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1. 发明授权

US5353306A Tap-weight controller for adaptive matched filter receiver 失效
标题翻译：自适应匹配滤波接收机的分接重量控制器
公开(公告)号：US5353306A
公开(公告)日：1994-10-04
申请号：US997183
申请日：1992-12-28
申请人： Takeshi Yamamoto
发明人： Takeshi Yamamoto
IPC分类号： H03H15/00 , H03H17/00 , H03H21/00 , H04B1/10 , H04B1/12 , H04B3/06 , H04B7/005 , H03H7/30
CPC分类号： H03H21/0018 , H04B7/005 , H04B1/123
摘要： In an adaptive matched filter with a decision feedback equalizer (DFE), a tap-weight controller of the matched filter includes a tapped delay line having a series of delay elements for receiving an incoming digital signal to produce successively delayed signals at successive taps of the delay line so that the signal at the center tap coincides with an output of the DFE. Cross-correlators are associated respectively with tap-weight multipliers of the matched filter. In each cross-correlator, cross-correlation is detected between a digital sample from the DFE and a delayed version of the corresponding digital sample. An average value is taken of the cross-correlation to produce higher significant bits of a tap-weight coefficient for the corresponding tap-weight multiplier. The most significant bit of the output of the higher significant bits is inverted and a group of bits is produced, each having the same binary value as the inverted most significant bit. The group of bits is supplied to the corresponding tap-weight multiplier as lower significant bits of the tap-weight coefficient.
摘要翻译：在具有判决反馈均衡器（DFE）的自适应匹配滤波器中，匹配滤波器的抽头重量控制器包括具有一系列延迟元件的抽头延迟线，用于接收输入数字信号，以在连续的抽头延迟线，使得中心抽头处的信号与DFE的输出一致。交叉相关器分别与匹配滤波器的抽头乘数相关联。在每个互相关器中，在来自DFE的数字样本和对应的数字样本的延迟版本之间检测到互相关。获取互相关的平均值，以产生相应抽头重量乘数的抽头权重系数的较高有效位。较高有效位的输出的最高有效位被反相，产生一组位，每一位具有与反相最高有效位相同的二进制值。该比特组被提供给相应的分接重量乘数，作为抽头加权系数的较低有效位。

2. 发明授权

US08605843B2 Method and apparatus for signal acquisition in OFDM receivers 有权
标题翻译： OFDM接收机信号采集方法及装置
公开(公告)号：US08605843B2
公开(公告)日：2013-12-10
申请号：US12672663
申请日：2008-08-06
申请人： Louis Dupont , Sébastien Joseph Armand Roy
发明人： Louis Dupont , Sébastien Joseph Armand Roy
IPC分类号： H04B7/10
CPC分类号： H03H21/0018 , H04B7/0848 , H04L25/0204 , H04L25/0224 , H04L27/2656 , H04L27/2657 , H04L27/2662 , H04L27/2675 , H04L27/2684
摘要： A method and apparatus for signal acquisition in an OFDM receiver relies on a preamble training sequence to synchronize the receiver in time (e.g. determining the start of a frame) and in frequency (carrier frequency offset compensation). The preamble training sequence has a periodic structure and the method and apparatus perform a cross-correlation technique using a matched filter to achieve time synchronization and/or frequency synchronization and/or channel estimation, the latter being especially useful in multi-antenna receivers for diversity combining purposes. Many advantages derive from performing at least two and preferably all three operations jointly, in terms of latency, hardware complexity, and length of training sequence required to achieve satisfactory convergence on all counts. The periodicity of the training sequence is exploited to reduce considerably the main filter complexity and optionally dynamically adjust carrier offset compensation throughout the filtering process.
摘要翻译：在OFDM接收机中用于信号采集的方法和装置依赖于前导码训练序列来在时间上同步接收机（例如，确定帧的开始）和频率（载波频率偏移补偿）。前导码训练序列具有周期性结构，并且该方法和装置使用匹配滤波器来执行互相关技术以实现时间同步和/或频率同步和/或信道估计，后者在多天线接收机中特别有用，用于分集结合目的根据在所有计数上实现令人满意的收敛所需的延迟，硬件复杂度和训练序列的长度，共同执行至少两个并且优选地全部三个操作的优点。利用训练序列的周期性大大降低了主滤波器的复杂度，并且可选地在整个滤波过程中动态地调整载波偏移补偿。

3. 发明授权

US07706332B2 Method and subscriber unit for performing power control 失效
标题翻译：用于执行功率控制的方法和用户单元
公开(公告)号：US07706332B2
公开(公告)日：2010-04-27
申请号：US11181450
申请日：2005-07-14
申请人： Fatih Ozluturk , Gary Lomp
发明人： Fatih Ozluturk , Gary Lomp
IPC分类号： H04B7/216 , H04B1/00 , H04B7/00
CPC分类号： G06F13/374 , H03H17/0226 , H03H17/06 , H03H21/0018 , H03H2218/06 , H04B1/7075 , H04B1/70752 , H04B1/70753 , H04B1/70755 , H04B1/70758 , H04B1/708 , H04B1/7085 , H04B1/7093 , H04B1/7115 , H04B1/712 , H04B7/2628 , H04B7/2637 , H04B7/264 , H04B2201/70701 , H04B2201/70702 , H04B2201/70703 , H04B2201/70707 , H04B2201/7071 , H04J13/004 , H04J13/10 , H04J13/107 , H04L1/004 , H04L5/1446 , H04L25/0212 , H04L27/206 , H04L27/2332 , H04L2027/003 , H04L2027/0053 , H04W52/08 , H04W52/146 , H04W52/24 , H04W52/26 , H04W52/322 , H04W52/325 , H04W52/343 , H04W52/36 , H04W52/367 , H04W52/44 , H04W52/50 , H04W52/52 , H04W52/54 , H04W52/60 , Y02D10/14
摘要： A system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system, comprises a generator for generating a first long code and a second long code, with each long code having a length of N chips. The first long code is different from the second long code. A transmitter transmits the first long code and the second long code at a first phase angle and at a second phase angle, respectively, on a carrier signal over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I acquisition circuit and a Q acquisition circuit may acquire, in parallel, the first long code and the second long code from the I angle and the Q angle, respectively, of the carrier signal by searching, in parallel, N/2 chips of the first long code and the second long code.
摘要翻译：用于在码分多址（CDMA）系统中使用的用于快速获取扩展码的系统包括用于产生第一长码和第二长码的发生器，每个长码具有N个码片的长度。第一个长代码与第二个长代码不同。发射机通过使用无线电波的通信信道上的载波信号分别以第一相位角和第二相位角发送第一长码和第二长码。第一长码和第二长码可以分别在载波信号上以同相（I）角度和正交相位（Q）角发射。从通信信道，I采集电路和Q采集电路可以并行地通过并行地搜索载波信号的I角度和Q角度的第一长码和第二长码，第一长码的N / 2码片和第二长码。

4. 发明公开

EP0716864A2 Herzschrittmacher mit verbesserter Detektion elektrischer Signale 失效
公开(公告)号：EP0716864A2
公开(公告)日：1996-06-19
申请号：EP95118519.8
申请日：1995-11-24
申请人： Pacesetter AB
发明人： Hauptmann, Werner, Dipl.-Ing.
IPC分类号： A61N1/365 , A61N1/368
CPC分类号： H03H21/0018 , A61N1/3704 , Y10S128/901
摘要： Herzschrittmacher mit verbesserter Detektion elektrischer Signale vorgesehen, mit Mitteln zur Aufnahme intrakardialer Herzsignale, in welchen den zu detektierenden Signalen gewissen Rauschsignale mit einem im allgemeinen farbigen Spektrum überlagert sind, mit Mitteln zur adaptiven, nichtlinearen Rauschfilterung NN/FIR dieser intrakardialen Herzsignale, welche das Spektrum der Rauschsignale in ein im wesentlichen weißes Spektrum überführen, sowie mit Mitteln zur angepaßten Filterung (Matched Filtering) der durch die nichtlineare Rauschfilterung gefilterten Signale durch Korrelation dieser Signale mit einem Signalmuster.
摘要翻译：起搏器包括感测电路，其在电心电图（IKEKG）期间记录心内心脏脉搏。心脏脉冲发出与普通光谱重叠的噪声信号。自适应非线性噪声滤波器将这些心脏脉冲传送到白色频谱，并且匹配滤波器（MF）将这些信号与脉冲模式相关联，并产生用作心脏脉冲的指示符的输出量。

5. 发明公开

EP0716864A3 Herzschrittmacher mit verbesserter Detektion elektrischer Signale 失效
标题翻译：起搏器与改善的电信号的检测
公开(公告)号：EP0716864A3
公开(公告)日：1998-01-21
申请号：EP95118519.8
申请日：1995-11-24
申请人： Pacesetter AB
发明人： Hauptmann, Werner, Dipl.-Ing.
IPC分类号： A61N1/365 , A61N1/368
CPC分类号： H03H21/0018 , A61N1/3704 , Y10S128/901
摘要： Herzschrittmacher mit verbesserter Detektion elektrischer Signale vorgesehen, mit Mitteln zur Aufnahme intrakardialer Herzsignale, in welchen den zu detektierenden Signalen gewissen Rauschsignale mit einem im allgemeinen farbigen Spektrum überlagert sind, mit Mitteln zur adaptiven, nichtlinearen Rauschfilterung NN/FIR dieser intrakardialen Herzsignale, welche das Spektrum der Rauschsignale in ein im wesentlichen weißes Spektrum überführen, sowie mit Mitteln zur angepaßten Filterung (Matched Filtering) der durch die nichtlineare Rauschfilterung gefilterten Signale durch Korrelation dieser Signale mit einem Signalmuster.

6. 发明授权

EP0716864B1 Herzschrittmacher mit verbesserter Detektion elektrischer Signale 失效
标题翻译：起搏器与改善的电信号的检测
公开(公告)号：EP0716864B1
公开(公告)日：2002-04-10
申请号：EP95118519.8
申请日：1995-11-24
申请人： St. Jude Medical AB
发明人： Hauptmann, Werner, Dipl.-Ing.
IPC分类号： A61N1/365 , A61N1/368 , A61B5/0402 , A61B5/0472
CPC分类号： H03H21/0018 , A61N1/3704 , Y10S128/901

7. 发明授权

US07020111B2 System for using rapid acquisition spreading codes for spread-spectrum communications 有权
标题翻译：使用快速采集扩频码进行扩频通信的系统
公开(公告)号：US07020111B2
公开(公告)日：2006-03-28
申请号：US09742990
申请日：2000-12-21
申请人： Fatih M. Ozluturk , Gary R. Lomp
发明人： Fatih M. Ozluturk , Gary R. Lomp
IPC分类号： H04J3/16
CPC分类号： G06F13/374 , H03H17/0226 , H03H17/06 , H03H21/0018 , H03H2218/06 , H04B1/7075 , H04B1/70752 , H04B1/70753 , H04B1/70755 , H04B1/70758 , H04B1/708 , H04B1/7085 , H04B1/7093 , H04B1/7115 , H04B1/712 , H04B7/2628 , H04B7/2637 , H04B7/264 , H04B2201/70701 , H04B2201/70702 , H04B2201/70703 , H04B2201/70707 , H04B2201/7071 , H04J13/004 , H04J13/10 , H04J13/107 , H04L1/004 , H04L5/1446 , H04L25/0212 , H04L27/206 , H04L27/2332 , H04L2027/003 , H04L2027/0053 , H04W52/08 , H04W52/146 , H04W52/24 , H04W52/26 , H04W52/322 , H04W52/325 , H04W52/343 , H04W52/36 , H04W52/367 , H04W52/44 , H04W52/50 , H04W52/52 , H04W52/54 , H04W52/60 , Y02D10/14
摘要： A system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system comprises a generator for generating a first long code and a second long code, with each long code having a length of N chips. The first long code is different from the second long code. A transmitter transmits the first long code and the second long code at a first phase angle and at a second phase angle, respectively, on a carrier signal over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I acquisition circuit and a Q acquisition circuit may acquire, in parallel, the first long code and the second long code from the I angle and the Q angle, respectively, of the carrier signal by searching, in parallel, N/2 chips of the first long code and the second long code.
摘要翻译：在码分多址（CDMA）系统中用于快速获取扩展码的系统包括用于产生第一长码和第二长码的发生器，每个长码具有N个码片的长度。第一个长代码与第二个长代码不同。发射机通过使用无线电波的通信信道上的载波信号分别以第一相位角和第二相位角发送第一长码和第二长码。第一长码和第二长码可以分别在载波信号上以同相（I）角度和正交相位（Q）角发射。从通信信道，I采集电路和Q采集电路可以并行地通过并行地搜索载波信号的I角度和Q角度的第一长码和第二长码，第一长码的N / 2码片和第二长码。

8. 发明申请

US20020021686A1 System for using rapid acquisition spreading codes for spread-spectrum communications 有权
标题翻译：使用快速采集扩频码进行扩频通信的系统
公开(公告)号：US20020021686A1
公开(公告)日：2002-02-21
申请号：US09742990
申请日：2000-12-21
发明人： Fatih M. Ozluturk , Gary R. Lomp
IPC分类号： H04B007/216
CPC分类号： G06F13/374 , H03H17/0226 , H03H17/06 , H03H21/0018 , H03H2218/06 , H04B1/7075 , H04B1/70752 , H04B1/70753 , H04B1/70755 , H04B1/70758 , H04B1/708 , H04B1/7085 , H04B1/7093 , H04B1/7115 , H04B1/712 , H04B7/2628 , H04B7/2637 , H04B7/264 , H04B2201/70701 , H04B2201/70702 , H04B2201/70703 , H04B2201/70707 , H04B2201/7071 , H04J13/004 , H04J13/10 , H04J13/107 , H04L1/004 , H04L5/1446 , H04L25/0212 , H04L27/206 , H04L27/2332 , H04L2027/003 , H04L2027/0053 , H04W52/08 , H04W52/146 , H04W52/24 , H04W52/26 , H04W52/322 , H04W52/325 , H04W52/343 , H04W52/36 , H04W52/367 , H04W52/44 , H04W52/50 , H04W52/52 , H04W52/54 , H04W52/60 , Y02D10/14
摘要： A multiple access, spread-spectrum communication system processes a plurality of information signals received by a radio carrier station over telecommunication lines for simultaneous transmission over a radio frequency channel as a code-division-multiplexed signal to a group of subscriber units. The radio carrier station receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The radio carrier station includes a plurality of CDMA modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a code division multiplexed signal. The RCS includes a system channel controller is coupled to receive a remote call. A radio frequency transmitter is connected to all of the modems to combine the code division multiplexed processed signals with the global pilot code signal to generate a code division multiplexed signal. The transmitter also modulates a carrier signal with the code division multiplexed signal and transmits the modulated carrier signal through a radio frequency communication channel to the subscriber units. Each subscriber unit includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the code division multiplexed signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the radio carrier station and the subscriber units, and system capacity management for maintaining a maximum number of active subscriber units for improved system performance.
摘要翻译：多址，扩频通信系统通过电信线路处理由无线电载波台接收的多个信息信号，以便通过射频信道同时传输作为码分复用信号的一组用户单元。无线电载波台接收对应于电信线信息信号的呼叫请求信号，以及识别用户接收呼叫的用户识别信号。无线电载波台包括多个CDMA调制解调器，其中之一提供全局导频码信号。调制解调器提供与全局导频信号同步的消息代码信号。每个调制解调器将信息信号与消息码信号组合以提供码分复用信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。射频发射机连接到所有调制解调器，以将码分多路复用的处理信号与全局导频码信号组合以产生码分多路复用信号。发射机还利用码分复用信号对载波信号进行调制，并通过射频通信信道将调制载波信号发送给用户单元。每个用户单元包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器对码分多路复用信号进行解扩，并向用户提供解扩信息信号。该系统包括用于维持无线电载波台和用户单元的最小系统发射功率电平的闭环功率控制系统以及用于维持最大数量的活动用户单元以提高系统性能的系统容量管理。

9. 发明授权

US5031195A Fully adaptive modem receiver using whitening matched filtering 失效
标题翻译：全自适应调制解调器接收机采用美白匹配滤波
公开(公告)号：US5031195A
公开(公告)日：1991-07-09
申请号：US361174
申请日：1989-06-05
申请人： Pierre R. Chevillat , Evangelos Eleftheriou
发明人： Pierre R. Chevillat , Evangelos Eleftheriou
IPC分类号： H03H21/00 , H04L25/03
CPC分类号： H04L25/03044 , H03H21/0018
摘要： Fully adaptive modem receiver for data-transmission systems which use trellis-coded modulation (TCM) and comprises an adaptive whitened-matched filter (WMF) and a reduced-state trellis decoder. The WMF consists of an adaptive linear equalizer with fractional-T spaced coefficients, and an adaptive linear predictor. The decoder combines the functions of equalization and TCM decoding. It employs combined intersymbol interference (ISI) and code states which exploit the set-partitioning structure of the underlying TCM code to provide full or reduced-state information about past ISI terms. The decoder branch metric cancels those ISI terms that are not, or are only partially, represented by the trellis states.
摘要翻译：用于使用网格编码调制（TCM）并且包括自适应白化匹配滤波器（WMF）和缩减状态网格解码器的数据传输系统的完全自适应调制解调器接收机。 WMF由具有分数T间隔系数的自适应线性均衡器和自适应线性预测器组成。解码器结合了均衡和TCM解码的功能。它采用组合符号间干扰（ISI）和代码状态，利用底层TCM代码的集合分区结构来提供关于过去ISI术语的完整或简化状态信息。解码器分支度量取消不是或仅部分地由网格状态表示的那些ISI术语。

10. 发明申请

US20110293040A1 METHOD AND APPARATUS FOR SIGNAL ACQUISITION IN OFDM RECEIVERS 有权
标题翻译： OFDM接收机信号采集方法与装置
公开(公告)号：US20110293040A1
公开(公告)日：2011-12-01
申请号：US12672663
申请日：2008-08-06
申请人： Louis Dupont , Sébastien Joseph Armand Roy
发明人： Louis Dupont , Sébastien Joseph Armand Roy
IPC分类号： H04L27/00
CPC分类号： H03H21/0018 , H04B7/0848 , H04L25/0204 , H04L25/0224 , H04L27/2656 , H04L27/2657 , H04L27/2662 , H04L27/2675 , H04L27/2684
摘要： A method and apparatus for signal acquisition in an OFDM receiver relies on a preamble training sequence to synchronize the receiver in time (e.g. determining the start of a frame) and in frequency (carrier frequency offset compensation). The preamble training sequence has a periodic structure and the method and apparatus perform a cross-correlation technique using a matched filter to achieve time synchronization and/or frequency synchronization and/or channel estimation, the latter being especially useful in multi-antenna receivers for diversity combining purposes. Many advantages derive from performing at least two and preferably all three operations jointly, in terms of latency, hardware complexity, and length of training sequence required to achieve satisfactory convergence on all counts. The periodicity of the training sequence is exploited to reduce considerably the main filter complexity and optionally dynamically adjust carrier offset compensation throughout the filtering process, thus improving the quality of all final estimates (carrier frequency offset, time synchronization, and channel).
摘要翻译：在OFDM接收机中用于信号采集的方法和装置依赖于前导码训练序列来在时间上同步接收机（例如，确定帧的开始）和频率（载波频率偏移补偿）。前导码训练序列具有周期性结构，并且该方法和装置使用匹配滤波器来执行互相关技术以实现时间同步和/或频率同步和/或信道估计，后者在多天线接收机中特别有用，用于分集结合目的根据在所有计数上实现令人满意的收敛所需的延迟，硬件复杂度和训练序列的长度，共同执行至少两个并且优选地全部三个操作的优点。利用训练序列的周期性大大降低了主滤波器的复杂度，并且可选地在整个滤波过程中动态调整载波偏移补偿，从而提高了所有最终估计（载波频率偏移，时间同步和信道）的质量。

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