Patents by Inventor Jenchao J. Lin

Jenchao J. Lin 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).

  • Closed loop laser control
    Patent number: 8249120
    Abstract: The radiance of a laser is a function of drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device adjusts laser drive parameters using a gradient descent operation. The device parameters may be adjusted iteratively and periodically. The period may be shorter or longer than a scan line in a video image.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: August 21, 2012
    Assignee: Microvision, Inc.
    Inventors: Margaret K. Brown, Joel D. Hopkins, Jenchao J. Lin, Lifford McLauchlan
  • Closed Loop Laser Control
    Publication number: 20120176549
    Abstract: The radiance of a laser is a function of drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device adjusts laser drive parameters using a gradient descent operation. The device parameters may be adjusted iteratively and periodically. The period may be shorter or longer than a scan line in a video image.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 12, 2012
    Applicant: MICROVISION, INC.
    Inventors: Margaret K. Brown, Joel D. Hopkins, Jenchao J. Lin, Lifford McLauchlan
  • Closed loop laser control
    Patent number: 8165179
    Abstract: The radiance of a laser is a function of drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device adjusts laser drive parameters using a gradient descent operation. The device parameters may be adjusted iteratively and periodically. The period may be shorter or longer than a scan line in a video image.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: April 24, 2012
    Assignee: Microvision, Inc.
    Inventors: Margaret K. Brown, Joel D. Hopkins, Jenchao J. Lin, Lifford McLauchlin
  • Closed Loop Laser Control
    Publication number: 20100156863
    Abstract: The radiance of a laser is a function of drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device adjusts laser drive parameters using a gradient descent operation. The device parameters may be adjusted iteratively and periodically. The period may be shorter or longer than a scan line in a video image.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Applicant: Microvision, Inc.
    Inventors: Margaret K. Brown, Joel D. Hopkins, Jenchao J. Lin, Lifford McLauchlan