Patents by Inventor Thineshwaran G. Krishnan

Thineshwaran G. Krishnan 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).

  • Optical navigation system and method of estimating motion with optical lift detection
    Patent number: 9007305
    Abstract: An optical navigation system and method of estimating motion uses a plate with an aperture, a photodetector and an optical system for optical lift detection. The optical system is configured to direct an input light to a target surface through the aperture of the plate and to direct the input light reflected from the target surface and transmitted back through the aperture of the plate toward the photodetector to be detected by the photodetector for lift detection.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: April 14, 2015
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Yat Kheng Leong, Sai Mun Lee, Thineshwaran G. Krishnan
  • OPTICAL NAVIGATION SYSTEM AND METHOD OF ESTIMATING MOTION WITH OPTICAL LIFT DETECTION
    Publication number: 20110095984
    Abstract: An optical navigation system and method of estimating motion uses a plate with an aperture, a photodetector and an optical system for optical lift detection. The optical system is configured to direct an input light to a target surface through the aperture of the plate and to direct the input light reflected from the target surface and transmitted back through the aperture of the plate toward the photodetector to be detected by the photodetector for lift detection.
    Type: Application
    Filed: January 4, 2011
    Publication date: April 28, 2011
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Yat Kheng Leong, Sai Mun Lee, Thineshwaran G. Krishnan
  • Optical navigation system and method of estimating motion with optical lift detection
    Patent number: 7868281
    Abstract: An optical navigation system and method of estimating motion uses a plate with an aperture, a photodetector and an optical system for optical lift detection. The optical system is configured to direct an input light to a target surface through the aperture of the plate and to direct the input light reflected from the target surface and transmitted back through the aperture of the plate toward the photodetector to be detected by the photodetector for lift detection.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: January 11, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Yat Kheng Leong, Sai Mun Lee, Thineshwaran G. Krishnan
  • Optical navigation system and method of estimating motion with optical lift detection
    Publication number: 20080117412
    Abstract: An optical navigation system and method of estimating motion uses a plate with an aperture, a photodetector and an optical system for optical lift detection. The optical system is configured to direct an input light to a target surface through the aperture of the plate and to direct the input light reflected from the target surface and transmitted back through the aperture of the plate toward the photodetector to be detected by the photodetector for lift detection.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 22, 2008
    Inventors: Yat Kheng Leong, Sai Mun Lee, Thineshwaran G. Krishnan