200817984 九、發明說明： 【發明所屬之技術領域】 本發明係關於—種以振幅控制拖料能之電磁感應 筆。 【先前技術】 傳統之電磁感應筆，其通常於電磁感應筆内使用一 可規劃之LC振料路，當筆尖受啦錢力時，其可 規劃之LC振i電路產生不同頻率之信號，數位板根據 此頻率之變化，而產生不同粗細之線條。 第-圖為-方塊示意圖，說明傳統之電磁感應筆之 可規劃之LC振i電路根據筆尖送來之壓力，產生頻率 變化之電磁波。但是因為可規劃之LC振盈電路的電容 電感製造上有公差，頻率不是完全準破，所以電磁感應 筆出水的臨界解不能設計成太靠近邊緣解，以免造 成不當出水之誤動作。 此傳統電磁感應筆之設計造成筆尖必須施加一定程 度之力虿，才能達到書寫之目的，但如此一來，當使用 者需要輕寫而非.圖等需一定程度壓力的狀態下，筆尖 必須於垂直方向施-程度之壓力會使書寫過程不順暢。 有鑑於此，本發明人乃藉著本身在電腦領域多年之 200817984 豐富實務經驗，斜斟μ、七 & / β 、十對上述之电磁感應筆之問題，提出一 能受小壓力即可書寫之電磁感應筆，讓使用者輕寫即可 出水，改善書寫之觸感與方便。 【發明内容】 /本發明克服了前述傳統之電磁感應«要垂直施加 ^又之力里才能在數位板上書寫問題的缺點。本發 月$種以振幅控制拖良功能之電磁感應筆，其僅需極 曰、筆尖位私，換言之，僅需極小的施力即可觸發數 位板，增進書寫之觸感。 為達成上述目的，本發明之電磁感應筆包含一直流 (DC)電麵（其輸出_高電壓錢韻、以及—低電壓 直肌^唬）、一筆尖開關(Pen tip switch)、以及一可規劃 之LC振i電路，此比缝電路並輸出一電磁波信號。 此筆A開關藉由筆錢力以獅接收錢電壓源之 问或低I壓直流信號，即此電磁感應筆輸出電磁波信號 之振幅變化包含特定信息，—控制此電磁感應筆出水 14否。此電磁感應筆輸出之電磁波包含振幅以及頻率信 5虎’其中振幅信號只有高與低兩種振幅。高振幅信號之 兒磁波代表筆尖壓力達到出水臨界值，並可於數位板上 書寫、繪圖；低振幅信號之電磁波代表筆尖壓力未達出 品界值’無法書寫。而當筆尖壓力達到出水臨界後， 6 200817984 筆尖繼續施力則會改變輪出電磁波之頻率，則數位板上 依照電磁波頻率之變化以顯示不同粗細之筆跡。 茲配合下列圖示、實施例之詳細說明及申請專利範 圍，將上述及本發明之其他目的與優點詳述於後。 【實施方式】 第二圖為本發明之以振幅控制拖料能之電磁感應 筆之電路示意圖。參考第二圖，本發明電磁感應筆之電 路200包含-直流電壓源2〇1，其輸出_高電壓直流信 唬201a以及-低電壓直流信號2〇lb、一筆尖開關、 以及-可規劃之LC振逢電路2〇5。其中筆尖開關2〇3接 收-筆尖壓力’該筆尖壓力2〇9係控制筆尖開關2〇3 以決定接收直流電壓源2()1之高電壓直流信號細或低 電壓直流信號201b。 本發明電磁感應筆之筆尖開關期係可為顧式開 關、彈I式開關、導電_式開關、或細式開關。 筆尖開關203在接收直流電屡源2〇1輸出之信號 後’並將其信號傳送至可_之Lc紐電㈣5。可規 劃之LC振盪電路2〇5接收筆尖開關2〇3與筆尖壓力· 之k號輸人後’輸出—包含振巾冑無率變化之電磁波信 號 207。 7 200817984 本發明電磁感應筆之電路200輪出之電磁波信號207 中’其包含之振幅信號係由筆尖開㈣3接收直流電壓 源二01之直流信號來實現，而此電路·輸出之電磁波 '、僅包έ问、低兩種振幅之信號，此亦即對應電 磁感應筆出水之開與關。 、’不上所述，當’本發明之電磁感應筆的筆尖在一接收 a置(如數位⑹上方餘時，在其錢高度内，但是並無 接觸於接收裝置，筆尖屬力209未達到一出水臨界， 則筆尖開關203切換至低電壓直流信號島，並將此信 賴送可規劃之LC缝電路2〇5，即此電磁感應筆輸^ 一低振幅之電磁波信號2〇7。而當電磁感應筆之筆尖輕 觸於該接收裝置時，筆尖壓力2G9達到出水臨界行程 後，筆尖開關203接收高電壓直流信號201a，並將此信 號傳送可規劃之LC振i電路泌，則電磁感應筆輸出一 高振幅之電磁波信號207至接收裝置。 當電磁感應筆之筆尖壓力2〇9達到出水臨界後，筆 尖壓力209繼續加大，則會影響可規劃之Lc振盪電路 205，並輪出一高振幅、不同頻率之電磁波信號2〇7並輸 出至接收裝置。而接收裝置更可將接收到之電磁波作 號規劃為不同之壓力階(如5丨2階），亦當電磁感應筆^⑻ 之筆尖壓力209越大，則送出高振幅、低頻率之電磁波， 200817984 對應之壓力階越高。 弟二圖為-卫作範例，說明如第二圖之電磁感應筆 輸=之電磁波的波形變化圖。參考第三圖，當此電磁感 應筆在數位板上方盤旋而未接觸於數位板時，筆尖壓 力2〇9未達到可書寫之出水臨界3〇9，筆尖開關2〇3接 收一低電壓直流域2Glb，則電磁感應筆輸出之電磁波 信號為-低振幅之電磁波信號，如3G1所示。筆尖壓力 2〇9出水私界3〇9值之設計為避免電磁感應筆之漏水的 現象產生(即避免電麵絲無施力之狀況下，數位板誤 判而出水之誤動作）。 §電磁感應筆之筆尖輕觸於數位板，而筆尖壓力209 達到出水臨界309值後，筆尖開Μ 2〇3切換至-高電壓 直制言號2Gla，則電磁感應筆輸出之電磁波信號為 -南振幅之電磁波信號，如3G3所示，亦即使用者可在 數位板上輕寫即可出水。如果使用者繼續施加壓力於筆 尖時達到-定之行程3〇3a後，輸出高振幅、不同頻率變 化之電磁波305、309至數位板，如此在數位板上即可顯 示不同粗細之線條與變化。 綜上所述，當電磁感應筆之筆尖壓力2〇9達到出水 臨界309，電磁波信號由低振幅改變為高振幅，該電磁 感應筆即可在數位板上書寫、晝圖。而隨著筆尖屬力2〇9 9 200817984 之％力改义’而輪出電磁波之頻率信號也跟著變化，其 更可在數位板上化為對應順序之壓力階。 第四圖為第―圖之電磁感應筆電路輸出電磁波之頻 率夂化對應之壓力階的一工作範例。此一範例中將此電 兹感應筆輸出之電磁波之頻率變化所對應之壓力階設為 512 丨中錢磁感應筆之出水臨界期值對應於壓 f 力階值為5〇。當壓力階齡於5G〜⑽表示電磁感應筆 可用以胃寫’其顯示之線條無粗細之分。當壓力階值超 過議，表示此電磁感應筆可用於無，其顯示之線條 • 有粗細之分。 筆大壓力209未達到出水臨界3〇9值，則筆尖開關 203切換至-低電壓直流信號雇並輸出一低振幅之電 磁波信號301至數位板，其對應之壓力階值則介於〇_5〇， 1、 醜位板判定無書寫之動作’而避免漏7JC之誤動作。 當筆尖輕觸於數位板時，其筆尖壓力2〇9達到出水 界309值後，筆尖開關203切換至一高電壓直流信號 2〇la後，並輸出一高振幅之電磁波信號3〇3至數位板， 其對應之壓力階值則介於50〜100，此電磁感應筆2〇〇即 可於數位板上書寫。當筆尖壓力209達到出水臨界3〇9 值後並繼續施壓，其輸出電磁波207之頻率變化對應之 壓力卩白值介於100〜511 ’即輸出電磁波2Q7之頻率越低， 10 200817984 對應壓力階值越高，數位板上顯示之痕跡越寬。200817984 IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to an electromagnetic induction pen that controls the dragging energy by amplitude. [Prior Art] A conventional electromagnetic induction pen generally uses a programmable LC vibration path in an electromagnetic induction pen. When the pen tip is subjected to a rally, the programmable LC oscillation circuit generates signals of different frequencies, and the digital position The board produces lines of different thicknesses based on this frequency change. The first figure is a block diagram showing the programmable electromagnetic vibration of the conventional electromagnetic induction pen. The electromagnetic wave generated by the pen tip generates a frequency-changing electromagnetic wave. However, because the capacitive inductance of the programmable LC oscillation circuit is manufactured with tolerances and the frequency is not completely broken, the critical solution of the electromagnetic induction pen's water output cannot be designed too close to the edge solution to avoid malfunction of improper water discharge. The design of the traditional electromagnetic induction pen causes the nib to exert a certain degree of force to achieve the purpose of writing, but in this case, when the user needs to write lightly instead of a certain degree of pressure, the nib must be Vertical pressure-degree pressure can make the writing process less smooth. In view of this, the inventor of the present invention has been able to write with a small pressure by using the rich practical experience of 200817984, which has been in the field of computer for many years, the problem of oblique electromagnetic, seven & / β, ten pairs of electromagnetic induction pens mentioned above. The electromagnetic induction pen allows the user to write water to effluent, improving the touch and convenience of writing. SUMMARY OF THE INVENTION / The present invention overcomes the above-mentioned drawbacks of the conventional electromagnetic induction «to apply vertically on the tablet. This month, the electromagnetic induction pen with the amplitude control function is only required to be extremely sturdy and pen tip private. In other words, the digital board can be triggered with only a small force to enhance the touch of writing. In order to achieve the above object, the electromagnetic induction pen of the present invention comprises a DC (electrical) surface (its output_high voltage chimney, and - low voltage rectus muscle), a pen tip switch, and a The planned LC oscillator circuit, which outputs an electromagnetic wave signal. The A switch uses the money to receive the money source or the low I voltage DC signal, that is, the amplitude change of the electromagnetic wave output electromagnetic signal of the electromagnetic induction pen contains specific information, and controls the electromagnetic induction pen to discharge water 14 . The electromagnetic wave output by the electromagnetic induction pen contains amplitude and frequency signals. The amplitude signal has only two amplitudes, high and low. The magnetic wave of the high amplitude signal represents the tip pressure reaching the critical value of the water discharge, and can be written and plotted on the tablet; the electromagnetic wave of the low amplitude signal represents that the pen tip pressure does not reach the value of the article' cannot be written. When the pen tip pressure reaches the criticality of the water discharge, 6 200817984, the pen tip continues to apply force to change the frequency of the electromagnetic wave, and the tablet displays the handwriting of different thickness according to the change of the electromagnetic wave frequency. The above and other objects and advantages of the present invention will be described in detail with reference to the accompanying drawings. [Embodiment] The second figure is a circuit diagram of an electromagnetic induction pen with an amplitude control drag energy according to the present invention. Referring to the second figure, the circuit 200 of the electromagnetic induction pen of the present invention comprises a DC voltage source 2〇1, an output_high voltage DC signal 201a and a low voltage DC signal 2〇lb, a tip switch, and a programmable LC oscillation circuit 2〇5. The nib switch 2〇3 receives the nib pressure. The nib pressure 2〇9 controls the nib switch 2〇3 to determine the high voltage DC signal of the DC voltage source 2()1 or the low voltage DC signal 201b. The pen tip switch period of the electromagnetic induction pen of the present invention can be a Gu type switch, a bomb type I switch, a conductive type switch, or a fine switch. The pen tip switch 203 transmits the signal to the Lc neon (4) 5 after receiving the signal output from the DC power source 2〇1. The programmable LC oscillating circuit 2 〇 5 receives the pen tip switch 2 〇 3 and the pen tip pressure · the k number after the input 'output — the electromagnetic wave signal 207 including the change of the vibrating volume. 7 200817984 In the electromagnetic wave signal 207 of the circuit 200 of the electromagnetic induction pen of the present invention, the amplitude signal contained therein is realized by the pen tip opening (4) 3 receiving the DC signal of the DC voltage source 2 01, and the electromagnetic wave of the circuit · output is only The package asks for the low amplitude signal, which corresponds to the opening and closing of the electromagnetic induction pen. 'Not as mentioned, when the tip of the electromagnetic induction pen of the present invention is within the receiving height of a receiving position (such as the digit (6), but not in contact with the receiving device, the nib 209 does not reach When the water is critical, the nib switch 203 is switched to the low voltage DC signal island, and the trust is sent to the programmable LC slot circuit 2〇5, that is, the electromagnetic induction pen transmits a low amplitude electromagnetic wave signal 2〇7. When the nib of the electromagnetic induction pen touches the receiving device, after the nib pressure 2G9 reaches the critical stroke of the water discharge, the nib switch 203 receives the high voltage DC signal 201a, and transmits the signal to the programmable LC vibrating circuit, and the electromagnetic induction pen A high-amplitude electromagnetic wave signal 207 is outputted to the receiving device. When the pen tip pressure 2〇9 of the electromagnetic induction pen reaches the water outlet threshold, the nib pressure 209 continues to increase, which affects the programmable Lc oscillation circuit 205 and turns out a high The amplitude and frequency of the electromagnetic wave signal 2〇7 are output to the receiving device, and the receiving device can further plan the received electromagnetic wave to be a different pressure step (such as 5丨2 order), and also be an electromagnetic sense. The larger the tip pressure 209 of the pen ^(8) is, the higher the amplitude and the lower frequency of the electromagnetic wave are sent, and the corresponding pressure step is higher in 200817984. The second picture is the example of the guard, which shows the electromagnetic wave of the electromagnetic induction pen input as shown in the second figure. The waveform change diagram. Referring to the third figure, when the electromagnetic induction pen is hovered over the tablet without contacting the tablet, the tip pressure 2〇9 does not reach the writeable water criticality 3〇9, and the nib switch 2〇3 receives A low voltage DC domain 2Glb, the electromagnetic wave signal output by the electromagnetic induction pen is - low amplitude electromagnetic wave signal, as shown by 3G1. The tip pressure 2〇9 water outlet 3〇9 value is designed to avoid leakage of the electromagnetic induction pen The phenomenon occurs (ie, the digital board is misjudged and the water is malfunctioned under the condition that the electric wire is not applied.) § The tip of the electromagnetic induction pen touches the tablet, and the nib pressure 209 reaches the critical value of the water output 309, and the nib is opened. 2〇3 switches to the high-voltage straight-through word 2Gla, the electromagnetic wave signal output by the electromagnetic induction pen is the electromagnetic wave signal of the south amplitude, as shown by 3G3, that is, the user can write on the tablet to effluent If the user continues to apply pressure to the tip of the pen to reach a predetermined stroke of 3〇3a, the electromagnetic waves 305 and 309 with high amplitude and different frequency are output to the tablet, so that the lines and variations of different thicknesses can be displayed on the tablet. As described above, when the tip pressure 2〇9 of the electromagnetic induction pen reaches the water outlet threshold 309, and the electromagnetic wave signal changes from a low amplitude to a high amplitude, the electromagnetic induction pen can be written and mapped on the tablet. 2〇9 9 200817984% force modified 'and the frequency signal of the electromagnetic wave is also changed, which can be converted into the corresponding order of pressure on the tablet. The fourth picture is the electromagnetic induction pen circuit output of the first figure A working example of the pressure level corresponding to the frequency of the electromagnetic wave. In this example, the pressure step corresponding to the frequency change of the electromagnetic wave outputted by the inductive pen is set to 512. The water outlet critical value of the magnetic sensor pen corresponds to the pressure f force step value of 5 〇. When the pressure level is from 5G to (10), it means that the electromagnetic induction pen can be used to write the stomach. The line of its display has no thickness. When the pressure level is exceeded, it means that the electromagnetic sensor pen can be used for none, and the line of its display • has the thickness. If the pen pressure 209 does not reach the critical value of the water output 3〇9, the pen tip switch 203 switches to the low-voltage DC signal to hire and output a low-amplitude electromagnetic wave signal 301 to the tablet, and the corresponding pressure step is between 〇_5. 〇, 1, the ugly board determines that there is no writing action 'and avoids the 7JC malfunction. When the nib touches the tablet, the tip pressure 2〇9 reaches the water outlet 309 value, and the nib switch 203 switches to a high voltage DC signal 2〇la, and outputs a high amplitude electromagnetic wave signal 3〇3 to the digit. The corresponding pressure level of the board is between 50 and 100, and the electromagnetic induction pen can be written on the tablet. When the pen tip pressure 209 reaches the critical value of the water outlet 3〇9 and continues to apply pressure, the frequency of the output electromagnetic wave 207 corresponds to a pressure white value between 100 and 511 'that is, the lower the frequency of the output electromagnetic wave 2Q7, 10 200817984 corresponding pressure step The higher the value, the wider the trace displayed on the tablet.
不失—般性，筆尖開關之出水臨界值之設定，其可 針4不同電磁感應筆之設計而調整，主要為讓使用者之 書寫方便與舒適，即僅需極小量之筆尖位移即可達到出 尺匕。界值並觸發書寫。而連接於筆尖開關之可規劃之LC 振盈電路，其主要魏用以翻筆尖壓力，以送出不同 頻率變化之電磁波。 准’以上所述者，僅為發明之最佳實施例而已，當不 能依此限定本發明實施之範圍。即大凡一本發明申請專 利範圍所作之均等變化與修飾，皆應仍屬本發明專利涵 蓋之範圍内。 200817984 【圖式簡單說明】 第—圖為一示立闰 下思圖，說明一種值 頻率變化之電磁波。 、、奴電磁感應筆，受力產生 第二圖為一干立固 不思圖，說明本發明 一 之電磁感應筆電路。 振幅控制拖曳功能 波形=圖Γ作範例’說明本發明電磁感應筆之電磁波的 第四圖為本翻之—個功 輪出雷磁沾4 t 兄明本發明電磁感應筆 包磁波之頻率變化對應之壓力階。 、 L要元件符號說明】 ------- 2〇1直流電壓源 201a 201b低電壓直流信號 203 205可規劃之LC振盪電路 207 209筆尖壓力 301低振幅之電磁波信號 303 305南振幅、高頻率之電磁波 307 ί 309出水臨界 2{)la高電壓直流信 號 30:3馬振幅之電磁波信. _幅、低頻率之電磁波Without losing the generality, the setting of the water outlet threshold of the nib switch can be adjusted by the design of the different electromagnetic induction pens of the needle 4, mainly for the convenience and comfort of the user, that is, only a very small amount of nib displacement can be achieved. Out of the box. The boundary value triggers writing. The programmable LC oscillation circuit connected to the nib switch is mainly used to turn the tip pressure to send electromagnetic waves with different frequency changes. The above is only the preferred embodiment of the invention, and the scope of the invention is not limited thereto. That is, the equivalent changes and modifications made by a patent application scope should remain within the scope of the invention. 200817984 [Simple description of the diagram] The first figure is a diagram showing the electromagnetic wave with a change in value. , slave electromagnetic induction pen, force generated The second picture is a dry and solid diagram, illustrating the electromagnetic induction pen circuit of the present invention. Amplitude Control Drag Function Waveform=图Γ作例' illustrates the fourth diagram of the electromagnetic wave of the electromagnetic induction pen of the present invention. The frequency of the magnetic wave of the electromagnetic induction pen package of the invention is corresponding to the 4 t The pressure level. , L element symbol description] ------- 2〇1 DC voltage source 201a 201b low voltage DC signal 203 205 programmable LC oscillator circuit 207 209 nib pressure 301 low amplitude electromagnetic wave signal 303 305 south amplitude, high Frequency electromagnetic wave 307 ί 309 water output critical 2{)la high voltage DC signal 30: 3 horse amplitude electromagnetic wave letter. _ amplitude, low frequency electromagnetic wave
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