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101. 发明专利

JPH02132981A METHOD AND DEVICE FOR PROCESSING SIGNAL 失效
公开(公告)号：JPH02132981A
公开(公告)日：1990-05-22
申请号：JP15938789
申请日：1989-06-21
申请人： MARCONI GEC LTD
发明人： SAIMON HAWAADO SUPENSAA
IPC分类号： H04N5/21 , H03D1/00 , H04N5/217
摘要： PURPOSE: To remove a noise, and to extract a valid signal by operating a filter processing for holding a signal including upper and lower side wavebands including valid information and a sampling frequency, and demodulating it by a balanced demodulator. CONSTITUTION: A signal sampling-processed and scanned from a CCD array is transmitted to a high-pass filter 1. A low frequency is interrupted in the filter 1, and this low frequency part includes a large part of noises and raw signal information. A signal passing through the filter 1 is transmitted through a low-pass filter 2, amplified by an amplifier 3, and transmitted to a balanced demodulator 4. The demodulator 4 operates as a detector similar to an RF detector, and a modulated wave is detected from a carrier wave signal. In this stage, a certain amount of residual noises are included. The signal is amplified by an amplifier 5, and transmitted through a low-pass filter 6 so that the most of the noises can be eliminated.

102. 发明专利

JPH0286229A COMMUNICATION SYSTEM 失效
公开(公告)号：JPH0286229A
公开(公告)日：1990-03-27
申请号：JP15354889
申请日：1989-06-15
申请人： MARCONI GEC LTD
发明人： DEIBUITSUDO GURAHAMU PADOJII
IPC分类号： H04B7/155 , H04B7/26 , H04Q7/36
摘要： PURPOSE: To enlarge a distance between ground stations allocated to adjacent channels by allocating respective base stations so that they operate by one of nine communication channels and regularly and geographically distributing them. CONSTITUTION: The plural base stations arranged for communication with a moving terminal are provided. The communication channels are allocated so that the respective base stations operate by one of the nine communication channels. The base stations are regularly and geographically distributed. In the allocation of the channels, six channels are distributed in a hexagonal form and the seventh channel is positioned in the center. The remaining two channels are separated from the seventh channel further apart from the channels arranged in the hexagonal form distribution. Thus, a large geographical interval can be provided between the ground stations operating by the same channel and between the ground stations operating by the adjacent channels.

103. 发明专利

JPH0279809A LENS SYSTEM 失效
公开(公告)号：JPH0279809A
公开(公告)日：1990-03-20
申请号：JP20565988
申请日：1988-08-18
申请人： MARCONI GEC LTD
发明人： RONARUDO SHIYUUMUSUKII
IPC分类号： G02B1/02 , G02B13/14
摘要： PURPOSE: To make it possible to form an image on a common image plane over specified two light wave bands and to form a lens system from just tow kinds of materials by forming one optical path by one or more lens elements composed of zinc selenide and one or more lens elements composed of zinc sulfide or cesium bromide. CONSTITUTION: The lens systems has the first lens 1 composed of the zinc selenide and the second lens 2 composed of the zinc sulfide. A diaphragm 3 is disposed in front of these lenses 1, 2 so that the transmitted rays gather at the focus of the image plane 4. The lens system is so constituted as to exhibit a conjugation ratio, i.e., ratio of an object and the image plane of 2:1. The lens system which forms the image of 0.5 times the size of the object and brings about the imaging performance of the proximity diffraction limitation on the optical axis over a transmission wave band of 3 to 5μm and 8 to 12μm is obtd. according to this constitution As a result, the image good in both of the prescribed wave bands is formed by just two kinds of the different materials.

104. 发明专利

JPH0215234A FREQUENCY SELECTION OPTICAL FILTER 失效
公开(公告)号：JPH0215234A
公开(公告)日：1990-01-18
申请号：JP5181089
申请日：1989-03-03
申请人： MARCONI GEC LTD
发明人： RICHIYAADO KEISU HAWAADO
IPC分类号： G02C7/10 , A61F9/02 , G02B5/20
摘要： PURPOSE: To make the filter suitable for the protection of the eye against a laser by making the concave surface of a 1st lens conform to the convex surface of the 2nd lens, equalizing the total power of the 1st and 2nd lenses to zero, and providing a diffracting mirror coating for the isometric interface between the 1st and 2nd lenses. CONSTITUTION: This filter is equipped with the 1st meniscus lens 17 with negative power and the 2nd meniscus lenses 23 and 27 having positive power, the concave surface 17b of the 1st lens conforms to the convex surface 23a of the 2nd lenses 23 and 27, and the total power of the 1st lens 17 and 2nd lenses 23 and 27 is equalized substantially to zero. Then the diffracting mirror coating 21 is formed on the isometric interface between the 1st lens 17 and 2nd lenses 23 and 27. Here, the fringe of holography record formed of a mirror 21 is isometric to the glass concave surface 17b and the holography mirror 21 reflects with wavelength equal to wavelength which is optically a menance. Further, the reflection preventiveness of a coating 19 provided on the external surface 17a of the 1st lens 17 contributes to the constitution of a hologram and the performance of the device.

105. 发明公开

EP0790487A3 Aircraft terrain advisory system 失效
标题翻译：飞机土地信息系统
公开(公告)号：EP0790487A3
公开(公告)日：1998-09-30
申请号：EP97301067
申请日：1997-02-19
申请人： MARCONI GEC LTD
发明人： HENLEY ANTHONY JOHN MICHAEL
IPC分类号： G01C23/00 , G05D1/06 , G08G5/04 , G01C5/00
CPC分类号： G08G5/045 , G01C23/005 , G05D1/0646 , G08G5/0086
摘要： A terrain advisory system for an aircraft (A) comprises a processor (11) which compares terrain information, accessed from a memory means 13 according to data from a navigation means (12), with dynamic flight parameters from a monitor (14) for the aircraft (A). The processor (11) also generates a trajectory signal and a pull-up signal to indicate, on a display means (15), the current aircraft trajectory relative to a line constructed from notional pull up trajectories for the aircraft (A) which avoid a predetermined clearance height without exceeding a predetermined acceleration acting on the aircraft during a pull up manoeuvre.

106. 发明公开

EP0693747A3 An apparatus for cancelling vibrations 失效
标题翻译：安排振动抑制
公开(公告)号：EP0693747A3
公开(公告)日：1997-12-29
申请号：EP95304332
申请日：1995-06-21
申请人： MARCONI GEC LTD
发明人： SWINBANKS MALCOLM ALEXANDER
IPC分类号： F16F15/02 , G05D19/02 , G10K11/16 , G10K11/178
CPC分类号： G10K11/178 , G10K2210/1281 , G10K2210/3018 , G10K2210/3025 , G10K2210/3042 , G10K2210/3045 , G10K2210/3051
摘要： An apparatus for cancelling vibrations comprising: means for providing a reference signal representative of the vibrations to be cancelled; filter means (5) comprising means (13) for resolving the reference signal into its frequency components, means (15) for applying weights to these frequency components, and means (17) for combining the weighted frequency components to provide an output signal of said filter means (5); and actuator means (1) responsive to said output signal to produce vibrations which destructively interfere with the vibrations to be cancelled, said means (13) for resolving utilising N updates of said reference signal to resolve it into its frequency components, said means (13) for resolving being updated by n times between successive resolutions of the reference signal into its frequency components where 1

107. 发明专利

FR2898191A1 SYSTEME D'IDENTIFICATION MILITAIRE" 未知
公开(公告)号：FR2898191A1
公开(公告)日：2007-09-07
申请号：FR9313739
申请日：1993-11-16
申请人： MARCONI GEC LTD
发明人： WISBEY PHILIP HENRY , KIMBER PAUL KEVIN , FORSTER IAN
IPC分类号： G01S13/78 , F41G7/26 , F42C15/44 , G01S17/74 , H04B10/26
摘要： Un système d'identification militaire I.F.F. (identification ami ou ennemi) comprend un émetteur (2) monté sur une munition d'engin (1) afin d'émettre un signal d'interrogation. Un émetteur-récepteur (5) destiné à être associé à une cible possible amie agit, dès réception du signal d'interrogation, en modulant ce signal et en le réfléchissant sur la munition, avec une information indicative du statut d'ami de la cible, la munition agissant en se désarmant dès réception de ce signal.

108. 发明专利

GB9815143D0 A submarine comprising a launcher for a stone 未知
公开(公告)号：GB9815143D0
公开(公告)日：2003-11-12
申请号：GB9815143
申请日：1998-07-14
申请人： MARCONI GEC LTD

109. 发明专利

GB2335077B Radiation detectors 未知
公开(公告)号：GB2335077B
公开(公告)日：2003-05-28
申请号：GB9804589
申请日：1998-03-04
申请人： MARCONI GEC LTD , BAE SYS ELECTRONICS LTD
发明人： PARSONS ANDREW DUNCAN , SHORROCKS NICHOLAS MARTIN , HURLEY JOANNE , HOLME MATTHEW DALE
IPC分类号： G01J5/34 , H01L37/02
摘要： A thermal imaging device comprises an array of microbridges(10) disposed on a silicon readout circuit substrate (12). Each microbridge (10) is supported above the substrate (12) by electrodes (14 and 16) so that a cavity (26) is present between the microbridge (10) and the substrate (12). Each microbridge (10) has a collecting area, a region of which is occupied by a ferroelectric active element (20) which converts to received thermal radiation into an electrical response. Radiation which is received by regions of the collecting area not occupied by the active element (20) is converted into heat energy and then transmitted to the active element (20) by conduction.

110. 发明专利

GB2336914B Environmental stress screening 未知
公开(公告)号：GB2336914B
公开(公告)日：2002-05-08
申请号：GB9809535
申请日：1998-05-02
申请人： MARCONI GEC LTD , BAE SYS ELECTRONICS LTD
发明人： MASON PHILIP JAMES
IPC分类号： G01N3/60 , G01N3/18 , G01N25/00 , G01N25/72

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