Touch panel device and method of correcting coordinates on touch panel

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United States of America Patent

PATENT NO 9886157
SERIAL NO

14854519

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A touch panel device includes: a detection unit that detects coordinates of a pressed point on an input surface of a touch panel; and a correction unit that corrects the coordinates detected by the detection unit to obtain corrected coordinates, wherein the correction unit approximates, when a predetermined number of reference points arranged on the input surface are pressed, curves passing through coordinates of the reference points by second order or higher order polynomial equations, specifies, when an arbitrary point on the input surface is pressed, a region including coordinates of the arbitrary point from regions obtained by dividing the input surface by the curves, calculates distances from the coordinates of the arbitrary point to curves that define the specified region among the curves with the second order or higher order polynomial equations, and calculates the corrected coordinates based on a location of the specified region and the distances.

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Patent Owner(s)

Patent OwnerAddress
FUJITSU COMPONENT LIMITED12-4 HIGASHI-SHINAGAWA 4-CHOME SHINAGAWA-KU TOKYO 140-0002

International Classification(s)

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  • 2015 Application Filing Year
  • G06F Class
  • 57200 Applications Filed
  • 45873 Patents Issued To-Date
  • 80.20 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagihara, Hideyuki Tokyo, JP 8 11
Makiuchi, Yuji Tokyo, JP 10 11

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  • 0 Citation Count
  • G06F Class
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  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges785123150394313806693311801076047295401 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +02000400060008000100001200014000160001800020000220002400026000

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