Patents by Inventor Chiao-Min Chen

Chiao-Min Chen 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).

  • Sigma-delta analog-to-digital converter and operation method thereof
    Patent number: 10693490
    Abstract: A Sigma-Delta (?-?) analog-to-digital converter (ADC) and operation method thereof are provided. The ?-? ADC includes a ?-? modulator, a dynamic element matching (DEM) circuit and a control circuit. An input terminal of the ?-? modulator is configured to receive an analog signal. The ?-? modulator is configured to convert the analog signal into a digital signal based on a feedback signal. The DEM circuit is coupled to the ?-? modulator to receive the digital signal. The DEM circuit is configured to perform a DEM algorithm on the digital signal to generate a feedback signal, and provide the feedback signal to the ?-? modulator. The control circuit listens to the digital signal to detect a mute period. The control circuit disables the DEM circuit during the mute period to suspend a progress of the DEM algorithm.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: June 23, 2020
    Assignee: Faraday Technology Corp.
    Inventors: Chiao-Min Chen, Min-Yuan Wu, Shih-Yi Shih, Po-Liang Chen
  • Audio codec and built-in self test method for the same
    Patent number: 7724165
    Abstract: An audio codec and a BIST method adapted for the audio codec are provided. The BIST method includes the following steps. A first channel digital-to-analog converter (DAC) of the audio codec converts a test signal into an analog signal. A first channel analog-to-digital converter (ADC) of the audio codec converts the analog signal into a digital signal. Use a second channel DAC of the audio codec and a second channel ADC of the audio codec to calculate the magnitudes of a plurality of spectral components of the DFT of the digital signal. Determine whether the audio codec passes the test according to the magnitudes of the spectral components.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: May 25, 2010
    Assignee: Faraday Technology Corp.
    Inventors: Che-Min Lin, Chiao-Min Chen, Kuo-Hsiung Wu
  • AUDIO CODEC AND BUILT-IN SELF TEST METHOD FOR THE SAME
    Publication number: 20100017691
    Abstract: An audio codec and a BIST method adapted for the audio codec are provided. The BIST method includes the following steps. A first channel digital-to-analog converter (DAC) of the audio codec converts a test signal into an analog signal. A first channel analog-to-digital converter (ADC) of the audio codec converts the analog signal into a digital signal. Use a second channel DAC of the audio codec and a second channel ADC of the audio codec to calculate the magnitudes of a plurality of spectral components of the DFT of the digital signal. Determine whether the audio codec passes the test according to the magnitudes of the spectral components.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Applicant: FARADAY TECHNOLOGY CORP.
    Inventors: Che-Min Lin, Chiao-Min Chen, Kuo-Hsiung Wu