公开(公告)号：US08559571B2

公开(公告)日：2013-10-15

申请号：US11840891

申请日：2007-08-17

Applicant: Chien-Cheng Tung ,  Thomas Edward Pare, Jr.

Inventor： Chien-Cheng Tung ,  Thomas Edward Pare, Jr.

IPC: H03D1/04

CPC classification number: H04B17/0085 ,  H04B7/0413 ,  H04B7/0617 ,  H04B17/21

Abstract: An embodiment of the present invention includes a calibration system employed in a multi-input-multi-output (MIMO) system for beamforming and receiving a plurality of streams. The system includes a first calibration circuit responsive to inphase (I) and quadrature (Q) pairs of stream and operative to calibrate each I and Q pair and a second calibration circuit responsive to the calibrated I and Q pairs for all streams, wherein the first and second calibration circuits perform calibration in the time domain.

Abstract translation: 本发明的实施例包括用于波束成形和接收多个流的多输入多输出（MIMO）系统中的校准系统。 该系统包括响应于同相（I）和正交（Q）对流并且可操作地校准每个I和Q对的第一校准电路，以及响应于所有流的经校准的I和Q对的第二校准电路，其中第一 并且第二校准电路在时域中执行校准。

公开(公告)号：US07986755B2

公开(公告)日：2011-07-26

申请号：US11840897

申请日：2007-08-17

Applicant: Chien-Cheng Tung ,  Thomas Edward Pare, Jr.

Inventor： Chien-Cheng Tung ,  Thomas Edward Pare, Jr.

IPC: H03D1/04

CPC classification number: H04B7/0417 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/364 ,  H04L27/3863

Abstract: An embodiment of the present invention includes a calibration system employed in a multi-input-multi-output (MIMO) system for beamforming and receiving a plurality of streams. The system includes a first calibration circuit responsive to inphase (I) and quadrature (Q) pairs of stream and operative to calibrate each I and Q pair and a second calibration circuit responsive to the calibrated I and Q pairs for all streams, wherein the first and second calibration circuits perform calibration in the time domain.

Abstract translation: 本发明的实施例包括用于波束成形和接收多个流的多输入多输出（MIMO）系统中的校准系统。 该系统包括响应于同相（I）和正交（Q）对流并且可操作地校准每个I和Q对的第一校准电路，以及响应于所有流的经校准的I和Q对的第二校准电路，其中第一 并且第二校准电路在时域中执行校准。

公开(公告)号：US07486751B1

公开(公告)日：2009-02-03

申请号：US11048075

申请日：2005-01-31

Applicant: Thomas Edward Pare, Jr. ,  Shuling Feng ,  Chien-Cheng Tung

Inventor： Thomas Edward Pare, Jr. ,  Shuling Feng ,  Chien-Cheng Tung

IPC: H04B7/10

CPC classification number: H04L25/03159 ,  H04B7/0413 ,  H04B7/0857 ,  H04L25/0204 ,  H04L25/03343 ,  H04L27/2655 ,  H04L27/2662 ,  H04L2025/03414 ,  H04L2025/03522

Abstract: A multi input multi output (MIMO) receiver for receiving signals having a synchronization (SYNC) module being responsive to a plurality of received baseband signals for processing the same to generate maximum ratio combining (MRC) parameters, complementary code keying (CCK) modulated signals and orthogonal frequency division multiplexing (OFDM) modulated signals, said SYNC module for using said MRC parameters to process said OFDM modulated signals to generate a plurality of aligned OFDM signals in time domain, said MIMO receiver for processing said plurality of aligned OFDM signals to generate a plurality of subcarriers, in accordance with an embodiment of the present invention. The MIMO receiver further including a time domain CCK MRC module being responsive to said MRC parameters for processing said CCK modulated signals in time domain to generate aligned signals, said aligned signals being combined to generate an adjusted signal for demodulation. The MIMO receiver further including a frequency domain OFDM MRC module being responsive to said plurality of said subcarriers for combining the same in the frequency domain to generate an equalized response for demodulation, wherein said MIMO receiver for processing said CCK modulated signals in the time domain and said OFDM modulated signals in the frequency domain to improve the reception of said plurality of received baseband signals.

Abstract translation: 一种多输入多输出（MIMO）接收机，用于接收具有同步（SYNC）模块的信号，该同步（SYNC）模块响应于多个接收的基带信号进行处理，以产生最大比率组合（MRC）参数，互补码键控（CCK）调制信号 和正交频分复用（OFDM）调制信号，所述SYNC模块用于使用所述MRC参数来处理所述OFDM调制信号以在时域中产生多个对准的OFDM信号，所述MIMO接收机用于处理所述多个对准的OFDM信号以产生 多个子载波，根据本发明的实施例。 所述MIMO接收机还包括响应于所述MRC参数的时域CCK MRC模块，用于在时域中处理所述CCK调制信号以生成对准的信号，所述对准的信号被组合以产生用于解调的经调整的信号。 MIMO接收机还包括响应于所述多个所述子载波的频域OFDM MRC模块，用于在频域中组合它们以产生用于解调的均衡响应，其中所述MIMO接收机用于在时域中处理所述CCK调制信号，以及 所述OFDM调制信号在频域中以改善所述多个接收的基带信号的接收。

公开(公告)号：US07856068B1

公开(公告)日：2010-12-21

申请号：US11475606

申请日：2006-06-26

Applicant: Chien-Cheng Tung ,  Thomas Edward Pare, Jr.

Inventor： Chien-Cheng Tung ,  Thomas Edward Pare, Jr.

IPC: H04B7/02

CPC classification number: H04L25/0242 ,  H04B7/0617 ,  H04L25/0232 ,  H04L27/2613 ,  H04L27/2657 ,  H04L2027/0026 ,  H04L2027/0055 ,  H04L2027/0065

Abstract: A multi input multi output (MIMO) system for transmitting and receiving packets having a nested preamble format included in said packets and having poly-carrier long training sequence (LTS) and signal field (SIG) for training receivers, in accordance with an embodiment of the present invention. Said packets being transmitted using the modulation scheme of a wireless local area network (WLAN) standard, said nested preamble format for allowing said receivers to use one or more receiver antennas to interpret said LTS and said SIG to increase the efficiency of said MIMO system.

Abstract translation: 一种多输入多输出（MIMO）系统，用于发送和接收包括在所述分组中的具有嵌套前导码格式的分组，并且具有用于训练接收机的多载波长训练序列（LTS）和信号字段（SIG） 本发明。 所述分组使用无线局域网（WLAN）标准的调制方案发送，所述嵌套前导码格式允许所述接收机使用一个或多个接收机天线来解释所述LTS和所述SIG，以提高所述MIMO系统的效率。

公开(公告)号：US07545891B1

公开(公告)日：2009-06-09

申请号：US11074921

申请日：2005-03-07

Applicant: Thomas Edward Pare, Jr. ,  Chien-Cheng Tung

Inventor： Thomas Edward Pare, Jr. ,  Chien-Cheng Tung

IPC: H04L27/06

CPC classification number: H04L25/03159 ,  H04L5/0007 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03522

Abstract: A modem system for transmitting and receiving signals having a frequency domain equalizer (FEQ) being responsive to a plurality of received data symbols for processing the same to generate one or more equalized data symbols, said modem system being responsive to a plurality of received baseband signals for processing the same to generate said plurality of received data symbols, said plurality of received data symbols for including one or more sets of pilot tones, said FEQ for processing said sets of pilot tones to generate one or more sets of equalized sets of pilot tones, in accordance with an embodiment of the present invention. The modem system further includes a frequency offset detection module being responsive to said sets of equalized pilot tones to generate one or more instantaneous carrier offsets, said modem system for processing said instantaneous carrier offsets to generate one or more frequency corrections for applying the same to said plurality of received baseband signals to remove carrier offsets therefrom, wherein the flexible architecture of said modem system allows for removal of said carrier offsets to improve reception of said plurality of received baseband signals.

Abstract translation: 一种用于发送和接收具有频域均衡器（FEQ）的信号的调制解调器系统，该频域均衡器响应于多个接收的数据符号进行处理以产生一个或多个均衡的数据符号，所述调制解调器系统响应于多个接收的基带信号 用于处理它们以产生所述多个接收数据符号，所述多个接收数据符号用于包括一组或多组导频音，所述FEQ用于处理所述导频音组以产生一组或多组均衡的导频音集 ，根据本发明的实施例。 调制解调器系统还包括频率偏移检测模块，响应于所述均衡导频音调集合以产生一个或多个瞬时载波偏移，所述调制解调器系统用于处理所述瞬时载波偏移以产生一个或多个频率校正，以将其应用于所述 多个接收的基带信号以从其中去除载波偏移，其中所述调制解调器系统的灵活架构允许去除所述载波偏移以改善所述多个接收的基带信号的接收。

公开(公告)号：US07266146B2

公开(公告)日：2007-09-04

申请号：US10402710

申请日：2003-03-28

Applicant: Thomas Edward Pare, Jr. ,  Chien-Cheng Tung ,  Cedric Choi

Inventor： Thomas Edward Pare, Jr. ,  Chien-Cheng Tung ,  Cedric Choi

IPC: H03H7/40

CPC classification number: H04L25/03292 ,  H04L23/02 ,  H04L25/03267 ,  H04L2025/0342 ,  H04L2027/0038

Abstract: A maximum likelihood sequence estimator (MLSE) equalizer device being included in an MLSE sub-receiver includes a feedforward circuit responsive to input data for processing the same to generate feedforward circuit output, said input data being generated from transmitted data being transmitted by wireless transmission, in accordance with an embodiment of the present invention. The MLSE equalizer device further includes a feedback circuit responsive to said input data for processing the same to generate feedback circuit output. The MLSE equalizer device further includes an equalizer training module responsive to said feedforward circuit output and said feedback circuit output for training said MLSE equalizer device by minimizing the difference between said feedforward circuit output and said feedback circuit output, said MLSE equalizer device being trained to generate equalized data, said MLSE sub-receiver for decoding said equalized data to generate decoded transmitted data by mitigating the effects of multi-path communication channel due to wireless transmission of said transmitted data.

Abstract translation: 包括在MLSE子接收机中的最大似然序列估计器（MLSE）均衡器装置包括响应于输入数据进行处理以产生前馈电路输出的前馈电路，所述输入数据是通过无线传输发送的传输数据产生的， 根据本发明的实施例。 MLSE均衡器装置还包括响应于所述输入数据的反馈电路，用于对其进行处理以产生反馈电路输出。 MLSE均衡器装置还包括响应于所述前馈电路输出的均衡器训练模块和所述反馈电路输出，用于通过最小化所述前馈电路输出和所述反馈电路输出之间的差来训练所述MLSE均衡器装置，所述MLSE均衡器装置经过训练以产生 所述MLSE子接收机用于解码所述均衡数据以通过减轻由于所述传输数据的无线传输而导致的多径通信信道的影响来生成解码的发送数据。

公开(公告)号：US10206122B2

公开(公告)日：2019-02-12

申请号：US15121044

申请日：2015-02-24

Applicant: MEDIATEK INC. ,  James June-Ming Wang ,  Jianhan Liu ,  Thomas Edward Pare, Jr. ,  Tianyu Wu ,  Gabor Bajko ,  Yung-Ping Hsu

Inventor： James June-Ming Wang ,  Jianhan Liu ,  Thomas Edward Pare, Jr. ,  Tianyu Wu ,  Gabor Bajko ,  Yung-Ping Hsu

IPC: H04W16/22 ,  G01S3/74 ,  G01S3/14 ,  G01S5/12 ,  G01S1/08 ,  H04L5/00 ,  H04L29/06 ,  H04B7/06 ,  H04B17/318 ,  G01S5/06 ,  H04W4/02 ,  G01S5/02 ,  H04W24/10 ,  H04W64/00 ,  H04W4/04 ,  H04W84/12

Abstract: A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.

公开(公告)号：US08126095B1

公开(公告)日：2012-02-28

申请号：US11584025

申请日：2006-10-20

Applicant: Thomas Edward Pare, Jr.

Inventor： Thomas Edward Pare, Jr.

IPC: H04B7/10 ,  H04L1/02

CPC classification number: H04B7/0857 ,  H04B7/0413 ,  H04L5/0023 ,  H04L23/02 ,  H04L25/03057 ,  H04L25/03159 ,  H04L27/2655 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03617

Abstract: A multi input multi output (MIMO) receiver for receiving signals having a plurality of equalizers being responsive to aligned signals for processing the same to generate a plurality of equalized outputs using filter coefficients, in accordance with an embodiment of the present invention. The MIMO receiver for training said plurality of equalizers to adapt said filter coefficients for generating said plurality of equalized outputs, said MIMO receiver for combining said plurality of equalized outputs in time domain to generate a weighted output, said MIMO receiver for improving the quality of said weighted output by performing equalization prior to combining said plurality of equalized outputs.

Abstract translation: 根据本发明的实施例，一种用于接收具有多个均衡器的信号的多输入多输出（MIMO）接收机，响应于对准信号进行处理，以产生使用滤波器系数的多个均衡输出。 所述MIMO接收机用于训练所述多个均衡器以适应所述滤波器系数以产生所述多个均衡输出，所述MIMO接收机用于在时域中组合所述多个均衡输出以产生加权输出，所述MIMO接收机用于提高所述多个均衡输出的质量 在组合所述多个均衡输出之前执行均衡的加权输出。

公开(公告)号：US08228806B2

公开(公告)日：2012-07-24

申请号：US12563979

申请日：2009-09-21

Applicant: Thomas Edward Pare, Jr. ,  Kiran Uln ,  Peter Loc

Inventor： Thomas Edward Pare, Jr. ,  Kiran Uln ,  Peter Loc

IPC: H04L12/26 ,  H04W84/02

CPC classification number: H04L27/0012 ,  H04L1/0091 ,  H04L27/2613

Abstract: A method and system of communicating packets and detecting packets are disclosed. In a first aspect, the method and system comprise enabling the detection of a very high throughput (VHT) signal field. The VHT signal field is distinguishable from other signal fields, wherein the VHT signal field allows for a backward compatibility with other devices. In a second aspect, the method and system comprise initializing the device to be in receive mode and receiving at least one signal field symbol and detecting the presence of additional signal field symbols. The method and system further include distinguishing a very high throughput (VHT) signal field from other signal field symbols and decoding the VHT signal field parameters uniquely describing the VHT packet format.

Abstract translation: 公开了传送数据包和检测数据包的方法和系统。 在第一方面，该方法和系统包括能够检测非常高吞吐量（VHT）信号场。 VHT信号域与其他信号场区分开，其中VHT信号域允许与其它设备的向后兼容性。 在第二方面，所述方法和系统包括将设备初始化为处于接收模式并且接收至少一个信号字段符号并检测附加信号字段符号的存在。 该方法和系统还包括将非常高的吞吐量（VHT）信号字段与其他信号字段符号区分开来，并解码唯一描述VHT分组格式的VHT信号字段参数。

公开(公告)号：US08040970B2

公开(公告)日：2011-10-18

申请号：US11949706

申请日：2007-12-03

Applicant: Thomas Edward Pare, Jr.

Inventor： Thomas Edward Pare, Jr.

IPC: H04L27/00

CPC classification number: H04B7/0413

Abstract: A multi input multi output (MIMO) transceiver having a channel estimation module being responsive to received samples including channel state information (CSI) and operative to generate time domain beamforming parameters, in accordance with an embodiment of the present invention. The multi input multi output (MIMO) transceiver further includes an adaptive beamforming parameters module coupled to receive said time domain beamforming parameters and operative to generate time domain adaptive beamforming parameters, said adaptive beamforming parameters module operative to process said time domain beamforming parameters to generate frequency domain adaptive beamforming parameters, a decoding module coupled to receive said frequency domain adaptive beamforming parameters and operative to generate data bits, a channel parameters module coupled to receive said data bits and operative to extract said time domain adaptive beamforming parameters, an encoding module coupled to receive said time domain adaptive beamforming parameters and operative to generate a data packet, said encoding module operative to encode said data packet to generate a modulated data stream, and a beamform matrices module coupled to receive said modulated data stream and operative to generate a beamformed data stream based on said frequency domain adaptive beamforming parameters, said MIMO transceiver operative to process said beamformed data stream to generate output signals and to transmit said output signals by forming beam patterns.

Abstract translation: 一种多输入多输出（MIMO）收发器，具有信道估计模块，响应于包括信道状态信息（CSI）的接收样本，并且可操作以产生时域波束成形参数，根据本发明的实施例。 所述多输入多输出（MIMO）收发器还包括自适应波束成形参数模块，其耦合以接收所述时域波束成形参数并且可操作以产生时域自适应波束成形参数，所述自适应波束成形参数模块可操作以处理所述时域波束成形参数以产生频率 域自适应波束成形参数，解码模块，被耦合以接收所述频域自适应波束形成参数并且可操作以产生数据比特，信道参数模块，被耦合以接收所述数据比特并且可操作以提取所述时域自适应波束成形参数，编码模块耦合到 接收所述时域自适应波束成形参数并且可操作以产生数据分组，所述编码模块可操作地编码所述数据分组以生成调制数据流，以及波束形矩阵模块，耦合以接收所述调制数据流并且可操作以产生bea 基于所述频域自适应波束形成参数的成形数据流，所述MIMO收发器可操作以处理所述波束形成的数据流以产生输出信号并通过形成波束图案来发送所述输出信号。