公开(公告)号：US11501053B2

公开(公告)日：2022-11-15

申请号：US16994389

申请日：2020-08-14

Applicant: X Development LLC

Inventor： Brian Adolf ,  Patricia Prewitt

IPC: G06F30/398 ,  G06F30/392 ,  H04J14/02

Abstract: In some embodiments, logic stored on a computer-readable medium, in response to execution, causes a computing system to conduct an inverse design process to generate a plurality of segmented designs corresponding to a plurality of device specifications, determine at least one highly impactful design area based on the plurality of segmented designs; and designate the at least one highly impactful design area as a static design area. In some embodiments, a product line comprising a plurality of physical devices is provided. Each physical device of the plurality of physical devices includes a design region that includes a static design area and a customized design area. The static design area for each physical device is the same for each physical device of the plurality of physical devices, and the customized design area for each physical device is different for each physical device of the plurality of physical devices.

公开(公告)号：US11476964B2

公开(公告)日：2022-10-18

申请号：US17529112

申请日：2021-11-17

Applicant: X Development LLC

Inventor： Jesse Lu ,  Brian Adolf ,  Martin Schubert

IPC: H04B10/07 ,  H04J14/02 ,  H04B10/073 ,  G06N3/08 ,  G05B19/4097 ,  G06F30/20 ,  H04J14/00 ,  H04B10/079

Abstract: Embodiments of techniques for inverse design of physical devices are described herein, in the context of generating designs for photonic integrated circuits (including a multi-channel photonic demultiplexer). In some embodiments, an initial design of the physical device is received, and a plurality of sets of operating conditions for fabrication of the physical device are determined. In some embodiments, the performance of the physical device as fabricated under the sets of operating conditions is simulated, and a total performance loss value is backpropagated to determine a gradient to be used to update the initial design. In some embodiments, instead of simulating fabrication of the physical device under the sets of operating conditions, a robustness loss is determined and combined with the performance loss to determine the gradient.

公开(公告)号：US11379633B2

公开(公告)日：2022-07-05

申请号：US16432538

申请日：2019-06-05

Applicant: X Development LLC

Inventor： Brian Adolf ,  Martin Schubert ,  Jesse Lu

IPC: G06F30/20 ,  G05B19/4097

Abstract: A technique for simulating and optimizing the fabrication and design of a physical device is described. The technique includes executing a fabrication simulation of the physical device with a fabrication model that receives a fabrication specification as input and outputs a structural design for the physical device in response to the fabrication simulation. An operational simulation of the physical device is executed with a design model that simulates a field response propagating through a simulated environment of the physical device. The structural design output from the fabrication model is forward cascaded to the design model and an output from backpropagation of a performance loss error through the design model is reverse cascaded to the fabrication model.

公开(公告)号：US20220188497A1

公开(公告)日：2022-06-16

申请号：US17122984

申请日：2020-12-15

Applicant: X Development LLC

Inventor： Jaspreet Singh Jhoja ,  Brian Adolf

IPC: G06F30/39

Abstract: In some embodiments, techniques for creating fabricable segmented designs for physical devices are provided. A proposed segmented design is determined based on a design specification. The proposed segmented design includes a plurality of segments that each includes an indication of a material for the segment. The proposed segmented design also includes lattice members and lattice voids. A size of the lattice members and a size of the lattice voids are greater than a size of the segments and are greater than or equal to at least one of a minimum feature width and a minimum feature spacing of a fabrication system Performance of the proposed segmented design is simulated. One or more lattice members and lattice voids are chosen to change to improve the performance of the proposed segmented design.

公开(公告)号：US11295212B1

公开(公告)日：2022-04-05

申请号：US16392437

申请日：2019-04-23

Applicant: X Development LLC

Inventor： Brian Adolf

IPC: G06N20/00 ,  G06N3/08 ,  G06N3/04 ,  G06N3/00 ,  G06N3/10

Abstract: A system for physically simulating a neural network is described herein. The system includes a plurality of physical voxels configurable to represent nodes of the neural network operating in response to electromagnetic radiation. Each of the physical voxels includes an impedance adjuster, a field detector, and a signal adjuster. The impedance adjuster adjusts impedance to the electromagnetic radiation within a corresponding one of the physical voxels. Weights between nodes of the neural network are based on the adjusted impedance. The field detector measures local field response within the corresponding one of the physical voxels. The local field response is representative of the electromagnetic radiation with the adjusted impedance. The signal adjuster is coupled to receive the local field response and apply an adjustment to the received local field response. The adjustment corresponds to an activation function of the neural network at the corresponding one of the physical voxels.

公开(公告)号：US20220026635A1

公开(公告)日：2022-01-27

申请号：US17490622

申请日：2021-09-30

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: G02B6/12 ,  G06F30/23

Abstract: A two-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal, two output regions, each adapted to receive a corresponding one of two distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region including a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that collectively structure the dispersive region to optically separate each of the two distinct wavelength channels from the multi-channel optical signal and respectively guide the first distinct wavelength channel to a first output region and the second distinct wavelength channel to the second output region when the input region receives the multi-channel optical signal. At least one of the first material or the second material is structured within the dispersive region to be schematically reproducible by a feature shape with a pre-determined width.

公开(公告)号：US20210357554A1

公开(公告)日：2021-11-18

申请号：US17387082

申请日：2021-07-28

Applicant: X Development LLC

Inventor： Brian Adolf ,  Martin Schubert ,  Jesse Lu

IPC: G06F30/20 ,  G06F30/17

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.

公开(公告)号：US20210149109A1

公开(公告)日：2021-05-20

申请号：US16685473

申请日：2019-11-15

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: G02B6/12 ,  G06F17/50

Abstract: A two-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal, two output regions, each adapted to receive a corresponding one of two distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region including a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that collectively structure the dispersive region to optically separate each of the two distinct wavelength channels from the multi-channel optical signal and respectively guide the first distinct wavelength channel to a first output region and the second distinct wavelength channel to the second output region when the input region receives the multi-channel optical signal. At least one of the first material or the second material is structured within the dispersive region to be schematically reproducible by a feature shape with a pre-determined width.

公开(公告)号：US20200226221A1

公开(公告)日：2020-07-16

申请号：US16244846

申请日：2019-01-10

Applicant: X Development LLC

Inventor： Jesse Lu ,  Martin Schubert ,  Brian Adolf

IPC: G06F17/50

Abstract: A method and system for optimizing structural parameters of an electromagnetic device is described that includes performing operations. The operations include performing a time-forward simulation of a field response in a simulated environment describing the electromagnetic device and extracting decomposition components from the field response to compute a loss value. The operations further include backpropagating the loss value backwards in time using the decomposition components to determine an influence of changes in the structural parameters of the electromagnetic device on the loss value. The operations further include generating a revised description of the electromagnetic device by updating the structural parameters to reduce the loss value.

公开(公告)号：US10243415B1

公开(公告)日：2019-03-26

申请号：US15393955

申请日：2016-12-29

Applicant: X Development LLC

Inventor： Michael Grundmann ,  Brian Adolf ,  Eric Liu ,  Mathias Fleck ,  Maaike Evers ,  Matt Swinton ,  Michael Simonian

IPC: B60L11/18 ,  H02J50/12 ,  H02J50/50 ,  H02J50/80 ,  H02J50/90

Abstract: Disclosed herein are systems and methods for providing wireless power. The method includes determining a route in an area for a charger vehicle, where the charger vehicle includes a primary wireless power transceiver. The method further includes determining a schedule according to which the charger vehicle travels along the route. The method also includes determining a number of repeater vehicles to deploy in the area to extend a range of the primary transceiver of the charger vehicle. Further, the method includes deploying the determined number of repeater vehicles into the area. Furthermore, the method includes coupling each of the repeater vehicles to the charger vehicle via a respective first wireless resonant coupling link.