Title:
タッチパネルシステムおよび電子機器
Document Type and Number:
Japanese Patent JP5845344
Kind Code:
B2
Abstract:
A touch panel system is provided with: a touch panel comprising a plurality of drive lines that form capacitance between a plurality of sense lines and other sense lines that are provided so as to intersect with the aforementioned sense lines; a touch panel controller that processes the signals of the sense lines; and a drive line drive circuit for driving the drive lines in parallel. The touch panel controller comprises: a subtraction unit for calculating the difference between the signals of sense lines that are adjacent to one another; a decoding unit that calculates the difference distribution of the capacitance by calculating the inner product of the code sequence for driving the drive lines in parallel and a difference that corresponds to the code sequence; a touch detection unit that obtains touch information on the basis of the difference distribution of the capacitance that is calculated by the decoding unit; and a region-setting unit that sets an active region on the touch panel on the basis of the touch information.
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Inventors:
Masayuki Miyamoto
Shinichi Yoshida
Akira Nishioka
Yumoto Manabu
Kengo Takahama
Shinichi Yoshida
Akira Nishioka
Yumoto Manabu
Kengo Takahama
Application Number:
JP2014518153A
Publication Date:
January 20, 2016
Filing Date:
May 30, 2012
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G06F3/041; G06F3/044
Domestic Patent References:
| JP2011128982A | 2011-06-30 | |||
| JP4927216B1 | 2012-05-09 | |||
| JPH08106358A | 1996-04-23 | |||
| JP2010516008A | 2010-05-13 |
Attorney, Agent or Firm:
Yoshifumi Masaki
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