Patents by Inventor Ivan Kirianov

Ivan Kirianov 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 device for measuring the current signal-to-noise ratio when decoding LDPC codes
    Patent number: 9793928
    Abstract: A method for measuring a signal-to-noise ratio when decoding Low Density Parity Check (LDPC) codes is provided. The method includes receiving from an input of a demodulator an input code word with “strong” or “weak” solutions, decoding the input code word in a LDPC decoder using a predetermined dependence of a mean number of iterations on the signal-to-noise ratio, recording a number of iterations performed during the decoding of the input code word, averaging derived values of the number of iterations for a specified time interval, estimating a signal-to-noise ratio based on averaged derived values of the number of iterations and based on the predetermined dependence of the mean number of iterations on the signal-to-noise ratio, and generating an output decoded code word.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 17, 2017
    Assignee: Topcon Positioning Systems, Inc.
    Inventors: Nikolay Vazhenin, Andrey Veitsel, Ivan Kirianov
  • METHOD AND DEVICE FOR MEASURING THE CURRENT SIGNAL-TO-NOISE RATIO WHEN DECODING LDPC CODES
    Publication number: 20170041027
    Abstract: A method for measuring a signal-to-noise ratio when decoding Low Density Parity Check (LDPC) codes is provided. The method includes receiving from an input of a demodulator an input code word with “strong” or “weak” solutions, decoding the input code word in a LDPC decoder using a predetermined dependence of a mean number of iterations on the signal-to-noise ratio, recording a number of iterations performed during the decoding of the input code word, averaging derived values of the number of iterations for a specified time interval, estimating a signal-to-noise ratio based on averaged derived values of the number of iterations and based on the predetermined dependence of the mean number of iterations on the signal-to-noise ratio, and generating an output decoded code word.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 9, 2017
    Applicant: Topcon Positioning Systems, Inc.
    Inventors: Nikolay Vazhenin, Andrey Veitsel, Ivan Kirianov
  • Method and device for measuring the current signal-to-noise ratio when decoding LDPC codes
    Patent number: 9503219
    Abstract: A method for measuring a signal-to-noise ratio when decoding Low Density Parity Check (LDPC) codes is provided. The method includes receiving from an input of a demodulator an input code word with “strong” or “weak” solutions, decoding the input code word in a LDPC decoder using a predetermined dependence of a mean number of iterations on the signal-to-noise ratio, recording a number of iterations performed during the decoding of the input code word, averaging derived values of the number of iterations for a specified time interval, estimating a signal-to-noise ratio based on averaged derived values of the number of iterations and based on the predetermined dependence of the mean number of iterations on the signal-to-noise ratio, and generating an output decoded code word.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: November 22, 2016
    Assignee: Topcon Positioning Systems, Inc.
    Inventors: Nikolay Vazhenin, Andrey Veitsel, Ivan Kirianov
  • METHOD AND DEVICE FOR MEASURING THE CURRENT SIGNAL-TO-NOISE RATIO WHEN DECODING LDPC CODES
    Publication number: 20150117505
    Abstract: A method for measuring a signal-to-noise ratio when decoding Low Density Parity Check (LDPC) codes is provided. The method includes receiving from an input of a demodulator an input code word with “strong” or “weak” solutions, decoding the input code word in a LDPC decoder using a predetermined dependence of a mean number of iterations on the signal-to-noise ratio, recording a number of iterations performed during the decoding of the input code word, averaging derived values of the number of iterations for a specified time interval, estimating a signal-to-noise ratio based on averaged derived values of the number of iterations and based on the predetermined dependence of the mean number of iterations on the signal-to-noise ratio, and generating an output decoded code word.
    Type: Application
    Filed: July 14, 2014
    Publication date: April 30, 2015
    Applicant: Topcon Positioning Systems, Inc.
    Inventors: Nikolay Vazhenin, Andrey Veitsel, Ivan Kirianov