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1. 发明授权

US5251233A Apparatus and method for equalizing a corrupted signal in a receiver 失效
标题翻译：用于均衡接收机中损坏的信号的装置和方法
公开(公告)号：US5251233A
公开(公告)日：1993-10-05
申请号：US630922
申请日：1990-12-20
申请人： Gerald P. Labedz , Michael D. Kotzin , Joseph J. Schuler
发明人： Gerald P. Labedz , Michael D. Kotzin , Joseph J. Schuler
IPC分类号： H04B1/10 , H04B7/005 , H04L25/02 , H04L25/03 , H04L25/30 , H04L27/01 , H04L27/38 , H03H7/30
CPC分类号： H04L25/03299 , H04L25/0218 , H04L25/0228
摘要： An equalization system for equalizing a corrupted signal is disclosed. The equalization system includes a complex matched filter (400) and a maximum likelihood sequence estimator (MLSE) (405) for removing the effects of phase shift, amplitude variations, intersymbol interference, etc. resulting from multi-pathing and noise contributed by the receiver front end. The system estimates a correlation signal C(t) (505) and synchronizes C(t) 505 to maximize its energy as seen on the taps of the complex matched filter (400). Taps having amplitude coefficients below a predetermined threshold are set to zero to produce a modified CIR estimate. The modified CIR estimate which has had the effects of noise virtually eliminated, is then used to construct the complex matched filter (400) and is also used as input to the MLSE (405) to produce a better equalized data signal.
摘要翻译：公开了一种用于均衡损坏信号的均衡系统。均衡系统包括复数匹配滤波器（400）和最大似然序列估计器（MLSE）（405），用于消除由接收机所贡献的多路径和噪声产生的相移，幅度变化，符号间干扰等的影响前端。系统估计相关信号C（t）（505）并使C（t）505同步以使复合匹配滤波器（400）的抽头上看到的能量最大化。具有低于预定阈值的幅度系数的抽头被设置为零以产生经修改的CIR估计。然后，使用已经具有噪声影响的修正的CIR估计来构造复匹配滤波器（400），并且还用作MLSE（405）的输入以产生更好的均衡数据信号。

2. 发明授权

US5031193A Method and apparatus for diversity reception of time-dispersed signals 失效
标题翻译：用于分集接收时间分散信号的方法和装置
公开(公告)号：US5031193A
公开(公告)日：1991-07-09
申请号：US435650
申请日：1989-11-13
申请人： Frederick G. Atkinson , Gerald P. Labedz , Duane C. Rabe , Joseph J. Schuler , Alton P. Werronen
发明人： Frederick G. Atkinson , Gerald P. Labedz , Duane C. Rabe , Joseph J. Schuler , Alton P. Werronen
IPC分类号： H04B7/08 , H04L1/06
CPC分类号： H04B7/0845 , H04L1/06 , H04B7/084 , H04B7/0857 , H04B7/0888
摘要： A method and appartus for diversity reception in a communication system wherein at least a dual branch receiver is provided with a stored replica of expected reference information that is correlated with the received time-dispersed signals to obtain an estimate of the transmission channel's impulse response as seen by each branch, and determine, among other things, phase error between the branch local oscillators and the time-dispersed signals. Matched filters are constructed which then coherently align the time-dispersed signals from each branch with that branch's local oscillator, also constituting the first part of the equalization. The diversity processing stage may perform bit by bit selection on the re-aligned signals, maximal ratio combining of the re-aligned signals, or equal gain combining of the re-aligned signals, following each by a sequence estimation which uses similarly selected or combined channel distortion compensation parameters to complete the equalization process on the new signal. In digital modulated carrier systems, providing expected reference information eliminates the neeed for carrier recovery feedback for each branch while performing part of the equalization process.

3. 发明授权

US4829543A Phase-coherent TDMA quadrature receiver for multipath fading channels 失效
标题翻译：用于多径衰落信道的相位相干TDMA正交接收机
公开(公告)号：US4829543A
公开(公告)日：1989-05-09
申请号：US128976
申请日：1987-12-04
申请人： David E. Borth , Chih-Fei Wang , Duane C. Rabe , Gerald P. Labedz
发明人： David E. Borth , Chih-Fei Wang , Duane C. Rabe , Gerald P. Labedz
IPC分类号： H04L27/22 , H04B7/26 , H04J3/00 , H04L7/04
CPC分类号： H04W56/0085 , H04L7/042
摘要： A method and apparatus for phase-coherently demodulating a multipath-impaired time division multiple access QPSK data timeslot is disclosed. A quadrature separator generates multipath-impaired intermediate signals which, during a predetermined synchronizing sequence for the timeslot, are applied to a pair of synchronizing correlators to generate quadrature multipath profiles. These profiles then are used to modify subsequently received QPSK timeslot signals at the separator outputs to coherently construct multipath compensated I and Q channel data.

4. 发明授权

US5363412A Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization 失效
标题翻译：使用滤波相关同步的自适应最大似然序列估计方法和装置
公开(公告)号：US5363412A
公开(公告)日：1994-11-08
申请号：US998063
申请日：1992-12-28
申请人： Robert T. Love , Gerald P. Labedz , Kevin L. Baum
发明人： Robert T. Love , Gerald P. Labedz , Kevin L. Baum
IPC分类号： H04L27/00 , H03H15/00 , H03H17/00 , H03H21/00 , H03M13/23 , H03M13/41 , H04B1/10 , H04B3/04 , H04B7/005 , H04L1/00 , H04L7/00 , H04L25/03 , H04L27/06 , H03M13/12
CPC分类号： H03M13/6331 , H03M13/41 , H04L25/03178 , H04L2025/03547 , H04L25/03292
摘要： A method and apparatus are provided for maximum likelihood sequence estimation. The method and apparatus includes a first maximum likelihood sequence estimator signal path for flat fading and an at least second maximum likelihood sequence estimator signal path for other than flat fading. The method and apparatus for further includes selecting the signal path with a least relative magnitude mean square error.
摘要翻译：提供了用于最大似然序列估计的方法和装置。该方法和装置包括用于平坦衰落的第一最大似然序列估计器信号路径和除平坦衰落以外的至少第二最大似然序列估计器信号路径。该方法和装置还包括以最小相对幅度均方误差选择信号路径。

5. 发明授权

US5271042A Soft decision decoding with channel equalization 失效
标题翻译：具有信道均衡的软判决解码
公开(公告)号：US5271042A
公开(公告)日：1993-12-14
申请号：US422177
申请日：1989-10-13
申请人： David F. Borth , Gerald P. Labedz , Phillip D. Rasky
发明人： David F. Borth , Gerald P. Labedz , Phillip D. Rasky
IPC分类号： H04L25/08 , H04L25/03 , H04L27/00 , H04L27/01 , H04L1/00
CPC分类号： H04L25/03318
摘要： In a communications network having time-dispersed signals, there is provided a mechanism for soft decision decoding. It comprises: radio reception of a time-dispersed signal, at least partly equalizing those time-dispersal effects, recovering information contained in the signal, multiplying with that recovered information the absolute value of that at-least-partly-equalized signal (scaled by a number derived from channel conditions over a time during which at least part of the information to be recovered is distributed), and error-correcting the multiplied information by a Viterbi algorithm channel decoding scheme of error correction. Accordingly, soft decision information is generated from within the equalization process itself.
摘要翻译：在具有时间分散信号的通信网络中，提供了一种用于软判决解码的机制。它包括：时分散信号的无线电接收，至少部分地均衡这些时间分散效应，恢复信号中包含的信息，将该恢复信息与该至少部分均衡信号的绝对值相乘（由在一段时间内从信道条件导出要被恢复的信息的至少部分被分发的数量），以及通过纠错的维特比算法信道解码方案对乘法信息进行纠错。因此，在均衡处理本身内产生软决策信息。

6. 发明授权

US4654867A Cellular voice and data radiotelephone system 失效
标题翻译：蜂窝语音和数据无线电话系统
公开(公告)号：US4654867A
公开(公告)日：1987-03-31
申请号：US894387
申请日：1986-08-11
申请人： Gerald P. Labedz , Jeffrey D. Bonta , Dennis R. Schaeffer , Daniel F. Tell
发明人： Gerald P. Labedz , Jeffrey D. Bonta , Dennis R. Schaeffer , Daniel F. Tell
IPC分类号： H04B7/26 , H04B7/00 , H04W28/06 , H04W36/02 , H04W36/08 , H01Q7/04
CPC分类号： H04W36/0055 , H04W28/06
摘要： A data message transmission system for a cellular radiotelephone system is disclosed. Data to be transmitted is converted into a format compatible with radio transmission prior to transmission. The data is reconverted to its original format following reception. Handoff is accomplished by halting the data transmission prior to handoff and resuming data transmission after handoff. Call supervision occurs via busy-idle bit coding.
摘要翻译：公开了一种用于蜂窝无线电话系统的数据消息传输系统。要传输的数据在传输之前被转换成与无线电传输兼容的格式。接收后，数据将重新转换为原始格式。切换通过在切换之前停止数据传输并在切换之后恢复数据传输来实现。通过忙闲空闲位编码进行呼叫监控。

7. 发明授权

US5638375A AGC isolation of information in TDMA systems 失效
标题翻译： AGC系统中信号的AGC隔离
公开(公告)号：US5638375A
公开(公告)日：1997-06-10
申请号：US277724
申请日：1988-11-30
申请人： Gregory J. Dettro , Gerald P. Labedz , Frederick G. Atkinson
发明人： Gregory J. Dettro , Gerald P. Labedz , Frederick G. Atkinson
IPC分类号： H04J3/00 , H03G3/20 , H04J3/10 , H04J3/14 , H04J3/06
CPC分类号： H03G3/3078 , H04J3/10
摘要： In a communications system having transmissions containing certain information-of-interest at predetermined intervals in the transmission, there is provided a method for isolating and processing that information-of-interest. The method comprises sensing the start of a transmission and isolating for processing as the information-of-interest, the information received about instant(s) predeterminally removed in time from the sensed start of transmission. Thus, the information-of-interest is isolated principally on the basis of elapsed time.The method for isolating and processing that information-of-interest is further characterized by sensing the start of a transmission from the received signal power of the transmission exceeding a predetermined threshold; AGCing the transmission and attenuating the AGC'd transmission from a maximum level to a desired level before the information-of-interest is expected to arrive; isolating for processing as the information-of-interest, the information received about instant(s) predeterminally removed in time from the sensed start of transmission, by timing the expected interval between the instant that the start of the transmission is sensed and the predetermined instant that the information-in-interest should arrive (whereby the information-of-interest is isolated principally on the basis of elapsed time); tagging the information isolated about that instant for processing; and beginning processing with information just preceeding the isolated information (whereby the reliability of the information detection is enhanced by one-to-several bits).
摘要翻译：在具有在传输中以预定间隔包含某些感兴趣的信息的传输的通信系统中，提供了一种用于隔离和处理该感兴趣的信息的方法。该方法包括：感测开始传输并隔离用于处理的信息作为感兴趣的信息，从感测的传输开始在时间上预先从移动中接收关于即时的信息。因此，感兴趣的信息主要是基于经过的时间来隔离。用于隔离和处理该感兴趣的信息的方法进一步的特征在于：从传输的接收信号功率超过预定阈值来检测传输的开始; 在感兴趣的信息预期到达之前，AGC发送和衰减AGC的传输从最大级别到期望的级别; 隔离以作为感兴趣的信息进行处理，通过定时检测到感测到发送开始的时刻与预定时刻之间的期望间隔，接收关于从感测到的发送开始在时间上预先去除的即时的信息感兴趣的信息应该到达（主要是基于经过的时间隔离利益信息）; 标记关于该时刻分离的信息进行处理; 并且开始处理刚刚在隔离信息之前的信息（由此信息检测的可靠性被增加一到几位）。

8. 发明授权

US4797947A Microcellular communications system using macrodiversity 失效
标题翻译：微蜂窝通信系统使用宏分集
公开(公告)号：US4797947A
公开(公告)日：1989-01-10
申请号：US44920
申请日：1987-05-01
申请人： Gerald P. Labedz
发明人： Gerald P. Labedz
IPC分类号： H04B7/26 , H04B7/02 , H04W36/18 , H04W36/30 , H04W72/08 , H04M11/00 , H04Q7/00
CPC分类号： H04W36/30 , H04B7/022 , H04W36/18 , H04W72/08
摘要： A cellular system employing time division messages transmitted from a plurality of radiators in each cell is disclosed. A first electromagnetic signal at a particular frequency is transmitted during one time slot from one of the plurality of radiators. A second electromagnetic signal at the same frequency is transmitted during another time slot from a second one of the plurality of radiators. A remote unit selects the best electromagnetic signal and communicates the selection to a cell controller, which selects a third time slot for transmission of a message from the radiator transmitting the best electromagnetic signal.

9. 发明授权

US4302817A Digital Pseudo continuous tone detector 失效
标题翻译：数字伪连续音检测器
公开(公告)号：US4302817A
公开(公告)日：1981-11-24
申请号：US121563
申请日：1980-02-14
申请人： Gerald P. Labedz
发明人： Gerald P. Labedz
IPC分类号： H03H17/00 , G06F17/10 , G06F17/15 , H03D3/00 , H03G3/00 , H04W88/02 , G06F15/31
CPC分类号： H04W88/027 , H03D3/00 , H03G3/005
摘要： Method and apparatus for sampling input signals of different frequencies and providing a detect signal when the input frequency has a predetermined value suitable for use as a tone decoder for continuous tone controlled squelch systems. The method utilizes digital pseudo continuous correlation tone detection, and includes sample matrix limiting to provide rapid reverse burst turnoff, as well as background detection to avoid adjacent channel reverse burst turnoff falsing.
摘要翻译：当输入频率具有适合用作连续色调控制静噪系统的色调解码器的预定值时，对不同频率的输入信号进行采样并提供检测信号的方法和装置。该方法利用数字伪连续相关色调检测，并包括采样矩阵限制，提供快速的反向脉冲串关闭，以及背景检测，避免相邻信道反向脉冲串关闭的伪造。

10. 发明授权

US07689228B2 Method and apparatus for providing in-band wireless backhaul 有权
标题翻译：提供带内无线回程的方法和装置
公开(公告)号：US07689228B2
公开(公告)日：2010-03-30
申请号：US11434312
申请日：2006-05-15
申请人： Gerald P. Labedz
发明人： Gerald P. Labedz
IPC分类号： H04Q7/20
CPC分类号： H04W16/24 , H04W88/08 , H04W92/20
摘要： Various embodiments are described to address the need for providing wireless backhaul that may reduce operator startup costs while avoiding some of the drawbacks present in the prior art approaches. Generally expressed, the wireless network equipment (WNE) (121) of a collector cell provides access to a backhaul network (151) to one or more neighboring cells (122) via in-band wireless signaling. Given the frequency bands used by the collector cell WNE for communication with remote units, one portion of each band used for user traffic while another portion of each band is used for backhaul traffic. Having backhaul and user traffic share the assigned frequency bands can eliminate the need to license additional bands for wireless backhaul. Moreover, utilizing a portion of the existing, in-band orthogonal channels may be more spectrally efficient than using a separate radio in the same band.
摘要翻译：描述了各种实施例以满足提供无线回程的需要，其可以降低运营商启动成本，同时避免现有技术方法中存在的一些缺点。通常表示，收集器小区的无线网络设备（WNE）（121）通过带内无线信令提供对一个或多个相邻小区（122）的回程网络（151）的访问。给定收集器单元WNE用于与远程单元通信的频带，用于用户业务的每个频带的一部分，而每个频带的另一部分用于回程业务。具有回程和用户流量共享分配的频带可以消除对无线回程许可附加频带的需要。此外，利用现有的带内正交信道的一部分可能比在相同频带中使用单独的无线电更有光谱效率。

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