201113796 六、發明說明： 【發明所屬之技術領域】 。 本發明是有關於一種電阻式觸碰系統，且特別是有關於一 種可分區掃描的電阻式觸碰控制系統及感測方法。 【先前技術】201113796 VI. Description of the invention: [Technical field to which the invention belongs]. The present invention relates to a resistive touch system, and more particularly to a resistive touch control system and sensing method for a partitionable scan. [Prior Art]
冤阻式觸控螢幕可以說是目前使用量最多的一種觸控技 術，其驅動原理是利用電壓降的方式來計算座標，亦即，在多 條X軸線和γ軸線上各施加一電壓來驅動。當電阻式觸控螢 幕被觸碰到時，由於迴路被導通，而會產生電壓降，而控制器 則會算出電壓降所佔的比例然後更進一步算出座標軸。 當電阻式觸控螢幕被觸碰時，會根據產生壓降之X軸線 和Y軸線的交叉來判斷觸碰點的座標。更進一步地說，當掃 2有的X軸線時’僅能得職―條乂軸線產生壓降的掃描 ===，當掃描所有的γ軸線時也僅能得到某—條γ 就+㈣f物描結果。因此，若想要判_碰點的座標， 抽線與掃描γ轴線所分別得到的兩個獅 生，闕碰8林會有關的狀況產 當實際觸碰點個觸碰點為例， 而在檢視掃描Y軸線所線與&轴線產生壓降’ 軸線產生壓降描結果時則會發現Υ】轴線與 將包括(χ,γη、^ 掃描結果而被計算出的觸碰座標 鬼點，並非實際觸碰點。=^(Xl，Yl)與(χπ)則是俗稱之 汁Μ在電阻式觸碰控制系統中必須有 IS1 3 201113796 L δ的方式來排除鬼點之存在，以免在判斷觸碰點座標時產生 混淆而導致座標判定失敗。 【發明内容】 、本發明的目的就是在提供一種電阻式觸碰控制系統，其可 以排除鬼點而準確的判斷實際觸碰點的座標。 本發明提出-種電阻式觸碰控制系統，此電阻式觸碰控制 j包括第-與第二感測模組以及處理電路。第—感測模組具 二條感測雜，錢理電關電性搞接至此二感賴乡且，並 2-感測模組感測到至少兩個觸碰點時，以所 3 = ί第—候選名單。在得到第_候選名單之後，處3 觸碰點線組’並以此二感測模組在此時感測到的 來決定當次_碰感測結果。應注意的是此處t 的二刀二魏組包括第—制餘巾感剩其巾—個觸碰點 =二以及在此感測線組附近的數條感測線組。 單中的-個前述的處理電路在第二候選名 ’ /、第候選名單中的所有觸碰點都韶宜 ，點未超過此預—離時，處理電 :的觸碰點與第-候選名單中的觸碰點計算出兩:::: 在本發明的一個會 示觸_兩個物件^連ό次的觸碰感測結果顯 物件間的直線距離是否二時’處理電路即判斷這兩個 J、於個最小距離臨界值。而當直線距 201113796 離小於最小距離臨界值時，處理 與第二感聰組所得之❹樣組電^^^第―感測模組 測線組電齡触絲舰特的妓可以利用感 在本發明的另一個實施例中，當連于續 顯示觸碰的兩個物件均處於滑動狀態時 斜率變化量是否小於-個預設變==The resistive touch screen can be said to be the most used touch technology at present. The driving principle is to use the voltage drop method to calculate the coordinates, that is, to apply a voltage to each of the X axis and the γ axis to drive . When the resistive touch screen is touched, a voltage drop occurs as the loop is turned on, and the controller calculates the ratio of the voltage drop and then further calculates the coordinate axis. When the resistive touch screen is touched, the coordinates of the touch point are determined based on the intersection of the X-axis and the Y-axis where the pressure drop is generated. Furthermore, when sweeping the X axis of 2, it can only be used for the job - the scan of the pressure drop of the strip axis ===, when scanning all the gamma axes, only a certain strip γ can be obtained + (four) f Describe the results. Therefore, if you want to judge the coordinates of the touch point, the two Lions respectively obtained by drawing the line and scanning the γ axis, the situation related to the 8 Lin will be the actual touch point, for example, When examining the scan of the Y-axis line and the & axis generating a pressure drop, the axis will produce a pressure drop. The axis will be found and the touch will be included (χ, γη, ^ scan results are calculated. Point, not the actual touch point. =^(Xl,Yl) and (χπ) are commonly known as juices. In the resistive touch control system, there must be IS1 3 201113796 L δ to eliminate the presence of ghost points. The object of the invention is to provide a resistive touch control system which can eliminate ghost points and accurately determine the coordinates of the actual touch point. The invention provides a resistive touch control system, the resistive touch control j includes first and second sensing modules and a processing circuit. The first sensing module has two sensing impurities, and the money is electrically closed. Electrically connected to this second sense of home, and 2- sense the sense of the module When at least two touch points are reached, the 3 = ί first-candidate list. After the first _ candidate list is obtained, 3 touches the dotted line group' and the two sensing modules are sensed at this time. To determine the current _ touch sensing results. It should be noted that the two-knife two-week group of t here includes the first-to-be-removed towel, which has a towel--a touch point=two and several strips near the sensing line group. Sensing line group. The above-mentioned processing circuit in the single candidate name is appropriate in all the touch points in the second candidate name / /, the candidate list, and the point of processing does not exceed this pre-disengagement Calculate two with the touch point in the first-list of candidates:::: In the case of a touch-sensitive touch of the present invention, the touch distance of the two objects is connected to the touch sensing result, and the linear distance between the objects is two. The circuit judges the two J, the minimum distance threshold, and when the straight line distance 201113796 is less than the minimum distance threshold, the processing and the second sensor group are obtained. The wire group can be utilized in another embodiment of the present invention, when connected to two consecutive touches When the sliding member are in the state change amount is smaller than the slope - == preset variable
=件間之直線距離是否為遞增或遞減電:二 ^距離為遞增，則處理電路使電阻式觸碰控制系統進行放大 ϊ ^反過來說，若兩働件間之直線距離為遞減，則處理電 路使電阻式觸碰控制系統進行縮小操作。 在本發明的另-個實施例中，當連續多次的觸碰感測結果 員不觸碰的兩錄剌處於肋狀態時，處理即判斷這兩 個物件間的直線與某-預設軸之間的夾角是否大於一個預設 角度。若此夾角大於預設角度，處理電路會使電阻式觸碰控制 系統進行影像旋轉操作。 本發明另外提出一種電阻式觸碰控制系統，此電阻式觸碰 控制系統包括觸碰面板、第一感測模組與處理電路。第一感測 模組包括多條感測線組，且每一個感測線組對應於觸碰面板上 的一塊第一感測區域。處理電路電性耦接至第一感測模組以逐 一掃描這些感測線組。其申，前後接續被掃描的兩條感測線組 互不相鄰，並在掃描第X感測線組而感測到被物件觸碰後， 對此第X感測線組的前後數條感測線組進行逐一掃描，以藉 此確認物件位於哪一個第一感測區域中。 本發明還提出一種電阻式觸碰感測方法，其適用於具有第 201113796 一感測模組及觸碰面板的電阻式觸碰控制系統中。第一感測模 組包括多條感測線組’且每一感測線組對應於觸碰面板上的」 塊第一感測區域。此電阻式觸碰感測方法首先逐一掃描前述感 測線組，而前後接續被掃描的兩條感測線組互不相鄰。當掃描 第一感測模組中的一條第X感測線組而感測到被物;觸: 後，對苐X感測線組的前後數條感測線組進行逐一掃描以確 認物件所處的第一感測區域。 本發明在掃描得到多點觸碰訊息的時候關閉與其中至少 一個觸碰點相關的部分掃描線組，並在此時進行第二次掃描並 比對掃描結果，所以可以在極短時段内營造出單點觸控的環 境，並據此得出實際觸碰點而不受到鬼點的影響。此外，本發 明部分實施射所使㈣不相崎描線掃描模式還可以有機 率加快偵測到觸碰點，減少整體掃描所需的時間。 為讓本發明之上述和其他目的、特徵和優點能更明顯易 懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 明參照圖1 ’其為根據本發明一實施例之電阻式觸碰控制 #系、統的電路方塊圖。此電阻式觸碰控制系統10包括觸控面板 1〇〇第感測模組11〇、第二感測模組120與處理電路13〇。 然’觸控面板100並非為電阻式觸碰控制系統1〇的必要元件； 換句話說，電阻式觸碰控制系統10本身可僅止於包括第一感 測模組110、第二感測模組120與處理電路13〇等產生觸碰感 測信號與處理這些感測信號的電路。 在圖1所不的實施例中，第一感測模組11〇與第二感測模 組120包括了多條感測線組，如感測線組丨、116、122與 126。每一條感測線組(如感測線組112、116、122或丨⑽包括 201113796 了一個切換器（如切換器112a、116a、122a或126a)、電容線(如 電容線112c、116c、122c或126c)、接地線(如接地線li2g、 116g、122g或126g)與輸入電位線(如輸入電位線112V、li6v、 122v或126v)。電容線進一步電性耦接到一個電容，接地線進 一步電性耦接到接地電位，而輸入電位線則進一步電性耦接到 輸入電位VDD。處理電路13〇分別透過線路112χ、116χ、122y 與126y等與第一感測模組11〇及第二感測模組12〇相電性耦 接，並根據從各線路112x、116x、122y與126y所取得的電位= Is the linear distance between the parts increasing or decreasing: If the distance is increasing, the processing circuit makes the resistive touch control system zoom in. 反 In other words, if the linear distance between the two parts is decreasing, then the processing The circuit causes the resistive touch control system to perform a reduction operation. In another embodiment of the present invention, when two consecutive recordings that are not touched by the touch sensing result person are in the rib state, the process determines the straight line between the two objects and a certain preset axis. Whether the angle between them is greater than a preset angle. If the angle is greater than the preset angle, the processing circuit causes the resistive touch control system to perform an image rotation operation. The invention further provides a resistive touch control system comprising a touch panel, a first sensing module and a processing circuit. The first sensing module includes a plurality of sensing line groups, and each of the sensing line groups corresponds to a first sensing area on the touch panel. The processing circuit is electrically coupled to the first sensing module to scan the sensing line groups one by one. The two sensing line groups that are scanned one after another are not adjacent to each other, and after sensing the X sensing line group and sensing that the object is touched, the sensing lines of the first and second sensing line groups of the X sensing line group One by one scanning is performed to thereby confirm which of the first sensing regions the object is located. The invention also provides a resistive touch sensing method, which is suitable for use in a resistive touch control system having a sensing module and a touch panel of the 201113796. The first sensing module includes a plurality of sensing line groups' and each sensing line group corresponds to a "block first sensing area" on the touch panel. The resistive touch sensing method first scans the aforementioned sensing line groups one by one, and the two sensing line groups that are successively scanned are not adjacent to each other. After scanning one of the X-th sense line groups in the first sensing module to sense the object; after touching: scanning the plurality of sensing line groups before and after the 苐X sensing line group one by one to confirm that the object is in the first A sensing area. The invention closes a part of the scan line group associated with at least one of the touch points when scanning the multi-touch information, and performs a second scan at this time and compares the scan results, so that the scan can be created in a very short period of time. A single touch environment, and based on this, the actual touch point is not affected by ghost points. In addition, part of the implementation of the present invention enables the (4) non-synchronous line scan mode to also organically speed up the detection of touch points and reduce the time required for the overall scan. The above and other objects, features and advantages of the present invention will become more <RTIgt; [Embodiment] FIG. 1 is a circuit block diagram of a resistive touch control system according to an embodiment of the present invention. The resistive touch control system 10 includes a touch panel 1 , a first sensing module 11 , a second sensing module 120 , and a processing circuit 13 . However, the touch panel 100 is not an essential component of the resistive touch control system 1; in other words, the resistive touch control system 10 itself may only include the first sensing module 110 and the second sensing module. The group 120 and the processing circuit 13 and the like generate a touch sensing signal and a circuit for processing the sensing signals. In the embodiment shown in FIG. 1, the first sensing module 11A and the second sensing module 120 include a plurality of sensing line groups, such as sensing line groups 116, 116, 122, and 126. Each sense line group (eg, sense line group 112, 116, 122 or 丨 (10) includes 201113796 a switch (such as switch 112a, 116a, 122a or 126a), a capacitor line (such as capacitor line 112c, 116c, 122c or 126c) ), a grounding wire (such as grounding wire li2g, 116g, 122g or 126g) and an input potential line (such as input potential line 112V, li6v, 122v or 126v). The capacitor wire is further electrically coupled to a capacitor, and the grounding wire is further electrically The input potential line is further electrically coupled to the input potential VDD. The processing circuit 13 transmits the first sensing module 11 and the second sensing through the lines 112χ, 116χ, 122y, and 126y, respectively. The module 12 is electrically coupled to each other and based on the potentials obtained from the respective lines 112x, 116x, 122y, and 126y.
來判斷是否有物件觸碰到相對應的感測線組、116、122或 126。 / 一奴來說’在掃描是否有物件觸碰觸控面板1〇〇之前，會 將第一感測模組11〇中的各感測線組電性輕接到輸入電位 Vdd，並將第二感測模組12〇令的各感測線組電性耦接到接地 電位。在掃描第一感測模組11〇的時候，各感測線組(112、116) 會逐一電性耦接到對應的電容線(112c、116c)，第二感測模組 120中的各感測線組則維持電性耦接到接地電位的狀態。此時 處理電路130可以藉由線路112χ^測對應的感測線組112的 電位變化’錄據所彳貞剩的電位變化來觸物件是否觸碰到 觸控面板1〇〇上對應於感測線板112的感測區域⑽。類似 的，處理電路130也可以藉由線路116χ_對應的感測線組 16,的電位變化’並根據削貞測到的電位變化來判斷物件是否 觸碰到觸控面板1〇〇上對應於感測線組116的感測區域祕。 …同樣的，在掃描第二感測模組120的時候，操作方式也如 上述操作方式一樣，相關内容在此不再重述。 接y來請參照圖2Α與圖2Β，其為根據本發明一實施例 的感測線組設置示意圖。如圖2Α所示，感測線組綱〜似 201113796 沿著水平方向排列，並以垂直方向延伸至觸控面板270内；類 似的’如圖2B所示，感測線組230〜254沿著垂直方向排列， 並以水平方向延伸至觸控面板270内。這些感測線組如圖1 一 樣各自對應於觸控面板270上的一塊感測區域(未繪示）。當掃 描沿著某一方向排列的感測線組時，必須逐一地感測這些感測 線組上的電位。然而，掃描感測線組的順序可以有所變化。舉 例來說，當要掃描沿著水平方向排列的感測線組2〇〇〜224的 時候’ 一般會是以循序的方式來進行掃描，也就是先掃描感測 線組200，再接著掃描感測線組202、感測線組204...感測線 鲁組210、感測線組212、感測線組214.··感測線組220、感測線 組222直到感測線組224。或者可以使用跳點掃描方式，例如 先掃描感測線組202，接著掃描感測線組212，然後掃描感測 線組222; —旦在其中一條感測線組發現有物件觸碰的可能(如 感測線組212的電壓有所變化），則進一步掃描此感測線組附 近的感測線組(如感測線組210與214等）’以根據所偵測到的 電壓峰值來確認物件所在的感測區域。類似的，當要掃描沿著 垂直方向排列的感測線組230〜254的時候’也可以使用上述 _ 的任一種方法來進行。 請合併參照圖3 ’其為根據本發明一實施例的電阻式觸碰 感測方法的流程圖。在此實施例中，首先以前述的任一種方法 逐一地掃描感測線組200〜224或230〜254(步驟S300)，並在 掃描完畢之後判斷是否感測到至少有兩個觸碰點存在（步驟 S302)。假若只有-個觸碰點存在，那麼就按照—般的操 法進行單賴碰的控制(步驟咖）；但如减咖至少兩 碰點，處理電路260就把偵測到有觸碰點的感測線組的位置加 以組合，進而產生具有多個觸碰點的位置座標的第一候選名單 201113796 (步驟 S304)。 在產生第一候選名單之後，處理電路26〇會將某一方向的 感測模組内的一部分感測線組的感測功能關閉，並以此狀態進 行再次的掃描（步驟S306)。具體來說，假若藉由圖2A所示的 感測線組200〜224感測到在感測線組202與感測線組222上 各有一個物件觸碰點產生，那麼處理電路260可以選擇將其中 一條感測線組關閉，也可以選擇將與其中一個物件觸碰點相關 的夕條感測線組關閉，甚或選擇將大部分的感測線組關閉，然 後進行再次的掃描。換句話說，在上述的狀況中，處理電路 260可以選擇僅關閉感測線組2〇2(也就是電壓峰值所在處）， 或者是感測線組202附近有產生電壓變化的多條感測線組，又 或者是將右半邊的感測線組200〜212關閉，甚至只保留感測 線組222的感測功能而關閉其他所有感測線組的感測功能。經 由上述的關閉感測線組的操作之後所再次進行的掃描將可排 除第一候選名單中的部分觸碰點，而經由此次掃描所得的觸碰 點則被列入在第二候選名單中以便後續處理時使用（步驟 S308)〇 • 為了達到關閉某些感測線組的感測功能的目的，本實施例 借用圖1所示的架構來進行處理。請一併參照圖丨，當要關閉 感測線組112的感測功能的時候，可以將切換器112a切換到 與切換器122a及126a所接的電位相同的電位上。例如，一般 在進行正常感測的時候會把切換器112a與u6a分別接到輸入 電位線112v與116v，並把切換器122a與126a分別接到接地 線122g與126g ;所以在要關閉感測線組112的感測功能的時 候，就可以把切換器112a接到接地線112g，如此就可以達到 關閉感測線組112感測功能的目的。 201113796 -候二mr?A〜2B與圖3，在經由步驟s3。8產生第 第一、、名早的内容來確認此二候選名跑 S3H))。若兩者相符，職據第—與第二驟 ==);反之，若兩者不相符，則有== 種做法就疋直接捨棄第—與第二闕名單而以前 觸碰感測結果來產生這一次的觸碰感測 的 =nr三次掃描，並將第三次掃描 二計算，再‘ 暑夕釦畀丨ΛΑ 一 尾彳移動置之和最小，並將座標移動 Μ ’兩個畫面定義為連續的晝面。亦即，將 兩個晝面定義為合理的移動結果。 Ο㈣决疋的 二候選名單計座驟：内:據第-與第 ===果)與前-次丄^ 於某-個預定距距離是否大 定距離，則將在步驟_計算3 不大於此預 的觸碰感測結果(步驟S316) , 標輸出為當次 預定距離，則以前 )^ ^右兩者間的距離大於此 果(步驟S317)。、觸感測結果做為當次的觸碰感測結 卜^要主的候選名單相符並非表示兩個候選名單 選名單_^===^存4^是要觸在第一候 在：二狀=說，一般物件的滑動有其規律性，所以 轉移動的狀況下只要調整好兩次掃描間的間隔時間，就可To determine if an object touches the corresponding sense line set, 116, 122 or 126. / One slave said 'Before scanning whether the object touches the touch panel 1〇〇, the sensing line groups in the first sensing module 11〇 are electrically connected to the input potential Vdd, and the second Each sensing line group of the sensing module 12 is electrically coupled to a ground potential. When the first sensing module 11 is scanned, the sensing line groups (112, 116) are electrically coupled to the corresponding capacitance lines (112c, 116c) one by one, and the senses in the second sensing module 120 The line group maintains a state of being electrically coupled to the ground potential. At this time, the processing circuit 130 can detect whether the touch object touches the touch panel 1 corresponding to the sensing line board by detecting the potential change of the corresponding potential change of the sensing line group 112 by the line 112. Sensing area (10) of 112. Similarly, the processing circuit 130 can also determine whether the object touches the touch panel 1 by the potential change of the sensing line group 16 corresponding to the line 116χ_ and according to the potential change detected by the clipping. The sensing area of the line group 116 is secret. Similarly, when the second sensing module 120 is scanned, the operation mode is also the same as the above operation mode, and the related content is not repeated here. Referring to FIG. 2A and FIG. 2A, FIG. 2 is a schematic diagram of a sensing line group setting according to an embodiment of the present invention. As shown in FIG. 2A, the sensing line group ~201113796 is arranged in the horizontal direction and extends in the vertical direction into the touch panel 270; similarly as shown in FIG. 2B, the sensing line groups 230 to 254 are along the vertical direction. Arranged and extended into the touch panel 270 in a horizontal direction. The sensing line groups respectively correspond to a sensing area (not shown) on the touch panel 270 as shown in FIG. When scanning a sense line group arranged in a certain direction, the potentials on these sense line groups must be sensed one by one. However, the order in which the sense line sets are scanned may vary. For example, when the sensing line groups 2〇〇 to 224 arranged in the horizontal direction are to be scanned, 'the scanning is generally performed in a sequential manner, that is, the sensing line group 200 is scanned first, and then the sensing line group is scanned. 202, sensing line group 204... sensing line group 210, sensing line group 212, sensing line group 214.. sensing line group 220, sensing line group 222 up to sensing line group 224. Alternatively, a jump point scanning method may be used, for example, scanning the sensing line group 202 first, then scanning the sensing line group 212, and then scanning the sensing line group 222; once, in one of the sensing line groups, it is found that there is an object touch (such as a sensing line group) The voltage of 212 changes. Then, the sensing line group (such as sensing line group 210 and 214, etc.) near the sensing line group is further scanned to confirm the sensing area where the object is located according to the detected voltage peak. Similarly, when the sensing line groups 230 to 254 arranged in the vertical direction are to be scanned, it can also be performed by any of the above methods. Please refer to FIG. 3' which is a flowchart of a resistive touch sensing method according to an embodiment of the present invention. In this embodiment, first, the sensing line groups 200 to 224 or 230 to 254 are scanned one by one by any of the foregoing methods (step S300), and it is determined whether at least two touch points are present after the scanning is completed ( Step S302). If only one touch point exists, then the control of the single touch is performed according to the general operation method (step coffee); but if the coffee is at least two touch points, the processing circuit 260 detects the touch point. The positions of the sensing line groups are combined to generate a first candidate list 201113796 having position coordinates of a plurality of touch points (step S304). After the first candidate list is generated, the processing circuit 26 turns off the sensing function of a part of the sensing line group in the sensing module in a certain direction, and performs the scanning again in this state (step S306). Specifically, if the sensing line groups 200 to 224 shown in FIG. 2A sense that an object touch point is generated on each of the sensing line group 202 and the sensing line group 222, the processing circuit 260 may select one of the pieces. The sensing line group is turned off, and it is also possible to select to turn off the day sensing line group associated with one of the object touch points, or even to select most of the sensing line group to be turned off, and then perform another scanning. In other words, in the above situation, the processing circuit 260 may select to turn off only the sensing line group 2〇2 (that is, where the voltage peak is located), or a plurality of sensing line groups in the vicinity of the sensing line group 202 that generate a voltage change. Or, the sensing line groups 200 to 212 of the right half are turned off, and even the sensing function of the sensing line group 222 is retained to turn off the sensing functions of all other sensing line groups. The scanning performed again after the operation of turning off the sensing line group described above may exclude a part of the touch points in the first candidate list, and the touch points obtained through the scanning are included in the second candidate list. Used in subsequent processing (step S308) 本 • In order to achieve the purpose of turning off the sensing function of some sensing line groups, the present embodiment uses the architecture shown in FIG. 1 for processing. Referring to the figure 丨 together, when the sensing function of the sensing line group 112 is to be turned off, the switch 112a can be switched to the same potential as the potentials connected to the switches 122a and 126a. For example, generally, when the normal sensing is performed, the switches 112a and u6a are respectively connected to the input potential lines 112v and 116v, and the switches 122a and 126a are respectively connected to the ground lines 122g and 126g; therefore, the sensing line group is to be turned off. When the sensing function of 112 is enabled, the switch 112a can be connected to the ground line 112g, so that the sensing function of the sensing line group 112 can be turned off. 201113796 - Houji mr?A~2B and FIG. 3, confirming that the second candidate name runs S3H)) by generating the first and earlier contents via step s3. If the two match, the first and second orders ==); otherwise, if the two do not match, then == the practice will directly discard the first and second list and previously touch the sensing results This time the touch sensing =nr three scans, and the third scan two calculations, and then 'the summer shackle 畀丨ΛΑ 畀丨ΛΑ 彳 move the smallest sum, and move the coordinates Μ 'two screen definition For continuous noodles. That is, the two faces are defined as reasonable moving results. Ο (4) The second candidate list of the decision block: within: according to the first - and the first === fruit) and the previous - time 丄 ^ at a certain predetermined distance distance is greater than the distance, then the calculation in step _ is not greater than The pre-touch sensing result (step S316), the target output is the current predetermined distance, and the distance between the two is greater than the result (step S317). The touch sensing result is used as the current touch sensing knot. The candidate list of the main candidate does not indicate that the two candidate list is selected. _^===^Save 4^ is to be touched in the first waiting: two Shape = said that the sliding of general objects has its regularity, so as long as the interval between scans is adjusted under the condition of moving,
[SJ J0 201113796 以使大部分的物件在兩次掃描間的移動距離小於 距離。但’假設物件在第—次掃描與第二次掃描之=的預設 起、再次落下或是已經移動㈣測線被關的 々於正提 會因為第-與第二候選名單之間的變化過大而’，麼就 的觸碰點座標。 …、在列定正確 在另一個實施例中’在前後畫面座標之距離過 在後畫面中的觸碰點的座標權重寺即定義 標權重為小;而在前後畫面座標之距的座[SJ J0 201113796 so that most objects move less than the distance between scans. But 'assuming the object is in the first scan and the second scan = preset, fall again or has moved (four) the line is closed, because the change between the first and second candidate list is too large And ', what's the touch point coordinates. ..., in the correct setting In another embodiment, 'the distance between the front and rear picture coordinates is too long. The coordinate weight of the touch point in the rear picture is defined as the coordinate weight is small; and the coordinates of the front and rear picture coordinates are small
線方向移動之：=ί:重度方 幕對角 藉此· ίί 給予目前座標位置較低之權重， 曰、·寺較為緩和之曲線並抑制波浪狀執跡之產生。 ^同時參照圖2Α、2Β與圖4。其中 二與第二候選名單是_==Move in the direction of the line: = ί: the diagonal of the heavy screen. By this, ίί gives the lower weight of the current coordinate position, and the 曰, · Temple is more moderate and suppresses the generation of wavy stalks. ^ See also Figures 2Α, 2Β and Figure 4. The second and second candidate list is _==
就先從第—與實二從產名單之後， S,。接下來，了二各選出一二固觸碰點(步驟S400與 第一盘塗 · -、2Β中的處理電路260會計算從 斷這兩名單中所選出_個觸碰點之間的距離，並判 S404) 〇 之間是否超過已經設定好的預設距離（步驟 从06。做的判斷結果為是，則流程進行到步驟 一候選名罩Φ μ 中，處理電路260判斷是否已經選擇了第 觸碰點做了距離S觸^點與從第二候選名單中目前選出的 那麼就從第-候撰二Ϊ右步驟S406所做的判斷結果為； 、名早中選出另一個觸碰點(步驟S408)， 201113796 碰點與第二候選名單中目前選出的觸碰點進 异（乂驟S404)。相反的，假若步驟S4〇6 表，第二候選名單中有某-個(任何-個= ·、，、赛候&名單中的所有觸碰點皆超過前述的預定距離，始 流程進入步驟S314以捨棄第—與第二㈣名單，並根j 次的觸碰感漸果來產生#次_碰感測結果。應注意= 此處由步驟S4G6進人到步驟S314僅為配合圖3所示的 例，此技術領域者當可知道，步驟S3M也可以是其他做^ 例如刖述與步驟S314並列的另一種觸碰結果產生 他的觸碰結果產生的做法。 无次其 假若步驟S4G4的判斷結果為否，則流程進行到 S410。在步驟S410中，處理電路260判斷是否已經選擇了第 二候選名單中的所有觸碰點與從第—候選名單中的觸碰 ίΖίί:，步驟_所做的判斷結果為否，那麼就從 、選名早中選出另一個觸碰點（步驟S412)，並使這另外撰 的觸碰點與第—候選名單巾的觸碰點4新進行距離運算(牛 =s”反的，假若步驟S41Q所做的满結果為是，則 不第一候選名單中的每一個觸碰點與第一候選名單中之任 個觸碰點之間都沒有超過前述的預定距離，因此流程進入+ =S312以根據第—與第二候選名單中該觸碰點來 ς 物件的位置。 1固 值知注意的是，在圖4所示的步驟S400〜S412中，若將 -2第二候選名單相互對調，也可以使此電阻式觸碰控制系 研* jt* $運作。 除了上述的感測方法之外，本發明所提供的電阻式觸碰柝 ’!系統還具備了其他的定位及操作方法。請參照圖5，其為ς 【s] 12 201113796 據本發明一實施例的其他定位及操作方法的流程圖。如圖5 示，當經過連續多次的觸碰感測之後，依照前述或其他方式戶 產生的的觸碰感測結果顯示了觸碰電阻式觸碰控制系統^所 個物件都處於滑動狀態的時候(步驟S500)，電阻式觸碰控制J 統（或前述包含於電阻式觸碰控制系統中的處理電路）^進二 步選擇進行分別由步驟S502、S512與S522及後續步驟所金: 的各種定位或操作方法。 "From the first to the second, after the list of production, S,. Next, each of the two selects a solid touch point (the processing circuit 260 in step S400 and the first disc coating -, 2Β calculates the distance between the selected touch points in the two lists, And judge S404) whether the preset distance exceeds the preset distance (step is from 06. If the judgment result is yes, the flow proceeds to step one candidate mask Φ μ, and the processing circuit 260 determines whether the first selection has been made. If the touch point has made the distance S touch point and the currently selected one from the second candidate list, the result of the judgment from the first-waiting second step S406 is; Step S408), 201113796 The touch point is different from the currently selected touch point in the second candidate list (step S404). Conversely, if the step S4〇6 table, the second candidate list has a certain one (any one) = ·,,, all the touch points in the game & list exceed the aforementioned predetermined distance, the process proceeds to step S314 to discard the first and second (four) lists, and the j touches of the roots are gradually generated. #次_碰感检测结果。 Note that = here step S4G6 proceeds to step S314 To cope with the example shown in FIG. 3, the person skilled in the art can know that step S3M can also be another method of making a touch result, such as a description of another touch result in parallel with step S314. If the result of the determination in the step S4G4 is NO, the flow proceeds to S410. In the step S410, the processing circuit 260 determines whether all the touch points in the second candidate list and the touches in the second candidate list have been selected. :, if the result of the determination in step _ is no, then another touch point is selected from the middle of the selected name (step S412), and the touch point of the additional written point and the touch point of the first candidate list towel are made. 4 new distance calculation (bovine=s) is reversed, if the full result of step S41Q is YES, then not every touch point in the first candidate list and any touch point in the first candidate list None of the above predetermined distances are exceeded, so the flow enters +=S312 to ς the position of the object according to the touch point in the first and second candidate lists. 1 The solid value is noted in the step shown in FIG. In S400~S412, if -2 second waiting The list is mutually tuned, and the resistive touch control system can also be operated*. In addition to the above sensing methods, the resistive touch 柝'! system provided by the present invention has other positioning and Please refer to FIG. 5 , which is a flowchart of other positioning and operation methods according to an embodiment of the present invention. As shown in FIG. 5 , after successive multiple touch sensing, according to The touch sensing result generated by the foregoing or other modes indicates that when the touch resistive touch control system is in the sliding state (step S500), the resistive touch control system (or the foregoing is included in The processing circuit in the resistive touch control system) selects two kinds of positioning or operation methods which are respectively performed by steps S502, S512 and S522 and subsequent steps. "
、在兩個物件都處於滑動狀態的時候，電阻式觸碰控制系 可以進一步判斷兩個物件之間的直線距離是否小於所設二的 —個最小距離臨界值(步驟S5〇2h假若兩個物件之間的、 離不小於所設定的最小距離臨界值，表示兩個物件&的隔， 夠使兩個觸碰點被清楚分辨出來，因此可以採用一般的定位 式來定位觸碰點的座標(步驟S 5 〇 6)。假若兩個物件^間=|方 距離小於所設定的最小距離臨界值，則表示兩個物；靠， 近’可能使兩個觸控點無法被清楚的分辨出來，所以此=太 據連續幾次掃描時所得到的感測線組電壓分佈狀钭丄= 件的位置(步驟S504)。 异物 具體來說，在兩個物件因滑行而彼此接近的時候， 硎到的感測線組電壓將可見到兩個峰值電壓的位置也^所 電壓分佈狀職比觸算以計算最新的物躲置。^ = ，就是利用二個♦值電壓在結合前之資訊，根據二 髮在結合前最後-筆資料巾各自的峰 計算二者之比例，再根據此一比例將合二為一的係 拆開。例如結合前左邊峰值電壓之面積與右邊峰值電墨g 201113796 10 : 1， 々秘後之峰值電壓左邊1G/11的部份設定為新的 邊峰值電壓，而右邊1/11的部份設定為新的右邊峰值電壓。 :觸碰：的中心也可以根據上述所計算出來的比例來進行判 ’歹1在以上所述的實施例中，就可以將結合後之峰值電壓 左邊10/11的部份重新計算重心或中心而取得新的左邊峰值電 壓位置，而結合後之峰值電壓右邊"11的部份重新計算重心 或=匕而取得新的右邊峰值電壓位置’最後再以新的左邊峰值 電壓位置與新的右邊♦值f壓位置為兩個觸碰點的座標。When both objects are in a sliding state, the resistive touch control system can further determine whether the linear distance between the two objects is less than the set minimum threshold value (step S5〇2h if two objects) The distance between the two objects is equal to the set minimum distance threshold, which means that the two touch points are clearly distinguished, so the general positioning can be used to locate the coordinates of the touch points. (Step S 5 〇 6). If the distance between two objects is less than the set minimum distance threshold, it means two things; by, near 'may make the two touch points can not be clearly distinguished Therefore, this is too much based on the position of the sensing line group voltage distribution obtained in successive scans (step S504). In particular, when the two objects approach each other due to sliding, The sense line voltage will be visible to the position of the two peak voltages. The voltage distribution is calculated to calculate the latest object to hide. ^ = , is the use of two ♦ value voltage before the combination of information, according to In Combine the peaks of the last-pen data towel to calculate the ratio of the two, and then split the system into two according to the ratio. For example, combine the area of the front left peak voltage with the right peak electric ink g 201113796 10 : 1. The 1G/11 part of the left side of the peak voltage is set to the new side peak voltage, and the 1/11 part of the right side is set to the new right side peak voltage. The center of the touch: can also be calculated according to the above. The ratio is judged as '歹1' In the above-described embodiment, the 10/11 left portion of the combined peak voltage can be recalculated to the center of gravity or the center to obtain a new left peak voltage position, and combined The part of the peak voltage right "11 recalculates the center of gravity or =匕 to obtain the new right peak voltage position'. Finally, the new left peak voltage position and the new right ♦ value f pressure position are the coordinates of the two touch points. .
請繼續參考圖5，在兩個物件都處於滑動狀態的時候，電 阻式觸碰控制系統可以進一步判斷兩個物件連線的直線斜率 的變化量疋否小於所設定的一個預設變化值(步驟S512)。若直 線斜率的變化量不小於預設變化值，則電阻式觸碰控制系統進 行一般的功能操作（步驟S530);但如果直線斜率的變化量小於 預设變化值，則電阻式觸碰控制系統還會判斷兩個物件間的直 線距離是遞增或遞減(步驟S514)。假若判斷結果顯示出兩個物 件間的直線距離為遞增，那麼電阻式觸碰控制系統就會執行放 大操作的功能(步驟S516);相反的，假若判斷結果顯示出兩個 物件間的直線距離為遞減’那麼電阻式觸碰控制系統就會執行 縮小操作的功能(步驟S518)。 圖5還表示出在兩個物件都處於滑動狀態的時候，電阻式 觸碰控制系統可以進一步判斷兩個物件連線的直線與某一個 預設軸之間的夾角是否大於所設定的預設角度(步驟S522)。假 若判斷結果顯示出前述的夾角不大於所設定的預設角度，那麼 電阻式觸碰控制系統進行一般的功能操作(步驟S530);但如果 判斷結果顯示出前述的夾角大於所設定的預設角度，那麼電阻 式觸碰控制系統就會執行影像旋轉操作的功能(步驟S524)。 201113796 需〉主意的是，步驟S522中所提及的預設軸可以是如圖2a 二圖2B中所示的水平軸η或垂直軸v ’也可以是任何預先設 =好的轴，。再者’在另一個實施例中，當掃描感測線組以取 得感測電壓值時，若當感測到某一峰值電壓小於最大峰值電壓 的某個倍率時’則將此較小的電壓定義為干擾訊號 ，並忽略此 幸乂小的電壓變化。此外’當目前畫面之觸碰點數目小於前張晝 2之觸碰點數目時’可以先保留前張畫面資料，並於後續多張 晝面之觸碰點數目均小於前張晝面之觸碰點數目時，才捨棄前 ^ 張畫面資料且輸出最新畫面資料。 & _L所述’在本發明所提供的電阻式觸碰控制系統與方法 中’利用了確認前後掃描結果是否具有一致性而能更準確的判 斷觸碰點的座標，減少座標判定失敗的機率。 雖然本發明已以較佳實施例揭露如上，然其並非用以限定 本發明’任何熟習此技藝者，在不脫離本發明之精神和範圍 内’當可作些許之更動與潤飾，因此本發明之保護範圍當視後 附之申請專利範圍所界定者為準。 【圖式簡單說明】 Φ 圖1為根據本發明—實施例之電阻式觸碰控制系統的電 路方塊圖。 圖2A與圖2B為根據本發明一實施例的感測線組設置示 意圖。 圖3為根據本發明—實施例的電阻式觸碰感測方法的流 程圖。 圖4為根據本發明一實施例在判斷第一與第二候選名單 是否相符時的施行步驟流程圖。 圖5為根據本發明一實施例的其他定位及操作方法的流Referring to FIG. 5, when both objects are in a sliding state, the resistive touch control system can further determine whether the variation of the linear slope of the two object connections is less than a preset preset value (steps). S512). If the change amount of the linear slope is not less than the preset change value, the resistive touch control system performs a general functional operation (step S530); but if the change amount of the linear slope is less than the preset change value, the resistive touch control system It is also judged that the linear distance between the two objects is incremented or decremented (step S514). If the result of the judgment shows that the linear distance between the two objects is increasing, the resistive touch control system performs the function of the zooming operation (step S516); conversely, if the judgment result shows that the straight line distance between the two objects is Decreasing 'The resistive touch control system then performs the function of the zoom-out operation (step S518). Figure 5 also shows that when both objects are in a sliding state, the resistive touch control system can further determine whether the angle between the line connecting the two objects and a certain preset axis is greater than the set preset angle. (Step S522). If the judgment result shows that the aforementioned angle is not greater than the set preset angle, the resistive touch control system performs a general functional operation (step S530); but if the judgment result indicates that the aforementioned angle is greater than the set preset angle Then, the resistive touch control system performs a function of the image rotation operation (step S524). 201113796 It is to be understood that the preset axis mentioned in step S522 may be the horizontal axis η or the vertical axis v ′ as shown in FIG. 2a and FIG. 2B or any pre-set = good axis. Furthermore, in another embodiment, when the sensing line group is scanned to obtain the sensing voltage value, if a certain peak voltage is sensed to be less than a certain magnification of the maximum peak voltage, then the smaller voltage is defined. To disturb the signal, and ignore this fortunately small voltage changes. In addition, 'when the number of touch points of the current picture is less than the number of touch points of the previous frame 2', the previous picture data can be retained first, and the number of touch points in the subsequent multiple faces is smaller than the touch of the front face. When the number of touch points is reached, the previous picture information is discarded and the latest picture data is output. In the resistive touch control system and method provided by the present invention, the coordinates of the touch point can be more accurately determined by using the confirmation whether the scan results are consistent before and after, and the probability of the coordinate determination failure is reduced. . While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a circuit block diagram of a resistive touch control system according to an embodiment of the present invention. 2A and 2B are schematic illustrations of sensing line group settings in accordance with an embodiment of the present invention. 3 is a flow diagram of a resistive touch sensing method in accordance with an embodiment of the present invention. 4 is a flow chart showing the steps of execution when determining whether the first and second candidate lists match in accordance with an embodiment of the present invention. FIG. 5 is a flow diagram of another positioning and operation method according to an embodiment of the invention.
LSI 15 201113796 程圖。 【主要元件符號說明】 ίο :電阻式觸碰控制系統 100、270 :觸控面板 110 :第一感測模組 112、116、122、126、200〜224、230〜254 :感測線組 112a、116a、122a、126a :切換器 112b、116b :感測區域 112c、116c、122c、126c :電容線 • 112g、116g、122g、126g :接地線 112v、116v、122v、126v :輸入電位線 112x、116x、122y、126y :線路 120 :第二感測模組 130、260 :處理電路 S300〜S320 :本發明一實施例的施行步驟 S400〜S412 :本發明一實施例的施行步驟 S500〜S530 :本發明一實施例的施行步驟 赢 V〇d :輸入電位 [S1 16LSI 15 201113796. [Main component symbol description] ίο : Resistive touch control system 100, 270: touch panel 110: first sensing module 112, 116, 122, 126, 200 224, 230 254: sensing line group 112a, 116a, 122a, 126a: switchers 112b, 116b: sensing regions 112c, 116c, 122c, 126c: capacitance lines 112g, 116g, 122g, 126g: ground lines 112v, 116v, 122v, 126v: input potential lines 112x, 116x , 122y, 126y: line 120: second sensing module 130, 260: processing circuit S300 to S320: implementation steps S400 to S412 of an embodiment of the present invention: implementation steps S500 to S530 of an embodiment of the present invention: the present invention The execution step of an embodiment wins V〇d: input potential [S1 16