Patents by Inventor Ting-Yuan Lu

Ting-Yuan Lu 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).

  • Compensation method for touch sensor system
    Patent number: 8170822
    Abstract: A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a touch sensor system; b) initializing the touch sensor system and measuring a reference frequency outputted from a oscillator in the touch sensor system; c) turning on the switch and measuring a first frequency outputted from the oscillator; and d) deducting the first frequency from the reference frequency so as to obtain a frequency difference; and e) comparing the difference with a predetermined value, and judging based upon the difference if the touch sensor system is touched by a foreign object.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 1, 2012
    Assignee: Holtek Semiconductor Inc.
    Inventors: Ting-Yuan Lu, Wen-Liang Liu, Cheng-Mu Wu
  • COMPENSATION METHOD FOR TOUCH SENSOR SYSTEM
    Publication number: 20100245132
    Abstract: A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a touch sensor system; b) initializing the touch sensor system and measuring a reference frequency outputted from a oscillator in the touch sensor system; c) turning on the switch and measuring a first frequency outputted from the oscillator; and d) deducting the first frequency from the reference frequency so as to obtain a frequency difference; and e) comparing the difference with a predetermined value, and judging based upon the difference if the touch sensor system is touched by a foreign object.
    Type: Application
    Filed: April 23, 2009
    Publication date: September 30, 2010
    Applicant: HOLTEK SEMICONDUCTOR INC.
    Inventors: TING-YUAN LU, WEN-LIANG LIU, CHENG-MU WU
  • COMPENSATION METHOD FOR TOUCH SENSOR SYSTEM
    Publication number: 20100250180
    Abstract: A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a touch sensor system; b) initializing the touch sensor system and measuring a reference frequency outputted from a oscillator in the touch sensor system; c) turning on the switch and measuring a first frequency outputted from the oscillator; and d) deducting the first frequency from the reference frequency so as to obtain a frequency difference; and e) comparing the difference with a predetermined value, and judging based upon the difference if the touch sensor system is touched by a foreign object.
    Type: Application
    Filed: December 31, 2009
    Publication date: September 30, 2010
    Applicant: HOLTEK SEMICONDUCTOR INC.
    Inventors: TING-YUAN LU, WEN-LIANG LIU, CHENG-MU WU