Patents by Inventor Chau Van Ho

Chau Van Ho 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).

  • Publication number: 20240094788
    Abstract: A device comprising a display and a display controller. The display comprises a first display portion and a second display portion. The display controller is configured to assess a temperature condition of a surface of the first display portion; and responsive to the temperature condition, to initiate a switching of display content from one of the display portions to the other display portion.
    Type: Application
    Filed: September 17, 2020
    Publication date: March 21, 2024
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Zenghui ZHAO, Chau Van HO
  • Patent number: 11474577
    Abstract: Cooling of an electronic device that includes a first portion and a second portion is provided. The first portion and the second portion are rotatable relative to each other. A first sensor measures a first temperature at a first location within or on the electronic device continuously or intermittently. A second sensor measures a second temperature at a second location within or on the electronic device continuously or intermittently. A processor identifies a first state of the electronic device or a second state of the electronic device. The processor controls operation of the electronic device based on the first measured temperature and the second measured temperature when the electronic device is in the identified first state and controls the operation of the electronic device based on the first measured temperatures but not based on the second measured temperatures when the electronic device is in the identified second state.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 18, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Bo Dan, Brandon Earl Gary, Gary Russell McClary
  • Patent number: 11263967
    Abstract: OLED display color output may vary substantially as a function of display temperature, which changes over time. Luminance of each of the pixels is defined by the current flowing therethrough, which is a function of the applied voltage and resistivity of the pixels. Temperature affects the resistivity of the pixels and thus the current flowing therethrough if voltage is held constant. The temperature response of red, green, and blue pixels differs, particularly at low applied voltage levels. As a result, the relative luminance of red, green, blue may vary with temperature changes, which may yield an undesirable overall color variance. The presently disclosed systems and methods dynamically adjust driving voltage to maintain color quality within a desired specification, while also reducing (or in some implementations, minimizing) power consumption of the OLED display.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: March 1, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gregory Nielsen, Chau Van Ho, Mika Juhani Rintamaeki, Samu Matias Kallio
  • Publication number: 20210333851
    Abstract: Thermal management devices and systems, and corresponding methods of cooling an electronic device are described herein. A method for cooling an electronic device that includes a housing and a vent in the housing includes monitoring, by a sensor, an operating condition of the electronic device. The vent is opened or closed based on the monitored condition of the electronic device.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Bo DAN, James David WAHL, Chau Van HO
  • Patent number: 11061451
    Abstract: Thermal management devices and systems, and corresponding methods of cooling an electronic device are described herein. A method for cooling an electronic device that includes a housing and a vent in the housing includes monitoring, by a sensor, an operating condition of the electronic device. The vent is opened or closed based on the monitored condition of the electronic device.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 13, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bo Dan, James David Wahl, Chau Van Ho
  • Patent number: 10996722
    Abstract: This document relates to providing a thermal management system for a device. One example determines temperature readings associated with one or more components of the device, and comparing the temperature readings to optimal operating temperatures. This example can selectively couple or decouple heat-dissipating elements based at least on the temperature readings associated with the one or more components of the device in order to reach the optimal operating temperatures.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 4, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Timothy M. Sullivan, Avinash Raghuram
  • Publication number: 20200387202
    Abstract: This document relates to providing a thermal management system for a device. One example determines temperature readings associated with one or more components of the device, and comparing the temperature readings to optimal operating temperatures. This example can selectively couple or decouple heat-dissipating elements based at least on the temperature readings associated with the one or more components of the device in order to reach the optimal operating temperatures.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 10, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Timothy M. Sullivan, Avinash Raghuram
  • Patent number: 10852791
    Abstract: Cooling of an electronic device is described herein. A sensor located at a first position determines a temperature at the first position. A processor identifies a fan speed of a fan positioned within the electronic device. The processor identifies a correlation between at least the determined temperature at the first position and the identified fan speed of the fan, and a temperature at a second position. The processor calculates an expected temperature at the second position using the identified correlation based on the determined temperature at the first position and the identified fan speed of the fan. The processor compares the calculated expected temperature at the second position to a predetermined temperature for the second position. The processor controls, based on the comparison, at least one component of the electronic device when the calculated expected temperature at the second position is greater than the predetermined temperature for the second position.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: December 1, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gregory Allen Nielsen, Chau Van Ho, Jason Marlan Pursel
  • Publication number: 20200319686
    Abstract: Cooling of an electronic device that includes a first portion and a second portion is provided. The first portion and the second portion are rotatable relative to each other. A first sensor measures a first temperature at a first location within or on the electronic device continuously or intermittently. A second sensor measures a second temperature at a second location within or on the electronic device continuously or intermittently. A processor identifies a first state of the electronic device or a second state of the electronic device. The processor controls operation of the electronic device based on the first measured temperature and the second measured temperature when the electronic device is in the identified first state and controls the operation of the electronic device based on the first measured temperatures but not based on the second measured temperatures when the electronic device is in the identified second state.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Chau Van HO, Bo DAN, Brandon Earl GARY, Gary Russell MCCLARY
  • Patent number: 10754398
    Abstract: Cooling of a computing device is described herein. The computing device includes a plurality of fans, a plurality of sensors, and a processor in communication with the plurality of fans and the plurality of sensors. Each sensor of the plurality of sensors is associated with at least one fan of the plurality of fans and is operable to determine a temperature. The processor is configured to determine, for each sensor of the plurality of sensors, a difference between the determined temperature and a predetermined temperature corresponding to the sensor. The processor is also configured to compared the determined differences. The processor is configured to increase a speed of at least a first fan of the plurality of fans based on the comparison, and determine which fan of the plurality of fans to decrease fan speed based on the increased speed of the first fan.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 25, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Bo Dan, Spencer B. Eggert
  • Patent number: 10725510
    Abstract: Cooling of an electronic device that includes a first portion and a second portion is provided. The first portion and the second portion are rotatable relative to each other. A first sensor measures a first temperature at a first location within or on the electronic device continuously or intermittently. A second sensor measures a second temperature at a second location within or on the electronic device continuously or intermittently. A processor identifies a first state of the electronic device or a second state of the electronic device. The processor controls operation of the electronic device based on the first measured temperature and the second measured temperature when the electronic device is in the identified first state and controls the operation of the electronic device based on the first measured temperatures but not based on the second measured temperatures when the electronic device is in the identified second state.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: July 28, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Bo Dan, Brandon Earl Gary, Gary Russell McClary
  • Patent number: 10678314
    Abstract: Optimized charging of a battery of a computing device is provided. The computing device includes a dynamic phase change device. The dynamic phase change device includes a wick structure with a valve. The valve is operable to regulate a working fluid of the dynamic phase change device based on a position of the valve. The computing device also includes a battery physically connected to and in thermal communication with the dynamic phase change device, and a sensor operable to determine a temperature of the battery. The computing device includes a first heat generating component physically and thermally connected to the dynamic phase change device. The first heat generating component or a second heat generating component is configured to compare the determined temperature to a predetermined temperature and control the valve based on the comparison.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 9, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Lawrence David Azzano, David Otto Whitt, III, Andrew Douglas Delano, Lincoln Ghioni
  • Publication number: 20200090588
    Abstract: OLED display color output may vary substantially as a function of display temperature, which changes over time. Luminance of each of the pixels is defined by the current flowing therethrough, which is a function of the applied voltage and resistivity of the pixels. Temperature affects the resistivity of the pixels and thus the current flowing therethrough if voltage is held constant. The temperature response of red, green, and blue pixels differs, particularly at low applied voltage levels. As a result, the relative luminance of red, green, blue may vary with temperature changes, which may yield an undesirable overall color variance. The presently disclosed systems and methods dynamically adjust driving voltage to maintain color quality within a desired specification, while also reducing (or in some implementations, minimizing) power consumption of the OLED display.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 19, 2020
    Inventors: Gregory NIELSEN, Chau Van HO, Mika Juhani RINTAMAEKI, Samu Matias KALLIO
  • Patent number: 10551881
    Abstract: The disclosed technology includes a thermal management hinge connecting at least two hinged components of a computing device. The thermal management hinge has at least two different thermal orientations for managing thermal conditions within each of the hinged components. For example, the thermal management hinge may have a thermally conductive orientation and the thermally insulating orientation.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: February 4, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Shalini Majumdar, Bo Dan, Bharath Nagendran
  • Publication number: 20200033920
    Abstract: Cooling of an electronic device is described herein. A sensor located at a first position determines a temperature at the first position. A processor identifies a fan speed of a fan positioned within the electronic device. The processor identifies a correlation between at least the determined temperature at the first position and the identified fan speed of the fan, and a temperature at a second position. The processor calculates an expected temperature at the second position using the identified correlation based on the determined temperature at the first position and the identified fan speed of the fan. The processor compares the calculated expected temperature at the second position to a predetermined temperature for the second position. The processor controls, based on the comparison, at least one component of the electronic device when the calculated expected temperature at the second position is greater than the predetermined temperature for the second position.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 30, 2020
    Inventors: Gregory Allen Nielsen, Chau Van Ho, Jason Marlan Pursel
  • Publication number: 20190346895
    Abstract: Optimized charging of a battery of a computing device is provided. The computing device includes a dynamic phase change device. The dynamic phase change device includes a wick structure with a valve. The valve is operable to regulate a working fluid of the dynamic phase change device based on a position of the valve. The computing device also includes a battery physically connected to and in thermal communication with the dynamic phase change device, and a sensor operable to determine a temperature of the battery. The computing device includes a first heat generating component physically and thermally connected to the dynamic phase change device. The first heat generating component or a second heat generating component is configured to compare the determined temperature to a predetermined temperature and control the valve based on the comparison.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 14, 2019
    Inventors: Chau Van Ho, Lawrence David Azzano, David Otto Whitt, III, Andrew Douglas Delano, Lincoln Ghioni
  • Publication number: 20190286200
    Abstract: Cooling of an electronic device that includes a first portion and a second portion is provided. The first portion and the second portion are rotatable relative to each other. A first sensor measures a first temperature at a first location within or on the electronic device continuously or intermittently. A second sensor measures a second temperature at a second location within or on the electronic device continuously or intermittently. A processor identifies a first state of the electronic device or a second state of the electronic device. The processor controls operation of the electronic device based on the first measured temperature and the second measured temperature when the electronic device is in the identified first state and controls the operation of the electronic device based on the first measured temperatures but not based on the second measured temperatures when the electronic device is in the identified second state.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 19, 2019
    Inventors: Chau Van Ho, Bo Dan, Brandon Earl Gary, Gary Russell McClary
  • Patent number: 10371312
    Abstract: Techniques for selectively rotatable feet for an apparatus are described. According to various implementations, an apparatus includes feet on its base that cushion the apparatus on an adjacent surface, such as a desk, a table, and a floor. The feet are rounded (e.g., spherical) and can rotate relative to the base to enable the apparatus to be moved on an adjacent surface. To prevent unwanted movement during a typical usage, the apparatus includes brakes that engage with the feet to prevent rotation. The brakes, however, can be selectively disengaged from different feet to enable different types of movement of the apparatus, such as rotational and translational movement.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 6, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Shalini Joshi Majumdar, Chau Van Ho, Bo Dan
  • Patent number: 10175731
    Abstract: Cooling of at least two heat generating electronic components of a computing device is described herein. The computing device includes the at least two heat generating electronic components. The at least two heat generating electronic components includes a first heat generating electronic component and a second heat generating electronic component. The first heat generating electronic component and the second heat generating electronic component are in thermal communication. The computing device also includes a first sensor operable to measure a first temperature. The first temperature is associated with the first heat generating electronic component.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: January 8, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chau Van Ho, Bo Dan, Spencer Eggert, Greg Nielsen, Matthew Gen
  • Publication number: 20190004576
    Abstract: Computing devices, thermal management devices, and corresponding use methods are described herein. A computing device includes a housing, an electronic component supported by the housing, and a heat spreader physically connected to the electronic component. The heat spreader includes an adjustable part that is adjustable between a first state and a second state. Heat generated by the electronic component flows through the adjustable part when the adjustable part is in the first state, and the adjustable part is operable to redirect at least a portion of the heat when the adjustable part is in the second state.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventors: Chau Van Ho, David Otto Whitt, III, Andrew Douglas Delano, Bharath Nagendran