公开(公告)号：US20180138748A1

公开(公告)日：2018-05-17

申请号：US15353638

申请日：2016-11-16

Applicant: X Development LLC

Inventor： Brian Adolf ,  Eric Liu

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/40 ,  H02J50/90

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/40 ,  H02J50/90

Abstract: Systems and methods described herein may relate to wireless energy transfer between a transmitter and a receiver via resonant coupling. In example embodiments, a method includes identifying a receiver in a wireless power transmission system and identifying a transmitter in the wireless power transmission system. The method also includes determining a real-time per-unit offer corresponding to the identified receiver and determining a real-time per-unit request corresponding to the identified transmitter. The method yet further includes determining a real-time per-unit match based on the offer and the request. The method further includes, in response to determining the match, causing the transmitter to provide electrical energy to the receiver via a wireless resonant coupling link.

公开(公告)号：US09961333B1

公开(公告)日：2018-05-01

申请号：US15178685

申请日：2016-06-10

Applicant: X Development LLC

Inventor： Brian Adolf ,  Richard DeVaul

IPC: G03B21/602 ,  H04N9/31 ,  H04N13/04 ,  G03B21/606 ,  G02B26/12 ,  G02B26/10

CPC classification number: H04N13/363 ,  G02B26/101 ,  G02B26/123 ,  G03B21/602 ,  G03B21/606 ,  G03B35/24 ,  H04N9/3129 ,  H04N9/3135 ,  H04N9/3161 ,  H04N9/3164 ,  H04N13/305 ,  H04N13/307 ,  H04N13/351 ,  H04N13/354 ,  H04N13/366 ,  H04N13/398

Abstract: The present disclosure relates to systems and methods for projecting a light field. One light field projection system includes a screen and a projection unit. On the screen, there is a plurality of convex reflective elements arranged in a two-dimensional array. The projection unit has a light source. The projection unit also has a modulator to modulate light from the light source. The projection unit further has one or more movable mirrored elements to reflect light from the light source toward the screen to sequentially scan the plurality of convex reflective elements. The projection unit also has a control system that determines a light modulation scheme used by the modulator. The light modulation scheme provides that the light reflected from the light source toward the screen to sequentially scan the plurality of convex reflective elements forms a light field that is concurrently viewable from a plurality of perspectives.

公开(公告)号：US20250086347A1

公开(公告)日：2025-03-13

申请号：US18463983

申请日：2023-09-08

Applicant: X Development LLC

Inventor： Brian Adolf ,  Aaditya Chandrasekhar

IPC: G06F30/20

Abstract: In some embodiments, a computer-implemented method for simulating performance of a physical device is provided. Calculating a current time step of an operational simulation of the physical device includes, for each voxel of a simulated environment, concurrently with loading a set of field values for the voxel for a previous time step from a main memory, determining permittivity values for the voxel using feature parameter values. The computing system calculates a set of field values for the voxel for the current time step based on the set of field values for the voxel for the previous time step and the permittivity values.

公开(公告)号：US11934761B2

公开(公告)日：2024-03-19

申请号：US17122984

申请日：2020-12-15

Applicant: X Development LLC

Inventor： Jaspreet Singh Jhoja ,  Brian Adolf

IPC: G06F30/39 ,  G06F119/18

CPC classification number: G06F30/39 ,  G06F2119/18

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：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

IPC: G06F30/20 ,  G06F30/17 ,  G06T17/00

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：US20230052816A1

公开(公告)日：2023-02-16

申请号：US17402141

申请日：2021-08-13

Applicant: X Development LLC

Inventor： Brian Adolf ,  Martin Schubert ,  Jesse Lu

IPC: G06F30/20 ,  G06F30/10

Abstract: In some embodiments, a computer-implemented method for creating a fabricable segmented design for a physical device is provided. A computing system receives a design specification. The computing system generates a proposed segmented design based on the design specification. The computing system determines two or more loss values based on the proposed segmented design. The computing system combines the two or more loss values to create a combined loss value. The computing system creates an updated design specification using the combined loss value. At least some of the generating, determining, combining, and creating actions are repeated until a fabricable segmented design is generated.

公开(公告)号：US11550971B1

公开(公告)日：2023-01-10

申请号：US16251708

申请日：2019-01-18

Applicant: X Development LLC

Inventor： Jesse Lu ,  Brian Adolf ,  Martin Schubert

IPC: G06F7/544 ,  G06F30/20 ,  G06N3/04 ,  G06F17/16

Abstract: At least one machine-accessible storage medium that provides instructions that, when executed by a machine, will cause the machine to perform operations. The operations comprise configuring a simulated environment to be representative of a physical device based, at least in part, on an initial description of the physical device that described structural parameters of the physical device. The operations further comprise performing a physics simulation with an artificial intelligence (“AI”) accelerator. The AI accelerator includes a matrix multiply unit for computing convolution operations via a plurality of multiply-accumulate units. The operations further comprise computing a field response in response of the physical device in response to an excitation source within the simulated environment when performing the physics simulation. The field response is computed, at least in part, with the convolution operations to perform spatial differencing.

公开(公告)号：US11501169B1

公开(公告)日：2022-11-15

申请号：US16398697

申请日：2019-04-30

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: G06F17/14 ,  G06T11/00 ,  G06F30/20 ,  G06N3/08 ,  G06N3/04 ,  G06F3/06

Abstract: A method of optimizing structural parameters of a physical device includes: receiving an initial description of the physical device that describes the physical device with an array of voxels that each describe one or more of the structural parameters; performing a time-forward simulation of a field response propagating through the physical device and interacting with the voxels in a simulated environment, wherein the field response is influenced by the structural parameters of the voxels; generating field response values describing the field response at each of the voxels for each of a plurality of time steps; encoding the field response values to generate compressed field response values; storing the compressed field response values; decoding one or more of the compressed field response values to extract regenerated field response values; and generating a revised description of the physical device having a structural parameter optimized.

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.