Patents by Inventor Ehsan HOSSEINI
Ehsan HOSSEINI 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: 11960006Abstract: Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range.Type: GrantFiled: June 24, 2021Date of Patent: April 16, 2024Assignee: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Diedrik Vermeulen
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Patent number: 11960192Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: October 31, 2022Date of Patent: April 16, 2024Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11934952Abstract: Embodiments described herein provide natural language processing (NLP) systems and methods that utilize energy-based models (EBMs) to compute an exponentially-weighted energy-like term in the loss function to train an NLP classifier. Specifically, noise contrastive estimation (NCE) procedures are applied together with the EBM-based loss objectives for training the NLPs.Type: GrantFiled: December 16, 2020Date of Patent: March 19, 2024Assignee: Salesforce, Inc.Inventors: Tianxing He, Ehsan Hosseini-Asl, Bryan McCann, Caiming Xiong
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Publication number: 20240078389Abstract: Sentiment analysis is a task in natural language processing. The embodiments are directed to using a generative language model to extract an aspect term, aspect category and their corresponding polarities. The generative language model may be trained as a single, joint, and multi-task model. The single-task generative language model determines a term polarity from the aspect term in the sentence or a category polarity from an aspect category in the sentence. The joint-task generative language model determines both the aspect term and the term polarity or the aspect category and the category polarity. The multi-task generative language model determines the aspect term, term polarity, aspect category and category polarity of the sentence.Type: ApplicationFiled: November 9, 2023Publication date: March 7, 2024Inventors: Ehsan Hosseini-Asl, Wenhao Liu
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Publication number: 20240009986Abstract: The present disclosure generally relates to a method of producing a film for use with de-icing and EMI shielding. The film is a multilayer film on a substrate comprising a layer of PEFOT:PSS, a AgNW layer and a second PEDOT:PSS layer. The film is produced by a simple low-cost fabrication method and does not require vacuum, pressing or high temperature processing.Type: ApplicationFiled: June 30, 2021Publication date: January 11, 2024Inventors: Ehsan HOSSEINI, Kunai KARAN, Uttandaraman SUNDARARAJ, Mohammad ARJMAND
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Patent number: 11853706Abstract: Sentiment analysis is a task in natural language processing. The embodiments are directed to using a generative language model to extract an aspect term, aspect category and their corresponding polarities. The generative language model may be trained as a single, joint, and multi-task model. The single-task generative language model determines a term polarity from the aspect term in the sentence or a category polarity from an aspect category in the sentence. The joint-task generative language model determines both the aspect term and the term polarity or the aspect category and the category polarity. The multi-task generative language model determines the aspect term, term polarity, aspect category and category polarity of the sentence.Type: GrantFiled: September 8, 2021Date of Patent: December 26, 2023Assignee: salesforce.com, inc.Inventors: Ehsan Hosseini-Asl, Wenhao Liu
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Patent number: 11809058Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: July 8, 2021Date of Patent: November 7, 2023Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11768418Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: July 29, 2021Date of Patent: September 26, 2023Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Publication number: 20230236471Abstract: Aspects of the present disclosure describe optical phased array structures and devices in which hyperbolic phase envelopes are employed to create focusing and diverging emissions in one and two dimensions. Tuning the phase fronts moves focal point spot in depth and across the array. Grating emitters are also used to emit light upward (out of plane). Adjusting the period of the gratings along the light propagation direction results in focusing the light emitted from the gratings. Changes in the operating wavelengths employed moves the focal spot along the emitters.Type: ApplicationFiled: March 8, 2023Publication date: July 27, 2023Applicant: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts
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Patent number: 11676022Abstract: A method for training parameters of a first domain adaptation model. The method includes evaluating a cycle consistency objective using a first task specific model associated with a first domain and a second task specific model associated with a second domain, and evaluating one or more first discriminator models to generate a first discriminator objective using the second task specific model. The one or more first discriminator models include a plurality of discriminators corresponding to a plurality of bands that corresponds domain variable ranges of the first and second domains respectively. The method further includes updating, based on the cycle consistency objective and the first discriminator objective, one or more parameters of the first domain adaptation model for adapting representations from the first domain to the second domain.Type: GrantFiled: August 30, 2021Date of Patent: June 13, 2023Assignee: salesforce.com, inc.Inventors: Ehsan Hosseini-Asl, Caiming Xiong, Yingbo Zhou, Richard Socher
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Patent number: 11619718Abstract: Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—that employ multiple detectors that may determine multiple incident angles of multiple received radiation beams and advantageously do not require or employ phase shifters in illustrative embodiments and may instead—employ optical Fourier transform structures.Type: GrantFiled: December 21, 2021Date of Patent: April 4, 2023Assignee: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Matthew Byrd, Diedrik Vermeulen, Peter Russo
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Patent number: 11604397Abstract: Aspects of the present disclosure describe optical phased array structures and devices in which hyperbolic phase envelopes are employed to create focusing and diverging emissions in one and two dimensions. Tuning the phase fronts moves focal point spot in depth and across the array. Grating emitters are also used to emit light upward (out of plane). Adjusting the period of the gratings along the light propagation direction results in focusing the light emitted from the gratings. Changes in the operating wavelengths employed moves the focal spot along the emitters.Type: GrantFiled: April 27, 2021Date of Patent: March 14, 2023Assignee: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts
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Publication number: 20230058824Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: ApplicationFiled: October 31, 2022Publication date: February 23, 2023Inventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Publication number: 20230052542Abstract: At least one beam of an optical wave is transmitted along a transmission angle toward a target location from a send aperture of a transmitter. The optical wave comprises at least a first portion, and a second portion having a different characteristic from a characteristic of the first portion. Two or more receivers include at least one receiver comprising: a receive aperture arranged in proximity to at least one of the send aperture or a receive aperture of a different receiver, an optical phased array within the receive aperture, the optical phased array being configured to receive at least a portion of a collected optical wave arriving at the receive aperture along a respective collection angle, and a filter configured to filter the received portion of the collected optical wave according to the characteristic of the first portion of the optical wave.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Inventors: Peter Nicholas Russo, Christopher Vincent Poulton, Matthew Byrd, Zhan Su, Ehsan Hosseini, Michael Robert Watts
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Patent number: 11526063Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: September 28, 2020Date of Patent: December 13, 2022Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11525915Abstract: At least one beam of an optical wave is transmitted along a transmission angle toward a target location from a send aperture of a transmitter. The optical wave comprises at least a first portion, and a second portion having a different characteristic from a characteristic of the first portion. Two or more receivers include at least one receiver comprising: a receive aperture arranged in proximity to at least one of the send aperture or a receive aperture of a different receiver, an optical phased array within the receive aperture, the optical phased array being configured to receive at least a portion of a collected optical wave arriving at the receive aperture along a respective collection angle, and a filter configured to filter the received portion of the collected optical wave according to the characteristic of the first portion of the optical wave.Type: GrantFiled: March 20, 2020Date of Patent: December 13, 2022Assignee: Analog Photonics LLCInventors: Peter Nicholas Russo, Christopher Vincent Poulton, Matthew Byrd, Zhan Su, Ehsan Hosseini, Michael Robert Watts
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Patent number: 11509116Abstract: An internal laser component of an optical device comprises: a waveguide that defines a guided mode of a first optical wave characterized by a first propagation constant associated with a first effective refractive index. An optical antenna grating comprises: a waveguide that defines a guided mode of a second optical wave characterized by a second propagation constant associated with a second effective refractive index, and a grating structure configured to emit a portion of the second optical wave in a selected direction. The internal laser component and the optical antenna grating are configured to provide a relationship between the first effective refractive index and the second effective refractive index such that the selected direction is substantially insensitive to a change in a temperature of a thermal environment in which the internal laser component and the optical antenna grating are thermally coupled.Type: GrantFiled: October 18, 2019Date of Patent: November 22, 2022Assignee: Analog Photonics LLCInventors: Diedrik Vermeulen, Patrick Callahan, Michael Watts, Ehsan Hosseini, Christopher Vincent Poulton
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Publication number: 20220366145Abstract: Sentiment analysis is a task in natural language processing. The embodiments are directed to using a generative language model to extract an aspect term, aspect category and their corresponding polarities. The generative language model may be trained as a single, joint, and multi-task model. The single-task generative language model determines a term polarity from the aspect term in the sentence or a category polarity from an aspect category in the sentence. The joint-task generative language model determines both the aspect term and the term polarity or the aspect category and the category polarity. The multi-task generative language model determines the aspect term, term polarity, aspect category and category polarity of the sentence.Type: ApplicationFiled: September 8, 2021Publication date: November 17, 2022Inventors: Ehsan Hosseini-Asl, Wenhao Liu
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Patent number: 11330468Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, related to low power techniques for a BLE device during a scanning state. The BLE device is configured to scan for a preamble of a packet while in a first power mode and detect when a bit of the preamble is received. Upon detecting that the bit of the preamble is received, the BLE device switches from the first power mode to a second power having a higher operating power for the BLE device than the first power mode. The switch in power modes occurs while the preamble is being received or immediately after the preamble is received and before an access address of the packet is received. The BLE device, while in the second power mode, then scans for the access address of the packet.Type: GrantFiled: March 27, 2020Date of Patent: May 10, 2022Assignee: QUALCOMM INCORPORATEDInventors: Seyed Mohammad Ehsan Hosseini, Le Nguyen Luong, Eunmo Kang, Dongsik Kim
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Publication number: 20220113389Abstract: Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—that employ multiple detectors that may determine multiple incident angles of multiple received radiation beams and advantageously do not require or employ phase shifters in illustrative embodiments and may instead—employ optical Fourier transform structures.Type: ApplicationFiled: December 21, 2021Publication date: April 14, 2022Applicant: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Matthew Byrd, Diedrik Vermeulen, Peter Russo