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21. 发明申请

WO1991020066A1 INTELLIGENT SIGNAL PROCESSING 审中-公开
标题翻译：智能信号处理
公开(公告)号：WO1991020066A1
公开(公告)日：1991-12-26
申请号：PCT/GB1991000962
申请日：1991-06-14
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , SINERNS, Thomas, Michael , SHARP, John
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G08C15/12
CPC分类号： G08C15/12
摘要： Intelligent signal processing circuits typically involve complex circuitry with large numbers of wire interconnections and tend to have high power requirements. An intelligent digital signal processing circuit is proposed which comprises: a) a digital signal processor (DSP); b) the interfacing of a plurality of serial data channels to the DSP with each channel being capable of converting a received analogue signal to a digital signal; c) a power supply for each channel where the power supply is modulated by a common clock signal and each channel possesses means to separate the clock signal from the power supply. For the purposes of data transmission wiring can be limited to 3 wires per channel, one for serial data, one for power and a timed pulse to synchronise data transmission and one as an earth return. Circuits produced according to the invention can handle multiple signals, real-time signal processing of incoming signals and the output of filtered signals in digitally multiplexed format.
摘要翻译：智能信号处理电路通常涉及具有大量电线互连的复杂电路，并且倾向于具有高功率要求。提出了一种智能数字信号处理电路，包括：a）数字信号处理器（DSP）; b）多个串行数据信道与DSP的接口，每个信道能够将接收的模拟信号转换成数字信号; c）用于通过公共时钟信号调制电源的每个通道的电源，并且每个通道具有将时钟信号与电源分离的装置。为了数据传输的目的，每个通道的布线可以限制为3根，一个用于串行数据，一个用于电源，定时脉冲同步数据传输，另一个用作接地回路。根据本发明制造的电路可以处理多个信号，输入信号的实时信号处理和数字多路复用格式的滤波信号的输出。

22. 发明申请

WO1991016657A1 NON-LINEAR OPTICAL DEVICE 审中-公开
标题翻译：非线性光学器件
公开(公告)号：WO1991016657A1
公开(公告)日：1991-10-31
申请号：PCT/GB1991000616
申请日：1991-04-19
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , SEDDON, Kenneth, Richard , AAKERÖY, Christer, Björn , BLAGDEN, Nicholas , PATELL, Yasmin
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G02F01/35
CPC分类号： G02F1/3611 , G02F1/3612
摘要： A non-linear optical device comprises a crystalline, second harmonic generator material mounted in the optical path of a laser, in which the crystalline material consists of a salt of a carboxylic acid and an organic nitrogenous base which has a non-centrosymmetric crystal structure.
摘要翻译：非线性光学装置包括安装在激光器的光路中的结晶二次谐波发生器材料，其中结晶材料由具有非中心对称晶体结构的羧酸盐和有机氮碱组成。

23. 发明申请

WO1991014321A1 AN OPTICAL MULTIPLEXER 审中-公开
标题翻译：光学多路复用器
公开(公告)号：WO1991014321A1
公开(公告)日：1991-09-19
申请号：PCT/GB1991000382
申请日：1991-03-11
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , SUTTON, Philip , SHAW, Andrew, Peter , DAWBER, William , HIRST, Peter, Frank , CONDON, Brian
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： H04J14/02
CPC分类号： H04B10/11 , H04J14/02
摘要： Light from a laser (10) is divided by a beam splitter (12) to provide signal (15) and reference (14) channels. The signal channel light is expanded (11) to illuminate an acousto-optic (AO) device (13). This leads to a spatial distribution of Doppler shifted frequencies. This spatial distribution then illuminates a spatial light modulator (SLM) (19) such that a number of parallel and discrete optical channels (112) emerge. In a local area network (LAN) the optical signal channels are coupled into a single mode optical fibre (22) and then heterodyned to the reference laser light from a further optical fibre (23) in an optical coupler (25). In a receiver the modulated light is detected (32) and the detected signal connected to the transducer of an AO device (35). The AO device (35) is illuminated by a receiver laser light (36) and the emerging modulated light is incident on a focal plane detector array (39) where each detector (310) then receives light corresponding to each of the transmitted channels (311). A secure free space communications system is possible by separate transmission of a delayed (43) unmodulated reference signal. The receiver is then arranged to include an identical delay (55) in the signal channels before coupling together the signal and reference channels (56) for modulating the AO cell (35). By this means the transmission delay lines (43) and the reference delay lines (55) must have delays which are equal within the coherence length of the source laser.
摘要翻译：来自激光器（10）的光由分束器（12）分开，以提供信号（15）和参考（14）通道。信号通道光被扩展（11）以照亮声光（AO）装置（13）。这导致多普勒频移的空间分布。该空间分布然后照亮空间光调制器（SLM）（19），使得出现多个平行和离散的光通道（112）。在局域网（LAN）中，光信号通道耦合到单模光纤（22）中，然后从光耦合器（25）中的另一光纤（23）外参考到参考激光。在接收机中，检测调制的光（32），并且检测到的信号连接到AO设备（35）的换能器。 AO器件（35）被接收器激光（36）照射，并且出现的调制光入射到焦平面检测器阵列（39）上，其中每个检测器（310）然后接收与每个发送的通道（311）相对应的光）。可以通过单独传输延迟（43）未调制的参考信号来实现安全的自由空间通信系统。然后，接收器被布置为在将信号和参考通道（56）耦合在一起以用于调制AO单元（35）之前在信号通道中包括相同的延迟（55）。通过这种方式，传输延迟线（43）和参考延迟线（55）必须具有在源激光器的相干长度内相等的延迟。

24. 发明申请

WO1991014271A1 PERROMAGNETIC MATERIALS 审中-公开
公开(公告)号：WO1991014271A1
公开(公告)日：1991-09-19
申请号：PCT/GB1991000346
申请日：1991-03-05
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , COCKAYNE, Brian , MacEWAN, William, Ritchie , HARRIS, Ivor, Rex , SMITH, Nigel, Andrew
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： H01F01/04
CPC分类号： H01F1/0311
摘要： This invention provides a ferromagnetic material Fe60MxNy where M is at least one element selected from A1, Ga, In and Tl, N is at least one element selected from P, As, Sb and Bi, x has a range of 1
摘要翻译：本发明提供一种铁磁材料Fe60MxNy，其中M是选自A1，Ga，In和T1中的至少一种元素，N是选自P，As，Sb和Bi中的至少一种元素，x具有1×

25. 发明申请

WO1991012277A1 POLYMERISATION OF OLEFINIC-CONTAINING MONOMERS EMPLOYING ANIONIC INITIATORS 审中-公开
标题翻译：含有烯烃单体的聚合反应
公开(公告)号：WO1991012277A1
公开(公告)日：1991-08-22
申请号：PCT/GB1991000187
申请日：1991-02-06
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , SHEPHERD, Neil , STEWART, Malcolm, John
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： C08F04/46
CPC分类号： C08F36/04 , C07F7/1804 , C08F4/468 , C08F4/72
摘要： Process for anionically polymerizing a conjugated 1,3-diene monomer consists of contacting the monomer in an inert hydrocarbon solvent with a monofunctional silyl ether initiator of general formula R1R2R3Si-O-A-Li where R1 to R3 are independently selected from monovalent organic substituent groups and A is a short chain hydrocarbon bridging group, to yield a polydiene having a molecular weight of typically 1,000-10,000, a high 1.4 content of typically 90% and a low polydispensity of typically 1.15. The reactive ends of the living polymer chains may be terminated with a reactive group such as hydroxyl by treating the polymer with ethylene oxide. Subsequent removal of the polymer's relatively unreactive silyl end groups by reaction with tetra-n-butylammonium fluoride produces a difunctional, chain-extendable, hydroxy-terminated polydiene useful as a rubbery binder prepolymer.

26. 发明申请

WO1991005403A1 OSCILLATOR 审中-公开
标题翻译：振荡器
公开(公告)号：WO1991005403A1
公开(公告)日：1991-04-18
申请号：PCT/GB1990001539
申请日：1990-10-05
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , LEWIS, Meirion, Francis , WIGHT, David, Robert
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： H03B17/00
CPC分类号： H03B17/00
摘要： A single frequency oscillator (10) comprises a laser diode (12), a fibre optic bundle (22) acting as a delay line filter, a photodiode (26) and a feedback loop to the laser diode (12) containing an amplifier (28) and additional low Q filtering (29, 34). The laser diode output (18) bears a modulation signal which is filtered to a series of "resonant" or synchronous frequencies by the bundle (22), converted back to an electrical signal by the diode (26), amplified, and reduced to a single resonant frequency by the low Q filtering (29, 34). It is then applied to the laser diode (12) as positive feedback to modulate the diode output (18). The output of the oscillator (10) can be taken as a microwave signal or on an optical carrier. The invention provides an oscillator incorporating feedback on an optical carrier.
摘要翻译：单频振荡器（10）包括激光二极管（12），用作延迟线滤波器的光纤束（22），光电二极管（26）和到激光二极管（12）的反馈环路，该激光二极管包含放大器）和附加的低Q滤波（29,34）。激光二极管输出（18）承载调制信号，该调制信号被束（22）滤波成一系列“共振”或同步频率，由二极管（26）转换回电信号，放大并被减小为单谐振频率由低Q滤波（29,34）。然后将其作为正反馈施加到激光二极管（12）以调制二极管输出（18）。振荡器（10）的输出可以作为微波信号或光载波。本发明提供了一种在光载波上并入反馈的振荡器。

27. 发明申请

WO1991004578A1 OHMIC CONTACTS FOR GaAs AND GaAlAs 审中-公开
标题翻译： GaAs和GaAlAs的OHMIC联系
公开(公告)号：WO1991004578A1
公开(公告)日：1991-04-04
申请号：PCT/GB1990001382
申请日：1990-09-07
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , GILL, Sukhdev, Singh , CROUCH, Mark, Anthony , DAWSEY, John, Robert
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： H01L29/40
CPC分类号： H01L29/452
摘要： A low resistance ohmic contact for n-type GaAs and GaAlAs is provided by Ni-Ge-Au structure (1). The contact is suitable for device substrates (2) which have carrier concentrations of between about 10 cm and about 10 cm . The ohmic contact has a nickel layer of between 40 ANGSTROM and 200 ANGSTROM deposited on the substrate, followed by a Ge deposition (4) of between 150 ANGSTROM and 400 ANGSTROM and finally an Au deposition (5, 6) of greater than 4000 ANGSTROM . The Au layer is preferably deposited in two separate layers of between 500 ANGSTROM and 1000 ANGSTROM , (5), and greater than 4000 ANGSTROM , (6). A preferred construction (1) is 50 ANGSTROM /200 ANGSTROM /800 ANGSTROM + 5000 ANGSTROM (Ni/Ge/Au + Au). The ohmic contact deposition must be followed by annealing, typically at temperatures between 300 DEG C and 500 DEG C for times of between 1 second and 200 seconds. The preferred annealing conditions are a temperature of 400 DEG C maintained for 15 seconds.
摘要翻译： Ni-Ge-Au结构（1）提供了n型GaAs和GaAlAs的低电阻欧姆接触。接触适用于载体浓度介于约10 17 cm -3和约10 19 cm -3之间的器件衬底（2）。欧姆接触具有沉积在衬底上的40和200之间的镍层，随后是150和400之间的Ge沉积（4），最后是大于4000Ag的Au沉积（5,6）。 Au层优选沉积在500和1000之间的两个分开的层中，（5）和大于4000，（6）。优选的结构（1）为50 / ANGSTROM / 200 ANGSTROM + 5000 ANGSTROM（Ni / Ge / Au + Au）。欧姆接触沉积之后必须进行退火，通常在300〜500℃的温度下进行1秒〜200秒的时间。优选的退火条件是保持在1500℃的温度15秒。

28. 发明申请

WO1991001589A1 POWER SUPPLY INVERSION 审中-公开
标题翻译：电源逆变器
公开(公告)号：WO1991001589A1
公开(公告)日：1991-02-07
申请号：PCT/GB1990001083
申请日：1990-07-13
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , THOMAS, Andrew, James
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： H02M07/48
CPC分类号： H02M7/4807
摘要： A power supply inverter for providing an AC output from a DC power supply. Conventional power supply inversion involves the use of bulky transformers. By using high frequency transformers which are small and light a DC power supply is converted into at least two high frequency AC outputs of different frequency. Processing and filtering the outputs followed by conversion to a bipolar waveform produces an AC power supply which is the difference of the outputs so that for example AC outputs of 50,000 Hz and 50,050 Hz produce an AC power supply of 50 Hz. Uses include back-up power supplies for computers etc. and power supplies for electric tools where mains supply is not available.
摘要翻译：一种用于从DC电源提供AC输出的电源逆变器。传统的电源倒相涉及使用庞大的变压器。通过使用小而轻的高频变压器，将直流电源转换成不同频率的至少两个高频交流输出。对输出进行处理和滤波，然后转换为双极波形产生交流电源，这是输出的差异，因此例如50,000 Hz和50,050 Hz的交流输出产生50 Hz的交流电源。用途包括电脑备用电源等，电动工具电源不可用。

29. 发明申请

WO1990016000A1 TRAJECTORY MEASUREMENT OF PROJECTILES 审中-公开
标题翻译：项目进度测量
公开(公告)号：WO1990016000A1
公开(公告)日：1990-12-27
申请号：PCT/GB1990000923
申请日：1990-06-15
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , TATE, John
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G01S13/00
CPC分类号： G01S13/003
摘要： A method of three dimensional trajectory measurement of a metallic projectile in a dielectric medium in which microwave energy is transmitted at the projectile and the signal received at a number of receivers is analysed to compute three dimensional flight characteristics of the projectile.

30. 发明申请

WO1990015972A1 COLOUR MONITORING 审中-公开
标题翻译：颜色监控
公开(公告)号：WO1990015972A1
公开(公告)日：1990-12-27
申请号：PCT/GB1990000924
申请日：1990-06-15
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , JAWAD, Sajad, Mohammed , ALDER, John, Frederick
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G01J03/50
CPC分类号： G01N21/255 , G01J2001/1636 , G01J2001/444 , G01J2001/446 , G01N21/274 , G01N21/783 , G01N2201/0695 , G01N2201/082 , G01N2201/12753
摘要： Colour changes in a target, such as a chemical sensor using a colour-changing indicator reagent to detect the presence of a poisonous gas, are continuously monitored by reflecting the target (10) on to a sensor (16) light originating from first one and then another light source (12a, 12b, etc), each having a different, known emission wavelength. In each cycle, direct light from the appropriate source is also collected by another sensor (14), connected in a closed loop (26) with circuitry in which the emission intensity is compared with a known reference value (38) and which adjusts the emission intensity so as to stabilise it at this constant reference value. Once this is stabilised, the reflected light intensity signal is passed to a data store (20), after which a divider (22) produces an output signal (36) representing the ratio of the reflected light intensities in two separate cycles originating from two different light sources (12a, 12b, etc). The conduct of each cycle is controlled by timing means (18). Where there are two light sources, the wavelength of the second (12b) is outside the response range of the target, that of the first (12a) being at or near the peak target response, so that all the divider output signals represent successive values of actual reflected light intensity. These signals can be processed to show the rate of colour change in the target and used to operate e.g. an alarm.
摘要翻译：通过将目标（10）反射到传感器（16）上来连续地监测目标物中的颜色变化，例如使用变色指示剂来检测有毒气体的存在的化学传感器，然后是另一个光源（12a，12b等），每个具有不同的已知发射波长。在每个周期中，来自适当源的直射光也被另一传感器（14）收集，该传感器连接在闭环（26）中，其中发射强度与已知参考值（38）进行比较，并且其调节发射强度以便将其稳定在该恒定的参考值。一旦稳定，反射光强度信号被传递到数据存储器（20），之后分频器（22）产生一个输出信号（36），该输出信号表示来自两个不同的两个不同周期的反射光强度的比率光源（12a，12b等）。每个周期的行为由定时装置（18）控制。在存在两个光源的地方，第二（12b）的波长在目标的响应范围之外，第一（12a）的波长处于或接近峰值目标响应，使得所有分频器输出信号表示连续的值的实际反射光强度。可以处理这些信号以显示目标中颜色变化的速率，并用于操作。一个闹钟

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