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31. 发明授权

US07463704B1 Multi-chain signal detection and gain control for automatic gain control systems 有权
标题翻译：用于自动增益控制系统的多链信号检测和增益控制
公开(公告)号：US07463704B1
公开(公告)日：2008-12-09
申请号：US10884787
申请日：2004-07-01
申请人： Ardavan Maleki Tehrani , Xiaoru Zhang , Paul J. Husted , Jeffrey M. Gilbert
发明人： Ardavan Maleki Tehrani , Xiaoru Zhang , Paul J. Husted , Jeffrey M. Gilbert
IPC分类号： H04L27/08
CPC分类号： H03G3/3068 , H03G3/3078
摘要： A wireless local area network (WLAN) system can have multiple antennas to improve signal detection and decoding. A WLAN receiver in such a system includes multiple amplifiers that can appropriately size an incoming signal and an automatic gain control unit to process the received incoming signals. The amplifiers of a chain of the WLAN receiver, i.e. an antenna and associated receiver components, can be adjusted with computed gains. To optimize the wireless system detection and decoding, the automatic gain control unit can advantageously compute these gains for each amplifier in the WLAN receiver.
摘要翻译：无线局域网（WLAN）系统可以具有多个天线来改善信号检测和解码。这种系统中的WLAN接收机包括可以适当地调整输入信号的大小的放大器和自动增益控制单元来处理接收到的输入信号。可以利用计算的增益来调整WLAN接收器链的放大器，即天线和相关联的接收器组件。为了优化无线系统检测和解码，自动增益控制单元可以有利地计算WLAN接收机中每个放大器的这些增益。

32. 发明申请

US20080130741A1 Wireless HD AV packet format 有权
标题翻译：无线高清AV数据包格式
公开(公告)号：US20080130741A1
公开(公告)日：2008-06-05
申请号：US11982209
申请日：2007-10-31
申请人： Ching-Hsiu Chiang , Jeffrey M. Gilbert , Victor Ramamoorthy
发明人： Ching-Hsiu Chiang , Jeffrey M. Gilbert , Victor Ramamoorthy
IPC分类号： H04N11/04
CPC分类号： H04L12/6418 , G09G5/006 , G09G2370/045 , G09G2370/10 , G09G2370/16 , H04L65/607 , H04L2012/6448
摘要： An audio/video (AV) processor is coupled to a media access controller (MAC) to generate a composite packet having an optimized format for carrying audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.
摘要翻译：音频/视频（AV）处理器被耦合到媒体接入控制器（MAC）以产生具有优化格式的复合分组，所述优化格式用于承载音频，视频和数据业务，其中所述组合分组的报头中的字段指定视频专用信息。物理设备接口（PHY）耦合到MAC。 PHY在数字信号和调制的模拟信号之间进行编码和解码。 PHY包括高速物理层电路（HRP）和低速物理层电路（LRP）。射频（RF）发射机耦合到PHY以传输数据。

33. 发明授权

US08532598B1 Multi-channel RX/TX calibration and local oscillator mismatch mitigation 失效
标题翻译：多通道RX / TX校准和本地振荡器失配减轻
公开(公告)号：US08532598B1
公开(公告)日：2013-09-10
申请号：US12942659
申请日：2010-11-09
申请人： Donald Breslin , Jeffrey M. Gilbert
发明人： Donald Breslin , Jeffrey M. Gilbert
IPC分类号： H04B15/00 , H04B17/00
CPC分类号： H01Q21/29 , H04B17/11
摘要： A method and system of optimizing transmit beam forming in a multiple radio wireless system is provided. A stimulus signal can be provided to an analog receive input of a device under test (DUT), wherein the DUT includes multiple radios. A receive phase and amplitude can be measured at baseband using the stimulus signal for each radio. At this point, a receive weight and its conjugate can be determined using the receive phases and amplitudes. A calibration vector and its conjugate can also be determined, wherein a product of the receive weight conjugate and the calibration vector conjugate generate a transmit weight. This transmit weight can be applied to transmit signals during the transmit beam forming using the multiple radios.
摘要翻译：提供了一种在多无线电无线系统中优化发射波束形成的方法和系统。激励信号可以被提供给待测器件（DUT）的模拟接收输入，其中DUT包括多个无线电。可以使用每个无线电的激励信号在基带处测量接收相位和幅度。在这一点上，可以使用接收相位和振幅来确定接收权重及其共轭。还可以确定校准向量及其共轭，其中接收权重共轭和校准向量共轭的乘积产生传输权重。该发送权重可以应用于在使用多个无线电的发射波束形成期间发射信号。

34. 发明授权

US08279784B2 Wireless HD AV packet format 有权
标题翻译：无线高清AV数据包格式
公开(公告)号：US08279784B2
公开(公告)日：2012-10-02
申请号：US11982209
申请日：2007-10-31
申请人： Ching-Hsiu Chiang , Jeffrey M. Gilbert , Victor Ramamoorthy
发明人： Ching-Hsiu Chiang , Jeffrey M. Gilbert , Victor Ramamoorthy
IPC分类号： H04N21/2368
CPC分类号： H04L12/6418 , G09G5/006 , G09G2370/045 , G09G2370/10 , G09G2370/16 , H04L65/607 , H04L2012/6448
摘要： An audio/video (AV) processor is coupled to a media access controller (MAC) to generate a composite packet having an optimized format for carrying audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.
摘要翻译：音频/视频（AV）处理器被耦合到媒体接入控制器（MAC）以产生具有优化格式的复合分组，所述优化格式用于承载音频，视频和数据业务，其中所述组合分组的报头中的字段指定视频专用信息。物理设备接口（PHY）耦合到MAC。 PHY在数字信号和调制的模拟信号之间进行编码和解码。 PHY包括高速物理层电路（HRP）和低速物理层电路（LRP）。射频（RF）发射机耦合到PHY以传输数据。

35. 发明授权

US08170617B2 Extensions to adaptive beam-steering method 有权
标题翻译：自适应光束转向方法的扩展
公开(公告)号：US08170617B2
公开(公告)日：2012-05-01
申请号：US12055160
申请日：2008-03-25
申请人： Karim Nassiri-Toussi , Jeffrey M. Gilbert
发明人： Karim Nassiri-Toussi , Jeffrey M. Gilbert
IPC分类号： H04M1/00
CPC分类号： H04W52/04 , H04B7/0408 , H04B7/0617 , H04B7/0634 , H04B7/065 , H04B7/0848 , H04L25/0204 , H04L25/0224 , H04L27/2613
摘要： A radio frequency (RF) transmitter is coupled to and controlled by a processor to transmit data. A physical layer circuit is coupled to the RF transmitter to encode and decode between a digital signal and a modulated analog signal. The physical layer circuit comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). In a first embodiment, the LRP circuit generates a LRP packet comprising an LRP transmit power control feedback. In a second embodiment, the LRP and HRP circuit generate a packet comprising a beam-forming phase and magnitude feedback information. In a third embodiment, the LRP and HRP circuit supports up to 64 independent transmit antenna elements.
摘要翻译：射频（RF）发射机被耦合到处理器并由其控制以传输数据。物理层电路耦合到RF发射器以在数字信号和调制的模拟信号之间进行编码和解码。物理层电路包括高速物理层电路（HRP）和低速率物理层电路（LRP）。在第一实施例中，LRP电路生成包括LRP发射功率控制反馈的LRP分组。在第二实施例中，LRP和HRP电路产生包括波束形成阶段和幅度反馈信息的分组。在第三实施例中，LRP和HRP电路支持多达64个独立的发射天线元件。

36. 发明申请

US20120039377A1 Multiple-Input Multiple-Output System And Method 有权
标题翻译：多输入多输出系统及方法
公开(公告)号：US20120039377A1
公开(公告)日：2012-02-16
申请号：US13284803
申请日：2011-10-28
申请人： Qinfang Sun , Won-Joon Choi , Jeffrey M. Gilbert , Ardavan Maleki Tehrani
发明人： Qinfang Sun , Won-Joon Choi , Jeffrey M. Gilbert , Ardavan Maleki Tehrani
IPC分类号： H04L27/00 , H04B17/00 , H04L27/06 , H04L1/06 , H04L27/04 , H04L7/027
CPC分类号： H04B7/0421 , H04B7/0413 , H04B7/0613 , H04B7/0684 , H04L1/0041 , H04L1/0054 , H04L1/0061 , H04L1/06 , H04L1/0656 , H04L1/1819 , H04L1/1829 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/0014 , H04L2025/03426
摘要： A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may “stomp” on a MIMO packet by transmitting before the transmission of the MIMO packet is complete. Therefore, MIMO systems and methods are provided herein to allow legacy devices to decode the length of a MIMO packet and to restrain from transmitting during that period. These MIMO systems and methods are optimized for efficient transmission of MIMO packets.
摘要翻译：多输入多输出（MIMO）系统可以同时在多个天线上进行发射并同时在多个天线上进行接收。不幸的是，由于遗留802.11a / g设备不能解码多个数据流，所以这样的传统设备可能在完成MIMO分组的传输之前通过发送来“踩踏”MIMO分组。因此，本文提供MIMO系统和方法，以允许传统设备对MIMO分组的长度进行解码并且在该时间段内抑制发射。这些MIMO系统和方法被优化用于MIMO分组的有效传输。

37. 发明授权

US07982669B2 Adaptive beam-steering methods to maximize wireless link budget and reduce delay-spread using multiple transmit and receive antennas 有权
标题翻译：自适应波束转向方法，以最大化无线链路预算并减少使用多个发射和接收天线的延迟扩展
公开(公告)号：US07982669B2
公开(公告)日：2011-07-19
申请号：US12748276
申请日：2010-03-26
申请人： Karim Nassiri-Toussi , Jeffrey M. Gilbert , Chuen-Shen Shung , Dmitry M. Cherniavsky
发明人： Karim Nassiri-Toussi , Jeffrey M. Gilbert , Chuen-Shen Shung , Dmitry M. Cherniavsky
IPC分类号： H01Q3/00
CPC分类号： H04B7/0851 , H04B7/0617 , H04B7/0684
摘要： A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.
摘要翻译：公开了一种用于自适应光束转向的方法和装置。在一个实施例中，该方法包括使用多个发射和接收天线执行自适应波束导向，包括迭代地执行一对训练序列，其中所述训练序列对包括估计发射机天线阵列权重向量和接收机天线阵列权重向量。

38. 发明申请

US20100111212A1 Decision Feedback Channel Estimation And Pilot Tracking for OFDM Systems 有权
标题翻译： OFDM系统的决策反馈信道估计和导频跟踪
公开(公告)号：US20100111212A1
公开(公告)日：2010-05-06
申请号：US12688733
申请日：2010-01-15
申请人： Qinfang Sun , Won-Joon Choi , Jeffrey M. Gilbert , Ning Zhang , Yi-Hsiu Wang , Tao-Fei Samuel Ng
发明人： Qinfang Sun , Won-Joon Choi , Jeffrey M. Gilbert , Ning Zhang , Yi-Hsiu Wang , Tao-Fei Samuel Ng
IPC分类号： H04L27/28 , H04L27/00
CPC分类号： H04L25/022 , H04L25/0236 , H04L27/2647 , H04L2025/03522
摘要： Current OFDM systems use a limited number of symbols and/or sub-channels to provide approximations for channel estimations and pilot tracking, i.e. phase estimations. For example, two training symbols in the preamble of a data packet are used to provide channel estimation. Four of the fifty-four sub-channels are reserved for providing phase estimation. However, noise and other imperfections can cause errors in both of these estimations, thereby degrading system performance. Advantageously, decision feedback mechanisms can be provided to significantly improve channel estimation and pilot tracking in OFDM systems. The decision feedback mechanisms can use data symbols in the data packet to improve channel estimation as well as data sub-channels to improve pilot tracking.
摘要翻译：当前OFDM系统使用有限数量的符号和/或子信道来提供用于信道估计和导频跟踪（即相位估计）的近似。例如，使用数据分组的前导码中的两个训练符号来提供信道估计。五十四个子通道中的四个保留用于提供相位估计。然而，噪声和其他缺陷可能会导致这两种估计中的错误，从而降低系统性能。有利地，可以提供决策反馈机制以显着地改善OFDM系统中的信道估计和导频跟踪。决策反馈机制可以使用数据分组中的数据符号来改进信道估计以及数据子信道，以改进导频跟踪。

39. 发明授权

US07710319B2 Adaptive beam-steering methods to maximize wireless link budget and reduce delay-spread using multiple transmit and receive antennas 有权
标题翻译：自适应波束转向方法，以最大化无线链路预算并减少使用多个发射和接收天线的延迟扩展
公开(公告)号：US07710319B2
公开(公告)日：2010-05-04
申请号：US11706711
申请日：2007-02-13
申请人： Karim Nassiri-Toussi , Jeffrey M. Gilbert , Chuen-Shen Shung , Dmitry M. Cherniavsky
发明人： Karim Nassiri-Toussi , Jeffrey M. Gilbert , Chuen-Shen Shung , Dmitry M. Cherniavsky
IPC分类号： H01Q3/00 , H04B7/216 , H03C7/02
CPC分类号： H04B7/0851 , H04B7/0617 , H04B7/0684
摘要： A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.
摘要翻译：公开了一种用于自适应光束转向的方法和装置。在一个实施例中，该方法包括使用多个发射和接收天线执行自适应波束导向，包括迭代地执行一对训练序列，其中所述训练序列对包括估计发射机天线阵列权重向量和接收机天线阵列权重向量。

40. 发明申请

US20090323563A1 HD physical layer of a wireless communication device 有权
标题翻译：高清物理层的无线通信设备
公开(公告)号：US20090323563A1
公开(公告)日：2009-12-31
申请号：US11706470
申请日：2007-02-13
申请人： Keangpo Ricky Ho , Karim Nassiri-Toussi , Dengwei Fu , Stephen P. Pope , Jeffrey M. Gilbert , Chuen-Shen Shung , Jianhan Liu
发明人： Keangpo Ricky Ho , Karim Nassiri-Toussi , Dengwei Fu , Stephen P. Pope , Jeffrey M. Gilbert , Chuen-Shen Shung , Jianhan Liu
IPC分类号： H04J3/00 , H04N11/02 , H04L27/28
CPC分类号： H04L1/0041 , H04B7/061 , H04B7/0695 , H04B7/0857 , H04B7/086 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0069 , H04L1/007 , H04L1/0071 , H04L1/0073 , H04L1/1664 , H04L1/1671 , H04L2001/0098 , H04N5/38 , H04N5/4401 , H04N21/43637 , H04W28/06 , H04W28/22 , H04W80/00 , H04W88/02
摘要： A radio frequency (RF) transmitter is coupled to and controlled by a processor to transmit data. A physical layer circuit is coupled to the RF transmitter to encode and decode between a digital signal and a modulated analog signal. The physical layer circuit comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). The low rate channels generated by the low rate physical layer circuit (LRP) share a same frequency band as a corresponding high rate channel generated by the high rate physical layer circuit (HRP).
摘要翻译：射频（RF）发射机被耦合到处理器并由其控制以传输数据。物理层电路耦合到RF发射器以在数字信号和调制的模拟信号之间进行编码和解码。物理层电路包括高速物理层电路（HRP）和低速率物理层电路（LRP）。由低速率物理层电路（LRP）产生的低速率信道与由高速物理层电路（HRP）产生的相应的高速率信道共享相同的频带。

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