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公开(公告)号：US11621784B1
公开(公告)日：2023-04-04
申请号：US17489640
申请日：2021-09-29
Applicant: X Development LLC
Abstract: A photonic integrated circuit comprises an optical deinterleaver, including an input region, a dispersive region, and at least two output regions. The input region is adapted to receive an input optical signal including a plurality of channels. The dispersive region is optically coupled to the input region to receive the input optical signal. The dispersive region includes an inhomogeneous arrangement of a first material and a second material to structure the dispersive region to separate the input optical signal into a plurality of multi-channel optical signals, including a first multi-channel optical signal and a second multi-channel optical signal. The at least two output regions, include a first out region and a second output region optically coupled to the dispersive region. The first output region is positioned to receive the first multi-channel optical signal and the second output region is positioned to receive the second multi-channel optical signal.
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公开(公告)号：US20230100128A1
公开(公告)日：2023-03-30
申请号：US17486514
申请日：2021-09-27
Applicant: X Development LLC
Abstract: A computer-implemented method of creating a design for a physical device using an inverse design process is provided. A computing system receives a proposed design. The computing system conducts an operational simulation based on the proposed design at a first resolution to generate a calculated performance result. The computing system provides the calculated performance result to a machine learning model to generate a predicted performance result of an operational simulation based on the proposed design at a second resolution, where the second resolution is higher than the first resolution. The computing system updates the proposed design based on the predicted performance result.
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公开(公告)号：US20230099485A1
公开(公告)日：2023-03-30
申请号：US17487649
申请日：2021-09-28
Applicant: X Development LLC
IPC: G06F30/398 , H04B10/073 , G05B19/4155
Abstract: In some embodiments, techniques for creating a design for a physical device are provided. A computing system receives an initial design of the physical device. Performance of the physical device is simulated using the initial design. A performance loss value is determined for the physical device based on the simulated performance at a target wavelength and one or more delta wavelengths. The performance loss value is backpropagated to determine a gradient corresponding to an influence of changes in the initial design on the total performance loss value. The initial design of the physical device is revised based at least in part on the gradient.
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公开(公告)号：US11258527B2
公开(公告)日：2022-02-22
申请号：US17084032
申请日：2020-10-29
Applicant: X Development LLC
Inventor： Martin Schubert , Brian Adolf , Jesse Lu
IPC: H04J14/02 , H04B10/25 , G06F30/30 , G06F30/367
Abstract: A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region optically disposed between the input region and the four output regions. The dispersive region includes a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that each correspond to a change in refractive index of the dispersive region and collectively structure the dispersive region to optically separate each of the four distinct wavelength channels from the multi-channel optical signal and respectively guide each of the four distinct wavelength channels to the corresponding one of the four output regions.
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公开(公告)号：US11238190B1
公开(公告)日：2022-02-01
申请号：US16392430
申请日：2019-04-23
Applicant: X Development LLC
Inventor： Jesse Lu , Brian Adolf , Martin Schubert
IPC: G06F30/20 , G06F111/10
Abstract: A method and system for optimizing structural parameters of a physical device is described. The method includes receiving an initial description of the physical device that describes structural parameters of the physical device within a simulated environment. The method further includes performing an operational simulation of the physical device in response to an excitation source, performing an adjoint simulation by backpropagating a placeholder metric through a simulated environment to determine a loss gradient, updating the loss gradient based, at least in part, on a loss metric determined from the operational simulation. Additionally, the method further comprises computing a structural gradient corresponding to an influence of changes in the structural parameters on the loss metric and generating a revised description of the physical device by updating the structural parameters based on the structural gradient to reduce the loss metric.
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Patent Agency Ranking
公开(公告)号：US10862610B1
公开(公告)日：2020-12-08
申请号：US16679579
申请日：2019-11-11
Applicant: X Development LLC
Inventor： Martin Schubert , Brian Adolf , Jesse Lu
IPC: H04J14/02 , H04B10/25 , G06F30/30 , G06F30/367
Abstract: A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region optically disposed between the input region and the four output regions. The dispersive region includes a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that each correspond to a change in refractive index of the dispersive region and collectively structure the dispersive region to optically separate each of the four distinct wavelength channels from the multi-channel optical signal and respectively guide each of the four distinct wavelength channels to the corresponding one of the four output regions.
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公开(公告)号：US10355536B1
公开(公告)日：2019-07-16
申请号：US15364010
申请日：2016-11-29
Applicant: X Development LLC
Inventor： Michael Grundmann , Martin Schubert
Abstract: Disclosed herein is a method of determining a location of a wireless power receiver. The method involves determining a first coupling coefficient between a transmitter and a receiver coupled via a wireless resonant coupling link, where the receiver is disposed at a first location. Further, the method involves receiving, by the transmitter, kinematic data generated by a sensor coupled to the receiver. Yet further, the method involves determining, based on the kinematic data and the first coupling coefficient, the first location.
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公开(公告)号：US20190044470A1
公开(公告)日：2019-02-07
申请号：US15712973
申请日：2017-09-22
Applicant: X Development LLC
Inventor： Martin Schubert , Michael Grundmann , Cyrus Behroozi , Gregory Whiting
Abstract: The present technology provides power generation using thermoradiative cell (TRC) structures, which generate electricity by radiating heat from a hotter area/body to a cooler area/body. The TRC structures may be used in conjunction with photovoltaic (PV) cells on a common platform as a power generation system. In some scenarios, the platform may be a high altitude platform (HAP). Here, the TRC structures may be arranged or aligned to radiate heat towards space or otherwise in a direction generally away from the Earth's surface. The electricity generated by the TRC structures is provided to a power supply, for instance to recharge batteries of the power supply. The TRC structures may be intersubband TRC structures. In some configurations, the TRC structures are co-located on the same side of a panel as the PV cells. In other configurations, the TRC structures are remote from the PV cells.
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公开(公告)号：US11962351B2
公开(公告)日：2024-04-16
申请号：US17540088
申请日：2021-12-01
Applicant: X Development LLC
CPC classification number: H04B10/60 , G02B6/12002 , G02B6/12004 , G02B6/12007 , G02B6/26
Abstract: A multilayer photonic device is described, including an input region configured to receive an input signal, a multilayer stack optically coupled with the input region to receive the input signal, and an output region optically coupled with the multilayer stack to output an output signal. The multilayer stack can include a first metastructured dispersive region disposed in a first patterned layer of the multilayer stack and a second metastructured dispersive region disposed in a second patterned layer of the multilayer stack and optically coupled with the first metastructured dispersive region. The first metastructured dispersive region and the second metastructured dispersive region can together structure the multilayer stack to generate the output signal in response to the input signal.
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10.发明授权公开(公告)号：US11636241B2
公开(公告)日：2023-04-25
申请号：US17387082
申请日：2021-07-28
Applicant: X Development LLC
Inventor： Brian Adolf , Martin Schubert , Jesse Lu
Abstract: A system, apparatus, and method for optimizing structural parameters of a physical device are described. The method includes receiving an initial description of the physical device describing the structural parameters within a simulated environment. The method further includes performing a simulation of the physical device in response to an excitation source to determine a performance metric of the physical device. The simulation environment includes one or more absorbing boundaries for attenuation of an output of the excitation source during the simulation. The method further includes recording attenuated field values of the simulated environment associated with the attenuation during the simulation. The method further includes determining a loss metric based on a difference between the performance metric and a target performance metric, backpropagating the loss metric using the attenuated field values, and generating a revised description of the physical device by updating the structural parameters to reduce the loss metric.
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