Title:
TOUCH PANEL SYSTEM AND ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JP2012150819
Kind Code:
A
Abstract:
To provide a touch panel system that is capable of certainly removing a variety kind of noise.
A touch panel system 1j has touch panels 3c driven in parallel, and a decoder 58 decodes a differential value of capacitance which is calculated by a subtraction unit 41a. Since a capacitance signal is thus obtained by being multiplied by a code length (N), the signal is not dependent on the number of drive lines 35, thereby increasing signal intensity of the capacitance.
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Inventors:
YUMOTO MANABU
MIYAMOTO MASAYUKI
YOSHIDA SHINICHI
TAKAHAMA KENGO
MIYAMOTO MASAYUKI
YOSHIDA SHINICHI
TAKAHAMA KENGO
Application Number:
JP2012031114A
Publication Date:
August 09, 2012
Filing Date:
February 15, 2012
Export Citation:
Assignee:
SHARP KK
International Classes:
G06F3/041; G06F3/044
Domestic Patent References:
| JPH1020992A | 1998-01-23 | |||
| JP2010092152A | 2010-04-22 |
Foreign References:
| WO2009107415A1 | 2009-09-03 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office
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