Patents by Inventor Ching-Jung Chu

Ching-Jung Chu 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 realizing virtual multi-channel output by spectrum analysis
    Patent number: 7243073
    Abstract: A method for realizing virtual multi-channel by spectrum analysis is disclosed. The low-frequency-effect sound data is obtained by averaging sound data of left and right channels in the two-channel sound source and filtering the average by a first low pass filter. The central channel sound data is obtained by averaging sound data of the left and the right channels in the two-channel sound source and filtering the average by a second low pass filter. The surround right and left sound data is obtained by copying sound data of the left and the right channels in the two-channel sound source, respectively.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: July 10, 2007
    Assignee: VIA Technologies, Inc.
    Inventors: Ta-Jung Yeh, Wen-Lung Tseng, Ching-Jung Chu
  • Method for realizing virtual multi-channel output by spectrum analysis
    Publication number: 20040037425
    Abstract: A method for realizing virtual multi-channel by spectrum analysis is disclosed. The low-frequency-effect sound data is obtained by averaging sound data of left and right channels in the two-channel sound source and filtering the average by a first low pass filter. The central channel sound data is obtained by averaging sound data of the left and the right channels in the two-channel sound source and filtering the average by a second low pass filter. The surround right and left sound data is obtained by copying sound data of the left and the right channels in the two-channel sound source, respectively.
    Type: Application
    Filed: August 13, 2003
    Publication date: February 26, 2004
    Applicant: VIA Technologies, Inc.
    Inventors: Ta-Jung Yeh, Wen-Lung Tseng, Ching-Jung Chu
  • Apparatus for converting to six-channel outputs from two-channel
    Publication number: 20040037426
    Abstract: A apparatus formed on a motherboard of computer complied with PC99 standard for converting to six-channel output from two-channel is disclosed. The apparatus comprises a CODEC, a MIC_IN connector switch, first, second, and third filters, and a resistor circuit. In a six-channel output mode, the rear left and rear right surround signals and LINE_IN_L and LINE_IN_R signals are fed into the third filter.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 26, 2004
    Applicant: VIA Technologies, Inc.
    Inventors: Ching-Jung Chu, Ta-Jung Yeh, Feng-Sheng Chang, I-Cheng Tsou, Chi-Yi Lee, Weishang Chu