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    Simplified acquisition apparatus and method for a Bluetooth receiver
    1.
    发明授权
    Simplified acquisition apparatus and method for a Bluetooth receiver 有权
    用于蓝牙接收机的简化采集装置和方法

    公开(公告)号：US08509361B2

    公开(公告)日：2013-08-13

    申请号：US12700623

    申请日：2010-02-04

    申请人： Jeng-Hong Chen ,  Pansop Kim ,  Hsin-Hsiang Liu ,  Hsin-Hsu Chi

    发明人： Jeng-Hong Chen ,  Pansop Kim ,  Hsin-Hsiang Liu ,  Hsin-Hsu Chi

    IPC分类号： H03D1/00

    CPC分类号： H04L27/06 ,  H04L27/22

    摘要： An acquisition scheme is provided for receiving a Bluetooth basic data rate (BDR) or enhanced data rate (EDR) packet. An acquisition apparatus for a Bluetooth receiver includes: a phase differentiator; a plurality of basic building blocks; a plurality of 1-bit switches; and a correlation computation equation. It features an acquisition circuit implementation with 1-bit correlator hardware shared by access code and EDR synchronization sequence correlation computations.

    摘要翻译： 提供了用于接收蓝牙基本数据速率（BDR）或增强数据速率（EDR）分组的获取方案。 蓝牙接收机的采集装置包括：相位微分器; 多个基本构建块; 多个1位开关; 和相关计算方程。 它具有采用电路实现，具有由访问代码和EDR同步序列相关计算共享的1位相关器硬件。

    Apparatus and method for signal quality measurement on GFSK signals
    2.
    发明授权
    Apparatus and method for signal quality measurement on GFSK signals 有权
    GFSK信号信号质量测量装置及方法

    公开(公告)号：US08243781B2

    公开(公告)日：2012-08-14

    申请号：US12581418

    申请日：2009-10-19

    申请人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

    发明人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

    IPC分类号： H04B17/00 ,  H04L27/14

    CPC分类号： H04L27/22 ,  H04B17/336 ,  H04L25/06 ,  H04L27/2017

    摘要： The present invention discloses an effective apparatus and method to measure the received signal quality for a GFSK modulated signal with (or without) an unknown modulation index. The signal quality measurements are based on the decoded (unknown or known) bits and the trellis of the frequency discriminator output. This trellis is pre-calibrated with a reference Rx. The transmitted modulation index is also accurately estimated in this invention.

    摘要翻译： 本发明公开了一种测量具有（或不具有）未知调制指数的GFSK调制信号的接收信号质量的有效装置和方法。 信号质量测量基于解码（未知或已知）位和鉴频器输出的格架。 该格子用参考Rx进行预校准。 在本发明中也准确地估计发送的调制指数。

    RECEIVERS AND SYMBOL DECODERS THEREOF
    4.
    发明申请
    RECEIVERS AND SYMBOL DECODERS THEREOF 有权
    接收者和符号解码器

    公开(公告)号：US20110142173A1

    公开(公告)日：2011-06-16

    申请号：US12637388

    申请日：2009-12-14

    申请人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

    发明人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

    IPC分类号： H03D3/00

    CPC分类号： H04L27/10 ,  H04L27/227 ,  H04L2027/0067

    摘要： A receiver capable of decoding a symbol based on information on a previous symbol, the symbol and a next symbol in a Gaussian frequency shift keying (GFSK) communication system is provided. The receiver includes a discriminator to generate a symbol for each bit in a bit sequence, a first lookup table (LUT) to store a number of bit patterns and mapping patterns, wherein each of the bit patterns is in the form of a set of consecutive bits in the bit sequence and corresponds to a respective one of the mapping patterns, and wherein each of the mapping patterns includes a set of entries and each of the entries results from an operation of attribute values at a sample time in the waveform of a symbol, a calculator to receive a set of consecutive symbols from the discriminator and calculate a distance value between the set of consecutive symbols and each of the mapping patterns, and a comparator to identify one of the mapping patterns with a minimum distance value by comparing among the distance values from the calculator.

    摘要翻译： 提供一种能够基于高斯频移键控（GFSK）通信系统中的先前符号，符号和下一个符号的信息来解码符号的接收器。 接收机包括用于为比特序列中的每个比特生成符号的鉴别器，用于存储多个比特模式和映射模式的第一查找表（LUT），其中每个比特模式是一组连续的形式 比特序列中的比特并且对应于相应的一个映射模式，并且其中每个映射模式包括一组条目，并且每个条目由来自符号波形中的采样时间的属性值的操作产生 计算器，用于从鉴别器接收一组连续的符号，并计算连续符号集合与每个映射模式之间的距离值;以及比较器，用于通过比较各个映射模式之间的比较来识别具有最小距离值的映射模式之一 计算器的距离值。

    Method and apparatus for phase reference tracking of digital phase modulated signals in the receiver
    7.
    发明授权
    Method and apparatus for phase reference tracking of digital phase modulated signals in the receiver 有权
    接收机中数字相位调制信号相位参考跟踪的方法和装置

    公开(公告)号：US08300736B2

    公开(公告)日：2012-10-30

    申请号：US12581607

    申请日：2009-10-19

    申请人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

    发明人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

    IPC分类号： H04L27/00

    CPC分类号： H04L27/0014 ,  H04L27/2277 ,  H04L2027/0032 ,  H04L2027/0061 ,  H04L2027/0067

    摘要： The present invention discloses a method and apparatus to provide, effectively and robustly, a phase reference in phase-domain for digital phase-modulated signals. Not only the first-order but also higher order PLLs are delineated for robust and fast tracking of frequency errors and time-varying frequency errors between the transmitter and the receiver. This invention can be applied to any phase-modulated signal such as PSK, DPSK, π/4-DPSK, and CPM. The decoders with this invention can achieve close to the performance of coherent detection.Reference[1] D. Divsalar and M. K. Simon, “Multiple-symbols differential detection of MPSK,” IEEE Trans. Commun., vol. 38, pp. 300-308, March 1990.[2] Specification of the Bluetooth System, 2.0+EDR, 4 Nov. 2004.

    摘要翻译： 本发明公开了一种在数字相位调制信号的相域中有效且鲁棒地提供相位参考的方法和装置。 不仅描述了一阶但是更高阶的PLL，以便在发射机和接收机之间的频率误差和时变频率误差的鲁棒和快速跟踪。 本发明可以应用于诸如PSK，DPSK，＆amp; / 4-DPSK和CPM之类的任何相位调制信号。 本发明的解码器可以实现接近相干检测的性能。 参考文献[1] D. Divsalar和M.K.Simon，Multiple-symbols differential detection of MPSK，IEEE Trans。 Commun。，vol。 38，pp。300-308，March 1990. [2]蓝牙系统规范，2.0 + EDR，2004年11月4日。

    Apparatus and method of error vector measurement for digital and multiple-input multiple output IMO communication systems
    8.
    发明授权
    Apparatus and method of error vector measurement for digital and multiple-input multiple output IMO communication systems 有权
    数字和多输入多输出IMO通信系统的误差矢量测量装置和方法

    公开(公告)号：US08036298B2

    公开(公告)日：2011-10-11

    申请号：US11971095

    申请日：2008-01-08

    申请人： Pansop Kim ,  Jeng-Hong Chen

    发明人： Pansop Kim ,  Jeng-Hong Chen

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04L1/0025 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/20 ,  H04L27/38

    摘要： The present invention discloses an effective apparatus and method to measure the received signal quality for digital communication systems by measuring error vector measurement (EVM) with embedded EVM measurement block in receivers. The distinction of the present invention is that the EVMSIG and the EVMDATA are measured in the receiver for the SIGNAL fields and DATA fields, respectively. EVMSIG is a good indicator for one spatial stream and EVMDATA is a good indicator for current multiple streams. The receiver determines the optimum number of spatial data streams for feedback to the transmitter based on the combinations of EVMSIG and EVMDATA with or without other algorithms such as analysis on periodically requested sounding packet. The receiver also determines the optimum modulation and coding schemes for feedback based on the EVM measurements.

    摘要翻译： 本发明公开了一种通过用接收机中的嵌入式EVM测量块测量误差矢量测量（EVM）来测量数字通信系统的接收信号质量的有效装置和方法。 本发明的区别在于分别在信号字段和数据字段的接收机中测量EVMSIG和EVMDATA。 EVMSIG是一个空间流的良好指标，EVMDATA是当前多个流的一个很好的指标。 基于EVMSIG和EVMDATA的组合，接收机确定用于反馈到发射机的空间数据流的最佳数量，其中有或没有其他算法，例如周期性请求的探测分组的分析。 接收机还基于EVM测量确定用于反馈的最佳调制和编码方案。

    METHOD AND APPARATUS FOR PHASE REFERENCE TRACKING OF DIGITAL PHASE MODULATED SIGNALS IN THE RECEIVER
    9.
    发明申请
    METHOD AND APPARATUS FOR PHASE REFERENCE TRACKING OF DIGITAL PHASE MODULATED SIGNALS IN THE RECEIVER 有权
    用于接收器中数字相位调制信号的相位参考跟踪的方法和装置

    公开(公告)号：US20110090991A1

    公开(公告)日：2011-04-21

    申请号：US12581607

    申请日：2009-10-19

    申请人： Pansop KIM ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

    发明人： Pansop KIM ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

    IPC分类号： H04L27/00

    CPC分类号： H04L27/0014 ,  H04L27/2277 ,  H04L2027/0032 ,  H04L2027/0061 ,  H04L2027/0067

    摘要： The present invention discloses a method and apparatus to provide, effectively and robustly, a phase reference in phase-domain for digital phase-modulated signals. Not only the first-order but also higher order PLLs are delineated for robust and fast tracking of frequency errors and time-varying frequency errors between the transmitter and the receiver. This invention can be applied to any phase-modulated signal such as PSK, DPSK, π/4-DPSK, and CPM. The decoders with this invention can achieve close to the performance of coherent detection.Reference [1] D. Divsalar and M. K. Simon, “Multiple-symbols differential detection of MPSK,” IEEE Trans. Commun., vol. 38, pp. 300-308, March 1990. [2] Specification of the Bluetooth System, 2.0+EDR, 4 Nov. 2004

    摘要翻译： 本发明公开了一种在数字相位调制信号的相域中有效且鲁棒地提供相位参考的方法和装置。 不仅描述了一阶但是更高阶的PLL，以便在发射机和接收机之间的频率误差和时变频率误差的鲁棒和快速跟踪。 本发明可以应用于诸如PSK，DPSK，＆amp; / 4-DPSK和CPM之类的任何相位调制信号。 本发明的解码器可以实现接近相干检测的性能。 参考文献[1] D. Divsalar和M.K.Simon，“Multiple-symbols differential detection of MPSK”，IEEE Trans。 Commun。，vol。 38，pp。300-308，March 1990. [2]蓝牙系统规范，2.0 + EDR，2004年11月4日

    Receivers and symbol decoders thereof
    10.
    发明授权
    Receivers and symbol decoders thereof 有权
    接收器及其符号解码器

    公开(公告)号：US08259862B2

    公开(公告)日：2012-09-04

    申请号：US12637388

    申请日：2009-12-14

    申请人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

    发明人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

    IPC分类号： H04L27/14

    CPC分类号： H04L27/10 ,  H04L27/227 ,  H04L2027/0067

    摘要： A receiver capable of decoding a symbol based on information on a previous symbol, the symbol and a next symbol in a Gaussian frequency shift keying (GFSK) communication system is provided. The receiver includes a discriminator to generate a symbol for each bit in a bit sequence, a first lookup table (LUT) to store a number of bit patterns and mapping patterns, wherein each of the bit patterns is in the form of a set of consecutive bits in the bit sequence and corresponds to a respective one of the mapping patterns, and wherein each of the mapping patterns includes a set of entries and each of the entries results from an operation of attribute values at a sample time in the waveform of a symbol, a calculator to receive a set of consecutive symbols from the discriminator and calculate a distance value between the set of consecutive symbols and each of the mapping patterns, and a comparator to identify one of the mapping patterns with a minimum distance value by comparing among the distance values from the calculator.

    摘要翻译： 提供一种能够基于高斯频移键控（GFSK）通信系统中的先前符号，符号和下一个符号的信息来解码符号的接收器。 接收机包括用于为比特序列中的每个比特生成符号的鉴别器，用于存储多个比特模式和映射模式的第一查找表（LUT），其中每个比特模式是一组连续的形式 比特序列中的比特并且对应于相应的一个映射模式，并且其中每个映射模式包括一组条目，并且每个条目由来自符号波形中的采样时间的属性值的操作产生 计算器，用于从鉴别器接收一组连续的符号，并计算连续符号集合与每个映射模式之间的距离值;以及比较器，用于通过比较各个映射模式之间的比较来识别具有最小距离值的映射模式之一 计算器的距离值。