Patents by Inventor Hyung Suk Noh

Hyung Suk Noh 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).

  • Modified SLM scheme with low complexity for PAPR reduction of OFDM systems
    Patent number: 7929414
    Abstract: Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are probabilistically independent and have identical information; linearly combining the plurality of OFDM signal sequences by using complex numbers; and generating different OFDM signal sequences based on the linear combination. Accordingly, the number of phase sequences can be increased without almost increasing a computation amount of SLM.
    Type: Grant
    Filed: September 3, 2007
    Date of Patent: April 19, 2011
    Assignee: SNU R & DB Foundation
    Inventors: Jong-Seon No, Dong Joon Shin, Seok-Joong Heo, Hyung Suk Noh
  • MODIFIED SLM SCHEME WITH LOW COMPLEXITY FOR PAPR REDUCTION OF OFDM SYSTEMS
    Publication number: 20100110875
    Abstract: Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are probabilistically independent and have identical information; linearly combining the plurality of OFDM signal sequences by using complex numbers; and generating different OFDM signal sequences based on the linear combination. Accordingly, the number of phase sequences can be increased without almost increasing a computation amount of SLM.
    Type: Application
    Filed: September 3, 2007
    Publication date: May 6, 2010
    Applicant: SNU R & DB FOUNDATION
    Inventors: Jong-Seon No, Dong Joon Shin, Seok-Joong Heo, Hyung Suk Noh