Patents by Inventor Sameer Dinkar Vartak

Sameer Dinkar Vartak 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).

  • Fringe locking subsystem and methods of making and using the same
    Patent number: 8363224
    Abstract: A fringe locking subsystem for an optical sensing cavity is provided. The subsystem comprises one or more photo detectors that detect a reference signal and a cavity signal; a first amplifier that generates a calculated differential between the reference signal and the cavity signal; a lock-in amplifier that generates a modulation signal based on the calculated differential; and a controller that adjusts a distance within the cavity based on the modulation signal.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 29, 2013
    Assignee: General Electric Company
    Inventors: Sandip Maity, Sameer Dinkar Vartak, Umakant Damodar Rapol
  • SYSTEMS AND METHODS FOR DETECTION AND IMAGING OF TWO-DIMENSIONAL SAMPLE ARRAYS
    Publication number: 20120105852
    Abstract: A detection system for a two-dimensional (2D) array is provided. The detection system comprises an electromagnetic radiation source, a phase difference generator, a detection surface having a plurality of sample fields that can receive samples, and an imaging spectrometer configured to discriminate between two or more spatially separated points.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abhijit Vishwas Patil, Sandip Maity, Veera Venkata Lakshmi Rajesh Langoju, Anusha Rammohan, Sameer Dinkar Vartak, Umakant Damodar Rapol
  • FRINGE LOCKING SUBSYSTEM AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20110242542
    Abstract: A fringe locking subsystem for an optical sensing cavity is provided. The subsystem comprises one or more photo detectors that detect a reference signal and a cavity signal; a first amplifier that generates a calculated differential between the reference signal and the cavity signal; a lock-in amplifier that generates a modulation signal based on the calculated differential; and a controller that adjusts a distance within the cavity based on the modulation signal.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sandip Maity, Sameer Dinkar Vartak, Umakant Damodar Rapol
  • OPTICAL DETECTION SYSTEMS AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20110244588
    Abstract: An optical sensing device is provided. The device comprises a cavity defined by at least an anomalous reflective element having an anomalous reflection surface, and a non-absorptive element having a non-absorptive reflection surface disposed in a direction away from the anomalous reflection surface.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sandip Maity, Sameer Dinkar Vartak, Veena Besige Narayan Rao, Masako Yamada, Shankar Chandrasekaran, Abhijit Vishwas Patil, Ayan Banerjee, Umakant Damodar Rapol