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61. 发明授权

US09326262B2 Frequency correction in a multi-carrier communication system 有权
公开(公告)号：US09326262B2
公开(公告)日：2016-04-26
申请号：US14017245
申请日：2013-09-03
申请人： Intel Corporation
发明人： Xiaodong Li , Titus Lo
IPC分类号： H04W56/00 , H04B7/015 , H04B17/24
CPC分类号： H04W56/0035 , H04B7/015 , H04B17/24 , H04L27/2602
摘要： Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station.

62. 发明授权

US09282564B2 Simultaneous transmit and receive (STR) structures immune to phase and amplitude imbalances 有权
标题翻译：同步发送和接收（STR）结构免受相位和幅度不平衡的影响
公开(公告)号：US09282564B2
公开(公告)日：2016-03-08
申请号：US14128278
申请日：2013-09-18
申请人： Intel Corporation
发明人： Yang-Seok Choi
IPC分类号： H04W4/00 , H04W72/08 , H04W56/00 , H04W48/08 , H04L29/08 , H04B7/015 , H04L5/14 , H04L5/00 , H04W72/04 , H04W76/02 , H04W76/04
CPC分类号： H04W72/085 , H04B3/232 , H04B7/015 , H04L5/0048 , H04L5/14 , H04L25/00 , H04L25/03866 , H04L67/1068 , H04W8/005 , H04W48/08 , H04W56/00 , H04W72/0413 , H04W72/082 , H04W76/14 , H04W76/27
摘要： An echo-canceling unit for a simultaneous transmit and receive (STR) system includes at least three phase shifters instead of just two phase shifters in order to provide immunity to phase and/or amplitude imbalances. Each respective phase shifter is coupled to a transmit signal to generate an output signal comprising a selected phase shift with respect to the transmit signal. A weight calculation unit generates a corresponding amplitude-weight signal for the output signal of the phase shifter. A variable attenuator attenuates the output signal of each respective phase shifter based on the corresponding amplitude-weight signal to form an echo-cancelation signal component corresponding to the phase shifter. A first summer then sums the respective echo-cancelation signal components into a received signal containing an echo signal to form an echo-canceled signal. In some embodiments, an information handling system includes a receiver and a transmitter coupled to the echo-canceling unit.
摘要翻译：用于同时发送和接收（STR）系统的回波消除单元包括至少三个移相器，而不仅仅是两个移相器，以便提供对相位和/或振幅不平衡的抗扰性。每个相应的移相器耦合到发射信号以产生包括相对于发射信号的选定相移的输出信号。权重计算单元生成用于移相器的输出信号的对应的幅度权重信号。可变衰减器基于对应的幅度权重信号衰减每个相移器的输出信号，以形成对应于移相器的回波消除信号分量。然后，第一个夏天将相应的回波消除信号分量合并成包含回波信号的接收信号，以形成回波消除信号。在一些实施例中，信息处理系统包括接收器和耦合到回波消除单元的发射器。

63. 发明申请

US20150236798A1 Methods for Increasing RF Throughput Via Usage of Tunable Filters 审中-公开
标题翻译：通过使用可调谐滤波器增加射频吞吐量的方法
公开(公告)号：US20150236798A1
公开(公告)日：2015-08-20
申请号：US14181478
申请日：2014-02-14
申请人： PEREGRINE SEMICONDUCTOR CORPORATION
发明人： Dan William Nobbe
IPC分类号： H04B15/00 , H04B7/02 , H04B7/015
CPC分类号： H03F1/301 , H03F1/30 , H03F3/04 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/213 , H03F2200/18 , H03F2200/451 , H03F2200/456 , H03F2200/471 , H03F2200/555 , H04B1/18 , H04B1/44 , H04B1/525 , H04B7/015 , H04B7/02 , H04B15/005 , H04B17/12 , H04L27/20
摘要： Methods and devices are described for increasing RF throughput in a multiple RF paths RF transmit/receive system with a plurality RF transmit/receive systems. In one case a tunable notch filter is used to reduce channel interference between the plurality of RF transmit/receive systems.
摘要翻译：描述了用于在具有多个RF发射/接收系统的多个RF路径RF发射/接收系统中增加RF吞吐量的方法和装置。在一种情况下，可调谐陷波滤波器用于减少多个RF发射/接收系统之间的信道干扰。

64. 发明申请

US20150236748A1 Devices and Methods for Duplexer Loss Reduction 审中-公开
标题翻译：双工器减少损耗的设备和方法
公开(公告)号：US20150236748A1
公开(公告)日：2015-08-20
申请号：US14181489
申请日：2014-02-14
申请人： PEREGRINE SEMICONDUCTOR CORPORATION
发明人： Dan William Nobbe
IPC分类号： H04B1/44
CPC分类号： H03F1/301 , H03F1/30 , H03F3/04 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/213 , H03F2200/18 , H03F2200/451 , H03F2200/456 , H03F2200/471 , H03F2200/555 , H04B1/18 , H04B1/44 , H04B1/525 , H04B7/015 , H04B7/02 , H04B15/005 , H04B17/12 , H04L27/20
摘要： Methods and devices are described for reducing transmit RF signal loss in a bi-directional RF transmit/receive system with a duplexer circuit. In one case a filter in a transmit path is used such as to reduce amplified noise in a receive frequency band.
摘要翻译：描述了用双工器电路在双向射频发射/接收系统中降低发射RF信号损耗的方法和装置。在一种情况下，使用发送路径中的滤波器来减少接收频带中的放大噪声。

65. 发明授权

US08958497B2 Simultaneous transmission of clock and bidirectional data over a communication channel 有权
标题翻译：通过通信通道同时传输时钟和双向数据
公开(公告)号：US08958497B2
公开(公告)日：2015-02-17
申请号：US13834927
申请日：2013-03-15
申请人： Silicon Image, Inc.
发明人： Inyeol Lee , Baegin Sung , Hanwoong Sohn , Shinje Tahk , Sun Woo Baek , Chandlee B. Harrell
IPC分类号： H04B15/00 , H04B7/015 , H04L25/49 , H04B3/23
CPC分类号： H04L7/0087 , H04B3/23 , H04B7/015 , H04L7/0278 , H04L7/033 , H04L7/042 , H04L25/4904 , H04L25/493
摘要： Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
摘要翻译：本发明的实施例一般涉及通过通信信道同时传输时钟和双向数据。发射装置的实施例包括调制器，用于产生包括时钟信号和数据信号的调制信号，时钟信号由调制信号的第一信号边沿调制，数据信号由第二信号的位置调制调制信号的边缘; 在通信信道上驱动调制信号的驱动器; 回波消除器，用于减去通信信道上的反射信号; 以及数据恢复模块，用于恢复在通信信道上接收到的信号，所述接收信号通过归零（RZ）编码进行编码，该信号与在通信信道上驱动调制信号同时接收。

66. 发明申请

US20150009867A1 SIMULTANEOUS TRANSMIT AND RECEIVE (STR) STRUCTURES IMMUNE TO PHASE AND AMPLITUDE IMBALANCES 有权
标题翻译：同时发送和接收（STR）结构无法相位和幅度不平衡
公开(公告)号：US20150009867A1
公开(公告)日：2015-01-08
申请号：US14128278
申请日：2013-09-18
申请人： Yang-Seok Choi
发明人： Yang-Seok Choi
IPC分类号： H04B7/015 , H04L5/14
CPC分类号： H04W72/085 , H04B3/232 , H04B7/015 , H04L5/0048 , H04L5/14 , H04L25/00 , H04L25/03866 , H04L67/1068 , H04W8/005 , H04W48/08 , H04W56/00 , H04W72/0413 , H04W72/082 , H04W76/14 , H04W76/27
摘要： An echo-canceling unit for a simultaneous transmit and receive (STR) system includes at least three phase shifters in which each respective phase shifter is coupled to a transmit signal to generate an output signal comprising a selected phase shift with respect to the transmit signal. A weight calculation unit generates a corresponding amplitude-weight signal for the output signal of the phase shifter. A variable attenuator attenuates the output signal of each respective phase shifter based on the corresponding amplitude-weight signal to form an echo-cancelation signal component corresponding to the phase shifter. A first summer then sums the respective echo-cancelation signal components into a received signal containing an echo signal to form an echo-canceled signal.
摘要翻译：用于同时发送和接收（STR）系统的回波消除单元包括至少三个移相器，其中每个相应的移相器耦合到发射信号以产生包括相对于发射信号的选定相移的输出信号。权重计算单元生成用于移相器的输出信号的对应的幅度权重信号。可变衰减器基于对应的幅度权重信号衰减每个相移器的输出信号，以形成对应于移相器的回波消除信号分量。然后，第一个夏天将相应的回波消除信号分量合并成包含回波信号的接收信号，以形成回波消除信号。

67. 发明申请

US20140376416A1 TECHNIQUES TO SIMULTANEOUSLY TRANSMIT AND RECEIVE OVER THE SAME RADIOFREQUENCY CARRIER 有权
标题翻译：同时发射和接收同一无线电载波的技术
公开(公告)号：US20140376416A1
公开(公告)日：2014-12-25
申请号：US13976423
申请日：2011-12-20
申请人： Yang-Seok Choi
发明人： Yang-Seok Choi
IPC分类号： H04B7/015 , H04L5/14
CPC分类号： H04B7/015 , H04B1/525 , H04B3/23 , H04L5/14
摘要： An apparatus may include an antenna and a transceiver coupled to the antenna, the transceiver including a receiver operative to receive a radio-frequency (RF) signal and a transmitter operative to transmit a RF signal. The apparatus may also include an RF echo cancellation module coupled to the receiver and the transmitter, the RF echo cancellation module operative to generate an analog echo cancellation signal for the received RF signal based on a delayed version of the transmit RF signal. Other embodiments are disclosed and claimed.
摘要翻译：一种装置可以包括耦合到天线的天线和收发器，所述收发器包括可接收射频（RF）信号的接收器和用于发射RF信号的发射器。该装置还可以包括耦合到接收器和发射器的RF回波消除模块，RF回波消除模块可用于基于发射RF信号的延迟版本为所接收的RF信号生成模拟回波消除信号。公开和要求保护其他实施例。

68. 发明申请

US20040248519A1 Data transmission method, system and network element 审中-公开
标题翻译：数据传输方式，系统和网元
公开(公告)号：US20040248519A1
公开(公告)日：2004-12-09
申请号：US10620764
申请日：2003-07-17
发明人： Kari Niemela
IPC分类号： H04Q007/34 , H04Q007/20
CPC分类号： H04B7/015 , H04B7/01
摘要： A data transmission system compensates Doppler shift in a telecommunication system in which system at least one user terminal is moving in relation to a network element. The system includes means for measuring a received uplink signal, and means for estimating the amount of Doppler frequency compensation for at least one downlink signal related to the user terminal on the basis of the measured received uplink signal. Means are provided for compensating the Doppler shift for at least one downlink signal related to the user terminal by shifting the frequency of the signal according to the estimated amount of Doppler frequency compensation.
摘要翻译：数据传输系统补偿在至少一个用户终端相对于网络元件移动的系统中的电信系统中的多普勒频移。该系统包括用于测量接收到的上行链路信号的装置，以及用于基于测量的接收到的上行链路信号估计与用户终端相关的至少一个下行链路信号的多普勒频率补偿量的装置。提供了用于通过根据估计的多普勒频率补偿量移位信号的频率来补偿与用户终端相关的至少一个下行链路信号的多普勒频移的装置。

69. 发明授权

US5740256A Adaptive noise cancelling arrangement, a noise reduction system and a transceiver 失效
标题翻译：自适应噪声消除装置，降噪系统和收发器
公开(公告)号：US5740256A
公开(公告)日：1998-04-14
申请号：US762682
申请日：1996-12-11
申请人： Paulo M. Castello Da Costa , Cornelis P. Janse , Patrick A. A. Timmermans
发明人： Paulo M. Castello Da Costa , Cornelis P. Janse , Patrick A. A. Timmermans
IPC分类号： G10K11/178 , H04B7/015 , H04B15/00 , H04R3/00 , H04R29/00
CPC分类号： H04B7/015 , H04R3/005 , H04R2430/20 , H04R29/005
摘要： A known cross-coupled adaptive noise cancelling arrangement uses an adaptive noise filter and an adaptive cross-talk filter in a feedback loop for cancelling correlated noise at a primary signal input and reference input. This known cross-coupled ANC does not operate satisfactorily, particularly not for acoustic noise cancellation. This leads to reverberant-like sound signals, in particular in a typical office room with remote noise sources. A different configuration of a cross-coupled adaptive noise cancelling arrangement gives rise to a better performance. The adaptive cross-talk filter is now split into a pre-filter section and an adaptive filter section, the sections using different input signals. The pre-filter section estimates the desired signal from the input signal of the noise cancelling arrangement, and the adaptive filter section has its input coupled to the output of the noise cancelling arrangement, a delay section being provided between the input and the output of the noise cancelling arrangement. In an embodiment, the pre-filter section and the adaptive filter section are separate filters.
摘要翻译：已知的交叉耦合自适应噪声消除装置在反馈环路中使用自适应噪声滤波器和自适应串扰滤波器来消除主信号输入和参考输入处的相关噪声。这种已知的交叉耦合ANC不能令人满意地运行，特别是不用于声学噪声消除。这导致类似混响的声音信号，特别是在具有远程噪声源的典型办公室中。交叉耦合自适应噪声消除装置的不同配置产生更好的性能。自适应串扰滤波器现在分为预滤波器部分和自适应滤波器部分，这些部分使用不同的输入信号。预滤波器部分从噪声消除装置的输入信号估计期望的信号，并且自适应滤波器部分的输入耦合到噪声消除装置的输出，延迟部分设置在输入和输出之间降噪布置。在一个实施例中，预滤波器部分和自适应滤波器部分是分离的滤波器。

70. 发明授权

US5295136A Method of performing convergence in a, least mean square, adaptive filter, echo canceller 失效
标题翻译：在最小均方，自适应滤波器，回波消除器中执行收敛的方法
公开(公告)号：US5295136A
公开(公告)日：1994-03-15
申请号：US867555
申请日：1992-04-13
申请人： James P. Ashley , Quoc Nguyen
发明人： James P. Ashley , Quoc Nguyen
IPC分类号： H04B3/23 , H04B7/015
CPC分类号： H04B7/015
摘要： A method is described of decreasing convergence time in an adaptive echo canceller. The method includes the step of locating a primary echo within a filter vector based upon relative tap values within the filter vector. The filter vector is then narrowed, based upon the located taps. An estimated error is determined based, in part, upon the narrowed filter vector. An updated filter vector is produced based, in part, upon the estimated error.
摘要翻译：描述了在自适应回波消除器中减少收敛时间的方法。该方法包括基于滤波器向量内的相对抽头值将滤波器向量中的主回波定位的步骤。基于定位的抽头，滤波器向量变窄。部分地基于变窄的滤波器向量来确定估计的误差。部分地基于估计的误差产生更新的滤波器向量。

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