Patents Assigned to NPLANIC CO., LTD.
  • Apparatus and method for detecting hovering object, switching matrix, apparatus for determining compensation capacitance, method of compensating for force sensing capacitance, and apparatus for detecting force input
    Patent number: 10345947
    Abstract: Disclosed is a method of detecting a hovering object, the method including: an operation of precharging a compensation capacitor and a parallel capacitor, which is obtained by connecting in parallel a self-capacitor formed between an object hovering over a touch panel and an electrode of the touch panel and a parasitic capacitor of the touch panel, with a predetermined voltage; a first charge sharing operation of sharing charges by connecting the parallel capacitor and the compensation capacitor in series; a second charge sharing operation of sharing charges by connecting the parallel capacitor and the compensation capacitor in parallel; and an operation of outputting an electrical signal provided by the parallel capacitor while the parallel capacitor and the compensation capacitor are connected in parallel.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: July 9, 2019
    Assignees: MELFAS INC., NPLANIC CO., LTD.
    Inventors: Seung Wook Lee, Byung Sang Rhim, Jeong Woo Lee
  • APPARATUS AND METHOD FOR DETECTING HOVERING OBJECT, SWITCHING MATRIX, APPARATUS FOR DETERMINING COMPENSATION CAPACITANCE, METHOD OF COMPENSATING FOR FORCE SENSING CAPACITANCE, AND APPARATUS FOR DETECTING FORCE INPUT
    Publication number: 20160349906
    Abstract: Disclosed is a method of detecting a hovering object, the method including: an operation of precharging a compensation capacitor and a parallel capacitor, which is obtained by connecting in parallel a self-capacitor formed between an object hovering over a touch panel and an electrode of the touch panel and a parasitic capacitor of the touch panel, with a predetermined voltage; a first charge sharing operation of sharing charges by connecting the parallel capacitor and the compensation capacitor in series; a second charge sharing operation of sharing charges by connecting the parallel capacitor and the compensation capacitor in parallel; and an operation of outputting an electrical signal provided by the parallel capacitor while the parallel capacitor and the compensation capacitor are connected in parallel.
    Type: Application
    Filed: May 19, 2016
    Publication date: December 1, 2016
    Applicants: MELFAS INC., NPLANIC CO., LTD.
    Inventors: Seung Wook LEE, Byung Sang RHIM, Jeong Woo LEE