Patents Assigned to LightOn
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Patent number: 11574178Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator, and an optical detector coupled to the medium. The optical detector may obtain various optical signals that are transmitted through the medium at various predetermined spatial light modulations using the adjustable spatial light modulator. The system may further include a controller coupled to the optical detector and the adjustable spatial light modulator. The controller may train an electronic model using various synthetic gradients based on the optical signals.Type: GrantFiled: May 26, 2021Date of Patent: February 7, 2023Assignee: LightOnInventors: Iacopo Poli, Julien Launay, Kilian Müller, Gustave Pariente, Igor Carron, Laurent Daudet, Ruben Ohana, Daniel Hesslow
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Publication number: 20220188688Abstract: A training node may include a first processor coupled to a first memory, and a second processor coupled to a second memory. The training node may further include a synthetic gradient processing unit (SGPU) coupled to a third memory, the first processor and the second processor. A portion of an electronic model may be disposed in the first memory, the second memory, and the third memory. The SGPU may generate a synthetic gradient signal based on an error data signal from the first processor and the portion of the electronic model. The synthetic gradient signal may update the electronic model during a training operation for the electronic model.Type: ApplicationFiled: December 10, 2020Publication date: June 16, 2022Applicant: LightOnInventors: Julien Launay, Iacopo Poli, Kilian Müller, Gustave Pariente, Igor Carron, Laurent Daudet
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Patent number: 11313667Abstract: The present description relates to a stabilized interferometric system comprising: a light source (210) for emitting an initial beam of coherent light; a spatial light modulator (220) configured to receive at least a first part of said initial beam and input data (203) and configured to emit a spatially modulated beam resulting from a spatial modulation of a parameter of said first part of said initial beam based on said input data; a scattering medium (230) configured to receive said spatially modulated beam; a detection unit (240) configured to acquire an interference pattern (IN0) resulting from the interferences between randomly scattered optical paths taken by the spatially modulated beam through the scattering material; a control unit (250) configured to vary the frequency of the laser source in order to at least partially compensate a change in said interference pattern resulting from a change in at least one environmental parameter.Type: GrantFiled: August 7, 2020Date of Patent: April 26, 2022Assignee: LightOn SASInventors: Kilian Müller, Laurent Daudet, Igor Carron, Gustave Pariente
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Patent number: 11137289Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator. The system may further include a beam splitter coupled to the optical source and the adjustable spatial light modulator. The beam splitter may generate a first optical signal and a second optical signal using the optical source. The system may further include an optical detector coupled to the beam splitter and the medium. The optical detector may obtain a combined optical signal including a resulting optical signal and the second optical signal. The resulting optical signal may be produced by transmitting the first optical signal through the medium at a predetermined spatial light modulation using the adjustable spatial light modulator.Type: GrantFiled: March 11, 2020Date of Patent: October 5, 2021Assignee: LightOnInventors: Iacopo Poli, Julien Launay, Kilian Müller, Gustave Pariente, Igor Carron, Laurent Daudet
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Publication number: 20210285819Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator. The system may further include a beam splitter coupled to the optical source and the adjustable spatial light modulator. The beam splitter may generate a first optical signal and a second optical signal using the optical source. The system may further include an optical detector coupled to the beam splitter and the medium. The optical detector may obtain a combined optical signal including a resulting optical signal and the second optical signal. The resulting optical signal may be produced by transmitting the first optical signal through the medium at a predetermined spatial light modulation using the adjustable spatial light modulator.Type: ApplicationFiled: March 11, 2020Publication date: September 16, 2021Applicant: LightOnInventors: Iacopo Poli, Julien Launay, Kilian Müller, Gustave Pariente, Igor Carron, Laurent Daudet
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Publication number: 20210287079Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator, and an optical detector coupled to the medium. The optical detector may obtain various optical signals that are transmitted through the medium at various predetermined spatial light modulations using the adjustable spatial light modulator. The system may further include a controller coupled to the optical detector and the adjustable spatial light modulator. The controller may train an electronic model using various synthetic gradients based on the optical signals.Type: ApplicationFiled: May 26, 2021Publication date: September 16, 2021Applicant: LightOnInventors: Iacopo Poli, Julien Launay, Kilian Müller, Gustave Pariente, Igor Carron, Laurent Daudet, Ruben Ohana, Daniel Hesslow
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Publication number: 20210041219Abstract: According to one aspect, the present description relates to a stabilized interferometric system comprising a light source (210) for emitting an initial beam (B0) of coherent light and a spatial light modulator (220) configured to receive at least a first part of said initial beam and input data (203), and configured to emit a spatially modulated beam (B0m) resulting from a spatial modulation of a parameter of said first part of said initial beam based on said input data. The stabilized interferometric system further comprises a scattering medium (230) configured to receive said spatially modulated beam and a detection unit (240) configured to acquire an interference pattern (IN0) in a first detection plane (241) at an output of said scattering material, wherein said interference pattern results from the interferences between randomly scattered optical paths taken by the spatially modulated beam through the scattering material.Type: ApplicationFiled: August 7, 2020Publication date: February 11, 2021Applicant: LightOn SASInventors: Kilian Müller, Laurent Daudet, Igor Carron, Gustave Pariente