Patents by Inventor Thankappan Santhanakrishnan

Thankappan Santhanakrishnan 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 and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a detector
    Patent number: 8643846
    Abstract: The present invention provides for a novel method and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a photo detector. The monitoring method and apparatus disclosed herein comprises of a (any) continuous wave coherent collimated beam of light (or a laser) falling on an (any) optically reflective coating on the surface of the body with inherent vibrations, or with manifest vibrations induced from another source through any medium where the said light is reflected, and then received on the surface of a (any) photo detector in such a way that the received light falls partially on the active sensing area, and partially on the outer perimeter of the active sensing area.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: February 4, 2014
    Assignee: Defence Research and Development Organisation
    Inventors: Thankappan Santhanakrishnan, Tatavarti Venkata Sreerama Narasimha Rao
  • METHOD AND APPARATUS FOR THE SIMULTANEOUS GENERATION AND DETECTION OF OPTICAL DIFFRACTION INTERFERENCE PATTERN ON A DETECTOR
    Publication number: 20100321698
    Abstract: The present invention provides for a novel method and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a photo detector. The monitoring method and apparatus disclosed herein comprises of a (any) continuous wave coherent collimated beam of light (or a laser) falling on an (any) optically reflective coating on the surface of the body with inherent vibrations, or with manifest vibrations induced from another source through any medium where the said light is reflected, and then received on the surface of a (any) photo detector in such a way that the received light falls partially on the active sensing area, and partially on the outer perimeter of the active sensing area.
    Type: Application
    Filed: July 10, 2008
    Publication date: December 23, 2010
    Inventors: Thankappan Santhanakrishnan, Tatavarti Venkata Sreerama Narasimha Rao