Patents by Inventor You-Tsai Cheng

You-Tsai Cheng 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).

  • Apparatus and method for calibrating audio-visual signal
    Patent number: 8525937
    Abstract: An apparatus for calibrating an audio-visual (AV) signal includes a controller for generating a control signal, a controllable filter for selectively filtering the AV signal in response to the control signal to output either the AV signal or a filtered AV signal; and a calibrator for generating a group of calibrating coefficients according to the filtered AV signal and calibrating the AV signal according to the group of calibrating coefficients.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 3, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventors: Wen Chieh Yang, Ching Fu Lan, Jen Hsing Wang, Yi Hsuan Lai, Chin Fu Ho, Hsin Chuan Kuo, You Tsai Cheng, Tai Lai Tung
  • Analog TV signal receiving circuit for reducing signal distortion using equalizer configuring method
    Patent number: 8525932
    Abstract: An analog television (TV) signal receiving circuit and method and an associated equalizer coefficient configuration apparatus and method are disclosed for correcting a distortion problem occurred in a reception process of an analog TV signal by configuring an equalizer in the analog TV signal receiving circuit. The analog TV signal receiving TV includes a tuner, an analog-to-digital converter (ADC), and a demodulator. The tuner receives an analog radio-frequency (RF) TV signal to generate an analog frequency down conversion signal. The ADC generates a digital frequency down conversion signal according to the analog frequency down conversion signal. The demodulator includes a front-end circuit for generating a digital demodulated signal according to the digital frequency down conversion signal, and an equalizer for generating a digital receiving signal according to the digital demodulated signal. The equalizer includes a plurality of correction coefficients that are generated according to a predetermined rule.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 3, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventors: Ching Fu Lan, Wen Chieh Yang, Yi Hsuan Lai, Hsin Chuan Kuo, You Tsai Cheng, Chin Fu Ho, Jen Hsing Wang, Tai Lai Tung
  • Apparatus and Method for Calibrating Audio-Visual Signal
    Publication number: 20120218420
    Abstract: An apparatus for calibrating an audio-visual (AV) signal includes a controller for generating a control signal, a controllable filter for selectively filtering the AV signal in response to the control signal to output either the AV signal or a filtered AV signal; and a calibrator for generating a group of calibrating coefficients according to the filtered AV signal and calibrating the AV signal according to the group of calibrating coefficients.
    Type: Application
    Filed: August 24, 2011
    Publication date: August 30, 2012
    Applicant: MStar Semiconductor, Inc.
    Inventors: Wen Chieh Yang, Ching Fu Lan, Jen Hsing Wang, Yi Hsuan Lai, Chin Fu Ho, Hsin Chuan Kuo, You-Tsai Cheng, Tai Lai Tung
  • Analog TV Signal Receiving Circuit For Reducing Signal Distortion Using Equalizer Configuring Method
    Publication number: 20120212674
    Abstract: An analog television (TV) signal receiving circuit and method and an associated equalizer coefficient configuration apparatus and method are disclosed for correcting a distortion problem occurred in a reception process of an analog TV signal by configuring an equalizer in the analog TV signal receiving circuit. The analog TV signal receiving TV includes a tuner, an analog-to-digital converter (ADC), and a demodulator. The tuner receives an analog radio-frequency (RF) TV signal to generate an analog frequency down conversion signal. The ADC generates a digital frequency down conversion signal according to the analog frequency down conversion signal. The demodulator includes a front-end circuit for generating a digital demodulated signal according to the digital frequency down conversion signal, and an equalizer for generating a digital receiving signal according to the digital demodulated signal. The equalizer includes a plurality of correction coefficients that are generated according to a predetermined rule.
    Type: Application
    Filed: August 24, 2011
    Publication date: August 23, 2012
    Applicant: MStar Semiconductor, Inc.
    Inventors: CHING FU LAN, Wen Chieh Yang, Yi Hsuan Lai, Hsin Chuan Kuo, You-Tsai Cheng, Chin Fu Ho, Jen Hsing Wang, Tai Lai Tung