Patents by Inventor Jae Mi Bahn

Jae Mi Bahn 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).

  • Determining an initial common scale factor for audio encoding based upon spectral differences between frames
    Patent number: 8600764
    Abstract: Disclosed herein is a quantization method and apparatus of an audio encoder. The quantization method comprises calculating an absolute value of a maximum frequency spectrum of a first frame, externally received, by analyzing frequency spectrum data of the first frame, setting an initial value of a common scale factor to be used to quantize the first frame based on the absolute value of the maximum frequency spectrum of the first frame and an absolute value of a maximum frequency spectrum of a second frame, which has previously been calculated, and quantizing the frequency spectrum data of the first frame based on the set initial value of the common scale factor. Accordingly, before quantization is performed, an initial value of a common scale factor which is almost close to a value of an actual common scale factor can be previously set.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: December 3, 2013
    Assignee: Core Logic Inc.
    Inventor: Jae Mi Bahn
  • Apparatus for decoding audio data with scalability and method thereof
    Patent number: 7831436
    Abstract: An apparatus for decoding audio data that is capable of reducing the amount of calculations that are performed during the arithmetic decoding of an audio signal coded by bit sliced arithmetic coding (BSAC) to improve the performance of a decoder and a method thereof are provided.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: November 9, 2010
    Assignee: Core Logic Inc.
    Inventors: Hun Joong Kim, Yeong Uk Ahn, Jae Mi Bahn
  • Quantization for Audio Encoding
    Publication number: 20100228556
    Abstract: Disclosed herein is a quantization method and apparatus of an audio encoder. The quantization method comprises calculating an absolute value of a maximum frequency spectrum of a first frame, externally received, by analyzing frequency spectrum data of the first frame, setting an initial value of a common scale factor to be used to quantize the first frame based on the absolute value of the maximum frequency spectrum of the first frame and an absolute value of a maximum frequency spectrum of a second frame, which has previously been calculated, and quantizing the frequency spectrum data of the first frame based on the set initial value of the common scale factor. Accordingly, before quantization is performed, an initial value of a common scale factor which is almost close to a value of an actual common scale factor can be previously set.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Applicant: CORE LOGIC, INC.
    Inventor: Jae Mi Bahn
  • APPARATUS FOR DECODING AUDIO DATA WITH SCALABILITY AND METHOD THEREOF
    Publication number: 20070171990
    Abstract: An apparatus for decoding audio data that is capable of reducing the amount of calculations that are performed during the arithmetic decoding of an audio signal coded by bit sliced arithmetic coding (BSAC) to improve the performance of a decoder and a method thereof are provided.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Inventors: Hung Joong KIM, Yeong Uk Ahn, Jae Mi Bahn