AND APPARATUS FOR ITERATIVE TIMING RECOVERY 审中-公开
标题翻译：用于迭代时序恢复的方法和装置
公开(公告)号：WO2010138204A1
公开(公告)日：2010-12-02
申请号：PCT/US2010/001576
申请日：2010-05-28
申请人： THOMSON LICENSING , SCHMITT, Dirk , KNUTSON, Paul Gothard , GAO, Wen
发明人： SCHMITT, Dirk , KNUTSON, Paul Gothard , GAO, Wen
IPC分类号： H04L7/00 , H04L25/03
CPC分类号： H04L27/2678 , H04H40/90 , H04L7/0062 , H04L7/042 , H04L7/10 , H04L27/0014 , H04L27/2613 , H04L27/2656 , H04L27/2679 , H04L2027/0053 , H04L2027/0067 , H04W56/005
摘要： Method and apparatus for iterative timing recovery for FTN signaling are provided. The iterative timing recovery method and apparatus uses a feedback timing error signal from a forward error correction block with an additional equalizer prior to a maximum a posteriori (MAP) decoder which matches the equalized FTN signal to a truncated inter-symbol interference (ISI) target. A timing error is then generated using a modified M&M timing error detector.
摘要翻译：提供了用于FTN信令的迭代定时恢复的方法和装置。迭代定时恢复方法和装置在与均衡的FTN信号与截断的符号间干扰（ISI）目标匹配的最大后验（MAP）解码器之前使用来自具有附加均衡器的前向纠错块的反馈定时误差信号。然后使用修改的M＆M定时误差检测器生成定时误差。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式