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41. 发明授权

US08369462B2 DTV receiver and method of processing signal in DTV receiver 有权
标题翻译：数字电视接收机和DTV接收机处理信号的方法
公开(公告)号：US08369462B2
公开(公告)日：2013-02-05
申请号：US13189319
申请日：2011-07-22
申请人： Kyung Won Kang , In Hwan Choi , Kook Yeon Kwak , Young Jin Hong , Sung Ryong Hong
发明人： Kyung Won Kang , In Hwan Choi , Kook Yeon Kwak , Young Jin Hong , Sung Ryong Hong
IPC分类号： H04B1/66
CPC分类号： H04L25/03114 , H03M13/2936 , H04H20/426 , H04H40/18 , H04L25/03343 , H04L2025/03783 , H04N21/235 , H04N21/23614 , H04N21/435 , H04N21/4382 , Y02D70/168
摘要： A DTV receiver includes a tuner, a demodulator, a channel equalizer, a sequence detector, and a burst controller. The tuner receives a DTV signal having main data and at least one burst of enhanced data. The demodulator demodulates the DTV signal by performing carrier and time recovery and the channel equalizer equalizes the demodulated signal. The sequence detector detects one or more known data sequences from any one of the received signal and the demodulated signal. The demodulator and the channel equalizer use the detected known data sequences when performing the carrier and timing recover and the channel-equalization, respectively. Lastly, the burst controller supplies power to the tuner, the demodulator, the channel equalizer, and the data detector only during a burst time for each burst of enhanced data for efficient power consumption.
摘要翻译： DTV接收机包括调谐器，解调器，信道均衡器，序列检测器和突发控制器。调谐器接收具有主数据和增强数据的至少一个突发的DTV信号。解调器通过执行载波和时间恢复来解调DTV信号，信道均衡器对解调信号进行均衡。序列检测器从接收信号和解调信号中的任何一个检测一个或多个已知数据序列。解调器和信道均衡器分别在执行载波和定时恢复和信道均衡时使用检测到的已知数据序列。最后，脉冲串控制器仅在突发时间内为调谐器，解调器，信道均衡器和数据检测器供电，用于每个突发的增强数据以有效地消耗功率。

42. 发明申请

US20130022155A2 ENHANCED LATTICE REDUCTION SYSTEMS AND METHODS 有权
标题翻译：增强式减速系统和方法
公开(公告)号：US20130022155A2
公开(公告)日：2013-01-24
申请号：US13424079
申请日：2012-03-19
申请人： Qi Zhou , Xiaoli Ma
发明人： Qi Zhou , Xiaoli Ma
IPC分类号： G06F17/14 , H04L27/00
CPC分类号： H04L25/0244 , H04B7/0413 , H04L25/03114 , H04L25/067
摘要： An exemplary embodiment of the present invention provides a lattice reduction method comprising obtaining a preliminary estimate of a transformation matrix, generating a covariance matrix based on the preliminary estimate of the transformation matrix, reducing diagonal elements of the covariance matrix to generate a unimodular transformation matrix, and using the unimodular transformation matrix to obtain an estimate of an input.
摘要翻译：本发明的示例性实施例提供了一种晶格简化方法，包括获得变换矩阵的初步估计，基于变换矩阵的初步估计生成协方差矩阵，减少协方差矩阵的对角元素以生成单模变换矩阵，并使用单模变换矩阵来获得输入的估计。

43. 发明授权

US08199863B2 Multiple-antenna space multiplexing system using enhancement signal detection and method thereof 有权
标题翻译：使用增强信号检测的多天线空间复用系统及其方法
公开(公告)号：US08199863B2
公开(公告)日：2012-06-12
申请号：US12527644
申请日：2008-04-11
申请人： Peng Chen , Young-Hak Kim
发明人： Peng Chen , Young-Hak Kim
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08
CPC分类号： H04L1/0631 , H04B7/0413 , H04B7/0669 , H04B7/0697 , H04L1/0656 , H04L5/0023 , H04L25/022 , H04L25/0238 , H04L25/0242 , H04L25/03006 , H04L25/03114 , H04L2025/03426
摘要： The multiple-antenna space multiplexing system using enhancement signal detection comprising: a code modulation module for coding and modulating bit information; a signal transmission module for transmitting the modulated signals; a signal reception module for receiving the signals; a signal form transform module for transforming form of a channel matrix H and the received signal vector r; a signal detection module for detecting the received signals; a signal reconstruction module for reconstructing the detection results of in the signal detection module, and obtaining a detected signal; a demodulation decoding module for demodulating and decoding the output of the signal reconstruction module, and outputting bit information. Compared with the conventional detection methods, the system performance is improved in considering the realization complexity.
摘要翻译：使用增强信号检测的多天线空间复用系统包括：用于编码和调制比特信息的码调制模块; 用于发送调制信号的信号传输模块; 用于接收信号的信号接收模块; 用于变换信道矩阵H和接收信号矢量r的信号形式变换模块; 信号检测模块，用于检测所接收的信号; 信号重建模块，用于重建信号检测模块中的检测结果，并获得检测信号; 解调解码模块，用于对信号重建模块的输出进行解调和解码，并输出比特信息。与常规检测方法相比，考虑到复杂度的提高，系统性能得到提高。

44. 发明申请

US20100104047A1 MULTIPLE-ANTENNA SPACE MULTIPLEXING SYSTEM USING ENHANCEMENT SIGNAL DETECTION 有权
标题翻译：使用增强信号检测的多天线空间多路复用系统
公开(公告)号：US20100104047A1
公开(公告)日：2010-04-29
申请号：US12527644
申请日：2008-04-11
申请人： Peng Chen , Young-Hak Kim
发明人： Peng Chen , Young-Hak Kim
IPC分类号： H04L27/06
CPC分类号： H04L1/0631 , H04B7/0413 , H04B7/0669 , H04B7/0697 , H04L1/0656 , H04L5/0023 , H04L25/022 , H04L25/0238 , H04L25/0242 , H04L25/03006 , H04L25/03114 , H04L2025/03426
摘要： The multiple-antenna space multiplexing system using enhancement signal detection comprising: a code modulation module for coding and modulating bit information; a signal transmission module for transmitting the modulated signals; a signal reception module for receiving the signals; a signal form transform module for transforming form of a channel matrix H and the received signal vector r; a signal detection module for detecting the received signals; a signal reconstruction module for reconstructing the detection results of in the signal detection module, and obtaining a detected signal; a demodulation decoding module for demodulating and decoding the output of the signal reconstruction module, and outputting bit information. Compared with the conventional detection methods, the system performance is improved in considering the realization complexity.
摘要翻译：使用增强信号检测的多天线空间复用系统包括：用于编码和调制比特信息的码调制模块; 用于发送调制信号的信号传输模块; 用于接收信号的信号接收模块; 信号形式变换模块，用于变换信道矩阵H和接收信号矢量r的形式; 信号检测模块，用于检测所接收的信号; 信号重建模块，用于重建信号检测模块中的检测结果，并获得检测信号; 解调解码模块，用于对信号重建模块的输出进行解调和解码，并输出比特信息。与常规检测方法相比，考虑到复杂度的提高，系统性能得到提高。

45. 发明申请

US20080046037A1 Wireless Communication Network for an Implantable Medical Device System 审中-公开
标题翻译：无线通信网络，用于植入式医疗设备系统
公开(公告)号：US20080046037A1
公开(公告)日：2008-02-21
申请号：US11739283
申请日：2007-04-24
申请人： Gregory J. Haubrich , Sarah A. Audet , Gerard J. Hill , Randall L. Knoll , Javaid Masoud
发明人： Gregory J. Haubrich , Sarah A. Audet , Gerard J. Hill , Randall L. Knoll , Javaid Masoud
IPC分类号： A61N1/02
CPC分类号： H04B13/005 , A61B5/0028 , A61B5/0031 , A61N1/08 , A61N1/37211 , A61N1/37217 , G06F19/3418 , H04L25/03114 , H04L2025/03375 , H04L2025/0377
摘要： An implantable medical device system includes, in one embodiment, a first device including a first communication module coupled to a wireless communication network for transmitting data and a second device adapted for implantation in a patient's body including a second communication module coupled to the wireless communication network and adapted to receive data from the first device. The second device may include an equalizer coupled to the second communication module for reducing signal distortion of the data received wirelessly through the patient's body. The second device may convert a received signal to an acoustic or radio-frequency output signal.
摘要翻译：在一个实施例中，可植入医疗装置系统包括第一装置，其包括耦合到用于传输数据的无线通信网络的第一通信模块和适于植入患者体内的第二装置，其包括耦合到无线通信网络的第二通信模块并适于从第一设备接收数据。第二设备可以包括耦合到第二通信模块的均衡器，用于减少通过患者身体无线地接收的数据的信号失真。第二装置可以将接收的信号转换成声或射频输出信号。

46. 发明授权

US07308032B2 Oversampling D/A converter and method for shaping nonlinear intersymbol interference in an oversampling D/A converter 失效
标题翻译：过采样D / A转换器和用于在过采样D / A转换器中整形非线性符号间干扰的方法
公开(公告)号：US07308032B2
公开(公告)日：2007-12-11
申请号：US10749575
申请日：2003-12-31
申请人： Peter Capofreddi
发明人： Peter Capofreddi
IPC分类号： H04B14/06
CPC分类号： H04L25/03828 , H04L25/03114
摘要： A method and a device for spectrally shaping nonlinear intersymbol interference (NLISI) in an oversampling digital-to-analog converter are disclosed. At least one higher-order shaper circuit is provided, so as to shape NLISI, causing energy associated with NLISI to fall outside a signal band. The signal-to-noise ratio achieved is better than signal-to-noise rations obtained in prior art NLISI reducing methods and devices.
摘要翻译：公开了一种用于在过采样数模转换器中频谱整形非线性码间干扰（NLISI）的方法和装置。提供至少一个高阶成形器电路，以便形成NLISI，使得与NLISI相关联的能量落在信号频带之外。实现的信噪比优于现有技术的NLISI还原方法和装置中获得的信噪比。

47. 发明授权

US07110349B2 Adaptive communications methods for multiple user packet radio wireless networks 有权
公开(公告)号：US07110349B2
公开(公告)日：2006-09-19
申请号：US10092937
申请日：2002-03-06
申请人： Dale A. Branlund , Phillip L. Kelly , Matthew C. Bromberg
发明人： Dale A. Branlund , Phillip L. Kelly , Matthew C. Bromberg
IPC分类号： H04J11/00
CPC分类号： H04B1/7103 , H04B1/71052 , H04B2201/709709 , H04L25/03114 , H04L2025/03414 , H04W72/0453 , H04W88/085
摘要： An exemplary wireless communication network that includes a base that communicates with remote units located in a cell of the network. A base concatenates information symbols with a preamble corresponding to a destination remote unit. One or more remote units communicating with a base each concatenates information symbols with a preamble corresponding to that remote unit. An adaptive receiver system for a base unit rapidly adapts optimal despreading weights for reproducing information symbols transmitted from multiple remote units. A transmitter system for a base unit concatenates information symbols with a preamble associated with a remote unit in the cell. An adaptive receiver system for a remote unit in a communication network rapidly adapts optimal weights for reproducing a signal transmitted to it by a specific base unit in the network. A transmitter system for a remote unit in a cell of a communication network which concatenates information symbols with preamble associated with the remote unit. A base initiates communication with a desired remote unit by transmitting an initiation codeword in a selected entry slot. One or more remote units each initiates communication with a bse by transmitting an initiation codeword associated with the remote unit in a selected entry slot. A remote unit synchronizes in time and frequency to the base using a sequence of synchronization signals transmitted by the base in a number of entry slots.

48. 发明授权

US06947480B2 Networking 失效
标题翻译：联网
公开(公告)号：US06947480B2
公开(公告)日：2005-09-20
申请号：US10030041
申请日：2001-04-30
申请人： Martin Warwick Beale , Timothy Alan Heath Wilkinson , Ian Robert Johnson , Robert John Castle
发明人： Martin Warwick Beale , Timothy Alan Heath Wilkinson , Ian Robert Johnson , Robert John Castle
IPC分类号： H04L27/01 , H04B3/10 , H04L12/28 , H04L25/03 , H03H7/30
CPC分类号： H04L25/03114 , H04L2025/0342 , H04L2025/0377 , H04L2025/03796
摘要： A network adapter capable of receiving data from a network, said adapter arranged to receive data at at least a lowest and a highest rate; said adapter comprising: sampling means arranged to sample said data; an equalizer arranged to receive, and equalize, said data samples, and said equalizer capable of being trained to equalize data, at at least, each of said lowest and highest data rates; and training means capable of training said equalizer to equalize data; wherein; said adapter is initially arranged to train said equalizer to receive data at said lowest data rate allowing data to be decoded and if upon decoding said adapter determines that said equalizer has been trained to equalise data at the incorrect rate to retrain said equalize to equalize data at the correct rate.
摘要翻译：一种能够从网络接收数据的网络适配器，所述适配器布置成以至少最低和最高速率接收数据; 所述适配器包括：被配置为对所述数据进行采样的采样装置; 布置成接收和均衡所述数据样本的均衡器，并且所述均衡器能够被训练成至少在所述最低和最高数据速率中的每一个上均衡数据; 以及能够训练所述均衡器以均衡数据的训练装置; 其中; 所述适配器最初被布置成训练所述均衡器以接收以所述最低数据速率的数据以允许数据被解码，并且如果解码所述适配器确定所述均衡器已经被训练成以不正确的速率对数据进行均衡，以重新训练所述均衡以均衡数据正确率。

49. 发明申请

US20030152174A1 Space-cover-time equalizer 审中-公开
标题翻译：空间覆盖时间均衡器
公开(公告)号：US20030152174A1
公开(公告)日：2003-08-14
申请号：US10339912
申请日：2003-01-10
发明人： Joseph P. Burke
IPC分类号： H04B001/10
CPC分类号： H04J13/0048 , H04B1/7097 , H04B7/0491 , H04B7/0845 , H04B7/0854 , H04B7/0891 , H04B2201/70702 , H04J13/18 , H04L25/03114 , H04L2025/03375 , H04L2025/03605
摘要： Techniques for efficient allocation of channelization codes are disclosed. In one aspect, a dedicated data channel is partitioned into a primary channel and a secondary channel. The rate of the primary channel is a relatively low fixed rate. The rate of the secondary channel varies over time in accordance with the rate of the dedicated channel data. In another aspect, a channelization code indicator is transmitted in the primary channel to identify the secondary channel. In yet another aspect, more than one secondary channel may be deployed. Various other aspects are also presented. These aspects have the benefit of efficient code resource allocation, resulting in increased support for users/and or channels, as well as increased system capacity.
摘要翻译：公开了用于有效分配信道化码的技术。在一个方面，专用数据信道被划分为主信道和次信道。主要渠道的比率是相对较低的固定利率。次级通道的速率根据专用通道数据的速率随时间而变化。在另一方面，在主信道中发送信道化码指示符以识别次信道。在另一方面，可以部署多于一个的次级信道。还提出了各种其他方面。这些方面有利于高效的代码资源分配，从而增加对用户/或渠道的支持，以及增加的系统容量。

50. 发明授权

US06512789B1 Partial equalization for digital communication systems 失效
标题翻译：数字通信系统的部分均衡
公开(公告)号：US06512789B1
公开(公告)日：2003-01-28
申请号：US09304015
申请日：1999-04-30
申请人： Khashayar Mirfakhraei
发明人： Khashayar Mirfakhraei
IPC分类号： H03H730
CPC分类号： H04L25/03114 , H04L2025/03414 , H04L2025/03445 , H04L2025/03522
摘要： A training process for a filter such as included in a time domain equalizer for an xDSL transceiver includes a novel spectral estimation process for a channel. The spectral estimation determines the taps of the filter using an overdetermined set of equations based on the auto-correlation estimates of the received signal. A weighting function such as a sigmoidal function is applied to the AC coefficients to change the relative weighting of the AC coefficients. Upon solving for the taps of the filter using a fitting criterion such as the least square error criterion, the filter significantly reduces the impulse response of the channel.
摘要翻译：用于xDSL收发机的时域均衡器中包括的滤波器的训练过程包括用于信道的新的频谱估计过程。频谱估计使用基于接收信号的自相关估计的超定公式集来确定滤波器的抽头。对AC系数应用诸如S形函数的加权函数来改变AC系数的相对权重。在使用诸如最小二乘误差准则的拟合标准求解滤波器的抽头时，滤波器显着地减小了信道的脉冲响应。

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