Patents by Inventor Raj R. Nadakuditi

Raj R. Nadakuditi 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).

  • Methods for increasing transmission through scattering random media
    Patent number: 9207171
    Abstract: The method, system, and computer-readable medium increase transmission of waves through a highly scattering random medium. Transmission is increased by iteratively refining wavefronts using measurements of the backscatter wavefronts resulting from transmission of waves into the medium. The process of double phase conjugation by time-reversing a wavefront, transmitting the time-reversed wavefront into the medium, and time-reversing the reversing backscatter wavefront is leveraged to implement the method in a physical system using a phase conjugate mirror. In an embodiment, transmission may be increased by phase-only modulation of the wavefronts. In an embodiment, the invention may be used to focus transmission through the medium to a location opposite the wave source.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: December 8, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Raj R. Nadakuditi, Stephen C. Rand, Eric Michielssen, Curtis Jin
  • Methods for Increasing Transmission Through Scattering Random Media
    Publication number: 20150285739
    Abstract: The method, system, and computer-readable medium increase transmission of waves through a highly scattering random medium. Transmission is increased by iteratively refining wavefronts using measurements of the backscatter wavefronts resulting from transmission of waves into the medium. The process of double phase conjugation by time-reversing a wavefront, transmitting the time-reversed wavefront into the medium, and time-reversing the reversing backscatter wavefront is leveraged to implement the method in a physical system using a phase conjugate mirror. In an embodiment, transmission may be increased by phase-only modulation of the wavefronts. In an embodiment, the invention may be used to focus transmission through the medium to a location opposite the wave source.
    Type: Application
    Filed: February 12, 2015
    Publication date: October 8, 2015
    Inventors: Raj R. Nadakuditi, Stephen C. Rand, Eric Michielssen, Curtis Jin