-
公开(公告)号：US4507629A
公开(公告)日：1985-03-26
申请号：US471089
申请日：1983-03-01
申请人： Gilbert H. Frank
发明人： Gilbert H. Frank
CPC分类号： H01P1/185
摘要： A phase shifter utilizing a circulator and electronic switches to change the length of a transmission line is disclosed. More specifically, a section of transmission line terminated in a short circuit is coupled to one port of a circulator. Energy exiting the port is reflected by the short circuited transmission line to introduce a phase delay in the signal. A PIN diode is utilized to provide a switchable short across the transmission line to reduce its electrical length thereby reducing the phase delay.
摘要翻译： 公开了一种利用循环器和电子开关改变传输线长度的移相器。 更具体地，以短路端接的传输线的一部分耦合到循环器的一个端口。 离开端口的能量被短路传输线反射，以在信号中引入相位延迟。 PIN二极管用于在传输线上提供可切换的短路，以减少其电长度，从而减少相位延迟。
-
公开(公告)号：US4414092A
公开(公告)日：1983-11-08
申请号：US368556
申请日：1982-04-15
申请人： Wen-Tong P. Lu , Earl R. Garcia
发明人： Wen-Tong P. Lu , Earl R. Garcia
摘要： Disclosed is an improvement on a method of making an electrode wherein a suspension in a liquid is prepared of a powdered catalyst containing a noble metal, carbon powder and a binder, and the suspension is poured over a carbon substrate dried, compressed and sintered to form a solid catalyst layer bonded to the carbon substrate. The improvement is placing a carbon paper on the catalyst layer prior to compressing. The improved electrode can be used as either a cathode or an anode in a sulfur dioxide depolarized electrolyzer in a process for producing hydrogen from water.
摘要翻译： 公开了一种制备电极的方法的改进，其中液体中的悬浮液由含有贵金属，碳粉和粘合剂的粉末状催化剂制备，将悬浮液倒在干燥，压缩和烧结的碳基体上形成 固定的催化剂层结合到碳基底上。 改进之处是在压缩之前将碳纸放置在催化剂层上。 在从水中生产氢气的方法中，改进的电极可以用作二氧化硫去极化电解器中的阴极或阳极。
-
3.发明授权Numerically controlled oscillator with complex exponential outputs using recursion technique 失效使用递归技术的具有复指数输出的数控振荡器
公开(公告)号：US5517535A
公开(公告)日：1996-05-14
申请号：US322845
申请日：1994-10-13
申请人： Brian W. Kroeger , Jeffrey S. Baird
发明人： Brian W. Kroeger , Jeffrey S. Baird
CPC分类号： G06F1/022 , G06F2101/04
摘要： A numerically controlled oscillator that outputs a complex exponential value (sine and cosine). The numerically controlled oscillator inputs a scalar phase increment and uses the scalar phase increment to approximate a complex exponential phasor increment. A complex multiplier multiplies the exponential increment by an exponential value previously output from the oscillator to yield a multiplication result. A recursive amplitude normalizer, connected to the complex multiplier, normalizes the multiplication result to yield the complex exponential value.
摘要翻译： 输出复数指数值（正弦和余弦）的数控振荡器。 数字振荡器输入标量相位增量，并使用标量相位增量近似复指数相量增量。 复数乘法器将指数增量乘以先前从振荡器输出的指数值，以产生乘法结果。 连接到复数乘法器的递归幅度归一化器对乘法结果进行归一化以产生复指数值。
-
公开(公告)号：US5508594A
公开(公告)日：1996-04-16
申请号：US258628
申请日：1994-06-10
CPC分类号： B60L11/1862 , B60L11/18 , B60L3/00 , B60L7/24 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7258
摘要： A vehicle power controller for a vehicle including a motor that drives the vehicle, a plurality of sensors and a motor controller, wherein the plurality of sensors includes an accelerator sensor for sensing a position of an accelerator pedal and a brake sensor for sensing a position of a brake pedal, and wherein the motor controller controls torque output of the motor. The vehicle power controller includes three components. The first receives signals from the accelerator sensor and the brake sensor. The second converts the signals for the accelerator sensor and the brake sensor into a torque value, and the third outputs the torque value to the motor controller for controlling the torque output of the motor.
摘要翻译： 一种用于车辆的车辆动力控制器，包括驱动车辆的电动机，多个传感器和电动机控制器，其中所述多个传感器包括用于感测加速器踏板的位置的加速器传感器和用于感测 制动踏板，并且其中所述马达控制器控制所述马达的扭矩输出。 车辆功率控制器包括三个部件。 第一个从加速器传感器和制动传感器接收信号。 第二个将加速器传感器和制动器传感器的信号转换为扭矩值，第三个将扭矩值输出到马达控制器，以控制马达的扭矩输出。
-
公开(公告)号：US5481269A
公开(公告)日：1996-01-02
申请号：US250226
申请日：1994-05-27
申请人： Scott A. Imhoff , Martin G. Woolfson , Giora A. Bendor , Guy W. Cheesman, III , James R. Brinsley , Martin M. Morici
发明人： Scott A. Imhoff , Martin G. Woolfson , Giora A. Bendor , Guy W. Cheesman, III , James R. Brinsley , Martin M. Morici
CPC分类号： G06K9/00523 , G01S7/411 , G06F17/14 , G06K9/3241 , G06K9/522
摘要： A classifier employing general frame wavelets for improving target recognition while decreasing computational intensity is disclosed. A wavelet selection means compares a portion of a time dependent input signal from a receiver with a set of sample wavelets, each wavelet being bandpass limited, locally supported, and mean zero, and selects a prototype wavelet resembling the input portion. A resolving means expands the prototype wavelet onto a basis of wavelet functions having variations in scale and delay, and resolves the input signal onto the basis of functions. A regionpass filter identifies a region from a grid of resolved coefficients that contains features of a target from the input signal and discards coefficients outside the region. A separability filter passes select coefficients from a scale band within the identified region where separability among known targets is high. A comparator compares the selected coefficients with an exemplar of known targets to indicate a recognition of the target.
摘要翻译： 公开了一种采用通用帧小波改进目标识别同时降低计算强度的分类器。 小波选择装置将来自接收机的时间相关输入信号的一部分与一组采样小波比较，每个小波被限制带通，局部支持和平均零，并选择类似于输入部分的原型小波。 解析装置将原型小波扩展到具有尺度和延迟变化的小波函数的基础上，并根据功能解析输入信号。 区域通过滤波器从包含来自输入信号的目标特征的分辨系数的网格中识别区域，并且丢弃区域外的系数。 可分离性滤波器从识别的区域中的标度带传递选择系数，其中已知目标之间的可分离性高。 比较器将所选择的系数与已知目标的示例进行比较，以指示目标的识别。
-
6.发明授权Method and apparatus for enhancing signal-to-noise ratio and improving sensitivity and signal detector employing same 失效用于提高信噪比并提高灵敏度的方法和装置以及采用该信号的信号检测器
公开(公告)号：US5463342A
公开(公告)日：1995-10-31
申请号：US125266
申请日：1993-09-30
申请人： Glenn B. Guard
发明人： Glenn B. Guard
摘要： An apparatus and method for enhancing the signal-to-noise ratio of an input signal which divides the input signal into a plurality of divided signals of equal power, introduces a delay into a corresponding one of the plurality of divided signals, mixes together pairs of the plurality of delayed divided signals, and sums the mixed signals. The apparatus and method of the present invention may be employed in a signal detector to improve the sensitivity of the signal detector.
摘要翻译： 一种用于增强将输入信号分成多个等功率的分割信号的输入信号的信噪比的装置和方法，将延迟引入到多个分割信号中的相应一个信号中，将一对 多个延迟分割信号，并对混合信号求和。 本发明的装置和方法可以用在信号检测器中以提高信号检测器的灵敏度。
-
公开(公告)号：US5434578A
公开(公告)日：1995-07-18
申请号：US139674
申请日：1993-10-22
申请人： Roy R. Stehlik
发明人： Roy R. Stehlik
CPC分类号： H01Q3/26
摘要： A system for automatically forming a receive beam being positioned in the direction of a corresponding incoming signal, the system having a known signal corresponding to the incoming signal. The system comprises a plurality, M, of channels, each of the channels collecting the incoming signal and generating a plurality, L, of incoming complex data samples for the incoming signal and a plurality, L, of known complex data samples for the known signal. The system also includes severaly digital beamforming means for forming the receive beam. Each of the digital beamforming means includes means, coupled to the channels, for computing an M by 1 weight vector, W, having several weight elements each corresponding to one of the channels, the computing means including means for solving, for W, the equation, R W=C, where R is an M by M coefficient matrix, an element in the i-th row and the j-th column being an estimate of a value obtained from cross-correlating the incoming complex data sample generated by the i-th channel with the incoming complex data sample of the j-th channel, and where C is an M by 1 constant vector, an element in the i-th row being an estimate of a value obtained from cross-correlating the incoming complex data sample generated by the i-th channel with the known complex data samples. Each of the digital beamforming means further includes multipliers for generating weighted signals, each of the multipliers coupled to a corresponding one of the channels and multiplying one of the weight elements by the incoming complex data samples generated by the corresponding channel, and an adder, coupled to the multipliers, for adding each of the weighted signals.
摘要翻译： 一种用于自动形成接收光束的方式的系统，该接收光束位于对应的输入信号的方向上，该系统具有对应于输入信号的已知信号。 该系统包括多个M个通道，每个通道收集输入信号并产生用于输入信号的多个输入复数数据样本的L个以及用于已知信号的已知复数数据样本的多个L 。 该系统还包括用于形成接收束的几个数字波束成形装置。 数字波束成形装置中的每一个包括耦合到信道的装置，用于计算具有多个权重元素的M乘1权重向量W，每个加权元素对应于一个信道，所述计算装置包括用于对于W求解等式的装置 ，RW = C，其中R是M乘M系数矩阵，第i行和第j列中的元素是从由i系统矩阵生成的输入复数数据样本的相互关联而获得的值的估计， 与第j个信道的输入复数据样本进行通信，其中C是M×1常数向量，第i行中的元素是从输入的复数据样本的互相关中获得的值的估计值 由第i个信道与已知的复杂数据样本产生。 数字波束成形装置中的每一个还包括用于产生加权信号的乘法器，每个乘法器耦合到通道中的相应一个，并且通过由相应通道产生的输入复数数据样本将权重元素之一相乘，并且加法器 到乘法器，用于添加每个加权信号。
-
公开(公告)号：US5340945A
公开(公告)日：1994-08-23
申请号：US70641
申请日：1993-06-02
申请人： Donald F. Gehrs , Louis L. Runge
发明人： Donald F. Gehrs , Louis L. Runge
CPC分类号： H02B1/056
摘要： In an improved panel interior assembly of the type in which elongated bus bars are snap-fit into an insulating support structure a plurality of integrally molded pins are attached to the insulating support structure positioned to extend through holes in a pan to which the insulating support structure is to be attached. These pins are ultrasonically staked to securely hold the insulating support structure and bus bars attached thereto on the pan.
摘要翻译： 在这种类型的改进的面板内部组件中，其中细长的母线卡扣配合到绝缘支撑结构中，多个整体模制的销被附接到绝缘支撑结构，该绝缘支撑结构定位成延伸穿过锅中的绝缘支撑结构 将被附上。 这些销被超声波地放样，以将连接到其上的绝缘支撑结构和母线牢固地保持在盘上。
-
9.发明授权
公开(公告)号：US5335209A
公开(公告)日：1994-08-02
申请号：US57382
申请日：1993-05-06
申请人： Paul E. Jaenke , Larry T. Gingerich
发明人： Paul E. Jaenke , Larry T. Gingerich
CPC分类号： G10K11/002 , G10K11/02 , H04R1/44
摘要： An acoustic sensor and projector module for sonar applications includes a first acoustic transducer element operating as a projector to generate an acoustic beam, and a second acoustic transducer element acting as a hydrophone to sense pressure wave returns. When the second acoustic transducer element operates in a sensing mode, the first acoustic transducer element serves in conjunction with a baffle structure to baffle acoustic signals presented to the hydrophone. Similarly, when the first transducer element operates in a projecting mode to generate an acoustic beam, the second transducer element acts in combination with a baffle structure to baffle acoustic signals emitted by the projector.
摘要翻译： 用于声纳应用的声学传感器和投影仪模块包括用作投影仪以产生声束的第一声学换能器元件，以及用作水听器以感测压力波返回的第二声学换能器元件。 当第二声换能器元件在感测模式下操作时，第一声换能器元件与挡板结构一起起作用以阻挡呈现给水听器的声信号。 类似地，当第一换能器元件以投影模式操作以产生声束时，第二换能器元件与挡板结构组合起来以阻挡由投影仪发射的声信号。
-
公开(公告)号：US5333502A
公开(公告)日：1994-08-02
申请号：US945788
申请日：1992-09-16
IPC分类号： G01N29/032 , G01N29/265 , G01N29/04
CPC分类号： G01N29/032 , G01N29/265 , G01N2291/02416 , G01N2291/02818 , G01N2291/105 , G01N2291/2636 , G01N2291/267 , G01N2291/269
摘要： A method for monitoring the environment of a vessel provides a liquid (18) which may contain particles (20) in a vessel having containment walls (12), where a hollow member (26) such as a thin tube is inserted into the liquid near the containment walls, and the hollow member contains in it a robotic device (34), which can travel within the hollow member and which can emit and receive ultrasonic waves and electromagnetic fields, where both of the ultrasonic waves and electric fields can pass through the hollow member (26) to the containment walls (12), where the device: emits and receives low frequency ultrasonic waves to and from the containment walls (12) and high frequency ultrasonic waves to and from any particles (20), and emits electromagnetic fields to the containment walls (12) or their combination, where absorptions and reflections from the hollow member walls and the containment walls, and any particles present are measured and any current generated in the hollow member walls and the containment wall by the electromagnetic fields are measured, and then any differences are measured to determine flaws (24) in the hollow member and containment walls, and properties of any particles (20) in suspension.
摘要翻译： 用于监测容器环境的方法提供了一种液体（18），其可以在容器内容纳有容器（12）中的颗粒（20），其中诸如细管的中空构件（26）插入液体附近 容纳壁和中空构件包括机器人装置（34），其可在中空构件内行进并且能够发射和接收超声波和电场，其中超声波和电场都可以通过 空心构件（26）连接到容纳壁（12），其中装置：向容纳壁（12）发射和从容纳壁（12）发射低频超声波，并将高频超声波接收到任何颗粒（20）和从任何颗粒（20）发射电磁 （12）或其组合的场地，其中测量来自中空构件壁和容纳壁以及存在的任何颗粒的吸收和反射，以及在中空构件壁中产生的任何电流 并且测量通过电磁场的容纳壁，然后测量任何差异以确定中空构件和容纳壁中的瑕疵（24）以及悬浮液中任何颗粒（20）的性质。
-
-
-
-
-
-
-
-
-
搜索结果
20293 条记录 (耗时 0.038 秒)
