Patents by Inventor Yuanzhe Li

Yuanzhe Li 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).

  • Method for driving optical transmitter
    Patent number: 8345721
    Abstract: A method to control an LD (laser diode) is disclosed. The method compares the operating temperature of the LD with a transition temperature. When the former temperature exceeds the latter, the modulation current is set based on the bias current, which is independently determined by the APC loop. On the other hand, the operating temperature is less than the transition temperature; the modulation current is determined by the operating temperature.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: January 1, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Moriyasu Ichino, Hiroto Ishibashi, Toru Ukai, Yuanzhe Li
  • METHOD FOR DRIVING OPTICAL TRANSMITTER
    Publication number: 20100322271
    Abstract: A method to control an LD (laser diode) is disclosed. The method compares the operating temperature of the LD with a transition temperature. When the former temperature exceeds the latter, the modulation current is set based on the bias current, which is independently determined by the APC loop. On the other hand, the operating temperature is less than the transition temperature; the modulation current is determined by the operating temperature.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 23, 2010
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Moriyasu ICHINO, Hiroto Ishibashi, Toru Ukai, Yuanzhe Li