Patents by Inventor Hyun-Gu Hwang

Hyun-Gu Hwang 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).

  • Auto gain control method in digital communication system
    Patent number: 8391428
    Abstract: Provided is an auto gain control method in a digital communication system. The auto gain control method checks a distribution of a signal and a distribution of a signal envelope during a regular check interval, and determines a state of a current gain value from the distribution of the signal and the distribution of the signal envelope which are obtained through the checking of the distribution. The auto gain control method controls a gain value for auto gain control according to the determined state of the current gain value.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: March 5, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Gu Hwang, Hyeong Jun Park, Hee Sang Chung
  • Apparatus and method for detecting advanced GCL sequence in wireless communication system
    Patent number: 7830971
    Abstract: An apparatus and method for detecting a GCL sequence using a magnitude and a sign of a real part of a I/FDFT output except an imaginary part in a wireless communication system. The apparatus includes: a modified inverse/forward discrete fourier transform (I/FDFT) processing unit for enabling that the GCL sequence class u is detected with only a real part; a real value selecting unit for selecting real parts from the output of the I/FDFT processing unit; and a maximum value detecting unit for detecting a maximum value among magnitudes of the selected real parts having a positive sign from the real value selecting unit.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: November 9, 2010
    Assignees: Electronics and Telecommunications Research Institute, Samsung Electronics Co., Ltd.
    Inventors: Hyun-Gu Hwang, Hyeong-Jun Park
  • AUTO GAIN CONTROL METHOD IN DIGITAL COMMUNICATION SYSTEM
    Publication number: 20100158167
    Abstract: Provided is an auto gain control method in a digital communication system. The auto gain control method checks a distribution of a signal and a distribution of a signal envelope during a regular check interval, and determines a state of a current gain value from the distribution of the signal and the distribution of the signal envelope which are obtained through the checking of the distribution. The auto gain control method controls a gain value for auto gain control according to the determined state of the current gain value.
    Type: Application
    Filed: August 19, 2009
    Publication date: June 24, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyun Gu HWANG, Hyeong Jun PARK, Hee Sang CHUNG
  • Apparatus and method for detecting advanced GCL sequence in wireless communication system
    Publication number: 20080080643
    Abstract: An apparatus and method for detecting a GCL sequence using a magnitude and a sign of a real part of a I/FDFT output except an imaginary part in a wireless communication system. The apparatus includes: a modified inverse/forward discrete fourier transform (I/FDFT) processing unit for enabling that the GCL sequence class u is detected with only a real part; a real value selecting unit for selecting real parts from the output of the I/FDFT processing unit; and a maximum value detecting unit for detecting a maximum value among magnitudes of the selected real parts having a positive sign from the real value selecting unit.
    Type: Application
    Filed: December 27, 2006
    Publication date: April 3, 2008
    Inventors: Hyun-Gu Hwang, Hyeong-Jun Park