公开(公告)号：WO1988005428A1

公开(公告)日：1988-07-28

申请号：PCT/US1988000146

申请日：1988-01-21

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  PESAVENTO, Philip, V.

IPC: C05K01/18

CPC classification number: H05K3/305 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05155 ,  H01L2224/05553 ,  H01L2224/45014 ,  H01L2224/45015 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/45155 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/4847 ,  H01L2224/48599 ,  H01L2224/48699 ,  H01L2224/48799 ,  H01L2224/49175 ,  H01L2224/73265 ,  H01L2224/85205 ,  H01L2224/92247 ,  H01L2924/01013 ,  H01L2924/01028 ,  H01L2924/01047 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/15787 ,  H01L2924/19107 ,  H05K3/328 ,  H05K2201/10477 ,  H05K2201/10727 ,  H05K2203/049 ,  Y02P70/613 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Leadless chip package (10) is adhesively secured to printed wiring board (14) and is electrically connected by metallic conductor ribbon or wire (40, 42, 44...) to pads (30, 32, 34, 36) on the package (10) and pads (16, 18, 20, 22...) on the printed wiring board (14) to provide secure connection.

公开(公告)号：WO1988005212A2

公开(公告)日：1988-07-14

申请号：PCT/US1987003209

申请日：1987-12-04

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  DE LA CHAPELLE, Michael ,  HSU, Hui-Pin

IPC: H01L31/10

CPC classification number: H01P1/15 ,  H01L31/108 ,  H04B2210/006

Abstract: The RF/microwave switch/modulator uses an optically controlled diode (20). The reactance of the diode may be varied by varying the illumination intensity. In this fashion, the photodiode in conjunction with an external circuit can switch or modulate a microwave signal by varying the reactance of the diode using a laser light source or the like. The bias voltage may be varied to electronically tune the diode so that the microwave frequency of operation can be electronically controlled.

Abstract translation: RF /微波开关/调制器使用光控二极管（20）。 可以通过改变照明强度来改变二极管的电抗。 以这种方式，与外部电路结合的光电二极管可以通过使用激光光源等改变二极管的电抗来切换或调制微波信号。 可以改变偏置电压以电子调谐二极管，使得微波操作频率可以被电子控制。

公开(公告)号：WO1988005189A1

公开(公告)日：1988-07-14

申请号：PCT/US1987003291

申请日：1987-12-07

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  SHAHRIARY, Iradj ,  REINHARDT, Victor, S.

IPC: G06F07/50

CPC classification number: G06F7/5095 ,  G06F3/1293 ,  G06F7/68

Abstract: The shortcomings illustrated by the related art are addressed by the improved accumulator (110) of the present invention. The invention provides a periodic output signal in response to an input frequency word and includes one adder (112) for each bit of the frequency word to be added. Each adder (112) has first and second inputs (A and B), a sum output representing the sum of the first and second inputs, and a carry output (Co) representing the sum of the first and second inputs. All but the first adder (112) includes a carry input (Ci). A first sum register (114) is included for storing the sum outputs of said adders (112). The inputs of said register (114) being the sum outputs of said adders (112) and the outputs of the register (114) the second inputs of said adders (112). The invention includes a second carry register (115) for storing the carry outputs (Co) of said adders (112). The output of said second register (115) being the carry inputs (Ci) of said adders (112).

Abstract translation: 现有技术说明的缺点由本发明的改进的蓄能器（110）来解决。 本发明提供响应于输入频率字的周期性输出信号，并且包括用于待添加的频率字的每个比特的一个加法器（112）。 每个加法器（112）具有第一和第二输入（A和B），表示第一和第二输入之和的和输出和表示第一和第二输入之和的进位输出（Co）。 除第一加法器（112）之外的所有加法器包括进位输入（Ci）。 包括第一和寄存器（114），用于存储所述加法器（112）的和输出。 所述寄存器（114）的输入是所述加法器（112）的和输出和寄存器（114）的输出的所述加法器（112）的第二输入。 本发明包括用于存储所述加法器（112）的进位输出（Co）的第二进位寄存器（115）。 所述第二寄存器（115）的输出是所述加法器（112）的进位输入（Ci）。

公开(公告)号：WO1988005002A1

公开(公告)日：1988-07-14

申请号：PCT/US1987003020

申请日：1987-11-20

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  MOSS, Gaylord, E.

IPC: B60Q01/44

CPC classification number: G02B5/203 ,  B60Q1/302 ,  G03H1/0408 ,  G03H2001/2615

Abstract: An improved holographic rear window stoplight is provided and includes a hologram member laminated to the rear window surface. Single or multiple hologram layers may be provided. The hologram layers can have a diffraction grating developed in a position relative to the other diffraction grating to provide a folded reflection of light from a source of light of an appropriate wavelength band to indicate a stoplight from a predetermined angle. Alternatively predetermined indicia can be selectively displayed in either a single or multiple layer configuration. The reflection hologram member is transparent when not in use to all observers and remains transparent to the driver even when in use, and thereby prevents any blocking of his field of view.

公开(公告)号：WO1988004835A1

公开(公告)日：1988-06-30

申请号：PCT/US1987003146

申请日：1987-11-30

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  AJIOKA, James, S. ,  CLARK, Robert, T.

IPC: H01P01/06

CPC classification number: H01P1/068

Abstract: Disclosed is an around the mast rotary joint capable of multichannel operation. There are two hollow coaxial sections (18, 20), each of which operates in the TEM or quasi-TEM mode. Each section comprises a coaxial feed line (16, 14) connected to a microstrip corporate feed network which is cylindrical (24, 40). Coupled to the microstrip corporate feed is a low impedance cylindrical interface section (22, 40) which couples the power to the other coaxial section. In addition to evenly feeding the interface section, the microstrip network includes impedance transformers and matching means to match the relatively high impedance of the coaxial feed line to the relatively low impedance of the interface section. The two sections are coupled together with a noncontacting choke (54).

Abstract translation: 公开了能够进行多通道操作的桅杆旋转接头。 有两个空心同轴部分（18,20），每个部分以TEM或准TEM模式工作。 每个部分包括连接到圆柱形（24,40）的微带公司馈电网络的同轴馈电线（16,14）。 耦合到微带公司馈送是将电力耦合到另一同轴部分的低阻抗圆柱形接口部分（22,40）。 除了均匀馈电接口部分之外，微带网络还包括阻抗变换器和匹配装置，以将同轴馈线的相对较高的阻抗与接口部分的相对较低的阻抗相匹配。 两个部分与非接触式扼流器（54）耦合在一起。

公开(公告)号：WO1988004833A1

公开(公告)日：1988-06-30

申请号：PCT/US1987002768

申请日：1987-10-23

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  GAALEMA, Stephen, D. ,  AUGUSTINE, Frank, L.

IPC: H01L31/02

CPC classification number: F25D19/006 ,  G01J5/061 ,  H01L31/024 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An infrared detector has its sensor chip assembly (10, 12, 14) cooled to a relatively low temperature required for its operation, whereas a preamplifier (56) required to be positioned close to the sensor chip assembly and which generates considerably more heat than does the sensor chip assembly, is thermally isolated from the sensor chip assembly and its support (16) and is cooled to a higher temperature to thereby significantly reduce the power dissipated to the coldest refrigerator stage (90).

公开(公告)号：WO1988004783A1

公开(公告)日：1988-06-30

申请号：PCT/US1987003147

申请日：1987-11-30

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  HILL, Richard, M. ,  PARTON, Richard, D. ,  SAWYERS, James, H.

IPC: G01S13/34

CPC classification number: G01S13/584 ,  G01S13/343

Abstract: Frequency domain, pulse compression CW (continuous wave) radar apparatus comprises a frequency synthesizer which provides CW signals at a radio frequency, fRF, and at an intermediate frequency, fIF; a linear frequency modulator (LFM) which provides a saw tooth LFM ramp signal having a variable ramp frequency, fLFM, and a mixer for combining the fLFM signal with the fRF signal to thereby provide a CW radar signal having a frequency, (fRF + fLFM). A transmitter is provided for transmitting the CW (fRF + fLFM) radar signal and a receiver is provided for receiving time-delayed CW radar return signals reflected from clutter at a clutter range and reflected from a target at a target range. A second mixer is included for downconverting the time-delayed, clutter and target return signals to the intermediate frequency for processing and a third mixer is provided for extracting the fLFM signal from the time-delayed, intermediate frequency clutter and target return signals to provide, in a frequency-time domain, analog, rectangular wave, clutter and target signals. A time gate and a frequency notch filter are connected for receiving the rectangular wave clutter and target signals, the notch filter having at least one frequency notch for filtering out the rectangular wave clutter signal while passing the rectangular wave target signal when, as is most generally the case, the frequency characteristics of the clutter and target signals are different from one another. A synchronization detector provides in phase (I) and quadrature (Q) components of the target signal and an A/D converter and sampler digitizes and samples the I and Q signal components, the samples being processed in a FFT digital pulse compressor and then in a FFT doppler processor to provide range and doppler cell information.

公开(公告)号：WO1988004607A1

公开(公告)日：1988-06-30

申请号：PCT/US1987003018

申请日：1987-11-20

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  DUPONT, Preston, S. ,  RITTER, Robert, E. ,  McGRATH, Brian, A. ,  SCHAFFER, Brent, G. ,  FOUTS, Kenneth, A., III ,  STAFFORD, John, P.

IPC: B32B03/12

CPC classification number: B32B3/12 ,  B32B29/02 ,  B32B2260/021 ,  B32B2260/028 ,  B32B2260/046 ,  B32B2262/106 ,  B32B2305/024 ,  E04C2/365 ,  Y10T428/24149 ,  Y10T428/30

Abstract: A honeycomb facesheet material (10), and honeycomb (22) made therewith, wherein the facesheet includes a layer of graphite paper (14) bonded to a layer of graphite cloth (12), woven from widely spaced graphite fibers (16). The facesheet (10) is impregnated with an epoxy resin during manufacture, and the facesheet (10) is bonded to an open end of the honeycomb (22) under elevated pressure and temperature to effect curing of the epoxy resin. The graphite paper (14) supports the layer of graphite cloth (12) during handling to prevent misalignment of the fibers (16), and also effects a widely distributed bond between the fibers (16) and the underlying honeycomb (22).

公开(公告)号：WO1988004495A1

公开(公告)日：1988-06-16

申请号：PCT/US1987002668

申请日：1987-10-19

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  ROSEN, Harold, A.

IPC: H04B07/185

CPC classification number: H04B7/1853

Abstract: A satellite communications system that would allow for communication between mobile (11, 12, 14) and fixed terminals (16). The communications system includes a plurality of mobile users (11), a satellite (13) in geosynchronous orbit for providing frequency addressable uplink and downlink signals to the mobile terminals (11, 12, 14), a base station (10) for receiving signals from and transmitting signals to the satellite and a plurality of fixed users (16) coupled to the base station (10). The system provides the advantage of frequency reusability and frequency addressability in the uplink and downlink transmissions of the mobile users (11, 12, 14).

公开(公告)号：WO1988004109A1

公开(公告)日：1988-06-02

申请号：PCT/US1987002488

申请日：1987-10-01

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  BARTLEY, Steven, W.

IPC: H01Q25/02

CPC classification number: H01Q25/02

Abstract: Radar system using sum and difference signals for tracking targets, wherein the system includes aperture means (10) having a cross sectional area for transmitting energy toward a target and receiving return energy; and circuit means for generating sum and difference signals, the circuit means being selectively coupled to said aperture means, with the sum signal being generated using energy from the entire aperture means and with the difference signals being generated using return energy from the aperture means exclusive of energy from a predetermined area (H, I, J, K). The invention permits simultaneous optimization of the sum and difference signals and also suppresses the near-in sidelobes in the difference signals.

Abstract translation: 雷达系统，使用用于跟踪目标的和差信号，其中所述系统包括孔径装置（10），其具有用于向目标物发射能量并接收返回能量的横截面面积; 以及用于产生和和差信号的电路装置，所述电路装置选择性地耦合到所述光圈装置，其中所述和信号是使用来自整个光圈装置的能量产生的，并且所述差信号是使用来自所述光圈装置的返回能量产生的， 来自预定区域（H，I，J，K）的能量。 本发明允许和信号和差分信号的同时优化，并且还抑制差分信号中的近似旁瓣。