Patents by Inventor Hyung Min Jang

Hyung Min 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).

  • Method and apparatus for digital up-down conversion using infinite impulse response filter
    Patent number: 8626809
    Abstract: A method and an apparatus for digital up-down conversion using an Infinite Impulse Response (IIR) filter are provided. The method for digital up-down conversion for frequency conversion in a mobile communication system using plural frequency converts, includes IIR-filtering, by a magnitude response IIR filter having the same magnitude response as in Finite Impulse Response (FIR) filtering, an input signal and a stable filter coefficient calculated according to a Levinson polynomial; and receiving, by the magnitude response IIR filter, the IIR filtered signal, and performing IIR filtering by a phase compensation IIR filter having a filter coefficient compensating for a non-linear phase to a linear phase.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: January 7, 2014
    Assignees: Samsung Electronics Co., Ltd, Soongsil University
    Inventors: Jun-Seok Yang, Won-Cheol Lee, Hyung-Min Jang
  • METHOD AND APPARATUS FOR DIGITAL UP-DOWN CONVERSION USING INFINITE IMPULSE RESPONSE FILTER
    Publication number: 20100217790
    Abstract: A method and an apparatus for digital up-down conversion using an Infinite Impulse Response (IIR) filter are provided. The method for digital up-down conversion for frequency conversion in a mobile communication system using plural frequency converts, includes IIR-filtering, by a magnitude response IIR filter having the same magnitude response as in Finite Impulse Response (FIR) filtering, an input signal and a stable filter coefficient calculated according to a Levinson polynomial; and receiving, by the magnitude response IIR filter, the IIR filtered signal, and performing IIR filtering by a phase compensation IIR filter having a filter coefficient compensating for a non-linear phase to a linear phase.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Applicants: Samsung Electronics Co., Ltd., Soongsil University
    Inventors: Jun Seok Yang, Won Cheol Lee, Hyung Min Jang