Patents by Inventor Tzu-Yi Tang

Tzu-Yi Tang 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).

  • Timing calibration circuit for time-interleaved analog-to-digital converter and associated method
    Patent number: 8604954
    Abstract: A timing calibration circuit for a time-interleaved analog-to-digital converter (ADC) is provided. The timing calibration circuit includes a correlation unit, an adaptive filter and a delay cell. The correlation unit generates a first correlation coefficient according to a first zero-crossing possibility distribution between a first digital data and a second digital data, and generates a second correlation coefficient according to a second zero-crossing possibility distribution between the second digital data and a third digital data. The adaptive filter generates a predicted time skew according to a difference between the first correlation coefficient and the second correlation coefficient. The delay cell calibrates a clock signal of the ADC according to the predicted time skew.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 10, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chun-Jen Chen, Tsung-Heng Tsai, Tzu-Yi Tang
  • TIMING CALIBRATION CIRCUIT FOR TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTER AND ASSOCIATED METHOD
    Publication number: 20130241755
    Abstract: A timing calibration circuit for a time-interleaved analog-to-digital converter (ADC) is provided. The timing calibration circuit includes a correlation unit, an adaptive filter and a delay cell. The correlation unit generates a first correlation coefficient according to a first zero-crossing possibility distribution between a first digital data and a second digital data, and generates a second correlation coefficient according to a second zero-crossing possibility distribution between the second digital data and a third digital data. The adaptive filter generates a predicted time skew according to a difference between the first correlation coefficient and the second correlation coefficient. The delay cell calibrates a clock signal of the ADC according to the predicted time skew.
    Type: Application
    Filed: August 28, 2012
    Publication date: September 19, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun-Jen Chen, Tsung-Heng Tsai, Tzu-Yi Tang