TWI658381B - Stylus and control method thereof - Google Patents
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Abstract
一種觸控筆，可與一系統進行互動，並包括：一導體筆尖、一驅動電路、一偵測電路、一微控制器，以及一無線通訊模組。該驅動電路可供應一驅動電位至該導體筆尖。該偵測電路可由該導體筆尖處接收一反應電位。該微控制器可耦接至該驅動電路和該偵測電路，其中該微控制器可根據該驅動電位和該反應電位來決定關於該導體筆尖之一特性資訊。該無線通訊模組可將該特性資訊無線地傳送至該系統。 A stylus pen can interact with a system and includes: a conductive pen tip, a driving circuit, a detection circuit, a microcontroller, and a wireless communication module. The driving circuit can supply a driving potential to the conductor pen tip. The detection circuit can receive a reaction potential from the tip of the conductor. The microcontroller can be coupled to the driving circuit and the detection circuit, wherein the microcontroller can determine a characteristic information about the conductor pen tip according to the driving potential and the reaction potential. The wireless communication module can wirelessly transmit the characteristic information to the system.
Description
本發明係關於一種觸控筆(Stylus)，特別係關於一種觸控筆及其控制方法。 The present invention relates to a stylus, in particular to a stylus and a control method thereof.
隨著觸控筆技術之發展及各種可手寫裝置(例如：360度可翻轉筆記型電腦，或是二合一平板電腦)之推出，有越來越多使用者願意嘗試在裝置上搭配觸控筆進行使用。然而，在保護玻璃上使用觸控筆之手感，還是難以和傳統紙筆相比較。若頻繁更換觸控筆之筆尖，則對應之裝置可能無法即時作調整，將影響使用者之使用經驗。有鑑於此，必須提出一種全新之解決方案，以克服先前技術所面臨之問題。 With the development of stylus technology and the launch of various hand-writeable devices (such as 360-degree reversible notebook computers or 2-in-1 tablets), more and more users are willing to try to use touch with their devices. Pen for use. However, the feel of using a stylus on protective glass is still difficult to compare with traditional paper and pen. If the tip of the stylus is changed frequently, the corresponding device may not be adjusted in real time, which will affect the user's experience. In view of this, a new solution must be proposed to overcome the problems faced by the prior art.
在較佳實施例中，本發明提供一種觸控筆，與一系統進行互動，並包括：一導體筆尖；一驅動電路，供應一驅動電位至該導體筆尖；一偵測電路，由該導體筆尖處接收一反應電位；一微控制器，耦接至該驅動電路和該偵測電路，其中該微控制器係根據該驅動電位和該反應電位來決定關於該導體筆尖之一特性資訊；以及一無線通訊模組，將該特性資訊無線地傳送至該系統。 In a preferred embodiment, the present invention provides a stylus pen that interacts with a system and includes: a conductor pen tip; a driving circuit supplying a driving potential to the conductor pen tip; and a detection circuit by the conductor pen tip Receiving a reaction potential at a place; a microcontroller coupled to the driving circuit and the detection circuit, wherein the microcontroller determines a characteristic information about the tip of the conductor according to the driving potential and the reaction potential; and The wireless communication module wirelessly transmits the characteristic information to the system.
在一些實施例中，該微控制器判斷該反應電位是 否高於或等於該系統所定義之一臨界電位，若該反應電位高於或等於該臨界電位，則該特性資訊將指示該導體筆尖係操作於一正常模式，而若該反應電位低於該臨界電位，則該特性資訊將指示該導體筆尖係操作於一墨水筆模式。 In some embodiments, the microcontroller determines that the reaction potential is If it is higher than or equal to a critical potential defined by the system, if the reaction potential is higher than or equal to the critical potential, the characteristic information will indicate that the conductor pen tip is operating in a normal mode, and if the reaction potential is lower than the Critical potential, the characteristic information will indicate that the conductor pen tip is operated in an ink pen mode.
在一些實施例中，該微控制器判斷該反應電位是否高於或等於該系統所定義之一臨界電位，若該反應電位低於該臨界電位，則該微控制器將控制該驅動電路來提升該驅動電位，使得該反應電位變為高於或等於該臨界電位。 In some embodiments, the microcontroller determines whether the reaction potential is higher than or equal to a critical potential defined by the system. If the reaction potential is lower than the critical potential, the microcontroller will control the driving circuit to improve The driving potential causes the reaction potential to become higher than or equal to the critical potential.
在一些實施例中，該微控制器判斷該反應電位是否高於或等於該系統所定義之一臨界電位，若該反應電位低於該臨界電位，則該系統將根據該特性資訊來降低該臨界電位，使得該臨界電位變為低於或等於該反應電位。 In some embodiments, the microcontroller determines whether the reaction potential is higher than or equal to a critical potential defined by the system. If the reaction potential is lower than the critical potential, the system will reduce the threshold according to the characteristic information. Potential so that the critical potential becomes lower than or equal to the reaction potential.
在一些實施例中，該微控制器查詢一表格，該表格包括複數種筆尖材料、複數個既定反應電位，以及複數個既定驅動電位之間之關係，該驅動電路將該驅動電位設定為等於該等既定驅動電位之一者，若該微控制器判斷該反應電位等於該等既定反應電位之一者，則該特性資訊將記錄該等筆尖材料之對應一者，而若該微控制器判斷該反應電位不等於該等既定反應電位之任何一者，則該微控制器將控制該驅動電路來改變該驅動電位。 In some embodiments, the microcontroller queries a table including a plurality of nib materials, a plurality of predetermined reaction potentials, and a relationship between a plurality of predetermined driving potentials, and the driving circuit sets the driving potentials to be equal to the If one of the predetermined driving potentials is determined by the microcontroller, if the microcontroller judges that the reaction potential is equal to one of the predetermined reaction potentials, the characteristic information will record the corresponding one of the nib materials, and if the microcontroller judges the If the reaction potential is not equal to any of the predetermined reaction potentials, the microcontroller will control the driving circuit to change the driving potential.
在另一較佳實施例中，本發明提供一種觸控筆之控制方法，包括下列步驟：供應一驅動電位至一導體筆尖；由該導體筆尖處接收一反應電位；根據該驅動電位和該反應電位來決定關於該導體筆尖之一特性資訊；以及將該特性資訊無線 地傳送至一系統。 In another preferred embodiment, the present invention provides a method for controlling a stylus pen, including the following steps: supplying a driving potential to a conductor pen tip; receiving a reaction potential from the conductor pen tip; according to the driving potential and the reaction Potential to determine information about one of the characteristics of the conductor nib; and wirelessly transmitting the characteristic information Ground to a system.
在一些實施例中，該控制方法更包括：判斷該反應電位是否高於或等於該系統所定義之一臨界電位；若該反應電位高於或等於該臨界電位，則利用該特性資訊來指示該導體筆尖係操作於一正常模式；以及若該反應電位低於該臨界電位，則利用該特性資訊來指示該導體筆尖係操作於一墨水筆模式。 In some embodiments, the control method further includes: determining whether the reaction potential is higher than or equal to a critical potential defined by the system; if the reaction potential is higher than or equal to the critical potential, using the characteristic information to indicate the The conductive pen tip is operated in a normal mode; and if the reaction potential is lower than the critical potential, the characteristic information is used to indicate that the conductive pen tip is operated in an ink pen mode.
在一些實施例中，該控制方法更包括：判斷該反應電位是否高於或等於該系統所定義之一臨界電位；以及若該反應電位低於該臨界電位，則提升該驅動電位，使得該反應電位變為高於或等於該臨界電位。 In some embodiments, the control method further includes: determining whether the reaction potential is higher than or equal to a critical potential defined by the system; and if the reaction potential is lower than the critical potential, increasing the driving potential so that the reaction The potential becomes higher than or equal to the critical potential.
在一些實施例中，該控制方法更包括：判斷該反應電位是否高於或等於該系統所定義之一臨界電位；以及若該反應電位低於該臨界電位，則降低該臨界電位，使得該臨界電位變為低於或等於該反應電位。 In some embodiments, the control method further includes: determining whether the reaction potential is higher than or equal to a critical potential defined by the system; and if the reaction potential is lower than the critical potential, reducing the critical potential so that the critical The potential becomes lower than or equal to the reaction potential.
在一些實施例中，該控制方法更包括：查詢一表格，其中該表格包括複數種筆尖材料、複數個既定反應電位，以及複數個既定驅動電位之間之關係；將該驅動電位設定為等於該等既定驅動電位之一者；若該反應電位等於該等既定反應電位之一者，則利用該特性資訊來記錄該等筆尖材料之對應一者；以及若該反應電位不等於該等既定反應電位之任何一者，則改變該驅動電位。 In some embodiments, the control method further includes: querying a table, wherein the table includes a plurality of pen tip materials, a plurality of predetermined reaction potentials, and a relationship between a plurality of predetermined driving potentials; and setting the driving potential to be equal to the Wait for one of the predetermined driving potentials; if the reaction potential is equal to one of the predetermined reaction potentials, use the characteristic information to record the corresponding one of the nib materials; and if the reaction potential is not equal to the predetermined reaction potentials Either of these changes the driving potential.
100‧‧‧觸控筆 100‧‧‧ Stylus
110‧‧‧導體筆尖 110‧‧‧Conductor nib
120‧‧‧驅動電路 120‧‧‧Drive circuit
130‧‧‧偵測電路 130‧‧‧detection circuit
140‧‧‧微控制器 140‧‧‧Microcontroller
150‧‧‧無線通訊模組 150‧‧‧Wireless communication module
200‧‧‧系統 200‧‧‧ system
260‧‧‧觸控面板 260‧‧‧Touch Panel
270‧‧‧接收感測器 270‧‧‧Receiving sensor
380‧‧‧分壓電路 380‧‧‧Voltage Dividing Circuit
CP1‧‧‧第一連接點 CP1‧‧‧first connection point
CP2‧‧‧第二連接點 CP2‧‧‧Second connection point
R1‧‧‧電阻器 R1‧‧‧ resistor
R2‧‧‧可變電阻器 R2‧‧‧Variable resistor
VD‧‧‧驅動電位 VD‧‧‧Drive potential
VR‧‧‧反應電位 VR‧‧‧ Response Potential
VTH‧‧‧臨界電位 VTH‧‧‧Critical potential
VSS‧‧‧接地電位 VSS‧‧‧ ground potential
SA‧‧‧特性資訊 SA‧‧‧Characteristics
S410-S440、S510-S540、S610-S650、S710-S750、S810-S850‧‧‧步驟 S410-S440, S510-S540, S610-S650, S710-S750, S810-S850‧‧‧ steps
第1圖係顯示根據本發明一實施例所述之觸控筆之示意圖。 FIG. 1 is a schematic diagram showing a stylus pen according to an embodiment of the present invention.
第2圖係顯示根據本發明一實施例所述之系統之示意圖。 FIG. 2 is a schematic diagram showing a system according to an embodiment of the present invention.
第3圖係顯示根據本發明一實施例所述之分壓電路之示意圖。 FIG. 3 is a schematic diagram showing a voltage dividing circuit according to an embodiment of the present invention.
第4圖係顯示根據本發明一實施例所述之觸控筆之控制方法之流程圖。 FIG. 4 is a flowchart illustrating a method for controlling a stylus pen according to an embodiment of the present invention.
第5圖係顯示根據本發明一實施例所述之觸控筆之控制方法之流程圖。 FIG. 5 is a flowchart illustrating a method for controlling a stylus pen according to an embodiment of the present invention.
第6圖係顯示根據本發明一實施例所述之觸控筆之控制方法之流程圖。 FIG. 6 is a flowchart illustrating a method for controlling a stylus pen according to an embodiment of the present invention.
第7圖係顯示根據本發明一實施例所述之觸控筆之控制方法之流程圖。 FIG. 7 is a flowchart illustrating a method for controlling a stylus pen according to an embodiment of the present invention.
第8圖係顯示根據本發明一實施例所述之觸控筆之控制方法之流程圖。 FIG. 8 is a flowchart illustrating a method for controlling a stylus pen according to an embodiment of the present invention.
為讓本發明之目的、特徵和優點能更明顯易懂，下文特舉出本發明之具體實施例，並配合所附圖式，作詳細說明如下。 In order to make the objects, features, and advantages of the present invention more comprehensible, specific embodiments of the present invention are specifically listed below, and described in detail with the accompanying drawings.
在說明書及申請專利範圍當中使用了某些詞彙來指稱特定的元件。本領域技術人員應可理解，硬體製造商可能會用不同的名詞來稱呼同一個元件。本說明書及申請專利範圍並不以名稱的差異來作為區分元件的方式，而是以元件在功能上的差異來作為區分的準則。在通篇說明書及申請專利範圍當 中所提及的「包含」及「包括」一詞為開放式的用語，故應解釋成「包含但不僅限定於」。「大致」一詞則是指在可接受的誤差範圍內，本領域技術人員能夠在一定誤差範圍內解決所述技術問題，達到所述基本之技術效果。此外，「耦接」一詞在本說明書中包含任何直接及間接的電性連接手段。因此，若文中描述一第一裝置耦接至一第二裝置，則代表該第一裝置可直接電性連接至該第二裝置，或經由其它裝置或連接手段而間接地電性連接至該第二裝置。 Certain terms are used in the description and the scope of patent applications to refer to specific elements. Those skilled in the art will understand that hardware manufacturers may use different terms to refer to the same component. The scope of this specification and the patent application does not use the difference in names as a way to distinguish components, but rather uses the difference in functions of components as a criterion for distinguishing components. In the entire description and patent application scope The terms "including" and "including" are open-ended and should be interpreted as "including but not limited to." The term "approximately" means that within the acceptable error range, those skilled in the art can solve the technical problem within a certain error range and achieve the basic technical effect. In addition, the term "coupled" includes any direct and indirect electrical connection means in this specification. Therefore, if a first device is described as being coupled to a second device, it means that the first device can be electrically connected directly to the second device, or indirectly electrically connected to the first device via other devices or connection means.二 装置。 Two devices.
第1圖係顯示根據本發明一實施例所述之觸控筆(Stylus)100之示意圖。在第1圖之實施例中，觸控筆100包括：一導體筆尖(Conductive Pen Tip)110、一驅動電路(Driving Circuit)120、一偵測電路(Detection Circuit)130、一微控制器(Microcontroller Unit，MCU)140，以及一無線通訊模組(Wireless Communication Module)150。觸控筆100可與一系統200進行互動。例如，系統200可為一智慧型手機(Smart Phone)、一平板電腦(Tablet Computer)、一筆記型電腦(Notebook Computer)，或是具有觸控面板(Touch Control Panel)之任何裝置。觸控筆(Stylus)100可為一主動式(Active)觸控筆，並可傳送一信號至系統200。系統200亦可回傳另一信號給觸控筆100，使得兩者之間能進行互動。必須理解的是，雖然未顯示於第1圖中，觸控筆100更可包括其他元件，例如：一壓力感測器(Force Sensor)、一電池模組(Battery Module)、一切換器(Switch Element)，或(且)一直流對直流轉換器(DC-to-DC Converter)。 FIG. 1 is a schematic diagram showing a stylus 100 according to an embodiment of the present invention. In the embodiment of FIG. 1, the stylus pen 100 includes: a conductive pen tip 110, a driving circuit 120, a detection circuit 130, and a microcontroller (Microcontroller). Unit (MCU) 140, and a wireless communication module 150. The stylus pen 100 can interact with a system 200. For example, the system 200 may be a smart phone, a tablet computer, a notebook computer, or any device with a touch control panel. The stylus 100 can be an active stylus and can transmit a signal to the system 200. The system 200 can also return another signal to the stylus 100 so that the two can interact with each other. It must be understood that although not shown in FIG. 1, the stylus pen 100 may further include other components, such as: a pressure sensor, a battery module, and a switch. Element), or (and) a DC-to-DC Converter.
導體筆尖110為一可置換裝置，其形狀和種類在本 發明中並不特別限制。在一些實施例中，使用者可從複數個導體筆尖110中選擇一者來嵌入觸控筆100之前端當中，其中該等導體筆尖110可用不同材質製成，以發揮不同功效。例如，一導體筆尖110可為應用於觸控面板之一觸控筆尖，其可用一聚甲醛(Polyoxymethylene，POM)導體外殼包覆一不鏽鋼棒或一彈性橡膠棒而製成，而另一導體筆尖110可為應用於紙張之一墨水筆尖，其包括一墨水儲存槽和一滾珠，但亦不僅限於此。 The conductor nib 110 is a replaceable device, and its shape and type The invention is not particularly limited. In some embodiments, the user may select one of the plurality of conductor pen tips 110 to be embedded in the front end of the stylus pen 100, wherein the conductor pen tips 110 may be made of different materials to exert different effects. For example, a conductive pen tip 110 may be a touch pen tip applied to a touch panel. It may be made of a polyoxymethylene (POM) conductor shell covered with a stainless steel rod or an elastic rubber rod, and the other conductive pen point 110 may be an ink pen tip applied to paper, which includes an ink storage tank and a ball, but is not limited thereto.
驅動電路120和偵測電路130係耦接至導體筆尖110上之不同連接點。驅動電路120可供應一驅動電位(Driving Voltage)VD至導體筆尖110。偵測電路130再由導體筆尖110處接收一反應電位(Response Voltage)VR。反應電位VR可視為觸控筆100之一輸出電位，其可輸出至系統200。反應電位VR通常低於驅動電位VD。微控制器140可包括一儲存裝置，例如：一記憶體(Memory)。微控制器140係耦接至驅動電路120和偵測電路130，以接收資料並控制驅動電路120和偵測電路130，其中微控制器140係根據驅動電位VD和反應電位VR來決定關於導體筆尖110之一特性資訊(Characteristic Information)SA。舉例而言，前述之特性資訊SA可包括：導體筆尖110之電阻值、導體筆尖110之材質、導體筆尖110之種類、導體筆尖110之操作模式，或(且)要給系統200之控制命令，但亦不僅限於此。無線通訊模組150可為一藍牙模組(Bluetooth Module)。無線通訊模組150係耦接至微控制器140，並可將導體筆尖110之特性資訊SA無線地傳送至系統200。 The driving circuit 120 and the detecting circuit 130 are coupled to different connection points on the conductive pen tip 110. The driving circuit 120 can supply a driving voltage VD to the conductive pen tip 110. The detection circuit 130 receives a Response Voltage VR from the conductor pen tip 110. The response potential VR can be regarded as one of the output potentials of the stylus 100, which can be output to the system 200. The reaction potential VR is usually lower than the driving potential VD. The microcontroller 140 may include a storage device, such as a memory. The microcontroller 140 is coupled to the driving circuit 120 and the detection circuit 130 to receive data and control the driving circuit 120 and the detection circuit 130. The microcontroller 140 determines the conductor pen tip according to the driving potential VD and the response potential VR. One of 110 characteristic information (Characteristic Information) SA. For example, the aforementioned characteristic information SA may include: the resistance value of the conductor pen tip 110, the material of the conductor pen tip 110, the type of the conductor pen tip 110, the operation mode of the conductor pen tip 110, or (and) the control command to be given to the system 200, But it is not limited to this. The wireless communication module 150 may be a Bluetooth module. The wireless communication module 150 is coupled to the microcontroller 140 and can wirelessly transmit the characteristic information SA of the conductive pen tip 110 to the system 200.
第2圖係顯示根據本發明一實施例所述之系統200 之示意圖。在第2圖之實施例中，系統200包括一觸控面板260和一接收感測器(Receiving Sensor)270。當觸控筆100靠近或直接接觸到觸控面板260時，接收感測器270可由觸控筆100處接收反應電位VR。在一些實施例中，接收感測器270會將反應電位VR與一臨界電位VTH作比較，其中臨界電位VTH係由系統200之接收感測器270所定義。例如，若反應電位VR低於臨界電位VTH，系統200可能會將之視為雜訊(Noise)，或是據此進行一特殊操作。臨界電位VTH可為一固定值或一變動值。在一些實施例中，微控制器140係預先儲存系統200之臨界電位VTH。在另一些實施例中，系統200則傳送一通知信號至觸控筆100之無線通訊模組150，而此通知信號可包括臨界電位VTH。必須理解的是，雖然未顯示於第2圖中，系統200更可包括其他元件，例如：一電池模組、一揚聲器(Speaker)、一中央處理器(Central Processing Unit，CPU)，或(且)一外殼(Housing)。 FIG. 2 shows a system 200 according to an embodiment of the present invention. The schematic. In the embodiment of FIG. 2, the system 200 includes a touch panel 260 and a receiving sensor 270. When the stylus pen 100 approaches or directly contacts the touch panel 260, the receiving sensor 270 can receive the reaction potential VR at the stylus pen 100. In some embodiments, the receiving sensor 270 compares the response potential VR with a threshold potential VTH, where the threshold potential VTH is defined by the receiving sensor 270 of the system 200. For example, if the response potential VR is lower than the threshold potential VTH, the system 200 may regard it as noise or perform a special operation accordingly. The threshold potential VTH can be a fixed value or a variable value. In some embodiments, the microcontroller 140 stores the threshold potential VTH of the system 200 in advance. In other embodiments, the system 200 sends a notification signal to the wireless communication module 150 of the stylus 100, and the notification signal may include a threshold potential VTH. It must be understood that although not shown in Figure 2, the system 200 may further include other components, such as: a battery module, a speaker, a central processing unit (CPU), or (and ) A housing.
第3圖係顯示根據本發明一實施例所述之分壓電路(Voltage Divider Circuit)380之示意圖。在第3圖之實施例中，分壓電路380係內建於觸控筆100當中。詳細而言，導體筆尖110具有彼此位置相異之一第一連接點(Connection Point)CP1和一第二連接點CP2，其中驅動電路120係耦接至第一連接點CP1，而偵測電路130係耦接至第二連接點CP2，使得第一連接點CP1可用於接收驅動電位VD，而第二連接點CP2可用於輸出反應電位VR。分壓電路380包括一電阻器(Resistor)R1，其係耦接於第二連接點CP2和一接地電位VSS(例如：0V)之間。因為導體筆尖110可被置換，故導體筆尖110自身之電阻特性則可模擬為一
可變電阻器(Variable Resistor)R2，其係耦接於第一連接點CP1和第二連接點CP2之間。根據分壓定理，驅動電位VD和反應電位VR兩者之間之關係可如下列方程式(1)所述：
在此設計下，若驅動電位VD、反應電位VR，以及電阻器R1之參數均為已知，則微控制器150將可據此計算出可變電阻器R2之電阻值。亦即，微控制器150可根據方程式(1)來取得導體筆尖110之電阻特性，其可作為特性資訊SA之一部份。藉由分析導體筆尖110之電阻特性，微控制器150可得知導體筆尖110之種類，並將之記錄於特性資訊SA當中。必須注意的是，本發明並不僅限於此。在其他實施例中，微控制器150亦可用不同方式來使用驅動電位VD和反應電位VR，以推估出關於導體筆尖110之特性資訊SA。 Under this design, if the driving potential VD, the response potential VR, and the parameters of the resistor R1 are all known, the microcontroller 150 can calculate the resistance value of the variable resistor R2 accordingly. That is, the microcontroller 150 can obtain the resistance characteristic of the conductor pen tip 110 according to equation (1), which can be used as a part of the characteristic information SA. By analyzing the resistance characteristic of the conductor pen tip 110, the microcontroller 150 can know the type of the conductor pen tip 110 and record it in the characteristic information SA. It must be noted that the present invention is not limited to this. In other embodiments, the microcontroller 150 may also use the driving potential VD and the response potential VR in different ways to estimate the characteristic information SA about the conductor pen tip 110.
以下實施例將介紹關於觸控筆100之一些控制方法之流程圖。請一併參考第1、2、3圖之裝置以理解其操作步驟。必須理解的是，這些控制方法之流程圖僅為舉例，而非用於限制本發明之範圍。 The following embodiment will introduce a flowchart of some control methods of the stylus pen 100. Please refer to the devices in Figures 1, 2, and 3 together to understand the operation steps. It must be understood that the flowcharts of these control methods are merely examples and are not intended to limit the scope of the present invention.
第4圖係顯示根據本發明一實施例所述之觸控筆100之控制方法之流程圖。首先，在步驟S410，一驅動電路120供應一驅動電位VD至一導體筆尖110。在步驟S420，一偵測電路130由導體筆尖110處接收一反應電位VR。在步驟S430，一 微控制器140根據驅動電位VD和反應電位VR來決定關於導體筆尖110之一特性資訊SA。最後，在步驟S440，一無線通訊模組150將特性資訊SA無線地傳送至一系統200。 FIG. 4 is a flowchart illustrating a method for controlling the stylus pen 100 according to an embodiment of the present invention. First, in step S410, a driving circuit 120 supplies a driving potential VD to a conductor pen tip 110. In step S420, a detection circuit 130 receives a response potential VR from the conductor pen tip 110. In step S430, a The microcontroller 140 determines characteristic information SA about one of the conductor pen tips 110 according to the driving potential VD and the response potential VR. Finally, in step S440, a wireless communication module 150 wirelessly transmits the characteristic information SA to a system 200.
第5圖係顯示根據本發明一實施例所述之觸控筆100之控制方法之流程圖。第5圖係用於說明第4圖之步驟430之細部特徵。在步驟S510，微控制器140可比較反應電位VR與系統200所定義之一臨界電位VTH。在步驟S520，微控制器140可判斷反應電位VR是否高於或等於臨界電位VTH。若反應電位VR高於或等於臨界電位VTH，在步驟S530，則特性資訊SA將指示導體筆尖110係操作於一正常模式。反之，若反應電位VR低於臨界電位VTH，在步驟S540，則特性資訊SA將指示導體筆尖110係操作於一墨水筆模式。系統200之操作可根據特性資訊SA來進行調整及最佳化。前述之正常模式可指觸控筆100為主動式操作，其可搭配一觸控面板而使用；而前述之墨水筆模式可指觸控筆100為被動式操作，其可搭配一紙張而使用。一般而言，被動式之導體筆尖110將較主動式之導體筆尖110具有更低之電阻值，故其更換動作可藉由微控制器140分析反應電位VR而得知。在墨水筆模式下，微控制器140更可控制驅動電路120，使得驅動電路120停止產生驅動電位VD，以降低觸控筆100之總功率消耗。另外，在墨水筆模式下，系統200更可禁能(Disable)接收感測器270，以降低系統200之總功率消耗。 FIG. 5 is a flowchart illustrating a method for controlling the stylus pen 100 according to an embodiment of the present invention. Figure 5 is used to explain the detailed features of step 430 of Figure 4. In step S510, the microcontroller 140 may compare the reaction potential VR with a threshold potential VTH defined by the system 200. In step S520, the microcontroller 140 may determine whether the reaction potential VR is higher than or equal to the threshold potential VTH. If the response potential VR is higher than or equal to the threshold potential VTH, in step S530, the characteristic information SA will instruct the conductor pen tip 110 to operate in a normal mode. Conversely, if the reaction potential VR is lower than the threshold potential VTH, in step S540, the characteristic information SA will instruct the conductor pen tip 110 to operate in an ink pen mode. The operation of the system 200 can be adjusted and optimized based on the characteristic information SA. The aforementioned normal mode may refer to the stylus 100 as an active operation, which may be used with a touch panel; and the aforementioned ink pen mode may refer to the stylus 100 as a passive operation, which may be used with a paper. Generally speaking, the passive conductive nib 110 will have a lower resistance value than the active conductive nib 110, so the replacement action can be known by the microcontroller 140 analyzing the reaction potential VR. In the ink pen mode, the microcontroller 140 can further control the driving circuit 120 so that the driving circuit 120 stops generating the driving potential VD to reduce the total power consumption of the stylus 100. In addition, in the ink pen mode, the system 200 can further disable the receiving sensor 270 to reduce the total power consumption of the system 200.
第6圖係顯示根據本發明一實施例所述之觸控筆100之控制方法之流程圖。第6圖係用於說明第4圖之步驟430之細部特徵。在步驟S610，微控制器140可比較反應電位VR與系 統200所定義之一臨界電位VTH。在步驟S620，微控制器140可判斷反應電位VR是否高於或等於臨界電位VTH。若反應電位VR高於或等於臨界電位VTH，在步驟S630，則特性資訊SA將指示導體筆尖110係操作於一正常模式。反之，若反應電位VR低於臨界電位VTH，在步驟S640，則微控制器140將控制驅動電路120來提升驅動電位VD。因此，在步驟S650，反應電位VR將變為高於或等於臨界電位VTH。在第6圖之實施例中，所有可選擇之導體筆尖110皆為主動式。若觸控筆100將導體筆尖110置換為另一者，則反應電位VR有時會低於臨界電位VTH，使得反應電位VR可能被系統200視為雜訊而忽略。因應此一問題，驅動電路120可持續提升其驅動電位VD，直至反應電位VR高於或等於臨界電位VTH為止。 FIG. 6 is a flowchart illustrating a method for controlling the stylus pen 100 according to an embodiment of the present invention. FIG. 6 is a diagram for explaining the detailed features of step 430 in FIG. 4. In step S610, the microcontroller 140 may compare the reaction potential VR with the system. A threshold potential VTH defined by the system 200. In step S620, the microcontroller 140 may determine whether the reaction potential VR is higher than or equal to the threshold potential VTH. If the response potential VR is higher than or equal to the threshold potential VTH, in step S630, the characteristic information SA will instruct the conductor pen tip 110 to operate in a normal mode. Conversely, if the reaction potential VR is lower than the threshold potential VTH, in step S640, the microcontroller 140 controls the driving circuit 120 to raise the driving potential VD. Therefore, in step S650, the reaction potential VR will become higher than or equal to the threshold potential VTH. In the embodiment of FIG. 6, all of the selectable conductor pen tips 110 are active. If the stylus pen 100 replaces the conductive pen tip 110 with another one, the response potential VR is sometimes lower than the threshold potential VTH, so that the response potential VR may be ignored by the system 200 as noise. In response to this problem, the driving circuit 120 can continuously increase its driving potential VD until the reaction potential VR is higher than or equal to the threshold potential VTH.
第7圖係顯示根據本發明一實施例所述之觸控筆100之控制方法之流程圖。第7圖係用於說明第4圖之步驟430之細部特徵。在步驟S710，微控制器140可比較反應電位VR與系統200所定義之一臨界電位VTH。在步驟S720，微控制器140可判斷反應電位VR是否高於或等於臨界電位VTH。若反應電位VR高於或等於臨界電位VTH，在步驟S730，則特性資訊SA將指示導體筆尖110係操作於一正常模式。反之，若反應電位VR低於臨界電位VTH，在步驟S740，則特性資訊SA將被通知給系統200，使得系統200根據特性資訊SA來降低臨界電位VTH。因此，在步驟S750，臨界電位VTH將變為低於或等於反應電位VR。在第7圖之實施例中，所有可選擇之導體筆尖110皆為主動式。若觸控筆100將導體筆尖110置換為另一者，則反應電位VR有 時會低於臨界電位VTH，使得反應電位VR可能被系統200視為雜訊而忽略。因應此一問題，系統200可持續降低其臨界電位VTH，直至臨界電位VTH低於或等於反應電位VR為止。 FIG. 7 is a flowchart illustrating a method for controlling the stylus pen 100 according to an embodiment of the present invention. FIG. 7 is a diagram for explaining the detailed features of step 430 in FIG. 4. In step S710, the microcontroller 140 may compare the reaction potential VR with a threshold potential VTH defined by the system 200. In step S720, the microcontroller 140 may determine whether the reaction potential VR is higher than or equal to the threshold potential VTH. If the response potential VR is higher than or equal to the threshold potential VTH, in step S730, the characteristic information SA will instruct the conductor pen tip 110 to operate in a normal mode. Conversely, if the reaction potential VR is lower than the threshold potential VTH, in step S740, the characteristic information SA is notified to the system 200, so that the system 200 reduces the threshold potential VTH according to the characteristic information SA. Therefore, in step S750, the threshold potential VTH will become lower than or equal to the reaction potential VR. In the embodiment of FIG. 7, all of the selectable conductor pen tips 110 are active. If the stylus pen 100 replaces the conductor pen tip 110 with another, the reaction potential VR has Will be lower than the threshold potential VTH, so that the response potential VR may be ignored by the system 200 as noise. In response to this problem, the system 200 can continuously reduce its threshold potential VTH until the threshold potential VTH is lower than or equal to the reaction potential VR.
第8圖係顯示根據本發明一實施例所述之觸控筆100之控制方法之流程圖。第8圖係用於說明第4圖之步驟430之細部特徵。微控制器140(及其儲存裝置)可預先儲存有一表格(Table)，其中此表格包括複數種筆尖材料、複數個既定反應電位，以及複數個既定驅動電位之間之關係。舉例而言，前述之表格可如下列表一所述：
在表一中，同一橫列之筆尖材料、既定驅動電位，以及既定反應電位三者之間係彼此互相對應，可視為一候選組合。必須注意的是，前述之第一材料、第二材料，以第三材料可彼此相異，前述之既定驅動電位VDM1、VDM2、VDM3可彼此相異，而前述之既定反應電位VRM1、VRM2、VRM3可彼此相異。請一併參考第8圖和表一以理解之。在步驟S810，微控制器140查詢所儲存之表格(例如：表一)。在步驟S820，驅動電路120將驅動電位VD設定為等於該等既定驅動電位VDM1、VDM2、VDM3之一者，例如：既定驅動電位VDM1。在步驟S830， 微控制器140判斷反應電位VR是否等於該等既定反應電位VRM1、VRM2、VRM3之任何一者。若微控制器140判斷反應電位VR等於該等既定反應電位VRM1、VRM2、VRM3之一者，例如：既定反應電位VRM1，在步驟S840，則特性資訊SA將記錄該等筆尖材料之對應一者，例如：第一材料。若微控制器140判斷反應電位VR不等於該等既定反應電位VRM1、VRM2、VRM3之任何一者，在步驟S850，則微控制器140將控制驅動電路120來改變驅動電位VD。例如，驅動電路120可改將驅動電位VD設定為等於另一既定驅動電位VDM2。此時，流程將回到步驟S830。若微控制器140判斷反應電位VR等於該等既定反應電位VRM1、VRM2、VRM3之一者，例如：既定反應電位VRM2，在步驟S840，則特性資訊SA將記錄該等筆尖材料之對應一者，例如：第二材料。若微控制器140判斷反應電位VR不等於該等既定反應電位VRM1、VRM2、VRM3之任何一者，在步驟S850，則微控制器140將控制驅動電路120來改變驅動電位VD。例如，驅動電路120可改將驅動電位VD設定為等於另一既定驅動電位VDM3。其餘流程可依此類推不再贅述。 In Table 1, the nib material, the predetermined driving potential, and the predetermined reaction potential of the same row correspond to each other and can be regarded as a candidate combination. It must be noted that the aforementioned first material, the second material, and the third material may be different from each other, the aforementioned predetermined driving potentials VDM1, VDM2, and VDM3 may be different from each other, and the aforementioned predetermined reaction potentials VRM1, VRM2, VRM3 Can be different from each other. Please refer to Figure 8 and Table 1 together for understanding. In step S810, the microcontroller 140 queries the stored form (eg, Table 1). In step S820, the driving circuit 120 sets the driving potential VD to be equal to one of the predetermined driving potentials VDM1, VDM2, and VDM3, for example, the predetermined driving potential VDM1. In step S830, The microcontroller 140 determines whether the response potential VR is equal to any one of the predetermined response potentials VRM1, VRM2, and VRM3. If the microcontroller 140 determines that the response potential VR is equal to one of the predetermined response potentials VRM1, VRM2, and VRM3, for example: the predetermined response potential VRM1, in step S840, the characteristic information SA will record the corresponding one of the nib materials, Example: First material. If the microcontroller 140 determines that the response potential VR is not equal to any of the predetermined response potentials VRM1, VRM2, and VRM3, in step S850, the microcontroller 140 will control the driving circuit 120 to change the driving potential VD. For example, the driving circuit 120 may instead set the driving potential VD to be equal to another predetermined driving potential VDM2. At this time, the flow will return to step S830. If the microcontroller 140 determines that the response potential VR is equal to one of the predetermined response potentials VRM1, VRM2, and VRM3, for example, the predetermined response potential VRM2, in step S840, the characteristic information SA will record the corresponding one of the nib materials, Example: Second material. If the microcontroller 140 determines that the response potential VR is not equal to any of the predetermined response potentials VRM1, VRM2, and VRM3, in step S850, the microcontroller 140 will control the driving circuit 120 to change the driving potential VD. For example, the driving circuit 120 may instead set the driving potential VD to be equal to another predetermined driving potential VDM3. The rest of the process can be deduced by analogy.
在第8圖之實施例中，係將所有筆尖材料、反應電位VR，以及驅動電位VD之可能組合預先儲存於表格。若最初所選擇之驅動電位VD已可正確對應至導體筆尖110之材料，則微控制器140應可在表格中找到正確之反應電位VR；否則，微控制器140可再持續地改變驅動電位VD，直到能在表格中找到正確之反應電位VR為止。在此設計下，僅需要有限次數之試驗，即能使得微控制器140根據表格來將正確之筆尖材料記綠 於特性資訊SA當中。 In the embodiment of FIG. 8, all possible combinations of the nib material, the reaction potential VR, and the driving potential VD are stored in a table in advance. If the initially selected driving potential VD can correctly correspond to the material of the conductor pen tip 110, the microcontroller 140 should find the correct reaction potential VR in the table; otherwise, the microcontroller 140 can continue to change the driving potential VD Until the correct response potential VR can be found in the table. Under this design, only a limited number of tests are required, that is, the microcontroller 140 can make the correct nib material green according to the table. In the feature information SA.
必須注意的是，第4-8圖之控制方法無須依次序執行，且第1-3圖之實施例之任一裝置特徵均可套用至第4-8圖之控制方法當中。 It must be noted that the control method of Figs. 4-8 need not be executed sequentially, and any of the device features of the embodiment of Figs. 1-3 can be applied to the control method of Figs. 4-8.
本發明提出一種新穎之觸控筆和控制方法。在本發明之設計下，即使觸控筆之原本之導體筆尖被換成另一個新的，此觸控筆仍可自動偵測新的導體筆尖，同時決定其特性資訊。根據此特性資訊，觸控筆或(且)其對應之系統之操作可進行適當之調整。因此，本發明有助於最佳化觸控筆之使用功效，進而可改善使用者之經驗。 The invention provides a novel stylus and a control method. Under the design of the present invention, even if the original conductive nib of the stylus pen is replaced with another new one, the stylus pen can still automatically detect the new conductive nib and determine its characteristic information. According to this characteristic information, the operation of the stylus or (and) its corresponding system can be appropriately adjusted. Therefore, the present invention helps to optimize the use effect of the stylus pen, thereby improving the user experience.
值得注意的是，以上所述之元件參數皆非為本發明之限制條件。設計者可以根據不同需要調整這些設定值。本發明之觸控筆和控制方法並不僅限於第1-8圖所圖示之狀態。本發明可以僅包括第1-8圖之任何一或複數個實施例之任何一或複數項特徵。換言之，並非所有圖示之特徵均須同時實施於本發明之觸控筆和控制方法當中。 It is worth noting that the above-mentioned component parameters are not the limiting conditions of the present invention. The designer can adjust these settings according to different needs. The stylus and the control method of the present invention are not limited to the states shown in FIGS. 1-8. The invention may include only any one or more features of any one or more of the embodiments of Figures 1-8. In other words, not all the illustrated features must be implemented in the stylus and control method of the present invention at the same time.
在本說明書以及申請專利範圍中的序數，例如「第一」、「第二」、「第三」等等，彼此之間並沒有順序上的先後關係，其僅用於標示區分兩個具有相同名字之不同元件。 The ordinal numbers in this specification and the scope of patent application, such as "first", "second", "third", etc., do not have a sequential relationship with each other, they are only used to indicate that two have the same Different components of the name.
本發明雖以較佳實施例揭露如上，然其並非用以限定本發明的範圍，任何熟習此項技藝者，在不脫離本發明之精神和範圍內，當可做些許的更動與潤飾，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。 Although the present invention is disclosed as above with a preferred embodiment, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications and decorations without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201308136A (en) * | 2011-06-22 | 2013-02-16 | Apple Inc | Active stylus |
| TWM523150U (en) * | 2015-11-27 | 2016-06-01 | Emright Technology Co Ltd | Capacitive touch pen and capacitive touch pen operating system |
| TW201638733A (en) * | 2015-01-19 | 2016-11-01 | Wacom Co Ltd | Pointing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201308136A (en) * | 2011-06-22 | 2013-02-16 | Apple Inc | Active stylus |
| TW201638733A (en) * | 2015-01-19 | 2016-11-01 | Wacom Co Ltd | Pointing device |
| TWM523150U (en) * | 2015-11-27 | 2016-06-01 | Emright Technology Co Ltd | Capacitive touch pen and capacitive touch pen operating system |
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