公开(公告)号：WO1990007129A1

公开(公告)日：1990-06-28

申请号：PCT/US1989005004

申请日：1989-11-14

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  ZERKOWITZ, Avinoam, S.

IPC: G01S13/28

CPC classification number: G01S7/2926 ,  G01S13/288

Abstract: A digital range correlator is disclosed which provides a correlation scheme which can be mechanized and produced repeatedly with minimal need for offsets and reduced power supply sensitivity. CCDs are eliminated and the need for channel-to-channel matching is obviated. The digital correlator (10) of the present invention includes an analog-to-digital converter (12) for converting an input analog signal into a digital signal to provide a plurality of digital words one corresponding to each range gate. An accumulator (22) is provided for summing the bits of each digital word to provide an accumulated sum for each range gate. The digital sums are compared in a processor (26) to identify the range gate of the target. In a specific embodiment, the invention allows for the incorporation of a correlation code.

Abstract translation: 公开了一种数字范围相关器，其提供相关方案，其可以以最少的偏移需求和降低的电源灵敏度重复机械化和制造。 消除了CCD，并且消除了对信道到信道匹配的需要。 本发明的数字相关器（10）包括用于将输入的模拟信号转换为数字信号以提供与每个范围门对应的多个数字字的模数转换器（12）。 提供累加器（22）用于对每个数字字的位进行求和以提供每个范围门的累加和。 在处理器（26）中比较数字和，以识别目标的范围门。 在具体实施例中，本发明允许并入相关代码。

公开(公告)号：WO1990007105A1

公开(公告)日：1990-06-28

申请号：PCT/US1989005458

申请日：1989-12-01

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  BAILEY, Wilbur, M. ,  HULDERMAN, George, H. ,  JONES, Vincent, L. ,  PIKULSKI, Joseph, L. ,  STANDLEE, Arlie, G. ,  TANGONAN, Gregory, L. ,  VINCE, Michael, R. ,  WYSOCKI, Joseph, A.

IPC: G01M11/02

CPC classification number: G01M11/37

Abstract: A fiber optic buffer defect detection system (10) including a laser, for illuminating the fiber buffer (34) with a collimated beam of light energy (20 or 22), and detectors (46 and 48) for detecting any scattering of the beam (20 or 22), from a defect (32) in the fiber buffer (34). The detectors (46 and 48) are mounted to collect scattering out of a radial plane defined by the angular rotation of the beam (20 or 22) with the fiber buffer (34).

公开(公告)号：WO1990005929A1

公开(公告)日：1990-05-31

申请号：PCT/US1989004607

申请日：1989-10-19

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  VERVILLE, Thomas, J.

IPC: G02B06/44

CPC classification number: G02B6/4457

Abstract: Optical fibers (12) are removably held in place on a payout bobbin using a silicone-based adhesive. The adhesive in a liquid carrier is applied to the optical fibers (12) as they are wound onto the payout bobbin (14), and holds the fibers (12) in place during the winding of subsequent turns. The fiber (12) is readily unwound from the bobbin (14) during payout without disruption of adjacent turns or layers, even after long-term storage. The preferred adhesive has about 5 percent by weight of a mixture of 25 percent by weight of a fluorosilicone and 75 percent by weight of a polydimethylsiloxane, and is carried for deposition in 95 percent by weight/volume of a liquid carrier selected from the group consisting of 1,1,2-trichloro-1,2,2-trifluoroethane, 1,1,1-trichloroethane, and mixtures thereof.

Abstract translation: 使用有机硅基粘合剂将光纤（12）可移除地保持在放电线轴上的适当位置。 液体载体中的粘合剂在卷绕到放线线轴（14）上时被施加到光纤（12）上，并且在后续匝数的卷绕期间将纤维（12）保持在适当位置。 纤维（12）即使在长时间储存​​之后也可在支付期间从线轴（14）展开而不会相邻匝或层的中断。 优选的粘合剂具有约5重量％的25重量％的氟硅酮和75重量％的聚二甲基硅氧烷的混合物，并且用于沉积95重量％/体积的液体载体，所述液体载体选自 1,1,2-三氯-1,2,2-三氟乙烷，1,1,1-三氯乙烷及其混合物。

公开(公告)号：WO1990003688A1

公开(公告)日：1990-04-05

申请号：PCT/US1989001249

申请日：1989-03-23

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  HANCOCK, Donald, J. ,  ROBSON, Ronald, R.

IPC: H02M03/335

CPC classification number: H02M3/33507

Abstract: A dual mode flyback power supply (10) capable of automatically transitioning between operational modes in response to changes in the impedance of a load (12) connected thereto. The dual mode power supply (10) of the present invention includes an input voltage source (15) for providing input voltage and current. The power supply (10) also includes a first transformer (20) having primary N1, secondary N2 and tertiary N3 windings for supplying a first current to a load (12) operatively coupled to the secondary winding N2. The primary winding N1 is coupled to the input voltage source (15). A feedback circuit (50) provides a first signal in response to the current through the load (12) and a second signal in response to the load voltage exceeding a threshold voltage. The power supply (10) of the present invention further includes a switch (30) for controlling the input current through the primary winding N1 of the first transformer (20) in response to the first and second signals. A second transformer (25) having a primary winding operatively coupled to the tertiary winding N3 of the first transformer (20) supplies a second current to the load (12) in response to the current through the tertiary winding N3.

公开(公告)号：WO1990001806A1

公开(公告)日：1990-02-22

申请号：PCT/US1989002664

申请日：1989-06-19

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  SKERTIC, Matthew, M.

IPC: H01L35/22

CPC classification number: H01L35/225 ,  H01L35/18 ,  Y10S257/93 ,  Y10S505/894 ,  Y10S505/897

Abstract: A pratical cryogenic Peltier cooler (22) is devised by replacing one of the semiconducting elements in a conventional Peltier cooler with an element comprised of bulk, or thin film superconducting material. In the preferred embodiment, a rare-earth, a barium copper oxide superconductor (78) of the form RBa2Cu3Ox is utilized. The superconducting elements (78) are placed in an alternating series with semiconducting elements (72) comprised of bismuth telluride of the form Bi2Te3 (n-type). Performance may be improved in an alternative embodiment by utilizing instead a bismuth antinomy semiconductor of the form Bi85Sb15 (n-type). As a result, cryogenic Peltier coolers can be devised with useful refrigeration capacities and stable cold temperatures of 65-80 degrees Kelvin and below, while heat sinked to a higher temperature.

Abstract translation: 通过用传统的珀尔帖冷却器中的一个半导体元件替换由本体或薄膜超导材料组成的元件，设计了一种实用的低温珀尔帖冷却器（22）。 在优选实施例中，使用了RBa2Cu3Ox形式的稀土，铜钡氧化物超导体（78）。 超导元件（78）与由Bi2Te3（n型）形式的碲化铋构成的半导体元件（72）交替地放置。 在替代实施例中，可以通过利用Bi85Sb15（n型）形式的铋抗体半导体来改善性能。 因此，可以设计低温珀耳贴冷却器，具有有用的制冷能力和65-80开氏度以下的稳定的冷温，同时散热到更高的温度。

公开(公告)号：WO1990001748A1

公开(公告)日：1990-02-22

申请号：PCT/US1989002975

申请日：1989-07-10

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  LO, Thomas, K. ,  SACKS, Jack, M. ,  BANH, Nam, D.

IPC: G06F15/70

CPC classification number: H03H17/0263 ,  G06F17/153 ,  G06T7/254

Abstract: Three image frames containing the object of interest and background clutter are taken at successive time intervals and stored in memory. The background of images A, B and C are registered preferably using an area correlator (12). A median filter (16) is used to select a median value from the registered image frames. Then, subtractor (18) serves to subtract the median pixel values from one of the image frames. This difference output is then thresholded to provide a binary signal whose pixel values exceeding the threshold levels are generally associated with the position of the moving object.

Abstract translation: 包含感兴趣对象和背景杂波的三个图像帧以连续的时间间隔拍摄并存储在存储器中。 图像A，B和C的背景优选地使用区域相关器（12）来记录。 中值滤波器（16）用于从登记的图像帧中选择中值。 然后，减法器（18）用于从图像帧之一中减去中值像素值。 该差分输出然后被阈值化以提供其像素值超过阈值水平的二进制信号通常与移动物体的位置相关联。

公开(公告)号：WO1990001518A1

公开(公告)日：1990-02-22

申请号：PCT/US1989002581

申请日：1989-06-15

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  OLDHAM, Susan, L. ,  PRIOR, Desiree, S.

IPC: C08K05/54

CPC classification number: C08K5/54 ,  B64G1/52 ,  C08K3/38 ,  C08K5/057 ,  C08K5/098 ,  Y10T428/31511 ,  Y10T428/3154 ,  Y10T428/31663 ,  Y10T428/31721 ,  Y10T428/31786

Abstract: A method and composition which provides both thermal control and electrostatic discharge protection to bodies in the space environment. The composition comprises: a) a chosen polymer or resin that forms a polymer that is an electronic insulator and is suitable for space applications; and b) a selected lithium salt as a dopant wherein said composition, when formed into a film or coating, provides a semiconductive film or coating having a volume resistivity of about 10?6 to 1011¿ ohm-centimeter and a value of solar absorptance/total normal emittance within the range of about 0.305 to 0.595. In an alternative embodiment, the composition may optionally include tantalum pentoxide.

公开(公告)号：WO1990001174A1

公开(公告)日：1990-02-08

申请号：PCT/US1989002631

申请日：1989-06-16

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  BURT, Donald, W. ,  HANS, Gerald, A.

IPC: G02B05/08

CPC classification number: G02B5/09

Abstract: A mirror (10) having optical quality reflective faces (14) is prepared by pressing of metallurgical powders. An optical quality surface (14), free of scratches and irregularities, is formed by pressing the faces with an optical quality tool face (44), applied to the face at an acute angle to achieve a degree of metal flow. The mirror (10) is progressively formed, by first pressing an assembly of powder to a ''green'' powder mirror, sintering the pressed powder, and then repressing the sintered mirror using a tool having optical quality surfaces on the faces contacting the mirror faces. The mirror is annealed, repressed with the tool having optical quality surfaces, and coated on the reflective surfaces with a thin metallic coating. This technique is particularly effective for preparing large numbers of mirrors with multiple facets requiring precise facet intersections, as the pressing tool can be adjusted to produce highly exact facet intersections which are then reproduced exactly in subsequent mirrors.

Abstract translation: 通过压制冶金粉末制备具有光学质量反射面（14）的反射镜（10）。 通过用光学质量工具面（44）按压面而形成没有划痕和不规则的光学质量表面（14），以锐角施加到面上以实现金属流动程度。 通过首先将粉末组合件压入“绿色”粉末反射镜，烧结压粉，然后使用具有与镜子接触的表面上的光学质量表面的工具压制烧结反射镜，逐渐形成反射镜（10） 面对。 镜子退火，用具有光学质量表面的工具压制，并用薄金属涂层涂覆在反射表面上。 这种技术对于准备具有需要精确小面交点的多个面的大量反射镜是特别有效的，因为压制工具可被调整以产生高度精确的小平面交点，然后精确地在随后的反射镜中再现。

公开(公告)号：WO1990000820A1

公开(公告)日：1990-01-25

申请号：PCT/US1989002428

申请日：1989-06-05

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  CROSS, William, D.

IPC: H01R23/66

CPC classification number: H01R12/79 ,  H01R12/78

Abstract: A cable and connector section comprising a section of cable (13), including an elongated, flexible body (19) of insulating material and a plurality of conductors (21) carried by the body. Each of the conductors (21) terminates in a conductor end (25). A connector body section (15) on the section of flexible cable (13) is usable for connecting the section of flexible cable to another member (15a, 37). A plurality of contacts (17) are provided on the conductor ends (25), respectively, to achieve a high-contact density.

公开(公告)号：WO1990000311A1

公开(公告)日：1990-01-11

申请号：PCT/US1989001068

申请日：1989-03-17

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  CHOW, Yu, Chang ,  LIAO, Kuan-Yang ,  CHIN, Maw-Rong

IPC: H01L21/285

CPC classification number: H01L29/66575 ,  H01L21/28518 ,  H01L29/41783

Abstract: A process for forming a diffusion barrier on exposed silicon and polysilicon contacts (13, 15, 21) of an integrated circuit (10) including the step of chemically vapor depositing a layer of tungsten (25) in a self-aligned manner on the exposed contact areas (13, 15, 21). The layer of tungsten (25) is plasma nitridated to form a tungsten nitride layer (25a) and to partially form a tungsten silicide layer (25b) adjacent the contact areas. The formation of the tungsten silicide layer (25b) is completed by thermal annealing.