M379306 五、新型說明： 【新型所屬之技術領域】 [0001] 本創作係有關於一種觸控輸入裝置及其内部所用觸控辨 哉方法，更特別地是一種可以排除手掌誤觸的錯誤觸控 偵測的觸控輸入裝置及觸控辨識方法。 【先前技術】 [0002] 目前市面上常見到的觸控技術，主要可分為電阻式、電 谷式、電磁式、紅外線式' 光學式或超音波式等。電阻 式的觸控面板發展已久，主要以單點式觸控技術為主， 然而電阻式觸控無法在當觸控筆盤旋於觸控面板表面上 方時即能债測出是否已靠近觸控面板，也就是沒有感應 距離，當手掌與手指同時碰觸此觸控面板時，也無法防 止手掌誤觸時的錯誤觸控偵測。電容式的觸控面板主要 以可實現多點觸控技術為主，但是這種觸控技術同樣無 法在當手指或是觸控筆放置於觸控面板上方即可偵測出 感應距離，同樣也無法防止手掌誤觸時的錯誤觸控偵測 〇 [0003] 另外，電磁式的觸控面板或稱為手寫輸入裝置，具有較 高精確度及解析度的優勢，被廣泛地運用在專業美工繪 ’圖及工業製圖等領域，其技術上可以时電池筆及無電 池筆兩種來區分。無電池筆的電磁式手寫裝置的專利主 要以Wacom公司的美國專利u s.公告號4, 789, 765、 4, 878, 553、4’ 956, 526 以及7, 005, 843 等專利為代表 ，其優點是具有感應距離’而且不怕手掌手肘壓於書寫 區之上’但是其缺點只能單點輸入書寫，而且專用的電 表單编號A0101 第3頁/共14頁 M379806 磁筆設計結構相對複雜許多，成本也較高。 [0004] 根據上述之觸控面板的缺點，為了增加觸控面板的實用 性，存在一種需求設計可以排除手掌誤觸的錯誤觸控偵 測，以及偵測盤旋能力的改良型的觸控輸入裝置。 【新型内容】 [0005] 鑒於上述之背景技術中，本創作的目的在於提供一種觸 控輸入裝置可以具有感應距離的能力。 [0006] 本創作的又一目的提供一種觸控輸入裝置可以經由專屬 的觸控指示筆來防止手掌誤觸的錯誤觸控偵測。 [0007] 根據以上所述之目的，本創作提供一種觸控輸入裝置， 其包含觸控面板、數位訊號處理器、天線迴圈陣列、掃 描控制電路與主處理器。觸控面板用於產生觸控訊號， 而數位訊號處理器用於偵測觸控訊號。天線迴圈陣列用 於接收觸控指示筆之電磁感應訊號，掃瞄控制電路用於 處理該電磁感應訊號。主處理器則根據觸控訊號與電磁 感應訊號辨識觸控指示筆正確的接觸位置，排除錯誤的 接觸位置。 [0008] 本創作還揭露另一種觸控輸入裝置，其包含觸控面板、 數位訊號處理器、天線迴圈陣列、多工器、放大電路、 取樣電路、類比數位轉換器與主處理器。觸控面板用於 產生觸控訊號，而數位訊號處理器電性連接該觸控面板 ，用於偵測觸控訊號；天線迴圈陣列用於產生觸控指示 筆之電磁感應訊號，多工器電性連接該天線迴圈陣列， 用於控制並選擇適當的一條天線以輸出電磁感應訊號。 表單編號A0101 第4頁/共14頁 M379806 放大電路用於放大電磁感應訊號，取樣電路用於取樣該 電磁感應訊號，類比數位轉換器，用於對電磁感應訊號 做類比數位的轉換。主處理器根據觸控訊號與電磁感應 afl號辨識正確的觸控位置，排除錯誤的觸控位置。 【實施方式】 [0009] 本創作的一些實施例會詳細描述如下。然而，除了詳細 描述外，本創作還可以廣泛地在其他的實施例施行，且 本創作的範圍不受限定，其以之後的專利範圍為準。 [0010] 第一圖係顯示本創作之觸控輸入裝置的方塊圖。如第一 圖所示，此觸控輪入裝置10主要包含觸控面板1〇2、天線 圈陣列1〇4、數位訊號處理|gi〇6、掃描控制電路108 與主處理器110。在本創作的觸控面板102上，無論是單 點觸控或是多點觸控方式皆可以在此觸控面板1〇2上實現 。進一步來說，此觸控面板1〇2可以是多點式的電阻式觸 控面板、或疋光學掃描式的觸控面板，只要可以實現單 點觸控或是多點觸控的觸控面板都可以應用在本創作的 觸控面板102上。當使用者碰觸到此觸控面板102時，會 產生一觸控訊號。不同於傳統的觸控輸入裝置，本創作 的觸控輸入裝置1〇在觸控面板丨〇2的下方設置了 _個天線 迴圈陣列104，此天線迴圈陣列1〇4係用於感應在觸控面 板102上書寫的觸控指示筆112所產生的電磁變化，進而 傳出電磁感應訊號。數位訊號處理器1()6電性連接觸控面 板102，其用於掃描偵測在觸控面板1〇2上觸控訊號的位 置，由於數位訊號處理器1〇6對於觸控面板1〇2的觸控偵 測為習知技藝’故對於數位訊號處理器1〇6的技術手段不 表單編號A0101 第5頁/共14頁 M379806 再贅述。掃瞄控制電路108則用於週期性短暫地發射電磁 場能量給處理觸控指示筆112，當觸控指示筆112接近觸 控面板102與天線迴圈陣列1〇4時，可因此感應出電磁感 應訊號並依其遠近而有振幅的變化。最後，數位訊號處 理器106與掃描控制電路1〇8分別電性連接主處理器11〇 ’主處理器110根據數位訊號處理器1〇6與掃据控制電路 108所傳送的觸控訊號與電磁感應訊號比對二訊號位置的 差異，並因此得以辨識出合理的觸控位置，以進行排除 手掌誤觸時的錯誤偵測。 [0011]依舊參閱第一圖，本創作之觸控輸入裝置10更包含—觸 控指示筆112。此觸控指示筆112包含一振蘯電路Π22， 在觸控指示筆112内加裝此振盪電路1122的目的是可以短 暫地接收從天線迴圈陣列104所發射的電磁場能量，當天 線迴圈陣列1 0 4停止發射能量時，振盪電路112 2因有儲存 能量，便能經由自身的線圈將訊號發射回來，當觸控指 示筆112接近觸控面板1〇2上方一定的距離之内，即可偵 測到觸控指示筆112的位置座標，進而可依此位置座標來 修正數位訊號處理器106的觸控偵測結果。另外，當使用 者使用此觸控指示筆112在觸控面板1〇2上方操作時，若 在此時使用者的手掌不小心觸碰到了觸控面板1 〇2，由於 手掌部份並不具有振盪電路1122，天線迴圈陣列1〇4對於 手掌的觸控部分的偵測並不反應，在主處理器110的處理 時會針對觸控面板102所偵測的觸控位置與天線迴圈陣列 104所偵測的觸控位置作比較，在比較的時候手掌誤觸的 部分會被視為錯誤訊號’進而將手掌誤觸的部份排除， 表單編號A0101 第6頁/共14頁 M379306 不會在電子裝置114的顯示螢幕上顯示。在此需要說明的 事，此振盪電路1122在一較佳實施例中係為LC振盪電路 結構，LC振盪電路結構為熟悉此技藝者所熟知，故不在 此對LC振盪電路結構的電路原理作詳細描述。 [0012] 第二圖係顯示本創作另一實施例之觸控輸入裝置的方塊 圖。如第二圖所示，此觸控輸入裝置20主要包含觸控面 板202、天線迴圈陣列204、數位訊號處理器206、多工 器208、放大電路210、取樣電路212、類比數位轉換器 214與主處理器216。同樣，在此實施例中，無論是單點 觸控或是多點觸控方式皆可以在此觸控面板202上實現。 當使用者碰觸到此觸控面板202時，會產生觸控訊號。不 同於第一圖之實施例，在此觸控輸入裝置20更包含多工 器208、放大電路210、取樣電路212與類比數位轉換器 214。多工器208用於接收天線迴圈陣列204的電磁感應 訊號，且可以控制天線迴圈陣列204以短暫地發射電磁場 能量給觸控指不筆218。放大電路210將電磁感應訊號放 大傳送至取樣電路212，取樣電路212取樣電磁感應訊號 的振幅，再將訊號傳送至類比數位轉換器214，經過類比 數位轉換器的訊號轉換，最後將數位的取樣電磁感應訊 號傳遞至主處理器21 6辨識。在此實施例中同樣具備觸控 指示筆218，因為此觸控指示筆218包含一振盪電路2182 ，可以接收從天線迴圈陣列204所發射的電磁場能量，當 振盪電路2182儲能之後，便會將訊號發射回來，當觸控 指示筆218在觸控面板202上方時，即可偵測到觸控指示 筆218的位置座標，除了可用於增加觸控面板202的增加 表單編號A0101 第7頁/共14頁 M379806 精確度，進而可排除其他物體不小心觸碰到觸控面板202 的錯誤觸控辨識。最後將正確的觸控位置顯示在電子裝 置220上。 [0013] 以上所述僅為本創作之較佳實施例而已，並非用以限定 本創作之申請專利範圍；凡其它未脫離本創作所揭示之 精神下所完成之等效改變或修飾，均應包含在下述之申 請專利範圍内。 【圖式簡單說明】 [0014] 第一圖係顯示本創作之觸控輸入裝置的方塊圖；以及 [0015] 第二圖係顯示本創作另一實施例之觸控輸入裝置的方塊 圖。 【主要元件符號說明】 [0016] 10觸控輸入裝置 102觸控面板 104天線迴圈陣列 106數位訊號處理器 108掃描控制電路 110主處理器 112觸控指示筆 1122振盪電路 114電子裝置 20觸控輸入裝置 202觸控面板 204天線迴圈陣列 表單編號A0101 第8頁/共14頁 M379806 206數位訊號處理器 208多工器 210放大電路 212取樣電路 214類比數位轉換器 216主處理器 218觸控指示筆 2182振盪電路 220電子裝置 表單編號A0101 第9頁/共14頁M379306 V. New Description: [New Technology Field] [0001] This creation is about a touch input device and its internal touch recognition method, and more particularly, an error touch that can eliminate palm touch. Detected touch input device and touch recognition method. [Prior Art] [0002] The touch technologies commonly used in the market are mainly classified into resistive, electric, electromagnetic, infrared, optical or ultrasonic. Resistive touch panels have been developed for a long time, mainly based on single-point touch technology. However, resistive touch cannot detect whether the touch pen is close to the touch when it is hovered over the surface of the touch panel. The panel, that is, there is no sensing distance, when the palm and the finger touch the touch panel at the same time, it cannot prevent the wrong touch detection when the palm is accidentally touched. The capacitive touch panel is mainly based on multi-touch technology, but the touch technology can not detect the sensing distance when the finger or the stylus is placed on the touch panel. Unable to prevent false touch detection when palms are accidentally touched [0003] In addition, electromagnetic touch panels, or handwriting input devices, have the advantages of high precision and resolution, and are widely used in professional art painting. In the fields of graphics and industrial graphics, it can be technically distinguished between battery pens and batteryless pens. The patent for the electromagnetic handwriting device without battery pen is mainly represented by Wacom's US patents s. Bulletin Nos. 4, 789, 765, 4, 878, 553, 4' 956, 526 and 7, 005, 843, etc. The advantage is that it has a sensing distance 'and is not afraid of the palm elbow pressing on the writing area' but its shortcomings can only be written at a single point, and the dedicated electric form number A0101 page 3 / 14 pages M379806 magnetic pen design structure relative It is much more complicated and costs more. [0004] According to the shortcomings of the touch panel described above, in order to increase the practicality of the touch panel, there is a need for an improved touch input device that can eliminate false touch detection of the palm of the hand and detect the hovering ability. . [New Content] [0005] In view of the above background art, it is an object of the present invention to provide a touch input device that can have an ability to sense distance. Another object of the present invention is to provide an error touch detection in which a touch input device can prevent a palm from being accidentally touched by a dedicated touch stylus. [0007] According to the above objects, the present invention provides a touch input device including a touch panel, a digital signal processor, an antenna loop array, a scan control circuit, and a main processor. The touch panel is used to generate touch signals, and the digital signal processor is used to detect touch signals. The antenna loop array is configured to receive an electromagnetic induction signal of the touch stylus, and the scan control circuit is configured to process the electromagnetic induction signal. The main processor recognizes the correct contact position of the touch stylus according to the touch signal and the electromagnetic induction signal, and eliminates the wrong contact position. [0008] The present disclosure also discloses another touch input device, which comprises a touch panel, a digital signal processor, an antenna loop array, a multiplexer, an amplifying circuit, a sampling circuit, an analog digital converter and a main processor. The touch panel is used to generate a touch signal, and the digital signal processor is electrically connected to the touch panel for detecting the touch signal; the antenna loop array is used to generate the electromagnetic induction signal of the touch stylus, and the multiplexer The antenna loop array is electrically connected to control and select an appropriate antenna to output an electromagnetic induction signal. Form No. A0101 Page 4 of 14 M379806 The amplifying circuit is used to amplify the electromagnetic induction signal, the sampling circuit is used to sample the electromagnetic induction signal, and the analog digital converter is used for analog digital conversion of the electromagnetic induction signal. The main processor recognizes the correct touch position according to the touch signal and the electromagnetic induction afl number, and eliminates the wrong touch position. [Embodiment] Some embodiments of the present creation will be described in detail below. However, the present invention can be widely practiced in other embodiments, and the scope of the present invention is not limited, and the scope of the following patents will prevail. [0010] The first figure shows a block diagram of the touch input device of the present invention. As shown in the first figure, the touch wheeling device 10 mainly includes a touch panel 1〇2, an antenna array 1〇4, a digital signal processing unit gi〇6, a scan control circuit 108, and a main processor 110. In the touch panel 102 of the present invention, both single-touch and multi-touch methods can be implemented on the touch panel 1〇2. Further, the touch panel 1〇2 can be a multi-point resistive touch panel or an optical scanning touch panel, as long as the touch panel can be single-touch or multi-touch. Both can be applied to the touch panel 102 of the present creation. When the user touches the touch panel 102, a touch signal is generated. Different from the conventional touch input device, the touch input device 1 of the present invention is provided with an antenna loop array 104 under the touch panel 丨〇 2, and the antenna loop array 1 〇 4 is used for sensing The electromagnetic stylus generated by the touch stylus 112 written on the touch panel 102 transmits an electromagnetic induction signal. The digital signal processor 1 (6) is electrically connected to the touch panel 102 for scanning and detecting the position of the touch signal on the touch panel 1〇2, because the digital signal processor 1〇6 is for the touch panel 1〇 The touch detection of 2 is a conventional technique. Therefore, the technical means for the digital signal processor 1〇6 is not the form number A0101, page 5/14 pages, M379806. The scan control circuit 108 is configured to periodically emit electromagnetic field energy to the touch stylus 112. When the touch stylus 112 approaches the touch panel 102 and the antenna loop array 1〇4, the electromagnetic induction can be induced. The signal varies in amplitude depending on its distance. Finally, the digital signal processor 106 and the scan control circuit 1 8 are electrically connected to the main processor 11 〇 'the touch signal and electromagnetic transmitted by the main processor 110 according to the digital signal processor 1 〇 6 and the scan control circuit 108 . The difference between the sense signal and the position of the second signal, and thus the reasonable touch position can be recognized, to eliminate the error detection when the palm is mistaken. [0011] Still referring to the first figure, the touch input device 10 of the present invention further includes a touch stylus 112. The touch stylus 112 includes a vibrating circuit Π22. The oscillating circuit 1122 is added to the touch stylus 112 for temporarily receiving the electromagnetic field energy emitted from the antenna loop array 104. When the energy is stopped, the oscillating circuit 112 2 can transmit the signal through its own coil due to the stored energy. When the touch stylus 112 is close to a certain distance above the touch panel 1 〇 2, The position coordinate of the touch stylus 112 is detected, and the touch detection result of the digital signal processor 106 can be corrected according to the position coordinate. In addition, when the user uses the touch stylus 112 to operate over the touch panel 1 , 2, if the user's palm accidentally touches the touch panel 1 〇 2 at this time, since the palm portion does not have The oscillating circuit 1122, the antenna loop array 〇4 does not react to the detection of the touch portion of the palm, and the touch position and the antenna loop array detected by the touch panel 102 during the processing of the main processor 110 The detected touch positions of the 104 are compared. When the comparison is made, the part of the palm that is mistakenly touched is regarded as the error signal', and the part that the palm is mistakenly touched is excluded. Form No. A0101 Page 6 of 14 M379306 Displayed on the display screen of the electronic device 114. In this case, the oscillating circuit 1122 is an LC oscillating circuit structure in a preferred embodiment. The LC oscillating circuit structure is well known to those skilled in the art, and therefore the circuit principle of the LC oscillating circuit structure is not detailed here. description. [0012] The second figure shows a block diagram of a touch input device of another embodiment of the present creation. As shown in the second figure, the touch input device 20 mainly includes a touch panel 202 , an antenna loop array 204 , a digital signal processor 206 , a multiplexer 208 , an amplifying circuit 210 , a sampling circuit 212 , and an analog digital converter 214 . With the main processor 216. Also, in this embodiment, either single-touch or multi-touch can be implemented on the touch panel 202. When the user touches the touch panel 202, a touch signal is generated. Different from the embodiment of the first figure, the touch input device 20 further includes a multiplexer 208, an amplifying circuit 210, a sampling circuit 212, and an analog digital converter 214. The multiplexer 208 is configured to receive electromagnetic induction signals from the antenna loop array 204 and can control the antenna loop array 204 to briefly emit electromagnetic field energy to the touch finger 218. The amplifying circuit 210 amplifies the electromagnetic induction signal to the sampling circuit 212. The sampling circuit 212 samples the amplitude of the electromagnetic induction signal, and then transmits the signal to the analog digital converter 214, through the signal conversion of the analog digital converter, and finally the digital sampling electromagnetic The inductive signal is passed to the main processor 21 6 for identification. In this embodiment, the touch stylus 218 is also provided, because the touch stylus 218 includes an oscillating circuit 2182 that can receive the electromagnetic field energy emitted from the antenna loop array 204. When the oscillating circuit 2182 stores energy, The signal is transmitted back. When the touch stylus 218 is above the touch panel 202, the position coordinate of the touch stylus 218 can be detected, except that the added form number A0101 can be used to increase the touch panel 202. A total of 14 pages of M379806 accuracy, which can eliminate the wrong touch recognition of other objects accidentally touching the touch panel 202. Finally, the correct touch position is displayed on the electronic device 220. [0013] The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention; any other equivalent changes or modifications that have been made without departing from the spirit of the present invention should be It is included in the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0014] The first figure shows a block diagram of the touch input device of the present invention; and [0015] The second figure shows a block diagram of the touch input device of another embodiment of the present creation. [Main component symbol description] [0016] 10 touch input device 102 touch panel 104 antenna loop array 106 digital signal processor 108 scan control circuit 110 main processor 112 touch stylus 1122 oscillating circuit 114 electronic device 20 touch Input device 202 touch panel 204 antenna loop array form number A0101 page 8 / 14 pages M379806 206 digital signal processor 208 multiplexer 210 amplification circuit 212 sampling circuit 214 analog digital converter 216 main processor 218 touch indication Pen 2182 Oscillation Circuit 220 Electronic Device Form No. A0101 Page 9 of 14