Patents by Inventor Jun Chul Roh

Jun Chul Roh 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).

  • Apparatus and method for multilevel coding (MLC) with binary alphabet polar codes
    Patent number: 10911062
    Abstract: A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: February 2, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Corina Ioana Ionita, Jun Chul Roh, Mohamed F. Mansour, Srinath Hosur
  • APPARATUS AND METHOD FOR MULTILEVEL CODING (MLC) WITH BINARY ALPHABET POLAR CODES
    Publication number: 20200021307
    Abstract: A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Corina Ioana Ionita, Jun Chul Roh, Mohamed F. Mansour, Srinath Hosur