TWI462002B - Signal processor, touch judgment device and touch judgment method - Google Patents
Signal processor, touch judgment device and touch judgment method Download PDFInfo
- Publication number
- TWI462002B TWI462002B TW101130249A TW101130249A TWI462002B TW I462002 B TWI462002 B TW I462002B TW 101130249 A TW101130249 A TW 101130249A TW 101130249 A TW101130249 A TW 101130249A TW I462002 B TWI462002 B TW I462002B
- Authority
- TW
- Taiwan
- Prior art keywords
- sensing data
- button
- touch
- touched
- state value
- Prior art date
Links
Landscapes
- Electronic Switches (AREA)
- Position Input By Displaying (AREA)
Description
本發明是有關於一種判斷方法及裝置，特別是指一種觸碰判斷方法及裝置。The invention relates to a method and device for judging, in particular to a method and device for judging touch.
電容式觸控應用的電路板中，感應器能對觸控按鍵的感應電容進行充放電而得到正比於感應電容的一感測資料。一般來說，感應電容的影響因素包括觸控按鍵受到的外力，也包括整體電路板對觸控按鍵產生的寄生電容效應，甚者更包括裝設有觸控按鍵的電路板所處的環境。其中，環境因素例如：使電路板置於鐵桌上，使電路板放在電源供應器或其他會發出雜訊的儀器旁。In the circuit board of the capacitive touch application, the sensor can charge and discharge the sensing capacitance of the touch button to obtain a sensing data proportional to the sensing capacitance. In general, the influencing factors of the sensing capacitor include the external force received by the touch button, and the parasitic capacitance effect of the overall circuit board on the touch button, and even the environment in which the circuit board with the touch button is placed. Among them, environmental factors such as placing the board on an iron table, placing the board next to a power supply or other instrument that emits noise.
參閱圖1，在沒有環境干擾的情況下，感應電容的感測資料在無外力介入時會保持一穩態值，且在外力介入期間(如時間t=1~3)躍升高出門檻，故習知技術可輕易判斷觸控按鍵受觸碰與否。Referring to Figure 1, in the absence of environmental interference, the sensing data of the sensing capacitor will maintain a steady state value when there is no external force intervention, and rise above the threshold during external force intervention (such as time t=1~3). The prior art can easily determine whether the touch button is touched or not.
參閱圖2，倘若觸控按鍵於時間t=1~10時受到環境干擾，會促使感應電容的感測資料上升。為了避免環境干擾影響觸控判斷結果，習知技術會在0≦感測資料≦門檻時修正感測資料，使趨近於穩態值。例如，圖2的感測資料在時間t=1~7持續被修正，且在t=7後回到穩態值。Referring to FIG. 2, if the touch button is subjected to environmental interference at time t=1~10, the sensing data of the sensing capacitor is increased. In order to avoid environmental interference affecting the touch judgment result, the conventional technique corrects the sensed data at a threshold of 0 ≦ sensing data, so as to approach the steady state value. For example, the sensed data of FIG. 2 is continuously corrected at time t=1~7, and returns to the steady state value after t=7.
不過，感測資料修正期間，如果觸控按鍵受外力觸碰，有效感應電容的變化可能讓感測資料無法超出門檻，造成觸控判斷錯誤，如圖3的時間t=5~6。因此，如何調整感 測資料修正方式，維持觸控判斷準確度，是目前一大課題。However, during the correction of the sensing data, if the touch button is touched by an external force, the change of the effective sensing capacitance may make the sensing data not exceed the threshold, causing the touch judgment error, as shown in FIG. 3, time t=5~6. Therefore, how to adjust the sense It is a major issue to measure the data correction method and maintain the accuracy of touch judgment.
因此，本發明之目的，即在提供一種信號處理器、觸碰判斷裝置及觸碰判斷方法，即使存在環境干擾，也能準確判斷按鍵受觸碰與否。Therefore, an object of the present invention is to provide a signal processor, a touch judging device, and a touch judging method capable of accurately determining whether a button is touched or not even if there is environmental interference.
於是，本發明觸碰判斷方法，適用於判斷設置於一觸控板上的一個按鍵是否被觸控，包含以下步驟：(A)每隔一段時間分析關於該按鍵的一感測資料；(B)當目前時間的該感測資料≧一觸碰門檻間，判斷該按鍵被觸碰；及(C)當目前時間的該感測資料<該觸碰門檻間，判斷該按鍵未被觸碰，且在該感測資料介於該觸碰門檻和一修正門檻間時不修正該感測資料，在該感測資料介於該修正門檻和一穩態值間時修正該感測資料；其中，該觸碰門檻>該修正門檻>該穩態值，而該穩態值是該按鍵於該觸控板剛上電且未被觸碰時的感測資料。Therefore, the touch determination method of the present invention is suitable for determining whether a button disposed on a touch panel is touched, and includes the following steps: (A) analyzing a sensing data about the button at intervals; (B) When the sensing data of the current time touches the threshold, it is judged that the button is touched; and (C) when the sensing data of the current time <between the touch threshold, it is judged that the button is not touched, And correcting the sensing data when the sensing data is between the touch threshold and a correction threshold, and correcting the sensing data when the sensing data is between the correction threshold and a steady state value; wherein The touch threshold > the correction threshold > the steady state value, and the steady state value is the sensing data when the button is just powered on and not touched.
而本發明觸碰判斷裝置，適用於判斷設置於一觸控板上的一個觸控按鍵是否被觸控，包括：一判斷單元，每隔一段時間分析關於該按鍵的一感測資料，當目前時間的該感測資料≧一觸碰門檻間，判斷該按鍵被觸碰，當目前時間的該感測資料<該觸碰門檻間，判斷該按鍵未被觸碰；及一修正單元，當該判斷單元判斷該按鍵未被觸碰，在該感測資料介於該觸碰門檻和一修正門檻間時不修正該感測資料，在該感測資料介於該修正門檻和一穩態值間時修正該 感測資料；其中，該觸碰門檻>該修正門檻>該穩態值，而該穩態值是該按鍵於該觸控板剛上電且未被觸碰時的感測資料。The touch determination device of the present invention is adapted to determine whether a touch button disposed on a touch panel is touched, including: a determining unit, analyzing a sensing data about the button at intervals, when The sensing data of the time is touched between the thresholds, and the button is judged to be touched. When the sensing data of the current time is <between the touch threshold, the button is judged to be untouched; and a correction unit is used. The determining unit determines that the button is not touched, and does not correct the sensing data when the sensing data is between the touch threshold and a correction threshold, wherein the sensing data is between the correction threshold and a steady state value Fix this Sensing data; wherein the touch threshold > the correction threshold > the steady state value, and the steady state value is the sensing data when the button is just powered on and not touched.
且本發明信號處理器，適用於耦接一個設置有一個按鍵的觸控板，包含：一傳輸介面，用以接收該觸控板傳來的一感測資料，其中該感測資料相關於該按鍵的一感應電容大小；一判斷單元，每隔一段時間分析該感測資料，當目前時間的該感測資料≧一觸碰門檻間，判斷該按鍵被觸碰，當目前時間的該感測資料<該觸碰門檻間，判斷該按鍵未被觸碰；及一修正單元，當該判斷單元判斷該按鍵未被觸碰，在該感測資料介於該觸碰門檻和一修正門檻間時不修正該感測資料，在該感測資料介於該修正門檻和一穩態值間時修正該感測資料；其中，該觸碰門檻>該修正門檻>該穩態值，而該穩態值是該按鍵於該觸控板剛上電且未被觸碰時的感測資料。The signal processor of the present invention is adapted to be coupled to a touch panel provided with a button, comprising: a transmission interface for receiving a sensing material sent by the touch panel, wherein the sensing data is related to the The size of a sensing capacitor of the button; a judging unit analyzes the sensing data at intervals, and when the sensing data of the current time touches the threshold, it is determined that the button is touched, and the sensing of the current time Data < between the touch thresholds, determining that the button is not touched; and a correction unit, when the determining unit determines that the button is not touched, when the sensing data is between the touch threshold and a correction threshold The sensing data is not corrected, and the sensing data is corrected when the sensing data is between the correction threshold and a steady state value; wherein the touch threshold > the correction threshold > the steady state value, and the steady state The value is the sensing data when the button is just powered on and not touched.
有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之二個較佳實施例的詳細說明中，將可清楚的呈現。The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.
在本發明被詳細描述之前，要注意的是，在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.
參閱圖4，本發明觸碰判斷裝置22之較佳實施例適用於一觸控系統100中，觸控系統100包含一觸控板1和一信號處理器2。觸控板1包括一輸入單元11、一感應器12 ，以及一傳輸介面13。而信號處理器2包括一傳輸介面21、該觸碰判斷裝置22和一輸出單元23。Referring to FIG. 4, the preferred embodiment of the touch determination device 22 of the present invention is applicable to a touch system 100. The touch system 100 includes a touch panel 1 and a signal processor 2. The touch panel 1 includes an input unit 11 and a sensor 12 And a transmission interface 13. The signal processor 2 includes a transmission interface 21, the touch determination device 22, and an output unit 23.
較佳地，輸入單元11具有一按鍵P和一感應電容C，是以印刷電路板(printed circuit board)的銅箔導體做為感測，可為實銅或網銅。但其他態樣也可採用氧化銦錫(ITO)技術實現電容感應，如手機的多媒體按鍵，但不以上述為限。又，感應電容C大小的影響因素包括整體觸控板1對按鍵P的寄生電容效應、按鍵P受到的外力，以及觸控板1所處環境。因此，當觸控板1上電而未有外力或環境干擾介入時，感應電容C即存在非零值，所以感測資料初始值非零，下文稱此初始值為一個穩態值。Preferably, the input unit 11 has a button P and a sensing capacitor C, which are sensed by a copper foil conductor of a printed circuit board, and may be solid copper or mesh copper. However, other aspects can also use the indium tin oxide (ITO) technology to achieve capacitive sensing, such as multimedia buttons of mobile phones, but not limited to the above. Moreover, the influence factors of the magnitude of the sensing capacitor C include the parasitic capacitance effect of the overall touch panel 1 on the button P, the external force received by the button P, and the environment in which the touch panel 1 is placed. Therefore, when the touch panel 1 is powered up without external force or environmental interference, the sensing capacitor C has a non-zero value, so the initial value of the sensing data is non-zero, and the initial value is hereinafter referred to as a steady state value.
整體來說，觸控板1中，感應器12根據感應電容C大小得到一感測資料，然後透過傳輸介面13傳送出去。信號處理器2藉由傳輸介面21接收感測資料，並藉由觸碰判斷裝置22判斷感測資料以瞭解按鍵P受觸碰情形，且藉由輸出單元23呈現判斷結果。Generally, in the touch panel 1, the sensor 12 obtains a sensing data according to the size of the sensing capacitor C, and then transmits it through the transmission interface 13. The signal processor 2 receives the sensing data through the transmission interface 21, and determines the sensing data by the touch determining device 22 to understand that the button P is touched, and presents the determination result by the output unit 23.
其中，感應器12具有一充電轉換器(Charge Transfer)14和一計數器15。充電轉換器14實施態樣可參考圖5，其使用電源信號VDD對感應電容C進行充放電，以輸出一個具有多個脈衝的比較信號。計數器15則使用一時脈信號來計數該比較信號的兩相鄰脈衝間隔，來當作關於感應電容C的感測資料，更明確地感測資料是指「比較信號的兩相鄰脈衝間隔」涵蓋「時脈信號的多少個脈衝」。The sensor 12 has a charge transfer 14 and a counter 15. Referring to FIG. 5, the charging converter 14 can charge and discharge the sensing capacitor C using the power signal VDD to output a comparison signal having a plurality of pulses. The counter 15 uses a clock signal to count the two adjacent pulse intervals of the comparison signal as sensing data about the sensing capacitor C. More specifically, the sensing data refers to "two adjacent pulse intervals of the comparison signal". "How many pulses of the clock signal".
而輸出單元23的呈現方式，例如：若判斷出按鍵P被 觸碰，做為輸出單元23的七段顯示器會發出匹配感測資料的光，又例如：若判斷出按鍵P被觸碰，做為輸出單元23的揚聲器會發出一嗶聲。And the presentation mode of the output unit 23, for example: if it is determined that the button P is When touched, the seven-segment display as the output unit 23 emits light that matches the sensing data, and for example, if it is judged that the button P is touched, the speaker as the output unit 23 emits a click.
較特別的是，鑒於習知技術常因觸控板1所處環境造成錯誤的觸碰判斷，觸碰判斷裝置22特別執行本發明觸碰判斷方法之第一較佳實施例，以提升判斷準確度。圖4的觸碰判斷裝置22具有一判斷單元24和一修正單元25，會每隔一段取樣時間分析感測資料，主要步驟內容包括如圖6的以下流程。More specifically, in view of the fact that the prior art often causes erroneous touch determination due to the environment in which the touch panel 1 is located, the touch determination device 22 particularly performs the first preferred embodiment of the touch determination method of the present invention to improve the accuracy of the determination. degree. The touch determination device 22 of FIG. 4 has a determination unit 24 and a correction unit 25, and the sensing data is analyzed every other sampling time. The main steps include the following flow as shown in FIG. 6.
步驟71：判斷單元24判斷目前取樣時間點的感測資料是否≧修正門檻，其中修正門檻>穩態值。若是，繼續步驟72；若否，代表目前感測資料介於修正門檻和穩態值間，所以判定按鍵P未被觸碰並跳到步驟73。Step 71: The determining unit 24 determines whether the sensing data of the current sampling time point is a correction threshold, wherein the threshold is corrected > the steady state value. If yes, proceed to step 72; if no, the current sensing data is between the correction threshold and the steady state value, so it is determined that the button P is not touched and jumps to step 73.
步驟72：判斷單元24判斷目前取樣時間點的感測資料是否≧觸碰門檻，其中觸碰門檻>修正門檻。若是，判定按鍵P被觸碰並跳到步驟74，否則判定按鍵P未被觸碰且跳到步驟74。Step 72: The judging unit 24 judges whether the sensing data of the current sampling time point is touching the threshold, and the touch threshold > the correction threshold. If so, it is determined that the button P is touched and jumps to step 74, otherwise it is determined that the button P is not touched and jumps to step 74.
步驟73：修正單元25使用穩態值修正感測資料，使趨近於穩態值。Step 73: The correction unit 25 corrects the sensing data using the steady state value so as to approach the steady state value.
步驟74：判斷單元24在距離前一取樣時間點已達一段取樣時間，使流程回到步驟71。Step 74: The judging unit 24 has reached a sampling time from the previous sampling time point, and the flow returns to step 71.
較佳地，本例的穩態值=0，修正門檻=360，觸碰門檻=1600，但其他應用不以此為限。實作上，當按鍵P被實際觸碰，而使感測資料=Ds，那麼觸碰門檻會設定=Ds×0.8， 且修正門檻會設定=Ds×G，其中0.1<增益G<0.5。此外，修正單元25是根據目前感測資料和穩態值來修正感測資料，即修正後感測資料=A ×目前感測資料+B ×穩態值，較佳地第一參數A=(3/5)且第二參數B=(2/5)，此兩個參數與按鍵P材質(如實銅或網銅)相關。Preferably, the steady state value of this example is =0, the correction threshold is 360, and the threshold is =1600, but other applications are not limited thereto. In practice, when the button P is actually touched and the sensing data = Ds, the touch threshold will be set = Ds × 0.8, and the correction threshold will be set = Ds × G, where 0.1 < gain G < 0.5. In addition, the correcting unit 25 corrects the sensing data according to the current sensing data and the steady state value, that is, the corrected sensing data = A × current sensing data + B × steady state value, preferably the first parameter A=( 3/5) and the second parameter B=(2/5), these two parameters are related to the material of the button P (such as solid copper or mesh copper).
以下舉兩個範例進行說明，其中穩態值=0，修正門檻=360，觸碰門檻=1600。Two examples are given below, where the steady state value = 0, the correction threshold = 360, and the touch threshold = 1600.
參閱圖7，在沒有環境干擾的情況下，感測資料只有在外力按壓按鍵P(即時間t=1~3)時才呈現值=2000，其他時候保持值=0。因此，本實施例的觸碰判斷裝置22會判斷按鍵P於時間t=1~3被觸碰。Referring to FIG. 7, in the absence of environmental interference, the sensed data only exhibits a value of 2000 when the external force presses the button P (ie, time t=1~3), and keeps the value=0 at other times. Therefore, the touch determination device 22 of the present embodiment determines that the button P is touched at time t=1~3.
參閱圖8，在存有環境干擾的情況下，感測資料在時間t=1~8受環境干擾提升到1500，因為1500介於修正門檻和觸碰門檻間，所以感測資料沒有被修正。感測資料於時間t=5~6更因為外力按壓按鍵P提高至2000，所以本實施例的觸碰判斷裝置22能正確地判斷按鍵P是否被觸碰。Referring to FIG. 8, in the case of environmental interference, the sensing data is increased to 1500 by the environmental interference at time t=1~8, because the 1500 is between the correction threshold and the touch threshold, so the sensing data is not corrected. Since the sensing data is increased to 2000 by the external force pressing button P at time t=5 to 6, the touch determination device 22 of the present embodiment can correctly determine whether or not the button P is touched.
又，觸碰判斷裝置22也能執行本發明觸碰判斷方法之第二較佳實施例，達到提升判斷準確度的目的，如圖9。Moreover, the touch determination device 22 can also perform the second preferred embodiment of the touch determination method of the present invention to achieve the purpose of improving the accuracy of the determination, as shown in FIG.
步驟81：判斷單元24判斷目前取樣時間點的感測資料是否≧觸碰門檻。若是，判定按鍵P被觸碰且跳到步驟84。若否，判定按鍵P未被觸碰且繼續步驟82。Step 81: The judging unit 24 judges whether the sensing data of the current sampling time point is touching the threshold. If so, it is determined that the button P is touched and jumps to step 84. If not, it is determined that the button P is not touched and proceeds to step 82.
步驟82：判斷單元24判斷目前取樣時間點的感測資料是否≧修正門檻。若是，流程跳到步驟84；若否，代表目前感測資料介於修正門檻和穩態值間，繼續步驟83。Step 82: The judging unit 24 judges whether the sensing data of the current sampling time point is the correction threshold. If yes, the process jumps to step 84; if not, it represents that the current sensing data is between the correction threshold and the steady state value, and proceeds to step 83.
步驟83：修正單元25使用穩態值修正感測資料，使趨近於穩態值。Step 83: The correction unit 25 corrects the sensing data using the steady state value so as to approach the steady state value.
步驟84：判斷單元24在距離前一取樣時間點已達一段取樣時間，使流程回到步驟81。Step 84: The judging unit 24 has reached a sampling time from the previous sampling time point, and returns the flow to step 81.
綜上所述，前述較佳實施例中，修正單元25僅在感測資料<修正門檻時才進行修正，所以即使存在環境干擾而使修正門檻≦感測資料<觸碰門檻，判斷單元24仍可準確判斷按鍵P觸碰情形，不像習知技術容易因為下修感測資料導致誤判，故確實能達成本發明之目的。In summary, in the foregoing preferred embodiment, the correcting unit 25 performs the correction only when the sensing data <the correction threshold is performed, so even if there is environmental interference, the correction threshold sensing data <touch threshold, the determining unit 24 still It is possible to accurately judge the touch situation of the button P, and unlike the conventional technology, it is easy to cause a misjudgment due to the repair of the sensing data, so that the object of the present invention can be achieved.
特別說明的是，圖4的感應器12和傳輸介面13可整合於一觸控晶片10中，且觸控板1的傳輸介面13與信號處理器2的傳輸介面21為飛利浦公司提出的I2 C(Inter-Integrated Circuit，積體電路間)介面，但其他應用不以此為限。Specifically, the sensor 12 and the transmission interface 13 of FIG. 4 can be integrated into a touch wafer 10, and the transmission interface 13 of the touch panel 1 and the transmission interface 21 of the signal processor 2 are I 2 proposed by Philips. C (Inter-Integrated Circuit) interface, but other applications are not limited to this.
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.
100‧‧‧觸控系統100‧‧‧ touch system
1‧‧‧觸控板1‧‧‧Touchpad
11‧‧‧輸入單元11‧‧‧ Input unit
12‧‧‧感應器12‧‧‧ sensor
13‧‧‧傳輸介面13‧‧‧Transport interface
14‧‧‧充電轉換器14‧‧‧Charging converter
15‧‧‧計數器15‧‧‧ counter
2‧‧‧信號處理器2‧‧‧Signal Processor
21‧‧‧傳輸介面21‧‧‧Transport interface
22‧‧‧觸碰判斷裝置22‧‧‧Touch judgment device
23‧‧‧輸出單元23‧‧‧Output unit
24‧‧‧判斷單元24‧‧‧judging unit
25‧‧‧修正單元25‧‧‧Revising unit
71~74‧‧‧步驟71~74‧‧‧Steps
81~84‧‧‧步驟81~84‧‧‧Steps
C‧‧‧感應電容C‧‧‧Induction Capacitor
Cr ‧‧‧電容C r ‧‧‧ capacitor
CMP‧‧‧比較器CMP‧‧‧ comparator
LF‧‧‧低通濾波器LF‧‧‧ low pass filter
P‧‧‧按鍵P‧‧‧ button
Rext ‧‧‧電阻R ext ‧‧‧resistance
S0~S3‧‧‧開關S0~S3‧‧‧ switch
圖1是一時序圖，說明沒有環境干擾時的感測資料變化；圖2是一時序圖，說明有環境干擾時的感測資料變化；圖3是一時序圖，說明有環境干擾時的感測資料變化 ；圖4是一方塊圖，說明本較佳實施例的觸控系統；圖5是一電路圖，說明充電轉換器的實施態樣；圖6是一流程圖，說明觸碰判斷方法的第一較佳實施例；圖7是一時序圖，說明沒有環境干擾時的感測資料變化；圖8是一時序圖，說明有環境干擾時的感測資料變化；及圖9是一流程圖，說明觸碰判斷方法的第二較佳實施例。1 is a timing diagram illustrating changes in sensing data in the absence of environmental interference; FIG. 2 is a timing diagram illustrating changes in sensing data in the presence of environmental disturbances; and FIG. 3 is a timing diagram illustrating the sense of environmental interference Measuring data changes 4 is a block diagram illustrating the touch system of the preferred embodiment; FIG. 5 is a circuit diagram illustrating an embodiment of the charging converter; FIG. 6 is a flow chart illustrating the first comparison of the touch determination method A preferred embodiment; FIG. 7 is a timing diagram illustrating changes in sensing data in the absence of environmental interference; FIG. 8 is a timing diagram illustrating changes in sensing data in the presence of environmental disturbances; and FIG. 9 is a flow chart illustrating A second preferred embodiment of the method of judging the touch.
100‧‧‧觸控系統100‧‧‧ touch system
1‧‧‧觸控板1‧‧‧Touchpad
11‧‧‧輸入單元11‧‧‧ Input unit
12‧‧‧感應器12‧‧‧ sensor
13‧‧‧傳輸介面13‧‧‧Transport interface
14‧‧‧充電轉換器14‧‧‧Charging converter
15‧‧‧計數器15‧‧‧ counter
2‧‧‧信號處理器2‧‧‧Signal Processor
21‧‧‧傳輸介面21‧‧‧Transport interface
22‧‧‧觸碰判斷裝置22‧‧‧Touch judgment device
23‧‧‧輸出單元23‧‧‧Output unit
24‧‧‧判斷單元24‧‧‧judging unit
25‧‧‧修正單元25‧‧‧Revising unit
P‧‧‧按鍵P‧‧‧ button
C‧‧‧感應電容C‧‧‧Induction Capacitor
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101130249A TWI462002B (en) | 2012-08-21 | 2012-08-21 | Signal processor, touch judgment device and touch judgment method |
| CN201210377972.3A CN103631460B (en) | 2012-08-21 | 2012-09-28 | Signal processor, touch judgment device and touch judgment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101130249A TWI462002B (en) | 2012-08-21 | 2012-08-21 | Signal processor, touch judgment device and touch judgment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201409328A TW201409328A (en) | 2014-03-01 |
| TWI462002B true TWI462002B (en) | 2014-11-21 |
Family
ID=50212602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101130249A TWI462002B (en) | 2012-08-21 | 2012-08-21 | Signal processor, touch judgment device and touch judgment method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103631460B (en) |
| TW (1) | TWI462002B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322939B (en) * | 2014-07-17 | 2018-04-13 | 京微雅格（北京）科技有限公司 | Capacitance touch button circuit based on FPGA |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239788B1 (en) * | 1997-08-08 | 2001-05-29 | Sharp Kabushiki Kaisha | Coordinate input device and display-integrated type coordinate input device capable of directly detecting electrostatic coupling capacitance with high accuracy |
| TW200401222A (en) * | 2002-05-17 | 2004-01-16 | 3M Innovative Properties Co | Correction of memory effect errors in force-based touch panel systems |
| US20090066670A1 (en) * | 2004-05-06 | 2009-03-12 | Steve Hotelling | Multipoint touchscreen |
| TW201115445A (en) * | 2009-10-09 | 2011-05-01 | Egalax Empia Technology Inc | Method and device for capacitive position detection |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI401597B (en) * | 2009-02-25 | 2013-07-11 | Ite Tech Inc | Method and apparatus for drift compensation of capacitive touch panel |
| CN101697106B (en) * | 2009-09-30 | 2011-10-12 | 苏州瀚瑞微电子有限公司 | Auto-correction method of touch panel |
| CN101976135A (en) * | 2010-07-27 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Calibrating method of touch screen |
-
2012
- 2012-08-21 TW TW101130249A patent/TWI462002B/en active
- 2012-09-28 CN CN201210377972.3A patent/CN103631460B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239788B1 (en) * | 1997-08-08 | 2001-05-29 | Sharp Kabushiki Kaisha | Coordinate input device and display-integrated type coordinate input device capable of directly detecting electrostatic coupling capacitance with high accuracy |
| TW200401222A (en) * | 2002-05-17 | 2004-01-16 | 3M Innovative Properties Co | Correction of memory effect errors in force-based touch panel systems |
| US20090066670A1 (en) * | 2004-05-06 | 2009-03-12 | Steve Hotelling | Multipoint touchscreen |
| TW201115445A (en) * | 2009-10-09 | 2011-05-01 | Egalax Empia Technology Inc | Method and device for capacitive position detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103631460B (en) | 2017-04-12 |
| CN103631460A (en) | 2014-03-12 |
| TW201409328A (en) | 2014-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI512566B (en) | Touch control detecting apparatus and method thereof | |
| US20170131838A1 (en) | Touch control apparatus and noise compensating circuit and method thereof | |
| KR20120112799A (en) | Touch sensor panel negative pixel compensation | |
| TWI489327B (en) | Method for compensating electromagnetic inductive pressure level | |
| US11231811B2 (en) | Touch recognition method, touch device | |
| KR20140133070A (en) | Touch sensing device and driving method thereof | |
| KR20140054971A (en) | Touch sensing system and method of reducing latency thereof | |
| JP2012242860A (en) | Touch panel device, display device, touch panel device calibration method, program, and recording medium | |
| US20180173366A1 (en) | Apparatus and method for capacitance calibration, and touch display screen | |
| TWI479402B (en) | Touch sensing circuit and method | |
| WO2019015301A1 (en) | Capacitance compensation module and method, and self-contained touch-control display panel and apparatus | |
| TWI543060B (en) | Calibration method and capacitive sensing device | |
| JP2014206868A (en) | Input device, input program and input method | |
| US9213457B2 (en) | Driving method for touch panel and touch control system | |
| TWI462002B (en) | Signal processor, touch judgment device and touch judgment method | |
| TWI530851B (en) | Touch controller and method of controlling touch controller | |
| TWI526906B (en) | Signal processing method | |
| TWI694358B (en) | Touch sensitive processing apparatus, electronic system and method thereof for configuring interconnection parameters with touch panel | |
| TWI425404B (en) | Proximity detection method for a capacitive touchpad and control method using proximity detection by a capacitive touchpad | |
| KR20160094555A (en) | Touch panel display device, Active stylus pen and controlling method thereof | |
| US20140145965A1 (en) | Touch device and driving method of touch panel thereof | |
| TW201405439A (en) | Touch key circuit with self-learning calibration | |
| US11054933B2 (en) | Touch sensor circuit and touch sensor method | |
| TWI709897B (en) | Detecting method of touch device and detecting module thereof | |
| CN104375696B (en) | The apparatus and method of touch screen induction value self-correcting |