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公开(公告)号：US3781722A
公开(公告)日：1973-12-25
申请号：US3781722D
申请日：1973-03-12
申请人： RCA CORP
发明人： PIERSON P
CPC分类号： H03H17/0009
摘要： A system for providing a digitally variable delay time for electrical signals utilizes a connection of multiple delay line sections each of which contributes to the overall system delay time. Each delay line section comprises first and second selectable transmission lines having different electrical lengths and a different magnitude of attenuation per unit length.
摘要翻译： 用于为电信号提供数字可变延迟时间的系统利用多个延迟线段的连接，每个延迟线段有助于整个系统延迟时间。 每个延迟线部分包括具有不同电长度的第一和第二可选传输线以及每单位长度的不同衰减量。
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公开(公告)号：US3930209A
公开(公告)日：1975-12-30
申请号：US36727573
申请日：1973-06-05
申请人： GEN SIGNAL CORP
CPC分类号： H04B3/40
摘要： A transmission line simulator which is capable of simulating a variety of transmission lines. In addition to simulating the specified characteristics of these transmission lines, the simulator is also capable of simulating a number of random transmission line effects which are especially important to digital data transmission. Among these transmission line effects that can be simulated are phase jitter, frequency shift, amplitude hit and/or drop out, harmonic distortion, phase hit, broad band and impulse noise. Each of these effects can be simulated along with simulating delay and attenuation of one of the transmission lines. The amplitude, frequency and timing of the random effects can be varied by an operator, or, if desired, omitted. As a portion of the simulator disclosed herein, a novel line simulator is employed for simulating specified characteristics which are attenuation and delay. It is made up of a number of operational amplifier filters whose filter characteristics can be electronically switched to simulate a variety of different characteristics such as the different line characteristics available from the common carriers.
摘要翻译： 能够模拟各种传输线路的传输线模拟器。 除了模拟这些传输线的指定特性之外，仿真器还能够模拟对于数字数据传输特别重要的多个随机传输线效应。 可以模拟的这些传输线效应是相位抖动，频移，振幅发生和/或丢失，谐波失真，相位命中，宽带和脉冲噪声。 可以模拟这些效应中的每一个以及模拟传输线之一的延迟和衰减。 随机效应的幅度，频率和时间可以由操作者改变，或者如果需要，可以省略。 作为本文公开的模拟器的一部分，采用新颖的线模拟器来模拟作为衰减和延迟的指定特性。 它由多个运算放大器滤波器组成，其滤波器特性可以进行电子切换，以模拟各种不同的特性，例如从公共载波可用的不同线路特性。
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公开(公告)号：US3621481A
公开(公告)日：1971-11-16
申请号：US3621481D
申请日：1970-05-01
申请人： RAYTHEON CO
CPC分类号： H01P1/182
摘要： Means for control of amplitude, as well as phase, of electromagnetic energy in microwave frequency transmission systems are disclosed incorporating variable energy reflection, as well as absorption load means, in a compact branch transmission line structure coupled by short-slot hybrid junction means to a main transmission line. Adjustment of the load-to-line coupling results in variation of the amplitude of the energy and variation of a terminal reflecting member results in adjustment of the phase of such energy. The adjustments in amplitude, as well as phase, are made independently and have exceedingly high power capabilities in the order of megawatts.
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公开(公告)号：US4161705A
公开(公告)日：1979-07-17
申请号：US861524
申请日：1977-12-19
摘要： The invention involves in-phase power splitting from an input into separate pairs of paralleled input variable circuits which may be linear amplifiers or linear controlled attenuators. The outputs of these circuits feed the input branches of a pair of 180.degree. hybrid circuits, the outputs of those hybrids providing the inputs of a 3 db quadrature coupler. An output of this coupler then provides the overall output which is shifted in phase with respect to the original input as a function of the gain control signal applied differentially between the variable circuits of the aforementioned pairs as the cosine of the desired phase angle in respect to the first pair of circuits and in accordance with the sine of the desired phase angle at the control terminals of the second pair of circuits.
摘要翻译： 本发明涉及从输入到同步的输入可变电路对中的同相功率分离，其可以是线性放大器或线性受控衰减器。 这些电路的输出馈送一对180°混合电路的输入分支，这些混合电路的输出提供3db正交耦合器的输入。 该耦合器的输出然后提供作为在前述对的可变电路之间差分施加的增益控制信号作为相对于原始输入的相位的相位的整体输出，作为所需相位角的余弦相对于 第一对电路，并且根据在第二对电路的控制端子处的期望相位角的正弦。
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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
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。
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公开(公告)号：US3593211A
公开(公告)日：1971-07-13
申请号：US3593211D
申请日：1968-07-15
申请人： NIPPON ELECTRIC CO
摘要： An adjustable attenuation equalizer having multiple independently adjustable loss characteristics in either distinctly separated or overlapping frequency ranges comprises two or more adjustable impedance elements in a single equalizing network. The equalizer of the invention also includes fixed impedance elements, the number of which is equal to the number of transformer networks in the equalizing network.
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公开(公告)号：US4210882A
公开(公告)日：1980-07-01
申请号：US859643
申请日：1977-12-12
申请人： Engel Roza , Johannes O. Voorman
发明人： Engel Roza , Johannes O. Voorman
摘要： A delay network, having a chain of all-pass sections, each comprising two separate branches, a resistive and a capacitive branch, which terminate in amplifiers with negligible signal consumption whose output signals are combined. This enables an analog delay network to be realized in integrated circuit technology.
摘要翻译： 具有全通部分链路的延迟网络，每个链路包括两个分离的分支，电阻和电容分支，其终止于输出信号被组合的具有可忽略的信号消耗的放大器。 这使得可以在集成电路技术中实现模拟延迟网络。
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公开(公告)号：US4059814A
公开(公告)日：1977-11-22
申请号：US589303
申请日：1975-06-23
申请人： Otto G. Folberth
发明人： Otto G. Folberth
IPC分类号： H01P1/00 , H01L21/339 , H01L27/07 , H01L29/00 , H01L29/66 , H01L29/762 , H01L45/02 , H03H7/22 , H03C1/36 , H03C3/22 , H03H7/30
摘要： Controllable semiconductor element with an active semiconductor path controlled by means of conductivity modulation.The structure corresponds to a semiconductor arrangement with applied conductive strips. On the lower side of a semiconductor layer (1), a metal layer (2) is applied. The upper side is covered with an insulation layer (3) on which extends conductive strip (4). At the beginning of conductive strip (4) and beneath at metal layer (2), the input terminals (7) and (8) are provided. At the end of conductive strip (4) and beneath, at metal layer (2), output terminals (11) and (12) are arranged. Besides, at conductive strip (4) and metal layer (2), the control terminals (15) and (16) are applied.If at the two input terminals (7) and (8) an input signal is applied of a frequency which is higher than the dielectric relaxation frequency a corresponding wave propagates from the input along the semiconductive layer (1), and can be derived at the output as an output signal. If simultaneously a control signal is applied to the control terminals (15, 16) whose frequency is much lower than the relaxation frequency additional carriers are generated or deducted in the semiconductive layer (1), on the basis of the known field effect, as a function of the polarity of this control signal and the doping of the semiconductor layer. This means that the conductivity of the semiconductor layer (1) is modulated with the control signal frequency. The conductivity modulation effects a corresponding transit time modulation and/or amplitude modulation of the input signal transmitted via the semiconductor path to the output.
摘要翻译： 具有通过电导率调制控制的有源半导体通路的可控半导体元件。
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公开(公告)号：US3911379A
公开(公告)日：1975-10-07
申请号：US38428973
申请日：1973-07-31
发明人： YAMAGUCHI KIMINORI
IPC分类号： G10K15/12 , H01L27/105 , H03H7/20 , H03H7/22 , H03H7/36
CPC分类号： H01L27/1057 , G10K15/12
摘要： A plurality of signal delay lines are provided each constituted by a number of bucket brigade devices, the number being different from one line to another and consequently the delaying time being different accordingly from one line to another. An audio signal is inputted to the respective delay lines and outputs from the delay lines are admixed to be a reverberated output signal. The delay times are variable in accordance with a transfer clock frequency applied to the bucket brigade devices.
摘要翻译： 提供了多个信号延迟线，每个信号延迟线由多个桶旅装置构成，数量不同于一行到另一个，因此延迟时间相应地从一行到另一个不同。 音频信号被输入到各个延迟线，并且来自延迟线的输出被混合成为混响的输出信号。 延迟时间根据施加到铲斗旅设备的传送时钟频率而变化。
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