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91. 发明授权

US6137437A Spaceborne scatterometer 失效
标题翻译：太空散射仪
公开(公告)号：US6137437A
公开(公告)日：2000-10-24
申请号：US275020
申请日：1999-03-24
申请人： Chung-Chi Lin , John Julian William Wilson , Fabrizio Impagnatiello , Peter Park
发明人： Chung-Chi Lin , John Julian William Wilson , Fabrizio Impagnatiello , Peter Park
IPC分类号： G01S13/28 , G01S13/42 , G01S13/95 , G01S13/60
CPC分类号： G01S13/955 , G01S13/422 , G01S13/28
摘要： A scatterometer orbiting around the earth globe comprises a single fanbeam radar antenna which is rotated around a vertical axis, at a slow rotation rate. The antenna foot-print sweeps a circular disc. The slow conical sweep combined with the motion of the satellite on which the scatterometer is mounted results in highly overlapping successive sweeps such that an image pixel is revisited many times during an overpass. The pixels in the radial direction are resolved by range-gating the radar echo. The radar operates in the C-band. The scatterometer is intended, in particular, to determine wind speed and direction over the ocean.
摘要翻译：围绕地球仪绕轨道的散射仪包括以慢旋转速度绕垂直轴线旋转的单个扇形波束雷达天线。天线脚印扫描圆盘。与其上安装散射仪的卫星的运动结合的慢锥形扫描导致高度重叠的连续扫描，使得在天桥期间重新考察图像像素多次。通过对雷达回波的范围门控来解决径向中的像素。雷达在C波段工作。散射仪特别用于确定海洋上的风速和方向。

92. 发明授权

US5898356A Thermally-activated switch for short-circuiting a battery cell 失效
标题翻译：用于短路电池的热敏开关
公开(公告)号：US5898356A
公开(公告)日：1999-04-27
申请号：US687955
申请日：1996-07-29
申请人： Peter Ffrecheville Gascoyne , Geoffrey John Dudley
发明人： Peter Ffrecheville Gascoyne , Geoffrey John Dudley
IPC分类号： H01H37/32 , H01H37/76 , H01H79/00 , H01H61/01
CPC分类号： H01H37/767 , H01H79/00 , H01H2037/768 , H01H37/323
摘要： A thermally activated short-circuit switch for connection in parallel with a battery cell has first and second contact elements (6; 3) which are distinct from the electrodes of a diode, and thermally activatable means (45) for short-circuiting the first and second contact elements (6; 3). The first and second contact elements have respective first and second regions (6; 3) facing each other, and said thermally activatable means (45) is mechanically linked to the first contact element (6).
摘要翻译：用于与电池单元并联的热激活短路开关具有与二极管的电极不同的第一和第二接触元件（6; 3）和用于使第一和第二接触元件短路的热激活装置（45）第二接触元件（6; 3）。第一和第二接触元件具有彼此面对的相应的第一和第二区域（6; 3），并且所述可热激活装置（45）机械连接到第一接触元件（6）。

93. 发明授权

US5812088A Beam forming network for radiofrequency antennas 失效
标题翻译：射频天线的波束形成网络
公开(公告)号：US5812088A
公开(公告)日：1998-09-22
申请号：US573361
申请日：1995-12-15
申请人： Franceso Coromina Pi , Javier Ventura-Traveset Bosch , Mike Yarwood , Wolfgang Bosch
发明人： Franceso Coromina Pi , Javier Ventura-Traveset Bosch , Mike Yarwood , Wolfgang Bosch
IPC分类号： H01Q21/29 , G06F17/14 , H01Q1/28 , H01Q3/26 , H01Q3/40 , H01Q25/00 , H01Q3/22 , H01Q3/24
CPC分类号： H01Q3/26 , H01Q25/00 , H01Q3/40
摘要： The invention concerns a beam forming network for radiofrequency antennas and applying to the input signals a two-dimensional hexagonal discrete Fourier transform in order to control radiating elements for generating multiple beams. The number of inputs and outputs is equal to N.sub.t with N.sub.t =R.times.N.sup.2, R and N being integers. A first circuit layer comprises a row of N.sup.2 cells each having R inputs and R outputs, each cell receiving a signal present at one of said N.sub.t inputs and applying to the signals present at its R inputs a one-dimensional R.times.R discrete Fourier transform, and a second circuit layer comprises R independent sets of cells each having N inputs and N outputs, each set including a first row and a second row of N cells, each cell applying to the signals present at its N inputs a one-dimensional R.times.R discrete Fourier transform. The invention also concerns a hardware structure for a network of this kind.
摘要翻译：本发明涉及用于射频天线的波束形成网络，并且向输入信号施加二维六边形离散付里叶变换，以便控制用于产生多个波束的辐射元件。输入和输出的数量等于Nt，Nt = RxN2，R和N为整数。第一电路层包括一排N2个单元，每一个单元具有R个输入和R个输出，每个单元接收存在于所述Nt个输入端之一的信号，并向其R输入端施加一维RxR离散付里叶变换，第二电路层包括每个具有N个输入和N个输出的R个独立的单元组，每个单元包括N个单元的第一行和第二行，每个单元对其N输入端存在的信号施加一维RxR离散傅里叶转变。本发明还涉及这种网络的硬件结构。

94. 发明授权

US5651296A Device for providing protection against debris produced by a pyro bolt cutter 失效
标题翻译：用于提供防止由火花螺栓切割机产生的碎片的装置
公开(公告)号：US5651296A
公开(公告)日：1997-07-29
申请号：US787839
申请日：1991-11-05
申请人： Rudolf Halm , Peter Gerald Edwards
发明人： Rudolf Halm , Peter Gerald Edwards
IPC分类号： B64G1/52 , B64G1/64 , F16B31/00 , F42B3/00 , B26D7/01
CPC分类号： F42B3/006 , B64G1/52 , B64G1/645 , F16B31/005 , Y10T83/68 , Y10T83/748 , Y10T83/8863
摘要： A device for providing protection against the debris produced by a bolt that can be cut by a pyro bolt cutter, in particular through the use of a pyrotechnic device, the device including a confinement enclosure which surrounds the body of the bolt where it leaves the cutting device, and including resiliently deformable members such as membranes that are slit in their centers, with the body of the bolt passing in a substantially sealed manner through the centers of the membranes. The device serves to trap inside the confinement enclosure the debris that are produced when the bolt is cut, and it is particularly applicable to the aerospace industry.
摘要翻译：特别是通过使用烟火装置，用于提供防止由螺栓切割的螺栓产生的碎屑的装置，所述装置包括围绕螺栓的主体的限制外壳，其中所述密封罩离开切割装置，并且包括可弹性变形的构件，例如在其中心处被切割的膜，其中螺栓的主体以基本上密封的方式通过膜的中心。该装置用于在限制外壳内捕获在螺栓切割时产生的碎屑，并且其特别适用于航空航天工业。

95. 发明授权

US5648784A procedure for controlling a scanning antenna 失效
标题翻译：控制扫描天线的步骤
公开(公告)号：US5648784A
公开(公告)日：1997-07-15
申请号：US600279
申请日：1996-02-12
申请人： Francois-Xavier Benedicto Ruiz , Mario Lopriore , Luigi Bella
发明人： Francois-Xavier Benedicto Ruiz , Mario Lopriore , Luigi Bella
IPC分类号： H01Q3/26 , H01Q25/00 , H04B7/204 , H04W8/00 , H04W28/04 , H01Q3/22
CPC分类号： H04B7/2041 , H01Q25/007 , H01Q3/26 , H04W8/005
摘要： A procedure for control of a scanning antenna including:a central modulation-management unit (OBS) incorporating an external angular scanning and packet-synchronization bus (BRC),at least N modulation-control devices (MOD.sub.1, . . . MOD.sub.N),at least one beam-forming device (BFN),at least one network comprising M antenna elements (A.sub.1, . . . A.sub.M), the central management unit (OBS) incorporating N first terminals connected respectively to N second terminals of the beam-forming device (BFM) through the N modulation-control devices (MOD.sub.1, . . . MOD.sub.N), and the beam-forming device (BFN) incorporating, on the one hand, M third terminals connected respectively to the M antenna elements respectively (A.sub.1, . . . A.sub.N), and, on the other, a scanning and synchronization terminal connected to the external bus (BRC). Scanning is effected by aiming the beam in different preferred directions at the packet rate of a multiplex, so as to address the packets in the directions and to ensure continuity of synchronization.
摘要翻译：一种用于控制扫描天线的过程，包括：包括外部角度扫描和分组同步总线（BRC）的中央调制管理单元（OBS），至少N个调制控制设备（MOD1，...，MODN）至少一个波束形成装置（BFN），包括M个天线元件（A1，...，AM）的至少一个网络，包括分别连接到波束形成装置的N个第二端子的N个第一端子的中央管理单元（OBS）（BFM）通过N个调制控制装置（MOD1，...，MODN）和波束形成装置（BFN）分别组合在一起，分别连接到M个天线元件（A1，...）上的M个第三端子。 AN），另一方面，连接到外部总线（BRC）的扫描同步终端。通过以多路复用的分组速率在不同的优选方向上瞄准光束来实现扫描，以便在方向上寻址分组并且确保同步的连续性。

96. 发明授权

US5373250A MESFET power amplifier and its power supply unit, in particular for microwave signal amplification on board a satellite 失效
标题翻译： MESFET功率放大器及其电源单元，特别适用于卫星上的微波信号放大
公开(公告)号：US5373250A
公开(公告)日：1994-12-13
申请号：US975549
申请日：1993-02-25
申请人： Giuliano Gatti , Tonicello Ferdinando , Ferruccio Denti , Alberto Battisti
发明人： Giuliano Gatti , Tonicello Ferdinando , Ferruccio Denti , Alberto Battisti
IPC分类号： H03F1/30 , H03F3/60 , H03F3/16
CPC分类号： H03F1/306
摘要： A power supply unit for a MESFET power amplifier is adapted to supply to the amplifier the voltages necessary for it to operate including a MESFET DC drain voltage. The power supply unit comprises a temperature-sensitive component near the MESFET(s) of the power circuit(s) so as to sense their temperature. A device slaved to a parameter delivered by the temperature-sensitive component varies the DC drain voltage in the same direction as the temperature varies so as to compensate by operation on the DC drain voltage the temperature-dependent antagonistic variation of gain and output power of the amplifier even if operating in saturation mode.
摘要翻译： PCT No.PCT / FR92 / 00781 Sec。 371日期：1993年2月25日 102（e）日期1993年2月25日PCT提交1992年8月7日PCT公布。公开号WO93 / 03541 日期：1993年2月18日.MESFET功率放大器的电源单元适于向放大器提供其运行所需的电压，包括MESFET直流漏极电压。电源单元包括在电源电路的MESFET附近的温度敏感元件，以便感测它们的温度。一个被温度敏感元件传递的参数的器件会随着温度变化而改变直流漏极电压，以便通过对直流漏极电压进行工作来补偿由于温度依赖的增益和输出功率的对抗性变化放大器即使在饱和模式下工作。

97. 发明授权

US5327467A Code distribution multiple access communication system with user voice activated carrier and code synchronization 失效
标题翻译：代码分配多路访问通信系统与用户语音激活载波和代码同步
公开(公告)号：US5327467A
公开(公告)日：1994-07-05
申请号：US663835
申请日：1991-05-30
申请人： Riccardo De Gaudenzi , Roberto Viola
发明人： Riccardo De Gaudenzi , Roberto Viola
IPC分类号： H04B7/216 , H04J13/00 , H04J13/16 , H04L7/00
CPC分类号： H04B1/7073 , H04B7/216
摘要： A communication system comprising a master control station and user terminals (100), in which synchronization in the outward link is achieved by transmitting a master code (MC) with the same clock frequency and carrier as the communication signals, wherein the master code (MC) is transmitted continuously and with greater power than that of the return link signals, and wherein the user voice activated message transmission carrier is broken during the pauses in a message. The invention relates in particular to a mobile satellite communications system.
摘要翻译： PCT No.PCT / EP90 / 01276 Sec。 371日期1991年5月30日 102（e）日期1991年5月30日PCT提交1990年7月31日PCT公布。出版物WO91 / 02415 日期：1991年2月21日。一种通信系统，包括主控制站和用户终端（100），其中外部链路中的同步通过以与通信信号相同的时钟频率和载波发送主代码（MC）来实现，其中所述主代码（MC）以比所述返回链路信号更大的功率连续发送，并且其中所述用户语音激活消息传输载体在消息中的暂停期间被破坏。本发明具体涉及移动卫星通信系统。

98. 发明授权

US5262953A Method of rectifying images from geostationary meteorological satellites in real time 失效
标题翻译：对地静止气象卫星图像进行实时校正的方法
公开(公告)号：US5262953A
公开(公告)日：1993-11-16
申请号：US691001
申请日：1991-06-18
申请人： Johannes de Waard , Jan Adamson , Albert M. Bos
发明人： Johannes de Waard , Jan Adamson , Albert M. Bos
IPC分类号： G01W1/08 , G06T1/00 , G06T3/00 , G06T5/00 , B64G1/36
CPC分类号： G01W1/00 , G06T5/006
摘要： A real time method of rectifying remotely sensed image data provided by a radiation measuring instrument, such as used on spin stabilized geostationary satellites, rectification being obtained by determining a number of satellite parameters including radiation measuring instrument pointing parameters, the method comprising the following steps:1) prediction of the rectification parameters by statistical analysis from a number of preceding images;2) reading a limited number of raw image lines to facilitate accurate position of the South or North horizon, depending on scan direction of the incoming image;3) determining the spin rate of the satellite from the limited number of raw image lines and predicting the spin rate variations for the rest of the image;4) refining the attitude and the radiation measuring instrument pointing parameters using the horizon information obtained in real time;5) computing the position of the other horizon and the center of the image based on the first detected horizon and geometrical data;6) generating of a deformation matrix immediately following determination of the first horizon, and7) rectifying the incoming image data immediately after in real time.
摘要翻译： PCT No.PCT / FR90 / 00787 Sec。 371日期1991年6月18日 102（e）1991年6月18日PCT 1990年10月31日PCT PCT。公开号WO91 / 06919 日期1991年5月16日。一种整流由辐射测量仪器提供的遥感图像数据的实时方法，例如用于自旋稳定的对地静止卫星，通过确定包括辐射测量仪器指向参数在内的卫星参数数量获得整流，方法包括以下步骤：1）通过来自多个先前图像的统计分析来预测整流参数; 2）读取有限数量的原始图像线，以便根据输入图像的扫描方向来促进南部或北部地平线的准确位置; 3）从有限数量的原始图像行确定卫星的旋转速率并预测图像的其余部分的旋转速率变化; 4）使用实时获取的水平信息，提炼姿态和辐射测量仪指向参数; 5）基于第一检测到的水平线和几何数据计算另一水平线和图像中心的位置; 6）在确定第一水平线之后立即产生变形矩阵，以及7）在实时之后立即校正输入的图像数据。

99. 发明授权

US5251855A Spacecraft propulsion system thruster firing system 失效
标题翻译：航天器推进系统推进器射击系统
公开(公告)号：US5251855A
公开(公告)日：1993-10-12
申请号：US995520
申请日：1992-12-22
申请人： Ingo Kaelsch
发明人： Ingo Kaelsch
IPC分类号： B64G1/26 , B64G1/40
CPC分类号： B64G1/26
摘要： Thrusters in a propulsion system of a spacecraft spin stabilized by rotation about a spin axis are fired to increase the orbital velocity of the spacecraft in a maneuver direction along the orbital velocity vector. The propulsion system comprises a pair of thrusters juxtaposed on a common support at the periphery of the spacecraft. The thrusters have thrust axes perpendicular to the spin axis and offset relative to a transverse axis of the spacecraft by equal and opposite offset angles. Each thruster is fired separately and alternately when its thrust axis is substantially parallel to the maneuver direction while the spacecraft is rotating about its spin axis.
摘要翻译：通过围绕旋转轴旋转而稳定的航天器旋转推进系统中的推进器被激发以增加沿着轨道速度矢量的机动方向上的航天器的轨道速度。推进系统包括一对推进器并置在航天器周边的共同支撑上。推进器具有垂直于旋转轴线的推力轴线，并且通过相等和相对的偏移角度相对于航天器的横向轴线偏移。当推进器的推力轴线基本上平行于机动方向时，每个推进器分别和交替地发射，同时航天器围绕其旋转轴旋转。

100. 发明授权

US5249113A DC to DC converter of the push-pull type with MOSFET switches 失效
标题翻译：带MOSFET开关的推拉式直流到直流转换器
公开(公告)号：US5249113A
公开(公告)日：1993-09-28
申请号：US830392
申请日：1992-02-03
申请人： Philippe A. Perol
发明人： Philippe A. Perol
IPC分类号： H02M3/28 , H02M3/337
CPC分类号： H02M3/3372
摘要： The converter comprises a transformer having two primary windings; a voltage source having one of its terminals connected to the center tap; and two switches connected in series between the other terminal of the voltage source and a respective one of the primary windings, the switches having stray capacitances that impose a transition time between one of the switches switching OFF and the other switch switching ON. The transformer comprises a magnetic circuit having a gap, and each primary winding has a number of turns that is determined essentially as a function of the level of losses acceptable within the magnetic circuit, the size of the gap then being adjusted, taking account of the number of turns and the operating frequency, in such a manner as to reduce the magnetizing inductance of the transformer to a value such that said transition time is less than a given threshold corresponding to tolerances of the form factor.
摘要翻译：该转换器包括具有两个初级绕组的变压器; 一个电压源，其一个端子连接到中心抽头; 和两个开关串联连接在电压源的另一个端子和相应的一个初级绕组之间，这些开关具有杂散电容，这些杂散电容在其中一个开关断开并且另一个开关导通之间施加过渡时间。变压器包括具有间隙的磁路，并且每个初级绕组具有基本上根据磁路内可接受的损耗水平确定的匝数，然后调整间隙的尺寸，考虑到匝数和工作频率，以将变压器的磁化电感减小到使得所述转变时间小于对应于形状因子的公差的给定阈值的值。

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