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公开(公告)号：US4466694A
公开(公告)日：1984-08-21
申请号：US47174
申请日：1979-06-08
申请人： Robert I. MacDonald
发明人： Robert I. MacDonald
CPC分类号： G02B6/124 , G02B6/29323 , G02B6/29358 , G02B6/2938 , G02B6/29389 , G02B6/29317
摘要： An optical coupler for a fiber optic communication system, which couples one band of wavelengths out of the fiber while allowing others to be carried further. This allows wavelength division multiplexing of different signals within a single fiber. The preferred embodiment of the invention is comprised of a waveguide having aperiodic corrugations in one wall and a Fabry-Perot type resonator enclosing the waveguide around the corrugations with its axis transverse thereto.
摘要翻译： 一种用于光纤通信系统的光耦合器，其将一个波段的波段耦合出光纤，同时允许其他的波长带宽进一步携带。 这允许单个光纤内的不同信号的波分复用。 本发明的优选实施例包括在一个壁中具有非周期性波纹的波导和围绕波纹的波纹管围绕波导的法布里 - 珀罗型谐振器。
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公开(公告)号：US4396917A
公开(公告)日：1983-08-02
申请号：US924446
申请日：1978-07-06
申请人： Trevor W. Tucker
发明人： Trevor W. Tucker
摘要： Known electronic countermeasures systems have difficulty handling some modern radar signals, for example frequency agile, frequency sliding or frequency coded signals. The invention disclosed overcomes the problems of the prior art by using an analog frequency dividing system to virtually instantaneously down-convert received signals in octave steps and in octave stages into the frequency regimes associated with the operation of processing devices, such as analog to digital converters, digital logic devices, surface acoustic wave devices, and charge coupled devices. Those processed signals which are selected for retransmission, perhaps in a modified form, are then up-converted into the region of the received signal by the appropriate number of stages of frequency multipliers. Any modification in such signal parameters as signal duration, delay, frequency, phase, power, amplitude or spectral content may be incorporated prior to the first multiplication stage, between multiplication stages, after the last multiplication stage, or any combination of the above.
摘要翻译： 已知的电子对抗系统难以处理一些现代雷达信号，例如频率敏捷，频率滑动或频率编码信号。 发明内容通过使用模拟分频系统将接收到的信号以八度音阶和八度级逐次下变频成与诸如模数转换器之类的处理装置的操作相关联的频率状态克服了现有技术的问题。 数字逻辑器件，表面声波器件和电荷耦合器件。 然后，可能以修改形式被选择用于重传的那些被处理的信号通过适当数量的频率乘法器被上变频到接收信号的区域。 在信号持续时间，延迟，频率，相位，功率，幅度或频谱内容之类的信号参数中的任何修改可以在第一乘法阶段之前，在乘法阶段之后，在最后的乘法阶段之后，或上述的任何组合之间被并入。
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公开(公告)号：US07139082B2
公开(公告)日：2006-11-21
申请号：US10677529
申请日：2003-10-03
IPC分类号： G01B11/24
CPC分类号： G01V1/3835
摘要： An apparatus to determine the three-dimensional shape of an array under water using a CCD camera with a field-of-view directed towards the array and a plurality of LED light sources attached to the array which emit light near the attenuation minimum of the water and towards the camera. The camera obtains images of each light source individually from which the x and y co-ordinates of the images of each light source can be determined. Pressure sensors on each light source and camera determine the difference in depth between the camera and the light sources and, with the x and y co-ordinates, the apparatus determines the three-dimensional position of each light source.
摘要翻译： 使用具有朝向阵列的视场的CCD照相机确定水下阵列的三维形状的装置，以及附接到阵列的多个LED光源，所述LED光源在水的衰减最小值附近发射光 并朝向相机。 摄像机分别获得每个光源的图像，由此可以确定每个光源的图像的x和y坐标。 每个光源和相机上的压力传感器确定了相机和光源之间的深度差异，并且利用x和y坐标，设备确定每个光源的三维位置。
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公开(公告)号：US07062001B2
公开(公告)日：2006-06-13
申请号：US10232831
申请日：2002-09-03
申请人： Jim P. Y. Lee
发明人： Jim P. Y. Lee
CPC分类号： H04B7/0817 , H04L1/02
摘要： An adaptive receiver for determining parameters of an incoming signal is provided. The adaptive receiver includes: a) a plurality of antenna channels; each of the antenna channels including a respective antenna element for receiving the incoming signal and for outputting a respective antenna channel signal; b) a switching matrix operatively coupled to receive antenna channel signals from the antenna channels; the switching matrix for distributing the antenna channel signals to a plurality of receiver channels according to a predetermined mapping; c) a multi-channel down-converter operatively coupled to receive the antenna channel signals from the receiver channels; the multi-channel down-converter for processing the antenna channel signals to output respective intermediate frequency signals; d) a plurality of analog-to-digital converters (ADCs) operatively coupled to receive the intermediate frequency signals from the multi-channel down-converter; the ADCs for converting the intermediate frequency signals to digital signals; the digital signals being indicative of at least the phase and amplitude of the incoming signal; and, e) a digital processor operatively coupled to receive the digital signals from the ADCs for determining the parameters.
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公开(公告)号：US5805529A
公开(公告)日：1998-09-08
申请号：US932581
申请日：1997-09-17
CPC分类号： G10K9/121
摘要： An underwater acoustic projector comprising a pair of spaced apart end plates with an acoustic driver positioned between the end plates, the driver having smaller cross-sectional dimensions than the end plates. The end plate's edges are secured to an outer one-piece thin walled shell that provides a waterproof enclosure for the driver. That thin walled shell has a concavely inwardly bent surface between the end plates and a plurality of axially extending corrugations to provide a predetermined axial compliance and radial-to-axial transformation ratio.
摘要翻译： 一种水下声学投影仪，包括一对间隔开的端板，其具有定位在端板之间的声学驱动器，该驱动器具有比端板更小的横截面尺寸。 端板的边缘固定到外部单件薄壁外壳，为驾驶员提供防水外壳。 该薄壁壳体在端板和多个轴向延伸的波纹之间具有凹入向内弯曲的表面，以提供预定的轴向顺应性和径向 - 轴向变换比。
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公开(公告)号：US5631441A
公开(公告)日：1997-05-20
申请号：US626453
申请日：1996-04-02
申请人： Paul Briere , Michel St-Onge , Andre Roy , Bruno Paradis , Louis Legare
发明人： Paul Briere , Michel St-Onge , Andre Roy , Bruno Paradis , Louis Legare
CPC分类号： F42B5/15
摘要： A decoy flare for infrared (IR) seeking missiles comprises a tubular outer shell with a first rupturing disc sealing a rear end of the outer shell and a cover member with a second rupturing disc sealing a front end of the outer shell. These form a sealed container for a pyrophoric liquid. A nozzle cap is attached to the cover member with a nozzle being located in front of the second rupturing disc. A piston in the container adjacent the first rupturing disc separates the pyrophoric liquid from the disc. A holder for a gas generator, a disc of energetic material, is connected in sealed relationship to the container to position the gas generator adjacent the first rupturing disc and form a gas generating chamber between the holder and that disc. That holder contains an ignition mechanism for the gas generator and a seal to prevent gases from escaping via the ignition mechanism after it is activated. Gases generated in the chamber will rupture the first rupturing disc, pushing the piston forward to rupture the second disc and eject pyrophoric liquid from the nozzle. A base portion connected to the flare forms a holder for an impulse cartridge that separates the flare from the base portion when activated, that separation activating the ignition mechanism. In these decoy flares, a friction wire safety ignition mechanism may be used to activate the gas generator upon separation of the flare from the base or, alternatively, a bore rider safety ignition mechanism may be used.
摘要翻译： 用于寻找红外（IR）的导弹的诱饵火炬包括管状外壳，其具有密封外壳后端的第一破裂盘和具有密封外壳前端的第二破裂盘的盖构件。 这些形成用于自发液体的密封容器。 喷嘴盖附接到盖构件，喷嘴位于第二破裂盘的前面。 与第一破裂盘相邻的容器中的活塞将自发性液体与盘分离。 用于气体发生器的保持器，高能材料盘以密封的关系连接到容器以将气体发生器定位在第一破裂盘附近，并在保持器和该盘之间形成气体发生室。 该支架包含用于气体发生器的点火机构和用于防止气体在启动之后通过点火机构逸出的密封件。 在室内产生的气体将破裂第一破裂盘，将活塞向前推动以破裂第二盘并从喷嘴喷出自发性液体。 连接到火炬的基座部分形成用于在激活时将喇叭口与基部分离的脉冲盒的保持器，该分离激活点火机构。 在这些诱饵弹簧中，可以使用摩擦线安全点火机构来在将火炬与基座分开时启动气体发生器，或者也可以使用钻铤安全点火机构。
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公开(公告)号：US5382286A
公开(公告)日：1995-01-17
申请号：US91297
申请日：1993-07-15
IPC分类号： C08L5/08 , G01S7/524 , G10K11/00 , G10K11/02 , C09D105/08
CPC分类号： C08L5/08 , G10K11/006 , G10K11/02 , G01S7/524
摘要： A method for reducing cavitation around underwater acoustic projectors is described. The projector is cleaned with a surfactant and then encapsulated with an aqueous gel containing a polysaccharide polymer such as a chitosan derivative, a hydrophilic stabilizer and a biocide.
摘要翻译： 描述了一种减少水下声学投影仪周围气蚀的方法。 投影仪用表面活性剂清洗，然后用含有多糖聚合物如壳聚糖衍生物，亲水性稳定剂和杀生物剂的含水凝胶包封。
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公开(公告)号：US5223056A
公开(公告)日：1993-06-29
申请号：US822420
申请日：1992-01-21
申请人： Elie Ahad
发明人： Elie Ahad
CPC分类号： C08G65/24 , C06B45/105 , C08G18/5021 , C08L71/02
摘要： Novel energetic azido thermoplastic elastomers (ATPE's) are described. Such materials are useful as binders in energetic formulations to replace conventional inert thermosetting prepolymers. The ATPE's are easily formulated either by blending or chemically bonding an energetic azido elastomeric component and a thermoplastic component. The elastomeric component is a branched chain hydroxy-terminated azido polymer or copolymer. The thermoplastic component is a commercial polyether or polyethylene oxide.
摘要翻译： 描述了新的能量叠加热塑性弹性体（ATPE）。 这种材料可用作能量制剂中的粘合剂以取代常规的惰性热固性预聚物。 通过混合或化学键合高能叠氮弹性体组分和热塑性组分，可以容易地配制ATPE。 弹性体组分是支链羟基封端的叠氮基聚合物或共聚物。 热塑性组分是商业聚醚或聚环氧乙烷。
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公开(公告)号：US5075693A
公开(公告)日：1991-12-24
申请号：US416743
申请日：1989-10-05
IPC分类号： G01C21/26
CPC分类号： G01C21/26
摘要： A land navigation system for use in a vehicle, comprises, in combination, a device providing a signal representative of the heading of the vehicle, a device providing a signal representative of the speed of the vehicle, and a computing apparatus responsive to the vehicle heading representative signal and the vehicle speed representative signal for providing a continuous indication of the position, altitude and heading of the vehicle.
摘要翻译： 一种用于车辆的陆地导航系统，其组合包括提供表示车辆航向的信号的装置，提供代表车辆速度的信号的装置以及响应于车辆航向的计算装置 代表信号和用于提供车辆的位置，高度和航向的连续指示的车辆速度代表信号。
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公开(公告)号：US4767619A
公开(公告)日：1988-08-30
申请号：US895380
申请日：1986-08-11
申请人： Douglas G. Murray
发明人： Douglas G. Murray
CPC分类号： A61L15/225 , A61F13/0253 , A61F13/0289 , A61L26/0052 , A61F2013/00157 , A61F2013/00182 , A61F2013/00519 , A61F2013/00719 , A61F2013/00846
摘要： The invention disclosed is a burn wound-adherent dressing material comprising a complex of gelatin and a water-soluble resin material such as polyethylenimine. The dressing material may be in the form of a preformed film or in the form of an aqueous coating which sets to a gel and dries to a continuous wound-adherent film in situ.
摘要翻译： 本发明公开了一种烧伤伤口贴敷敷料，其包含明胶复合物和水溶性树脂材料如聚乙烯亚胺。 敷料材料可以是预成型薄膜的形式，也可以是水性涂料的形式，其设置成凝胶并原位干燥成连续的缠绕粘附薄膜。
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