Patents by Inventor James Xinping He

James Xinping He 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: 7541596
    Abstract: A system and method for applying a layer of material in the image sensor fabrication process in order to increase the absorption of specific range light spectrum by the image sensor is described. The mechanism adopted is by converting light rays from higher energy range (shorter wavelength) to lower energy range (longer wavelength) such that the light absorption by the image sensor can be increased.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 2, 2009
    Assignee: OmniVision Technologies, Inc.
    Inventors: James Xinping He, Guannho George Tsau, Ching Hu
  • Publication number: 20090086074
    Abstract: A camera solution includes an image sensor and an image processing and control system. At least two different operating modes are supported, with one of the modes having a higher dynamic range. Control of the dynamic range is provided at the system level. The system supports statically or dynamically selecting an operating mode that determines the dynamic range of a camera. In one implementation, the system supports the use of either a conventional image sensor that does not natively support a high dynamic range or a dual-mode image sensor.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Hongjun LI, James Xinping HE, Henry Hongli YANG
  • Publication number: 20080174685
    Abstract: A CMOS image sensor having blooming reduction mechanisms is disclosed. The image sensor can include a plurality of pixels arranged in rows and a timing and control circuit in electrical communication with the plurality of pixels. The timing and control circuit includes a readout module configured for outputting a first row of pixels exposed for a first exposure period, outputting a second row of pixels exposed for the first exposure period after outputting the first row of pixels, and thereafter outputting a third row of pixels exposed for a second exposure period different than the first exposure period, the third row of pixels being between the first and second rows of pixels.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Applicant: OmniVision Technologies, Inc.
    Inventors: Jizhang Shan, James Xinping He, Henry Yang
  • Publication number: 20080042066
    Abstract: A system and method for applying a layer of material in the image sensor fabrication process in order to increase the absorption of specific range light spectrum by the image sensor is described. The mechanism adopted is by converting light rays from higher energy range (shorter wavelength) to lower energy range (longer wavelength) such that the light absorption by the image sensor can be increased.
    Type: Application
    Filed: June 28, 2007
    Publication date: February 21, 2008
    Inventors: James Xinping He, Guannho George Tsau, Ching Hu