公开(公告)号：US07673221B2

公开(公告)日：2010-03-02

申请号：US10046639

申请日：2001-10-26

申请人： Bin Li ,  Alberto Ginesi ,  Song Zhang

发明人： Bin Li ,  Alberto Ginesi ,  Song Zhang

IPC分类号： H03M13/00

CPC分类号： H04L1/0057 ,  H03M13/03 ,  H03M13/35 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/006

摘要： Apparatus and method for generating parameters used in coding data in a data transmission system. The method determines a number of possible coding parameters to satisfy a target coding gain and selects the best set of parameters that balance the code word length and the error rate. In this manner, a minimum coding gain may be used, which minimizes cross-talk on a transmission link.

摘要翻译： 用于产生用于数据传输系统中的数据编码的参数的装置和方法。 该方法确定多个可能的编码参数以满足目标编码增益并选择平衡码字长度和错误率的最佳参数集合。 以这种方式，可以使用最小的编码增益，其最小化传输链路上的串扰。

公开(公告)号：US07173978B2

公开(公告)日：2007-02-06

申请号：US09912068

申请日：2001-07-23

申请人： Song Zhang ,  Bin Li ,  Andrew Deczky ,  Alberto Ginesi

发明人： Song Zhang ,  Bin Li ,  Andrew Deczky ,  Alberto Ginesi

IPC分类号： H04L27/36

CPC分类号： H04L1/006 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0069 ,  H04L5/023 ,  H04L27/2602

摘要： In a coding system for asymmetric digital subscriber line (ADSL) communications, a method of encoding a sequence of information bits is provided comprising the steps of dividing the information bits into encoding bits and parallel bits; encoding the encoding bits to produce encoded bits; mapping the encoded bits and the parallel bits into first and second pulse amplitude modulation (PAM) signals; and generating a quadrature amplitude modulation (QAM) signal from these first and second PAM signals. This method overcomes the decoder complexity that would otherwise be required due to the large QAM constellations involved for ADSL communications.

摘要翻译： 在用于非对称数字用户线（ADSL）通信的编码系统中，提供一种编码信息比特序列的方法，包括以下步骤：将信息比特划分为编码比特和并行比特; 对编码比特进行编码以产生编码比特; 将编码比特和并行比特映射到第一和第二脉冲幅度调制（PAM）信号中; 以及从这些第一和第二PAM信号产生正交幅度调制（QAM）信号。 该方法克服了由于ADSL通信涉及的大的QAM星座而将需要的解码器复杂度。

公开(公告)号：US07463678B2

公开(公告)日：2008-12-09

申请号：US10386391

申请日：2003-03-10

申请人： Alberto Ginesi ,  Song Zhang ,  Andrew Deczky ,  Duncan Baird ,  Christian Bourget

发明人： Alberto Ginesi ,  Song Zhang ,  Andrew Deczky ,  Duncan Baird ,  Christian Bourget

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L27/2607 ,  H04L25/03012 ,  H04L27/2608 ,  H04L2025/03414

摘要： A circuit and method is provided for reducing the effect of having potentially different sizes for an Inverse Discrete Fourier Transform (IDFT) at a transmitter and a Discrete Fourier Transform (DFT) at a receiver in a telecommunications system without requiring a change in the DFT's size. The method includes following steps. The first step includes determining whether the IDFT size is greater than, equal to, or less than the DFT size. The second step includes selecting a target impulse response length from a predefined set of impulse response lengths in accordance with a result the previous step. The third step includes training an equalizer at the receiver to the target impulse response length. The circuit comprises hardware and software for implementing the method.

摘要翻译： 提供了一种电路和方法，用于减少在电信系统的接收机处的发射机处的离散傅立叶逆变换（DFT）和离散傅立叶变换（DFT）具有潜在不同尺寸的影响，而不需要DFT尺寸的变化 。 该方法包括以下步骤。 第一步包括确定IDFT大小是否大于，等于或小于DFT大小。 第二步骤包括根据前一步骤的结果从预定义的一组脉冲响应长度中选择目标脉冲响应长度。 第三步包括将接收机的均衡器训练到目标脉冲响应长度。 该电路包括实现该方法的硬件和软件。

公开(公告)号：US11187806B2

公开(公告)日：2021-11-30

申请号：US15657405

申请日：2017-07-24

申请人： Mohsen Rohani ,  Mohammad Mehdi Mansouri Rad ,  Song Zhang

发明人： Mohsen Rohani ,  Mohammad Mehdi Mansouri Rad ,  Song Zhang

IPC分类号： G01C3/08 ,  G01S17/89 ,  G01S7/481 ,  G01S17/42 ,  G01S17/931

摘要： A LIDAR scanning system. The LIDAR system comprises a laser configured to transmit laser light. An optical switch is optically coupled to the laser to receive laser light via an input port. The optical switch includes a plurality of output ports for transmitting received laser light to an environment to be scanned. Each of the plurality of output ports is oriented in a different direction. A detector subsystem is positioned to receive reflected laser light. A processor is coupled to the detector subsystem. The processor is configured to receive data signals from the detector subsystem. The processor is also configured to determine a distance from the LIDAR scanning system to one or more objects in an environment of the LIDAR scanning system based on a time between a transmission of beams of laser light and a reception of a reflection of the beams of laser light.

公开(公告)号：US20190339180A1

公开(公告)日：2019-11-07

申请号：US16401009

申请日：2019-05-01

申请人： Xiaodan Gu ,  Dakota F. Ehlenberg ,  Song Zhang

发明人： Xiaodan Gu ,  Dakota F. Ehlenberg ,  Song Zhang

IPC分类号： G01N3/08 ,  G01N3/02 ,  G01B13/24

摘要： The invention provides for a material characterization system, method, and instrumentation for measuring the mechanical properties of nano-scale thin films. The thin film mechanical characterization system, method, and instrumentation of the present invention for ultra-thin films includes a motor and load cell. The instrumentation device includes a bath that can be filled or used with liquid so that a thin film can float via the surface tension and can be stretched until permanent deformation occurs, while recording the amount of force applied by the motor and other parameters. Further, the invention provides a process that transfers the nano-scale thin film to the tensile testing instrument and a process to obtain the physical mechanical properties of thin films that are at the nanoscale level.

公开(公告)号：US20190025430A1

公开(公告)日：2019-01-24

申请号：US15657405

申请日：2017-07-24

申请人： Mohsen Rohani ,  Mohammad Mehdi Mansouri Rad ,  Song Zhang

发明人： Mohsen Rohani ,  Mohammad Mehdi Mansouri Rad ,  Song Zhang

IPC分类号： G01S17/89 ,  G01S7/481

摘要： A LIDAR scanning system. The LIDAR system comprises a laser configured to transmit laser light. An optical switch is optically coupled to the laser to receive laser light via an input port. The optical switch includes a plurality of output ports for transmitting received laser light to an environment to be scanned. Each of the plurality of output ports is oriented in a different direction. A detector subsystem is positioned to receive reflected laser light. A processor is coupled to the detector subsystem. The processor is configured to receive data signals from the detector subsystem. The processor is also configured to determine a distance from the LIDAR scanning system to one or more objects in an environment of the LIDAR scanning system based on a time between a transmission of beams of laser light and a reception of a reflection of the beams of laser light.

公开(公告)号：US20170299714A1

公开(公告)日：2017-10-19

申请号：US15262568

申请日：2016-09-12

申请人： Mohsen Rohani ,  Song Zhang

发明人： Mohsen Rohani ,  Song Zhang

IPC分类号： G01S13/90 ,  G01S7/04 ,  G01S13/93

CPC分类号： G01S13/90 ,  G01S7/024 ,  G01S7/043 ,  G01S7/415 ,  G01S13/426 ,  G01S13/52 ,  G01S13/89 ,  G01S13/931 ,  G01S2013/9385

摘要： A system and method to sense an environment based on data acquired by side looking radar. For example, a side looking radar is mounted on one or both sides of a ground-based vehicle and performs measurements from environment while the vehicle is moving. As the vehicle moves, a scan of the environment is therefore performed, wherein movement of the vehicle provides another dimension of information for the scan. In another example, the radar can further scan in the vertical plane at a fixed side looking angle to increase the field of view. A 3D map and localization can be determined from the scan.

公开(公告)号：US08861833B2

公开(公告)日：2014-10-14

申请号：US12388301

申请日：2009-02-18

申请人： Shing-Tung Yau ,  Song Zhang ,  Xiangfeng Gu

发明人： Shing-Tung Yau ,  Song Zhang ,  Xiangfeng Gu

IPC分类号： G06K9/00 ,  G06T7/00 ,  G06T1/00 ,  G01B11/25

CPC分类号： G01B11/2513 ,  G06T1/0007 ,  G06T7/521

摘要： A system for simultaneous real-time three-dimensional geometry and color texture acquisition. The system includes a system processor for generating at least three phase shifted black and white fringe patterns with a phase shift of 2 π/3, a light projector adapted to project the fringe patterns onto an object, the projector being electrically connected with the system processor, and a color camera for capturing the fringe patterns to generate at least three raw fringe images. The fringe images are used to calculate a black and white texture image which is further converted to a color image by employing a demosaicing algorithm. The fringe images are also used to calculate a wrapped phase map that is further processed to generate a continuous unwrapped phase map by employing a phase unwrapping algorithm and the unwrapped phase map is converted to co-ordinates using calibrated system parameters for point-by-point three-dimensional shape measurement.

摘要翻译： 一种用于同时实时三维几何和颜色纹理采集的系统。 该系统包括一个系统处理器，用于产生相移为2＆pgr / / 3的至少三个相移的黑白条纹图案，适用于将条纹图案投射到物体上的投影仪，投影仪与系统电连接 处理器和用于捕获条纹图案的彩色照相机以产生至少三个原始条纹图像。 边缘图像用于计算黑白纹理图像，其通过采用去马赛克算法进一步转换成彩色图像。 边缘图像还用于计算被包围的相位图，其被进一步处理以通过采用相位展开算法产生连续的展开相位图，并且使用校准的系统参数逐点地将展开的相位图转换为坐标 三维形状测量。

公开(公告)号：US08271672B1

公开(公告)日：2012-09-18

申请号：US09942625

申请日：2001-08-31

申请人： Song Zhang ,  Phil Lacroute ,  Anurag P. Gupta ,  Raymond M. Lim ,  Avanindra Godbole ,  Debashis Basu

发明人： Song Zhang ,  Phil Lacroute ,  Anurag P. Gupta ,  Raymond M. Lim ,  Avanindra Godbole ,  Debashis Basu

IPC分类号： G06F15/16

CPC分类号： H04L47/522

摘要： Output logic generates read requests using a programmable schedule that controls read bandwidth for multiple data streams and stores the read requests in a queuing device. The output logic also dequeues the read requests based on a similar programmable schedule, forwards the read requests to the memory, and reads data units from the memory based on the read requests.

摘要翻译： 输出逻辑使用可编程调度来生成读请求，该调度控制多个数据流的读带宽，并将读请求存储在排队设备中。 输出逻辑还基于类似的可编程调度使读请求出队，将读请求转发到存储器，并且基于读请求从存储器读取数据单元。

公开(公告)号：US08014281B1

公开(公告)日：2011-09-06

申请号：US12605421

申请日：2009-10-26

申请人： Raymond Marcelino Manese Lim ,  Song Zhang ,  Anurag P. Gupta ,  Brian Gaudet

发明人： Raymond Marcelino Manese Lim ,  Song Zhang ,  Anurag P. Gupta ,  Brian Gaudet

IPC分类号： G06F11/00 ,  H04L12/26 ,  H04L12/43

CPC分类号： G06F5/06 ,  G06F2205/061

摘要： A system controls the transfer of data. The system receives a request to transfer data and determines whether a counter value equals or exceeds a threshold. The counter value represents an amount of time since a previous data transfer. When the counter value equals or exceeds the threshold, the system transmits the data. In another implementation, the system tracks the amount of data read from a buffer. The system reduces the speed at which data is read when the amount of data read from the buffer exceeds a threshold.

摘要翻译： 系统控制数据传输。 系统接收传送数据的请求，并确定计数器值是否等于或超过阈值。 计数器值表示自先前数据传输以来的时间量。 当计数器值等于或超过阈值时，系统发送数据。 在另一个实现中，系统跟踪从缓冲器读取的数据量。 当从缓冲区读取的数据量超过阈值时，系统会降低读取数据的速度。