Patents by Inventor Duc Hongle Ngo

Duc Hongle Ngo 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: 11675351
    Abstract: An autonomous mobile device (AMD) builds up electrostatic charges from moving and generates heat from the operation of internal components. In addition to possible user discomfort, electrostatic discharges may damage sensors and electronics. Electrostatic charges are dissipated from the AMD using an electrostatic dissipation structure and conductive wheels. A conductive path between a chassis ground, the electrostatic dissipation structure, and the conductive wheels improves the dissipation of electrostatic charges. Electrostatic charges are also dissipated from components by mounting the components using conductive materials. Sensors may be affixed to a support structure that is affected by thermal expansion. Thermal expansion may distort precise positioning of sensors, reducing accuracy of sensor data. An elastomeric foam may be used to mount sensors to a support structure, allowing for thermal expansion without distorting the positioning of the sensors.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: June 13, 2023
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Christopher Wells Fitzhugh, Li Huang, Catherine May Farmer, Duc Hongle Ngo, Eric Foxlin, Gregory Turner Witmer, Babak Hashemizadeh, Marcel Colman Eric Stieber
  • Patent number: 8805458
    Abstract: A battery protection mechanism is provided within an electronic device. A door has a latch which fits into a latch retention-release mechanism in the base of the device. A spring under tension within a retention-release mechanism presses against the latch when the device is in a closed configuration. A foot attached to a button in the base of the device urges the door out of position upon depression or activation of the button.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 12, 2014
    Assignee: BlackBerry Limited
    Inventors: Patrick Clement Strittmatter, Paul Daniel Everest, Devin Bertrum Pauley, Thomas Kevin Swindle, Duc Hongle Ngo
  • Publication number: 20120281366
    Abstract: A battery protection mechanism is provided within an electronic device. A door has a latch which fits into a latch retention-release mechanism in the base of the device. A spring under tension within a retention-release mechanism presses against the latch when the device is in a closed configuration. A foot attached to a button in the base of the device urges the door out of position upon depression or activation of the button.
    Type: Application
    Filed: February 14, 2012
    Publication date: November 8, 2012
    Inventors: Patrick Clement Strittmatter, Paul Daniel Everest, Devin Bertrum Pauley, Thomas Kevin Swindle, Duc Hongle Ngo