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公开(公告)号：US11835715B1
公开(公告)日：2023-12-05
申请号：US16720957
申请日：2019-12-19
Applicant: X Development LLC
Inventor： Jesse Lu , Brian John Adolf , Martin Friedrich Schubert
IPC: G02B27/00 , G06F30/23 , G06F111/10
CPC classification number: G02B27/0012 , G06F30/23 , G06F2111/10
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for designing a multimodal photonic component. In one aspect, a method includes defining a loss function within a simulation space including multiple voxels and encompassing features of the multimodal photonic component. The loss function corresponds to a target output mode profile for an input mode profile, where the target output mode profile includes a relationship between a set of operating conditions and one or more supported modes of the multimodal photonic component at a particular operative wavelength. The initial structure is defined for one or more features, where at least some of the voxels corresponding to features have a dimension smaller than a smallest operative wavelength of the multimodal photonic component, and values for structural parameters for the features are determined so that a loss according to the loss function is within a threshold loss.
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公开(公告)号：US11828934B1
公开(公告)日：2023-11-28
申请号：US16508175
申请日：2019-07-10
Applicant: X Development LLC
Inventor： Jesse Lu , Brian John Adolf , Martin Friedrich Schubert
IPC: G02B27/00 , G06F30/00 , G06F111/10
CPC classification number: G02B27/0012 , G06F30/00 , G06F2111/10
Abstract: A computer-implemented method for designing a dispersive optical component includes: (i) defining a loss function within a simulation space composed of multiple voxels, the simulation space encompassing optical interfaces of the component, the loss function corresponding to a target dispersion profile for the component including a relationship between a scattering angle and a wavelength of an incident electromagnetic field for different operative wavelengths; (ii) defining an initial structure for the optical interfaces, at least some of the voxels corresponding to each optical interface having a dimension smaller than a smallest operative wavelength of the component; and (iii) determining, using a computer system, a structure for each optical interface using a finite-difference time domain solver to solve Maxwell's equations so that a loss determined according to the loss function is above a specified threshold.
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公开(公告)号：US11804691B2
公开(公告)日：2023-10-31
申请号：US17321337
申请日：2021-05-14
Applicant: X Development LLC
Inventor： Martin Friedrich Schubert , Brian John Adolf , Jesse Lu
CPC classification number: H01S5/0035 , H01S5/0285 , H01S5/0287 , H01S5/065 , H01S5/0651 , H01S5/1003 , H01S5/1028 , H01S5/20 , H01S5/2027 , H01S5/2031 , H01S5/22 , H01S5/32 , H01S5/34 , H01S2301/16
Abstract: Methods for designing a mode-selective optical device including one or more optical interfaces defining an optical cavity include: defining a loss function within a simulation space encompassing the optical device, the loss function corresponding to an electromagnetic field having an operative wavelength within the optical device resulting from an interaction between an input electromagnetic field at the operative wavelength and the one or more optical interfaces of the optical device; defining an initial structure for each of the one or more optical interfaces, each initial structure being defined using a plurality of voxels; determining values for at least one structural parameter and/or at least one functional parameter of the one or more optical interfaces by solving Maxwell's equations; and defining a final structure of the one or more optical interfaces based on the values for the one or more structural and/or functional parameters.
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公开(公告)号：US10952680B2
公开(公告)日：2021-03-23
申请号：US15855870
申请日：2017-12-27
Applicant: X Development LLC
Inventor： Sarah Ann Laszlo , Brian John Adolf , Gabriella Levine , Joseph R. Owens , Patricia Prewitt , Philip Edwin Watson
IPC: A61B5/378 , A61B5/00 , G06N20/00 , G06F3/01 , G06F3/0484 , A61B5/291 , A61B5/369 , A61B5/375 , G06K7/14 , G06N3/02 , G06K7/10
Abstract: A bioamplifier for analyzing electroencephalogram (EEG) signals is disclosed. The bioamplifier includes an input terminal for receiving an EEG signal from a plurality of sensors coupled to a user. The bioamplifier also includes an analogue-to-digital converter arranged to receive the EEG signal from the input terminal and convert the EEG signal to a digital EEG signal. A data processing apparatus within the bioamplifier is arranged to receive the digital EEG signal from the analogue-to-digital converter and programmed to process, in real time the digital EEG signal using a first machine learning model to generate a cleaned EEG signal having a higher signal-to-noise ratio than the digital EEG signal. The bioamplifier further includes a power source to provide electrical power to the analogue-to-digital converter and the data processing apparatus. The bioamplifier includes a housing that contains the analogue-to-digital converter, the data processing apparatus, the power source, and the sensor input.
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公开(公告)号：US10739450B2
公开(公告)日：2020-08-11
申请号：US15837396
申请日：2017-12-11
Applicant: X DEVELOPMENT LLC
Inventor： Brian John Adolf
IPC: G01S13/02 , H02J50/12 , H01P5/08 , G01R21/133 , G05B15/02 , G01S13/46 , H01Q1/36 , G01S11/02 , H01Q21/06 , H01Q1/12
Abstract: Systems and methods for detecting and locating power loads within a spherical waveguide bounded by the Earth's surface are disclosed. One or more eigenmodes of the Earth-ionosphere waveguide may be computed based on a mathematical model incorporating electrical properties of the terrestrial surface and plasma physics of the ionospheric layer. A phased array of wave guide couplers, each including an array of electrically-connected waveguide-coupling elements, may be configured at different geographic locations for coupling to the one or more eigenmodes and generating standing waves in the Earth-ionosphere waveguide. Power loads may be detected by way of power reflections, and by adjusting relative phases and/or amplitudes of the waveguide couplers, as well as frequencies, power nodes and nulls of the standing waves may be steered with respect to specified locations. Using reflections and steering, locations of power loads may be triangulated.
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Patent Agency Ranking
公开(公告)号：US20190181530A1
公开(公告)日：2019-06-13
申请号：US15837380
申请日：2017-12-11
Applicant: X DEVELOPMENT LLC
Inventor： Brian John Adolf
Abstract: Systems and methods for efficient coupling to low-loss eigenmodes of a spherical waveguide bounded by the Earth's surface and its ionosphere from multiple locations within the waveguide are disclosed. One or more eigenmodes of the Earth-ionosphere waveguide may be computed based on a mathematical model incorporating electrical properties of the terrestrial surface and plasma physics of the ionospheric layer. Multiple wave guide couplers, each including an array of electrically-connected waveguide-coupling elements, may be configured at different geographic locations for coupling to the one or more eigenmodes. By adjusting relative phases and/or amplitudes of the waveguide couplers, as well as frequencies, power may be coupled into standing waves of the Earth-ionosphere waveguide. The adjustments may also account or compensate for diurnal variations of ionosphere by steering power nodes and nulls of the standing waves away from regions of potential ohmic losses.
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公开(公告)号：US20190179000A1
公开(公告)日：2019-06-13
申请号：US15837396
申请日：2017-12-11
Applicant: X DEVELOPMENT LLC
Inventor： Brian John Adolf
Abstract: Systems and methods for detecting and locating power loads within a spherical waveguide bounded by the Earth's surface are disclosed. One or more eigenmodes of the Earth-ionosphere waveguide may be computed based on a mathematical model incorporating electrical properties of the terrestrial surface and plasma physics of the ionospheric layer. A phased array of wave guide couplers, each including an array of electrically-connected waveguide-coupling elements, may be configured at different geographic locations for coupling to the one or more eigenmodes and generating standing waves in the Earth-ionosphere waveguide. Power loads may be detected by way of power reflections, and by adjusting relative phases and/or amplitudes of the waveguide couplers, as well as frequencies, power nodes and nulls of the standing waves may be steered with respect to specified locations. Using reflections and steering, locations of power loads may be triangulated.
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公开(公告)号：US20170141584A1
公开(公告)日：2017-05-18
申请号：US14941017
申请日：2015-11-13
Applicant: X Development LLC
Inventor： Richard Wayne DeVaul , Brian John Adolf
CPC classification number: H02J5/005 , H02J50/05 , H02J50/12 , H02J50/40 , H02J50/80 , H04B5/0012 , H04B5/0037 , H04B5/0075 , H04W76/14
Abstract: A transmitter includes a first resonator to generate an oscillating field at a resonant frequency in response to receiving power from a power source. The transmitter includes a first communication interface and a first controller to control the first resonator and to communicate data via the first communication interface. One of a plurality of receivers includes a second resonator to be wirelessly coupled to the first resonator. The second resonator resonates at the common mode resonant frequency in response to the oscillating field. The one receiver includes a second communication interface to establish wireless side-channel communications with the first communication interface and to communicate the data with the first communication interface via the wireless side-channel communications. The first controller identifies the one receiver from the plurality of receivers according to the communicated data, and in response, the first resonator transfers the power to the second resonator.
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公开(公告)号：US11455443B1
公开(公告)日：2022-09-27
申请号：US16555419
申请日：2019-08-29
Applicant: X Development LLC
Inventor： Martin Friedrich Schubert , Brian John Adolf , Jesse Lu
Abstract: A computer-implemented method for designing an image processing device includes defining a loss function within a simulation space composed of a plurality of voxels; defining an initial structure for one or more physical features of a metasurface and one or more architectural features of a neural network in the simulation space; determining, using a computer system, values for at least one structural parameter, and/or at least one functional parameter for the one or more physical features and at least one architectural parameter for the one or more architectural features, using a numerical solver to solve Maxwell's equations so that a loss determined according to the loss function is within a threshold loss; defining a final structure of the metasurface based on the values for the one or more structural parameters; and defining a final structure of the neural network based on the values for the at least one architectural parameter.
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公开(公告)号：US11413820B2
公开(公告)日：2022-08-16
申请号：US16356357
申请日：2019-03-18
Applicant: X Development LLC
Inventor： Matthew Dixon Eisaman , Dominico P. Julian , Benoit Schillings , Brian John Adolf
IPC: B29C64/264 , G03H1/02 , B29C64/10 , G03H3/00 , B29C64/393
Abstract: An apparatus includes a precursor dispenser for dispensing a precursor material into a workspace, one or more acoustic sources configured to direct acoustic waves towards the workspace to provide acoustic fields that arrange the precursor material in a three-dimensional shape in the workspace, one or more sensors configured to detect a distribution of the precursor material in the workspace, and an electronic controller in communication with the precursor dispenser, the one or more acoustic sources, and the one or more sensors, the electronic controller being programmed to cause the one or more acoustic sources to adjust the acoustic fields to reduce deviations in the distribution of the precursor material from the three-dimensional shape in the workspace.
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