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1. 发明授权

US06362903B1 Use of higher order modulation techniques to transmit information on passbands of a dispersion-limited fiber link 有权
标题翻译：使用更高阶调制技术在色散受限光纤链路的通带上传输信息
公开(公告)号：US06362903B1
公开(公告)日：2002-03-26
申请号：US09183183
申请日：1998-10-30
申请人： Ralph Spickermann , Julius Lange
发明人： Ralph Spickermann , Julius Lange
IPC分类号： H04J1402
CPC分类号： H04J14/0298 , H04B10/25137 , H04B10/505 , H04B10/5161 , H04B10/548 , H04J14/02
摘要： Systems and methods employing higher order modulation techniques to transmit information on passbands of a dispersion-limited fiber optic communication link. The present invention transmits data on previously unused passbands of the dispersion-limited optic link, thus increasing the total capacity of the link. Higher order modulated carrier frequencies (M-ary ASK, PSK, QAM, etc.) centered within the higher passbands are transmitted using the present invention. Thus, the present invention combines a multiplicity of encoded carriers into a composite microwave spectrum that is tailored to the passbands of the optical link.
摘要翻译：采用更高阶调制技术的传输信息的系统和方法在色散受限光纤通信链路的通带上传输。本发明发送关于色散受限光链路的先前未使用的通带的数据，从而增加了链路的总容量。使用本发明传输以更高通带为中心的高阶调制载波频率（M-ary ASK，PSK，QAM等）。因此，本发明将多个经编码的载波组合成针对光链路的通带而定制的复合微波频谱。

2. 发明授权

US06597734B1 Passband transversal equalizer 有权
标题翻译：通带横向均衡器
公开(公告)号：US06597734B1
公开(公告)日：2003-07-22
申请号：US09421688
申请日：1999-10-20
申请人： Julius Lange
发明人： Julius Lange
IPC分类号： H03H730
CPC分类号： H04L25/03133
摘要： A passband transversal equalizer that uses a novel partitioning of circuits to improve the dynamic range and minimize unwanted signal interactions. The passband transversal equalizer uses a novel interconnection matrix and may be implemented using GaAs monolithic microwave integrated circuit (MMIC) devices for improved performance. The passband transversal equalizer comprises a divider that splits an input signal along a predetermined number of signal paths. Coaxial delay lines delay the signals propagating along the respective signal paths by a first set of nominal relative delays. A plurality of active divider having push-pull outputs are respectively coupled to the coaxial delay lines. An interconnection matrix respectively couples outputs of the active divider to one of a plurality of complex weighting and combiner circuits. A second plurality of coaxial delay lines delay the signals output by the complex weighting and combiner circuits by a second set of nominal relative delays. A combiner combines the signals to produce an equalized output.
摘要翻译：通带横向均衡器，其使用电路的新颖划分来改善动态范围并最小化不期望的信号相互作用。通带横向均衡器使用新颖的互连矩阵，并且可以使用GaAs单片微波集成电路（MMIC）器件来实现，以提高性能。通带横向均衡器包括沿预定数量的信号路径分割输入信号的分频器。同轴延迟线将沿着相应信号路径传播的信号延迟第一组标称相对延迟。具有推挽输出的多个有源分频器分别耦合到同轴延迟线。互连矩阵分别将有源分频器的输出耦合到多个复加权和组合器电路中的一个。第二多个同轴延迟线将由复加权和组合器电路输出的信号延迟第二组标称相对延迟。组合器组合信号以产生均衡的输出。

3. 发明授权

US5175885A CRT update wideband double balanced mixer 失效
标题翻译： CRT更新宽带双平衡混音器
公开(公告)号：US5175885A
公开(公告)日：1992-12-29
申请号：US584560
申请日：1990-09-18
申请人： Julius Lange , Timothy Halloran
发明人： Julius Lange , Timothy Halloran
IPC分类号： H03D7/12 , H04B1/26
CPC分类号： H04B1/26 , H03D7/125
摘要： An improved wideband double balanced GaAs mixer is presented and includes a plurality of FETs which are operative to couple a plurality of input signals to a diode ring quad wherein the signals are mixed, producing output IF signals composing multiples of the sum and difference frequency of the alternating input signals. In a first embodiment, a first pair of FETs is coupled to an input RF signal, and a second pair of FETs is coupled to an input LO signal. The first pair of FETs is driven in phase by the RF signal, while the second pair of FETs is driven in push-pull by the LO signal. This second pair of FETs is operative to alternately switch opposite sides of the diode ring quad into a conductive state wherein the mixing of the RF and LO signals take place.
摘要翻译：提出了一种改进的宽带双平衡GaAs混频器，并且包括多个FET，其操作以将多个输入信号耦合到二极管环形四边形，其中信号被混合，产生组成输出IF信号的和频和差频的倍数的输出IF信号交替输入信号。在第一实施例中，第一对FET耦合到输入RF信号，并且第二对FET耦合到输入LO信号。第一对FET通过RF信号同相驱动，而第二对FET由推挽式LO信号驱动。该第二对FET可操作地将二极管环四极的相对侧交替地切换成导通状态，其中发生RF和LO信号的混合。

4. 发明授权

US5689210A Active distributed signal sampler 失效
标题翻译：主动分布式信号采样器
公开(公告)号：US5689210A
公开(公告)日：1997-11-18
申请号：US531078
申请日：1995-09-20
申请人： Julius Lange
发明人： Julius Lange
IPC分类号： H03F3/60
CPC分类号： H03F3/607
摘要： A circuit that samples a through signal, while minimizing attenuation, distortion, or other perturbation to the through signal and sampled signal. The present invention provides for an active distributed signal sampler that includes two transmission lines. An input port is coupled to the first transmission line for receiving the through signal, and a through output port is coupled to an output end of the first transmission line for outputting the through signal. The second transmission line is terminated at one end and has a sampled output port at an output end of the second transmission line for outputting the sampled signal. A plurality of high impedance amplifiers bridge between the transmission lines, and a plurality of inductors are coupled between each of the high impedance amplifiers. A plurality of transmission lines may be optionally employed in the second transmission line.
摘要翻译：对通过信号进行采样的电路，同时将通过信号和采样信号的衰减，失真或其他扰动最小化。本发明提供一种包括两条传输线的有源分布式信号采样器。输入端口耦合到第一传输线路，用于接收通过信号，并且通过输出端口耦合到第一传输线路的输出端，用于输出通过信号。第二传输线在一端终止，并且在第二传输线的输出端具有采样输出端口，用于输出采样信号。多个高阻抗放大器桥接在传输线之间，并且多个电感器耦合在每个高阻抗放大器之间。可以在第二传输线中可选地采用多条传输线。

5. 发明授权

US4052671A Adaptive equalizer 失效
标题翻译：自适应均衡器
公开(公告)号：US4052671A
公开(公告)日：1977-10-04
申请号：US735231
申请日：1976-10-26
申请人： Julius Lange
发明人： Julius Lange
IPC分类号： H04L25/03 , H04B1/10
CPC分类号： H04L25/03038
摘要： An adaptive equalizer for improving the quality of digital data contained in an electrical input signal supplied to the equalizer. The equalizer compensates for amplitude and delay distortion affecting the quality of the digital data contained in the electrical input signal. The equalizer includes a delay line having a plurality of discrete time delay elements and in a plurality of taps coupled to the delay elements. A clock circuit provides a plurality of clock signals of identical frequency but different phase, thereby, dividing a pre-selected time interval into a plurality of time-slots. A sequential switch controlled by the clock signals sequentially connects the delay line taps to a quality detector which also has as an input the equalizer output signal. The quality detector generates a signal, during each of the time slots, that represents the quality of the equalizer output signal. The criteria for the equalizer output signal quality is its squareness, and the quality detector output signals are used to control counters which may be incremented or decremented, as required, to improve the equalizer output signal quality. The digital outputs from the counters are supplied to digital-to-analog converters and the resulting analog signals are applied to voltage controlled amplifiers. The signals from the delay line taps are applied to the voltage controlled amplifiers in the equalizer and thereafter are summed to produce the equalizer output signal. The adjustment of the counters either up or down changes the gain of the voltage controlled amplifiers to improve the squareness of the equalizer output signal in a closed-loop manner.The preferred form of the equalizer of the invention is used to improve the quality of two channels of digital data obtained from the demodulation of a transmitted signal that is quadrature-phase-shift keyed. Thus, the two channels of data have identical data bit rates.

6. 发明授权

US5901343A Adaptive cross polarization Interference canceler for use at intermediate frequencies 失效
标题翻译：自适应交叉极化干扰消除器用于中频
公开(公告)号：US5901343A
公开(公告)日：1999-05-04
申请号：US853198
申请日：1997-05-09
申请人： Julius Lange
发明人： Julius Lange
IPC分类号： H04B1/12 , H04B1/10
CPC分类号： H04B1/126
摘要： An intermediate frequency adaptive cross polarization interference canceler for processing an interfering cross polarization signal distorted by dispersion. The canceler has right and left inputs for respectively receiving right and left polarized IF input signals. A plurality of serially coupled complex multiplier and control stages respectively process the right and left polarized signals to provide controlled amounts of coupling between them to cancel cross polarization interference therebetween. A plurality of delay lines add predetermined time shifts to the right and left polarized signals between stages, and which forms a transversal filter having a predetermined number of taps. The canceler outputs right polarized IF output signal and a left polarized IF output signal having substantially no cross polarization interference therebetween. A preferred embodiment of the adaptive cross polarization interference canceler uses a compensating five-tap transversal filter disposed in the cancellation path. A simplified single tap adaptive cross polarization interference canceler may be used if there is no dispersion.
摘要翻译：一种用于处理由色散失真的干扰交叉极化信号的中频自适应交叉极化干扰消除器。消除器具有用于分别接收右和左偏振IF输入信号的左和右输入。多个串联耦合的复数乘法器和控制级分别处理右和左偏振信号，以提供它们之间的受控量的耦合量以消除它们之间的交叉极化干扰。多个延迟线将预定的时移添加到级之间的左右极化信号，并且形成具有预定数量的抽头的横向滤波器。消除器输出右极化IF输出信号和基本上没有交叉极化干扰的左极化IF输出信号。自适应交叉极化干扰消除器的优选实施例使用布置在消除路径中的补偿五抽头横向滤波器。如果没有色散，则可以使用简化的单抽头自适应交叉极化干扰消除器。

7. 发明授权

US4234954A On-line bit error rate estimator 失效
标题翻译：在线误码率估计器
公开(公告)号：US4234954A
公开(公告)日：1980-11-18
申请号：US6054
申请日：1979-01-24
申请人： Julius Lange , Gary L. Wagner
发明人： Julius Lange , Gary L. Wagner
IPC分类号： H04L1/24 , H03K13/32 , G06F11/00
CPC分类号： H04L1/24
摘要： This on-line circuit estimates the bit error rate (BER) of a binary data signal stream in the presence of noise uncorrelated with the signal. For a binary data signal having two states, e.g., plus V and minus V biased around a specified reference level (REF), the circuit counts the number of instances in which the received signal deviates more than 2V from the reference level. This accumulated count gives an accurate estimate of the BER over several orders of magnitude variation of the BER. One embodiment counts just the deviations in a positive direction. This circuit functions independently of any bit pattern and can be used for on-line monitoring without decreasing the information carrying capability of the link. The time required to accumulate a statistically significant sample is the same as for a direct comparison between sent and received bits.
摘要翻译：该在线电路在存在与信号不相关的噪声的情况下估计二进制数据信号流的误码率（BER）。对于具有两个状态的二进制数据信号，例如加上围绕指定参考电平（REF）偏移的V和负V，电路对接收信号偏离参考电平大于2V的实例数进行计数。该累积计数给出了BER几个数量级上BER的精确估计。一个实施例仅计算正方向上的偏差。该电路独立于任何位模式工作，可用于在线监测，而不会降低链路的信息承载能力。积累统计学显着的样本所需的时间与发送位和接收位之间的直接比较相同。

8. 发明授权

US06137833A Programmable transmitter baseband equalizer 失效
标题翻译：可编程发射机基带均衡器
公开(公告)号：US06137833A
公开(公告)日：2000-10-24
申请号：US420980
申请日：1999-10-20
申请人： Julius Lange , Frank Chethik
发明人： Julius Lange , Frank Chethik
IPC分类号： H04L25/03 , H03H7/30 , H03H7/40 , H03H5/159
CPC分类号： H04L25/03343 , H04L2025/03401 , H04L2025/0342 , H04L2025/03509
摘要： A transversal filter equalizer comprising a programmable transmitter baseband equalizer for use in high rate digital transmitters. The programmable transmitter baseband equalizer processes digital data using a 1/2-symbol spaced transversal filter to produce I and Q baseband signals. The 1/2-symbol spaced transversal filter comprises I and Q n-bit wide shift register stages having alternate pairs of I and Q shift register stages driven by opposite phases of an input data clock, multiplying digital-to-analog converters driven by two direct tap weights and two cross tap weights, and I and Q combiners for generating I and Q baseband signals. The I and Q baseband signals are fed to a quadrature modulator that produces the desired constellation.
摘要翻译：一种横向滤波器均衡器，包括用于高速率数字发射机的可编程发射机基带均衡器。可编程发射机基带均衡器使用+ E，fra 1/2 + EE - 符号间隔的横向滤波器处理数字数据，以产生I和Q基带信号。 + E，fra 1/2 + EE符号间隔的横向滤波器包括I和Q n位宽移位寄存器级，具有由输入数据时钟的相反相驱动的I和Q移位寄存器级的交替对，将数字到 - 由两个直接抽头权重和两个交叉抽头加权器驱动的数据转换器，以及产生I和Q基带信号的I和Q组合器。 I和Q基带信号被馈送到产生所需星座的正交调制器。

9. 发明授权

US6046649A Communication system employing paired power amplifiers and drift compensation feedback control loops 有权
标题翻译：采用配对功率放大器和漂移补偿反馈控制回路的通信系统
公开(公告)号：US6046649A
公开(公告)日：2000-04-04
申请号：US200697
申请日：1998-11-27
申请人： Julius Lange
发明人： Julius Lange
IPC分类号： H04L27/36 , H03C3/00
CPC分类号： H03F1/0294 , H04L27/364
摘要： A digital communication system having a paired power amplifier circuit with two closely matched parallel paths including paired power amplifiers, and drift compensation feedback control loops that control the phase and amplitude characteristics of the paired parallel paths. The phase and amplitude characteristics of the paired parallel paths are monitored and matched to each other in real time. Outputs of the paired power amplifiers are summed together in a power combiner having difference and the sum ports. A transmit conditioner includes a lookup table receives a digital input and generates phase angles for each of the parallel paths. The drift compensation feedback control loops correlate signals derived from the difference and the sum ports of the power combiner to control the phase and the amplitude of carriers in the two parallel paths. Statistical and dynamic compensation may be employed to implement the phase compensation.
摘要翻译：具有成对功率放大器电路的数字通信系统具有两个紧密匹配的并行路径，包括成对的功率放大器，以及漂移补偿反馈控制回路，其控制配对并行路径的相位和幅度特性。配对并行路径的相位和幅度特性被实时监控并相互匹配。成对功率放大器的输出在具有差值的和功能合并器中并入到一起。发射调节器包括一个接收数字输入的查找表，并产生每个并行路径的相位角。漂移补偿反馈控制环路将来自差分和功率组合器的和端口的信号相关联，以控制两个并行路径中载波的相位和振幅。可采用统计和动态补偿来实现相位补偿。

10. 发明授权

US5654670A Active distributed signal injector 失效
标题翻译：主动分布式信号注入器
公开(公告)号：US5654670A
公开(公告)日：1997-08-05
申请号：US531976
申请日：1995-09-20
申请人： Julius Lange
发明人： Julius Lange
IPC分类号： H03F3/60
CPC分类号： H03F3/607
摘要： A circuit that injects an auxiliary signal into an existing signal path, thereby adding it to an existing main signal, while minimizing attenuation, distortion, or other perturbation to the main signal. The present invention provides for a active distributed signal injector that includes two transmission lines. An input port is coupled to the first transmission line for receiving the main signal, and a main output port is coupled to an output end of the first transmission line for outputting the main signal. The second transmission line is terminated at an output end and has an injected signal input port at an input end of the second transmission line. A plurality of high impedance amplifiers bridge between the transmission lines, and a plurality of inductors are coupled between each of the high impedance amplifiers. A plurality of transmission lines may be optionally employed in the second transmission line. Optionally, the termination used in the second transmission line may be replaced by a second output port that is used to output the injected signal.
摘要翻译：将辅助信号注入现有信号路径的电路，从而将其添加到现有的主信号，同时最小化对主信号的衰减，失真或其它干扰。本发明提供一种包括两条传输线的有源分布式信号注入器。输入端口耦合到第一传输线，用于接收主信号，并且主输出端口耦合到第一传输线的输出端，用于输出主信号。第二传输线在输出端终止并且在第二传输线的输入端具有注入信号输入端口。多个高阻抗放大器桥接在传输线之间，并且多个电感器耦合在每个高阻抗放大器之间。可以在第二传输线中可选地采用多条传输线。可选地，在第二传输线路中使用的终端可以被用于输出注入信号的第二输出端口替代。

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