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1. 发明授权

US4783660A Signal source distortion compensator 失效
标题翻译：信号源失真补偿器
公开(公告)号：US4783660A
公开(公告)日：1988-11-08
申请号：US913072
申请日：1986-09-29
申请人： John N. Pierce
发明人： John N. Pierce
IPC分类号： G01S7/28 , G01S13/50 , G01S13/52 , G01S7/30
CPC分类号： G01S7/28
摘要： A signal processing system in a transmitter/receiver system for reducing undesired amplitude, frequency and/or phase distortions arising due to variations from transmitter pulse to transmitter pulse. A plurality of sequential samples of transmitted pulses are averaged and a plurality of filter coefficients are determined therefrom. The coefficients are used in a plurality of filters which respond to a plurality of sequential samples of received pulses, the filters providing output signals in which such distortions are reduced.
摘要翻译：发射机/接收机系统中的信号处理系统，用于减少由于从发射机脉冲到发射机脉冲的变化而引起的不必要的幅度，频率和/或相位失真。对发射脉冲的多个顺序样本进行平均，并从中确定多个滤波器系数。这些系数用于对接收到的脉冲的多个顺序采样进行响应的多个滤波器，滤波器提供输出信号，其中这种失真被减小。

2. 发明授权

US4805189A Signal processing system 失效
标题翻译：信号处理系统
公开(公告)号：US4805189A
公开(公告)日：1989-02-14
申请号：US829295
申请日：1986-02-13
申请人： Paul F. Mahoney
发明人： Paul F. Mahoney
IPC分类号： H04L27/06 , G01R23/14 , G01R27/02 , H03J3/00 , H04B7/15 , H04B7/212 , H04B17/00 , H04J3/06 , H04J3/14 , H04B3/46
CPC分类号： G01R23/145 , G01R27/02
摘要： A signal processing system for measuring the amplitude and time delay responses of a network over the bandwidth allocated to the network wherein a plurality of subburst signals each in the form of a suppressed-carrier, amplitude-modulated signal, is applied to the network. The signals received from the network are provided in complex form having in-phase and quadrature components. Matched filters respond to such components and the matched filter outputs are processed so as to determine the estimated amplitude and time delay responses of the network at the carrier frequency of the subburst signals over the operating bandwidth of the network.
摘要翻译：一种用于在分配给网络的带宽上测量网络的幅度和时间延迟响应的信号处理系统，其中以网络为单位施加抑制载波幅度调制信号形式的多个次突发信号。从网络接收的信号以具有同相和正交分量的复杂形式提供。匹配的滤波器响应于这样的组件，并且对匹配的滤波器输出进行处理，以便确定网络在网络的工作带宽上的副突发信号的载波频率处的估计的幅度和时间延迟响应。

3. 发明授权

US4112370A Digital communications receiver for dual input signal 失效
标题翻译：数字通信接收机，用于双输入信号
公开(公告)号：US4112370A
公开(公告)日：1978-09-05
申请号：US712147
申请日：1976-08-06
申请人： Peter Monsen
发明人： Peter Monsen
IPC分类号： H04B7/00 , H04B1/12
CPC分类号： H04B7/002
摘要： A dual channel receiver system for receiving polarized signals, which system reduces cross-interference between the signal channels by utilizing adaptive filter equalization means responsive to the input received signals and to error control signals for providing a plurality of weighting signals which are used to combine selectively with the input received signals to reduce the errors, including particularly cross-polarization and noise errors therein. The channels each include decision-directed error signal generating means for providing such error control signals. The system also includes means for preventing system failures wherein both received signals fade simultaneously under which conditions data reversal in the channels could occur and wherein one received signal fades under which condition the same data is produced in both channels.
摘要翻译：一种用于接收偏振信号的双通道接收机系统，该系统通过利用响应于输入接收信号的自适应滤波器均衡装置和用于提供多个加权信号的减少交叉干扰来减少信号通道，这些信号用于选择性地组合具有输入的接收信号以减少误差，包括其中特别是交叉极化和噪声误差。每个通道包括用于提供这种错误控制信号的决策导向误差信号产生装置。该系统还包括用于防止系统故障的装置，其中两个接收信号同时衰落，在哪个条件下可能发生信道中的数据反转，并且其中一个接收到的信号在哪个条件下在两个信道中产生相同的数据。

4. 发明授权

US4851853A Signal source distortion compensator 失效
标题翻译：信号源失真补偿器
公开(公告)号：US4851853A
公开(公告)日：1989-07-25
申请号：US154484
申请日：1988-02-05
申请人： Paul F. Mahoney
发明人： Paul F. Mahoney
IPC分类号： G01S7/288
CPC分类号： G01S7/288
摘要： This invention relates generally to signal processing techniques for removing or reducing the effects of instabilities in pulsed signal sources, as in phase echo systems using a pulsed signal transmitter source, and, more particularly, to a technique for compensating for the varying amplitude, frequency and/or phase characteristics of the signal source pulses during operation.
摘要翻译：本发明一般涉及用于去除或减少脉冲信号源中的不稳定性的影响的信号处理技术，如在使用脉冲信号发射机源的相位回波系统中，更具体地，涉及用于补偿变化幅度，频率和 /或操作期间信号源脉冲的相位特性。

5. 发明授权

US4694467A Modem for use in multipath communication systems 失效
标题翻译：调制解调器用于多路径通信系统
公开(公告)号：US4694467A
公开(公告)日：1987-09-15
申请号：US881611
申请日：1986-07-03
申请人： Shou Y. Mui
发明人： Shou Y. Mui
IPC分类号： H04L27/12 , H04B1/707 , H04L1/00 , H04L27/14 , H04B7/00
CPC分类号： H04B1/707 , H04L1/0071
摘要： A modem in which the transmitter uses spectrum spreading techniques applied to sequentially supplied input bits, a first group thereof having one spread spectrum sequence characteristic and a second group thereof having a different spread spectrum sequence characteristic, the spread spectrum bits being modulated and transmitted. The receiver generates complex samples of the received modulated signal at a baseband frequency and uses a detector for providing signal samples of the complex samples which are time delayed relative to each other. A selected number of the time delayed samples are de-spread and demodulated and the de-spread and demodulated samples are then combined to form a demodulated receiver output signal.
摘要翻译：一种调制解调器，其中发射机使用应用于顺序提供的输入比特的频谱扩展技术，其具有一个扩展频谱序列特征的第一组和具有不同扩展频谱序列特征的第二组，调制和发射扩频比特。接收器以基带频率产生接收的调制信号的复样本，并使用检测器来提供相对于彼此延时的复杂样本的信号样本。选择数量的时间延迟样本被解扩和解调，然后将解扩和解调样本组合以形成解调接收器输出信号。

6. 发明授权

US4468804A Speech enhancement techniques 失效
标题翻译：语音增强技术
公开(公告)号：US4468804A
公开(公告)日：1984-08-28
申请号：US352958
申请日：1982-02-26
申请人： James M. Kates , Julian J. Bussgang
发明人： James M. Kates , Julian J. Bussgang
IPC分类号： G10L21/02 , G10L1/00
CPC分类号： G10L21/02
摘要： A method for processing a voiced speech waveform when the periods and amplitudes thereof may be non-uniform so that the intelligibility thereof is adversely affected. In accordance with such method successive portions of the speech waveform are processed so that each portion has a substantially uniform period and the intelligibility thereof is enhanced. In some instances the processing may be such as to provide in addition substantially uniform peak amplitudes in each processed portion. The voiced speech waveform enhancement technique may further be used in conjunction with methods for processing unvoiced speech waveforms so as to enhance the intelligibility thereof.
摘要翻译：当其周期和幅度可能不均匀以便其可懂度受到不利影响时，处理有声语音波形的方法。根据这种方法，处理语音波形的连续部分，使得每个部分具有基本上均匀的周期，并且其可懂度增强。在一些情况下，处理可以是在每个处理部分中提供基本均匀的峰值振幅。有声语音波形增强技术还可以结合用于处理清音语音波形的方法来使用，以增强其清晰度。

7. 发明授权

US4418319A Signal processing product circuitry 失效
标题翻译：信号处理产品电路
公开(公告)号：US4418319A
公开(公告)日：1983-11-29
申请号：US396047
申请日：1982-07-07
申请人： Paul F. Mahoney , Jerrold L. Bonn
发明人： Paul F. Mahoney , Jerrold L. Bonn
IPC分类号： H03C1/58 , H03K3/26 , G06G7/16
CPC分类号： H03C1/58
摘要： Signal processing circuitry, preferably for use in multiplying two input signals, one at RF frequency and one at baseband frequency, which includes at least a basic four branch bridge circuit having a diode connected in each branch in a generally symmetrical four branch circuit configuration using a single bias supply and including a trimming resistor in at least one branch for controlling the current through the diodes in such branch so that the characteristics of the diodes in all branches can be matched over substantially the complete range of control current values therefor.
摘要翻译：信号处理电路，优选地用于乘以两个输入信号，一个在RF频率上，一个在基带频率处，其包括至少一个基本四分支桥式电路，其具有以大致对称的四分支电路配置在每个分支中连接的二极管，其使用单个偏置电源并且在至少一个分支中包括微调电阻器，用于控制通过该分支中的二极管的电流，使得所有分支中的二极管的特性可以在基本上在其控制电流值的完全范围内匹配。

8. 发明授权

US4328585A Fast adapting fading channel equalizer 失效
标题翻译：快速适应衰落信道均衡器
公开(公告)号：US4328585A
公开(公告)日：1982-05-04
申请号：US136543
申请日：1980-04-02
申请人： Peter Monsen
发明人： Peter Monsen
IPC分类号： H04B7/015 , H04B7/08 , H03K5/159
CPC分类号： H04B7/0851 , H04B7/015
摘要： A receiver system for processing diversity channel signals to substantially eliminate future and past intersymbol interference (ISI) in received signals which have been transmitted through a time-varying frequency selective transmission medium. The system includes lattice filter means which provide forward error residual signals which are used for generating uncorrelated adaptive weighting signals which eliminate future ISI and decision feedback circuitry which provide uncorrelated adaptive weighting signals which eliminate past ISI.
摘要翻译：一种用于处理分集信道信号的接收机系统，以基本上消除已经通过时变频率选择传输介质传输的接收信号中的未来和过去的符号间干扰（ISI）。该系统包括格子滤波器装置，其提供用于产生不相关的自适应加权信号的前向误差残留信号，其消除未来的ISI和判决反馈电路，其提供消除过去的ISI的不相关的自适应加权信号。

9. 发明授权

US4105958A Large delay spread channel simulator 失效
标题翻译：大延时扩展通道模拟器
公开(公告)号：US4105958A
公开(公告)日：1978-08-08
申请号：US654511
申请日：1976-02-02
申请人： John N. Pierce , Steen A. Parl
发明人： John N. Pierce , Steen A. Parl
IPC分类号： H04B17/00 , H03H7/14 , H03H7/22 , H03H7/28 , H03H7/30
CPC分类号： H04B17/0087
摘要： An apparatus for simulating the characteristics of a signal channel which uses two or more cascaded delay lines each of which in one embodiment has a single input and a plurality of tapped outputs. The tapped output signals from each delay line are each multiplied by randomly characterized signals and the multiplied signals are combined to supply an input signal to the next succeeding delay line. The input signal to the first of the cascaded delay lines is the channel input signal and the output of the last of the cascaded delay lines is the simulated channel output signal. The randomly characterized signals associated with all but one of the delay lines may be signals having random polarities or having random phases while the randomly characterized signals associated with the remaining one of the delay lines has Gaussian characteristics. Appropriate control of the amplitude of the Gaussian characterized signals permits an approximation to be made of the energy distribution of the signal channel which is being simulated.
摘要翻译：一种用于模拟使用两个或多个级联延迟线的信号通道的特性的装置，每个延迟线在一个实施例中具有单个输入和多个抽头输出。来自每个延迟线的抽头输出信号各自乘以随机表征的信号，并且相乘的信号被组合以将输入信号提供给下一个后续延迟线。到第一级联延迟线的输入信号是通道输入信号，并且最后级联延迟线的输出是模拟通道输出信号。与除了一个延迟线之外的所有信号相关联的随机表征的信号可以是具有随机极性或具有随机相位的信号，而与剩余的延迟线相关联的随机特征信号具有高斯特性。对高斯特征信号的幅度的适当控制允许对正在被模拟的信号信道的能量分布进行近似。

10. 发明授权

US4006353A Signal multiplier devices 失效
标题翻译：信号倍增器装置
公开(公告)号：US4006353A
公开(公告)日：1977-02-01
申请号：US634051
申请日：1975-11-21
申请人： John N. Pierce
发明人： John N. Pierce
IPC分类号： G06G7/161 , G06G7/16
CPC分类号： G06G7/161
摘要： A signal multiplier for multiplying first and second input signals each having time-varying amplitudes and relatively wide bandwidths in which a first input signal is added to at least one sinusoidal reference signal having an amplitude larger than that of the first input signal. The amplitude of the signal so produced is limited and the limited amplitude signal is multiplied by the second input signal to produce an unfiltered signal. The signal components thereof having undesired frequency spectra are then filtered to produce a signal proportional to the product of the first and second input signals.
摘要翻译：一种信号乘法器，用于将第一和第二输入信号相乘，每个输入信号具有时变幅度和相对宽的带宽，其中将第一输入信号添加到具有大于第一输入信号幅度的至少一个正弦参考信号。所产生的信号的幅度受到限制，并且限幅信号乘以第二输入信号以产生未滤波的信号。然后对其具有不期望的频谱的信号分量进行滤波，以产生与第一和第二输入信号的乘积成比例的信号。

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