公开(公告)号：US07978892B2

公开(公告)日：2011-07-12

申请号：US11923297

申请日：2007-10-24

Applicant: Mark S. Quadling ,  Henley S. Quadling ,  Ye Li ,  Andrei Tchouprakov

Inventor： Mark S. Quadling ,  Henley S. Quadling ,  Ye Li ,  Andrei Tchouprakov

IPC: G06K9/00 ,  A61B6/00

CPC classification number: G01B11/2527 ,  A61C9/006 ,  G06K9/2036 ,  G06T7/521

Abstract: A structured light pattern digitizing method is combined with photogrammetry to determine a 3D model of an object. The structured light digitizing operation generates a 3D model of the object being scanned, and this model is then used to compute a higher accuracy model using photogrammetry.

Abstract translation: 结构化光图案数字化方法与摄影测量结合以确定对象的3D模型。 结构化光数字化操作生成被扫描对象的3D模型，然后使用该模型使用摄影测量法计算更高精度模型。

公开(公告)号：US07756212B2

公开(公告)日：2010-07-13

申请号：US12259231

申请日：2008-10-27

Applicant: Ye Li

Inventor： Ye Li

IPC: H04L1/02

CPC classification number: H04L25/0228 ,  H04L25/0204 ,  H04L25/0242 ,  H04L27/261

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols.

Abstract translation: 在各种实施例中，提供了通过使用各种训练符号组来确定诸如OFDM系统或使用多个发射天线的系统的各种通信系统的信道特性的技术。

公开(公告)号：US20100061484A1

公开(公告)日：2010-03-11

申请号：US12621335

申请日：2009-11-18

Applicant: Ye Li ,  Nelson Ray Sollenberger ,  Jack Harriman Winters

Inventor： Ye Li ,  Nelson Ray Sollenberger ,  Jack Harriman Winters

IPC: H04L27/00

CPC classification number: H04L27/2601 ,  H04L1/0618

Abstract: A MIMO OFDM system includes a plurality of space-time encoders for encoding respective data blocks with independent space-time codes. The transformed data block signals are transmitted by a plurality of transmit antennas and received by a plurality of receive antennas. The received data is pre-whitened prior to maximum likelihood detection. In one embodiment, successive interference cancellation can be sued to improve system performance. Channel parameter estimation can be enhanced by weighting the channel impulse response estimates based upon a deviation from average.

Abstract translation: MIMO OFDM系统包括用于对具有独立时空码的各个数据块进行编码的多个时空编码器。 经变换的数据块信号由多个发射天线发射并由多个接收天线接收。 接收的数据在最大似然检测之前被预先白化。 在一个实施例中，可以起诉连续的干扰消除以改善系统性能。 可以通过基于偏离平均值的信道脉冲响应估计来加权信道参数估计。

公开(公告)号：US20090316817A1

公开(公告)日：2009-12-24

申请号：US12550122

申请日：2009-08-28

Applicant: Ye Li

Inventor： Ye Li

IPC: H04L27/28 ,  H04L27/00 ,  H04L27/06

CPC classification number: H04L25/024 ,  H04L1/06 ,  H04L7/0008 ,  H04L25/0206 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2601 ,  H04L27/261 ,  H04L27/2613

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols that produce zero cross-correlation energy. Channel communication can accordingly be simplified as the zero cross-correlation property allows for channel estimation without a matrix inversion.

Abstract translation: 在各种实施例中，提供技术以通过使用产生零互相关能量的各种训练符号来确定诸如OFDM系统或使用多个发射天线的系统的各种通信系统的信道特性。 因此，可以简化通道通信，因为零互相关特性允许无矩阵求逆的信道估计。

公开(公告)号：US20090122902A1

公开(公告)日：2009-05-14

申请号：US12259231

申请日：2008-10-27

Applicant: Ye Li

Inventor： Ye Li

IPC: H04L1/02

CPC classification number: H04L25/0228 ,  H04L25/0204 ,  H04L25/0242 ,  H04L27/261

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols.

Abstract translation: 在各种实施例中，提供了通过使用各种训练符号组来确定诸如OFDM系统或使用多个发射天线的系统的各种通信系统的信道特性的技术。

公开(公告)号：US20090080575A1

公开(公告)日：2009-03-26

申请号：US12315300

申请日：2008-12-02

Applicant: Justin C. Chuang ,  Ye Li ,  Lang Lin

Inventor： Justin C. Chuang ,  Ye Li ,  Lang Lin

IPC: H04L27/06

CPC classification number: H04L25/0204 ,  H04L27/2647

Abstract: Joint channel estimation and maximum likelihood decoding method for Coded Orthogonal Frequency Division Multiplexing (COFDM) systems are presented. Using this method in conjunction with convolutional coding, robust and nearly optimal coherent detection can be achieved in rapid dispersive fading channels. Significant performance gain in packet data throughput is realized in a system with aggressive frequency reuse. A method for estimating channel characteristics in a multicarrier transmission system comprising the steps of receiving a multicarrier signal, applying Fast Fourier transformations to the multicarrier signal, estimating channel characteristics of a multicarrier channel over which the multicarrier signal was transmitted using a combination of iterative processing and iterative backward processing, and decoding the transformed multicarrier signal is presented.

公开(公告)号：US07127001B2

公开(公告)日：2006-10-24

申请号：US11240899

申请日：2005-09-30

Applicant: Ye Li

Inventor： Ye Li

IPC: H04L1/02

CPC classification number: H04L25/0228 ,  H04L25/0204 ,  H04L25/0242 ,  H04L27/261

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols.

Abstract translation: 在各种实施例中，提供了通过使用各种训练符号组来确定诸如OFDM系统或使用多个发射天线的系统的各种通信系统的信道特性的技术。

公开(公告)号：US07012966B2

公开(公告)日：2006-03-14

申请号：US09861811

申请日：2001-05-21

Applicant: Ye Li

Inventor： Ye Li

IPC: H04L1/02

CPC classification number: H04L25/0228 ,  H04L25/0204 ,  H04L25/0242 ,  H04L27/261

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols.

公开(公告)号：US06795392B1

公开(公告)日：2004-09-21

申请号：US09535945

申请日：2000-03-27

Applicant: Ye Li ,  Nelson Ray Sollenberger

Inventor： Ye Li ,  Nelson Ray Sollenberger

IPC: H04J1100

CPC classification number: H04L27/2647 ,  H04L5/023 ,  H04L25/0204 ,  H04L25/0242

Abstract: An improved OFDM receiver is realized by employing a simplified delay function for the transmissions channel. The simplified delay function yields a simplified frequency-domain correlation that is applied to develop an Eigen matrix U that is used in developing estimates of the channels. Those channel estimates are used in the receiver to develop the output signals.

Abstract translation: 通过对传输信道采用简化的延迟函数来实现改进的OFDM接收机。 简化的延迟函数产生一个简化的频域相关性，用于开发用于开发信道估计的特征矩阵U。 在接收机中使用这些信道估计来开发输出信号。

公开(公告)号：US09426009B2

公开(公告)日：2016-08-23

申请号：US13296610

申请日：2011-11-15

Applicant: Ye Li ,  Nelson Ray Sollenberger ,  Jack Harriman Winters

Inventor： Ye Li ,  Nelson Ray Sollenberger ,  Jack Harriman Winters

IPC: H04L27/26 ,  H04L1/06

CPC classification number: H04L27/2601 ,  H04L1/0618

Abstract: A MIMO OFDM system includes a plurality of space-time encoders for encoding respective data blocks with independent space-time codes. The transformed data block signals are transmitted by a plurality of transmit antennas and received by a plurality of receive antennas. The received data is pre-whitened prior to maximum likelihood detection. In one embodiment, successive interference cancellation can be sued to improve system performance. Channel parameter estimation can be enhanced by weighting the channel impulse response estimates based upon a deviation from average.

Abstract translation: MIMO OFDM系统包括用于对具有独立时空码的各个数据块进行编码的多个时空编码器。 经变换的数据块信号由多个发射天线发射并由多个接收天线接收。 接收的数据在最大似然检测之前被预先白化。 在一个实施例中，可以起诉连续的干扰消除以改善系统性能。 可以通过基于偏离平均值的信道脉冲响应估计来加权信道参数估计。