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1. 发明授权

US12101693B2 Localization by using skyline data 有权
公开(公告)号：US12101693B2
公开(公告)日：2024-09-24
申请号：US18202086
申请日：2023-05-25
申请人： U.S. Gov't as Represented by Sec of Army c/o U.S Army DEVCOM Army Research Laboratory , U.S. Gov, as represented by the Sec of Army c/o U.S. Army DEVCOM Army Research Laboratory
发明人： Christoph C. Borel-Donohue
IPC分类号： H04W4/029 , G01C21/36 , G06T7/73 , G06T15/60 , G06V20/00
CPC分类号： H04W4/029 , G01C21/3602 , G06T7/75 , G06T15/60 , G06V20/39 , G06T2207/30244 , G06T2215/12
摘要： Methods, systems, and computer code on computer-readable media are provided that are directed to generating area skyline data using a digital elevation or surface models (DEMs or DESs) and shadow casting techniques. Some embodiments use an area of maximum shadow line overlap, for shadow line images based on target location skyline azimuth and elevation angle data, as the best approximation for the position of the target location in an area. Some embodiments select the location showing the best fit to the target skyline azimuth and elevation angle data as the best approximation for the target location.

2. 发明公开

US20240093387A1 PUMP FREE ALKALINE ELECTROLYTE MEMBRANE WATER ELECTROLYTIC DEVICE 审中-公开
公开(公告)号：US20240093387A1
公开(公告)日：2024-03-21
申请号：US17947797
申请日：2022-09-19
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Rongzhong Jiang , Jiangtian Li , Deryn D. Chu , David R. Baker
IPC分类号： C25B9/21 , C25B1/04 , C25B11/063 , C25B11/093 , C25B13/02 , C25B13/05
CPC分类号： C25B9/21 , C25B1/04 , C25B11/063 , C25B11/093 , C25B13/02 , C25B13/05
摘要： An alkaline electrolyte membrane (AEM) electrolytic device is designed, assembled and evaluated for water electrolysis, composed of an anode for oxygen generation, a cathode for hydrogen generation, an AEM for anion conductive, and two internal water gas separators (IWGSs) for water supplying to the anode and the cathode, respectively, as well as for automatically separation of water and gas produced from the anode or from the cathode. There is no need of pumps for water and gas circulations and no external water gas separators (EWGSs) that are used by conventional water electrolyzers. The corrosive electrolyte is confined in the water containers and will not damage other parts in the electrolytic device. Furthermore, novel multi gas diffusion layers are used to replace the conventional single gas diffusion layer. The pore size is configurable to improve the mass transfer of electrochemical reactions and promote electrochemical reactions.

3. 发明公开

US20230412185A1 CONTINUOUS TIME SIGNAL PROCESSING SYSTEMS AND SUBSYSTEMS 审中-公开
公开(公告)号：US20230412185A1
公开(公告)日：2023-12-21
申请号：US18129114
申请日：2023-03-31
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Patrick W. Jungwirth , W. Michael Crowe
IPC分类号： H03M1/12
CPC分类号： H03M1/125 , H03M1/122
摘要： Continuous time pipeline, level-crossing (LC), analog-to-digital converters (ADCs) use a plurality of stages from a first stage to a last stage. Each stage has an array of comparators that are provided with an array of reference voltage levels. Each stage is configured to detect level crossings of increasing fineness compared to the preceding stage such that the accuracy of a digitized representation of an input signal can be increased by adding stages as well as increasing the number of comparators in each stage. The voltage error in the digitized representation of the signal that remains after each stage provides the input to the subsequent stage. The continuous time pipeline LC ADCs are also applied to analog signal processing and software defined radios.

4. 发明授权

US11762149B1 Fiber optic collimator with a beveled fiber endcap 有权
公开(公告)号：US11762149B1
公开(公告)日：2023-09-19
申请号：US17712207
申请日：2022-04-04
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Leonid A. Beresnev , David A. Ligon , Angel S. Flores , Mark Dubinskiy , Kristan P. Gurton , Chatt C. Williamson
IPC分类号： G02B6/26 , G02B6/34
CPC分类号： G02B6/262 , G02B6/34
摘要： A method and apparatus for controlling propagation of a light beam using a beveled endcap of an optical fiber, where the endcap has a first end coupled to the optical fiber and a second end having a bevel that circumscribes a facet. The bevel has an angle relative to the plane of the facet that directs a peripheral portion of the light beam towards a lens and the facet directs a central portion of the light beam towards the lens. As such, the light beam is collimated with substantially all of the power of the light beam propagating through the lens and all the power delivered with fiber core to the output endcap is propagating through the lens despite the divergence of the delivered beam and a restricted aperture of the lens.

5. 发明公开

US20230261762A1 METHOD AND APPARATUS FOR MAPPING OUT SOURCES OF DECOHERENCE IN QUANTUM CHANNELS 审中-公开
公开(公告)号：US20230261762A1
公开(公告)日：2023-08-17
申请号：US18100857
申请日：2023-01-24
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Michael Brodsky , Cristian Antonelli , Daniel E. Jones , Gabriele Riccardi
IPC分类号： H04B10/70 , H04B10/079
CPC分类号： H04B10/70 , H04B10/079
摘要： Systems, apparatus and methods for defining an impairment profile along a polarization quantum channel such as in terms of modal loss and decoherence. The disclosed impairment profile or characterization methods may be used as part of a tool such as to inform a network operator of a weakest span of the communication channel, thus facilitating optimal signal routing decisions.

6. 发明公开

US20230155179A1 ALCOHOL-BASED ELECTROLYTES FOR HIGHLY REVERSIBLE ZN METAL BATTERIES 审中-公开
公开(公告)号：US20230155179A1
公开(公告)日：2023-05-18
申请号：US17528719
申请日：2021-11-17
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Lin Ma , Marshall A. Schroeder , Oleg A. Borodin , Travis P. Pollard , Michael S. Ding , Kang Xu
IPC分类号： H01M10/0569 , H01M10/0567 , H01M50/417 , H01M50/437 , H01M4/46 , H01M4/42
CPC分类号： H01M10/0569 , H01M10/0567 , H01M50/417 , H01M50/437 , H01M4/463 , H01M4/466 , H01M4/42 , H01M2300/0042
摘要： An electrochemical cell includes a negative electrode including a metal, metal alloy, or an electrode active material that reversibly intercalates and de-intercalates cations; a positive electrode including (i) an electrode active material that reversibly intercalates and de-intercalates cations or anions, or (ii) an inert host that reversibly catalyzes an external reactant; a separator between the negative electrode and the positive electrode; and an electrolyte including one or more alcohol-based solvents, with one or more salts. The solvents may include methanol, ethanol, isopropanol, triglycerol, 2,2,2-trifluoroethanol, an organic small molecule or macromolecule that contain at least one hydroxyl (OH) group, or a combination thereof. The electrochemical cell may include a mixture of multiple alcohol-based solvents or a mixture of the one or more alcohol-based solvents with water, mixed at select ratios. The electrochemical cell may include one or more additives having a concentration range between 0.01% to 20% by weight.

7. 发明申请

US20230132533A1 ELECTROLESS PLATING OF CONDUCTIVE COMPOSITES 有权
公开(公告)号：US20230132533A1
公开(公告)日：2023-05-04
申请号：US17517336
申请日：2021-11-02
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Nathan S. Lazarus , Jorge A. Cardenas , Harvey Hing-Cheong Tsang
IPC分类号： C23C18/16 , C23C18/20 , C23C18/24 , C23C18/31
摘要： A method and apparatus for electroless plating of a conductive composite created using fused filament fabrication. The method comprises fused filament fabricating a three-dimensional object with conductive filament and non-conductive filament. The object is then plated with electroless plating, with the metal in the conductive filament forming nucleation sites.

8. 发明申请

US20230002857A1 ALUMINUM BASED NANOGALVANIC COMPOSITIONS USrEFUL FOR GENERATING HYDROGEN GAS AND LOW TEMPERATURE PROCESSING THEREOF 有权
公开(公告)号：US20230002857A1
公开(公告)日：2023-01-05
申请号：US17939473
申请日：2022-09-07
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Billy C. Hornbuckle , Anthony J. Roberts , Thomas L. Luckenbaugh , Anit K. Giri , Kristopher A. Darling
IPC分类号： C22C1/04 , B22F9/04 , C01B3/08
摘要： Alloys comprised of a refined microstructure, ultrafine or nano scaled, that when reacted with water or any liquid containing water will spontaneously and rapidly produce hydrogen at ambient or elevated temperature are described. These metals, termed here as aluminum based nanogalvanic alloys will have applications that include but are not limited to energy generation on demand. The alloys may be composed of primarily aluminum and other metals e.g., tin bismuth, indium, gallium, lead, etc. and/or carbon, and mixtures and alloys thereof. The alloys may be processed by ball milling for the purpose of synthesizing powder feed stocks, in which each powder particle will have the above-mentioned characteristics. These powders can be used in their inherent form or consolidated using commercially available techniques for the purpose of manufacturing useful functional components.

9. 发明申请

US20220368028A1 BROADBAND STACKED PATCH ANTENNA ARRAY 有权
公开(公告)号：US20220368028A1
公开(公告)日：2022-11-17
申请号：US17322317
申请日：2021-05-17
申请人： U.S. Army DEVCOM Army Research Laboratory
发明人： Mark A. Govoni , Seth A. McCormick
IPC分类号： H01Q21/06 , H01Q9/04 , H01Q1/38 , H01Q1/42
摘要： A stacked patch antenna array includes: a conductive ground plane configured to connect to a plurality of electrical transmission lines for transmitting and/or receiving electrical signals; a driven layer adjacent to the conductive ground plane formed of a dielectric material and comprising a plurality of first resonant circular patches, each electrically connecting to a respective electrical transmission line such that a received electrical signal excites and generates an electromagnetic signal and/or a received electromagnetic signal excites and generates an electrical signal; an electrically insulating spacer adjacent to the driven layer; and a coupled layer adjacent to the electrically insulating spacer formed of a dielectric material and comprising a plurality of second resonant circular patches which are symmetrically positioned with respect to the first circular resonant patches of the driven layer and excited by the electromagnetic waves generated by the first resonant circular patches, wherein the electrically insulating spacer electrically separates the driven layer and the coupled layer having a thickness such that the resonances of the first and second resonant circular patches constructively combine.

10. 发明公开

US20240387882A1 Acidic Surface Treatment for Multivalent Battery Metal Anode 审中-公开
公开(公告)号：US20240387882A1
公开(公告)日：2024-11-21
申请号：US18670244
申请日：2024-05-21
申请人： U.S. Army DEVCOM, Army Research Laboratory
发明人： Lin Ma , Marshall A. Schroeder , Oleg A. Borodin , Travis P. Pollard , Kang Xu
IPC分类号： H01M10/38 , H01M4/36 , H01M4/485 , H01M10/36
CPC分类号： H01M10/38 , H01M4/366 , H01M4/485 , H01M10/365
摘要： To improve the performance of certain multivalent metal electrodes, the electrodes can be treated prior to use in an electrochemical cell by applying a solution comprising an acid to a surface of a multivalent metal electrode, then removing excess solution comprising the acid and drying the surface of the multivalent metal electrode. The resulting electrode has an outer interphase layer comprised of a hydrated hydroxychloride comprising the multivalent metal, where the interphase layer has a thickness of less than 5 μm.

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