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51. 发明申请

US20110319044A1 Adaptive cancellation of multi-path interferences 失效
标题翻译：自适应消除多路径干扰
公开(公告)号：US20110319044A1
公开(公告)日：2011-12-29
申请号：US12803455
申请日：2010-06-28
申请人： Gevork George Bornazyan
发明人： Gevork George Bornazyan
IPC分类号： H04B1/10
CPC分类号： H04B1/1081 , H04B1/1036
摘要： A multi-path signal interference cancellation system cancels multiple time delayed signal components of a multi-path interference signal received by a receive antenna and carried on a receiver transmission line of a radio receiver system. The interference cancellation system includes a plurality of adaptive interference canceller circuits, each of which has a synchronous detector, a signal controller and an integrator as essential parts of closed control loops defined by the canceller circuits. The integrator has gain and bandwidth characteristics associated therewith which are adjustable to adjust the gain and bandwidth of each closed control loop. An intensity profile of the multi-path interference signal is generated and stored in a memory. An intensity profile signal from the memory is provided to the integrator of each adaptive interference canceller circuit to adjust the gain and bandwidth of the integrator and the loop in which it is situated to maximize the error detection residual signal-to-noise ratio of each adaptive interference canceller circuit. Each adaptive interference canceller circuit generates a cancellation signal from which a synthesized cancellation signal is generated and effectively injected onto the receiver transmission line to cancel the multiple time delayed signal components of the multi-path interference signal carried thereon so that the radio receiver of the radio receiver system only receives a desired signal.
摘要翻译：多径信号干扰消除系统消除由接收天线接收并在无线电接收机系统的接收机传输线上承载的多径干扰信号的多个时间延迟的信号分量。干扰消除系统包括多个自适应干扰消除器电路，每个自适应干扰消除器电路具有同步检测器，信号控制器和积分器，作为由消除器电路定义的闭合控制回路的重要部分。积分器具有与其相关联的增益和带宽特性，其可调节以调节每个闭合控制回路的增益和带宽。产生多路径干扰信号的强度分布并将其存储在存储器中。来自存储器的强度分布信号被提供给每个自适应干扰消除电路的积分器，以调整积分器及其所在的环路的增益和带宽，以使每个自适应滤波器的误差检测残差信噪比最大化干扰消除电路。每个自适应干扰消除器电路产生消除信号，从该信号产生合成消除信号并有效地注入到接收机传输线上以消除其上承载的多径干扰信号的多个时间延迟的信号分量，使得无线电接收机接收机系统仅接收期望的信号。

52. 发明授权

US4851850A Priority mapper for initiation of radar tracking of projectiles 失效
标题翻译：启动雷达追踪射弹的优先级映射器
公开(公告)号：US4851850A
公开(公告)日：1989-07-25
申请号：US652982
申请日：1984-09-21
申请人： John M. Milan , George W. Grantham
发明人： John M. Milan , George W. Grantham
IPC分类号： G01S13/72
CPC分类号： G01S13/72
摘要： Electronic priority map storage and control for prioritizing radar detections for fire control or monitoring purposes relative to batteries of mortars or artillery or other projectile sources. Use of a priority map to increase probability of location of at least one weapon in each battery is desired. The theory is based upon the premise that all guns in a battery are firing at the same target and, consequently, all projectiles from a battery will be detected within a relatively small area. By distributing track initiations over a large area of detection, the probability of tracking projectiles from all batteries is increased. The use of the priority map to accomplish this function is made in order to save time in a general purpose data processing computer employed additionally for other functions. A group of priority map cells are combined to form a track initiation cell. That is, a second map is formed with coarser granularity for the purpose of controlling the priority of track initiations. Each of the track initiation cells maintains a two-bit (four-state) count indicating the priority of track initiation for targets detected within the cell. A count of zero indicates the highest priority, while a count of three indicates the lowest priority. At the start of operation, the count in each is set to zero. When a target track is initiated as a result of a detection within a given track initiation cell, the priority count is incremented by one. When the track rate exceeds a predetermined value, the data processor instructs the signal processor to ignore detections from low track initiation cells (cells with a count greater than zero). When the track rate diminishes, the count in all cells having a count greater than zero are decremented by one. If the track rate remains acceptable over a predetermined period of time, the decrementation process is repeated.

53. 发明授权

US4833512A Heterojunction photo-detector with transparent gate 失效
标题翻译：带有透明门的异质结光电探测器
公开(公告)号：US4833512A
公开(公告)日：1989-05-23
申请号：US245934
申请日：1988-09-14
申请人： George H. B. Thompson
发明人： George H. B. Thompson
IPC分类号： H01L31/112
CPC分类号： H01L31/1129 , H01L31/1126
摘要： A photo-detector in the form of an optical field effect transistor comprig a semi-insulating InP substrate (1), a p.sup.+InP gate region ( 2) an n.sup.- InGaAs channel region (3) and source and drain contacts (5,6). Light incident on the bottom face of the substrate is detected. The channel region is thicker and reduced in doping in comparison with a normal JFET in order to achieve efficient light absorption and low gate to source capacitance. The source and drain contacts are interdigitated to increase the area for optical absorption (FIG. 1). Alternatively, (FIG. 2), the channel region is a composite structure including a lowly doped layer (11) for directing photogenerated carriers to a more highly doped layer (12) (active channel layer) of reduced dimensions of reduced area and upon which strip-like source and drain contacts (9,10) are disposed. The optical FET structures proposed facilitate integration with other circuit elements.
摘要翻译：光电效应晶体管形式的光检测器，包括半绝缘InP衬底（1），p + InP栅极区（2），n-InGaAs沟道区（3）和源漏漏触点（5， 6）。检测入射在基板的底面上的光。与正常JFET相比，沟道区域的掺杂更厚并且减少，以便实现有效的光吸收和低栅极到源极电容。源极和漏极接触被交叉以增加光学吸收的面积（图1）。或者，（图2），沟道区域是包括用于将光生载流子引导到具有减小的面积的尺寸减小的更高掺杂层（12）（有源沟道层）的低掺杂层（11）的复合结构，带状源极和漏极触点（9,10）被布置。提出的光学FET结构促进与其他电路元件的集成。

54. 发明授权

US4816967A Low impedance interconnect method and structure for high frequency IC such as GaAs 失效
标题翻译： GaAs等高频IC的低阻抗互连方法和结构
公开(公告)号：US4816967A
公开(公告)日：1989-03-28
申请号：US117372
申请日：1987-10-28
申请人： Richard C. Landis
发明人： Richard C. Landis
IPC分类号： H01L23/538 , H01L23/66 , H05K1/02 , H05K3/40 , H05K7/02
CPC分类号： H01L23/5384 , H01L23/66 , H01L2223/6616 , H01L2223/6622 , H01L2223/6627 , H01L2924/0002 , H01L2924/14 , H01L2924/15192 , H01L2924/1903 , H01L2924/3011 , H05K1/0218 , H05K3/4092
摘要： A method and structure are disclosed for mounting and connecting an electic device such as an integrated circuit to a circuit board. The board has a plurality of embedded shielded conductors for interconnecting the integrated circuit to other devices on the board. In order to limit the capacitance and inductance of the connection, the integrated circuit is mass bonded directly to the conductors and to their coaxial shields.
摘要翻译：公开了用于将诸如集成电路的电子装置安装和连接到电路板的方法和结构。该板具有多个嵌入式屏蔽导体，用于将集成电路与板上的其他器件互连。为了限制连接的电容和电感，集成电路直接质量地接合到导体及其同轴屏蔽上。

55. 发明授权

US4792212A Liquid crystal switching device 失效
标题翻译：液晶开关装置
公开(公告)号：US4792212A
公开(公告)日：1988-12-20
申请号：US913808
申请日：1986-09-30
申请人： Anthony P. Baker
发明人： Anthony P. Baker
IPC分类号： G02F1/1333 , G02F1/315 , G02F1/133
CPC分类号： G02F1/1326 , G02F1/315
摘要： A liquid crystal switching device includes first and second polarization reorienting cells disposed such that a polarized component of an incident light beam is incident normal to the cell.
摘要翻译：一种液晶开关装置，包括：第一和第二偏振重定向单元，被布置成使得入射光束的偏振分量垂直于单元入射。

56. 发明授权

US4790633A Liquid crystal switching apparatus 失效
标题翻译：液晶开关装置
公开(公告)号：US4790633A
公开(公告)日：1988-12-13
申请号：US913875
申请日：1986-09-30
申请人： Anthony P. Baker
发明人： Anthony P. Baker
IPC分类号： G02F1/1333 , G02F1/31 , G02F1/133
CPC分类号： G02F1/1326 , G02F1/31
摘要： A liquid crystal switching apparatus includes a plurality of juxtaposed liquid crystal switching devices, each such device being capable of selectively reorienting the polarization of a polarized light beam component incident thereupon.
摘要翻译：液晶开关装置包括多个并置的液晶切换装置，每个这样的装置能够选择性地重定向入射到其上的偏振光束分量的偏振。

57. 发明授权

US4788509A Phase shifter 失效
标题翻译：移相器
公开(公告)号：US4788509A
公开(公告)日：1988-11-29
申请号：US896779
申请日：1986-08-15
申请人： Inder J. Bahl , Gary K. Lewis
发明人： Inder J. Bahl , Gary K. Lewis
IPC分类号： H03F3/60
CPC分类号： H03F3/607 , H03F2200/372
摘要： A multifunction monolithic microwave integrated circuit composed of a pluity of dual gate FET amplifier sections connected between a pair of transmission lines which are adapted to receive one or two input signals. The circuit can be configured, by selective external connections and biasing voltage levels, to function in a number of different modes, such as an amplifier, a mixer, modulator, a variable amplifier, an attenuator, a temperature compensation chip, a frequency multiplier and a phase shifter.
摘要翻译：一种多功能单片微波集成电路，由连接在一对传输线之间的多个双栅极FET放大器部分组成，适用于接收一个或两个输入信号。该电路可以通过选择性外部连接和偏置电压电平来配置为在多种不同模式中工作，例如放大器，混频器，调制器，可变放大器，衰减器，温度补偿芯片，倍频器和移相器

58. 发明授权

US4784470A Optical switching device 失效
标题翻译：光开关器件
公开(公告)号：US4784470A
公开(公告)日：1988-11-15
申请号：US795157
申请日：1985-11-05
申请人： Anthony P. Baker
发明人： Anthony P. Baker
IPC分类号： G02F1/1333 , G02F1/133
CPC分类号： G02F1/1326
摘要： An optical switching device includes first and second polarization changing cells, the polarization changing cells utilize twisted nematic liquid crystal material to effect the change of polarization. The resultant device exhibits reduced cross talk between the output ports thereof and requires less voltage to effect the switching of the output beam therebetween.
摘要翻译：光开关器件包括第一和第二偏振变换单元，偏振改变单元利用扭曲的向列型液晶材料来实现极化的改变。所得到的装置在其输出端口之间表现出减少的串扰，并且需要更少的电压来实现其间的输出光束的切换。

59. 发明授权

US4768073A Testing integrated circuits 失效
标题翻译：测试集成电路
公开(公告)号：US4768073A
公开(公告)日：1988-08-30
申请号：US880406
申请日：1986-06-30
申请人： Garry R. Adams
发明人： Garry R. Adams
IPC分类号： H01L21/66 , G01R31/308 , G01R31/319 , H01L21/822 , H01L27/04 , H01L27/14 , H01L27/02 , H01L31/12
CPC分类号： G01R31/308
摘要： Integrated circuits are tested prior to separation from a processed wafer.ach circuit has photoreceivers coupled via metallization tracks to an adjacent circuit. The receivers are used for the input of high speed optical test signals. The intercircuit coupling tracks are severed when the wafer is scribed to separate the individual circuits thus removing the electrical parasitic effects of the receivers.
摘要翻译：在与处理的晶片分离之前测试集成电路。每个电路具有通过金属化轨道耦合到相邻电路的光接收器。接收机用于输入高速光学测试信号。当晶片被刻划以分离各个电路，从而消除接收器的电寄生效应时，间断耦合轨道被切断。

60. 发明授权

US4755740A Circuit for power pulse amplitude stabilization in radar transmitter pulse modulator or the like 失效
标题翻译：雷达发射机脉冲调制器等功率脉冲振幅稳定电路
公开(公告)号：US4755740A
公开(公告)日：1988-07-05
申请号：US56027
申请日：1987-06-01
申请人： Richard S. Loucks
发明人： Richard S. Loucks
IPC分类号： G05F1/56 , H03K3/57 , G05F1/613
CPC分类号： G05F1/56 , H03K3/57
摘要： A pulse modulator for a radar system employing resonant charging of a pulse forming network and circuits for periodically discharging the network to form a power pulse applied to a microwave transmitter such as a magnetron, for example. The system includes circuits for controlling the pulse forming network charge effective at a time ahead of the discharging of the network, thereby to stabilize (regulate) the power pulse amplitude. The circuits shown provide for introduction of an increment of charge current independently of the resonant charging current of a magnitude determined by evaluation of the pulse forming network terminal voltage.
摘要翻译：一种用于雷达系统的脉冲调制器，其采用脉冲形成网络的谐振充电和用于周期性地放电网络的电路，以形成施加到例如磁控管的微波发射器的功率脉冲。该系统包括用于控制在网络放电之前的时间有效的脉冲形成网络电荷的电路，从而稳定（调节）功率脉冲幅度。所示的电路提供了独立于谐振充电电流的增加的电荷增量，该电平由通过脉冲形成网络端电压的评估确定的大小。

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