公开(公告)号：US20180131080A1

公开(公告)日：2018-05-10

申请号：US15572308

申请日：2016-06-03

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： STEPHEN JOHN BOYES

IPC: H01Q1/27 ,  H01Q3/34 ,  H01Q21/06

CPC classification number: H01Q1/273 ,  H01Q3/34 ,  H01Q21/062 ,  H01Q21/067

Abstract: A body-wearable antenna system is described that comprises at least two antenna elements (2, 4) arranged to be mountable in a substantially equi-spaced distributed array around a user's body. Each antenna element is a directional type antenna and the antenna system is configurable such that when worn the antenna elements operate in phase to deliver a combined, higher gain, omnidirectional performance radiating away from the user's body, compared to one or more conventional body-worn omnidirectional antennas. The antenna system can operate in transmit and receive. Each antenna element may be a planar inverted-F antenna (PIFA) housed in a protective radome (3, 5). Each PIFA may feature at least one slot cut into the radiating top plate or at least one parasitic radiator, or a combination of both, to allow operation within distinct frequency bands and with predetermined impedance bandwidth.

公开(公告)号：US20160258212A1

公开(公告)日：2016-09-08

申请号：US15032063

申请日：2014-10-23

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： DUNCAN GODFREY MERVYN THOMPSON

IPC: E06B9/56 ,  E04H15/58 ,  E06B9/58 ,  E06B9/64 ,  E06B9/60

CPC classification number: E06B9/66 ,  A62C2/10 ,  A62C2/248 ,  E04H15/58 ,  E06B9/56 ,  E06B9/581 ,  E06B9/60 ,  E06B9/64 ,  E06B9/68

Abstract: A roller door system (100) particularly for opening and closing a doorway (120) defined in the wall of a lightweight structure (110) such as a marquee, hangar, field hospital, emergency shelter and the like. The door system comprises a rollable door (150) secured, in use, along one edge of the doorway (152); a roller (140) for rolling and unrolling the rollable door about the roller; an opening mechanism and a closing mechanism for controlling the deployment of the rollable door by translating the roller across the doorway; and reusable sealing means (135, 136, 155, 156) for sealing between the lateral margins of the rollable door and the doorway; characterised in that the rollable door comprises a plurality of collapsible hoses (165, 166) connected to a pressurised fluid power system (160, 161, 163) such that in use a positive pressure applied to the fluid power system causes the rollable door to unroll from the roller and controls the deployment of the rollable door.

Abstract translation: 一种辊门系统（100），特别是用于打开和关闭限定在轻型结构（110）的壁中的门（120），所述轻质结构（110）如大厅，机库，现场医院，紧急避难所等。 门系统包括在使用中沿着门口（152）的一个边缘固定的可滚动门（150）。 用于滚动并滚动滚轮的滚筒（140）; 打开机构和关闭机构，用于通过使辊跨越门口来控制可滚动门的展开; 以及可重复使用的密封装置（135,136,155,156），用于在可滚动门的侧边缘和门口之间进行密封; 其特征在于，所述可滚动门包括连接到加压流体动力系统（160,161,163）的多个可折叠软管（165,166），使得在使用中施加到所述流体动力系统的正压使所述可滚动门展开 从辊子和控制可滚动门的部署。

公开(公告)号：US20150369694A1

公开(公告)日：2015-12-24

申请号：US14764265

申请日：2014-01-31

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： MICHAEL STUART NEALE ,  LUCY SARAH ALLANSON-BAILEY

IPC: G01M7/08 ,  G01L5/00

CPC classification number: G01M7/08 ,  G01L5/00 ,  G01L5/0052 ,  G09B23/32

Abstract: The present application is concerned with a system for assessing injury risk or damage to an object in response to a blunt impact, and especially skull fracture risk beneath a helmet in response to a blunt impact. The application is also concerned with the use of a force sensor for evaluating the response of materials for use in a helmet shell to a blunt impact.

Abstract translation: 本申请涉及一种用于评估受到钝性冲击的伤害风险或对物体的损害的系统，特别是对头盔的头骨骨折风险，以应对钝的影响。 该应用还涉及使用力传感器来评估用于头盔外壳中的材料对钝影的响应。

公开(公告)号：US20150291747A1

公开(公告)日：2015-10-15

申请号：US14413458

申请日：2013-07-12

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Matthew Adrian Brown ,  Sarah Adele Donovan ,  Michelle Silverstone Lang

IPC: C08J5/18 ,  H01B3/44 ,  C08K3/08 ,  B29C47/00 ,  C08K3/22

CPC classification number: C08J5/18 ,  B29B7/90 ,  B29C43/222 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/0076 ,  B29C47/04 ,  B29C47/1018 ,  B29C47/1027 ,  B29C47/8845 ,  B29C2947/92219 ,  B29C2947/92714 ,  B29K2025/06 ,  B29K2105/122 ,  B29K2105/124 ,  B29K2105/162 ,  B29K2505/00 ,  B29K2505/14 ,  B29K2995/0006 ,  C08J2325/06 ,  C08K3/08 ,  C08K3/22 ,  C08K2003/0806 ,  C08K2003/2241 ,  H01B3/442 ,  H01G4/14 ,  H01G4/18 ,  H01G4/206

Abstract: The invention provides a process of making a continuous freeform thermoplastic dielectric film (25) that is evenly loaded with dispersed nanoparticles comprising the steps of; feeding thermoplastic granules (21) into an extruder (23), injecting a secondary feed (27) comprising a suspension of nanoparticles in a liquid carrier to create a nanocomposite, and extruding said composite onto cooled rollers (26) at a preset rate thereby enabling the crystalline structure of the nanocomposite film (25) to be controlled wherein the secondary feed (27) is mixed continuously by an ultrasonicator (29) whilst being injected into the extruder (23). By selecting the size of the nano particles based on their de Broglie wavelength in the crystalline polymer the dielectric can be produced in bulk to make high capacitance high energy density storage capacitors

Abstract translation: 本发明提供一种制备均匀负载分散纳米颗粒的连续自由形状热塑性介电膜（25）的方法，包括以下步骤： 将热塑性颗粒（21）加入到挤出机（23）中，将包含纳米颗粒悬浮液的二次进料（27）注入液体载体中以产生纳米复合材料，并以预设的速率将所述复合材料挤出到冷却的辊（26）上，从而使得 待控制的纳米复合膜（25）的晶体结构，其中二次进料（27）在被注入挤出机（23）的同时由超声波激光器（29）连续混合。 通过在结晶聚合物中基于其德布罗意波长选择纳米颗粒的尺寸，可以批量生产电介质，以制造高电容高能量密度存储电容器

公开(公告)号：US20010028426A1

公开(公告)日：2001-10-11

申请号：US09740260

申请日：2000-12-20

Applicant: The Secretary of State for Defence

Inventor： Guy Peter Bryan-Brown ,  Carl Vernon Brown ,  John Clifford Jones

IPC: G02F001/1337

CPC classification number: G02F1/13378 ,  G02F1/139 ,  G02F1/1391 ,  G02F1/1392 ,  G02F1/1396 ,  G02F2001/133765

Abstract: A bistable nematic liquid crystal device cell is provided with a surface alignment grating on at least one cell wall and a surface treatment on the other wall. Such treatment may be a homeotropic alignment or a planar alignment with or without an alignment direction, and zero or a non zero pretilt. The surface profile on the monograting is asymmetric with its groove height to width selected to give approximately equal energy within the nematic material in its two allowed alignment arrangements. The monograting may be formed by a photolithographic process or by embossing of a plastics material. The cell is switched by dc pulses coupling to a flexoelectric coefficient in the material, or by use of a two frequency addressing scheme and a suitable two frequency material. Polarisers either side of the cell distinguish between the two switched states. The cell walls may be rigid or flexible, and are coated with electrode structures, e.g. in row and column format giving an x,y matrix of addressable pixels on the cell.

Abstract translation: 双稳向列型液晶器件单元在至少一个单元壁上设置有表面对准光栅并在另一个壁上具有表面处理。 这种处理可以是垂直排列或具有或不具有取向方向的平面对准，以及零或非零预倾斜。 在单一研磨中的表面轮廓是不对称的，其槽高度被选择为在其两个允许的对准装置中在向列型材料内产生大致相等的能量。 单晶化可以通过光刻工艺或通过塑料材料的压花形成。 电池通过耦合到材料中的柔性电系数的直流脉冲或通过使用双频寻址方案和合适的两频率材料来切换。 电极的两侧的极化器区分两个切换状态。 细胞壁可以是刚性的或柔性的，并且涂覆有电极结构，例如， 以行和列格式给出单元格上的可寻址像素的x，y矩阵。

公开(公告)号：US20240373161A1

公开(公告)日：2024-11-07

申请号：US18556982

申请日：2022-04-20

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Gregory Singleton ,  Phillip Henry Glasson

IPC: H04R3/00 ,  H04R1/40 ,  H04R3/12

Abstract: A method and system is provided for processing audio information in a digital signal processor, where the audio information is either received from a microphone array or applied to a loudspeaker array. The digital signal processor applies a double delay-and-subtract beamforming algorithm to two non-collinear pairs of microphone outputs or loudspeaker inputs to provide an array with improved directionality and more uniform signal rejection away from the main beam of the beam formed signal. This can be further improved by tessellating multiple arrays into a macro-array and superimposing their responses.

公开(公告)号：US12110307B2

公开(公告)日：2024-10-08

申请号：US17280240

申请日：2019-10-29

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Andrew Russell ,  Wayne Cord Hayes ,  Mark Rodney Sambrook ,  Flavien Leroux ,  Aaron Acton ,  Antonio Feula ,  Alexander Gabriel Gavriel

IPC: C07F9/50 ,  A62D3/30 ,  C07F9/54 ,  C07F9/70 ,  G01N31/22

CPC classification number: C07F9/5031 ,  A62D3/30 ,  C07F9/5022 ,  C07F9/5442 ,  C07F9/70

Abstract: The present invention is concerned with self-immolative recognition and/or responsive systems for electrophilic compounds, especially alkylating agents, which systems may comprise disclosure or detection of the alkylating agent. The present invention is especially concerned with non-protic triggered self-immolative systems, molecules, and methods, and in particular for detection of non-protic electrophilic agents, and especially alkylating agents, for example alkyl or benzylic halides, which may be found in pesticides or fumigants, or chemical warfare agents.

公开(公告)号：US12022210B2

公开(公告)日：2024-06-25

申请号：US17907588

申请日：2021-03-26

Applicant: The Secretary of State for Defence

Inventor： Sean Michael Tsi-ong Tipper

IPC: H04N25/40 ,  H04N25/779

CPC classification number: H04N25/40 ,  H04N25/779

Abstract: Techniques for detecting pulsed radiation. A CMOS sensor array being irradiated across at least a portion of the array with pulsed radiation is addressed using a rolling shutter operation. The sensor array is read to extract the integrated energy from each sensor element and convert the integrated energy into a pixel value for a pixel in a radiation image. A pulse detection operation is then applied to the radiation image to obtain a pulse repetition frequency of the pulsed radiation. The pulse detection operation includes extracting a beat signal, calculating a beat frequency and peak to trough ratio from the beat signal, and determining the pulse repetition frequency therefrom. Particularly suited to the technical field of pulsed laser detection. Also relates to a pulse detector for the same.

公开(公告)号：US11920978B2

公开(公告)日：2024-03-05

申请号：US17054411

申请日：2019-05-22

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Sean Michael Tsi-Ong Tipper ,  Christopher David Burgess

IPC: G01J1/44 ,  G01J1/42 ,  G02B26/02

CPC classification number: G01J1/44 ,  G02B26/02 ,  G01J2001/4238 ,  G01J2001/448

Abstract: A method of detecting pulsed radiation comprising the steps of irradiating at least a portion of an array of sensor elements with pulsed radiation (71); addressing the array using a rolling shutter operation (72); reading the array to obtain a radiation image (73); and then applying a pulse detection operation (74) to the radiation image. The rolling shutter operation (72) is configured to address each element line of the array for a predetermined integration period. The predetermined integration period being calculated using an integration period function, itself a function of an anticipated pulse repetition interval of the pulsed radiation. The method and apparatus for the same enable low cost camera arrays to be used for pulse detection and for wider application in the field of low cost communications.

公开(公告)号：US20240019231A1

公开(公告)日：2024-01-18

申请号：US18304038

申请日：2023-04-20

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Peter Richard Rushforth

IPC: F41H11/12 ,  F42B12/36

CPC classification number: F41H11/12 ,  F42B12/36

Abstract: A projectile for piercing a casing of a mine containing an explosive material. The projectile includes a projectile body having a nose portion and a tail portion and a longitudinal axis, a switch, and electrodes separated such that in use an electrical discharge can flow between them through an explosive material contained within a mine, or to initiate an energetic material provided between the electrodes to detonate an explosive material contained within a mine. Also provided is a method of mine disposal.