公开(公告)号：US07366254B2

公开(公告)日：2008-04-29

申请号：US11636032

申请日：2006-12-08

申请人： Li Fung Chang ,  Nelson R. Sollenberger ,  Yongqian Wang ,  Aki Shohara ,  Yue Chen

发明人： Li Fung Chang ,  Nelson R. Sollenberger ,  Yongqian Wang ,  Aki Shohara ,  Yue Chen

IPC分类号： H03K9/00

CPC分类号： H04L1/0059 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1829 ,  H04L1/1835 ,  H04L1/1845 ,  H04L1/203 ,  H04L1/208 ,  H04L25/03006 ,  H04L25/03318 ,  H04L25/067 ,  H04L27/0008 ,  H04L2025/03401 ,  H04L2025/03407 ,  H04L2025/03726 ,  H04L2027/0038

摘要： A system for implementing Incremental Redundancy (IR) operations in a wireless receiver includes a baseband processor, an equalizer, a system processor, and an IR processing module. The baseband processor receives an analog signal corresponding to a data block and samples the analog signal to produce samples. The equalizer receives the samples from the baseband processor, equalizes the samples, and produces soft decision bits corresponding to the data block. The equalizer may be implemented as a distinct processing component or may be performed by the baseband processor or system processor. The system processor receives at least the soft decision bits and initiates IR operations. The IR processing module receives the soft decision bits of the data block and performs IR operations on the data block in an attempt to correctly decode a corresponding data block.

摘要翻译： 用于在无线接收机中实现增量冗余（IR）操作的系统包括基带处理器，均衡器，系统处理器和IR处理模块。 基带处理器接收对应于数据块的模拟信号，并对模拟信号进行采样以产生采样。 均衡器从基带处理器接收样本，对采样进行均衡，并产生与数据块相对应的软判决位。 均衡器可以被实现为不同的处理组件，或者可以由基带处理器或系统处理器执行。 系统处理器至少接收软判决位，并启动IR操作。 IR处理模块接收数据块的软判决位，并对数据块执行IR操作，以试图正确解码对应的数据块。

公开(公告)号：US07334179B2

公开(公告)日：2008-02-19

申请号：US10919138

申请日：2004-08-16

申请人： Yan Zhang ,  Paul Yang Lu ,  Yue Chen

发明人： Yan Zhang ,  Paul Yang Lu ,  Yue Chen

IPC分类号： G11C29/42

CPC分类号： G06F11/1008 ,  G06F11/1076

摘要： A method and system for ensuring data integrity in a data processing system may comprise monitoring when data for a specified device is available for error correction code generation, and receiving a first indication of the specified device, a second indication of the data, and a third indication of a size of the data during the monitoring. A new error correction code may be generated in hardware for the data based on the indicated size of the data and an indication may be provided to signal when generation of the new error correction code for a specified number of accesses for at least a portion of the data is complete. Detected errors may be corrected in software based on the newly generated error correction code. The first indication may be a device selection signal and the error correction code generation may be enabled or disabled via an enable signal.

摘要翻译： 一种用于确保数据处理系统中的数据完整性的方法和系统可以包括监视指定设备的数据是否可用于产生纠错码，以及接收指定设备的第一指示，数据的第二指示，以及第三 在监视期间指示数据的大小。 可以基于所指示的数据大小在数据的硬件中生成新的纠错码，并且可以提供指示，用于当针对至少一部分的数据的指定数量的访问生成新的纠错码时， 数据完成。 检测到的错误可能会根据新生成的纠错码在软件中进行修正。 第一指示可以是设备选择信号，并且可以经由使能信号使能或禁用纠错码生成。

公开(公告)号：US20070248152A1

公开(公告)日：2007-10-25

申请号：US11379451

申请日：2006-04-20

申请人： Chi-Shin Wang ,  Yue Chen ,  Zhike Jia

发明人： Chi-Shin Wang ,  Yue Chen ,  Zhike Jia

IPC分类号： H04B1/00

CPC分类号： G01S19/24

摘要： Fast Fourier Transform (FFT) based Phase Lock Loops (PLLs) are provided for use in navigational signal receivers. In an embodiment, a navigation receiver correlates a received navigational signal with a locally generated signal into correlation samples, e.g., one-millisecond correlation samples. The navigation receiver includes a FFT based PLL that corrects phase shifts in the correlation samples due to the Doppler frequency by considering both the Doppler frequency and its rate of change, which are obtained from a FFT computation with interpolation. The phase corrected correlation samples are then integrated over a length of a navigation data bit, e.g., 20 milliseconds, to determine the sign of the data bit of the received signal. In another embodiment, a soft decision feedback technique involving integration extending over the present data bit and several prior data bits is used to determine the sign of a present data bit of the received signal.

摘要翻译： 基于快速傅里叶变换（FFT）的锁相环（PLL）被提供用于导航信号接收机。 在一个实施例中，导航接收器将接收到的导航信号与本地生成的信号相关联成相关样本，例如，一毫秒相关样本。 导航接收机包括基于FFT的PLL，其通过考虑从具有插值的FFT计算获得的多普勒频率及其变化率来校正由于多普勒频率引起的相关样本中的相移。 然后将相位校正的相关样本在导航数据位的长度（例如20毫秒）上积分，以确定接收信号的数据位的符号。 在另一个实施例中，使用涉及在当前数据位和若干先前数据位上延伸的积分的软判决反馈技术来确定接收信号的当前数据位的符号。

公开(公告)号：US20070098900A1

公开(公告)日：2007-05-03

申请号：US11393754

申请日：2006-03-31

申请人： Akira Abe ,  Janet Carlock ,  Yue Chen ,  Hailing Duan ,  Toshio Hara ,  Haixing Wan ,  Tsutomu Watanabe

发明人： Akira Abe ,  Janet Carlock ,  Yue Chen ,  Hailing Duan ,  Toshio Hara ,  Haixing Wan ,  Tsutomu Watanabe

IPC分类号： B05D5/00 ,  H01L21/00 ,  B05D1/36

CPC分类号： B41M5/267 ,  B41M5/327 ,  B41M5/3275 ,  B41M5/3335 ,  B41M5/3372 ,  B41M5/42 ,  B41M5/44 ,  B41M2205/04

摘要： A laser markable media that can provide superior mark quality with high contrast, high resolution, and a high degree of quality consistency, and that does not rely on physical damages to the material integrity on the exposed area. The laser markable media further provides a balanced performance between good media storage stability, heat resistance and optimum sensitivity to laser exposure. Also disclosed is a laser markable media that has a high degree of transparency to satisfy a wider range of application requirements than found in the prior art and a method of using the media.

摘要翻译： 可激光标记的介质可以提供卓越的标记质量，高对比度，高分辨率和高度的质量一致性，并且不依赖于对暴露区域的材料完整性的物理损坏。 激光可标记介质进一步提供良好的介质存储稳定性，耐热性和对激光曝光的最佳灵敏度之间的平衡性能。 还公开了具有高透明度的可激光标记介质，以满足比现有技术中发现的更广泛的应用要求以及使用该介质的方法。

公开(公告)号：US07164732B2

公开(公告)日：2007-01-16

申请号：US10731803

申请日：2003-12-09

申请人： Li Fung Chang ,  Nelson Sollenberger ,  Yongqian Wang ,  Aki Shohara ,  Yue Chen

发明人： Li Fung Chang ,  Nelson Sollenberger ,  Yongqian Wang ,  Aki Shohara ,  Yue Chen

IPC分类号： H04L27/00

CPC分类号： H04L1/0059 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1829 ,  H04L1/1835 ,  H04L1/1845 ,  H04L1/203 ,  H04L1/208 ,  H04L25/03006 ,  H04L25/03318 ,  H04L25/067 ,  H04L27/0008 ,  H04L2025/03401 ,  H04L2025/03407 ,  H04L2025/03726 ,  H04L2027/0038

摘要： A system for implementing Incremental Redundancy (IR) operations in a wireless receiver includes a baseband processor, an equalizer, a system processor, and an IR processing module. The baseband processor receives an analog signal corresponding to a data block and samples the analog signal to produce samples. The equalizer receives the samples from the baseband processor, equalizes the samples, and produces soft decision bits corresponding to the data block. The equalizer may be implemented as a distinct processing component or may be performed by the baseband processor or system processor. The system processor receives at least the soft decision bits and initiates IR operations. The IR processing module receives the soft decision bits of the data block and performs IR operations on the data block in an attempt to correctly decode a corresponding data block.

摘要翻译： 用于在无线接收机中实现增量冗余（IR）操作的系统包括基带处理器，均衡器，系统处理器和IR处理模块。 基带处理器接收对应于数据块的模拟信号，并对模拟信号进行采样以产生采样。 均衡器从基带处理器接收样本，对采样进行均衡，并产生与数据块相对应的软判决位。 均衡器可以被实现为不同的处理组件，或者可以由基带处理器或系统处理器执行。 系统处理器至少接收软判决位，并启动IR操作。 IR处理模块接收数据块的软判决位，并对数据块执行IR操作，以试图正确解码对应的数据块。

公开(公告)号：US20060061852A1

公开(公告)日：2006-03-23

申请号：US11208109

申请日：2005-08-20

申请人： Raymond Chu ,  Yue Chen

发明人： Raymond Chu ,  Yue Chen

IPC分类号： G02F1/33

CPC分类号： G02F1/33 ,  G02F2203/055

摘要： An optical tunable filter that includes an tunable acousto-opto deflector (AOD) for deflecting a broad band beam to an expander for projecting the broad band beam to a set of grating for generated a tuned output beam corresponding to a deflection from the AOD and a wavelength resolution of the set of gratings. The AOD further includes an RF driver for tuning the AOD with an RF driving signal. The AOD further comprises a directional tuning acousto-optic crystal. The optical beam expander further includes a first and a second beam expanding prisms that composed of a material suitable for a dense wavelength division multiplexing (DWDM) application over a wavelength range covering S, C and L bands.

摘要翻译： 一种光学可调滤波器，其包括可调谐声光偏转器（AOD），用于将宽带光束偏转到扩展器，用于将宽带光束投射到一组光栅，用于产生对应于来自AOD的偏转的调谐输出光束，以及 该组光栅的波长分辨率。 AOD还包括一个RF驱动器，用于通过RF驱动信号调谐AOD。 AOD还包括定向调谐声光晶体。 光束扩展器还包括第一和第二光束扩展棱镜，其由适于在覆盖S，C和L波段的波长范围上的密集波分复用（DWDM）应用的材料组成。

公开(公告)号：US20050272400A1

公开(公告)日：2005-12-08

申请号：US10926763

申请日：2004-08-26

申请人： Yue Chen ,  Minsheng Wang

发明人： Yue Chen ,  Minsheng Wang

IPC分类号： H04L25/02 ,  H04L27/38 ,  H03M1/00 ,  H01Q11/12 ,  H04B1/04

CPC分类号： H04L27/38

摘要： In a wireless device, a method and system for a baseband receiver interface including analog and digital components are provided. An analog or a digital interface may be selected for a I/Q data signal received from a front-end receiver. The analog interface may be a conventional RF or a VLIF interface. The I/Q data signal may be digitized when received from the analog interface and saturation detection may be used during digitization of the I/Q data signal. When the analog interface is the VLIF interface, a derotator may be used to remove the VLIF frequency. The derotator may be based on a CORDIC algorithm. The I/Q data signal may be converted from serial to parallel format when received from the digital interface. The received I/Q data signal may be decimated before transferred to a baseband processor.

摘要翻译： 在无线设备中，提供了包括模拟和数字组件的用于基带接收器接口的方法和系统。 可以为从前端接收机接收的I / Q数据信号选择模拟或数字接口。 模拟接口可以是传统的RF或VLIF接口。 当从模拟接口接收时，I / Q数据信号可以被数字化，并且在数字化I / Q数据信号期间可以使用饱和检测。 当模拟接口是VLIF接口时，可以使用解旋器去除VLIF频率。 解旋器可以基于CORDIC算法。 当从数字接口接收时，I / Q数据信号可以从串行转换为并行格式。 接收的I / Q数据信号可以在传送到基带处理器之前被抽取。

公开(公告)号：US06775521B1

公开(公告)日：2004-08-10

申请号：US09642698

申请日：2000-08-09

申请人： Yue Chen

发明人： Yue Chen

IPC分类号： H04B1700

CPC分类号： H04L1/20 ,  H04B17/336 ,  H04L1/201

摘要： A method for identifying a bad GSM speed frame and simultaneously maintaining a frame erasure rate below a specified value. The method is based upon a joint use of four signal quality metrics: (1) frame CRC parity check; (2) estimated burst signal-to-noise ratio; (3) estimated frame bit error count; and (4) stealing flag values of a frame. Another feature includes providing an improved estimated burst signal-to-noise ratio.

摘要翻译： 一种识别不良GSM速度帧并同时将帧擦除率保持在指定值以下的方法。 该方法基于四个信号质量度量的联合使用：（1）帧CRC奇偶校验; （2）估计突发信噪比; （3）估计帧位错误计数; 和（4）窃取帧的标志值。 另一个特征包括提供改进的估计突发脉冲串信噪比。

公开(公告)号：US06526523B1

公开(公告)日：2003-02-25

申请号：US09179647

申请日：1998-10-27

申请人： Yue Chen ,  Costin Hagiu

发明人： Yue Chen ,  Costin Hagiu

IPC分类号： H02H305

CPC分类号： G06F11/3672

摘要： A method and system for testing software filters used in a multimedia environment to support kernel streaming. In a computer, a source module generates a data stream in order to emulate a multimedia input device, such as a microphone or video camera. A plurality of software filters are communicatively coupled to form a software filter chain. The chain of software filters receives the data stream from the source module and propagates the data stream through each software filter for processing. An analysis module receives the processed data stream from the chain of software, filters and produces performance information as a function of the received data stream. The source module, the analysis module and each software filter operate in a kernel-mode and are configured by a test tool operating in non-kernel mode. Via the test tool, a user can select appropriate source and analysis modules as well as construct the chain of software filters to include a large number of software filters. In order to assess the functionality of a large number software filters under real-world conditions using a single computer, the invention couples the software filters by one or more virtual circuits that route the data stream to and from a network.

摘要翻译： 用于测试多媒体环境中使用的软件过滤器以支持内核流的方法和系统。 在计算机中，源模块生成数据流以便模拟诸如麦克风或摄像机的多媒体输入设备。 多个软件过滤器通信地耦合以形成软件过滤器链。 软件过滤器链从源模块接收数据流，并通过每个软件过滤器传播数据流进行处理。 分析模块从软件链接收经处理的数据流，根据接收到的数据流过滤并产生性能信息。 源模块，分析模块和每个软件过滤器都以内核模式运行，并由在非内核模式下运行的测试工具进行配置。 通过测试工具，用户可以选择适当的源和分析模块，并构建软件过滤器链，以包含大量的软件过滤器。 为了使用单个计算机在真实世界条件下评估大量软件滤波器的功能，本发明通过将数据流与网络路由的一个或多个虚拟电路耦合软件滤波器。