JP5680027B2 - 検出電極アレイの制御回路、方法及びこれを用いたタッチ制御検出システム - Google Patents
検出電極アレイの制御回路、方法及びこれを用いたタッチ制御検出システム Download PDFInfo
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- JP5680027B2 JP5680027B2 JP2012153472A JP2012153472A JP5680027B2 JP 5680027 B2 JP5680027 B2 JP 5680027B2 JP 2012153472 A JP2012153472 A JP 2012153472A JP 2012153472 A JP2012153472 A JP 2012153472A JP 5680027 B2 JP5680027 B2 JP 5680027B2
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- 238000001514 detection method Methods 0.000 title claims description 260
- 238000000034 method Methods 0.000 title description 20
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 238000004458 analytical method Methods 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 10
- 230000004044 response Effects 0.000 description 7
- 230000000737 periodic effect Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
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Description
41 制御回路
42 MUX
43 MUX
44 タッチパネル
45 駆動信号発生器
46 LNA
47 計算処理部
48 アクティブスタイラス
411 LNA
412 ダウンコンバージョン回路
413 スイッチ
414 PGA
415 強度−位相周波数変換器
416 位相周波数分析部
4121 ミキサ
4122 LPF
Claims (3)
- 検出電極アレイを含むタッチパネルと、
前記検出電極アレイの制御回路と、
を備え、
前記制御回路は、
前記検出電極アレイの夫々の検出線の検出信号をダウンコンバートし、ダウンコンバート信号を取得するダウンコンバージョン回路と、
前記ダウンコンバート信号に基づいて、位相周波数信号を生成する強度−位相周波数変換器と、
前記位相周波数信号の周波数又は位相に基づいて対応する前記検出線の信号の大きさを取得する位相周波数分析部と、
を有し、
前記ダウンコンバート信号は、実質的に直流電圧信号であり、
前記位相周波数信号の少なくとも周波数又は位相は、前記ダウンコンバート信号のレベルに関連し、
前記位相周波数分析部により生成された信号の大きさに基づいて、前記検出線の信号の変化を決定するマイクロコントロールユニットをさらに備え、
前記検出電極アレイの制御回路は、複数の動作モードを有するタッチ制御検出システムに適用され、
前記マイクロコントロールユニットは、前記タッチパネルに接触する手段が駆動信号を供給するアクティブスタイラスであるか、ユーザの指又はパッシブスタイラスであるかを判定し、
前記タッチパネルに接触する手段が前記ユーザの指又は前記パッシブスタイラスである場合、前記マイクロコントロールユニットは、前記タッチパネルの複数の駆動線に複数の駆動信号を供給し、前記タッチパネルに接触する手段が前記アクティブスタイラスである場合、前記マイクロコントロールユニットは駆動信号を供給せず、前記ダウンコンバージョン回路は夫々の前記駆動線の駆動線信号をダウンコンバートし、対応する前記ダウンコンバート信号を取得する、
タッチ制御検出システム。 - 前記ダウンコンバージョン回路は、
前記検出信号と駆動信号を混合し、混合信号を取得するミキサと、
前記混合信号をフィルタリングし、前記ダウンコンバート信号を生成するローパスフィルタと、
をさらに備える請求項1に記載のタッチ制御検出システム。 - 前記ダウンコンバージョン回路は、
前記検出信号に対数演算を実行し、対数信号を取得する対数増幅器と、
前記対数信号をフィルタリングし、前記ダウンコンバート信号を生成するローパスフィルタと、
をさらに備える請求項1に記載のタッチ制御検出システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110227563.0A CN102915138B (zh) | 2011-08-05 | 2011-08-05 | 感测电极阵列控制电路、控制方法及其触控感测系统 |
CN201110227563.0 | 2011-08-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013037680A JP2013037680A (ja) | 2013-02-21 |
JP5680027B2 true JP5680027B2 (ja) | 2015-03-04 |
Family
ID=47002556
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012153472A Active JP5680027B2 (ja) | 2011-08-05 | 2012-07-09 | 検出電極アレイの制御回路、方法及びこれを用いたタッチ制御検出システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130033442A1 (ja) |
EP (1) | EP2555093A3 (ja) |
JP (1) | JP5680027B2 (ja) |
KR (1) | KR101429809B1 (ja) |
CN (1) | CN102915138B (ja) |
TW (2) | TWM448020U (ja) |
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TWI588689B (zh) * | 2013-05-28 | 2017-06-21 | 敦泰電子股份有限公司 | 具有低雜訊和分時多工的嵌入式多點觸控面板系統及其驅動方法 |
KR101416724B1 (ko) * | 2013-10-15 | 2014-07-09 | 주식회사 아나패스 | 공통 노이즈 제거 방법 및 이를 이용한 터치 정보 검출 방법 |
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-
2011
- 2011-08-05 CN CN201110227563.0A patent/CN102915138B/zh active Active
-
2012
- 2012-06-15 US US13/523,890 patent/US20130033442A1/en not_active Abandoned
- 2012-07-09 JP JP2012153472A patent/JP5680027B2/ja active Active
- 2012-07-19 KR KR1020120078588A patent/KR101429809B1/ko active IP Right Grant
- 2012-07-20 TW TW101213997U patent/TWM448020U/zh not_active IP Right Cessation
- 2012-07-20 TW TW101126131A patent/TWI470494B/zh active
- 2012-08-03 EP EP12179127.1A patent/EP2555093A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP2555093A2 (en) | 2013-02-06 |
US20130033442A1 (en) | 2013-02-07 |
KR101429809B1 (ko) | 2014-08-18 |
TW201308157A (zh) | 2013-02-16 |
CN102915138B (zh) | 2015-09-09 |
KR20130016057A (ko) | 2013-02-14 |
TWM448020U (zh) | 2013-03-01 |
CN102915138A (zh) | 2013-02-06 |
TWI470494B (zh) | 2015-01-21 |
EP2555093A3 (en) | 2014-08-27 |
JP2013037680A (ja) | 2013-02-21 |
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