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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
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.
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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
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.
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13.发明授权公开(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
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.
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14.发明授权公开(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.
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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.
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Patent Agency Ranking
公开(公告)号：US20220100921A1
公开(公告)日：2022-03-31
申请号：US17037226
申请日：2020-09-29
Applicant: X Development LLC
Inventor： Martin Schubert , David Alexander
IPC: G06F30/20
Abstract: In some embodiments, techniques for creating a fabricable segmented design for a physical device are 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 one or more fabricable segmented designs based on the proposed segmented design. The computing system determines an overall fabrication loss value based on the one or more fabricable segmented designs. The computing system backpropagates a gradient of the overall fabrication loss value to create an updated design specification.
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17.发明申请公开(公告)号：US20220100914A1
公开(公告)日：2022-03-31
申请号：US17036722
申请日：2020-09-29
Applicant: X Development LLC
Inventor： Martin Schubert
IPC: G06F30/10
Abstract: In some embodiments, a method of creating a fabricable segmented design for a physical device is provided. A computing system receives a design specification. The computing system optimizes an initial segmented design based on the design specification to create an improved segmented design. The computing system perturbs the improved segmented design to create a perturbed segmented design. The computing system optimizes the perturbed segmented design to create a second improved segmented design.
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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
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.
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19.发明申请公开(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
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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公开(公告)号：US11157163B1
公开(公告)日：2021-10-26
申请号：US17036454
申请日：2020-09-29
Applicant: X Development LLC
Inventor： Jesse Lu , Martin Schubert
IPC: G06F3/0488 , G06F3/041
Abstract: Techniques for ensuring fabricability of segmented designs are provided. In some embodiments, a computing system receives a design specification to be used to create a proposed segmented design. Each segment of the proposed segmented design indicates a material within the segment. The proposed segmented design includes segments that indicate at least two different materials. The computing system chooses a segment to touch with a paintbrush pattern for a first material. The computing system updates a set of material statuses for each material based on the chosen segment. The computing system updates a set of touch statuses for each material based on the chosen segment. The choosing and updating actions are repeated until all segments are associated with a material. The computing system generates the proposed segmented design based on the sets of material statuses.
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