TW201308136A - 主動式觸控筆 - Google Patents

主動式觸控筆 Download PDF

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TW201308136A
TW201308136A TW101122110A TW101122110A TW201308136A TW 201308136 A TW201308136 A TW 201308136A TW 101122110 A TW101122110 A TW 101122110A TW 101122110 A TW101122110 A TW 101122110A TW 201308136 A TW201308136 A TW 201308136A
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touch sensor
sensor panel
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Jonah A Harley
David I Simon
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Apple Inc
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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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0383—Signal control means within the pointing device
    • 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
    • G06F3/0441—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals
    • 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
    • G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

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Abstract

揭示一種主動式觸控筆。該觸控筆包括：該觸控筆之一尖端處的一電極；及帶電電路，其耦接至該電極且經組態以電容性地耦合該電極與一電容性觸碰式感測器面板。該帶電電路可進一步：包括驅動電路，該驅動電路經組態以在該電極處輸出一驅動電壓，及/或感測電路，該感測電路經組態以感測在該電極處接收到之一電壓。

Description

主動式觸控筆
本發明大體上係關於觸碰感測，且更特定而言係關於提供一種可充當電容性觸控系統中之驅動及/或感測元件的觸控筆。
許多類型之輸入器件可用於在計算系統中執行操作，該等輸入器件諸如：按鈕或鍵、滑鼠、軌跡球、觸碰式感測器面板、操縱桿、觸控板、觸控式螢幕及其類似者。詳言之，觸敏式器件及觸控式螢幕因為其操作之簡易性及多功能性以及其下降之價格而正變得日益風行。觸敏式器件可包括觸碰式感測器面板，該觸碰式感測器面板可為具有觸敏式表面之透明面板；及諸如液晶顯示器(LCD)之顯示器件，該顯示器件可部分或完全位於面板後面或與面板整合，使得觸敏式表面可實質上覆蓋顯示器件的可檢視之區域。觸敏式器件通常可允許使用者藉由使用一或多個手指、觸控筆或其他物件在通常由正由顯示器顯示之包括虛擬按鈕、鍵、列(bar)、顯示及其他元件的使用者介面(UI)指定之位置處觸碰觸碰式感測器面板或暫留於觸碰式感測器面板上來執行各種功能。一般而言，觸控式螢幕可辨識觸碰事件及觸碰事件在觸碰式感測器面板上的位置或暫留事件及暫留事件在觸碰式感測器面板上之位置，且計算系統可接著根據在事件發生時顯現之顯示解譯觸碰或暫留事件，且其後可執行基於事件的一或多個操作。
觸控式螢幕可允許使用者藉由用手指、觸控筆或其他物件觸碰觸碰式感測器面板來執行各種功能。更高級之觸控式螢幕能夠同時偵測多個觸碰。一般而言，觸控式螢幕可辨識觸碰式感測器面板上之一或多個觸碰的位置，且計算系統可接著根據在觸碰事件時顯現之顯示而個別地解譯該等觸碰或將該等觸碰解譯為單一示意動作，且其後可基於觸碰事件執行一或多個動作。
當觸控筆已用作電容性觸控系統中之輸入器件時，觸控筆按照慣例具有類似於手指的性質。習知觸控筆通常僅為具有手指大小之圓化尖端的導電桿，該圓化尖端足夠大以中斷電容性觸碰式感測器面板之驅動電極與感測電極之間的電場線。因而，習知觸控筆為被動式輸入器件，因為該等習知觸控筆不能在電容性觸碰式感測器面板中主動地傳輸激勵信號或感測觸碰誘發之電容改變。
本發明大體上係關於一種可充當一電容性觸控系統中之一驅動元件及/或一感測元件的觸控筆。不同於藉由阻斷一電容性觸碰式感測器面板之驅動電極與感測電極之間的電場線而被動地起作用之習知觸控筆，本發明之各種實施例中揭示的該等觸控筆可充當一驅動電極以在該驅動電極與一互電容性觸碰式感測器面板之感測線之間建立一電場，或充當一感測電極以感測來自該觸碰式感測器面板之一或多個經激勵驅動列及行的電容性耦合信號，或充當兩者。因而，與習知被動式觸控筆相比較，本文中揭示之觸 控筆可稱為主動式觸控筆。此等主動式觸控筆可顯著改良互電容性觸碰式感測器面板上的觸控筆感測，而不招致顯著額外成本。
在實例實施例之以下描述中，參看藉由說明來展示可實踐的特定實施例的隨附圖式。應理解，在不偏離各種實施例之範疇的情況下，可使用其他實施例，且可進行結構改變。
本發明大體上係關於一種可充當一電容性觸控系統中之一驅動元件及/或一感測元件的觸控筆。不同於藉由阻斷一電容性觸碰式感測器面板之驅動電極與感測電極之間的電場線而被動地起作用之習知觸控筆，本發明之各種實施例中揭示的該等觸控筆可充當一驅動電極以在該驅動電極與一互電容性觸碰式感測器面板之感測線之間建立一電場，或充當一感測電極以感測來自該觸碰式感測器面板之一或多個經激勵驅動列及行的電容性耦合信號，或充當兩者。因而，與習知被動式觸控筆相比較，本文中揭示之該等觸控筆可稱為主動式觸控筆。此等主動式觸控筆可顯著改良互電容性觸碰式感測器面板上的觸控筆感測，而不招致顯著額外成本。
在以下段落中，在介紹本發明之各種例示性實施例之前，首先論述典型電容性觸碰式感測器面板之結構及其與習知被動式觸控筆之互動的簡明描述。
電容性觸碰式感測器面板在此項技術中為熟知的，且已 在諸如以下各者之各種類型之電子器件中廣泛採用：平板PC(例如，可購自Cupertino,CA之Apple Inc.的iPad®)及智慧型電話(例如，可購自Cupertino,CA之Apple Inc.的iPhone®)。一類風行的電容性觸碰式感測器面板可包括互電容性觸碰式感測器面板，該互電容性觸碰式感測器面板由在介電質之相反側上或在基板之同一側上鄰近於彼此的驅動線及感測線(例如，跡線的列及行)形成。在跡線的「交叉點」(在該處，跡線在上方及下方經過或鄰近於彼此(但彼此不直接電接觸))處，跡線本質上形成兩種電極。在一實施例中，用於在顯示器件之上使用之觸碰式感測器面板可利用一玻璃頂層及一玻璃底層，在該玻璃頂層上已蝕刻有氧化銦錫(ITO)或氧化銻錫(ATO)之透明行跡線，在該玻璃底層上已蝕刻有ITO列跡線。玻璃頂層與玻璃底層可由充當列跡線與行跡線之間的介電質之透明聚合物間隔物分離。亦預期到將其他觸碰式感測器面板組態(諸如，具有在基板之相反側上或在基板之相同側上的驅動線及感測線之彼等組態)及自電容觸碰式感測器面板與本發明之實施例一起使用。
圖1a說明例示性電容性觸碰式感測器面板100。圖1a指示在位於列104及行106的跡線之交叉點處之每一像素102處存在雜散電容Cstray(儘管為了使圖簡化，在圖1a中僅說明一行之Cstray)。請注意，儘管圖1a將列104及行106說明為實質垂直的，但列104及行106不必如此對準。在圖1a之實例中，AC激勵Vstim 114正被施加至一列，而所有其他 列連接至DC。該激勵使得電荷經由交點處之互電容而注入至行電極中。每一行106可選擇性地連接至一或多個類比通道。
圖1b提供處於穩態(無觸碰)條件之例示性觸控像素102的側視圖。在圖1b中，展示了由介電質110分離之行106之跡線或電極與列104之跡線或電極之間的互電容之具有電場線108的電場。
圖1c提供處於動態(觸碰)條件之例示性像素102的側視圖。在圖1c中，已接近像素102置放了導電物件112。如圖所展示，導電物件112可為觸控筆。然而，應理解，導電物件112亦可為手指或導電的任何其他事物。導電物件112可為處於信號頻率之低阻抗物件，且可具有自行跡線104至物件之電容Cstylus。導電物件112可具有遠大於Cstylus之至接地的自電容Cbody。若導電物件112阻斷列電極與行電極之間的一些電場線108(脫離介電質且穿過列電極上方之空氣的彼等邊緣場)，則彼等電場線可經由導電物件中固有之電容性路徑分路至接地，且結果，穩態信號或互電容Csig可被減小△Csig(其在本文中亦可稱為Csig_sense)。換言之，導電物件之電容可充當至接地之分路或動態返回路徑，從而阻斷電場中之一些並導致減小之淨信號電容。
當將習知觸控筆用作導電物件時，觸控筆之尖端通常經設計成足夠大的以便中斷電場線。實際上，經設計成在電容性觸碰式感測器面板上使用之許多習知觸控筆具有手指大小之尖端。具有小尖端之觸控筆可能不能阻斷足夠多之 電場線，從而使電容性觸碰式感測器面板無法偵測到。
當導電物件充當至接地之分路且阻斷電場線中之一些時，像素處之信號電容變為Csig-△Csig，其中Csig表示靜態(無觸碰)分量，且△Csig表示動態(觸碰)分量。此電容改變可用以偵測在觸碰式感測器面板之特定位置(例如，像素102)處的觸碰。亦可藉由使用如上文所論述之同一方法判定在觸碰式感測器面板之每一像素處是否存在電容改變來在觸碰式感測器面板上同時偵測多個觸碰。
存在上文論述之習知被動式觸控筆的若干缺點。首先，如上文所提及，被動式觸控筆需要具有足夠大的尖端以便中斷來自電容性觸碰式感測器面板之電場。此情形將使得在現有電容性觸碰式感測器面板上使用具有小尖端之觸控筆為較不理想的(若並非不可能)。此外，因為在被動式觸控筆上尖端為相對大的，且可能與觸碰式感測器面板之多個觸控像素重疊，所以觸控筆之觸碰的準確位置可能難以確定。此外，因為被動式觸控筆以與手指或任何其他觸碰物件相同之方式起作用，所以可能不能將被動式觸控筆之觸碰與手指或具有類似大小及形狀之其他物件的觸碰進行區分，因此使得觸碰式感測器面板更難以基於觸碰物件之身分來篩除觸碰。
本發明之實施例介紹各種主動式觸控筆，該等主動式觸控筆可擺脫習知被動式觸控筆之一些或所有缺點，且可在互電容性觸控系統中提供改良之觸控筆感測。如上文所提及，本文中所揭示之主動式觸控筆可充當互電容性觸控系 統中之驅動電極、感測電極或兩者。
首先論述觸控筆可充當驅動電極之實施例。在此等實施例中，觸控筆可充當由激勵信號激勵以與互電容性觸碰式感測器面板之最接近的導電列及/或行電容性地耦合的驅動元件，藉此形成用於將電荷自觸控筆耦合至該最接近的列及/或行的電容路徑。最接近的列及/或行可將表示電荷耦合的信號輸出至感測電路。
圖2說明組態為驅動電極之例示性主動式觸控筆200。觸控筆200可容納連接至在觸控筆之遠端(亦即，尖端)處的電極202的驅動電路204。驅動電路204可產生激勵信號，可自電極202主動地傳輸該激勵信號。
驅動電路204可類似於在現有電容性觸碰式感測器面板中找到之彼等驅動電路。圖3說明根據各種實施例之觸控筆200的例示性驅動電路204。觸控筆驅動電路204可包括時鐘306以提供驅動信號，包括微控制器308以控制驅動信號，及包括放大器310以使時鐘信號增益放大而至尖端電極202。另外，驅動電路204可連接至內建於觸控筆中的電源206，諸如電池。在另一實施例中，可經由連接觸控筆與另一電子器件(諸如，觸碰式感測器件)之纜線或經由電感耦合自該器件中之電源供應電力。
在觸控筆充當驅動電極(例如，圖2之觸控筆200)之實施例中，電容性觸碰式感測器面板可偵測由於來自觸控筆之激勵而耦合至面板上之感測線中的電荷，且判定觸控筆在電容性觸碰式感測器面板之表面上的位置。習知互電容性 觸碰式感測器面板通常具有呈多行(如圖1a中所展示)抑或呈多列(但不同時呈兩者)的感測電極。彼等觸碰式感測器面板可藉由識別經激勵之驅動列及已偵測到電容改變之感測行來判定觸碰的位置。然而，在本文中所揭示之實施例中，當自主動式觸控筆接收到激勵時，電容性觸碰式感測器面板上之列及行皆可為感測線以判定觸控筆觸碰的位置。
圖4說明經設計以用於與充當驅動電極之主動式觸控筆互動的例示性電容性觸碰式感測器面板400。如所說明，電容性觸碰式感測器面板400可包括感測列(R0至R4)及感測行(C0至C3)。儘管在圖4中說明了五個列及四個行，但應理解，基於(例如)觸碰式感測器面板之大小及觸碰式感測器面板的所要觸控解析度可建置不同數目的感測列及感測行。感測列及感測行可為導電的。感測列及感測行中之每一者可將其電容讀數輸出至一或多個感測電路(統稱為402)以供進一步處理。感測列及感測行可形成於基板之同一表面上、基板之相反表面上，或兩個不同基板的表面上。
圖5說明圖2之主動式觸控筆與圖4之電容性觸碰式感測器面板的感測線之例示性耦合。如所說明，當觸控筆尖端與電容性觸碰式感測器面板400接觸(或緊密接近於電容性觸碰式感測器面板400)時，尖端中之電極202可受到激勵以主動地產生電場線(統稱為404)，且形成與電容性觸碰式感測器面板400之感測列406及/或行408的電容耦合。換言 之，可形成用於將電荷自觸控筆200耦合至感測列406及行408的電容路徑。感測列406及行408可將表示電荷耦合的信號輸出至感測電路(圖5中未圖示)。基於從其接收到信號之列及行，可判定觸控筆觸碰的位置。
在一些實施例中，觸控筆200可包括多個電極，觸控筆200在電容耦合至觸碰式感測器面板時允許觸碰式感測器面板擷取反映觸控筆之條件(諸如，觸控筆之定向及翻轉一圈(barrel roll))的觸碰資料。此等實施例在同在申請中之美國專利申請案(代理人案號106842042500)中充分描述，該美國專利申請案在與本申請案相同之日期申請且讓與給本申請案之共同受讓人。該同在申請中之申請案之全文為了所有目的以引用之方式併入本文中。
在一些其他實施例中，觸控筆200可併有一或多個額外組件，諸如壓力感測器、運動/定向感測器、加速度計、觸碰式感測器、旋轉感測器、攝影機、光發射器、顏色感測器等。使用該等額外組件中之一或多者，觸控筆可擷取資訊，諸如在觸控筆之尖端處感測到之壓力、定向及旋轉資訊，或觸控筆之尖端與表面之間的距離。此等實施例在另一同在申請中之美國專利申請案(代理人案號106842042200)中充分描述，該美國專利申請案在與本申請案相同之日期申請且讓與給本申請案之共同受讓人。該同在申請中之申請案之全文亦為了所有目的以引用之方式併入本文中。
在又其他實施例中，觸控筆200可產生脈衝化信號，該 脈衝化信號可編碼諸如關於觸控筆之遙測資料及來自觸控筆的其他類型之資料的資料，且將該資料傳輸至觸碰式感測器件。在一實施例中，可(例如)以摩斯(Morse)碼來編碼資料。本質上，觸控筆可利用觸碰式感測器面板作為通信通道以將資料直接傳輸至主機觸碰式感測器件。此等實施例在又一同在申請中之美國專利申請案(代理人案號106842042300)中充分描述，該美國專利申請案亦在與本申請案相同之日期申請且讓與給本申請案之共同受讓人。該申請案之全文亦為了所有目的以引用之方式併入本文中。
在一些實施例中，電容性觸碰式感測器面板亦可包括內建驅動線。舉例而言，如在習知互電容性觸碰式感測器面板中一般，圖4之觸碰式感測器面板可包括呈多行或多列(未圖示)之驅動線。若驅動線呈多列，則該等驅動線可與行感測線(C0至C3)電容耦合。若驅動線呈多行，則該等驅動線可與列感測線(R0至R4)電容耦合。此情形使觸碰式感測器面板能夠偵測諸如手指及習知被動式觸控筆之其他觸碰物件的觸碰。實際上，觸碰式感測器面板可保持現有互電容性觸碰式感測器面板中所提供的所有功能性。
在一實施例中，觸碰式感測器面板及觸控筆中之驅動電極可經頻率多工，亦即，以不同頻率進行激勵。舉例而言，可以100 kHz驅動觸碰式感測器面板中之驅動線，且可以200 kHz驅動觸控筆中之電極。在另一實施例中，觸碰式感測器面板及觸控筆中之驅動電極可經時間多工，亦 即，在不同時間進行激勵。舉例而言，在將總計16 ms分配用於觸碰式感測器面板感測之觸碰式感測器面板中，15 ms可用於驅動觸碰式感測器面板中的驅動線，且剩餘1 ms可用於驅動觸控筆。使用頻率多工或時間多工，可區別觸控筆之觸控與觸碰式感測器面板上的其他觸碰。多種其他電壓型樣亦可用以將觸控筆與觸碰信號相區分，諸如用於RF通信中的彼等信號。
在具有驅動線及感測線兩者之現有電容性觸碰式感測器面板中，可由混頻器將來自感測線之輸出信號與原始驅動信號之複本混頻，以回應於觸碰產生與驅動線與感測線之間的耦合的電容成比例的DC信號。為了獲得正確DC信號，當由混頻器處理時，來自感測線之輸出信號與原始信號應同相。此情形在驅動線及感測線皆在面板中且可易於同步化的現有觸碰式感測器面板中應不會引起難題。若如在上文所揭示之實施例中一般驅動電極係在觸控筆中，則驅動信號與來自觸碰式感測器面板之感測線的輸出信號之同步可使用包括在以下段落中描述之彼等方法的不同方法來達成。
在一實施例中，觸控筆可藉由纜線實體地連接至觸碰式感測器件。可使用觸碰式感測器件上之現有埠(諸如，音訊插口或30接針插口)來進行連接。在第二實施例中，可經由諸如WiFi及藍芽之無線頻道使觸控筆與觸碰式感測器件同步。在兩項實施例中，可分別經由實體通道或無線頻通使驅動信號與輸出信號同步。
在第三實施例中，可執行感測器處之同相/正交(IQ)解調變以避開觸控筆可充當驅動電極之觸敏式系統中的同步問題。圖6說明例示性感測電路610。感測電路610可感測來自觸碰式感測器面板之電容耦合至觸控筆的導電元件之電容。觸控筆感測電路610可包括放大器670以接收來自面板之電容讀數，包括時鐘640以產生解調變信號，包括移相器645以產生經移相解調變信號，包括混頻器633以藉由同相解調變頻率分量來解調變電容讀數，及包括混頻器687以藉由正交解調變頻率分量解調變電容讀數。經解調變之結果(亦即，同相分量643及正交分量697)可接著用以判定與電容成比例之振幅。本質上，IQ解調變可消除使來自觸控筆之驅動信號與來自觸碰式感測器面板之輸出信號相位同步的需要。然而，在此實施例中可能仍需要頻率匹配，使得觸控筆可正以與觸碰式感測器面板正在收聽之頻率相同的頻率進行驅動。
在上文所揭示之實施例中，觸控筆可充當觸碰感測系統中的驅動電極。以下實施例揭示觸控筆可充當感測電極的觸碰感測系統。詳言之，觸控筆可充當與觸碰式感測器面板之最接近的導電列或行電容耦合的感測元件，該導電列或行已被激勵信號激勵。觸控筆可接著將表示電荷耦合之信號輸出至感測電路。
圖7說明作為感測電極之例示性主動式觸控筆700。觸控筆700可容納連接至在觸控筆之遠端處的電極702的感測電路704。感測電路704可感測電極702與電容性觸碰式感測 器面板之驅動線之間的電容耦合。
感測電路704可類似於在現有電容性觸碰式感測器面板中找到之彼等感測電路。圖8說明根據各種實施例之觸控筆700的例示性感測電路704。觸控筆感測電路704可包括放大器802，以接收一指示來自電極702之電容讀數的輸入信號並產生輸出信號804。另外，感測電路704可連接至內建於觸控筆中的電源706，諸如電池。在另一實施例中，可經由將觸控筆連接至另一電子器件(諸如，觸碰式感測器件)之纜線或經由電感耦合自該器件中之電源供應電力。在另一實施例中，觸控筆可包括說明於圖6中的感測電路610。在又一實施例中，觸控筆可包括連接至一或多個感測電路的多個感測電極。
充當感測電極之觸控筆(例如，圖7之觸控筆700)可大體上以與充當驅動電極之觸控筆(例如，圖2之觸控筆200)相反的方式起作用。詳言之，電容性觸碰式感測器面板可接收並發射激勵信號，當觸控筆與觸碰式感測器面板接觸(或暫留於電容性觸碰式感測器面板之上)時，該等激勵信號可誘發觸控筆上的電荷耦合，其可由觸控筆偵測到。
圖9說明經設計以用於與充當感測電極之觸控筆互動的例示性電容性觸碰式感測器面板900。如所說明，電容性觸碰式感測器面板900可包括驅動列(R0至R4)及驅動行(C0至C3)兩者。儘管在圖9中說明了五個列及四個行，但應理解，可基於(例如)觸碰式感測器面板之大小及觸碰式感測器面板的所要觸控解析度建置不同數目的驅動列及驅動 行。驅動列及驅動行可類似於在現有電容性觸碰式感測器面板中找到之驅動線。驅動列及驅動行可為導電的。驅動列及驅動行中之每一者可與觸控筆中之電極電容性耦合。驅動列及驅動行可形成於基板之同一表面上、基板之相反表面上，或兩個不同基板的表面上。在一些實施例中，觸碰式感測器面板900亦可如現有電容性觸碰式感測器面板一般包括感測行或感測列，以便允許觸碰式感測器面板偵測其他物件並保持現有電容性觸碰式感測器面板的其他功能性。
圖10說明圖7之主動式觸控筆與圖9之電容性觸碰式感測器面板的例示性耦合。如所說明，當觸控筆尖端與電容性觸碰式感測器面板900接觸(或緊密地接近於電容性觸碰式感測器面板900)時，如由電場線(統稱為1004)指示之電容性耦合可形成於經激勵之驅動行1008與尖端中的電極702之間。或者或另外，如由其他電場線(統稱為1005)指示之電容性耦合可形成於經激勵之驅動列1009與電極702之間。在一些實施例中，來自每一驅動列及驅動行之激勵信號可經不同地編碼。此情形可允許觸控筆中之感測電路704識別觸控筆中之電極702已電容耦合至的驅動列或驅動行。基於所識別之列及行，可判定觸控筆觸碰的位置。
由感測電路704擷取之觸碰資料可由觸控筆中之處理器處理，及/或傳輸回至觸碰式感測器面板以供進一步處理。在一些實施例中，可經由將觸控筆連接至觸碰式感測器面板之纜線或諸如WiFi及藍芽之無線頻通發送資訊。在 其他實施例中，如在為了所有目的以全文引用之方式併入本文中的先前提及之同在申請中的申請案(代理人案號106842042300)中所揭示，可將資訊編碼至自觸控筆傳輸至觸碰式感測器面板之脈衝信號中。此等通信實施例在圖7中可共同表示為通信區塊708。
在其他實施例中，充當觸碰感測系統中之感測電極的觸控筆可併有一或多個特徵，該等特徵揭示於亦為了所有目的以全文引用之方式併入本文中的其他先前提及之同在申請中的申請案(代理人案號106842042200及1068420425)中。
在一實施例中，主動式觸控筆可容納驅動電路及感測電路兩者，且可包括一耦接於兩個電路之間的用於根據觸控筆使用於之系統的要求在驅動與感測之間切換的切換機構。在另一實施例中，觸碰式感測器面板可驅動第一軸線(行或列)，且觸控筆可在該第一軸線上收聽。同時，觸控筆可驅動第二軸線，且觸碰式感測器面板可在該第二軸線上收聽。由觸碰式感測器面板及觸控筆擷取之觸碰資料可經組合以判定觸碰位置及其他觸碰相關資料。
以上實施例中揭示之主動式觸控筆可顯著改良觸碰感測系統中的觸控筆感測。因為此等觸控筆可包括經設計以與觸碰式感測器面板之驅動線及/或感測線主動電容性耦合而非阻斷觸碰式感測器面板上之電場線的電極，所以此等觸控筆可具有較小尖端，此情形可使得觸碰感測為更精準的。此外，在能夠判定在表面上偵測到之每一觸碰的區域 之觸碰式感測器面板上，可基於主動式觸控筆之較小觸碰區域而區分主動式觸控筆與其他觸碰物件。
另外，若觸控筆之尖端為小的，則軟體補償可校正觸碰路徑中之「擺動」。當觸碰路徑穿過觸碰式感測器面板上之並非直接在任何感測線上方或緊密接近於任何感測線的點時，可產生此等「擺動」。因為彼等點處之弱電容性耦合，因此由觸碰式感測器面板擷取之觸碰位置可為不準確的。現有的手指操作之觸碰式感測器面板可使用軟體演算法來校正觸碰路徑中的彼等「擺動」。然而，因為不同使用者可具有不同大小之手指，所以通用補償演算法可能不能良好地對來自不同手指之觸碰起作用。比較而言，來自上文揭示之實施例的主動式觸控筆可具有已知點源。因此，軟體補償演算法可經最佳化以對觸控筆之觸碰起作用以更好地減小觸碰路徑中的「擺動」。
儘管本文中依據觸控筆描述一些實施例，但應理解，根據各種實施例可使用其他輸入器件及/或指標器件。
儘管本文中依據觸碰式感測器面板描述了一些實施例，但應理解，根據各種實施例可使用其他能夠感測觸碰或暫留於觸敏式器件之上之物件的觸敏式器件。
圖11說明根據各種實施例之可使用觸控筆的例示性計算系統。在圖11之實例中，計算系統1600可包括觸碰控制器1606。觸碰控制器1606可為可包括一或多個處理器子系統1602之單一特殊應用積體電路(ASIC)，該等處理器子系統1602可包括一或多個主處理器，諸如ARM968處理器或具 有類似功能性及能力的其他處理器。然而，在其他實施例中，處理器功能性可替代地由諸如狀態機之專用邏輯來實施。處理器子系統1602亦可包括周邊裝置(未圖示)，諸如隨機存取記憶體(RAM)或其他類型之記憶體或儲存器、看門狗(watchdog)計時器及其類似者。觸碰控制器1606亦可包括接收區段1607，該接收區段1607用於接收信號，諸如一或多個感測通道(未圖示)之觸碰(或感測)信號1603、來自諸如感測器1611之其他感測器的其他信號等。觸碰控制器1606亦可包括：諸如多級向量解調變引擎之解調變區段1609、面板掃描邏輯1610及傳輸區段1614，該傳輸區段1614用於將激勵信號1616傳輸至觸碰式感測器面板1624以驅動面板。掃描邏輯1610可存取RAM 1612，自主地自感測通道讀取資料，且提供對感測通道之控制。此外，掃描邏輯1610可控制傳輸區段1614，以產生可選擇性地施加至觸碰式感測器面板1624之多個列的處於各種頻率及相位之激勵信號1616。
觸碰控制器1606亦可包括電荷泵1615，該電荷泵1615可用以產生用於傳輸區段1614的供電電壓。藉由將兩個電荷儲存器件(例如，電容器)級聯在一起以形成電荷泵1615，激勵信號1616可具有高於最高電壓之振幅。因此，與單一電容器可處置之電壓位準(例如，3.6 V)相比較，激勵電壓可為較高的(例如，6 V)。儘管圖11展示電荷泵1615與傳輸區段1614分離，但電荷泵可為傳輸區段之部分。
計算系統1600可包括主機處理器1628，該主機處理器 1628用於接收來自處理器子系統1602之輸出且基於該等輸出執行動作，該等動作可包括(但不限於)移動諸如游標或指標之物件、捲動或移動瀏覽、調整控制設定、開啟檔案或文件、檢視選單、做出選擇、執行指令、操作耦接至主機器件之周邊器件、接聽電話呼叫、撥打電話呼叫、終止電話呼叫、改變音量或音訊設定、儲存關於電話通信之資訊(諸如，地址、頻繁地撥出之號碼、已接電話、未接電話)、登入電腦或電腦網路、准許經授權之個人對電腦或電腦網路之受限制區域的存取、載入與電腦桌面之使用者之偏好配置相關聯的使用者設定檔、准許對網頁內容之存取、啟動特定程式、加密或解碼訊息，及/或其類似者。主機處理器1628亦可執行可能不與觸控處理相關之額外功能，且可連接至程式儲存器1632及諸如LCD之顯示器件1630，從而將UI提供至器件的使用者。當部分或完全位於觸碰式感測器面板之下時，顯示器件1630連同觸碰式感測器面板1624一起可形成觸控式螢幕。
觸碰式感測器面板1624可包括具有驅動線及感測線之電容性感測媒體。應注意，如熟習此項技術者可易於理解，術語「線」有時可在本文中用以僅意謂導電通路，且不限於可為嚴格地線性之結構，而是可包括改變方向之通路，且可包括具有不同大小、形狀、材料等之通路。驅動線可由激勵信號1616驅動，且產生於感測線中之所得觸碰信號1603可傳輸至觸碰控制器1606中的接收區段1607。以此方式，驅動線及感測線可為可相互作用以形成電容性感測節 點之觸碰及暫留感測電路的部分，該等節點可被看作觸控像元(觸控像素)，諸如觸控像素1626。當可將觸碰式感測器面板1624視為擷取觸碰之「影像」時，此理解方式可為特別有用的。換言之，在觸碰控制器1606已判定在觸碰式感測器面板中之每一觸控像素處是否已偵測到觸碰或暫留之後，觸碰式感測器面板中觸碰或暫留發生於之觸控像素的型樣可被看作觸碰之「影像」(例如，手指觸碰觸碰式感測器面板或暫留於觸碰式感測器面板之上的型樣)。
根據各種實施例之觸控筆可用以接觸觸碰式感測器面板1624。觸控筆定向可將額外資訊提供至計算系統1600以獲得改良之效能。
請注意，上文描述之功能中的一或多者可(例如)由儲存於記憶體(例如，周邊裝置中之一者)中且由處理器子系統1602執行或儲存於程式儲存器1632中且由主機處理器1628執行的韌體來執行。韌體亦可儲存於任何非暫時性電腦可讀儲存媒體內及/或在任何非暫時性電腦可讀儲存媒體內進行輸送，以供指令執行系統、裝置或器件使用或結合指令執行系統、裝置或器件來使用，該等指令執行系統、裝置或器件係諸如基於電腦之系統、含有處理器之系統或可自指令執行系統、裝置或器件獲取指令並執行該等指令的其他系統。在此文件之內容脈絡中，「非暫時性電腦可讀儲存媒體」可為可含有或儲存供指令執行系統、裝置或器件使用或結合指令執行系統、裝置或器件而使用之程式的任何媒體。非暫時性電腦可讀儲存媒體可包括(但不限於) 電子、磁性、光學、電磁、紅外線或半導體系統、裝置或器件，攜帶型電腦磁片(磁性)、隨機存取記憶體(RAM)(磁性)、唯讀記憶體(ROM)(磁性)、可抹除可程式化唯讀記憶體(EPROM)(磁性)、攜帶型光碟(諸如CD、CD-R、CD-RW、DVD、DVD-R或DVD-RW)，或快閃記憶體(諸如緊密快閃卡、安全數位卡、USB記憶體器件、記憶棒及其類似者)。
該韌體亦可在任何輸送媒體內進行傳播以供指令執行系統、裝置或器件使用或結合指令執行系統、裝置或器件而使用，指令執行系統、裝置或器件係諸如基於電腦之系統、含有處理器之系統，或可自該指令執行系統、裝置或器件獲取指令且執行該等指令的其他系統。在此文件之內容脈絡中，「輸送媒體」可為可傳達、傳播或輸送供指令執行系統、裝置或器件使用或結合指令執行系統、裝置或器件來使用之程式的任何媒體。輸送可讀媒體可包括(但不限於)電子、磁性、光學、電磁或紅外線有線或無線傳播媒體。
應理解，根據各種實施例，如在圖11中描述之觸碰式感測器面板可感測觸碰及暫留。此外，本文中描述之觸碰式感測器面板可為單點或多點觸碰式感測器面板。
圖12說明例示性行動電話1730，該行動電話1730可包括觸碰式感測器面板1724、顯示器件1736及用於與根據各種實施例之觸控筆一起使用的其他計算系統區塊。
圖13說明例示性數位媒體播放器1830，該數位媒體播放 器1830可包括觸碰式感測器面板1824、顯示器件1836及用於與根據各種實施例之觸控筆一起使用的其他計算系統區塊。
圖14說明例示性個人電腦1930，該個人電腦1930可包括觸控板1924、顯示器1936及用於與根據各種實施例之觸控筆一起使用的其他計算系統區塊。
圖12至圖14之行動電話、媒體播放器及個人電腦可藉由利用根據各種實施例之觸控筆改良觸碰及暫留感測，且節省電力。
本發明之一些實施例係針對一種主動式觸控筆，該主動式觸控筆包含：該觸控筆之一尖端處的一電極；及帶電電路，其耦接至該電極且經組態以電容性地耦合該電極與一電容性觸碰式感測器面板。在其他實施例中，該帶電電路包含：驅動電路，其經組態以在該電極處輸出一驅動電壓。在其他實施例中，該主動式觸控筆進一步包含一電源，該電源耦接至該帶電電路從而將電力供應至該帶電電路。在其他實施例中，該驅動電路進一步包含：一時鐘，其用以產生一驅動電壓；一微控制器，其連接至該時鐘且經組態以控制該驅動電壓；及一放大器，其連接至該微控制器且經組態以調整該驅動電壓。在其他實施例中，該帶電電路包含：感測電路，其經組態以感測在該電極處接收到之一電壓。在其他實施例中，該感測電路進一步包含一放大器以調整該所感測電壓。在其他實施例中，該感測電路進一步包含：一時鐘，其用以產生一解調變信號；一移 相器，其用以使該解調變信號之相位移位；及一組混頻器，其用以接收該所感測電壓及該解調變信號抑或該經移相之解調變信號以解調變該所感測電壓。在其他實施例中，接收該解調變信號的混頻器產生一同相分量；其中接收該經移相解調變信號的混頻器產生一正交分量；且其中該同相分量及該正交分量經組合以判定與由該電極形成之一電容成比例的振幅。在其他實施例中，該主動式觸控筆併入至一基於觸碰之輸入系統中，該系統包含：一電容性觸碰式感測器面板，其包括複數個感測線；及耦接至該複數個感測線之一或多個感測通道，該一或多個感測通道經組態以用於偵測該電極與一或多個感測線之間的一電容改變，從而判定該主動式觸控筆在該觸碰式感測器面板上之一觸碰的一位置。在其他實施例中，該電極以一頻率受到激勵以識別該觸控筆之存在。在其他實施例中，該電極以識別該觸控筆之一存在的一型樣受到激勵。在其他實施例中，該一或多個感測通道包含至少一列通道及至少一行通道。在其他實施例中，該主動式觸控筆進一步包含：一時鐘，其用以產生一驅動電壓；一微控制器，其連接至該時鐘且經組態以控制該驅動電壓；及一放大器，其連接至該微控制器且經組態以調整該驅動電壓。在其他實施例中，一或多個感測通道包含：一感測放大器，其用以調整電容性耦合之一偵測到之改變；一時鐘，其用以產生一解調變信號；一移相器，其用以使該解調變信號之一相位移位；及一組混頻器，其用以接收電容性耦合之該偵測到的改變 及該解調變信號抑或該經移相之解調變信號以解調變該所感測電壓。在其他實施例中，接收該解調變信號之混頻器產生一同相分量；其中接收該經移相解調變信號之混頻器產生一正交分量；且其中該同相分量及該正交分量經組合以判定與由該驅動通道及該感測通道形成之一電容成比例的振幅。在其他實施例中，該電容性觸碰式感測器面板經由一實體纜線及一無線頻道中的一者與該觸控筆通信。在其他實施例中，該電容性觸碰式感測器面板進一步包含經組態以產生一信號的至少一驅動線，該信號可由該等感測通道中之至少一者感測到。在其他實施例中，該主動式觸控筆併入至一基於觸碰之輸入系統中，該系統包含：包括複數個驅動線之一電容性觸碰式感測器面板；及耦接至該複數個驅動線之一或多個驅動通道，其中將由一驅動通道激勵之一驅動線的一身分用以判定該主動式觸控筆在該觸碰式感測器面板上之一觸碰的一位置。在其他實施例中，該觸控筆進一步包含一放大器以調整該所感測電壓。在其他實施例中，該觸控筆進一步包含：一時鐘，其用以產生一解調變信號；一移相器，其用以使該解調變信號之相位移位；及一組混頻器，其用以接收該所感測電壓及該解調變信號抑或該經移相之解調變信號以解調變該所感測信號。在其他實施例中，接收該解調變信號之混頻器產生一同相分量；其中接收該經移相解調變信號之混頻器產生一正交分量；且其中該同相分量及該正交分量經組合以判定與由一驅動通道與該電極形成之一電容成比例的振幅。在 其他實施例中，該電容性觸碰式感測器面板經由一實體纜線及一無線頻道中的一者與該觸控筆通信。在其他實施例中，可藉由一唯一碼來區分來自該等驅動通道中之每一者的一信號。
本發明之一些實施例係針對一種觸控筆觸碰偵測方法，其包含：藉由在該觸控筆中之一帶電電極與一觸碰式感測器面板之間形成一互電容來電容性耦合該帶電電極與該觸碰式感測器面板，以偵測該觸碰式感測器面板上的一觸控筆觸碰。在其他實施例中，該方法進一步包含：在該帶電電極處產生一激勵信號；及在該觸碰式感測器面板中之一感測線上偵測到一電容性耦合的激勵信號時偵測該觸碰式感測器面板上的該觸控筆觸碰。在其他實施例中，該方法進一步包含：在該觸碰式感測器面板中產生一激勵信號；及在該觸控筆中之一感測電路上偵測到一電容性耦合的激勵信號時偵測到該觸碰式感測器面板上的該觸控筆觸碰。
雖然已參考隨附圖式全面描述了實施例，但請注意，各種改變及修改對於熟習此項技術者將變得顯而易見。應將此等改變及修改理解為包括於如由附加申請專利範圍界定之各種實施例之範疇內。
100‧‧‧例示性電容性觸碰式感測器面板
102‧‧‧像素
104‧‧‧列跡線/列/電極
106‧‧‧行跡線/行/電極
108‧‧‧電場線
110‧‧‧介電質
112‧‧‧導電物件
114‧‧‧AC激勵Vstim
200‧‧‧例示性主動式觸控筆
202‧‧‧電極/尖端電極
204‧‧‧例示性驅動電路
206‧‧‧電源
306‧‧‧時鐘
308‧‧‧微控制器
310‧‧‧放大器
400‧‧‧例示性電容性觸碰式感測器面板
402‧‧‧感測電路
404‧‧‧電場線
406‧‧‧感測列
408‧‧‧感測行
610‧‧‧例示性感測電路
633‧‧‧混頻器
640‧‧‧時鐘
643‧‧‧同相分量
645‧‧‧移相器
670‧‧‧放大器
687‧‧‧混頻器
697‧‧‧正交分量
700‧‧‧例示性主動式觸控筆
702‧‧‧電極
704‧‧‧感測電路
706‧‧‧電源
708‧‧‧通信區塊
802‧‧‧放大器
804‧‧‧輸出信號
900‧‧‧例示性電容性觸碰式感測器面板
1004‧‧‧電場線
1005‧‧‧電場線
1008‧‧‧經激勵之驅動行
1009‧‧‧經激勵之驅動列
1600‧‧‧例示性計算系統
1602‧‧‧處理器子系統
1603‧‧‧觸碰信號/感測信號
1606‧‧‧觸碰控制器
1607‧‧‧接收區段
1609‧‧‧解調變區段
1610‧‧‧面板掃描邏輯
1611‧‧‧感測器
1612‧‧‧RAM
1614‧‧‧傳輸區段
1615‧‧‧電荷泵
1616‧‧‧激勵信號
1624‧‧‧觸碰式感測器面板
1626‧‧‧觸控像素
1628‧‧‧主機處理器
1630‧‧‧顯示器件
1632‧‧‧程式儲存器
1730‧‧‧例示性行動電話
1724‧‧‧觸碰式感測器面板
1736‧‧‧顯示器件
1830‧‧‧例示性數位媒體播放器
1824‧‧‧觸碰式感測器面板
1836‧‧‧顯示器件
1930‧‧‧例示性個人電腦
1924‧‧‧觸控板
1936‧‧‧顯示器
C0‧‧‧感測行
C1‧‧‧感測行
C2‧‧‧感測行
C3‧‧‧感測行
Cbody‧‧‧至接地之自電容
Csig‧‧‧穩態信號/互電容
Cstray‧‧‧雜散電容
R0‧‧‧感測列
R1‧‧‧感測列
R2‧‧‧感測列
R3‧‧‧感測列
R4‧‧‧感測列
圖1a說明例示性電容性觸碰式感測器面板之基礎結構。
圖1b及圖1c說明與例示性被動式觸控筆互動的圖1a之電容性觸碰式感測器面板。
圖2說明根據各種實施例之用於與電容性觸碰式感測器 面板一起使用之例示性主動式觸控筆。
圖3說明根據各種實施例之圖2之主動式觸控筆的例示性驅動電路。
圖4說明根據各種實施例之例示性電容性觸碰式感測器面板的結構。
圖5說明根據各種實施例的圖2之主動式觸控筆與圖4之觸碰式感測器面板之間的互動。
圖6說明根據各種實施例之圖4之觸碰式感測器面板的例示性感測電路。
圖7說明根據各種實施例之用於與電容性觸碰式感測器面板一起使用之另一例示性主動式觸控筆。
圖8說明根據各種實施例之圖7之主動式觸控筆的例示性感測電路。
圖9說明根據各種實施例之另一例示性觸碰式感測器面板的結構。
圖10說明根據各種實施例的圖7之主動式觸控筆與圖9之觸碰式感測器面板之間的互動。
圖11說明根據各種實施例之用於與觸控筆一起使用的例示性計算系統。
圖12說明根據各種實施例之用於與觸控筆一起使用的例示性行動電話。
圖13說明根據各種實施例之用於與觸控筆一起使用的例示性數位媒體播放器。
圖14說明根據各種實施例之用於與觸控筆一起使用的例 示性個人電腦。
200‧‧‧例示性主動式觸控筆
202‧‧‧電極/尖端電極
204‧‧‧例示性驅動電路
206‧‧‧電源

Claims (20)

  1. 一種主動式觸控筆，其包含：該觸控筆之一尖端處的一電極；及帶電電路，其耦接至該電極且經組態以電容性地耦合該電極與一電容性觸碰式感測器面板。
  2. 如請求項1之主動式觸控筆，其中該帶電電路包含：驅動電路，其經組態以在該電極處輸出一驅動電壓。
  3. 如請求項1之主動式觸控筆，其進一步包含一電源，該電源耦接至該帶電電路以將電力供應至該帶電電路。
  4. 如請求項2之主動式觸控筆，其中該驅動電路進一步包含：一時鐘，其用以產生一驅動電壓；一微控制器，其連接至該時鐘且經組態以控制該驅動電壓；及一放大器，其連接至該微控制器且經組態以調整該驅動電壓。
  5. 如請求項1之主動式觸控筆，其中該帶電電路包含：感測電路，其經組態以感測在該電極處接收到之一電壓。
  6. 如請求項5之主動式觸控筆，該感測電路進一步包含一放大器以調整該所感測電壓。
  7. 如請求項6之主動式觸控筆，其中該感測電路進一步包含：一時鐘，其用以產生一解調變信號； 一移相器，其用以使該解調變信號之相位移位；及一組混頻器，其用以接收該所感測電壓及該解調變信號抑或該經移相之解調變信號以解調變該所感測電壓。
  8. 如請求項7之主動式觸控筆，其中接收該解調變信號之該混頻器產生一同相分量；其中接收該經移相解調變信號之該混頻器產生一正交分量；及其中該同相分量及該正交分量經組合以判定與由該電極形成之一電容成比例的一振幅。
  9. 如請求項1之主動式觸控筆，該主動式觸控筆併入至一基於觸碰之輸入系統中，該系統包含：一電容性觸碰式感測器面板，其包括複數個感測線；及耦接至該複數個感測線之一或多個感測通道，該一或多個感測通道經組態以用於偵測該電極與一或多個感測線之間的一電容改變，從而判定該主動式觸控筆於該觸碰式感測器面板上之一觸碰的一位置。
  10. 如請求項9之主動式觸控筆，其中該電極係以一頻率受到激勵以識別該觸控筆之存在。
  11. 如請求項8之主動式觸控筆，其中該電極係以識別該觸控筆之一存在的一型樣受到激勵。
  12. 如請求項9之主動式觸控筆，其中該一或多個感測通道包含至少一列通道及至少一行通道。
  13. 如請求項9之主動式觸控筆，其中該主動式觸控筆進一步包含： 一時鐘，其用以產生一驅動電壓；一微控制器，其連接至該時鐘且經組態以控制該驅動電壓；及一放大器，其連接至該微控制器且經組態以調整該驅動電壓。
  14. 如請求項9之主動式觸控筆，其中一或多個感測通道包含：一感測放大器，其用以調整電容性耦合之一偵測到之改變；一時鐘，其用以產生一解調變信號；一移相器，其用以使該解調變信號之一相位移位；及一組混頻器，其用以接收電容性耦合之該偵測到的改變及該解調變信號抑或該經移相之解調變信號以解調變該所感測電壓。
  15. 如請求項14之主動式觸控筆，其中接收該解調變信號之該混頻器產生一同相分量；其中接收該經移相解調變信號之該混頻器產生一正交分量；及其中該同相分量及該正交分量經組合以判定與由該驅動通道及該感測通道形成之一電容成比例的一振幅。
  16. 如請求項9之主動式觸控筆，其中該電容性觸碰式感測器面板經由一實體纜線及一無線頻道中的一者與該觸控筆通信。
  17. 如請求項9之主動式觸控筆，其中該電容性觸碰式感測 器面板進一步包含經組態以產生一信號的至少一驅動線，該信號可由該等感測通道中之至少一者感測到。
  18. 一種觸控筆觸碰偵測方法，其包含：藉由在該觸控筆中之一帶電電極與一觸碰式感測器面板之間形成一互電容來電容性耦合該帶電電極與該觸碰式感測器面板，以偵測該觸碰式感測器面板上的一觸控筆觸碰。
  19. 如請求項18之方法，其進一步包含：在該帶電電極處產生一激勵信號；及在該觸碰式感測器面板中之一感測線上偵測到一電容性耦合的激勵信號時偵測到該觸碰式感測器面板上的該觸控筆觸碰。
  20. 如請求項19之方法，其進一步包含：在該觸碰式感測器面板中產生一激勵信號；及在該觸控筆中之一感測電路上偵測到一電容性耦合的激勵信號時偵測到該觸碰式感測器面板上的該觸控筆觸碰。
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104345920A (zh) * 2013-08-09 2015-02-11 义隆电子股份有限公司 电容触控笔的主动式控制方法及主动式电容触控笔
TWI488102B (zh) * 2013-06-20 2015-06-11 Focaltech Systems Ltd 電容式觸控螢幕
TWI510978B (zh) * 2014-01-28 2015-12-01 Kye Systems Corp 主動式觸控筆及其筆頭結構
TWI514230B (zh) * 2014-05-26 2015-12-21 Ite Tech Inc 電容式觸控面板之操作方法和電容式觸控感測器
TWI576741B (zh) * 2013-11-08 2017-04-01 禾瑞亞科技股份有限公司 數位解調變器及數位解調變方法
TWI655561B (zh) * 2017-08-07 2019-04-01 奇景光電股份有限公司 主動式手寫筆、觸控感測器以及用於主動式手寫筆與觸控感測器的訊號傳輸和感測方法
TWI658381B (zh) * 2018-03-09 2019-05-01 宏碁股份有限公司 觸控筆及其控制方法
TWI668601B (zh) * 2014-05-12 2019-08-11 日商和冠股份有限公司 主動式觸控筆及觸碰感測器之時序同步

Families Citing this family (175)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8089289B1 (en) 2007-07-03 2012-01-03 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
WO2009006557A1 (en) 2007-07-03 2009-01-08 Cypress Semiconductor Corporation Method for improving scan time and sensitivity in touch sensitive user interface device
US8570053B1 (en) 2007-07-03 2013-10-29 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
US8358142B2 (en) 2008-02-27 2013-01-22 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
US8319505B1 (en) 2008-10-24 2012-11-27 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
US8723825B2 (en) 2009-07-28 2014-05-13 Cypress Semiconductor Corporation Predictive touch surface scanning
US9069405B2 (en) 2009-07-28 2015-06-30 Cypress Semiconductor Corporation Dynamic mode switching for fast touch response
US8723827B2 (en) 2009-07-28 2014-05-13 Cypress Semiconductor Corporation Predictive touch surface scanning
US9310923B2 (en) 2010-12-03 2016-04-12 Apple Inc. Input device for touch sensitive devices
US9329703B2 (en) 2011-06-22 2016-05-03 Apple Inc. Intelligent stylus
US8638320B2 (en) 2011-06-22 2014-01-28 Apple Inc. Stylus orientation detection
US8928635B2 (en) 2011-06-22 2015-01-06 Apple Inc. Active stylus
US8878823B1 (en) 2011-07-27 2014-11-04 Cypress Semiconductor Corporation Dynamic shield electrode of a stylus
CN102915138B (zh) * 2011-08-05 2015-09-09 宸鸿光电科技股份有限公司 感测电极阵列控制电路、控制方法及其触控感测系统
US9110523B2 (en) 2011-09-08 2015-08-18 JCM Electronics Stylus, LLC Stylus and stylus circuitry for capacitive touch screens
US9507441B2 (en) 2011-09-08 2016-11-29 Jcm Electronic Stylus Llc Electronic stylus with low skew tip for capacitive touch screens
US10162400B2 (en) 2011-10-28 2018-12-25 Wacom Co., Ltd. Power management system for active stylus
US9690431B2 (en) 2011-10-28 2017-06-27 Atmel Corporation Locking active stylus and touch-sensor device
US10082889B2 (en) 2011-10-28 2018-09-25 Atmel Corporation Multi-electrode active stylus tip
US9389701B2 (en) 2011-10-28 2016-07-12 Atmel Corporation Data transfer from active stylus
US8581886B2 (en) 2011-10-28 2013-11-12 Atmel Corporation Tuning algorithm for noise reduction in an active stylus
US9606641B2 (en) 2015-03-09 2017-03-28 Atmel Corporation Adaptive transmit voltage in active stylus
US11347330B2 (en) 2011-10-28 2022-05-31 Wacom Co., Ltd. Adaptive transmit voltage in active stylus
US10423248B2 (en) 2011-10-28 2019-09-24 Wacom Co., Ltd. Touch-sensitive system with motion filtering
US9116558B2 (en) 2011-10-28 2015-08-25 Atmel Corporation Executing gestures with active stylus
US10725563B2 (en) 2011-10-28 2020-07-28 Wacom Co., Ltd. Data transfer from active stylus to configure a device or application
US9160331B2 (en) 2011-10-28 2015-10-13 Atmel Corporation Capacitive and inductive sensing
US20130106771A1 (en) * 2011-10-28 2013-05-02 Atmel Corporation Active-Stylus Nib with Rolling-Ball Tip
US9164603B2 (en) 2011-10-28 2015-10-20 Atmel Corporation Executing gestures with active stylus
US9389707B2 (en) 2011-10-28 2016-07-12 Atmel Corporation Active stylus with configurable touch sensor
US9182856B2 (en) 2011-10-28 2015-11-10 Atmel Corporation Capacitive force sensor
US8866767B2 (en) 2011-10-28 2014-10-21 Atmel Corporation Active stylus with high voltage
US9874920B2 (en) 2011-10-28 2018-01-23 Atmel Corporation Power management system for active stylus
US9946408B2 (en) 2011-10-28 2018-04-17 Atmel Corporation Communication between a master active stylus and a slave touch-sensor device
US8872792B2 (en) * 2011-10-28 2014-10-28 Atmel Corporation Active stylus with energy harvesting
US9280218B2 (en) 2011-10-28 2016-03-08 Atmel Corporation Modulating drive signal for communication between active stylus and touch-sensor device
US8947379B2 (en) * 2011-10-28 2015-02-03 Atmel Corporation Inductive charging for active stylus
US9557833B2 (en) 2011-10-28 2017-01-31 Atmel Corporation Dynamic adjustment of received signal threshold in an active stylus
US9459709B2 (en) 2011-10-28 2016-10-04 Atmel Corporation Scaling voltage for data communication between active stylus and touch-sensor device
US9086745B2 (en) * 2011-10-28 2015-07-21 Atmel Corporation Dynamic reconfiguration of electrodes in an active stylus
US9189121B2 (en) 2011-10-28 2015-11-17 Atmel Corporation Active stylus with filter having a threshold
US9354728B2 (en) 2011-10-28 2016-05-31 Atmel Corporation Active stylus with capacitive buttons and sliders
US10725564B2 (en) 2011-10-28 2020-07-28 Wacom Co., Ltd. Differential sensing in an active stylus
US9965107B2 (en) 2011-10-28 2018-05-08 Atmel Corporation Authenticating with active stylus
US9164598B2 (en) 2011-10-28 2015-10-20 Atmel Corporation Active stylus with surface-modification materials
US9250719B2 (en) 2011-10-28 2016-02-02 Atmel Corporation Active stylus with filter
US8797287B2 (en) 2011-10-28 2014-08-05 Atmel Corporation Selective scan of touch-sensitive area for passive or active touch or proximity input
US8933899B2 (en) 2011-10-28 2015-01-13 Atmel Corporation Pulse- or frame-based communication using active stylus
US9110543B1 (en) * 2012-01-06 2015-08-18 Steve Dabell Method and apparatus for emulating touch and gesture events on a capacitive touch sensor
US9013429B1 (en) 2012-01-14 2015-04-21 Cypress Semiconductor Corporation Multi-stage stylus detection
US20130207926A1 (en) 2012-02-15 2013-08-15 Viktor Kremin Stylus to host synchronization
EP2845083A4 (en) * 2012-04-29 2016-01-13 Jcm Electronic Stylus Llc STYLET AND PEN CIRCUITRY FOR CAPACITIVE TOUCH SCREENS
US9236861B2 (en) 2012-07-02 2016-01-12 Stmicroelectronics Asia Pacific Pte Ltd Capacitive proximity sensor with enabled touch detection
US9176597B2 (en) 2012-07-02 2015-11-03 Stmicroelectronics Asia Pacific Pte Ltd Directional capacitive proximity sensor with bootstrapping
US9557845B2 (en) 2012-07-27 2017-01-31 Apple Inc. Input device for and method of communication with capacitive devices through frequency variation
DE102012014910A1 (de) * 2012-07-27 2014-01-30 Volkswagen Aktiengesellschaft Bedienschnittstelle, Verfahren zum Anzeigen einer eine Bedienung einer Bedienschnittstelle erleichternden Information und Programm
US9176604B2 (en) 2012-07-27 2015-11-03 Apple Inc. Stylus device
US9652090B2 (en) 2012-07-27 2017-05-16 Apple Inc. Device for digital communication through capacitive coupling
US9164629B2 (en) 2012-08-06 2015-10-20 Stmicroelectronics Asia Pacific Pte Ltd Touch screen panel with slide feature
TW201407351A (zh) * 2012-08-08 2014-02-16 Chunghwa Picture Tubes Ltd 多觸控螢幕裝置和操作多觸控螢幕裝置的方法
US20140062968A1 (en) * 2012-08-29 2014-03-06 Ten One Design Llc Measurement of signal generated by contact of input device with surface
US20140062966A1 (en) * 2012-09-05 2014-03-06 Research In Motion Limited Stylus Having a Flexibly-Resilient Tip
US9921626B2 (en) * 2012-09-28 2018-03-20 Atmel Corporation Stylus communication with near-field coupling
US9335872B2 (en) * 2012-10-01 2016-05-10 Stmicroelectronics Asia Pacific Pte Ltd Hybrid stylus for use in touch screen applications
US9841862B2 (en) * 2012-10-16 2017-12-12 Atmel Corporation Stylus position system
US9958966B2 (en) * 2012-10-16 2018-05-01 Atmel Corporation Active stylus communication and position system
US10031590B2 (en) * 2012-10-16 2018-07-24 Atmel Corporation Active stylus with a parallel communication channel
US10013096B2 (en) * 2012-10-18 2018-07-03 Atmel Corporation Touch sensor with simultaneously driven drive electrodes
US9158393B2 (en) 2012-12-18 2015-10-13 Logitech Europe S.A. Active stylus for touch sensing applications
US20140168140A1 (en) 2012-12-18 2014-06-19 Logitech Europe S.A. Method and system for discriminating stylus and touch interactions
DE102013101306A1 (de) 2013-02-11 2014-08-14 Andreas Erzigkeit Individuelle Erkennung von Objekten durch Touchpad
JP5572851B1 (ja) * 2013-02-26 2014-08-20 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 電子機器
US9188965B2 (en) 2013-03-06 2015-11-17 Arris Technology, Inc. Control device including a protocol translator
US10048775B2 (en) * 2013-03-14 2018-08-14 Apple Inc. Stylus detection and demodulation
CN105144042B (zh) * 2013-03-15 2019-03-29 触觉实验室股份有限公司 快速多触摸笔和传感器
BR112015023133A2 (pt) 2013-03-15 2017-07-18 Tactual Labs Co caneta stylus e sensor de multitoque rápido
US9035919B2 (en) * 2013-03-15 2015-05-19 Microchip Technology Incorporated Electrostatics stylus
AU2014232460A1 (en) * 2013-03-15 2015-09-24 Tactual Labs Co. Active optical stylus and sensor
CN105144041A (zh) * 2013-03-15 2015-12-09 触觉实验室股份有限公司 有源光笔与传感器
US9823758B2 (en) 2013-04-10 2017-11-21 Nvidia Corporation Automatic performance of touch screen related functionality in response to detected stylus position
CN103793082A (zh) * 2013-04-24 2014-05-14 深圳市国显科技股份有限公司 一种毛笔式电容笔及其触控系统
US9256330B2 (en) * 2013-05-22 2016-02-09 Qualcomm Technologies, Inc. Capacitive touch panel configured to sense both active and passive input with a single sensor
US20150029136A1 (en) * 2013-07-29 2015-01-29 Apple Inc. Superheterodyne pen stimulus signal receiver
US10845901B2 (en) 2013-07-31 2020-11-24 Apple Inc. Touch controller architecture
US20150054783A1 (en) * 2013-08-22 2015-02-26 Microchip Technology Incorporated Touch Screen Stylus with Communication Interface
US9529525B2 (en) 2013-08-30 2016-12-27 Nvidia Corporation Methods and apparatus for reducing perceived pen-to-ink latency on touchpad devices
KR102108915B1 (ko) * 2013-08-30 2020-05-12 엘지전자 주식회사 터치 패널
US9823728B2 (en) 2013-09-04 2017-11-21 Nvidia Corporation Method and system for reduced rate touch scanning on an electronic device
TWI484385B (zh) * 2013-09-09 2015-05-11 Henghao Technology Co Ltd 觸控面板及其使用方法
KR102111274B1 (ko) * 2013-09-26 2020-05-15 엘지디스플레이 주식회사 터치 센싱 시스템과 그 구동 방법
US9737242B2 (en) * 2013-10-01 2017-08-22 The Cleveland Clinic Foundation Object recognition by touch screen
US9881592B2 (en) 2013-10-08 2018-01-30 Nvidia Corporation Hardware overlay assignment
CN104615262A (zh) 2013-11-01 2015-05-13 辉达公司 一种用于虚拟键盘的输入方法和输入系统
US9298285B2 (en) * 2013-12-05 2016-03-29 Wacom Co., Ltd. Stylus tip shape
US9507470B2 (en) 2013-12-16 2016-11-29 Nvidia Corporation Method and system for reduced power touch input detection on an electronic device using reduced scanning
US9436325B2 (en) 2013-12-20 2016-09-06 Synaptics Incorporated Active pen for matrix sensor
US9329708B2 (en) 2014-01-08 2016-05-03 Microsoft Technology Licensing, Llc Display system with electrostatic and radio links
US9753562B2 (en) * 2014-01-15 2017-09-05 Nokia Technologies Oy Dynamic threshold for local connectivity setup
US9671877B2 (en) 2014-01-27 2017-06-06 Nvidia Corporation Stylus tool with deformable tip
USD751072S1 (en) 2014-02-18 2016-03-08 Merge Labs, Inc. Mobile head mounted display
EP3108287A4 (en) 2014-02-18 2017-11-08 Merge Labs, Inc. Head mounted display goggles for use with mobile computing devices
KR102180236B1 (ko) * 2014-02-20 2020-11-18 삼성전자 주식회사 전자 장치의 입력 처리 방법 및 장치
US9971421B2 (en) 2014-03-06 2018-05-15 Stmicroelectronics Asia Pacific Pte Ltd System and method for improved synchronization between devices
US9772696B2 (en) * 2014-03-06 2017-09-26 Stmicroelectronics Asia Pacific Pte Ltd System and method for phase error compensation in synchronized devices
CN103927028B (zh) * 2014-04-30 2017-12-19 广州视源电子科技股份有限公司 实现电磁触摸笔侧边按键功能的方法
US9465456B2 (en) * 2014-05-20 2016-10-11 Apple Inc. Reduce stylus tip wobble when coupled to capacitive sensor
US9454272B2 (en) 2014-05-22 2016-09-27 Stmicroelectronics Asia Pacific Pte Ltd Touch screen for stylus emitting wireless signals
US9606680B1 (en) 2014-06-12 2017-03-28 Amazon Technologies, Inc. Capacitive communication between stylus devices and computing devices
US9542014B1 (en) 2014-06-12 2017-01-10 Amazon Technologies, Inc. Low power detection of stylus touch down
US9632598B1 (en) 2014-06-12 2017-04-25 Amazon Technologies, Inc. Stylus devices with configurable frequency
US9632597B2 (en) 2014-06-12 2017-04-25 Amazon Technologies, Inc. Configurable active stylus devices
US9763087B2 (en) 2014-07-14 2017-09-12 Microsoft Technology Licensing, Llc Cryptographic key exchange over an electrostatic channel
WO2016015211A1 (zh) * 2014-07-28 2016-02-04 华为技术有限公司 触控方法及电容式触控设备
USD764465S1 (en) * 2014-08-09 2016-08-23 Wavesine Solutions Inc. Wireless cantilever head mounted display with adjustable optical system
US9703433B2 (en) 2014-08-18 2017-07-11 Stmicroelectronics Asia Pacific Pte Ltd System and method of communication between a capacitive touch screen and an active stylus
KR20160025440A (ko) * 2014-08-27 2016-03-08 삼성전자주식회사 터치 패널 및 이를 구비한 좌표 측정 시스템
EP2998834B1 (en) 2014-08-27 2020-01-22 Samsung Electronics Co., Ltd. Touch panel
KR102318024B1 (ko) * 2014-11-12 2021-10-27 삼성전자 주식회사 입력을 처리하는 방법 및 이를 제공하는 전자 장치
US9557868B2 (en) 2014-11-21 2017-01-31 Apple Inc. Noise reduction for touch sensor system with active stylus
US10180736B2 (en) * 2014-11-26 2019-01-15 Synaptics Incorporated Pen with inductor
US10067618B2 (en) 2014-12-04 2018-09-04 Apple Inc. Coarse scan and targeted active mode scan for touch
EP3227764B1 (en) 2014-12-07 2019-04-17 Microsoft Technology Licensing, LLC Stylus for operating a digitizer system
US9830000B2 (en) 2014-12-12 2017-11-28 Microsoft Technology Licensing, Llc Active stylus synchronization
US10175827B2 (en) 2014-12-23 2019-01-08 Synaptics Incorporated Detecting an active pen using a capacitive sensing device
WO2016108216A1 (en) * 2015-01-04 2016-07-07 Microsoft Technology Licensing, Llc Active stylus communication with a digitizer
USD760701S1 (en) 2015-02-20 2016-07-05 Merge Labs, Inc. Mobile head mounted display controller
USD755789S1 (en) 2015-02-20 2016-05-10 Merge Labs, Inc. Mobile head mounted display
CN113534980B (zh) * 2015-03-02 2024-03-12 株式会社和冠 方法、主动式触控笔以及传感器控制器
US9924019B2 (en) 2015-05-15 2018-03-20 Microsoft Technology Licensing, Llc Automatic device pairing
US9658704B2 (en) 2015-06-10 2017-05-23 Apple Inc. Devices and methods for manipulating user interfaces with a stylus
CN114489392A (zh) * 2015-06-29 2022-05-13 株式会社和冠 传感器控制器及触控笔
US9928398B2 (en) * 2015-08-17 2018-03-27 Invensense, Inc. Always-on sensor device for human touch
CN105045416A (zh) * 2015-08-24 2015-11-11 深圳市新鹏科技有限公司 一种用于触摸显示屏的触控笔
WO2017040609A1 (en) * 2015-08-31 2017-03-09 E Ink Corporation Electronically erasing a drawing device
US10168804B2 (en) 2015-09-08 2019-01-01 Apple Inc. Stylus for electronic devices
US10025401B2 (en) * 2015-09-08 2018-07-17 Apple Inc. Active stylus ring electrode
US9720546B2 (en) 2015-09-15 2017-08-01 Microsoft Technology Licensing, Llc Calibration of a force sensitive device
US10037112B2 (en) 2015-09-30 2018-07-31 Synaptics Incorporated Sensing an active device'S transmission using timing interleaved with display updates
CN106560767A (zh) * 2015-09-30 2017-04-12 群光电子股份有限公司 主动式触控笔及其使用方法
US10671190B2 (en) 2015-10-02 2020-06-02 Microsoft Technology Licensing, Llc Stylus pen with dynamic protocol selection for communication with a digitizer
CN107357446B (zh) * 2015-12-17 2021-04-16 禾瑞亚科技股份有限公司 有线主动触控笔
WO2017101090A1 (zh) * 2015-12-18 2017-06-22 郑胜豁 具连续点击功能的主动式触控笔
US10048777B2 (en) 2016-02-24 2018-08-14 Apple Inc. Adaptive make/break detection for a stylus touch device
US10514803B2 (en) 2016-03-06 2019-12-24 Microsoft Technology Licensing, Llc Pen in field force sensing calibration
US10254857B2 (en) 2016-03-06 2019-04-09 Microsoft Technology Licensing, Llc Soft touch detection of a stylus
CN107390897B (zh) * 2016-03-08 2020-07-03 禾瑞亚科技股份有限公司 侦测倾斜角与笔身轴向的触控控制装置与其控制方法
US10133416B2 (en) * 2016-05-13 2018-11-20 Tactual Labs Co. Signal detection in frequency division modulated touch systems
CA168403S (en) 2016-05-13 2017-07-24 Wavesine Solutions Inc Head mounted display visor
US10637933B2 (en) 2016-05-26 2020-04-28 Logitech Europe S.A. Method and apparatus for transferring information between electronic devices
US10474277B2 (en) 2016-05-31 2019-11-12 Apple Inc. Position-based stylus communication
US11896368B2 (en) 2016-08-31 2024-02-13 Apple Inc. Systems and methods for determining swimming metrics
BR112019003561B1 (pt) 2016-08-31 2022-11-22 Apple Inc Sistema e método para melhorar uma exatidão de um dispositivo para ser usado junto ao corpo e determinar um movimento do braço de um usuário
US10261604B2 (en) 2016-11-04 2019-04-16 Microsoft Technology Licensing, Llc Active stylus velocity correction
US10126874B2 (en) 2016-11-08 2018-11-13 Synaptics Incorporated Active pen panel receiver interference cancellation
US10572063B2 (en) 2017-01-09 2020-02-25 Microsoft Technology Licensing, Llc Position, tilt, and twist detection for stylus
CN106843545A (zh) * 2017-02-21 2017-06-13 宇昶半导体股份有限公司 主动式触控笔及其控制方法
US10579168B2 (en) 2017-03-30 2020-03-03 Microsoft Technology Licensing, Llc Dual LED drive circuit
US11051720B2 (en) 2017-06-01 2021-07-06 Apple Inc. Fitness tracking for constrained-arm usage
TWI631486B (zh) 2017-06-16 2018-08-01 華碩電腦股份有限公司 觸控筆
US10963098B1 (en) 2017-09-29 2021-03-30 Apple Inc. Methods and apparatus for object profile estimation
CN118092684A (zh) 2018-07-06 2024-05-28 株式会社和冠 主动笔
US10719148B2 (en) 2018-07-10 2020-07-21 Microsoft Technology Licensing, Llc Coupling a pen device to a companion device based on pen proximity
EP3637231B1 (en) * 2018-08-13 2023-05-10 Shenzhen Goodix Technology Co., Ltd. Signal transmitting method, signal receiving method and device
US10783226B2 (en) 2018-09-04 2020-09-22 Dell Products L.P. System and method of utilizing a stylus
US11334174B2 (en) 2019-07-18 2022-05-17 Eyal Shlomot Universal pointing and interacting device
CN112640288B (zh) * 2019-08-08 2024-01-23 深圳市汇顶科技股份有限公司 一种正负压打码电路、芯片、主动笔以及打码方法
US11937904B2 (en) 2019-09-09 2024-03-26 Apple Inc. Detecting the end of cardio machine activities on a wearable device
DE202019004235U1 (de) 2019-09-18 2019-11-22 Pengsquare UG (haftungsbeschränkt) Objekt für die Interaktion mit berührungsempfindlichen Anzeigen und Oberflächen
US12109453B2 (en) 2019-09-27 2024-10-08 Apple Inc. Detecting outdoor walking workouts on a wearable device
CN111124161B (zh) * 2019-12-30 2023-04-28 深圳市千分一智能技术有限公司 触控笔功耗控制电路及电容式触控笔
KR102186177B1 (ko) * 2020-02-28 2020-12-03 주식회사 에이코닉 터치 센서 및 그의 구동 방법
US11562638B2 (en) 2020-08-24 2023-01-24 Logitech Europe S.A. Electronic system and method for improving human interaction and activities
US11592932B2 (en) 2021-03-15 2023-02-28 Stmicroelectronics Asia Pacific Pte Ltd. Position detection in rollable displays
US11946742B2 (en) 2021-07-13 2024-04-02 Stmicroelectronics Asia Pacific Pte Ltd. Angle detection of hinges in rollable devices
KR20240033560A (ko) 2022-09-05 2024-03-12 삼성전자주식회사 전자 장치, 액티브 스타일러스 펜 및 그 동기화 방법

Family Cites Families (550)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259438B1 (en) 1998-06-04 2001-07-10 Wacom Co., Ltd. Coordinate input stylus
US3462692A (en) * 1967-03-27 1969-08-19 Bliss Co Pedestrian detection system
US3970846A (en) 1973-10-29 1976-07-20 Xenex Corporation Presence detecting system with self-checking
JPS5574635A (en) 1978-11-30 1980-06-05 Tohoku Richo Kk Light pen
US4220815B1 (en) 1978-12-04 1996-09-03 Elographics Inc Nonplanar transparent electrographic sensor
DE2907811B1 (de) 1979-02-28 1980-03-20 Agfa Gevaert Ag Funktionseingabeeinheit mit Beruehrungstasten
US4320292A (en) 1979-08-22 1982-03-16 Nippon Telegraph And Telephone Public Corporation Coordinate input apparatus
US4289927A (en) 1979-11-13 1981-09-15 Kurta Corporation Graphic communication apparatus
JPS5685792A (en) 1979-12-14 1981-07-13 Citizen Watch Co Ltd Liquid crystal display unit
US4281407A (en) * 1979-12-14 1981-07-28 Rca Corporation Surface acoustic wave pickup and recording device
US4484179A (en) 1980-04-16 1984-11-20 At&T Bell Laboratories Touch position sensitive surface
JPS56158381A (en) 1980-05-12 1981-12-07 Suwa Seikosha Kk Liquid crystal display unit
FR2496949B1 (fr) 1980-12-23 1987-05-15 Thomson Csf Dispositif electro-optique de commutation
JPS57141177A (en) 1981-02-26 1982-09-01 Matsushita Electric Ind Co Ltd Video camera with monitor
JPS57203129A (en) 1981-06-09 1982-12-13 Sanyo Electric Co Ltd Light pen and picture processing device using this light pen
US4439855A (en) 1981-08-12 1984-03-27 Rca Corporation Capacitive playback stylus
US4476463A (en) 1981-08-24 1984-10-09 Interaction Systems, Inc. Display device having unpatterned touch detection
US4454417A (en) 1982-02-05 1984-06-12 George A. May High resolution light pen for use with graphic displays
US4542375A (en) 1982-02-11 1985-09-17 At&T Bell Laboratories Deformable touch sensitive surface
US5650637A (en) 1982-04-30 1997-07-22 Seiko Epson Corporation Active matrix assembly
EP0097384B1 (de) 1982-06-18 1987-01-28 Koninklijke Philips Electronics N.V. Flüssigkristallanzeigevorrichtung
JPS5910988A (ja) 1982-07-12 1984-01-20 ホシデン株式会社 カラ−液晶表示器
US4490607A (en) 1982-07-22 1984-12-25 Igt Pinhole objective fibre optic light pen
US4520357A (en) 1982-07-23 1985-05-28 General Electric Company Electroscopic information display and entry system with writing stylus
US4785564A (en) 1982-12-20 1988-11-22 Motorola Inc. Electronic notepad
JPS6045219A (ja) 1983-08-23 1985-03-11 Toshiba Corp アクテイブマトリクス型表示装置
JPH0654960B2 (ja) 1983-10-20 1994-07-20 シチズン時計株式会社 液晶表示装置の駆動方法
JPS60179823A (ja) 1984-02-27 1985-09-13 Hitachi Ltd ライトペン
US4655552A (en) 1984-03-17 1987-04-07 Citizen Watch Co., Ltd. Flat panel display device having on-screen data input function
US4603356A (en) 1984-03-19 1986-07-29 Energy Conversion Devices, Inc. Imaging system with light valve and photodetector
US4671671A (en) 1984-06-18 1987-06-09 Casio Computer Co., Ltd. Small electronic apparatus with optical input device
JPS616729A (ja) 1984-06-20 1986-01-13 Sharp Corp 情報入出力装置
US4917474A (en) 1984-09-10 1990-04-17 Semiconductor Energy Laboratory Co., Ltd. Optoelectronic panel and method of making the same
JPS6182466A (ja) 1984-09-29 1986-04-26 Toshiba Corp 光センサ
US4814760A (en) 1984-12-28 1989-03-21 Wang Laboratories, Inc. Information display and entry device
US4782327A (en) 1985-01-02 1988-11-01 Victor B. Kley Computer control
US4602321A (en) 1985-02-28 1986-07-22 Vari-Lite, Inc. Light source having automatically variable hue, saturation and beam divergence
US4642459A (en) 1985-05-17 1987-02-10 International Business Machines Corporation Light pen input system having two-threshold light sensing
US4677428A (en) 1985-06-07 1987-06-30 Hei, Inc. Cordless light pen
US4736203A (en) 1985-07-17 1988-04-05 Recognition Systems, Inc. 3D hand profile identification apparatus
US4904056A (en) 1985-07-19 1990-02-27 General Electric Company Light blocking and cell spacing for liquid crystal matrix displays
US4794634A (en) 1985-12-24 1988-12-27 Kabushiki Kaisha Komatsu Seisakusho Position-sensitive photodetector and light transmissive tablet and light-emitting pen
US4705942A (en) 1985-12-26 1987-11-10 American Telephone And Telegraph Company, At&T Bell Laboratories Pressure-sensitive light pen
DE3602796A1 (de) 1986-01-30 1987-08-06 Messerschmitt Boelkow Blohm Sensorelement mit einem gedaechtnis fuer anormale aenderungen der einfallenden lichtintensitaet
US4720869A (en) 1986-02-18 1988-01-19 International Business Machines Corporation Hand dimension verification
DE3787583T2 (de) 1986-07-07 1994-02-03 Semiconductor Energy Lab Tragbares Buch ohne Papier.
US4698460A (en) 1986-08-26 1987-10-06 Tektronix, Inc. Touch panel system
US4782328A (en) 1986-10-02 1988-11-01 Product Development Services, Incorporated Ambient-light-responsive touch screen data input method and system
US4767192A (en) 1986-10-31 1988-08-30 International Business Machines Corporation Light activated light valve with a silicon control element
US4772101A (en) 1986-11-07 1988-09-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Remotely controllable real-time optical processor
DE3639008A1 (de) 1986-11-14 1988-05-19 Bosch Gmbh Robert Anzeigegeraet mit fluessigkristallzelle, vorzugsweise fuer kraftfahrzeuge
US4893120A (en) 1986-11-26 1990-01-09 Digital Electronics Corporation Touch panel using modulated light
JPH0666018B2 (ja) 1987-01-09 1994-08-24 株式会社日立製作所 液晶プロジェクション装置
US4749879A (en) 1987-06-18 1988-06-07 Spectra-Physics, Inc. Signal transition detection method and system
US6069393A (en) 1987-06-26 2000-05-30 Canon Kabushiki Kaisha Photoelectric converter
JPS646927U (zh) 1987-06-30 1989-01-17
JPS6440004U (zh) 1987-09-07 1989-03-09
US5032883A (en) 1987-09-09 1991-07-16 Casio Computer Co., Ltd. Thin film transistor and method of manufacturing the same
FR2623019B1 (fr) 1987-11-10 1990-05-11 Thomson Csf Dispositif de prise d'image radiologique
GB2213303B (en) 1987-12-02 1992-01-08 Gen Electric Co Plc Liquid crystal displays
JPH01196620A (ja) 1988-02-01 1989-08-08 Seiko Epson Corp タッチパネル
US4877697A (en) 1988-05-26 1989-10-31 Hoechst Aktiengesellschaft Color filter array for liquid crystal display device
JPH02123626A (ja) 1988-11-01 1990-05-11 Mitsubishi Electric Corp 光スイツチ装置
JPH02182581A (ja) 1989-01-10 1990-07-17 Mazda Motor Corp サスペンションとステアリングの総合制御装置
US5051570A (en) 1989-01-20 1991-09-24 Nec Corporation Liquid crystal light valve showing an improved display contrast
JP2816979B2 (ja) 1989-02-13 1998-10-27 日本フィリップス株式会社 入力機能付き表示装置
FI85543C (fi) 1989-11-03 1992-04-27 Marttila Heikki Oy Kopplingskrets foer kontaktdisplaypanel.
JPH02278326A (ja) 1989-04-19 1990-11-14 Sharp Corp 情報入出力装置
US5339090A (en) 1989-06-23 1994-08-16 Northern Telecom Limited Spatial light modulators
FI85544C (fi) 1989-11-03 1992-04-27 Marttila Heikki Oy Koppling foer kompensering av verkan av yttre ljus pao infraroedkaensliga fototransistorer i kontaktdisplaypaneler.
NL9000290A (nl) 1990-02-07 1991-09-02 Philips Nv Weergeefinrichting.
EP0450780A3 (en) 1990-04-05 1992-04-15 Matsushita Electric Industrial Co., Ltd. Optical microelement array and its production method
US5105186A (en) 1990-05-25 1992-04-14 Hewlett-Packard Company Lcd touch screen
JP2616160B2 (ja) 1990-06-25 1997-06-04 日本電気株式会社 薄膜電界効果型トランジスタ素子アレイ
GB2245708A (en) 1990-06-29 1992-01-08 Philips Electronic Associated Touch sensor array systems
US6067062A (en) 1990-09-05 2000-05-23 Seiko Instruments Inc. Light valve device
US5083175A (en) 1990-09-21 1992-01-21 Xerox Corporation Method of using offset gated gap-cell thin film device as a photosensor
JPH04133313A (ja) 1990-09-25 1992-05-07 Semiconductor Energy Lab Co Ltd 半導体作製方法
DE4032860A1 (de) 1990-10-12 1992-04-16 Zeiss Carl Fa Kraftgesteuerter kontaktapplikator fuer laserstrahlung
US5445871A (en) 1990-10-30 1995-08-29 Kansai Paint Co., Ltd. Surface-modified plastic plate
US5239152A (en) 1990-10-30 1993-08-24 Donnelly Corporation Touch sensor panel with hidden graphic mode
US5117071A (en) 1990-10-31 1992-05-26 International Business Machines Corporation Stylus sensing system
TW237562B (zh) 1990-11-09 1995-01-01 Semiconductor Energy Res Co Ltd
US5153420A (en) 1990-11-28 1992-10-06 Xerox Corporation Timing independent pixel-scale light sensing apparatus
GB9026040D0 (en) 1990-11-30 1991-01-16 Philips Electronic Associated Addressable matrix device
US5204661A (en) 1990-12-13 1993-04-20 Xerox Corporation Input/output pixel circuit and array of such circuits
GB9027481D0 (en) 1990-12-19 1991-02-06 Philips Electronic Associated Matrix display device with write-in facility
US5113041A (en) * 1990-12-28 1992-05-12 At&T Bell Laboratories Information processing
ES2090497T3 (es) 1991-03-08 1996-10-16 Nat Starch Chem Invest Dispositivo visualizador de cristal liquido.
GB9108226D0 (en) 1991-04-17 1991-06-05 Philips Electronic Associated Optical touch input device
JPH04321273A (ja) 1991-04-19 1992-11-11 Fuji Xerox Co Ltd イメージセンサ
EP0511644B1 (en) 1991-05-01 1997-07-23 Matsushita Electric Industrial Co., Ltd. Solid-state image pickup device
US5341133A (en) 1991-05-09 1994-08-23 The Rowland Institute For Science, Inc. Keyboard having touch sensor keys for conveying information electronically
US5235363A (en) 1991-05-10 1993-08-10 Nview Corporation Method and apparatus for interacting with a computer generated projected image
JPH0519233A (ja) 1991-07-15 1993-01-29 Fujitsu Ltd 液晶表示装置
KR930002974A (ko) 1991-07-29 1993-02-23 권영기 가변분해능식 펜형스캐너
US5243332A (en) 1991-10-31 1993-09-07 Massachusetts Institute Of Technology Information entry and display
US5751453A (en) 1991-12-06 1998-05-12 Ncr Corporation Liquid crystal display with pen-input capability
US5243452A (en) 1991-12-06 1993-09-07 Ncr Corporation Liquid crystal display with pen-input capability
US5610629A (en) 1991-12-06 1997-03-11 Ncr Corporation Pen input to liquid crystal display
JPH05173707A (ja) 1991-12-20 1993-07-13 Sharp Corp 手書き入力タブレット
WO1993013449A1 (en) 1991-12-26 1993-07-08 Osd Envizion Company Eye protection device for welding helmets and the like
JP2863363B2 (ja) 1992-01-24 1999-03-03 シャープ株式会社 表示装置
JPH06194687A (ja) 1992-10-30 1994-07-15 Nec Corp 透過型アクティブマトリクス型液晶素子
US5485019A (en) 1992-02-05 1996-01-16 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and method for forming the same
US5483261A (en) 1992-02-14 1996-01-09 Itu Research, Inc. Graphical input controller and method with rear screen image detection
JPH05243547A (ja) 1992-03-02 1993-09-21 Hitachi Ltd 薄膜光センサ
WO1993018428A2 (en) 1992-03-13 1993-09-16 Kopin Corporation Head-mounted display system
EP0563477A1 (en) 1992-03-25 1993-10-06 Visage Inc. Touch screen sensing apparatus
US5381251A (en) 1992-04-07 1995-01-10 Sharp Kabushiki Kaisha Optical switch element and a liquid crystal light directional coupler used in the optical switch element
JPH0688968A (ja) 1992-04-07 1994-03-29 Sharp Corp 光導波路、それを用いる光入力装置、これらを用いた表示装置及びこれらの製造方法
US5365461A (en) 1992-04-30 1994-11-15 Microtouch Systems, Inc. Position sensing computer input device
GB9209734D0 (en) 1992-05-06 1992-06-17 Philips Electronics Uk Ltd An image sensor
JP2837578B2 (ja) 1992-05-20 1998-12-16 シャープ株式会社 画像入出力装置および方法
US5355149A (en) 1992-05-27 1994-10-11 Spacelabs Medical, Inc. Scanning system for touch screen keyboards
JP3140837B2 (ja) 1992-05-29 2001-03-05 シャープ株式会社 入力一体型表示装置
JP3139134B2 (ja) 1992-06-03 2001-02-26 カシオ計算機株式会社 液晶表示装置
CA2097360A1 (en) 1992-06-03 1993-12-04 Paul Dvorkis Optical readers
US5880411A (en) 1992-06-08 1999-03-09 Synaptics, Incorporated Object position detector with edge motion feature and gesture recognition
US5488204A (en) 1992-06-08 1996-01-30 Synaptics, Incorporated Paintbrush stylus for capacitive touch sensor pad
GB9220104D0 (en) 1992-09-07 1992-11-04 Philips Electronics Uk Ltd Matrix display device with light sensing function
KR950004378B1 (ko) 1992-09-09 1995-04-28 주식회사금성사 위치감지액정표시소자및제조방법
JP2774424B2 (ja) 1992-12-07 1998-07-09 シャープ株式会社 画像入力一体型表示装置
JPH06342146A (ja) 1992-12-11 1994-12-13 Canon Inc 画像表示装置、半導体装置及び光学機器
US5581378A (en) 1993-02-01 1996-12-03 University Of Alabama At Huntsville Electro-optical holographic display
US6133906A (en) 1993-03-15 2000-10-17 Microtouch Systems, Inc. Display-integrated stylus detection system
EP0618527B1 (en) 1993-03-29 1999-09-29 NCR International, Inc. Input means for liquid crystal display
JP3358744B2 (ja) 1993-05-06 2002-12-24 シャープ株式会社 液晶表示装置
GB9313841D0 (en) 1993-07-05 1993-08-18 Philips Electronics Uk Ltd An electro-optic device
US5414283A (en) 1993-11-19 1995-05-09 Ois Optical Imaging Systems, Inc. TFT with reduced parasitic capacitance
US5608390A (en) 1994-02-23 1997-03-04 At&T Global Information Solutions Company Synchronous telemetry channel
US5736980A (en) * 1994-04-28 1998-04-07 Sharp Kabushiki Kaisha Coordinate inputting apparatus with shared line combinations of power, position and switch signals
JP3186946B2 (ja) * 1994-05-31 2001-07-11 シャープ株式会社 座標検出装置
US5771039A (en) 1994-06-06 1998-06-23 Ditzik; Richard J. Direct view display device integration techniques
US5635982A (en) 1994-06-27 1997-06-03 Zhang; Hong J. System for automatic video segmentation and key frame extraction for video sequences having both sharp and gradual transitions
GB9414639D0 (en) 1994-07-20 1994-09-07 Philips Electronics Uk Ltd An image detector
JPH08106358A (ja) * 1994-08-10 1996-04-23 Fujitsu Ltd タブレット機能付き液晶表示装置、アクティブマトリクス型液晶表示装置及びタブレット機能付き液晶表示装置の駆動方法
US5812109A (en) 1994-08-23 1998-09-22 Canon Kabushiki Kaisha Image input/output apparatus
US5917464A (en) 1994-10-18 1999-06-29 Xerox Corporation Combination of 2-D detector array with display for image processing
TW274598B (en) * 1994-11-15 1996-04-21 Alps Electric Co Ltd Coordinate input device for pen of finger tip
US5652600A (en) 1994-11-17 1997-07-29 Planar Systems, Inc. Time multiplexed gray scale approach
US6049428A (en) 1994-11-18 2000-04-11 Optiva, Inc. Dichroic light polarizers
JPH08166849A (ja) 1994-12-15 1996-06-25 Kanegafuchi Chem Ind Co Ltd タッチパネル用プラスチック積層シート及びプラスチック基板タッチパネル
EP1130536B1 (en) 1994-12-16 2004-04-28 Hyundai Electronics America Digitizer stylus apparatus and method
US5559471A (en) 1994-12-21 1996-09-24 Motorola, Inc. Amplifier and biasing circuit therefor
FI103837B1 (fi) 1994-12-22 1999-09-30 Nokia Mobile Phones Ltd Tiedonsiirto- ja käsittelymenetelmä
US5796473A (en) 1995-03-20 1998-08-18 Honda Giken Kogyo Kabushiki Kaisha Method of adjusting optical axis of headlight of vehicle
US6300977B1 (en) 1995-04-07 2001-10-09 Ifire Technology Inc. Read-out circuit for active matrix imaging arrays
US5818553A (en) 1995-04-10 1998-10-06 Norand Corporation Contrast control for a backlit LCD
JP3698803B2 (ja) * 1995-04-12 2005-09-21 シャープ株式会社 座標入力装置
JPH08297286A (ja) 1995-04-26 1996-11-12 Internatl Business Mach Corp <Ibm> 液晶表示装置
US5962856A (en) 1995-04-28 1999-10-05 Sunnybrook Hospital Active matrix X-ray imaging array
TW327707B (en) 1995-05-18 1998-03-01 Motorola Inc Method for producing power consumption in a portable electronic device with a liquid crystal display screen
US5942761A (en) 1995-06-07 1999-08-24 Tuli; Raja Singh Enhancement methods and devices for reading a fingerprint image
US5502514A (en) 1995-06-07 1996-03-26 Nview Corporation Stylus position sensing and digital camera with a digital micromirror device
JP3377884B2 (ja) 1995-06-13 2003-02-17 株式会社エクセディ 板金製ドラムの歯形成形装置
DE19522272A1 (de) 1995-06-20 1997-01-09 Bosch Gmbh Robert Laservibrometer für Schwingungsmessungen
US5877735A (en) 1995-06-23 1999-03-02 Planar Systems, Inc. Substrate carriers for electroluminescent displays
US5956020A (en) 1995-07-27 1999-09-21 Microtouch Systems, Inc. Touchscreen controller with pen and/or finger inputs
GB9516441D0 (en) 1995-08-10 1995-10-11 Philips Electronics Uk Ltd Light pen input systems
JPH09106320A (ja) 1995-08-24 1997-04-22 Symbios Logic Inc 図形入力装置および図形入力方法
US5990988A (en) 1995-09-01 1999-11-23 Pioneer Electric Corporation Reflection liquid crystal display and a semiconductor device for the display
US5767623A (en) 1995-09-11 1998-06-16 Planar Systems, Inc. Interconnection between an active matrix electroluminescent display and an electrical cable
US5793342A (en) 1995-10-03 1998-08-11 Planar Systems, Inc. Resonant mode active matrix TFEL display excitation driver with sinusoidal low power illumination input
US5712528A (en) 1995-10-05 1998-01-27 Planar Systems, Inc. Dual substrate full color TFEL panel with insulator bridge structure
US5847690A (en) 1995-10-24 1998-12-08 Lucent Technologies Inc. Integrated liquid crystal display and digitizer having a black matrix layer adapted for sensing screen touch location
US5818956A (en) 1995-10-23 1998-10-06 Tuli; Raja Singh Extended fingerprint reading apparatus
US5940049A (en) 1995-10-23 1999-08-17 Polycom, Inc. Remote interactive projector with image enhancement
US5734491A (en) 1996-05-30 1998-03-31 Eastman Kodak Company Electro-optic modulator with threshold bias
US6320617B1 (en) 1995-11-07 2001-11-20 Eastman Kodak Company CMOS active pixel sensor using a pinned photo diode
US5777596A (en) 1995-11-13 1998-07-07 Symbios, Inc. Touch sensitive flat panel display
JPH09185457A (ja) 1995-12-28 1997-07-15 Sharp Corp タッチパネル及びそれを用いた入力機能付き表示装置
US5920309A (en) 1996-01-04 1999-07-06 Logitech, Inc. Touch sensing method and apparatus
US5825352A (en) 1996-01-04 1998-10-20 Logitech, Inc. Multiple fingers contact sensing method for emulating mouse buttons and mouse operations on a touch sensor pad
JPH09203890A (ja) 1996-01-25 1997-08-05 Sharp Corp 入力機能付き液晶表示素子および反射型入力機能付き液晶表示素子、並びにそれらの製造方法
US5831693A (en) 1996-02-22 1998-11-03 Honeywell Integrated light sensor for an active matrix liquid crystal display panel
JPH09231002A (ja) 1996-02-27 1997-09-05 Sharp Corp タッチパネル一体型液晶表示素子
WO1997035297A2 (en) 1996-03-18 1997-09-25 Philips Electronics N.V. Display device
US5914708A (en) 1996-04-04 1999-06-22 Cirque Corporation Computer input stylus method and apparatus
US5818037A (en) 1996-04-09 1998-10-06 Tv Interactive Data Corporation Controller using a flexible element to vary light transferred to a photosensitive element
US6399166B1 (en) 1996-04-15 2002-06-04 Optiva, Inc. Liquid crystal display and method
DE69623659T2 (de) 1996-05-08 2003-05-08 Ifire Technology Inc., Fort Saskatchewan Hochauflösender flacher sensor für strahlungsabbildungssystem
DE19720925B4 (de) 1996-05-29 2004-08-26 Nawotec Gmbh Einrichtung zur Eingabe von Informationen mittels eines sich der Einrichtung nähernden Gegenstandes
US5920360A (en) 1996-06-07 1999-07-06 Electronic Data Systems Corporation Method and system for detecting fade transitions in a video signal
US5778108A (en) 1996-06-07 1998-07-07 Electronic Data Systems Corporation Method and system for detecting transitional markers such as uniform fields in a video signal
US5959697A (en) 1996-06-07 1999-09-28 Electronic Data Systems Corporation Method and system for detecting dissolve transitions in a video signal
US5835079A (en) 1996-06-13 1998-11-10 International Business Machines Corporation Virtual pointing device for touchscreens
JPH1027068A (ja) 1996-07-12 1998-01-27 Sumitomo Bakelite Co Ltd 透明タッチパネル及び透明タッチパネル用フィルム
JPH1040004A (ja) 1996-07-22 1998-02-13 Ricoh Co Ltd 入力タッチパネル付き液晶表示装置
US6271813B1 (en) 1996-08-30 2001-08-07 Lear Automotive Dearborn, Inc. Voltage control for adjusting the brightness of a screen display
JPH10133817A (ja) 1996-11-01 1998-05-22 Techno Print Kk ガラスタッチパネル
JPH10133819A (ja) 1996-11-01 1998-05-22 Matsushita Electric Ind Co Ltd タッチパネルおよびその製造方法
JP3854392B2 (ja) 1996-11-11 2006-12-06 同和鉱業株式会社 光学的フィルター
JP3422640B2 (ja) * 1996-11-14 2003-06-30 シャープ株式会社 座標検出機能付き表示装置
KR100393039B1 (ko) 1996-11-20 2003-10-17 삼성에스디아이 주식회사 액정표시소자
US6061177A (en) 1996-12-19 2000-05-09 Fujimoto; Kenneth Noboru Integrated computer display and graphical input apparatus and method
US5995172A (en) 1997-01-02 1999-11-30 Nec Corporation Tablet integrated liquid crystal display apparatus with less parallax
JPH10198515A (ja) 1997-01-08 1998-07-31 Nippon Avionics Co Ltd タッチ入力機能付き表示装置
US6037609A (en) 1997-01-17 2000-03-14 General Electric Company Corrosion resistant imager
GB9702991D0 (en) 1997-02-13 1997-04-02 Philips Electronics Nv Array of photosensitive pixels
US6067140A (en) 1997-03-03 2000-05-23 Lg Electronics Inc. Liquid crystal display device and method of manufacturing same
US5914709A (en) 1997-03-14 1999-06-22 Poa Sana, Llc User input device for a computer system
US5796121A (en) 1997-03-25 1998-08-18 International Business Machines Corporation Thin film transistors fabricated on plastic substrates
US6118435A (en) 1997-04-10 2000-09-12 Idec Izumi Corporation Display unit with touch panel
US5930591A (en) 1997-04-23 1999-07-27 Litton Systems Canada Limited High resolution, low voltage flat-panel radiation imaging sensors
US6741655B1 (en) 1997-05-05 2004-05-25 The Trustees Of Columbia University In The City Of New York Algorithms and system for object-oriented content-based video search
US6431984B2 (en) 1997-06-03 2002-08-13 Christopher R. Coyer Security systems for use in gaming tables and methods therefor
JP3876942B2 (ja) 1997-06-13 2007-02-07 株式会社ワコム 光デジタイザ
US5834765A (en) 1997-07-08 1998-11-10 Ledalite Architectural Products, Inc. Integral ambient light and occupancy sensor having a linear array of sensor element and a segmented slit aperture device
US7154153B1 (en) 1997-07-29 2006-12-26 Micron Technology, Inc. Memory device
JP3394187B2 (ja) * 1997-08-08 2003-04-07 シャープ株式会社 座標入力装置および表示一体型座標入力装置
JPH11110110A (ja) 1997-09-29 1999-04-23 Mitsui Chem Inc タッチパネル用透明導電性フィルム
JP4044187B2 (ja) 1997-10-20 2008-02-06 株式会社半導体エネルギー研究所 アクティブマトリクス型表示装置およびその作製方法
US6028581A (en) 1997-10-21 2000-02-22 Sony Corporation Method and apparatus for a liquid crystal display (LCD) having an input function
GB9722766D0 (en) 1997-10-28 1997-12-24 British Telecomm Portable computers
US6377249B1 (en) 1997-11-12 2002-04-23 Excel Tech Electronic light pen system
US6087599A (en) 1997-11-24 2000-07-11 The Whitaker Corporation Touch panels having plastic substrates
US6078378A (en) 1997-11-24 2000-06-20 Industrial Technology Research Institute Liquid crystal display with pixels having an opening formed from a photosensitive resin with spacers attached
EP0919850B1 (en) 1997-11-25 2008-08-27 NEC LCD Technologies, Ltd. Active matrix liquid-crystal display device and method for making the same
GB9725571D0 (en) 1997-12-04 1998-02-04 Philips Electronics Nv Electronic apparatus comprising fingerprint sensing devices
US6310610B1 (en) 1997-12-04 2001-10-30 Nortel Networks Limited Intelligent touch display
US6163313A (en) 1997-12-12 2000-12-19 Aroyan; James L. Touch sensitive screen and method
US5990980A (en) 1997-12-23 1999-11-23 Sarnoff Corporation Detection of transitions in video sequences
JP3649907B2 (ja) 1998-01-20 2005-05-18 シャープ株式会社 二次元画像検出器およびその製造方法
US6184873B1 (en) 1998-01-20 2001-02-06 Electronics For Imaging, Inc. Pen positioning system
US6020590A (en) 1998-01-22 2000-02-01 Ois Optical Imaging Systems, Inc. Large area imager with UV blocking layer
US6364829B1 (en) 1999-01-26 2002-04-02 Newton Laboratories, Inc. Autofluorescence imaging system for endoscopy
US6323846B1 (en) 1998-01-26 2001-11-27 University Of Delaware Method and apparatus for integrating manual input
US7663607B2 (en) 2004-05-06 2010-02-16 Apple Inc. Multipoint touchscreen
US8479122B2 (en) 2004-07-30 2013-07-02 Apple Inc. Gestures for touch sensitive input devices
JPH11307756A (ja) 1998-02-20 1999-11-05 Canon Inc 光電変換装置および放射線読取装置
JP4577734B2 (ja) 1998-02-24 2010-11-10 Ｄｏｗａホールディングス株式会社 低反射型抵抗膜式タッチパネルおよびその製造方法
US6323490B1 (en) 1998-03-20 2001-11-27 Kabushiki Kaisha Toshiba X-ray semiconductor detector
JP3549039B2 (ja) 1998-03-23 2004-08-04 シャープ株式会社 二次元画像検出器
US6182892B1 (en) 1998-03-25 2001-02-06 Compaq Computer Corporation Smart card with fingerprint image pass-through
US6552745B1 (en) 1998-04-08 2003-04-22 Agilent Technologies, Inc. CMOS active pixel with memory for imaging sensors
IL124333A0 (en) 1998-05-05 1998-12-06 El Mul Technologies Ltd Charges particle detector
JP4651193B2 (ja) * 1998-05-12 2011-03-16 イー インク コーポレイション ドローイングデバイス用途のためのマイクロカプセル化した電気泳動性の静電的にアドレスした媒体
JPH11326954A (ja) 1998-05-15 1999-11-26 Semiconductor Energy Lab Co Ltd 半導体装置
CN1232902C (zh) 1998-06-04 2005-12-21 株式会社华科姆 坐标输入记录笔及图形坐标输入系统
JP2000020241A (ja) 1998-06-26 2000-01-21 Sumitomo Chem Co Ltd タッチパネル
JP2000081608A (ja) 1998-06-29 2000-03-21 Sanyo Electric Co Ltd 集光機構付液晶表示装置
US6188391B1 (en) 1998-07-09 2001-02-13 Synaptics, Inc. Two-layer capacitive touchpad and method of making same
US6188781B1 (en) 1998-07-28 2001-02-13 Digital Persona, Inc. Method and apparatus for illuminating a fingerprint through side illumination of a platen
KR100394023B1 (ko) 1998-08-06 2003-10-17 엘지.필립스 엘시디 주식회사 반투과 반사형 액정표시장치
US7268774B2 (en) 1998-08-18 2007-09-11 Candledragon, Inc. Tracking motion of a writing instrument
US6278444B1 (en) 1998-08-21 2001-08-21 Geoffrey D. Wilson Low current four-wire interface for five-wire resistive touch-screen
US6326956B1 (en) 1998-08-24 2001-12-04 Intertactile Technologies Corporation Circuit control devices utilizing electronic display screen light
JP2000076014A (ja) * 1998-08-27 2000-03-14 Pentel Kk 静電容量式タッチパネル装置
JP4016526B2 (ja) 1998-09-08 2007-12-05 富士ゼロックス株式会社 ３次元物体識別装置
JP3732956B2 (ja) 1998-09-16 2006-01-11 三洋電機株式会社 反射型液晶表示装置
US6972753B1 (en) 1998-10-02 2005-12-06 Semiconductor Energy Laboratory Co., Ltd. Touch panel, display device provided with touch panel and electronic equipment provided with display device
US6184863B1 (en) 1998-10-13 2001-02-06 The George Washington University Direct pointing apparatus and method therefor
US6278423B1 (en) 1998-11-24 2001-08-21 Planar Systems, Inc Active matrix electroluminescent grey scale display
JP4542637B2 (ja) 1998-11-25 2010-09-15 セイコーエプソン株式会社 携帯情報機器及び情報記憶媒体
JP2000162624A (ja) 1998-11-26 2000-06-16 Sanyo Electric Co Ltd 反射型液晶表示装置
DE69911641T2 (de) 1998-11-27 2004-08-05 Synaptics (Uk) Ltd., Harston Positionssensor
US6295113B1 (en) 1998-12-16 2001-09-25 Picvue Electronics, Ltd. Twisted nematic color liquid crystal display
US6597348B1 (en) 1998-12-28 2003-07-22 Semiconductor Energy Laboratory Co., Ltd. Information-processing device
JP3658227B2 (ja) 1999-01-20 2005-06-08 シャープ株式会社 画像読取装置
US6181394B1 (en) 1999-01-22 2001-01-30 White Electronic Designs, Corp. Super bright low reflection liquid crystal display
US20020030768A1 (en) 1999-03-15 2002-03-14 I-Wei Wu Integrated high resolution image sensor and display on an active matrix array with micro-lens
JP4372260B2 (ja) 1999-03-17 2009-11-25 シャープ株式会社 液晶パネルの製造方法
JP3663075B2 (ja) 1999-04-05 2005-06-22 シャープ株式会社 情報処理装置
US7707082B1 (en) 1999-05-25 2010-04-27 Silverbrook Research Pty Ltd Method and system for bill management
US6380559B1 (en) 1999-06-03 2002-04-30 Samsung Electronics Co., Ltd. Thin film transistor array substrate for a liquid crystal display
US6681034B1 (en) 1999-07-15 2004-01-20 Precise Biometrics Method and system for fingerprint template matching
US6453008B1 (en) 1999-07-29 2002-09-17 Kabushiki Kaisha Toshiba Radiation detector noise reduction method and radiation detector
JP3678065B2 (ja) 1999-08-19 2005-08-03 株式会社デンソー 集積化フォトセンサ
US6504530B1 (en) 1999-09-07 2003-01-07 Elo Touchsystems, Inc. Touch confirming touchscreen utilizing plural touch sensors
US6265792B1 (en) 1999-09-08 2001-07-24 Endosonics Corporation Medical device having precision interconnect
EP1085320A1 (en) 1999-09-13 2001-03-21 Interuniversitair Micro-Elektronica Centrum Vzw A device for detecting an analyte in a sample based on organic materials
US6351076B1 (en) 1999-10-06 2002-02-26 Tohoku Pioneer Corporation Luminescent display panel drive unit and drive method thereof
AU1338101A (en) 1999-10-29 2001-05-14 Digilens Inc. Display system utilizing ambient light and a dedicated light source
JP2001134256A (ja) 1999-11-05 2001-05-18 Sony Corp ディスプレイ装置の利用者検出回路
ATE512547T1 (de) 1999-11-08 2011-06-15 Casio Computer Co Ltd Ansteuerungsverfahren für photosensorsystem
EP1153405B1 (en) 1999-12-10 2006-09-13 Koninklijke Philips Electronics N.V. Electronic devices including micromechanical switches
KR100341462B1 (ko) 1999-12-18 2002-06-21 안준영 지문인식기가 내장된 정보단말기
JP4332964B2 (ja) 1999-12-21 2009-09-16 ソニー株式会社 情報入出力システム及び情報入出力方法
US7157649B2 (en) 1999-12-23 2007-01-02 New Transducers Limited Contact sensitive device
US20040252867A1 (en) 2000-01-05 2004-12-16 Je-Hsiung Lan Biometric sensor
US7609862B2 (en) 2000-01-24 2009-10-27 Pen-One Inc. Method for identity verification
US6529189B1 (en) 2000-02-08 2003-03-04 International Business Machines Corporation Touch screen stylus with IR-coupled selection buttons
EP1128170A1 (en) 2000-02-25 2001-08-29 Telefonaktiebolaget L M Ericsson (Publ) Photodiode bias circuit
US6465824B1 (en) 2000-03-09 2002-10-15 General Electric Company Imager structure
EP1146487A2 (en) 2000-04-14 2001-10-17 Biocentric Solutions, Inc. Optical and smart card identification reader
US7859519B2 (en) 2000-05-01 2010-12-28 Tulbert David J Human-machine interface
KR100771258B1 (ko) 2000-05-09 2007-10-29 가부시키가이샤 한도오따이 에네루기 켄큐쇼 본인 인증 시스템과 본인 인증 방법 및 휴대 전화 장치
US6864882B2 (en) 2000-05-24 2005-03-08 Next Holdings Limited Protected touch panel display system
US7536557B2 (en) 2001-03-22 2009-05-19 Ensign Holdings Method for biometric authentication through layering biometric traits
GB0014962D0 (en) 2000-06-20 2000-08-09 Koninkl Philips Electronics Nv Matrix array display devices with light sensing elements and associated storage capacitors
GB0014961D0 (en) 2000-06-20 2000-08-09 Koninkl Philips Electronics Nv Light-emitting matrix array display devices with light sensing elements
US6803906B1 (en) 2000-07-05 2004-10-12 Smart Technologies, Inc. Passive touch system and method of detecting user input
US6690156B1 (en) 2000-07-28 2004-02-10 N-Trig Ltd. Physical object location apparatus and method and a graphic display device using the same
JP2002057312A (ja) 2000-08-08 2002-02-22 Denso Corp 光検出センサおよびその製造方法
US7430025B2 (en) 2000-08-23 2008-09-30 Semiconductor Energy Laboratory Co., Ltd. Portable electronic device
AU2001288902A1 (en) 2000-09-07 2002-03-22 Healthetech, Inc. Portable computing apparatus particularly useful in a weight management program
FR2814281B1 (fr) 2000-09-19 2003-08-29 Thomson Lcd Matrice active tft pour capteur optique comportant une couche semi-conductrice photosensible, et capteur optique comportant une telle matrice
US7050094B2 (en) 2000-10-26 2006-05-23 Micron Technology, Inc. Wide dynamic range operation for CMOS sensor with freeze-frame shutter
WO2002061668A1 (en) 2000-12-05 2002-08-08 Arete Associates, A California Corporation Linear contact sensor apparatus and method for use in imaging features of an object
CN1252576C (zh) 2000-12-15 2006-04-19 丁系统有限责任公司 笔形光鼠标装置及其控制方法
JP2002207565A (ja) 2000-12-19 2002-07-26 Internatl Business Mach Corp <Ibm> 入力システム、電子入力装置、デジタイザ入力用筆記具、デジタイザ、座標入力方法、座標情報伝送方法、および記憶媒体
US6762741B2 (en) 2000-12-22 2004-07-13 Visteon Global Technologies, Inc. Automatic brightness control system and method for a display device using a logarithmic sensor
US7190348B2 (en) 2000-12-26 2007-03-13 International Business Machines Corporation Method for touchscreen data input
US6714270B2 (en) 2001-01-15 2004-03-30 Kabushiki Kaisha Toshiba Transflective liquid crystal display
US6357939B1 (en) 2001-02-02 2002-03-19 Hewlett-Packard Company Method of and apparatus for handheld printing of images on a media
US20020149571A1 (en) 2001-04-13 2002-10-17 Roberts Jerry B. Method and apparatus for force-based touch input
US7629945B2 (en) 2001-05-11 2009-12-08 Xerox Corporation Mixed resolution displays
CN1227619C (zh) 2001-05-11 2005-11-16 阿诺托知识产权许可贸易公司 电子笔、启动和停止启动电子笔的方法
WO2002093467A1 (en) 2001-05-11 2002-11-21 Anoto Ab Electronic pen with actuation through removal of cap
JP3800984B2 (ja) 2001-05-21 2006-07-26 ソニー株式会社 ユーザ入力装置
JP2002359310A (ja) 2001-05-30 2002-12-13 Matsushita Electric Ind Co Ltd 半導体装置、及びその製造方法
FR2826766B1 (fr) 2001-06-29 2003-10-31 Thales Avionics Lcd Matrice active de transistors en couches minces ou tft pour capteur optique ou ecran de visualisation
US6862022B2 (en) 2001-07-20 2005-03-01 Hewlett-Packard Development Company, L.P. Method and system for automatically selecting a vertical refresh rate for a video display monitor
US6590239B2 (en) 2001-07-30 2003-07-08 Taiwan Semiconductor Manufacturing Co., Ltd. Color filter image array optoelectronic microelectronic fabrication with a planarizing layer formed upon a concave surfaced color filter region
US6847351B2 (en) 2001-08-13 2005-01-25 Siemens Information And Communication Mobile, Llc Tilt-based pointing for hand-held devices
US6947017B1 (en) 2001-08-29 2005-09-20 Palm, Inc. Dynamic brightness range for portable computer displays based on ambient conditions
JP3987729B2 (ja) * 2001-09-11 2007-10-10 シャープ株式会社 入出力一体型表示装置
DE10146996A1 (de) 2001-09-25 2003-04-30 Gerd Reime Schaltung mit einer optoeleketronischen Anzeigeeinhalt
JP2003173237A (ja) 2001-09-28 2003-06-20 Ricoh Co Ltd 情報入出力システム、プログラム及び記憶媒体
GB2381644A (en) 2001-10-31 2003-05-07 Cambridge Display Tech Ltd Display drivers
US6762752B2 (en) 2001-11-29 2004-07-13 N-Trig Ltd. Dual function input device and method
TWI222029B (en) 2001-12-04 2004-10-11 Desun Technology Co Ltd Two-in-one image display/image capture apparatus and the method thereof and identification system using the same
US6679702B1 (en) 2001-12-18 2004-01-20 Paul S. Rau Vehicle-based headway distance training system
US6690387B2 (en) 2001-12-28 2004-02-10 Koninklijke Philips Electronics N.V. Touch-screen image scrolling system and method
US7348946B2 (en) 2001-12-31 2008-03-25 Intel Corporation Energy sensing light emitting diode display
US6720594B2 (en) 2002-01-07 2004-04-13 Xerox Corporation Image sensor array with reduced pixel crosstalk
US6703599B1 (en) 2002-01-30 2004-03-09 Microsoft Corporation Proximity sensor with adaptive threshold
US6720942B2 (en) 2002-02-12 2004-04-13 Eastman Kodak Company Flat-panel light emitting pixel with luminance feedback
US7006080B2 (en) 2002-02-19 2006-02-28 Palm, Inc. Display system
US7023503B2 (en) 2002-02-20 2006-04-04 Planar Systems, Inc. Image sensor with photosensitive thin film transistors
US7053967B2 (en) 2002-05-23 2006-05-30 Planar Systems, Inc. Light sensitive display
WO2003073159A1 (en) 2002-02-20 2003-09-04 Planar Systems, Inc. Light sensitive display
US7009663B2 (en) 2003-12-17 2006-03-07 Planar Systems, Inc. Integrated optical light sensitive active matrix liquid crystal display
KR100500692B1 (ko) 2002-03-12 2005-07-12 비오이 하이디스 테크놀로지 주식회사 화상 표시 모드와 지문 인식 모드를 모두 수행하는 액정디스플레이 장치
KR100500691B1 (ko) 2002-03-12 2005-07-12 비오이 하이디스 테크놀로지 주식회사 화상 표시 모드와 지문 인식 모드를 모두 수행하는 액정디스플레이 장치
KR100436376B1 (ko) 2002-03-29 2004-06-19 테스텍 주식회사 접촉발광소자와 ｔｆｔ 지문입력기를 이용한 슬림형지문인식장치
JP2004005415A (ja) * 2002-04-19 2004-01-08 Sharp Corp 入力装置および入出力一体型表示装置
JP4096620B2 (ja) 2002-05-17 2008-06-04 松下電器産業株式会社 プラズマディスプレイ装置の製造方法
US7184009B2 (en) 2002-06-21 2007-02-27 Nokia Corporation Display circuit with optical sensor
GB2390112B (en) 2002-06-26 2005-09-07 Michael John Stubbs Snap fastener for use with fabrics
US11275405B2 (en) 2005-03-04 2022-03-15 Apple Inc. Multi-functional hand-held device
JP3937945B2 (ja) 2002-07-04 2007-06-27 セイコーエプソン株式会社 表示装置及びこれを備えた電子機器
US6894683B2 (en) 2002-07-10 2005-05-17 Intel Corporation Multi-mouse actions stylus
CN1331347C (zh) 2002-07-12 2007-08-08 东芝松下显示技术有限公司 显示装置
US7177026B2 (en) 2002-07-17 2007-02-13 New York University BRDF analyzer
US7190461B2 (en) 2002-07-17 2007-03-13 New York University Method and apparatus for determining a bidirectional reflectance distribution function, subsurface scattering or a bidirectional texture function of a subject
JP4006290B2 (ja) 2002-07-30 2007-11-14 キヤノン株式会社 座標入力装置、座標入力装置の制御方法、プログラム
US7292229B2 (en) 2002-08-29 2007-11-06 N-Trig Ltd. Transparent digitiser
WO2004025732A1 (ja) 2002-09-12 2004-03-25 Matsushita Electric Industrial Co., Ltd. 固体撮像装置およびその製造方法
US7830522B2 (en) 2002-09-25 2010-11-09 New York University Method and apparatus for determining reflectance data of a subject
JP4024642B2 (ja) 2002-10-24 2007-12-19 シャープ株式会社 画像読み取り装置および画像読み取り方法
US20060034492A1 (en) 2002-10-30 2006-02-16 Roy Siegel Hand recognition system
US20040140962A1 (en) 2003-01-21 2004-07-22 Microsoft Corporation Inertial sensors integration
DE202004021638U1 (de) 2003-02-10 2009-12-31 N-Trig Ltd. Berührungsdetektion für einen Digitalisierer
US7541617B2 (en) 2003-02-14 2009-06-02 Canon Kabushiki Kaisha Radiation image pickup device
US7176905B2 (en) 2003-02-19 2007-02-13 Agilent Technologies, Inc. Electronic device having an image-based data input system
US20080048995A1 (en) 2003-02-20 2008-02-28 Planar Systems, Inc. Light sensitive display
US20080084374A1 (en) 2003-02-20 2008-04-10 Planar Systems, Inc. Light sensitive display
US6985006B2 (en) 2003-03-27 2006-01-10 Texas Instruments Incorporated Adjusting the strength of output buffers
US7755616B2 (en) 2003-03-28 2010-07-13 Lg Display Co., Ltd. Liquid crystal display device having electromagnetic type touch panel
JP4257221B2 (ja) 2003-03-31 2009-04-22 東芝松下ディスプレイテクノロジー株式会社 表示装置および情報端末装置
TWI278817B (en) 2003-03-31 2007-04-11 Toshiba Matsushita Display Tec Display device
US7109465B2 (en) 2003-04-04 2006-09-19 Avago Technologies Ecbu Ip (Singapore) Pte., Ltd. System and method for converting ambient light energy into a digitized electrical output signal for controlling display and keypad illumination on a battery powered system
US6842327B1 (en) 2003-08-05 2005-01-11 Impinj, Inc. High-voltage CMOS-compatible capacitors
US7115923B2 (en) 2003-08-22 2006-10-03 Micron Technology, Inc. Imaging with gate controlled charge storage
KR100669270B1 (ko) 2003-08-25 2007-01-16 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 표시 장치 및 광전 변환 소자
US7649527B2 (en) 2003-09-08 2010-01-19 Samsung Electronics Co., Ltd. Image display system with light pen
KR100923025B1 (ko) 2003-10-23 2009-10-22 삼성전자주식회사 광감지 소자와, 이를 갖는 어레이 기판 및 액정 표시 장치
JP4521176B2 (ja) 2003-10-31 2010-08-11 東芝モバイルディスプレイ株式会社 表示装置
JP4383833B2 (ja) 2003-11-17 2009-12-16 東芝モバイルディスプレイ株式会社 表示装置
US20050110777A1 (en) 2003-11-25 2005-05-26 Geaghan Bernard O. Light-emitting stylus and user input device using same
US7298367B2 (en) 2003-11-25 2007-11-20 3M Innovative Properties Company Light emitting stylus and user input device using same
JP4253248B2 (ja) 2003-12-12 2009-04-08 東芝松下ディスプレイテクノロジー株式会社 液晶表示装置
US20050134749A1 (en) 2003-12-19 2005-06-23 Adiel Abileah Reflection resistant display
US7348969B2 (en) 2003-12-30 2008-03-25 3M Innovative Properties Company Passive light stylus and user input device using same
US7605828B2 (en) 2004-02-18 2009-10-20 Hewlett-Packard Development Company, L.P. Method and system for reducing gray scale discontinuities in contrast enhancing screens affected by ambient light
US7518143B2 (en) 2004-02-27 2009-04-14 National University Corporation Tohoku University Solid-state imaging device, line sensor and optical sensor and method of operating solid-state imaging device
JP2007525761A (ja) 2004-02-27 2007-09-06 エヌ−トリグ リミテッド デジタイザシステムにおけるノイズ低減
JP4547000B2 (ja) 2004-04-01 2010-09-22 株式会社ワコム パネルとコードレス・トランスデューサのシステム
US7773139B2 (en) 2004-04-16 2010-08-10 Apple Inc. Image sensor with photosensitive thin film transistors
JP4703206B2 (ja) 2004-05-31 2011-06-15 東芝モバイルディスプレイ株式会社 画像取込機能付き表示装置
US7586479B2 (en) 2004-06-10 2009-09-08 Samsung Electronics Co., Ltd. Display device and driving method thereof
US7535468B2 (en) 2004-06-21 2009-05-19 Apple Inc. Integrated sensing display
WO2006006173A2 (en) 2004-07-15 2006-01-19 N-Trig Ltd. Automatic switching for a dual mode digitizer
WO2006006174A2 (en) 2004-07-15 2006-01-19 N-Trig Ltd. A tracking window for a digitizer system
US7598949B2 (en) 2004-10-22 2009-10-06 New York University Multi-touch sensing light emitting diode display and method for using the same
CN101133382B (zh) 2004-12-01 2016-03-30 微软技术许可有限责任公司 位置探测系统和用于使用和控制该位置探测系统的装置和方法
US7800594B2 (en) 2005-02-03 2010-09-21 Toshiba Matsushita Display Technology Co., Ltd. Display device including function to input information from screen by light
TW200632729A (en) 2005-03-11 2006-09-16 Aiptek Int Inc Light guiding apparatus of optical pen
JP2008089619A (ja) 2005-03-29 2008-04-17 Sharp Corp 表示装置および電子機器
KR100806029B1 (ko) 2005-04-27 2008-02-26 이문기 접촉 스위치를 이용한 컴퓨터용 입력 장치
US7646377B2 (en) 2005-05-06 2010-01-12 3M Innovative Properties Company Position digitizing using an optical stylus to image a display
KR100961072B1 (ko) 2005-06-09 2010-06-01 엘지디스플레이 주식회사 이미지 센싱 기능을 가지는 액정표시장치 및 그 제조방법과이를 이용한 이미지 센싱 방법
EP1922602A2 (en) 2005-08-11 2008-05-21 N-trig Ltd. Apparatus for object information detection and methods of using same
US7612767B1 (en) 2005-08-24 2009-11-03 Griffin Technology, Inc. Trackpad pen for use with computer touchpad
US8552986B2 (en) 2005-08-31 2013-10-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Scalable controller for a computer input area
US20070109239A1 (en) 2005-11-14 2007-05-17 Den Boer Willem Integrated light sensitive liquid crystal display
US7791596B2 (en) 2005-12-27 2010-09-07 Interlink Electronics, Inc. Touch input device having interleaved scroll sensors
US8077155B2 (en) 2006-02-13 2011-12-13 Rehm Peter H Relative-position, absolute-orientation sketch pad and optical stylus for a personal computer
KR101327581B1 (ko) 2006-05-24 2013-11-12 엘지전자 주식회사 터치스크린 장치 및 이의 작동방법
GB2439098A (en) 2006-06-12 2007-12-19 Sharp Kk Image sensor and display
GB2439118A (en) 2006-06-12 2007-12-19 Sharp Kk Image sensor and display
US8059102B2 (en) 2006-06-13 2011-11-15 N-Trig Ltd. Fingertip touch recognition for a digitizer
US8169421B2 (en) * 2006-06-19 2012-05-01 Cypress Semiconductor Corporation Apparatus and method for detecting a touch-sensor pad gesture
TW200802058A (en) 2006-06-20 2008-01-01 Egalax Inc Scanning control device for capacitive touch panel
JP5324440B2 (ja) 2006-07-12 2013-10-23 エヌ−トリグ リミテッド デジタイザのためのホバリングおよびタッチ検出
US8686964B2 (en) 2006-07-13 2014-04-01 N-Trig Ltd. User specific recognition of intended user interaction with a digitizer
US8441467B2 (en) 2006-08-03 2013-05-14 Perceptive Pixel Inc. Multi-touch sensing display through frustrated total internal reflection
US8144271B2 (en) 2006-08-03 2012-03-27 Perceptive Pixel Inc. Multi-touch sensing through frustrated total internal reflection
CN101432639A (zh) 2006-08-11 2009-05-13 夏普株式会社 反射防止膜、偏光板、液晶显示元件和显示元件
JP4514830B2 (ja) 2006-08-15 2010-07-28 エヌ−トリグ リミテッド デジタイザのためのジェスチャ検出
WO2008044369A1 (fr) 2006-10-11 2008-04-17 Sharp Kabushiki Kaisha Affichage à cristaux liquides
WO2008044368A1 (fr) 2006-10-11 2008-04-17 Sharp Kabushiki Kaisha Affichage à cristaux liquides
WO2008044370A1 (fr) 2006-10-11 2008-04-17 Sharp Kabushiki Kaisha Affichage à cristaux liquides
US8164719B2 (en) 2006-10-13 2012-04-24 Sharp Kabushiki Kaisha Liquid crystal display device
CN101523273B (zh) 2006-10-19 2012-02-01 夏普株式会社 显示装置
US7924272B2 (en) 2006-11-27 2011-04-12 Microsoft Corporation Infrared sensor integrated in a touch panel
JP4966636B2 (ja) 2006-12-13 2012-07-04 株式会社ワコム 座標入力装置
US8089474B2 (en) 2006-12-28 2012-01-03 3M Innovative Properties Company Location sensing system and method employing adaptive drive signal adjustment
US8094128B2 (en) * 2007-01-03 2012-01-10 Apple Inc. Channel scan logic
US20080297487A1 (en) 2007-01-03 2008-12-04 Apple Inc. Display integrated photodiode matrix
US7812827B2 (en) 2007-01-03 2010-10-12 Apple Inc. Simultaneous sensing arrangement
US8970501B2 (en) 2007-01-03 2015-03-03 Apple Inc. Proximity and multi-touch sensor detection and demodulation
US8232970B2 (en) * 2007-01-03 2012-07-31 Apple Inc. Scan sequence generator
US7848825B2 (en) 2007-01-03 2010-12-07 Apple Inc. Master/slave mode for sensor processing devices
WO2008087638A1 (en) 2007-01-16 2008-07-24 N-Trig Ltd. System and method for calibration of a capacitive touch digitizer system
WO2008120200A2 (en) 2007-03-29 2008-10-09 N-Trig Ltd. System and method for multiple object detection on a digitizer system
US20080278443A1 (en) 2007-05-11 2008-11-13 Schelling Anna C User input device
US8493331B2 (en) * 2007-06-13 2013-07-23 Apple Inc. Touch detection using multiple simultaneous frequencies
US20090009483A1 (en) 2007-06-13 2009-01-08 Apple Inc. Single-chip touch controller with integrated drive system
US9772667B2 (en) 2007-06-13 2017-09-26 Apple Inc. Integrated multi-touch surface having varying sensor granularity
US7876311B2 (en) 2007-06-13 2011-01-25 Apple Inc. Detection of low noise frequencies for multiple frequency sensor panel stimulation
WO2009006557A1 (en) 2007-07-03 2009-01-08 Cypress Semiconductor Corporation Method for improving scan time and sensitivity in touch sensitive user interface device
JP4872113B2 (ja) * 2007-09-10 2012-02-08 株式会社ワコム 位置検出装置
KR20090027066A (ko) 2007-09-11 2009-03-16 리디스 테크놀로지 인코포레이티드 터치 패드 구동 장치 및 구동 방법
US8564574B2 (en) 2007-09-18 2013-10-22 Acer Incorporated Input apparatus with multi-mode switching function
CN101393488B (zh) 2007-09-18 2010-10-20 宏碁股份有限公司 柱状输入装置
US8629358B2 (en) 2007-09-26 2014-01-14 N-Trig Ltd. Method for identifying changes in signal frequencies emitted by a stylus interacting with a digitizer sensor
EP2212764B1 (en) 2007-10-11 2017-06-14 Microsoft Technology Licensing, LLC Method for palm touch identification in multi-touch digitizing systems
US8232977B2 (en) 2007-11-14 2012-07-31 N-Trig Ltd. System and method for detection with a digitizer sensor
TW200923733A (en) * 2007-11-19 2009-06-01 Inventec Appliances Corp Stylus pen applicable to capacitive touch panel
TW200925944A (en) 2007-12-12 2009-06-16 Mitac Int Corp Touch pen with erasure function
US8093914B2 (en) * 2007-12-14 2012-01-10 Cypress Semiconductor Corporation Compensation circuit for a TX-RX capacitive sensor
RU2440599C1 (ru) 2007-12-20 2012-01-20 Шарп Кабусики Кайся Устройство отображения с оптическими датчиками
US20090167702A1 (en) 2008-01-02 2009-07-02 Nokia Corporation Pointing device detection
US20090184939A1 (en) 2008-01-23 2009-07-23 N-Trig Ltd. Graphical object manipulation with a touch sensitive screen
US10969917B2 (en) 2008-01-30 2021-04-06 Apple Inc. Auto scanning for multiple frequency stimulation multi-touch sensor panels
US8289289B2 (en) 2008-04-03 2012-10-16 N-trig, Ltd. Multi-touch and single touch detection
US8125469B2 (en) 2008-04-18 2012-02-28 Synaptics, Inc. Passive stylus for capacitive sensors
EP2291729B1 (en) 2008-04-30 2013-06-05 N-Trig Ltd. Multi-touch detection
US20110043489A1 (en) 2008-05-12 2011-02-24 Yoshimoto Yoshiharu Display device and control method
US8300252B2 (en) 2008-06-18 2012-10-30 Livescribe, Inc. Managing objects with varying and repeated printed positioning information
TW201008421A (en) 2008-06-18 2010-02-16 N trig ltd Methods for connecting two substrates having conductive pads thereon using a double-sided adhesive
US20100001978A1 (en) 2008-07-02 2010-01-07 Stephen Brian Lynch Ambient light interference reduction for optical input devices
US20100006350A1 (en) 2008-07-11 2010-01-14 Elias John G Stylus Adapted For Low Resolution Touch Sensor Panels
JP4609543B2 (ja) 2008-07-25 2011-01-12 ソニー株式会社 情報処理装置及び情報処理方法
US8536471B2 (en) 2008-08-25 2013-09-17 N-Trig Ltd. Pressure sensitive stylus for a digitizer
TW201011600A (en) 2008-09-01 2010-03-16 Turbotouch Technology Inc E Electromagnetic stylus for operating a capacitive touch panel
US9348451B2 (en) 2008-09-10 2016-05-24 Apple Inc. Channel scan architecture for multiple stimulus multi-touch sensor panels
US8659556B2 (en) 2008-09-10 2014-02-25 Apple Inc. Advanced receive channel architecture
JP2010067117A (ja) * 2008-09-12 2010-03-25 Mitsubishi Electric Corp タッチパネル装置
JP5216495B2 (ja) 2008-09-16 2013-06-19 株式会社ジャパンディスプレイウェスト 接触検出装置および表示装置
US20110169771A1 (en) 2008-09-19 2011-07-14 Akizumi Fujioka DISPLAY PANEL HOUSING OPTICAL SENSORS (amended
CN102187236B (zh) * 2008-09-24 2015-04-22 3M创新有限公司 互电容测量电路和方法
US8482545B2 (en) 2008-10-02 2013-07-09 Wacom Co., Ltd. Combination touch and transducer input system and method
CN201329722Y (zh) 2008-11-20 2009-10-21 张铭阳 一种笔
GB2466566B (en) 2008-12-22 2010-12-22 N trig ltd Digitizer, stylus and method of synchronization therewith
US8633901B2 (en) 2009-01-30 2014-01-21 Blackberry Limited Handheld electronic device having a touchscreen and a method of using a touchscreen of a handheld electronic device
US20110157068A1 (en) 2009-12-31 2011-06-30 Silicon Laboratories Inc. Touch screen power-saving screen scanning algorithm
US8278571B2 (en) 2009-04-03 2012-10-02 Pixart Imaging Inc. Capacitive touchscreen or touchpad for finger and active stylus
US8537126B2 (en) 2009-04-06 2013-09-17 Apple Inc. Integrated touch sensitive display gate driver
TWI384386B (zh) 2009-04-22 2013-02-01 Kye Systems Corp An optical input device, an electronic device, and an optical input system
TW201039113A (en) * 2009-04-29 2010-11-01 Prime View Int Co Ltd Digital electronic apparatus
US8154529B2 (en) 2009-05-14 2012-04-10 Atmel Corporation Two-dimensional touch sensors
TW201044234A (en) 2009-06-08 2010-12-16 Chunghwa Picture Tubes Ltd Method of scanning touch panel
US9417738B2 (en) 2009-06-12 2016-08-16 Synaptics Incorporated Untethered active pen and a method for communicating with a capacitive sensing device using the untethered active pen
TWI435242B (zh) 2009-06-17 2014-04-21 Sitronix Technology Corp With discharge function of a touch panel
US8258797B2 (en) 2009-06-24 2012-09-04 Synaptics Incorporated Capacitive sensor interference determination
US20120086664A1 (en) 2009-06-29 2012-04-12 Gerald Leto Multifunctional writing apparatus with capacitive touch screen stylus
US8451237B2 (en) 2009-07-06 2013-05-28 Atmel Corporation Sensitivity control as a function of touch shape
US9182854B2 (en) 2009-07-08 2015-11-10 Microsoft Technology Licensing, Llc System and method for multi-touch interactions with a touch sensitive screen
US8723825B2 (en) 2009-07-28 2014-05-13 Cypress Semiconductor Corporation Predictive touch surface scanning
US8269511B2 (en) * 2009-09-08 2012-09-18 Synaptics Incorporated Sensing and defining an input object
US9036650B2 (en) 2009-09-11 2015-05-19 Apple Inc. Automatic low noise frequency selection
US8031094B2 (en) 2009-09-11 2011-10-04 Apple Inc. Touch controller with improved analog front end
US9753586B2 (en) 2009-10-08 2017-09-05 3M Innovative Properties Company Multi-touch touch device with multiple drive frequencies and maximum likelihood estimation
TWI405107B (zh) 2009-10-09 2013-08-11 Egalax Empia Technology Inc 分析位置的方法與裝置
TW201115414A (en) 2009-10-16 2011-05-01 Dai-Qi Wu Touch-control device and personalized digital system having the same
JP5430339B2 (ja) 2009-10-19 2014-02-26 株式会社ワコム 位置検出装置及び位置指示器
JP5346769B2 (ja) * 2009-10-21 2013-11-20 株式会社ジャパンディスプレイ タッチパネル及びそれを備えた表示装置
DE102009050191A1 (de) 2009-10-21 2011-04-28 Sinitec Vertriebsgesellschaft Mbh System mit einem Stift zum Bedienen eines elektronischen Geräts und einer Aufbewahrungsvorrichtung sowie Verfahren zum Ausrichten eines Stifts
KR101073309B1 (ko) 2009-11-24 2011-10-12 삼성모바일디스플레이주식회사 터치 스크린 시스템 및 그 구동방법
WO2011075113A1 (en) 2009-12-14 2011-06-23 Hewlett-Packard Development Company, L.P. Stylus for a touchscreen display
JP5345050B2 (ja) 2009-12-25 2013-11-20 株式会社ワコム 指示体、位置検出装置及び位置検出方法
US8174273B2 (en) * 2010-01-07 2012-05-08 3M Innovative Properties Company Capacitance measurement circuit with dynamic feedback
KR101085776B1 (ko) * 2010-01-15 2011-11-21 삼성전자주식회사 터치 패널 및 그 터치 패널을 이용한 입력 인식 장치
JP5427070B2 (ja) 2010-03-05 2014-02-26 株式会社ワコム 位置検出装置
US20110216016A1 (en) 2010-03-08 2011-09-08 Plantronics, Inc. Touch Sensor With Active Baseline Tracking
CN102236483B (zh) 2010-05-04 2016-03-30 宸鸿科技(厦门)有限公司 一种触控面板、制造方法及其扫描方法
US9864440B2 (en) 2010-06-11 2018-01-09 Microsoft Technology Licensing, Llc Object orientation detection with a digitizer
JP2012022543A (ja) 2010-07-15 2012-02-02 Panasonic Corp タッチパネルシステム
US9013441B2 (en) 2010-08-24 2015-04-21 Cypress Semiconductor Corporation Smart scanning for a capacitive sensing array
CN201837984U (zh) 2010-08-25 2011-05-18 毅齐科技股份有限公司 一种表面电容式触控面板的多点触控结构
US9176630B2 (en) * 2010-08-30 2015-11-03 Perceptive Pixel, Inc. Localizing an electrostatic stylus within a capacitive touch sensor
US8890817B2 (en) * 2010-09-07 2014-11-18 Apple Inc. Centralized processing of touch information
US8847896B2 (en) 2010-09-09 2014-09-30 Conexant Systems, Inc. Adaptive high dynamic range surface capacitive touchscreen controller
US10019119B2 (en) * 2010-09-09 2018-07-10 3M Innovative Properties Company Touch sensitive device with stylus support
US8730204B2 (en) 2010-09-16 2014-05-20 Synaptics Incorporated Systems and methods for signaling and interference detection in sensor devices
WO2012039837A1 (en) 2010-09-22 2012-03-29 Cypress Semiconductor Corporation Capacitive stylus for a touch screen
WO2012057888A1 (en) * 2010-10-28 2012-05-03 Cypress Semiconductor Corporation Synchronizing a stylus with a capacitive sense array
US9019230B2 (en) 2010-10-31 2015-04-28 Pixart Imaging Inc. Capacitive touchscreen system with reduced power consumption using modal focused scanning
US9310923B2 (en) 2010-12-03 2016-04-12 Apple Inc. Input device for touch sensitive devices
JP4683505B1 (ja) * 2010-12-14 2011-05-18 株式会社ワコム 位置指示器
US20120154295A1 (en) 2010-12-17 2012-06-21 Microsoft Corporation Cooperative use of plural input mechanisms to convey gestures
US8766954B2 (en) * 2010-12-21 2014-07-01 Motorola Mobility Llc Active stylus for use with touch-sensitive interfaces and corresponding method
US8804056B2 (en) 2010-12-22 2014-08-12 Apple Inc. Integrated touch screens
KR101773612B1 (ko) 2011-01-13 2017-08-31 삼성전자주식회사 터치 영역 확인 장치 및 방법
US9235340B2 (en) 2011-02-18 2016-01-12 Microsoft Technology Licensing, Llc Modal touch input
EP2689378A2 (en) 2011-03-21 2014-01-29 N-Trig Ltd. System and method for authentication with a computer stylus
US8884891B2 (en) 2011-04-29 2014-11-11 Broadcom Corporation Transmit/receive switch for a touch-screen system
US8773403B2 (en) 2011-05-20 2014-07-08 Sony Corporation Haptic device for position detection
US8907931B2 (en) 2011-06-20 2014-12-09 Sony Corporation Electronic terminal, input correction method, and program
US8928635B2 (en) 2011-06-22 2015-01-06 Apple Inc. Active stylus
US9329703B2 (en) 2011-06-22 2016-05-03 Apple Inc. Intelligent stylus
US8638320B2 (en) 2011-06-22 2014-01-28 Apple Inc. Stylus orientation detection
US20120327040A1 (en) 2011-06-22 2012-12-27 Simon David I Identifiable stylus
US8698769B2 (en) 2011-08-01 2014-04-15 Sharp Kabushiki Kaisha Dual mode capacitive touch panel
US8797301B2 (en) 2012-02-15 2014-08-05 Cypress Semiconductor Corporation Active stylus to host data transmitting method
US9746967B2 (en) 2011-09-15 2017-08-29 Apple Inc. Concurrent touch and negative pixel scan
US8933899B2 (en) 2011-10-28 2015-01-13 Atmel Corporation Pulse- or frame-based communication using active stylus
EP2783270B1 (en) 2011-11-21 2018-12-26 Microsoft Technology Licensing, LLC Customizing operation of a touch screen
US8581870B2 (en) 2011-12-06 2013-11-12 Apple Inc. Touch-sensitive button with two levels
US20130176273A1 (en) 2012-01-09 2013-07-11 Broadcom Corporation Fast touch detection in a mutual capacitive touch system
US9001072B2 (en) 2012-01-09 2015-04-07 Broadcom Corporation Asymmetric multi-row touch panel scanning
US9013429B1 (en) 2012-01-14 2015-04-21 Cypress Semiconductor Corporation Multi-stage stylus detection
KR101898979B1 (ko) 2012-02-16 2018-09-17 삼성디스플레이 주식회사 터치 패널의 구동 방법, 터치 패널 및 디스플레이 장치
US9116571B2 (en) 2012-03-27 2015-08-25 Adonit Co., Ltd. Method and system of data input for an electronic device equipped with a touch screen
EP2660689B1 (en) 2012-05-04 2019-12-25 BlackBerry Limited Electronic device and method of detecting touches on a touch-sensitive display
US9557845B2 (en) 2012-07-27 2017-01-31 Apple Inc. Input device for and method of communication with capacitive devices through frequency variation
US9652090B2 (en) 2012-07-27 2017-05-16 Apple Inc. Device for digital communication through capacitive coupling
US8816985B1 (en) 2012-09-20 2014-08-26 Cypress Semiconductor Corporation Methods and apparatus to detect a touch pattern
TWI470523B (zh) 2012-11-09 2015-01-21 Orise Technology Co Ltd 電容式觸控面板的雜訊濾除方法及系統
CN103268162B (zh) 2012-11-27 2017-05-10 上海天马微电子有限公司 一种触摸信号扫描装置及扫描方法
US20140168140A1 (en) 2012-12-18 2014-06-19 Logitech Europe S.A. Method and system for discriminating stylus and touch interactions
US10048775B2 (en) 2013-03-14 2018-08-14 Apple Inc. Stylus detection and demodulation
TWI599924B (zh) 2013-07-19 2017-09-21 和冠股份有限公司 觸控事件掃描方法
US10845901B2 (en) 2013-07-31 2020-11-24 Apple Inc. Touch controller architecture
US9454272B2 (en) 2014-05-22 2016-09-27 Stmicroelectronics Asia Pacific Pte Ltd Touch screen for stylus emitting wireless signals
US10067618B2 (en) 2014-12-04 2018-09-04 Apple Inc. Coarse scan and targeted active mode scan for touch

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI488102B (zh) * 2013-06-20 2015-06-11 Focaltech Systems Ltd 電容式觸控螢幕
CN104345920A (zh) * 2013-08-09 2015-02-11 义隆电子股份有限公司 电容触控笔的主动式控制方法及主动式电容触控笔
TWI576741B (zh) * 2013-11-08 2017-04-01 禾瑞亞科技股份有限公司 數位解調變器及數位解調變方法
TWI510978B (zh) * 2014-01-28 2015-12-01 Kye Systems Corp 主動式觸控筆及其筆頭結構
TWI668601B (zh) * 2014-05-12 2019-08-11 日商和冠股份有限公司 主動式觸控筆及觸碰感測器之時序同步
TWI716036B (zh) * 2014-05-12 2021-01-11 日商和冠股份有限公司 觸控筆、系統及控制器積體電路
TWI725483B (zh) * 2014-05-12 2021-04-21 日商和冠股份有限公司 觸控筆、控制器積體電路及包括觸控筆及觸碰感測器控制器之系統
TWI726357B (zh) * 2014-05-12 2021-05-01 日商和冠股份有限公司 儲存媒體、時序同步方法及觸控筆
TWI514230B (zh) * 2014-05-26 2015-12-21 Ite Tech Inc 電容式觸控面板之操作方法和電容式觸控感測器
TWI655561B (zh) * 2017-08-07 2019-04-01 奇景光電股份有限公司 主動式手寫筆、觸控感測器以及用於主動式手寫筆與觸控感測器的訊號傳輸和感測方法
US10528158B2 (en) 2017-08-07 2020-01-07 Himax Technologies Limited Active stylus, touch sensor, and signal transmission and sensing method for active stylus and touch sensor
TWI658381B (zh) * 2018-03-09 2019-05-01 宏碁股份有限公司 觸控筆及其控制方法

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US8928635B2 (en) 2015-01-06
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US9519361B2 (en) 2016-12-13
US20120327041A1 (en) 2012-12-27
US20150103049A1 (en) 2015-04-16
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WO2012177571A9 (en) 2014-01-09
EP2724217B1 (en) 2016-11-02
EP2724217A1 (en) 2014-04-30
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HK1196679A1 (zh) 2014-12-19

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