Patents by Inventor Ke-Fu Ji

Ke-Fu Ji 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 for transmitting and/or receiving audio data of a plurality of audio sources through a single SPDIF link, and related apparatus
    Patent number: 7702005
    Abstract: A method for transmitting audio data of a plurality of audio sources through a single SPDIF link, includes: sequencing and multiplexing the audio data of the plurality of audio sources to pack the audio data of the plurality of audio sources into a plurality of frames of a block; performing bi-phase mark encoding on the audio data in the frames; appending preambles Z, X, and Y of the AES3/SPDIF stream format to the frames according to the number of audio sources in a first mode, or appending preambles Z, X, and Y of the AES3/SPDIF stream format and a specific preamble differing from preambles Z, X, and Y to the frames according to the number of audio sources in a second mode; and outputting the frames carrying the audio data into the SPDIF link with a frame rate greater than an audio sampling frequency of one of the audio sources.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: April 20, 2010
    Assignee: Alpha Imaging Technology Corp.
    Inventors: Chun-Fu Lin, Ken-Ming Li, Xiao-Yun Gu, Chi-Chien Chen, Feng-Sheng Chang, Tao Liu, Ke-Fu Ji
  • METHOD FOR TRANSMITTING AND/OR RECEIVING AUDIO DATA OF A PLURALITY OF AUDIO SOURCES THROUGH A SINGLE SPDIF LINK, AND RELATED APPARATUS
    Publication number: 20080043823
    Abstract: A method for transmitting audio data of a plurality of audio sources through a single SPDIF link, includes: sequencing and multiplexing the audio data of the plurality of audio sources to pack the audio data of the plurality of audio sources into a plurality of frames of a block; performing bi-phase mark encoding on the audio data in the frames; appending preambles Z, X, and Y of the AES3/SPDIF stream format to the frames according to the number of audio sources in a first mode, or appending preambles Z, X, and Y of the AES3/SPDIF stream format and a specific preamble differing from preambles Z, X, and Y to the frames according to the number of audio sources in a second mode; and outputting the frames carrying the audio data into the SPDIF link with a frame rate greater than an audio sampling frequency of one of the audio sources.
    Type: Application
    Filed: August 17, 2006
    Publication date: February 21, 2008
    Inventors: Chun-Fu Lin, Ken-Ming Li, Xiao-Yun Gu, Chi-Chien Chen, Feng-Sheng Chang, Tao Liu, Ke-Fu Ji