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。

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。

公开(公告)号：US20060088115A1

公开(公告)日：2006-04-27

申请号：US11254359

申请日：2005-10-20

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. Information to be transmitted is processed by a convolution encoder to produce encoded bits. The encoded bits are interleaved and mapped to subcarriers. Symbols are created from the subcarriers and the symbols are transmitted so as to increase diversity in time, space and frequency. Circulation transmission in addition to interleaving is used to increase diversity. For example, circulation transmission can be symbol based or subcarrier based.

摘要翻译： 通过增加时间，空间和频率的多样性，提高无线通信系统的性能。 要发送的信息由卷积编码器处理以产生编码比特。 编码比特被交织并映射到子载波。 从子载波产生符号，发送符号以增加时间，空间和频率的分集。 除了交错之外的循环传输用于增加分集。 例如，循环传输可以是基于符号或子载波的。

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。

公开(公告)号：US07773680B2

公开(公告)日：2010-08-10

申请号：US11254359

申请日：2005-10-20

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. Information to be transmitted is processed by a convolution encoder to produce encoded bits. The encoded bits are interleaved and mapped to subcarriers. Symbols are created from the subcarriers and the symbols are transmitted so as to increase diversity in time, space and frequency. Circulation transmission in addition to interleaving is used to increase diversity. For example, circulation transmission can be symbol based or subcarrier based.

摘要翻译： 通过增加时间，空间和频率的多样性，提高无线通信系统的性能。 要发送的信息由卷积编码器处理以产生编码比特。 编码比特被交织并映射到子载波。 从子载波产生符号，发送符号以增加时间，空间和频率的分集。 除了交错之外的循环传输用于增加分集。 例如，循环传输可以是基于符号或子载波的。

公开(公告)号：US20060088114A1

公开(公告)日：2006-04-27

申请号：US11244607

申请日：2005-10-06

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10 ,  H04L27/04

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. In OFDM-based MIMO systems in which the number of antennas M is greater then the number of simultaneously transmitted OFDM symbols N, circulation transmissions according to the present invention improve signal diversity. In symbol-based circulation transmission, N antennas are chosen from the M available antennas to transmit the N OFDM symbols. In subcarrier-based circulation transmission, M output OFDM symbols are composed from the QAM-mappled samples of the N input OFDM symbols. These M output OFDM symbols are then transmitted from the M antennas simultaneously.

公开(公告)号：US08332219B2

公开(公告)日：2012-12-11

申请号：US12847554

申请日：2010-07-30

申请人： Ying-Tsung Lin ,  Yung-Chen Ting ,  Pansop Kim

发明人： Ying-Tsung Lin ,  Yung-Chen Ting ,  Pansop Kim

IPC分类号： G10L11/02

CPC分类号： G10L25/78

摘要： A speech detection method is presented, which includes the following steps. A first voice captured device samples a first signal and a second voice captured device samples a second signal. The first voice captured device is closer to a speech signal source than the second voice captured device. A first energy corresponding to the first signal within an interval is calculated, a second energy corresponding to the second signal within the interval is calculated, and a first ratio is calculated according to the first energy and the second energy. The first ratio is transformed into a second ratio. A threshold value is set. It is determined whether the speech signal source is detected by comparing the second ratio and the threshold value.

摘要翻译： 提出了一种语音检测方法，包括以下步骤。 第一语音捕获设备对第一信号进行采样，并且第二语音捕获设备对第二信号进行采样。 第一语音捕获设备比第二语音捕获设备更靠近语音信号源。 计算与间隔内的第一信号对应的第一能量，计算与间隔内的第二信号对应的第二能量，并根据第一能量和第二能量计算第一比率。 第一比例被转换成第二比率。 设置阈值。 通过比较第二比率和阈值来确定是否检测到语音信号源。

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。

公开(公告)号：US20110090944A1

公开(公告)日：2011-04-21

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。

公开(公告)号：US07593472B2

公开(公告)日：2009-09-22

申请号：US11244607

申请日：2005-10-06

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. In OFDM-based MIMO systems in which the number of antennas M is greater then the number of simultaneously transmitted OFDM symbols N, circulation transmissions according to the present invention improve signal diversity. In symbol-based circulation transmission, N antennas are chosen from the M available antennas to transmit the N OFDM symbols. In subcarrier-based circulation transmission, M output OFDM symbols are composed from the QAM-mappled samples of the N input OFDM symbols. These M output OFDM symbols are then transmitted from the M antennas simultaneously.

摘要翻译： 通过增加时间，空间和频率的多样性，提高无线通信系统的性能。 在天线数M大于同时发送的OFDM符号数N的基于OFDM的MIMO系统中，根据本发明的循环传输提高了信号分集。 在基于符号的循环传输中，从M个可用天线中选择N个天线以发送N个OFDM符号。 在基于子载波的循环传输中，M个输出OFDM符号由N个输入OFDM符号的QAM映射样本组成。 然后从M个天线同时发送这些M个输出OFDM符号。