Patents by Inventor Chi-Yun Wang

Chi-Yun Wang 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).

  • Electronic device and transmitter DC offset calibration method thereof
    Patent number: 8659456
    Abstract: An embodiment of the invention provides an electronic device. The electronic device includes a digital-to-analog converter (DAC), a transmitter front-end (TX FE), an amplifier, an analog-to-digital converter (ADC), and a swap circuitry. The TX FE has a first and a second input end coupled to a first and a second output end of the DAC, respectively. The ADC has a first and a second input end coupled to a first and a second output end of the amplifier, respectively. The swap circuitry is configured to couple the first and second output ends of the DAC to a first and a second input end of the amplifier in a normal state, respectively, and couple the first and second output ends of the DAC to the second and first input ends of the amplifier in a swapped state, respectively.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: February 25, 2014
    Assignee: Mediatek Inc.
    Inventors: Hsiang-Hui Chang, Hsin-Hung Chen, Chi-Yun Wang, Chih-Jung Chen
  • ELECTRONIC DEVICE AND TRANSMITTER DC OFFSET CALIBRATION METHOD THEREOF
    Publication number: 20130141153
    Abstract: An embodiment of the invention provides an electronic device. The electronic device includes a digital-to-analog converter (DAC), a transmitter front-end (TX FE), an amplifier, an analog-to-digital converter (ADC), and a swap circuitry. The TX FE has a first and a second input end coupled to a first and a second output end of the DAC, respectively. The ADC has a first and a second input end coupled to a first and a second output end of the amplifier, respectively. The swap circuitry is configured to couple the first and second output ends of the DAC to a first and a second input end of the amplifier in a normal state, respectively, and couple the first and second output ends of the DAC to the second and first input ends of the amplifier in a swapped state, respectively.
    Type: Application
    Filed: September 11, 2012
    Publication date: June 6, 2013
    Inventors: Hsiang-Hui Chang, Hsin-Hung Chen, Chi-Yun Wang, Chih-Jung Chen