Patents by Inventor Kevin Ha

Kevin Ha 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: 11145233
    Abstract: Implementations for masking for mitigating visual contrast of a camera region of a display are described. Generally, the described techniques provide ways for mitigating visual differences between a camera region and other regions of a display. For instance, visual masks can be generated and displayed overlapping and/or peripherally to a camera region of a display to smooth a visual transition between the camera region and other regions of the display. The masks, for example, are displayed in regions of the display that surround the camera region. Further, color attributes of the masks can be configured to provide a gradual visual transition from color output at the camera region to color output at other regions of the display.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: October 12, 2021
    Assignee: Motorola Mobility LLC
    Inventor: Kevin Ha Dao
  • Patent number: 10729906
    Abstract: A circuit includes first and second current control sub-circuits connected in series between a DC supply voltage node and a reference voltage node and third and fourth current control sub-circuits connected in series between the DC supply voltage node and the reference voltage node. The circuit also includes a DC/DC converter with a first input terminal coupled to the first load node between the first and second current control sub-circuits, a second input terminal coupled to a second load node between the third and fourth current control sub-circuits, a first output terminal, and a second output terminal. The circuit further includes output electrodes, a routing sub-circuit for selectively coupling the output electrodes to the output terminals, and a controller configured for operating the routing sub-circuit and the current control sub-circuits to cause the DC/DC converter to supply biphasic pulses for at least one of the pairs of output electrodes.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 4, 2020
    Assignee: Vanderbilt University
    Inventors: Michael Goldfarb, Kevin Ha, Don Truex
  • Patent number: 10517745
    Abstract: Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 31, 2019
    Assignee: Vanderbilt University
    Inventors: Michael Goldfarb, Huseyin Atakan Varol, Kevin Ha
  • Publication number: 20170333222
    Abstract: Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 23, 2017
    Inventors: Michael GOLDFARB, Huseyin Atakan VAROL, Kevin HA
  • Publication number: 20170095668
    Abstract: A circuit includes first and second current control sub-circuits connected in series between a DC supply voltage node and a reference voltage node and third and fourth current control sub-circuits connected in series between the DC supply voltage node and the reference voltage node. The circuit also includes a DC/DC converter with a first input terminal coupled to the first load node between the first and second current control sub-circuits, a second input terminal coupled to a second load node between the third and fourth current control sub-circuits, a first output terminal, and a second output terminal. The circuit further includes output electrodes, a routing sub-circuit for selectively coupling the output electrodes to the output terminals, and a controller configured for operating the routing sub-circuit and the current control sub-circuits to cause the DC/DC converter to supply biphasic pulses for at least one of the pairs of output electrodes.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventors: Michael GOLDFARB, Kevin HA, Don TRUEX
  • Publication number: 20140100667
    Abstract: Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Inventors: Michael Goldfarb, Huseyin Atakan Varol, Kevin Ha
  • Patent number: 8623098
    Abstract: Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: January 7, 2014
    Assignee: Vanderbilt University
    Inventors: Michael Goldfarb, Huseyin Atakan Varol, Kevin Ha
  • Publication number: 20120004736
    Abstract: Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.
    Type: Application
    Filed: June 1, 2011
    Publication date: January 5, 2012
    Applicant: Vanderbilt University
    Inventors: Michael Goldfarb, Huseyin Atakan Varol, Kevin Ha