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1.发明授权公开(公告)号：US11735817B2
公开(公告)日：2023-08-22
申请号：US17933167
申请日：2022-09-19
Applicant: Elwha, LLC
Inventor： Guy S. Lipworth
IPC: H01Q3/24
CPC classification number: H01Q3/24
Abstract: Systems and methods described herein include a two-dimensional antenna array of antenna pixels having length and width dimensions of less than one-half of an operational wavelength. In various examples, each antenna pixel comprises a fixed number of phase-adjustable antenna elements. The antenna elements of each antenna pixel may be coupled to the waveguide with interelement spacings selected to associate each antenna element with a distinct phase advance value. A controller identifies a target phase value for each antenna pixel that corresponds to a target beamform for the two-dimensional antenna. A controller activates and adjusts a phase response of one of the antenna elements in each antenna pixel, such that the phase advance value associate with the activated antenna element and the adjusted phase response combine to attain the target phase value for the antenna pixel as a whole.
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公开(公告)号：US11732377B2
公开(公告)日：2023-08-22
申请号：US17479567
申请日：2021-09-20
Applicant: Elwha LLC
Inventor： Rachel Cannara , Emma Rae Mullen , Fred Sharifi
Abstract: The present disclosure relates to methods of fabricating a porous structure, such as a porous silicon carbide structure. The methods can include a step of providing a structure to be rendered porous, and a step of providing an etching solution. The methods can also include a step of electrochemically etching the structure to produce pores through at least a region of the structure, resulting in the formation of a porous structure. The morphology of the porous structure can be controlled by one or more parameters of the electrochemical etching process, such as the strength of the etching solution and/or the applied voltage.
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3.发明授权公开(公告)号：US11450954B2
公开(公告)日：2022-09-20
申请号：US16837998
申请日：2020-04-01
Applicant: Elwha, LLC
Inventor： Guy S. Lipworth
Abstract: Systems and methods described herein include a two-dimensional antenna array of antenna pixels having length and width dimensions of less than one-half of an operational wavelength. In various examples, each antenna pixel comprises a fixed number of phase-adjustable antenna elements. The antenna elements of each antenna pixel may be coupled to the waveguide with interelement spacings selected to associate each antenna element with a distinct phase advance value. A controller identifies a target phase value for each antenna pixel that corresponds to a target beamform for the two-dimensional antenna. A controller activates and adjusts a phase response of one of the antenna elements in each antenna pixel, such that the phase advance value associate with the activated antenna element and the adjusted phase response combine to attain the target phase value for the antenna pixel as a whole.
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公开(公告)号：US20220178043A1
公开(公告)日：2022-06-09
申请号：US17479567
申请日：2021-09-20
Applicant: Elwha LLC
Inventor： Rachel Cannara , Emma Rae Mullen , Fred Sharifi
Abstract: The present disclosure relates to methods of fabricating a porous structure, such as a porous silicon carbide structure. The methods can include a step of providing a structure to be rendered porous, and a step of providing an etching solution. The methods can also include a step of electrochemically etching the structure to produce pores through at least a region of the structure, resulting in the formation of a porous structure. The morphology of the porous structure can be controlled by one or more parameters of the electrochemical etching process, such as the strength of the etching solution and/or the applied voltage.
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公开(公告)号：US11124889B2
公开(公告)日：2021-09-21
申请号：US16434049
申请日：2019-06-06
Applicant: Elwha LLC
Inventor： Rachel Cannara , Emma Rae Mullen , Fred Sharifi
Abstract: The present disclosure relates to methods of fabricating a porous structure, such as a porous silicon carbide structure. The methods can include a step of providing a structure to be rendered porous, and a step of providing an etching solution. The methods can also include a step of electrochemically etching the structure to produce pores through at least a region of the structure, resulting in the formation of a porous structure. The morphology of the porous structure can be controlled by one or more parameters of the electrochemical etching process, such as the strength of the etching solution and/or the applied voltage.
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Patent Agency Ranking
公开(公告)号：US11054660B2
公开(公告)日：2021-07-06
申请号：US16173895
申请日：2018-10-29
Applicant: Elwha, LLC
Inventor： Yaroslav A. Urzhumov
Abstract: A multi-layer optical device may include one, two, or three layers. A first layer may include an array of Fourier-transforming optically transmissive elements to map optical radiation between each of a plurality of angles of incidence and corresponding coordinate locations proximate each respective optically transmissive element. A second layer may provide a modulation matrix of optically modulating sub-elements optically coupled to the array of transmissive elements, where each optically modulating sub-element corresponds to one of the coordinate locations of the first layer mapping. A third layer includes an array of inverse Fourier-transforming optically transmissive elements to inverse-map optical radiation from the optically modulating sub-elements of the modulation matrix for propagation at angles corresponding to the angles of incidence from which the optical radiation was received.
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公开(公告)号：US20210126668A1
公开(公告)日：2021-04-29
申请号：US17093469
申请日：2020-11-09
Applicant: Elwha LLC
Inventor： Yaroslav Urzhumov
IPC: H04B1/40
Abstract: In one embodiment, a signal transduction system includes an arrangement of interacting unit cells. Each unit cell can have one or more adjustable parameters that are adjustable to enable one or more adjustable impedance values of the unit cells at each of one or more operational frequencies. The interactions of the unit cells within the arrangement of the interacting unit cells can be describable with an interaction matrix that is approximately independent of the adjustable impedance values of the unit cells.
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公开(公告)号：US10825441B2
公开(公告)日：2020-11-03
申请号：US15683517
申请日：2017-08-22
Applicant: Elwha LLC
Inventor： Jeffrey A. Bowers , Paul Duesterhoft , Daniel Hawkins , Roderick A. Hyde , Edward K. Y. Jung , Jordin T. Kare , Eric C. Leuthardt , Nathan P. Myhrvold , Clarence T. Tegreene , Lowell L. Wood, Jr. , Michael A. Smith
Abstract: The present disclosure provides systems and methods associated with acoustic transmitters, receivers, and antennas. Specifically, the present disclosure provides a transducer system for transmitting and receiving acoustic energy according to a determined acoustic emission/reception pattern. In various embodiments, an acoustic transducer system may include an array of sub-wavelength transducer elements each configured with an electromagnetic resonance at one of a plurality of electromagnetic frequencies. Each sub-wavelength transducer element may generate an acoustic emission in response to the electromagnetic resonance. A beam-forming controller may cause electromagnetic energy to be transmitted at select electromagnetic frequencies to cause a select subset of the sub-wavelength transducer elements to generate acoustic emissions according to a selectable acoustic transmission pattern. A common port may facilitate electromagnetic communication with each of the sub-wavelength transducer elements.
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公开(公告)号：US20200339415A1
公开(公告)日：2020-10-29
申请号：US16872253
申请日：2020-05-11
Applicant: Elwha LLC
Inventor： Daniel Arnitz , Patrick Bowen , Seyedmohammadreza Faghih Imani , Joseph Hagerty , Roderick A. Hyde , Edward K.Y. Jung , Guy Shlomo Lipworth , Nathan P. Myhrvold , David R. Smith , Clarence T. Tegreene , Yaroslav A. Urzhumov , Lowell L. Wood, JR.
IPC: B81B7/04
Abstract: An apparatus includes a base having a first surface and an array of pillars. Each pillar of the array of pillars includes (i) a first end attached to the first surface of the base; (ii) a second end having an electric charge retention portion; (iii) a physical separation from adjacent pillars of the array of pillars; and (iv) an electrical conductor configured to electrically connect the electric charge retention portion with a bus structure. The bus structure is configured to addressably connect with the electrical conductor of each respective pillar of the array of pillars.
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公开(公告)号：US10783989B2
公开(公告)日：2020-09-22
申请号：US15409801
申请日：2017-01-19
Applicant: Elwha LLC
Inventor： Mahalaxmi Gita Bangera , Michael H. Baym , Philip A. Welkhoff , Roderick A. Hyde , Muriel Y. Ishikawa , Elizabeth A. Sweeney , Lowell L. Wood, Jr.
Abstract: Embodiments disclosed herein relate to methods, devices, and computer systems thereof for automated data collection from a subject. In certain embodiments, one or more characteristics of a subject are sensed, and the subject is given a queue status indicator based on a comparison of the subject's one or more sensed characteristics with corresponding sensed characteristics from other subjects. In one embodiment, the subject is a healthcare worker and the system, methods, and devices are utilized to evaluate the overall health of the worker as part of the check-in process for work.
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