Patents by Inventor David Christopher Jansson

David Christopher Jansson 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).

  • LED driver voltage accounting for temperature estimate
    Patent number: 11935461
    Abstract: A method for control of a pixel array based on a temperature estimate is provided. A method includes sampling an anode voltage of each LED of a plurality of pixels resulting in sampled voltages, determining an average voltage based on the sample voltages, and determining a total voltage to provide to the pixels based on the average voltage and voltage data from a memory coupled to the controller, the voltage data including one or more of a 3-sigma value, a driver headroom value, a resistance value, or a k-factor value.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: March 19, 2024
    Assignee: Lumileds LLC
    Inventors: Ronald Johannes Bonne, Claire Yue Gao, David Christopher Jansson, Zhi Hua Song
  • LED DRIVER VOLTAGE ACCOUNTING FOR TEMPERATURE ESTIMATE
    Publication number: 20230186835
    Abstract: A method for control of a pixel array based on a temperature estimate is provided. A method includes sampling an anode voltage of each LED of a plurality of pixels resulting in sampled voltages, determining an average voltage based on the sample voltages, and determining a total voltage to provide to the pixels based on the average voltage and voltage data from a memory coupled to the controller, the voltage data including one or more of a 3-sigma value, a driver headroom value, a resistance value, or a k-factor value.
    Type: Application
    Filed: November 22, 2022
    Publication date: June 15, 2023
    Inventors: Ronald Johannes Bonne, Claire Yue Gao, David Christopher Jansson, Zhi Hua Song