Patents by Inventor Jesse Lu
Jesse Lu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11397895Abstract: A computer-implemented method for revising structural parameters of a physical device is provided. The method comprises configuring a simulated environment to be representative of the physical device based on an initial description that describes structural parameters of the physical device. The method further includes performing an operational simulation of the physical device based on training data representative of physical stimuli within a physical domain to simulate an interaction between the physical device and the physical stimuli. The method further includes computing a loss value based on a simulated output of the physical device and performing and adjoint simulation by backpropagating the loss value through the simulated environment. The method also includes generating a revised description of the physical device by updating the structural parameters to reduce the loss value.Type: GrantFiled: April 24, 2019Date of Patent: July 26, 2022Assignee: X Development LLCInventors: Jesse Lu, Brian Adolf, Martin Schubert
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Patent number: 11379633Abstract: 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.Type: GrantFiled: June 5, 2019Date of Patent: July 5, 2022Assignee: X Development LLCInventors: Brian Adolf, Martin Schubert, Jesse Lu
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Publication number: 20220203357Abstract: Disclosed is an assay device comprising a high density of wells aligned thereon.Type: ApplicationFiled: March 18, 2022Publication date: June 30, 2022Inventors: Yi Zhang, Jesse Lu, Alex Price, Pengyu Yang, Kandaswamy Vijayan
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Publication number: 20220131632Abstract: 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.Type: ApplicationFiled: January 11, 2022Publication date: April 28, 2022Inventors: Martin Schubert, Brian Adolf, Jesse Lu
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Patent number: 11305288Abstract: Disclosed is an assay device comprising a high density of wells aligned thereon.Type: GrantFiled: January 28, 2020Date of Patent: April 19, 2022Assignee: Plexium, Inc.Inventors: Yi Zhang, Jesse Lu, Alex Price, Pengyu Yang, Kandaswamy Vijayan
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Publication number: 20220077948Abstract: 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.Type: ApplicationFiled: November 17, 2021Publication date: March 10, 2022Inventors: Jesse Lu, Brian Adolf, Martin Schubert
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Patent number: 11258527Abstract: 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.Type: GrantFiled: October 29, 2020Date of Patent: February 22, 2022Assignee: X Development LLCInventors: Martin Schubert, Brian Adolf, Jesse Lu
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Patent number: 11238190Abstract: 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.Type: GrantFiled: April 23, 2019Date of Patent: February 1, 2022Assignee: X Development LLCInventors: Jesse Lu, Brian Adolf, Martin Schubert
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Publication number: 20220026635Abstract: 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.Type: ApplicationFiled: September 30, 2021Publication date: January 27, 2022Inventors: Martin Schubert, Brian Adolf, Jesse Lu
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Publication number: 20210402404Abstract: A microfluidic system for fluid transport is provided. The microfluidic system includes a microfluidic device. The microfluidic device includes an inlet body including an inlet. The microfluidic device includes a base supporting the inlet body. The base includes a channel in fluid communication with the inlet. The base includes one or more sensors formed on a surface of the channel, or one or more sensors formed in one or more wells formed in the surface of the channel. The channel is configured to facilitate flow of the fluid. The fluid includes a plurality of beads. The fluid includes a plurality of suspended cells. The inlet is configured to receive the fluid at an inlet port. The inlet is configured to output the fluid through an opening in fluid communication with the channel. The inlet is configured to provide substantially uniform flow of the fluid across a substantial portion of a horizontal dimension of the channel. The device is configured to compensate for edge effects otherwise present therein.Type: ApplicationFiled: June 30, 2021Publication date: December 30, 2021Inventors: Edgar Gutierrez, Jesse Lu
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Patent number: 11205022Abstract: 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.Type: GrantFiled: January 10, 2019Date of Patent: December 21, 2021Assignee: X Development LLCInventors: Jesse Lu, Martin Schubert, Brian Adolf
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Patent number: 11196503Abstract: 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.Type: GrantFiled: February 20, 2020Date of Patent: December 7, 2021Assignee: X Development LLCInventors: Jesse Lu, Brian Adolf, Martin Schubert
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Patent number: 11187854Abstract: 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.Type: GrantFiled: November 15, 2019Date of Patent: November 30, 2021Assignee: X Development LLCInventors: Martin Schubert, Brian Adolf, Jesse Lu
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PHYSICAL DEVICE OPTIMIZATION WITH REDUCED MEMORY FOOTPRINT VIA TIME REVERSAL AT ABSORBING BOUNDARIES
Publication number: 20210357554Abstract: 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.Type: ApplicationFiled: July 28, 2021Publication date: November 18, 2021Inventors: Brian Adolf, Martin Schubert, Jesse Lu -
Patent number: 11157163Abstract: 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.Type: GrantFiled: September 29, 2020Date of Patent: October 26, 2021Assignee: X Development LLCInventors: Jesse Lu, Martin Schubert
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Publication number: 20210308668Abstract: This disclosure provides for devices and methods for conduction assays for combinatorial libraries. The devices comprise a multiplicity of wells and a removable cap.Type: ApplicationFiled: June 21, 2021Publication date: October 7, 2021Inventors: Kapil Mahakalkar, Kenneth Chung, Jesse Lu, Edgar Gutierrez, Yi Zhang
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Publication number: 20210305767Abstract: 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.Type: ApplicationFiled: May 14, 2021Publication date: September 30, 2021Inventors: Martin Friedrich Schubert, Brian John Adolf, Jesse Lu
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Physical device optimization with reduced memory footprint via time reversal at absorbing boundaries
Patent number: 11106841Abstract: 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.Type: GrantFiled: April 29, 2019Date of Patent: August 31, 2021Assignee: X Development LLCInventors: Brian Adolf, Martin Schubert, Jesse Lu -
Publication number: 20210266088Abstract: 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.Type: ApplicationFiled: February 20, 2020Publication date: August 26, 2021Inventors: Jesse Lu, Brian Adolf, Martin Schubert
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Publication number: 20210229087Abstract: Disclosed is an assay device comprising a high density of wells aligned thereon.Type: ApplicationFiled: January 28, 2020Publication date: July 29, 2021Inventors: Yi ZHANG, Jesse LU, Alex PRICE, Pengyu YANG, Kandaswamy VIJAYAN