Patents by Inventor Yi-Jan WANG

Yi-Jan WANG 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).

  • Circuitry and method for driving laser with temperature compensation
    Patent number: 9031108
    Abstract: A temperature-compensated laser driving circuit for driving a laser component is provided. The temperature-compensated laser driving circuit includes: a temperature compensation circuit, configured to generate a second current based on a first current and a temperature-independent current; and a modulation current generating circuit, configured to generate a modulation current based on the second current, and calibrate optical power output of the laser component based on the modulation current. The first current is proportional to the absolute temperature. The second current and the first current have a slope relative to the absolute temperature respectively, and the slope of the second current relative to the absolute temperature is larger than of the slope of the first current relative to the absolute temperature.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: May 12, 2015
    Assignee: VIA TECHNOLOGIES, INC.
    Inventors: Cheng-Ming Ying, Wei-Yu Wang, Yi-Jan Wang, Yen-Yu Chen
  • CIRCUITRY AND METHOD FOR DRIVING LASER WITH TEMPERATURE COMPENSATION
    Publication number: 20150043600
    Abstract: A temperature-compensated laser driving circuit for driving a laser component is provided. The temperature-compensated laser driving circuit includes: a temperature compensation circuit, configured to generate a second current based on a first current and a temperature-independent current; and a modulation current generating circuit, configured to generate a modulation current based on the second current, and calibrate optical power output of the laser component based on the modulation current. The first current is proportional to the absolute temperature. The second current and the first current have a slope relative to the absolute temperature respectively, and the slope of the second current relative to the absolute temperature is larger than of the slope of the first current relative to the absolute temperature.
    Type: Application
    Filed: July 23, 2014
    Publication date: February 12, 2015
    Inventors: Cheng-Ming YING, Wei-Yu WANG, Yi-Jan WANG, Yen-Yu CHEN