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1. 发明授权

US07113553B2 Low-complexity joint symbol CCK decoder 有权
标题翻译：低复杂度联合符号CCK解码器
公开(公告)号：US07113553B2
公开(公告)日：2006-09-26
申请号：US10382756
申请日：2003-03-05
申请人： Jeng-Hong Chen , Wei-Chung Peng
发明人： Jeng-Hong Chen , Wei-Chung Peng
IPC分类号： H03D3/22 , H03B1/10
CPC分类号： H04L23/02 , H04B1/7105 , H04B1/7113 , H04B1/7115 , H04B1/712 , H04B2001/70935
摘要： A method is provided for mitigating the multipath interference experienced by a present CCK symbol. This method first obtains a set of initial candidates for the present CCK symbol and a set of initial candidates for the next CCK symbol based on the ICI-corrected correlation outputs for the present and next CCK symbols, respectively. The method then obtains, for each of the candidates for the present CCK symbol, first ISI-mitigated correlation outputs where both the ICI due to the present CCK symbol and the ISI due to the next CCK symbol have been corrected. Thereafter, for each of the candidates for the present CCK symbol, and based on the first ISI-mitigated correlation outputs, the method obtains second ISI-mitigated correlation outputs where the ISI due to the previous CCK symbol has also been corrected. The present CCK symbol is then decoded based on the second ISI-mitigated correlation outputs.
摘要翻译：提供了一种用于减轻当前CCK符号经历的多路径干扰的方法。该方法首先分别基于当前和下一个CCK符号的ICI校正的相关输出，获得针对当前CCK符号的一组初始候选和下一个CCK符号的一组初始候选。然后，该方法针对当前CCK符号的每个候选者获得第一ISI减轻的相关输出，其中由于当前CCK符号引起的ICI和由于下一个CCK符号引起的ISI都被校正。此后，对于当前CCK符号的每个候选，并且基于第一ISI减轻的相关输出，该方法获得第二ISI减轻的相关输出，其中由于先前的CCK符号导致的ISI也被校正。然后基于第二ISI减轻的相关输出对当前的CCK符号进行解码。

2. 发明授权

US08259862B2 Receivers and symbol decoders thereof 有权
标题翻译：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。

3. 发明申请

US20110142173A1 RECEIVERS AND SYMBOL DECODERS THEREOF 有权
标题翻译：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。

4. 发明授权

US07200164B2 Packet-based multiplication-free CCK demodulator with a fast multipath interference cipher 有权
标题翻译：基于分组的无乘法CCK解调器具有快速多径干扰密码
公开(公告)号：US07200164B2
公开(公告)日：2007-04-03
申请号：US10289749
申请日：2002-11-07
申请人： Jeng-Hong Chen , Wei-Chung Peng
发明人： Jeng-Hong Chen , Wei-Chung Peng
IPC分类号： H04B1/69
CPC分类号： H04B1/7105 , H04B1/7113 , H04B1/7115 , H04B1/712 , H04B2001/70935 , H04L23/02
摘要： A complementary code keying (CCK) demodulator used in a RAKE receiver receiving CCK symbols in a multipath environment computes multipath interferences (MPIs) required for canceling intra-codeword chip interference (ICI). The algorithmic structure jointly computes the ICI of a plurality of possible codewords. The algorithmic structure is similar to the optimal architecture required for CCK correlation computations. The similarity between these two structures allows for the use of the same hardware at different times to compute MPIs and to compute the CCK correlation of a plurality of possible codewords.
摘要翻译：在接收多路径环境中的CCK符号的RAKE接收机中使用的互补码密钥（CCK）解调器计算消除码内码片干扰（ICI）所需的多径干扰（MPI）。算法结构共同计算多个可能码字的ICI。算法结构类似于CCK相关计算所需的最优架构。这两个结构之间的相似性允许在不同时间使用相同的硬件来计算MPI并计算多个可能码字的CCK相关性。

5. 发明授权

US07161972B2 Method and apparatus for downlink joint detection in a communication system 有权
标题翻译：通信系统中下行链路联合检测的方法和装置
公开(公告)号：US07161972B2
公开(公告)日：2007-01-09
申请号：US10161154
申请日：2002-06-03
申请人： Hoon Huh , Hee-Won Kang , Wei-Chung Peng , Dennis Lai , Jeng-Hong Chen
发明人： Hoon Huh , Hee-Won Kang , Wei-Chung Peng , Dennis Lai , Jeng-Hong Chen
IPC分类号： H04B1/707
CPC分类号： H04L25/03012 , H04L25/0216 , H04L25/0242 , H04L2025/03624
摘要： A ZF joint detection apparatus for a downlink receiver, the apparatus comprising: a channel estimator for estimating a channel impulse response of a multipath fading channel of a received signal; a channel equalizer for estimating a transmission signal by performing channel compensation and removing multipath interference by a deconvolution technique based on the estimated channel impulse response; and a user detector for detecting a symbol-level data sequence transmitted by a specific user by despreading the transmission signal estimated by the channel equalizer with a spreading code for the specific user and a scrambling code.
摘要翻译：一种用于下行链路接收机的ZF联合检测装置，所述装置包括：信道估计器，用于估计接收信号的多径衰落信道的信道脉冲响应; 信道均衡器，用于通过基于估计的信道脉冲响应通过去卷积技术执行信道补偿和去除多径干扰来估计传输信号; 以及用户检测器，用于通过对由特定用户的扩展码解扰由信道均衡器估计的发送信号和扰码来检测由特定用户发送的符号级数据序列。

6. 发明授权

US08509361B2 Simplified acquisition apparatus and method for a Bluetooth receiver 有权
标题翻译：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。

7. 发明授权

US08243781B2 Apparatus and method for signal quality measurement on GFSK signals 有权
标题翻译： 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。

8. 发明申请

US20060088115A1 System and method for providing 3-dimensional joint interleaver and circulation transmissions 有权
标题翻译：提供三维联合交错器和循环传输的系统和方法
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。

9. 发明授权

US08693595B2 Adaptive wireless communication receiver 有权
标题翻译：自适应无线通信接收机
公开(公告)号：US08693595B2
公开(公告)日：2014-04-08
申请号：US13466884
申请日：2012-05-08
申请人： Jeng-Hong Chen , Peng-Sen Chen , Hsiang-Te Ho , Kuang-Hu Huang , Zhi-Qing Huang , Chin-Chang Chang
发明人： Jeng-Hong Chen , Peng-Sen Chen , Hsiang-Te Ho , Kuang-Hu Huang , Zhi-Qing Huang , Chin-Chang Chang
IPC分类号： H04L27/08
CPC分类号： H04B1/109 , H04B2001/1045
摘要： The present invention relates to an adaptive, cost-performance efficient, power-saving apparatus for wireless communication systems, such as but not limited to Bluetooth (BT) receivers, and in particular to a packet-based receiver's decoding algorithm which can detect the presence or absence of the adjacent channel interference (ACI) before the scheduled starting time for receiving a Bluetooth packet, and accordingly set the receiver configurations including the filter's pass-band bandwidth (BW), filter's order, the sampling rate, the number of analog-to-digital-converter (ADC) output bits, and the automatic-gain-control (AGC) algorithm unit to determine the low noise amplifier (LNA) and variable gain amplifier (VGA) settings.
摘要翻译：本发明涉及用于诸如但不限于蓝牙（BT）接收机的无线通信系统的自适应的，性价比高的节能设备，特别涉及一种基于分组的接收机的解码算法，其可以检测存在或者在用于接收蓝牙分组的预定开始时间之前不存在相邻信道干扰（ACI），并且相应地设置包括滤波器的通带带宽（BW），滤波器顺序，采样率，模拟 - 数字转换器（ADC）输出位和自动增益控制（AGC）算法单元来确定低噪声放大器（LNA）和可变增益放大器（VGA）设置。

10. 发明授权

US08437427B2 Arbitrary frequency shifter in communication systems 有权
标题翻译：通信系统中任意移频器
公开(公告)号：US08437427B2
公开(公告)日：2013-05-07
申请号：US12569290
申请日：2009-09-29
申请人： Jeng-Hong Chen
发明人： Jeng-Hong Chen
IPC分类号： H03K9/00 , H04L27/001
CPC分类号： G06F1/022 , G06F1/0342
摘要： This invention describes a programmable, digital implementation to shift an arbitrary frequency, or various frequencies in various communication systems of the original signal in the frequency domain. The correspondent phase accumulation to perform the desired frequency shift per sampling instant is perfectly tracked by counting up or down a simple integer. Several arbitrary frequency shifters with different mathematical models are provided. The correspondent implementations with Look-Up-Tables (LUT) are derived for high-speed implementations without further calculations of the values of the sine and cosine functions every sampling instant. Furthermore, a simple shift-and-add phase rotation is described to replace the four required real multiplications. If the original complex signal contains only one-bit each from real part and imaginary part, a surprisingly simple implementation is derived and disclosed for the overall arbitrary frequency shift operation. Further simplifications are also disclosed to make this invention feasible for high sampling frequencies and small frequency drifts.
摘要翻译：本发明描述了一种可编程的数字实现，以在频域中移动原始信号的各种通信系统中的任意频率或各种频率。通过向上或向下计数一个简单的整数来完美地跟踪每个采样时刻执行所需频移的通讯相位累加。提供了具有不同数学模型的几个任意频率移位器。具有查找表（LUT）的通信实现被导出用于高速实现，而不需要在每个采样时刻进一步计算正弦和余弦函数的值。此外，描述了简单的移位和加法相位旋转来代替四个所需的实数乘法。如果原始复信号仅包含来自实部和虚部的一位，则导出并公开了用于总体任意频移操作的令人惊讶的简单实现。还公开了进一步简化以使本发明对于高采样频率和小的频率漂移是可行的。

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