Patents by Inventor Dae-Ig Jang

Dae-Ig Jang 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 acquiring frame synchronization and frequency synchronization simultaneously in communication system
    Patent number: 8259646
    Abstract: An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: September 4, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Pan-Soo Kim, Dae-Ig Jang, Deock-Gil Oh, Ho-Jin Lee
  • APPARATUS AND METHOD FOR ACQUIRING FRAME SYNCHRONIZATION AND FREQUENCY SYNCHRONIZATION SIMULTANEOUSLY IN COMMUNICATION SYSTEM
    Publication number: 20100039985
    Abstract: An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e.
    Type: Application
    Filed: December 3, 2007
    Publication date: February 18, 2010
    Inventors: Pan-Soo Kim, Dae-Ig Jang, Deock-Gil Oh, Ho-Jin Lee