TWI486855B - An input device and signal detection method for switching a capacitive sensing and electromagnetic - Google Patents
An input device and signal detection method for switching a capacitive sensing and electromagnetic Download PDFInfo
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一種具有雙模式的輸入裝置與其訊號偵測、切換方法,特別有關於一種具有電容感應與電磁感應的輸入裝置與訊號偵測、切換方法。The invention relates to a dual-mode input device and a signal detecting and switching method thereof, and particularly relates to an input device and a signal detecting and switching method with capacitive sensing and electromagnetic induction.
隨著科技的快速發展,使得人機介面的輸入種類也隨之增加。除了過去的鍵盤與滑鼠的輸入裝置外,另有觸控輸入的方式被提出。一般而言,觸控輸入的種類還可以劃分為電磁式觸控、電阻式觸控與電容式觸控等方式。With the rapid development of technology, the input type of human-machine interface has also increased. In addition to the past keyboard and mouse input devices, a touch input method has been proposed. In general, the types of touch inputs can also be classified into electromagnetic touch, resistive touch, and capacitive touch.
電磁式觸控是由觸控板與數位筆之間的互動進而得到相應的輸入訊號。通常感應天線會以二維陣列的方式舖設於觸控板中。電磁式觸控的運作原理是由觸控板與數位筆之間的距離變化,使得感應天線與數位筆兩者間的磁力也會隨之改變。觸控板可以根據感應天線的磁力變化,進一步得到數位筆在觸控板上的位置。Electromagnetic touch is the interaction between the touchpad and the digital pen to get the corresponding input signal. Usually, the sensing antennas are laid in the touch panel in a two-dimensional array. The principle of electromagnetic touch operation is the change of the distance between the touch panel and the digital pen, so that the magnetic force between the sensing antenna and the digital pen will also change. The touchpad can further obtain the position of the digital pen on the touchpad according to the magnetic change of the sensing antenna.
而電容式觸控與電阻式觸控的運作方式是藉由手指上的靜電或按壓,使得觸控板上手指位置的電位會產生改變。觸控板中也會設置二維的感應線圈。當觸控板上的某一電位發生變化時,可以透過感應線圈判斷出手指對應的位置。The capacitive touch and resistive touch operation is caused by static electricity or pressing on the finger, so that the potential of the finger position on the touch panel changes. A two-dimensional induction coil is also placed in the touchpad. When a certain potential on the touch panel changes, the position corresponding to the finger can be determined through the induction coil.
電磁式觸控與電容式觸控所採用的感應天線與感應線圈是分屬不同架構。因此習知技術中為將這兩種觸控方式結合在一起,則在觸控板上分別舖設感應天線與感應線圈。由於感應天線與感 應線圈分屬於兩層,所以觸控板的體積難以被減縮,而且製作成本也會連帶的增加。The sensing antenna and the induction coil used in electromagnetic touch and capacitive touch are different structures. Therefore, in the prior art, in order to combine the two touch modes, the sensing antenna and the induction coil are respectively disposed on the touch panel. Due to the sensing antenna and sense The coil should be divided into two layers, so the volume of the touch panel is difficult to be reduced, and the manufacturing cost is also increased.
鑒於以上的問題,本發明在於提供一種具有電容感應與電磁感應的輸入裝置,可以透過同一組天線陣列進而實現電容觸控與電磁觸控的輸入裝置。In view of the above problems, the present invention provides an input device having capacitive sensing and electromagnetic induction, which can realize capacitive touch and electromagnetic touch input devices through the same set of antenna arrays.
本發明所揭露之具有電容感應與電磁感應的輸入裝置包括:多組第一天線串列、多組第二天線串列、第一切換開關、第二切換開關與處理模組。每一第一天線串列係由多個天線單元所串接,每一第一天線串列均具有第一端與第二端;每一第二天線串列係由多個天線單元所串接,每一第二天線串列均具有第三端與第四端;第一切換開關具有多個第一接腳,每一第一接腳連接於第一天線串列的第一端;第二切換開關具有多個第二接腳,每一第二接腳連接於第二天線串列的第三端;處理模組具有多個接收接腳、多個傳輸接腳,根據第一端的順序並將每一接收接腳依序連接於每一第一天線串列的第二端,根據第三端的順序並每一傳輸接腳依序連接於每一第二天線串列的第四端。處理模組執行電容觸控模式時,處理模組驅動第一切換開關與第二切換開關將第一天線串列與第二天線串列設為開路;處理模組執行電磁掃描模式時,處理模組從第一切換開關中選擇至少一組兩個第一端,並將每一組的兩個第一端進行連接,使得對應的第一天線串列形成迴路狀態,處理模組從第二切換開關中選擇至少一組兩個第三 端,並將每一組的兩個第三端進行連接,使得對應的第二天線串列形成迴路狀態。The input device with capacitive sensing and electromagnetic induction disclosed by the invention comprises: a plurality of sets of first antenna series, a plurality of sets of second antenna series, a first switching switch, a second switching switch and a processing module. Each of the first antenna strings is serially connected by a plurality of antenna elements, each of the first antenna strings has a first end and a second end; each second antenna string is composed of a plurality of antenna elements The first antenna switch has a plurality of first pins, and each of the first pins is connected to the first antenna string. The second switching switch has a plurality of second pins, each of the second pins is connected to the third end of the second antenna string; the processing module has a plurality of receiving pins and a plurality of transmitting pins. According to the order of the first end, each receiving pin is sequentially connected to the second end of each first antenna string, and each transmission pin is sequentially connected to each second day according to the order of the third end The fourth end of the line string. When the processing module performs the capacitive touch mode, the processing module drives the first switching switch and the second switching switch to set the first antenna series and the second antenna series to be open; when the processing module performs the electromagnetic scanning mode, The processing module selects at least one set of two first ends from the first switch, and connects the two first ends of each group, so that the corresponding first antenna series forms a loop state, and the processing module Select at least one of the two switches in the second switch And connecting the two third ends of each group such that the corresponding second antenna series form a loop state.
本發明另提出一種具有電容感應與電磁感應的輸入裝置的訊號偵測與切換方法,其係包括以下步驟:將輸入裝置切換成電容觸控模式,並偵測是否接收觸控輸入訊號;在電容觸控模式中且每經過第一期間後,輸入裝置切換電磁快速掃描模式,並在電磁快速掃描模式運作的第二期間中偵測是否有電磁觸控訊號輸入;若在第二期間中未收到電磁觸控訊號,將電磁快速掃描模式切換為電容觸控模式;若在第二期間中接收到電磁觸控訊號,將電磁快速掃描模式切換為電磁精確掃描模式;在電磁精確掃描模式中且經過第三期間後未接收到電磁觸控訊號時,則從電磁精確掃描模式切換為電容觸控模式。The invention further provides a signal detecting and switching method for an input device with capacitive sensing and electromagnetic induction, which comprises the steps of: switching an input device into a capacitive touch mode and detecting whether a touch input signal is received; In the touch mode and after the first period, the input device switches the electromagnetic fast scan mode, and detects whether there is electromagnetic touch signal input during the second period of operation of the electromagnetic fast scan mode; if not in the second period To the electromagnetic touch signal, the electromagnetic fast scan mode is switched to the capacitive touch mode; if the electromagnetic touch signal is received in the second period, the electromagnetic fast scan mode is switched to the electromagnetic precise scan mode; in the electromagnetic precise scan mode and When the electromagnetic touch signal is not received after the third period, the electromagnetic precise scanning mode is switched to the capacitive touch mode.
本發明所提出的具有電容感應與電磁感應的輸入裝置與訊號偵測、切換方法可以透過同一組天線陣列實現電磁觸控與電容觸控的輸入,因此本發明除了可以降低觸控板的體積,同時也實現兩種觸控輸入的即時切換。The input device with the capacitive sensing and the electromagnetic induction and the signal detecting and switching method of the present invention can realize the input of the electromagnetic touch and the capacitive touch through the same set of antenna arrays. Therefore, the present invention can reduce the volume of the touch panel. Simultaneous switching of the two touch inputs is also achieved.
有關本發明的特徵與實作,茲配合圖式作最佳實施例詳細說明如下。The features and implementations of the present invention are described in detail below with reference to the drawings.
請參考第1圖所示,其係為本發明之輸入裝置的架構示意圖。輸入裝置100包括天線陣列110、第一切換開關120、第二切換開關130與處理模組140。處理模組140連接於天線陣列110、第一 切換開關120與第二切換開關130。處理模組140具有微控制器141、多個傳輸接腳142與多個接收接腳143。在第1圖中的處理模組140係以黑色虛線進行框選。微控制器141連接於傳輸接腳142與接收接腳143。在第1圖中的傳輸接腳142係以匯流排的方繪製示意(而所述的匯流排可以是但不限定為杜邦接頭的方式)。同理,接收腳位143也是可以透過前述的方式實現。而除了前述的實現方式外,也可以透過多支腳位的方式實現傳輸接腳142與接收腳位143。Please refer to FIG. 1 , which is a schematic diagram of the architecture of the input device of the present invention. The input device 100 includes an antenna array 110, a first changeover switch 120, a second changeover switch 130, and a processing module 140. The processing module 140 is connected to the antenna array 110, first The switch 120 and the second changeover switch 130 are switched. The processing module 140 has a microcontroller 141, a plurality of transmission pins 142 and a plurality of receiving pins 143. The processing module 140 in Fig. 1 is framed by a black dotted line. The microcontroller 141 is coupled to the transmit pin 142 and the receive pin 143. The transmission pins 142 in Figure 1 are illustrated in terms of squares of busbars (and the busbars may be, but are not limited to, DuPont connectors). Similarly, the receiving pin 143 can also be implemented in the foregoing manner. In addition to the foregoing implementations, the transmission pin 142 and the reception pin 143 can also be implemented by means of multiple pins.
第一切換開關120具有多個第一接腳122。第一切換開關120可將所選的兩個第一接腳122進行連接。第二切換開關130具有多個第二接腳132。第二切換開關130亦可將所選的兩個第二接腳132進行連接或斷開。前述的將所選接腳進行連接的判斷將於後文詳述。The first changeover switch 120 has a plurality of first pins 122. The first changeover switch 120 can connect the selected two first pins 122. The second changeover switch 130 has a plurality of second pins 132. The second switch 130 can also connect or disconnect the selected two second pins 132. The foregoing determination of connecting the selected pins will be described later in detail.
本發明的天線陣列110是由多組第一天線串列111與多組第二天線串列112以二維陣列排列的方式所構成。在第1圖中的菱形結構視為天線單元。每一組橫向排列的天線單元(實線框)則構成第一天線串列111。每一組縱向排列的天線單元(虛線框)則構成第二天線串列112。第一天線串列111具有第一端(未標號)與第二端(未標號),第二天線串列112具有第三端(未標號)與第四端(未標號)。第1圖中第一天線串列111與第二天線串列112雖屬於同一層,但兩天線串列的接線是不相互干涉。The antenna array 110 of the present invention is constructed by arranging a plurality of sets of first antenna strings 111 and a plurality of sets of second antenna strings 112 in a two-dimensional array. The diamond structure in Fig. 1 is regarded as an antenna unit. Each set of laterally aligned antenna elements (solid line frames) constitutes a first antenna string 111. Each set of longitudinally aligned antenna elements (dashed boxes) constitutes a second antenna string 112. The first antenna string 111 has a first end (not labeled) and a second end (not labeled), and the second antenna string 112 has a third end (not labeled) and a fourth end (not labeled). In the first figure, the first antenna series 111 and the second antenna series 112 belong to the same layer, but the wirings of the two antenna strings do not interfere with each other.
在第1圖中的第一天線串列111與第二天線串列112的數量 僅本說明書中的示意說明,並非僅局限於此。為方便說明第一天線串列111的數量在此將其定義為第一數量,而第二天線串列112的數量係為第二數量。天線陣列110分別連接於第一切換開關120與第二切換開關130。The number of the first antenna string 111 and the second antenna string 112 in FIG. Only the schematic descriptions in this specification are not limited thereto. For convenience, the number of first antenna strings 111 is herein defined as a first number, and the number of second antenna strings 112 is a second number. The antenna array 110 is connected to the first changeover switch 120 and the second changeover switch 130, respectively.
第一天線串列111的第一端連接於第一切換開關120的第一接腳122,第一天線串列111的第二端連接於處理模組140的接收接腳143。其中,第一接腳122與接收接腳143的數量均等於第一數量。換句話說,每一個第一天線串列111連接各自的第一接腳122與接收接腳143。第二天線串列112的第三端連接於第二切換開關130的第二接腳132,第二天線串列112的第四端連接於處理模組140的傳輸接腳142。其中,第二接腳132與傳輸接腳142的數量均等於第二數量。每一個第二天線串列112連接各自的第二接腳132與傳輸接腳142。The first end of the first antenna string 111 is connected to the first pin 122 of the first switch 120, and the second end of the first antenna string 111 is connected to the receiving pin 143 of the processing module 140. The number of the first pin 122 and the receiving pin 143 is equal to the first number. In other words, each of the first antenna strings 111 connects the respective first pin 122 and the receiving pin 143. The third end of the second antenna string 112 is connected to the second pin 132 of the second switch 130, and the fourth end of the second antenna string 112 is connected to the transmission pin 142 of the processing module 140. The number of the second pin 132 and the transmission pin 142 are both equal to the second number. Each of the second antenna strings 112 is connected to a respective second pin 132 and a transmission pin 142.
本發明的輸入裝置100具有電容觸控模式與電磁掃描模式的運作模式,而電磁掃描模式又可以劃分為電磁快速掃描模式與電磁精確掃描模式。在電容觸控模式下,處理模組140選擇接收接腳143,並且驅動第一切換開關120將所對應的第一接腳122切換成浮接(floating)的狀態。選擇接腳的方式可以是選擇兩相鄰接腳,也可以是選擇一定間隔的兩接腳。請參考第2A圖所示,其係為本發明的所選的第一接腳122切換為浮接的示意圖。在第2A圖中接收接腳143係分別為RX1、RX2、RX3、RX4、RX5、RX6、RX7與RX8。並且接收接腳RX1、RX2、RX3、RX4、RX5、RX6、 RX7與RX8對應第一接腳α、β、γ、δ、ε、ζ、η與θ。假設微控制器141選擇接收接腳RX1、RX3、RX5與RX7,則微控制器141向第一切換開關120的第一接腳α、γ、ε與η發出浮接的命令。第一切換開關120接獲浮接的命令後,第一切換開關120將所選的第一天線串列111的第二端與第一接腳α、γ、ε與η進行浮接(在第2A圖中係以黑色粗線代表所選出的第一天線串列111來進行浮接)。The input device 100 of the present invention has an operation mode of a capacitive touch mode and an electromagnetic scan mode, and the electromagnetic scan mode can be further divided into an electromagnetic fast scan mode and an electromagnetic precise scan mode. In the capacitive touch mode, the processing module 140 selects the receiving pin 143 and drives the first switching switch 120 to switch the corresponding first pin 122 to a floating state. The way to select the pin can be to select two adjacent pins, or to select two pins with a certain interval. Please refer to FIG. 2A, which is a schematic diagram of switching the selected first pin 122 of the present invention to floating. In Fig. 2A, the receiving pins 143 are RX1, RX2, RX3, RX4, RX5, RX6, RX7 and RX8, respectively. And receiving pins RX1, RX2, RX3, RX4, RX5, RX6, RX7 and RX8 correspond to the first pins α, β, γ, δ, ε, ζ, η, and θ. Assuming that the microcontroller 141 selects the receiving pins RX1, RX3, RX5, and RX7, the microcontroller 141 issues a floating command to the first pins α, γ, ε, and n of the first changeover switch 120. After the first switch 120 receives the floating command, the first switch 120 floats the second end of the selected first antenna string 111 with the first pins α, γ, ε, and η (at In Fig. 2A, the selected first antenna string 111 is represented by a thick black line for floating).
同理,處理模組140也可以選擇傳輸接腳142並對相應的第二接腳132進行浮接的處理。請參考第2B圖所示,其係為本發明的第二接腳的浮接示意圖。在第2B圖中傳輸接腳142係分別為TX1、TX2、TX3、TX4、TX5、TX6、TX7與TX8。而每一傳輸腳位所對應的第二腳位132分別為A、B、C、D、E、F、G與H。假設微控制器141選擇傳輸接腳TX1、TX3、TX5與TX7,則微控制器141向第二切換開關130的第二接腳A、C、E與G發出浮接的命令。微控制器141可以根據前述浮接的第一天線串列111與第二天線串列112,用以偵測觸控輸入訊號的所在位置。其中,觸控輸入訊號係為使用者透過手指按壓或相關工具在輸入裝置100上碰觸時所產生的位置訊號。Similarly, the processing module 140 can also select the transfer pin 142 and perform the floating process of the corresponding second pin 132. Please refer to FIG. 2B, which is a schematic diagram of the floating connection of the second pin of the present invention. In Figure 2B, transmission pins 142 are TX1, TX2, TX3, TX4, TX5, TX6, TX7, and TX8, respectively. The second pin 132 corresponding to each transmission pin is A, B, C, D, E, F, G and H, respectively. Assuming that the microcontroller 141 selects the transmission pins TX1, TX3, TX5, and TX7, the microcontroller 141 issues a floating command to the second pins A, C, E, and G of the second changeover switch 130. The microcontroller 141 can detect the location of the touch input signal according to the first floating antenna array 111 and the second antenna serial array 112. The touch input signal is a position signal generated when the user touches the input device 100 through a finger press or a related tool.
除了前述的浮接方式,本發明的處理模組140在電磁掃描模式下對所選的兩隻第一接腳122(或兩隻第二接腳132)進行連通。請參考第2C圖與第2D圖所示,其係分別為本發明對第一接腳與第二接腳的連接示意圖。在第2C圖中微控制器141選擇接收接腳 RX1、RX3、RX5與RX7,則微控制器141向第一切換開關120的第一接腳α、γ、ε與η發出連接的命令。而第一切換開關120在接獲連接的命令後,第一切換開關120會將所選的兩隻第一接腳122進行連接,使得微控制器141、兩第一天線串列111與第一切換開關120形成一個迴路(loop)。在第2C圖中係將RX1與RX3相接,而RX5與RX7相互連接。In addition to the aforementioned floating mode, the processing module 140 of the present invention communicates the selected two first pins 122 (or two second pins 132) in the electromagnetic scanning mode. Please refer to FIG. 2C and FIG. 2D , which are respectively a schematic diagram of the connection between the first pin and the second pin of the present invention. In the 2C figure, the microcontroller 141 selects the receiving pin. When RX1, RX3, RX5, and RX7, the microcontroller 141 issues a command to connect the first pins α, γ, ε, and η of the first changeover switch 120. After the first switch 120 receives the connection command, the first switch 120 connects the selected two first pins 122, so that the microcontroller 141, the two first antenna strings 111 and the first A switch 120 forms a loop. In Fig. 2C, RX1 and RX3 are connected, and RX5 and RX7 are connected to each other.
第2D圖中微控制器141選擇傳輸接腳TX1、TX3、TX5與TX7,則微控制器141向第二切換開關130的第二接腳A、C、E與G發出連接的命令。第二切換開關130將TX1與TX3相互連接,而TX5與TX7相互連接。微控制器141可以根據所述迴路的第一天線串列111與第二天線串列112,用以接收電磁觸控訊號。其中,電磁觸控訊號的產生係由數位筆在輸入裝置100上點選(或碰觸)時所產生的位置訊號。In the second diagram, the microcontroller 141 selects the transmission pins TX1, TX3, TX5 and TX7, and the microcontroller 141 issues a command to connect the second pins A, C, E and G of the second changeover switch 130. The second switch 130 connects TX1 and TX3 to each other, and TX5 and TX7 are connected to each other. The microcontroller 141 can receive the electromagnetic touch signal according to the first antenna string 111 and the second antenna string 112 of the loop. The electromagnetic touch signal is generated by a position signal generated when the digital pen clicks (or touches) on the input device 100.
而電磁快速掃描模式與電磁精確掃描模式的區別在於,兩隻第一接腳122(與兩隻第二接腳132)的選擇方式。由於第一接腳122(與第二接腳132)的數量過於龐大,因此若以兩相鄰的第一接腳122的方式逐次掃描,這樣的運作時間將會造成掃描時間過長。因此在電磁快速掃描模式下,微控制器141可以按照一定間隔N隻接腳的方式選擇兩第一接腳122(或是兩隻第二接腳132),其中N大於或等於2。The difference between the electromagnetic fast scan mode and the electromagnetic precise scan mode is the manner in which the two first pins 122 (and the two second pins 132) are selected. Since the number of the first pins 122 (and the second pins 132) is too large, if the scanning is performed successively by the two adjacent first pins 122, such an operation time will cause the scanning time to be too long. Therefore, in the electromagnetic fast scan mode, the microcontroller 141 can select two first pins 122 (or two second pins 132) in a manner of N pins at a certain interval, where N is greater than or equal to 2.
以前文所舉例子進一步說明,微控制器141可以從傳輸腳位RX1、RX2、RX3、RX4、RX5、RX6、RX7與RX8中選擇RX1 與RX4為一組,RX4與RX7為一組的方式作為電磁快速掃描模式的選擇依據。Further exemplified in the foregoing, the microcontroller 141 can select RX1 from the transmission pins RX1, RX2, RX3, RX4, RX5, RX6, RX7 and RX8. As a group with RX4, RX4 and RX7 are a group of methods as the basis for selecting the electromagnetic fast scan mode.
相對於電磁快速掃描模式而言,電磁精確掃描模式為能準確的偵測數位筆在輸入裝置100上的位置。因此微控制器141就會選擇相鄰間距小的第一接腳122(第二接腳132)的方式進行偵測。而相鄰間距則可以根據輸入裝置100的第一接腳122(第二接腳132)的整體數量所決定。Compared with the electromagnetic fast scan mode, the electromagnetic precise scan mode can accurately detect the position of the digital pen on the input device 100. Therefore, the microcontroller 141 selects the first pin 122 (second pin 132) with a small adjacent pitch for detection. The adjacent spacing may be determined according to the overall number of the first pins 122 (second pins 132) of the input device 100.
請同時參考第3圖與第4圖所示,其係分別為本發明之運作流程示意圖與狀態切換示意圖。本發明的運作流程包括以下步驟:步驟S310:將輸入裝置切換成電容觸控模式,並偵測是否接收觸控輸入訊號;步驟S320:在電容觸控模式中且每經過第一期間後,輸入裝置切換電磁快速掃描模式,並在電磁快速掃描模式運作的第二期間中偵測是否有電磁觸控訊號輸入;步驟S330:若在第二期間中未收到電磁觸控訊號,將電磁快速掃描模式切換為電容觸控模式;步驟S340:若在第二期間中接收到電磁觸控訊號,將電磁快速掃描模式切換為電磁精確掃描模式;以及步驟S350:在電磁精確掃描模式中且經過第三期間後未接收到電磁觸控訊號時,則從電磁精確掃描模式切換為電容觸控模式。Please refer to FIG. 3 and FIG. 4 at the same time, which are respectively a schematic diagram of the operational flow diagram and state switching of the present invention. The operation process of the present invention includes the following steps: Step S310: Switching the input device to the capacitive touch mode and detecting whether the touch input signal is received; Step S320: Entering in the capacitive touch mode and after each first period of time The device switches the electromagnetic fast scan mode and detects whether there is electromagnetic touch signal input during the second period of operation of the electromagnetic fast scan mode; step S330: if the electromagnetic touch signal is not received during the second period, the electromagnetic quick scan is performed The mode is switched to the capacitive touch mode; step S340: if the electromagnetic touch signal is received in the second period, the electromagnetic fast scan mode is switched to the electromagnetic precise scan mode; and step S350: in the electromagnetic precise scan mode and after the third When the electromagnetic touch signal is not received after the period, the electromagnetic precise scanning mode is switched to the capacitive touch mode.
本發明的輸入裝置100在啟動後可以執行電容觸控模式或電磁掃描模式。在此一實施態樣中係以電容觸控模式作為開機時預設的觸控模式,對於本領域者是可以改變其運作的順序。The input device 100 of the present invention can perform a capacitive touch mode or an electromagnetic scan mode after activation. In this embodiment, the capacitive touch mode is used as the preset touch mode at the time of booting, and the order of operation of the field can be changed by those skilled in the art.
首先,微控制器141切換為電容觸控模式,微控制器141將選擇欲浮接的第一接腳122與第二接腳132。選擇接腳的方式可以是選擇兩相鄰接腳,也可以是選擇一定間隔的兩接腳。當微控制器141選出第一接腳122與第二接腳132後,微控制器141會根據所選的第一接腳122與第二接腳132將對應的第一天線串列111與第二天線串列112進行浮接的處理(請參考前文浮接的定義)。First, the microcontroller 141 switches to the capacitive touch mode, and the microcontroller 141 will select the first pin 122 and the second pin 132 to be floated. The way to select the pin can be to select two adjacent pins, or to select two pins with a certain interval. After the microcontroller 141 selects the first pin 122 and the second pin 132, the microcontroller 141 will connect the corresponding first antenna string 111 according to the selected first pin 122 and second pin 132. The second antenna string 112 performs floating processing (refer to the definition of the previous floating connection).
在電容觸控模式中且在經過第一期間後,微控制器141不管是否有接收到觸控輸入訊號都會從電容觸控模式切換為電磁快速掃描模式。微控制器141切換成電磁快速掃描模式,微控制器141會持續的執行電磁快速掃描模式至經過第二期間。若是在第二期間中,有數位筆移近輸入裝置100或碰觸輸入裝置100,則微控制器141會從電磁快速掃描模式切換為電磁精確掃描模式。In the capacitive touch mode and after the first period of time, the microcontroller 141 switches from the capacitive touch mode to the electromagnetic fast scan mode regardless of whether the touch input signal is received. The microcontroller 141 switches to the electromagnetic fast scan mode, and the microcontroller 141 continues to perform the electromagnetic fast scan mode until the second period has elapsed. If, during the second period, a digital pen moves closer to the input device 100 or touches the input device 100, the microcontroller 141 switches from the electromagnetic fast scan mode to the electromagnetic precision scan mode.
在運行電磁精確掃描模式下,若有電磁觸控訊號輸入的話則微控制器141會持續的進行接收的處理。當微控制器141沒有接收到電磁觸控訊號的輸入時,微控制器141會開始進行第三期間的計數。若在第三期間中有新的電磁觸控訊號輸入,則微控制器141將會重新計數第三期間。若是經過第三期間後,仍無電磁觸控訊號輸入則微控制器141會從電磁精確掃描模式切換為電容觸控模式。In the electromagnetic precise scanning mode, if there is an electromagnetic touch signal input, the microcontroller 141 will continue to receive the processing. When the microcontroller 141 does not receive an input of the electromagnetic touch signal, the microcontroller 141 will begin counting for the third period. If there is a new electromagnetic touch signal input during the third period, the microcontroller 141 will recount the third period. If there is no electromagnetic touch signal input after the third period, the microcontroller 141 will switch from the electromagnetic precise scanning mode to the capacitive touch mode.
本發明所提出的具有電容觸控感應與電磁感應的輸入裝置100與訊號偵測、切換方法可以透過同一組天線陣列110實現電磁觸控與電容觸控的輸入,因此本發明除了可以降低觸控板的體積,同時也實現兩種觸控輸入的即時切換。The input device 100 with capacitive touch sensing and electromagnetic induction and the signal detecting and switching method of the present invention can realize electromagnetic touch and capacitive touch input through the same set of antenna arrays 110, so the present invention can reduce touch. The volume of the board also enables instant switching of the two touch inputs.
雖然本發明以前述之較佳實施例揭露如上,然其並非用以限定本發明,任何熟習相像技藝者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,因此本發明之專利保護範圍須視本說明書所附之申請專利範圍所界定者為準。While the present invention has been described above in terms of the preferred embodiments thereof, it 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 patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.
100‧‧‧輸入裝置100‧‧‧ input device
110‧‧‧天線陣列110‧‧‧Antenna array
111‧‧‧第一天線串列111‧‧‧First antenna string
112‧‧‧第二天線串列112‧‧‧Second antenna series
120‧‧‧第一切換開關120‧‧‧First switch
122、α、β、γ、δ、ε、ζ、η、θ‧‧‧第一接腳122, α, β, γ, δ, ε, ζ, η, θ‧‧‧ first pin
130‧‧‧第二切換開關130‧‧‧Second switch
132、A、B、C、D、E、F、G與H‧‧‧第二接腳132, A, B, C, D, E, F, G and H‧‧‧ second pin
140‧‧‧處理模組140‧‧‧Processing module
141‧‧‧處理模組141‧‧‧Processing module
142、TX1、TX2、TX3、TX4、TX5、TX6、TX7、TX8‧‧‧傳輸接腳142, TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8‧‧‧ transmission pin
143、RX1、RX2、RX3、RX4、RX5、RX6、RX7、RX8‧‧‧接收接腳143, RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8‧‧‧ receiving pins
第1圖係為本發明之輸入裝置的架構示意圖。Figure 1 is a schematic diagram showing the architecture of an input device of the present invention.
第2A圖係為本發明的所選的第一接腳切換為浮接的示意圖。Figure 2A is a schematic illustration of the selected first pin of the present invention being switched to floating.
第2B圖係為本發明的所選的第二接腳切換為的浮接示意圖。Figure 2B is a schematic diagram of the floating of the selected second pin of the present invention.
第2C圖係為本發明對第一接腳的連接示意圖。Figure 2C is a schematic view of the connection of the first pin of the present invention.
第2D圖係為本發明對第二接腳的連接示意圖。The 2D figure is a schematic diagram of the connection of the second pin of the present invention.
第3圖係為本發明之運作流程示意圖。Figure 3 is a schematic diagram of the operational flow of the present invention.
第4圖係為本發明之狀態切換示意圖。Figure 4 is a schematic diagram of state switching of the present invention.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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TW201241722A (en) * | 2011-04-07 | 2012-10-16 | Taiguen Tech Shenzhen Co Ltd | Sensor, dual-mode touch module and dual-mode touch electronic device |
US20120274604A1 (en) * | 2009-11-27 | 2012-11-01 | Stuart Alexander Norton | Capacitive Touch Sensor, Display or Panel |
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2012
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TW201241722A (en) * | 2011-04-07 | 2012-10-16 | Taiguen Tech Shenzhen Co Ltd | Sensor, dual-mode touch module and dual-mode touch electronic device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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