Patents by Inventor Zigurts Krishna MAJUMDAR

Zigurts Krishna MAJUMDAR 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).

  • SYSTEM FOR EARLY DETECTION OF PLANT DISEASE
    Publication number: 20220099578
    Abstract: An apparatus for detecting a plant health status is described. The apparatus includes a light source positioned relative to the plant and a detector positioned relative to the plant. The light source is configured to emit a white light or an ultraviolet light. The ultraviolet (UV) light corresponds to UV-A and has a wavelength in the range of 340 nanometers (run) to 400 nm. The detector is configured to receive evaluation light. The evaluation light is related to the emitted light and corresponds to a health status of the plant.
    Type: Application
    Filed: January 28, 2020
    Publication date: March 31, 2022
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Zigurts Krishna Majumdar, Jaimin Patel, Andrew Bierman, Mark S. Rea
  • Mobile phone hyperspectral imager with single-frame spatial, spectral and polarization information
    Patent number: 9551613
    Abstract: A portable spectroscopic device for acquiring single-frame spatial, spectral, and polarization information of an object. The device includes a modular dispersion element assembly that is coupled to a mobile computing device and disperses light into a plurality of different wavelengths. The mobile computing device includes a sensor and is configured to receive and analyze the plurality of wavelengths. The mobile computing device is also configured to perform automatic calibrations to determine the absolute wavelength axis and make stray-light corrections with minimal user intervention, thus making it amenable for untrained users not familiar with the state of the art. The mobile computing device is also configured to extend dynamic range.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: January 24, 2017
    Assignee: BOOZ, ALLEN & HAMILTON
    Inventors: Zigurts Krishna Majumdar, Allan O. Steinhardt, Lyla Joanna Fischer
  • MOBILE PHONE HYPERSPECTRAL IMAGER WITH SINGLE-FRAME SPATIAL, SPECTRAL AND POLARIZATION INFORMATION
    Publication number: 20120081695
    Abstract: A portable spectroscopic device for acquiring single-frame spatial, spectral, and polarization information of an object. The device includes a modular dispersion element assembly that is coupled to a mobile computing device and disperses light into a plurality of different wavelengths. The mobile computing device includes a sensor and is configured to receive and analyze the plurality of wavelengths. The mobile computing device is also configured to perform automatic calibrations to determine the absolute wavelength axis and make stray-light corrections with minimal user intervention, thus making it amenable for untrained users not familiar with the state of the art. The mobile computing device is also configured to extend dynamic range.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 5, 2012
    Applicant: BOOZ, ALLEN & HAMILTON
    Inventors: Zigurts Krishna MAJUMDAR, Allan O. STEINHARDT, Joanna FISCHER