Patents by Inventor Jong Kyu Ryu

Jong Kyu Ryu 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).

  • PORTABLE DISPLAY DEVICE
    Publication number: 20120306724
    Abstract: The present invention relates to a portable display device. The display device of the present invention comprises a main unit comprising a first display unit, a sliding second display unit joined to the first display unit, whose action allows display of a separate screen or an extension of the screen of the first display portion, and a sliding component formed between the main unit and the second display unit which enables the sliding of the second display portion against the main unit.
    Type: Application
    Filed: July 24, 2009
    Publication date: December 6, 2012
    Inventors: Sang Kyu Ryu, Won Kyu Ryu, Eun Hee Ryu, Jong Kyu Ryu
  • METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNALS
    Publication number: 20120179459
    Abstract: A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. Also, the method of pre-processing the audio signal may improve a probability that the codec module may determine a corresponding audio signal as a speech when the audio signal is transmitted via the communication network by pre-processing the audio signal using a speech codec.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Applicant: REALNETWORKS, INC.
    Inventors: Jae Woong Jeong, Seop Hyeong Park, Jong Kyu Ryu
  • Improving the quality of output audio signal,transferred as coded speech to subscriber's terminal over a network, by speech coder and decoder tandem pre-processing
    Patent number: 8145479
    Abstract: A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. The method of pre-processing may include encoding the audio signal using a speech codec and decoding the encoded audio signal using the speech codec. A codec module, transmitting the decoded audio signal to the user terminal via the communication network, may determine whether a speech interval or a speechless interval with respect to at least one frame is included in the audio signal and transmit at least one parameter with respect to the at least one frame as a result of the determination.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: March 27, 2012
    Assignee: RealNetworks, Inc.
    Inventors: Jae Woong Jeong, Seop Hyeong Park, Jong Kyu Ryu
  • METHOD OF PROCESSING AUDIO SIGNALS FOR IMPROVING THE QUALITY OF OUTPUT AUDIO SIGNAL WHICH IS TRANSFERRED TO SUBSCRIBER'S TERMINAL OVER NETWORK AND AUDIO SIGNAL PRE-PROCESSING APPARATUS OF ENABLING THE METHOD
    Publication number: 20090299740
    Abstract: A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. Also, the method of pre-processing the audio signal may improve a probability that the codec module may determine a corresponding audio signal as a speech when the audio signal is transmitted via the communication network by pre-processing the audio signal using a speech codec.
    Type: Application
    Filed: January 8, 2007
    Publication date: December 3, 2009
    Applicant: REALNETWORKS ASIA PACIFIC CO., LTD.
    Inventors: Jae Woong Jeong, Seop Hyeong Park, Jong Kyu Ryu