Patents by Inventor Sergio Alvarez

Sergio Alvarez 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).

  • Patent number: 12326518
    Abstract: An asymmetric whispering gallery mode resonator device is described. The resonator device includes an asymmetric whispering gallery mode resonator disk (e.g., transparent material, electrooptic material). The resonator disk includes an axial surface along a perimeter of the resonator disk, a top surface, and a bottom surface. A first midplane passes through the axial surface dividing the axial surface into symmetrical halves. The top surface and the bottom surface are substantially parallel, and a second midplane is substantially equidistant between the top surface and the bottom surface. The first midplane and the second midplane are non-coextensive. The asymmetric whispering gallery mode resonator disk can further include a first chamfered edge between the top surface and the axial surface, and a second chamfered edge between the bottom surface and the axial surface. Moreover, the resonator device includes a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: June 10, 2025
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Ivan Grudinin, Vladimir Ilchenko, Lutfollah Maleki, Sergio Alvarez
  • Publication number: 20250149013
    Abstract: Aspects of the disclosure relate to personal stage monitoring (PSM) systems and methods. A PSM system may include a transmitter and a receiver, where the transmitter may transmit audio data to the receiver to provide performers with monitoring feedback. The PSM transmitter may include audio processing and/or personal mixing devices that provide a customized mix of audio signals that may be transmitted to the receiver. The PSM transmitter and/or PSM receiver of the PSM system may include controller that facilitate a remote control of the other of the other device.
    Type: Application
    Filed: January 10, 2025
    Publication date: May 8, 2025
    Applicant: Shure Acquisition Holdings, Inc.
    Inventors: Sergio Alvarez, Marianela Schanz, Bryan Jozwiak, Leif Moravy, Jonathan Portwood
  • Publication number: 20240405867
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) in an optical wireless communications system may utilize a curved focal plane of a condenser lens to communicate an optical wireless signal. An optical front-end (OFE) of the UE may include one or more optical communication components located at varying distances from the condenser lens on a curved focal plane of the condenser lens. Additionally or alternatively, the UE may adjust a position of one or more optical communication components on the curved focal plane. Additionally or alternatively, the OFE may include an array of condenser lenses and optical communication components each optically coupled with one or more condenser lenses. The UE may perform equal gain combination and/or equal ratio power splitting to communicate an optical wireless signal using the array of condenser lenses and optical communication components.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 5, 2024
    Inventors: Yisheng XUE, Karoly BECZE, Xiaoxia ZHANG, Junyi LI, Morteza SOLTANI, Sam LIU, Jing SUN, Jason BUSH, Timothy VU, Sergio ALVAREZ
  • Patent number: 11594858
    Abstract: A high Q whispering gallery mode resonator with ion-implanted voids is described. A resonator device includes a resonator disk formed of an electrooptic material. The resonator disk includes a top surface, a bottom surface substantially parallel to the top surface, and a side structure between the top surface and the bottom surface. The side structure includes an axial surface along a perimeter of the resonator disk, where a midplane passes through the axial surface dividing the axial surface into symmetrical halves. The whispering gallery mode resonator disk includes voids localized at a particular depth from the top surface. At least one of the voids localized at the particular depth from the top surface is located at an outer extremity towards the perimeter of the resonator disk. The resonator device can further include a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: February 28, 2023
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Scott Singer, Lutfollah Maleki, Ivan Grudinin, Sergio Alvarez, Vladimir Ilchenko
  • Publication number: 20220397646
    Abstract: An asymmetric whispering gallery mode resonator device is described. The resonator device includes an asymmetric whispering gallery mode resonator disk (e.g., transparent material, electrooptic material). The resonator disk includes an axial surface along a perimeter of the resonator disk, a top surface, and a bottom surface. A first midplane passes through the axial surface dividing the axial surface into symmetrical halves. The top surface and the bottom surface are substantially parallel, and a second midplane is substantially equidistant between the top surface and the bottom surface. The first midplane and the second midplane are non-coextensive. The asymmetric whispering gallery mode resonator disk can further include a first chamfered edge between the top surface and the axial surface, and a second chamfered edge between the bottom surface and the axial surface. Moreover, the resonator device includes a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Application
    Filed: August 22, 2022
    Publication date: December 15, 2022
    Inventors: Ivan Grudinin, Vladimir Ilchenko, Lutfollah Maleki, Sergio Alvarez
  • Patent number: 11454707
    Abstract: An asymmetric whispering gallery mode resonator device is described. The resonator device includes an asymmetric whispering gallery mode resonator disk (e.g., transparent material, electrooptic material). The resonator disk includes an axial surface along a perimeter of the resonator disk, a top surface, and a bottom surface. A first midplane passes through the axial surface dividing the axial surface into symmetrical halves. The top surface and the bottom surface are substantially parallel, and a second midplane is substantially equidistant between the top surface and the bottom surface. The first midplane and the second midplane are non-coextensive. The asymmetric whispering gallery mode resonator disk can further include a first chamfered edge between the top surface and the axial surface, and a second chamfered edge between the bottom surface and the axial surface. Moreover, the resonator device includes a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 27, 2022
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Ivan Grudinin, Vladimir Ilchenko, Lutfollah Maleki, Sergio Alvarez
  • Publication number: 20220072532
    Abstract: System that enables urine testing in a home environment. A user may apply a urine sample to a card containing multiple tests, and capture an image of the card using a phone; an analysis system executing on the phone or in the cloud may analyze the image and determine test results. The test card and analysis system may compensate for variability in lighting conditions and time of exposure to the urine sample, which are difficult to control in a home environment. The test card may contain fiducial markers of known colors; the analysis system may adjust colors in the captured image based on appearance of these markers. Color adjustments may also compensate for nonuniform lighting across the card. The card may also contain time indicators that change appearance over time after urine is applied, and the analysis system may use these indicators to calculate the time of exposure.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 10, 2022
    Applicant: VESSEL HEALTH, INC.
    Inventors: Matthew MCCORD, Jon CARDER, Jesus GONZALEZ, Sergio ALVAREZ
  • Patent number: 11192100
    Abstract: System that enables urine testing in a home environment. A user may apply a urine sample to a card containing multiple tests, and capture an image of the card using a phone; an analysis system executing on the phone or in the cloud may analyze the image and determine test results. The test card and analysis system may compensate for variability in lighting conditions and time of exposure to the urine sample, which are difficult to control in a home environment. The test card may contain fiducial markers of known colors; the analysis system may adjust colors in the captured image based on appearance of these markers. Color adjustments may also compensate for nonuniform lighting across the card. The card may also contain time indicators that change appearance over time after urine is applied, and the analysis system may use these indicators to calculate the time of exposure.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: December 7, 2021
    Assignee: VESSEL HEALTH, INC.
    Inventors: Matthew McCord, Jon Carder, Jesus Gonzalez, Sergio Alvarez
  • Publication number: 20210328405
    Abstract: A high Q whispering gallery mode resonator with ion-implanted voids is described. A resonator device includes a resonator disk formed of an electrooptic material. The resonator disk includes a top surface, a bottom surface substantially parallel to the top surface, and a side structure between the top surface and the bottom surface. The side structure includes an axial surface along a perimeter of the resonator disk, where a midplane passes through the axial surface dividing the axial surface into symmetrical halves. The whispering gallery mode resonator disk includes voids localized at a particular depth from the top surface. At least one of the voids localized at the particular depth from the top surface is located at an outer extremity towards the perimeter of the resonator disk. The resonator device can further include a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Scott Singer, Lutfollah Maleki, Ivan Grudinin, Sergio Alvarez, Vladimir Ilchenko
  • Publication number: 20210299651
    Abstract: System that enables urine testing in a home environment. A user may apply a urine sample to a card containing multiple tests, and capture an image of the card using a phone; an analysis system executing on the phone or in the cloud may analyze the image and determine test results. The test card and analysis system may compensate for variability in lighting conditions and time of exposure to the urine sample, which are difficult to control in a home environment. The test card may contain fiducial markers of known colors; the analysis system may adjust colors in the captured image based on appearance of these markers. Color adjustments may also compensate for nonuniform lighting across the card. The card may also contain time indicators that change appearance over time after urine is applied, and the analysis system may use these indicators to calculate the time of exposure.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Applicant: BLOOM HEALTH, INC.
    Inventors: Matthew MCCORD, Jon CARDER, Jesus GONZALEZ, Sergio ALVAREZ
  • Patent number: 11081859
    Abstract: A high Q whispering gallery mode resonator with ion-implanted voids is described. A resonator device includes a resonator disk formed of an electrooptic material. The resonator disk includes a top surface, a bottom surface substantially parallel to the top surface, and a side structure between the top surface and the bottom surface. The side structure includes an axial surface along a perimeter of the resonator disk, where a midplane passes through the axial surface dividing the axial surface into symmetrical halves. The whispering gallery mode resonator disk includes voids localized at a particular depth from the top surface. At least one of the voids localized at the particular depth from the top surface is located at an outer extremity towards the perimeter of the resonator disk. The resonator device can further include a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: August 3, 2021
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Scott Singer, Lutfollah Maleki, Ivan Grudinin, Sergio Alvarez, Vladimir Ilchenko
  • Publication number: 20210098968
    Abstract: A high Q whispering gallery mode resonator with ion-implanted voids is described. A resonator device includes a resonator disk formed of an electrooptic material. The resonator disk includes a top surface, a bottom surface substantially parallel to the top surface, and a side structure between the top surface and the bottom surface. The side structure includes an axial surface along a perimeter of the resonator disk, where a midplane passes through the axial surface dividing the axial surface into symmetrical halves. The whispering gallery mode resonator disk includes voids localized at a particular depth from the top surface. At least one of the voids localized at the particular depth from the top surface is located at an outer extremity towards the perimeter of the resonator disk. The resonator device can further include a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 1, 2021
    Inventors: Scott Singer, Lutfollah Maleki, Ivan Grudinin, Sergio Alvarez, Vladimir Ilchenko
  • Publication number: 20210096222
    Abstract: An asymmetric whispering gallery mode resonator device is described. The resonator device includes an asymmetric whispering gallery mode resonator disk (e.g., transparent material, electrooptic material). The resonator disk includes an axial surface along a perimeter of the resonator disk, a top surface, and a bottom surface. A first midplane passes through the axial surface dividing the axial surface into symmetrical halves. The top surface and the bottom surface are substantially parallel, and a second midplane is substantially equidistant between the top surface and the bottom surface. The first midplane and the second midplane are non-coextensive. The asymmetric whispering gallery mode resonator disk can further include a first chamfered edge between the top surface and the axial surface, and a second chamfered edge between the bottom surface and the axial surface. Moreover, the resonator device includes a first electrode on the top surface and a second electrode on the bottom surface.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 1, 2021
    Inventors: Ivan Grudinin, Vladimir Ilchenko, Lutfollah Maleki, Sergio Alvarez
  • Publication number: 20200015791
    Abstract: Urine analysis system that couples or integrates with a toilet. Wirelessly links to a computer, such as a user's mobile device to accept control inputs and report urine test results. Accepts user input to initiate testing and deploys a urine collector into the toilet bowl above the water to collect a urine sample. The collected urine sample is dispensed onto multiple regions of a test matrix that may perform many urine tests simultaneously. A single test matrix may include multiple types of tests, such as immunochromatography and colorimetric assays. An optical imaging system detects reaction of the urine with reagents integrated into the test matrix. Analysis of images may be performed locally or on a remote server. The system may store an inventory of test matrices to support daily testing for long durations, for example 6 months or more before refilling.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 16, 2020
    Applicant: BLOOM HEALTH, INC.
    Inventors: Matthew MCCORD, Jon CARDER, Sergio ALVAREZ, Jesus GONZALEZ
  • Patent number: 10383606
    Abstract: Urine analysis system that couples or integrates with a toilet. Wirelessly links to a computer, such as a user's mobile device to accept control inputs and report urine test results. Accepts user input to initiate testing and deploys a urine collector into the toilet bowl above the water to collect a urine sample. The collected urine sample is dispensed onto multiple regions of a test matrix that may perform many urine tests simultaneously. A single test matrix may include multiple types of tests, such as immunochromatography and colorimetric assays. An optical imaging system detects reaction of the urine with reagents integrated into the test matrix. Analysis of images may be performed locally or on a remote server. The system may store an inventory of test matrices to support daily testing for long durations, for example 6 months or more before refilling.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 20, 2019
    Assignee: BLOOM HEALTH, INC.
    Inventors: Matthew McCord, Jon Carder, Sergio Alvarez, Jesus Gonzalez