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1. 发明申请

WO2023088727A1 RADIO FREQUENCY SWITCH DRIVER 审中-公开
公开(公告)号：WO2023088727A1
公开(公告)日：2023-05-25
申请号：PCT/EP2022/081081
申请日：2022-11-08
申请人： ICEYE OY
发明人： OSSIF, Sergei
IPC分类号： H03K17/0412 , H03K17/693 , H03K17/76 , H03K17/687 , H03K17/689 , H04B1/44
摘要： An RF switching circuit for switching RF signals, the RF switching circuit comprises one or more RF switch drivers and one or more RF switches, the RF switch drivers configured to drive the one or more RF switches by supplying power to the one or more RF switches, the RF switch driver comprising an isolated gate driver comprising one or more inputs, one or more outputs, and electrical separation between the input circuitry and the output circuitry of the isolated gate driver, the RF switch driver configured to receive an input signal indicating when the one or more RF switches should be turned on and/or off, and to send in response an appropriate signal at the appropriate voltage to the one or more RF switches to turn them on or off according to the input signal.

2. 发明申请

WO2023020896A1 IMAGE DIFFERENCE IDENTIFICATION 审中-公开
公开(公告)号：WO2023020896A1
公开(公告)日：2023-02-23
申请号：PCT/EP2022/072363
申请日：2022-08-09
申请人： ICEYE OY
发明人： FRIBERG, Tapio
IPC分类号： G06T7/00 , G06T7/11 , G06T7/174
摘要： A computer-implemented method for identifying one or more changes across a plurality of images, the method comprising: receiving, at a convolutional neural network, CNN, encoder, CNN input data comprising data associated with each pixel of each of the plurality of images; propagating the CNN input data through the CNN encoder to generate a plurality of feature maps, wherein each feature map comprises a feature classification of each pixel of a respective image of the plurality of images according to a feature classification scheme, wherein the feature classification scheme comprises a plurality of classifications and is generated by the CNN encoder based on training data; receiving, at a ConvLSTM network, ConvLSTM input data comprising the plurality of feature maps generated by the CNN encoder; and propagating the ConvLSTM input data through the ConvLSTM network to generate a change map, wherein the change map comprises change data indicative of one or more changes across the plurality of images.

3. 发明申请

WO2022243657A1 RANDOM NUMBER GENERATION IN QUANTUM KEY DISTRIBUTION 审中-公开
公开(公告)号：WO2022243657A1
公开(公告)日：2022-11-24
申请号：PCT/GB2022/051193
申请日：2022-05-11
申请人： ARQIT LIMITED
发明人： YEOMANS, Andrew , IQBAL, Omar , DAVID, Bestwick
IPC分类号： H04L9/08
摘要： A method of operating a quantum key distribution (QKD) system comprising: using at least one quantum random number generator (QRNG) to generate a random number string, and storing the random number string; providing the random number string to a first cryptographically secure pseudo-random number generator (CSPRNG) which uses random numbers of the random number string as seeds to generate respective first strings of pseudo-random numbers; using the first strings of pseudo-random numbers to encode photons or pulses transmitted by a transmitter of the QKD system; after a predetermined delay, providing the stored random number string to a second CSPRNG which uses random numbers of the random number string as seeds to generate respective second strings of pseudo-random numbers, the second CSPRNG being identically configured to the first CSPRNG; using the second strings of pseudo-random numbers, together with information regarding encoded photons or pulses received by a receiver of the QKD system, to carry out raw key agreement and post processing to agree secure keys between the transmitter and the receiver.

4. 发明申请

WO2022162382A1 QKD SWITCHING SYSTEM AND PROTOCOLS 审中-公开
公开(公告)号：WO2022162382A1
公开(公告)日：2022-08-04
申请号：PCT/GB2022/050234
申请日：2022-01-28
申请人： ARQIT LIMITED
发明人： YEOMANS, Andrew , BURN, Daryl , WILLIAMS, David
IPC分类号： H04L9/08
摘要： Methods, apparatus, and systems are provided for quantum key distributed (QKD) linking apparatus and system for use with at least two end point devices for linking said endpoint devices in a QKD network. The QKD linking apparatus including a plurality of QKD links, each QKD link having a communication medium comprising a quantum channel and a classical channel, wherein each endpoint is assigned a QKD link connecting said each endpoint to the QKD linking apparatus, a quantum communication component comprising a plurality of quantum transmitters and/or a plurality of quantum receivers. Each quantum transmitter is configured for transmitting quantum transmissions over a quantum channel of one of the QKD links. Each quantum receiver is configured for receiving quantum transmissions over a quantum channel of one of the QKD links. The QKD linking apparatus including a classical transceiver component comprising a plurality of classical transceivers, each classical transceiver configured for transmitting classical data over a classical channel of one of the QKD links and configured for receiving classical data over the classical channel of said one of the QKD links. The QKD linking apparatus including a controller connected to the quantum communication component and the classical transceiver component, the controller configured to: route or switch data generated for quantum transmission to an endpoint via a quantum transmitter assigned to the endpoint over a quantum channel of the QKD link of the endpoint; route or switch data generated for quantum transmission from an endpoint via a quantum receiver assigned to the endpoint over a quantum channel of the QKD link of the endpoint; route or switch classical data for classical transmission to an endpoint via a classical transceiver assigned to the endpoint over a classical channel of the QKD link of the endpoint; and route or switch classical data received by a classical transceiver over the classical channel of the QKD link of an endpoint as required. The controller may be configured to perform any QKD protocol for exchanging keys between endpoints and switch/route data flows between the QKD linking apparatus and/or one or more endpoints via the quantum and classical channels of the QKD links according to at least the QKD protocol. Thereafter, the controller may be configured to enable secure communications between the endpoints via the classical channels of the QKD links of the endpoints. The QKD linking apparatus may be used in terrestrial, airborne, space-based and/or satellite QKD systems, combinations thereof, modifications thereto and/or as the application demands.

5. 发明申请

WO2022162372A1 SYSTEM FOR BEHAVIOUR MONITORING 审中-公开
公开(公告)号：WO2022162372A1
公开(公告)日：2022-08-04
申请号：PCT/GB2022/050219
申请日：2022-01-27
申请人： 4GD LIMITED
发明人： TAYLOR, Robert
IPC分类号： G09B9/00
摘要： A system allows virtual and real events to take place contemporaneously and to influence each other. The system is configured such that an action by a real individual in the virtual environment causes the simulation of an event in real time for another real individual in a real environment, by the simulation apparatus; and an action by a real individual in the real environment causes the simulation of an event in real time in the virtual environment for the other real individual.

6. 发明申请

WO2022153051A1 SYSTEM AND METHOD FOR KEY ESTABLISHMENT 审中-公开
公开(公告)号：WO2022153051A1
公开(公告)日：2022-07-21
申请号：PCT/GB2022/050069
申请日：2022-01-13
申请人： ARQIT LIMITED
发明人： WEBB, David , BURNS, Daryl , WILLIAMS, David
IPC分类号： H04L9/08
摘要： Methods, apparatus, and systems are provided for establishing a key between a first device and a second device using a quantum-secure network, the quantum-secure network comprising a first key node and a second key node, the first key node including a set of quantum distributed keys and the second key node including the same set of quantum distributed keys. The first device receives data representative of first key establishment data from at least the first key node and the second device for use in calculating a Bilocation Key. The Bilocation key is based on a selected quantum distributed key from the set of quantum distributed keys of the first key node and second key node. The second device receives data representative of second key establishment data from at least the first device for use in requesting the Bilocation Key from the second key node. The Bilocation Key is calculated by the second key node based on the selected quantum distributed key from the set of quantum distributed keys of the second key node. The first and second devices use their corresponding Bilocation Keys to generate the same key based on an agreed portion of the first key establishment data and second key establishment data.

7. 发明申请

WO2022122770A1 CLASSIFICATION OF MATTER FROM SPACE 审中-公开
公开(公告)号：WO2022122770A1
公开(公告)日：2022-06-16
申请号：PCT/EP2021/084669
申请日：2021-12-07
申请人： ICEYE OY [FI]/[FI]
发明人： LAURILA, Pekka
IPC分类号： G01S7/41 , G01S13/90
摘要： Multiple synthetic aperture radar "SAR" images of a target area on the earth are acquired using a satellite travelling in an orbit above the earth in a single pass of the satellite over the target area. In some methods, the data for each image is acquired from a different angle of incidence with respect to the target area. Then, the variation of quantity of backscattered radiation with respect to angle of incidence is analysed and used to identify matter imaged in a pixel or pixel group. In other methods, the data for each image is acquired from a different angle of incidence with respect to the target area, and the different angles of incidence are determined based on the specular reflection curve for a particular material. Then the quantity of backscattered radiation is analysed to determine whether the particular material is present based on the quantity of backscattered radiation. 'Extended dwell spotlight acquisition' geometry may be used in which image data acquisition apparatus may be locked to illuminate same target as the satellite passes over the target for a period of for example 20 seconds.

8. 发明申请

WO2022079107A1 EXPLANATION AND INTERPRETATION GENERATION SYSTEM 审中-公开
公开(公告)号：WO2022079107A1
公开(公告)日：2022-04-21
申请号：PCT/EP2021/078327
申请日：2021-10-13
申请人： UMNAI LIMITED
发明人： FINKEL, Olga Maximovna , GRECH, Matthew , DALLI, Angelo , PIRRONE, Mauro
IPC分类号： G06N5/04 , G16H50/20 , G06N3/04
摘要： An exemplary embodiment provides an explanation and interpretation generation system for creating explanations in different human and machine-readable formats from an explainable and/or interpretable machine learning model. An extensible explanation architecture may allow for seamless third-party integration. Explanation scaffolding may be implemented for generating domain specific explanations, while interpretation scaffolding may facilitate the generation of domain and scenario specific interpretations. An exemplary explanation filter interpretation model may provide an explanation and interpretation generation system optional filtering and interpretation filtering and briefing capabilities. An embodiment may cluster explanations into concepts to incorporate information such as taxonomies, ontologies, causal models, statistical hypotheses, data quality controls, domain specific knowledge and allow for collaborative human knowledge injection. An embodiment may include a flexible presentation layer, user model and a goal-plan-action system to enable practical and useful actionable explanations to be generated.

9. 发明申请

WO2022034200A1 GIMBAL STABILISATION SYSTEM 审中-公开
公开(公告)号：WO2022034200A1
公开(公告)日：2022-02-17
申请号：PCT/EP2021/072560
申请日：2021-08-12
申请人： QUADSAT APS
发明人： BUCHI, Andrian , ESPELAND, Joakim , GUPTA, Rasmus Kumar Udesen
IPC分类号： G05D1/00 , H04Q1/00 , H04B17/00 , F16M11/12 , F16M11/18 , F16M13/02 , G01R29/08
摘要： Methods, apparatus, and systems are provided for controlling a payload of a gimbal stabilisation system for an aircraft during testing an antenna under test (AUT). The gimbal stabilisation system including a payload control assembly coupled via a yaw motor to a gimbal assembly. The gimbal assembling including the payload comprising a first section with a transceiver for use in testing the AUT and a second section rotatably coupled to the gimbal assembly. The payload control assembly including a controller configured to operate the yaw motor and gimbal assembly by: receiving an in-flight position of the aircraft during testing of the AUT; receiving a position of the AUT in relation to the aircraft; and controlling the gimbal assembly by: calculating a pointing direction and alignment of the first section of the payload relative to the AUT based on the received position of the aircraft and the received position of the AUT; and maintaining pointing and alignment of the first section of the payload towards the AUT based on the calculated pointing direction and alignment of the first section of the payload.

10. 发明申请

WO2022023707A1 GRAPH PATTERN INFERENCE 审中-公开
公开(公告)号：WO2022023707A1
公开(公告)日：2022-02-03
申请号：PCT/GB2021/051868
申请日：2021-07-21
申请人： BENEVOLENTAI TECHNOLOGY LIMITED
发明人： HODOS, Rachel , BRIODY, Joss , APONTE, David , CORNEIL, Dane , SMITH, Daniel Paul
IPC分类号： G06N5/02 , G06N20/00 , G16B40/20
摘要： A computer-implemented method of querying a graph to assess relationships amongst graph nodes comprises determining a query node on the graph, identifying one or more target nodes on the graph in relation to the query node based on a set of connectivity patterns; generating graph- based statistics for each target node of the one or more target nodes, wherein the graph-based statistics are extracted for subgraphs associated with each target node and the query node; and assessing the graph- based statistics of each target node to determine predicted relationships between the one or more target nodes and the query node.

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