Patents Assigned to PIXCIR MICROELECTRONICS CO., LTD.
  • Device for quantifying an electric unbalance and touch detection system incorporating it
    Patent number: 8471570
    Abstract: A device for detecting and quantifying an unbalance between first and second electric paths (R, S; S, VPS), particularly for a touch detection system, comprises: (a) comparison means (CC; CD) receiving at respective inputs the first and second paths; (b) variable transfer capacitance means (CPB; CPC) connected to at least one of the paths; and (c) a control unit (UC) connected between the comparison means and the variable transfer capacitance means and adapted to vary the variable transfer capacitance of said variable transfer capacitance means as a function of the result (Q) produced by the comparison means up to compensation of the unbalance.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: June 25, 2013
    Assignee: Pixcir Microelectronics Co., Ltd.
    Inventor: Lionel Portmann
  • DEVICE FOR QUANTIFYING AN ELECTRIC UNBALANCE AND TOUCH DETECTION SYSTEM INCORPORATING IT
    Publication number: 20100315102
    Abstract: A device for detecting and quantifying an unbalance between first and second electric paths (R, S; S, VPS), particularly for a touch detection system, comprises: (a) comparison means (CC; CD) receiving at respective inputs the first and second paths; (b) variable transfer capacitance means (CPB; CPC) connected to at least one of the paths; and (c) a control unit (UC) connected between the comparison means and the variable transfer capacitance means and adapted to vary the variable transfer capacitance of said variable transfer capacitance means as a function of the result (Q) produced by the comparison means up to compensation of the unbalance.
    Type: Application
    Filed: January 14, 2009
    Publication date: December 16, 2010
    Applicant: PIXCIR MICROELECTRONICS CO., LTD.
    Inventor: Lionel Portmann