Patents by Inventor Shiban Kishan Kak

Shiban Kishan Kak 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 and method for digital transmission and modulation of conjugate pulse position
    Patent number: 7539245
    Abstract: The invention relates to a communication system comprising a modulator, encoder, decoder, demodulator, and a data input source, which employs an improved modulation technique by effectively utilizing the conjugate signal space in Digital Pulse Position Modulation (DPPM) format. This technique utilizes multiple the DPPM formats, whereby M data bits are conveyed by splitting them into sets of k bits. The split data are encoded to have forward and conjugate pulse positions for transmission over a transmission channel, which are discriminated and combined into a M-bit digital output. The system and method achieve superior characteristics in terms of data rate, channel utilization and coding efficiency.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: May 26, 2009
    Assignee: General Electric Company
    Inventors: Shubhra Venna, Shiban Kishan Kak
  • System and method for digital transmission and modulation of conjugate pulse position
    Publication number: 20040136454
    Abstract: The invention relates to a communication system comprising a modulator, encoder, decoder, demodulator, and a data input source, which employs an improved modulation technique by effectively utilizing the conjugate signal space in Digital Pulse Position Modulation (DPPM) format. This technique utilizes multiple the DPPM formats, whereby M data bits are conveyed by splitting them into sets of k bits. The split data are encoded to have forward and conjugate pulse positions for transmission over a transmission channel, which are discriminated and combined into a M-bit digital output. The system and method achieve superior characteristics in terms of data rate, channel utilization and coding efficiency.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 15, 2004
    Applicant: General Electric Company
    Inventors: Shubhra Venna, Shiban Kishan Kak