TWM421545U - Electromagnetic induction type input device - Google Patents

Electromagnetic induction type input device Download PDF

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Publication number
TWM421545U
TWM421545U TW100216643U TW100216643U TWM421545U TW M421545 U TWM421545 U TW M421545U TW 100216643 U TW100216643 U TW 100216643U TW 100216643 U TW100216643 U TW 100216643U TW M421545 U TWM421545 U TW M421545U
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Taiwan
Prior art keywords
control unit
transparent substrate
straight conductor
long straight
conductor layer
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TW100216643U
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Chinese (zh)
Inventor
wen-xiong Yu
Wen-Yuan Huang
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Uc Logic Technology Corp
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Priority to TW100216643U priority Critical patent/TWM421545U/en
Publication of TWM421545U publication Critical patent/TWM421545U/en

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M421545 五、新型說明: 【新型所屬之技術領域】 本新型是有關於一種電磁感應式輸入設備,特別是指— 種適用於非迴圈式天線的電磁感應式輸入設備。 【先前技術】 已知一種數位板(Digitizer)輸入設備包括一如圖i的作 為磁場發射的主動式專用筆(Activepen)8&一如圖2的作為 磁場接收之數位板9。M421545 V. New description: [New technical field] The present invention relates to an electromagnetic induction type input device, in particular to an electromagnetic induction type input device suitable for a non-loop type antenna. [Prior Art] A Digitizer input device is known which includes an active pen 8 & as shown in Fig. 2 as a magnetic field, and a tablet 9 as a magnetic field as shown in Fig. 2.

參閱圖1,專用筆8具有一電源81、一振盪電路82、 一鐵粉芯83及一線圈84,鐵粉芯83及線圈84主要作為可 產生磁場的電感元件,由於專用筆8内有電源81提供能量 來源,所以會持續地供應電能到振盪電路82而發射特定頻 率的電磁波。 參閱圖2,其中,數位板9之感測線圈χι〜χ25係同向 平仃配置’各感測線圈Χ1〜Χ25之―端予以連接至接地及 另-端連接至個別的開關元件,該等_元件組成—選擇電 路9卜且該選擇電路91受控制單元9〇控制控制單元% 經由對各開關元件之循序控制來獲得令每—感測線圈 乂卜乂:^感應訊號^補充說明的是’圖^例示數位板 9作為X-座標檢測的數個感測線圈χι〜χ25,未示出γ_座標 檢測的數個感測線圈斑X-庙辨、, J π囤一 A座標檢測的數個感測線圈 X1〜X25呈正交方向排列。 參閱圖1及圖2,發射雷磁错+ μ 货耵电磁%之專用筆8電磁場的間距 S1與各感測線圈XI〜Χ25的間距 J』此b2相配合,使得專用筆8 3 M421545 的間距s卜哈與感測線圈X1〜X25的間距S2的位置相符時, 該位置所接收到的訊號會最強,數位板9的控制單元9〇循 序掃描感測線圈XI〜X25中的相鄰訊號進行比較後,就可依 據分析感測線圈XI〜X25所接收到的幾組訊號中的強弱判 斷出專用筆8位於數位板9的那一條感測線圈的範圍内,進 而計算出其位置座標。 已知如圖2的感測線圈Χ1〜Χ25就目前的製程是採用金 或銅的金屬導線,單一金屬導線的電阻值約為丨歐姆以下, 其電阻值較低而易於傳導感測訊號,但是採用金或銅的金屬 鲁 導線只適用於不透光的數位板。 然而,以目前常用的電容式觸控螢幕為例,其為透光 式,目前多採用半導體式銦錫氧化物(ΙΤ〇)製程,半導體式 銦錫氧化物之電阻值相當高,一條線路可能會超過1〇〇反歐 姆,若希望應用於數位板,單一感測線圈經過此半導體式銦 錫氧化物的較高電阻分壓後,輸入電壓也需提高才能得到較 大的感測訊號,但是就消費性商品的電壓通常無法太高,需 要一套解決方案。 φ 【新型内容】 因此,本新型之目的,即在提供一種適用於具有透明基 板及長直導體的電磁感應式輸入設備。 於疋,本新型電磁感應式輸入設備包含一發訊裝置及— 接收裝置。 該發訊裝置具有一訊號發射器,該訊號發射器具有繞制 成線圈的螺紅導線及線圈缠繞的鐵磁性物質,且線圈形成有 4 M421545 磁場。 該接收裝置具有一透明基板、複數條非迴圈式的長直導 體層及一控制裝置。該等非迴圈式的長直導體層為透明且分 別間隔並排設置於該透明基板上的兩正交方向,但各不互相 連接導通’該等長直導體層具有降低阻抗值的預定寬度;該 控制.裝置電性連接並檢測該等長直導體,當該發訊裝置的磁 場接近該透明基板上的該等長直導體的任一位置時,該控制 裝置利用檢測得到的感應訊號判斷該發訊裝置位於該透明 基板的位置。 本新型的接收裝置的一實施例中,該接收裝置的控制裝 置具有一控制單元、一選擇電路及一訊號處理電路;該控制 單元主控協調各元件運作;該選擇電路電性連接該控制單元 及該等長直導體層的一端,受該控制單元控制將相鄰數個長 直導體層選擇接地;該訊號處理電路連接該控制單元及該等 長直導體層的另一端,將該等相鄰數個長直導體的感應訊號 渡波後傳遞予該控制單元以供判斷該發訊裝置位於該透明 基板的位置。 本新型的接收裝置的另—實施例中,該接收裝置的該等 長直導體層的—端均接地,該控制裝置具有—控制單元、一 選擇電路& Λ號處理電路;該控制單元主控協調各元件運 作;該選擇電路電性連接該控制單元及該等長直導體層的另 -端,文讀制單元控制將該等長直導體層中的相鄰數個的 感應訊號選擇輸出;該訊號處理轉連接該控制單元及接收 該選擇電路的選擇輸出,將該等長直導體中的相鄰數個的感 5 M421545 應訊號濾波後傳遞予該控制單元以供該控制單元判斷該發 訊裝置位於該透明基板的位置。 本新型的發訊裝置的一實施例中,該發訊裝置包括一筆 身及一裝設於該筆身以一末端碰觸該透明基板的筆尖,該訊 號發射器具有呈十字型的鐵磁性物質,且螺旋導線分別繞制 在十字型的鐵磁性物質的四臂部上,於該發訊裝置接近該透 明基板時,該控制裝置利用檢測得到的感應訊號的波峰判斷 S玄發訊裝置位於該透明基板的位置。 本新型的發訊裝置的另一實施例t,該發訊裝置包括一 筆身及一裝設於該筆身以一末端碰觸該透明基板的筆尖,該 讯號發射裝設於該筆尖的另一端且距離該筆尖末端一預 定问度,该預定尚度之設計係於該發訊裝置接近該透明基板 時,該控制裝置利用檢測得到的一類似波谷形的感應訊號, 以該類似波谷形的兩波峰間的谷底判斷該發訊裝置位於該 透明基板的位置。 本新型電磁感應式輸入設備之功效在於:接收裝置具有 非迴圈式的長直導體層,分別間隔並排設置於該透明基板上 的兩正父方向,該等長直導體層具有降低阻抗值的預定寬 度,可降低輸入電壓並可得到較大的感測訊號,加上配合發 訊裝置的特殊設計,讓電_應式輸人設備得以有更廣泛的 應用層面。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效,在以 下配合參考圖式之四個較佳實施例的詳細說明中,將可清楚 6 的呈現" 在本新型被詳細描述之前,要注意的是,在以下的說明 内谷中’類似的元件是以相同的編號來表示。 參閱圖3,本新型電磁感應式輸入設備100的較佳實施 例適用於組配於一透明基板2卜該電磁感應式輸入設備100 包含一發訊裝置1及一接收裝置2。 發訊裝置1具有一筆身1〇,和裝設於筆身1〇内的一電 源11、一振盪電路12、一調整機構13、一開關14、一訊號 發射器15及一以一末端ι61碰觸透明基板21的筆尖16, 其中的電源11供應各元件的用電,振盪電路12具有可調電 感及/或可變電容’當開關14被使用者按壓後,調整機構 U受開關14連動而依據振盪電路12的設計,讓可調電感 改變其電感值或是改變可變電容的電容值,令振盪電路12 的頻率改變’進而傳遞給接收裝置2通知其變化而做出相應 的處理’訊號發射器15具有繞制成線圈的螺旋導線及線圈 纏繞的鐵磁性物質’且線圏形成有磁場(容後再述)。 接收裝置2具有設置於透明基板21的複數條非迴圈式 的長直導體層211、212及一控制裝置23。該等非迴圈式的 長直導體層211、212是在透明基板21上的兩正交方向分別 間隔並排設置但各不互相連接導通,包括垂直方向的長直導 體層211及水平方向的長直導體層212’長直導體層、 212是光學鍍膜的透明導體如銦錫氧化物,可利用蒸鍍法、 濺鍍法、電鍍法、化學氣相沈積法或濕式塗佈法形成於透明 基板21上,導體材料可為印刷電路、銀漿印刷電路或銅導 M421545 線材質’透明基板21材料可為玻璃纖維板、玻璃板、塑料 板等。 特別的是,該等長直導體層211、212具有降低阻抗值 的預定寬度W,及W2,本實施例中的預定寬度Wl及W2約 為1公分;這是因為IT〇的材質特性,透明度越高其阻抗 越高’然而’依據歐姆定律,導體的寬度與阻抗成反比,因 此依據預定宽度)\^及w2越高則阻抗越低的原理設計,可 大幅降低接收裝置2所需的輸入及訊號發射器15電壓,符 合消費性電子產品的需求。 控制裝置23電性連接並檢測該等長直導體211、212, 具有一選擇電路231、一訊號處理電路232及一控制單元 24,控制單元24並具有一處理器241及一類比數位轉換器 242’當發訊裝置!的磁場接近透明基板21上的該等長直導 體211、212的任一位置時’控制裝置23控制選擇電路23j 依序將取得的訊號經過訊號處理電路232的濾波放大等訊 號處理及類比數位轉換器242數位化後,處理器241就可依 據數位化資料判斷出發訊裝置1位於透明基板21的位置。 訊號處理電路232可包括例如:放大電路,放大增益可 受程式控制在不同工作區内因應阻抗或效益不同致收到的 電磁場能量不一致時’依各天線導體校正時記錄的信號列表 儲存補償值以調整放大電路的放大倍數,使各天線導體接收 能量能驅於一致;此外,訊號處理電路232可包括頻率帶通 電路以接收發訊裝置丨的特定頻段形成的磁場以增加鑑別 度,頻率帶通電路也可設計為可調式以避開干擾。 8 M421545 本新型主要利用兩種原理:一是電磁鐵的原理:螺旋導 線繞制成線圈且線圈纏繞於鐵磁性物質,使線圈外側匯聚多 條磁力線;二是磁場感應產生電流的原理:電流通過長直導 線’導線周圍會產生磁場’反之亦然,磁場靠近長直導線附 近會使長直導線產生感應電壓/電流。 以下配合圖4及圖5介紹如圖3的接收裝置2的兩種實 施例。Referring to FIG. 1, the special pen 8 has a power source 81, an oscillating circuit 82, an iron powder core 83 and a coil 84. The iron powder core 83 and the coil 84 are mainly used as an inductance element capable of generating a magnetic field. The 81 provides a source of energy so that electrical energy is continuously supplied to the oscillating circuit 82 to emit electromagnetic waves of a specific frequency. Referring to FIG. 2, the sensing coils of the tablet 9 are connected to the flat configuration, and the ends of the sensing coils Χ1 to Χ25 are connected to the ground and the other ends are connected to the individual switching elements. Component composition - selection circuit 9 and the selection circuit 91 is controlled by the control unit 9 控制 control unit % via the sequential control of each switching element to obtain a per-sensing coil 乂: ^ induction signal ^ supplementary description is ' FIG. 2 illustrates the digital sensing board 9 as a plurality of sensing coils χι to χ25 detected by the X-coordinate, and does not show the number of sensing coil spots detected by the γ_coordinate X-temple, and the number of J π囤-A coordinates detected. The sensing coils X1 to X25 are arranged in the orthogonal direction. Referring to FIG. 1 and FIG. 2, the spacing S1 of the electromagnetic field of the special pen 8 for transmitting the lightning magnetic error + μ, the magnetic field of the electromagnetic field is matched with the distance J of each of the sensing coils XI to Χ25, and this b2 is matched to make the spacing of the special pen 8 3 M421545 When the position of the spacing S2 of the sensing coils X1 to X25 coincides, the signal received at the position will be the strongest, and the control unit 9 of the tablet 9 sequentially scans the adjacent signals in the sensing coils XI to X25. After the comparison, it is determined that the special pen 8 is located within the range of the sensing coil of the tablet 9 according to the strengths of the groups of signals received by the sensing coils XI to X25, and then the position coordinates are calculated. It is known that the sensing coils Χ1 to Χ25 of FIG. 2 are currently made of metal wires of gold or copper. The resistance of a single metal wire is less than 丨 ohm, and the resistance value is low, and the sensing signal is easy to conduct, but Metallic wires with gold or copper are only suitable for opaque tablets. However, taking the conventional capacitive touch screen as an example, it is a light transmissive type, and currently a semiconductor indium tin oxide (ITO) process is used, and the resistance value of the semiconductor indium tin oxide is relatively high, and one line may be Will exceed 1 〇〇 anti-ohmic, if you want to apply to the tablet, after a single sensing coil is divided by the higher resistance of the semiconductor indium tin oxide, the input voltage needs to be increased to get a larger sensing signal, but The voltage on consumer goods is usually not too high and requires a solution. φ [New content] Therefore, the object of the present invention is to provide an electromagnetic induction type input device suitable for a transparent substrate and a long straight conductor. Yu Wei, the novel electromagnetic induction type input device comprises a transmitting device and a receiving device. The transmitting device has a signal transmitter having a spiral red wire wound around the coil and a ferromagnetic material wound around the coil, and the coil is formed with a magnetic field of 4 M421545. The receiving device has a transparent substrate, a plurality of non-return type long straight conductor layers and a control device. The non-circular long straight conductor layers are transparent and are respectively arranged in two orthogonal directions arranged side by side on the transparent substrate, but are not connected to each other. The equal length straight conductor layers have a predetermined width which reduces the impedance value; The control device electrically connects and detects the isometric straight conductor. When the magnetic field of the transmitting device approaches any position of the isometric straight conductor on the transparent substrate, the control device determines the detected signal by using the detected sensing signal. The signaling device is located at the position of the transparent substrate. In an embodiment of the receiving device of the present invention, the control device of the receiving device has a control unit, a selection circuit and a signal processing circuit; the control unit controls and coordinates the operation of each component; the selection circuit is electrically connected to the control unit And one end of the long straight conductor layer is controlled by the control unit to select a plurality of adjacent long straight conductor layers to be grounded; the signal processing circuit is connected to the control unit and the other end of the long straight conductor layer, and the phase is The inductive signal of the adjacent long straight conductors is transmitted to the control unit for determining that the transmitting device is located at the transparent substrate. In another embodiment of the receiving device of the present invention, the ends of the equal length straight conductor layers of the receiving device are grounded, and the control device has a control unit, a selection circuit & an apostrophe processing circuit; Controlling and coordinating operation of each component; the selection circuit is electrically connected to the control unit and the other end of the long straight conductor layer, and the text reading unit controls the selection of the adjacent plurality of sensing signals in the long straight conductor layers The signal processing is connected to the control unit and receives the selection output of the selection circuit, and the adjacent plurality of sensed 5 M421545 signals are filtered and transmitted to the control unit for the control unit to determine The signaling device is located at the position of the transparent substrate. In an embodiment of the transmitting device of the present invention, the transmitting device includes a body and a pen tip mounted on the end of the pen body to touch the transparent substrate, the signal transmitter having a cruciform ferromagnetic substance And the spiral wires are respectively wound on the four arms of the cruciform ferromagnetic material, and when the transmitting device approaches the transparent substrate, the control device determines, by using the detected peak of the sensing signal, that the S-sentence device is located at the The position of the transparent substrate. In another embodiment of the present invention, the transmitting device includes a body and a pen tip mounted on the pen body to touch the transparent substrate at one end, and the signal is emitted from the pen tip. One end and a predetermined degree of distance from the end of the nib, the predetermined degree of design is when the transmitting device approaches the transparent substrate, the control device uses the detected trough-like sensing signal to be similar to the trough shape The valley between the two peaks determines the position of the transmitting device on the transparent substrate. The electromagnetic induction type input device has the following effects: the receiving device has a non-return type long straight conductor layer, which are respectively arranged side by side in two positive parent directions on the transparent substrate, and the equal length straight conductor layer has a reduced impedance value. The predetermined width reduces the input voltage and allows for a larger sensing signal. In addition, with the special design of the signaling device, the electric input device can be used in a wider range of applications. [Embodiment] The foregoing and other technical contents, features and effects of the present invention will be described in detail in the following detailed description of the four preferred embodiments with reference to the drawings. Previously, it should be noted that in the following description, similar elements are denoted by the same reference numerals. Referring to FIG. 3, a preferred embodiment of the electromagnetic induction input device 100 of the present invention is suitable for assembly on a transparent substrate. The electromagnetic induction input device 100 includes a signaling device 1 and a receiving device 2. The signaling device 1 has a body 1 , and a power source 11 mounted in the pen body 1 , an oscillating circuit 12 , an adjusting mechanism 13 , a switch 14 , a signal transmitter 15 , and a terminal ι 61 Touching the pen tip 16 of the transparent substrate 21, wherein the power source 11 supplies power for each component, and the oscillating circuit 12 has an adjustable inductance and/or a variable capacitance. When the switch 14 is pressed by the user, the adjustment mechanism U is interlocked by the switch 14. According to the design of the oscillating circuit 12, the tunable inductor changes its inductance value or changes the capacitance value of the variable capacitor, so that the frequency of the oscillating circuit 12 changes 'and is transmitted to the receiving device 2 to notify the change thereof to perform corresponding processing'. The emitter 15 has a ferromagnetic substance wound around a spiral wire and a coil which is formed into a coil, and a magnetic field is formed in the coil (described later). The receiving device 2 has a plurality of non-circular type long straight conductor layers 211, 212 and a control device 23 disposed on the transparent substrate 21. The non-circular type long straight conductor layers 211 and 212 are arranged side by side in two orthogonal directions on the transparent substrate 21, but are not connected to each other, and include a long straight conductor layer 211 in the vertical direction and a horizontal length. Straight conductor layer 212' long straight conductor layer, 212 is an optically coated transparent conductor such as indium tin oxide, which can be formed transparent by vapor deposition, sputtering, electroplating, chemical vapor deposition or wet coating. On the substrate 21, the conductor material may be a printed circuit, a silver paste printed circuit or a copper conductor M421545. The material of the transparent substrate 21 may be a fiberglass board, a glass plate, a plastic plate or the like. In particular, the equal lengths of the straight conductor layers 211, 212 have a predetermined width W of decreasing the impedance value, and W2, and the predetermined widths W1 and W2 in the present embodiment are about 1 cm; this is because of the material properties of the IT ,, transparency. The higher the impedance is, the higher the impedance is. However, according to Ohm's law, the width of the conductor is inversely proportional to the impedance. Therefore, the higher the impedance according to the predetermined width) and the lower the impedance, the lower the impedance, and the input required for the receiving device 2 can be greatly reduced. And the signal transmitter 15 voltage, in line with the needs of consumer electronics. The control device 23 electrically connects and detects the long straight conductors 211 and 212, and has a selection circuit 231, a signal processing circuit 232 and a control unit 24. The control unit 24 has a processor 241 and an analog digital converter 242. 'When the device is sent! When the magnetic field is close to any position of the long straight conductors 211, 212 on the transparent substrate 21, the control device 23 controls the selection circuit 23j to sequentially perform the signal processing and analog digital conversion of the signal obtained by the signal processing circuit 232. After the device 242 is digitized, the processor 241 can determine the position of the remote device 1 on the transparent substrate 21 based on the digitized data. The signal processing circuit 232 can include, for example, an amplifying circuit, and the amplification gain can be controlled by the program to store the compensation value according to the signal list recorded when each antenna conductor is corrected according to the electromagnetic field energy received when the impedance or the benefit is different in different working areas. Adjusting the amplification factor of the amplifying circuit so that the receiving energy of each antenna conductor can be driven to be consistent; in addition, the signal processing circuit 232 can include a frequency band pass circuit to receive a magnetic field formed by a specific frequency band of the transmitting device to increase the discrimination, and the frequency bandpass The circuit can also be designed to be adjustable to avoid interference. 8 M421545 This model mainly uses two principles: First, the principle of electromagnet: spiral wire is wound into coil and coil is wound on ferromagnetic material, so that multiple magnetic lines are concentrated on the outside of coil; second is the principle of magnetic field induced current: current passing A long straight wire will generate a magnetic field around the wire and vice versa. A magnetic field near the long straight wire will induce an induced voltage/current to the long straight wire. Two embodiments of the receiving device 2 of Fig. 3 will be described with reference to Figs. 4 and 5.

參閱圖4,本新型的一實施例中,接收裝置2,的控制單 元24主控協調各元件運作;選擇電路23丨電性連接控制單 元24及該等長直導體層211、212的一端,選擇電路23ι 包括一連接長直導體層211的X多工器31及一連接長直導 體層212的Y多工器32,X多工器31、γ多工器32受控 制單元24控制,分別將相鄰數個長直導體層2ιι、2ΐ2選擇 接地;訊號處理電路232連接控制單元24及該等長直導體 層2Η、212的另一端,將該等相鄰數個長直導體2丨卜Μ]Referring to FIG. 4, in an embodiment of the present invention, the control unit 24 of the receiving device 2 controls and coordinates the operation of each component; the selection circuit 23 electrically connects the control unit 24 and one end of the long straight conductor layers 211, 212, The selection circuit 23i includes an X multiplexer 31 connecting the long straight conductor layer 211 and a Y multiplexer 32 connecting the long straight conductor layer 212. The X multiplexer 31 and the γ multiplexer 32 are controlled by the control unit 24, respectively. The adjacent plurality of long straight conductor layers 2 ιι, 2 ΐ 2 are selected to be grounded; the signal processing circuit 232 is connected to the control unit 24 and the other ends of the equal length straight conductor layers 2 Η, 212, and the adjacent plurality of long straight conductors 2 are 丨Μ]

的感應訊號濾波後傳遞予該控制單元24以供判斷如圖3的 發訊裝置1位於透明基板21的位置。 參閱圖5’本新型的另—實施例中’接收裝置2”的該等 長直導體層2U、212的一端均接地,接收裂置2”的控制單 元24主控協調各元件運作;選擇電路231電性連接控制單 元24及該等長直導體層2U、212的另—端,選擇電路如 包括-連接長直導體層211的乂解多工器41及一連接長直 導體層2i2的Y解多工器42,χ解多工器41及γ解多工 器42受控制單元24控制將該等長直導體層2ιι、⑴中的 9 M421545 相鄰數個的感應訊號選擇輸出;.訊號處理電路232連接控制 單元24及接收選擇電路231的選擇輸出,將該等長直導體 211、212中的相鄰數個的感應訊號濾波後傳遞予控制單元 24以供該控制單元24判斷如圖3的發訊裝置!位於透明基 板21的位置。 以下介紹如圖3的發訊裝置1的兩種實施例。 參閱圖3及圖6,發訊裝置丨的一實施例中,訊號發射 器15’是具有呈十字型的鐵磁性物質及螺旋導線,該鐵磁性 物質可以是磁性陶瓷及金屬粉末燒解而成,且螺旋導線分別 繞制在十字型的鐵磁性物質的四臂部上,十字型的優點在 於:即使一方向是平行於導體而無磁力線切割感應但另一 方向因為疋與導體正交所以會有感應,也就是至少有一方向 可感應’無論在何方向皆可取得感應訊號。因此,發訊裝置 15’接近透明基板21時,如圖3的控制裝置23利用檢測得 到的感應訊號的波峰判斷該發訊裝置1的位置。 詳細而δ ’金屬線繞置於四延伸臂上,纏繞方式分別為 形成一第一電感51及一第二電感52’當振盪電路a作用 時’第一電感51及第二電感52分別間隔接續產生磁力線, 與透明基板21上的該等長直導體層211、212產生交互作 用,使得最接近訊號發射器15,的長直導體層211、212接 收到最強的信號’然後依據強弱比偵知目前訊號發射器15, 於長直導體層211 '212的所在位置。 參閱圖7,並配合圖6,訊號發射器15’不斷產生一定 頻率的發送訊號,長直導體標號分別為XI〜Χ5及γι〜Υ5, 10 M421545 假設訊號發射器15,的中央150靠近導體標號(X3,Y3)時,未 經訊號處理的偵測訊號可知靠近導體標號(χ3,γ3)的訊號最 強’經由類比數位轉換後’其數位訊號可獲知X軸掃描週 期中最強的感應訊號為Vx及γ軸掃描週期中最強的感應訊 號為Vy,因此,比較相鄰訊號(如:三組相鄰訊號)判斷最 強者就可換算出發訊裝置丨位於透明基板21的位置為 (X3,Y3),其他實施例中,相鄰訊號最多可取至七組作比較 以得到更精確的定位。 配合圖3及圖8,發訊裝置1的另一實施例中,不同於 圖6的是,本實施例的訊號發射器ι5”是裝設於筆尖a的 上端162且距離筆尖16的末端161有一預定高度 n度Η之没計’係與一般利用檢測得到的波峰訊號取最高 峰值當作定位依據有所不同,本實施例是利用訊號發射器 15”遠離導體至預定高度η得到的一類似波谷形的感應訊號 當作定位依據,主要是以該類似波谷形的兩波峰間的谷底判 斷該發訊裝置1位於透明基板21的位置,此預定高度Η可 經由實驗得到,例如,預定高度Η為該等長直導體層的預 疋寬度W的兩倍’或長直導體層的預定寬度w等於1/2 η, 即可得到所需的波形;若降低預定高度Η,則預定寬度W 需隨之變細,依據歐姆定律,可將該等長直導體層的厚度加 厚以避免阻抗增加;若是預定寬度w加寬,則預定高度Η 將會提高,可依據不同需求及特性進行設計。 參閱圖9,並配合圖8,訊號發射器15,,不斷產生一定 頻率的發送訊號,長直導體標號分別為XI〜Χ5及Υ卜Υ5, 11 M421545 假設訊號發射器15”的中央150靠近導體標號(X3,Y3)時, 未經訊號處理的偵測訊號可知靠近導體標號χ3的訊號與相 鄰的導體標號Χ2,Χ4的訊號為弱,靠近導體標號γ3的訊號 與相鄰的導體標號Υ2,Υ4的訊號為弱;經由高位元(如:16 位元)類比數位轉換後,其數位訊號可獲知χ軸掃描週期中 兩波峰間的谷底的感應訊號為Vx,及γ軸掃描週期中兩波 峰間的谷底的感應乱號為Vy,’因此就可換算出發訊裝置1 位於透明基板21的位置為(χ3,Υ3)。 综上所述’本新型電磁感應式輸入設備1〇〇之功效在 於:接收裝置2具有非迴圈式的長直導體層,在該透明基板 21上的兩正交方向分別間隔並排設置’該等長直導體層具 有降低阻抗值的預定寬度及W2 ’可降低輸入電壓並可 得到較大的感測訊號,加上配合發訊裝置丨的特殊設計,讓 電磁感應式輸入設備100得以有更廣泛的應用層面,故確實 能達成本新型之目的。 惟以上所述者,僅為本新型之較佳實施例而已,當不能 以此限定本新型實施之範圍,即大凡依本新型申請專利範圍 及新型說明内容所作之簡單的等效變化與修飾,皆仍屬本新 型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一示意圖’說明數位板輸入設備的專用筆; 圖2是一示意圖’說明數位板輸入設備的數位板; 圖3是一示意圖’說明本新型電磁感應式輸入設備的較 佳實施例; 12 M421545 圖4是一示意圖,扰明電磁感應式輸入設備的接收裝置 的一實施例; 圖5是一示意圖,說明電磁感應式輸入設備的接收裝置 的另一實施例; 圖6是一示意圖’說明電磁感應式輸入設備的發訊裝置 的一實施例,訊號發射器是具有呈十字型的鐵磁性物質及螺 • 旋圈繞導線; 圖7是一波形示意圖,說明如圖6的電磁感應式輸入設 • 備產生的相關訊號; 圖8是一不意圖’說明電磁感應式輸入設備的發訊裝置 的另一實施例,訊號發射器遠離導體至預定高度;及 圖9是一波形不意圖,說明如圖8的電磁感應式輸入設 備產生的相關说號。 13 M421545 【主要元件符號說明】 〔習知〕 150 .......中央 8.......... 專用筆 16·· ……筆尖 81 ........ 電源 162 .......上端 82 ........ 振盥電路 161 .......末端 83 ........ 鐵粉芯 2 ' 2’、2”接收裝置 84 ........ 線圈 21,· .......透明基板 9.......... 數位板 211 、212長直導體層 90 ........ 控制單元 23·· ……控制裝置 91 ........ 選擇電路 231 .......選擇電路 XI 〜X25 感測線圈 232 .......訊號處理電路 〔本創作〕 24.. .......控制單元 100·電磁感應式輸入設備 241 .......處理器 1.......... 發訊裝置 242 .......類比數位轉換器 10 ........ 筆身 31 .. .......X多工器 11 ........ 電源 32·. .......Y多工器 12 ........ 振盪電路 41 ·· .......X解多工器 13 ........ 調整機構 42·· .......Y解多工器 14 ........ 開關 H··· .......預定高度 15 、 15’ 、15”訊號發射器 W, 、w2•預定寬度The inductive signal is filtered and passed to the control unit 24 for determining that the signaling device 1 of Fig. 3 is located at the transparent substrate 21. Referring to FIG. 5', in another embodiment of the present invention, one end of the long straight conductor layers 2U, 212 of the 'receiving device 2' is grounded, and the control unit 24 receiving the split 2" is in charge of coordinating the operation of each component; 231 is electrically connected to the control unit 24 and the other end of the equal length straight conductor layers 2U, 212, and the selection circuit comprises a multiplexer 41 including a connecting long straight conductor layer 211 and a Y connecting the long straight conductor layer 2i2. The multiplexer 42 and the multiplexer 41 and the gamma multiplexer 42 are controlled by the control unit 24 to select and output the sensing signals of the adjacent plurality of straight conductor layers 2 and 1 and 9 M421545 in the (1); The processing circuit 232 is connected to the selection output of the control unit 24 and the receiving selection circuit 231, and filters the adjacent plurality of inductive signals of the equal length straight conductors 211, 212 and transmits them to the control unit 24 for the control unit 24 to determine as shown in the figure. 3 messaging device! Located at the position of the transparent substrate 21. Two embodiments of the signaling device 1 of Fig. 3 are described below. Referring to FIG. 3 and FIG. 6, in an embodiment of the transmitting device, the signal transmitter 15' is a ferromagnetic material and a spiral wire having a cross shape, and the ferromagnetic material may be sintered by magnetic ceramics and metal powder. And the spiral wires are respectively wound on the four arms of the cruciform ferromagnetic substance. The advantage of the cross type is that even if one direction is parallel to the conductor and there is no magnetic line cutting induction, the other direction is because the crucible is orthogonal to the conductor. There is induction, that is, at least one direction can sense 'in any direction, the induction signal can be obtained. Therefore, when the transmitting device 15' approaches the transparent substrate 21, the control device 23 of Fig. 3 judges the position of the transmitting device 1 by detecting the peak of the detected sensing signal. The δ' metal wire is wound on the four extension arms in detail, and the winding method is to form a first inductor 51 and a second inductor 52' respectively. When the oscillating circuit a acts, the first inductor 51 and the second inductor 52 are respectively connected to each other. Generating magnetic lines of force to interact with the equal lengths of the straight conductor layers 211, 212 on the transparent substrate 21 such that the long straight conductor layers 211, 212 closest to the signal emitter 15, receive the strongest signal' and then detect the intensity ratio The current signal transmitter 15 is located at the position of the long straight conductor layer 211 '212. Referring to FIG. 7, and with FIG. 6, the signal transmitter 15' continuously generates a transmission signal of a certain frequency, and the long straight conductors are respectively XI~Χ5 and γι~Υ5, 10 M421545. The center 150 of the signal transmitter 15 is close to the conductor number. (X3, Y3), the unprocessed detection signal shows that the signal near the conductor label (χ3, γ3) is the strongest. After the analog digital conversion, the digital signal can be used to know that the strongest sensing signal in the X-axis scanning period is Vx. And the strongest sensing signal in the γ-axis scanning period is Vy. Therefore, comparing the neighboring signals (such as three sets of adjacent signals) to determine the strongest one can convert the starting device to the position of the transparent substrate 21 (X3, Y3). In other embodiments, up to seven groups of adjacent signals can be compared for more accurate positioning. 3 and FIG. 8, in another embodiment of the transmitting device 1, unlike the FIG. 6, the signal emitter ι5" of the present embodiment is mounted on the upper end 162 of the pen tip a and ends at the end 161 of the pen tip 16. There is a predetermined height n degree Η 没 ' 系 系 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般The valley-shaped sensing signal is used as a positioning basis, and the position of the transmitting device 1 on the transparent substrate 21 is determined by the valley between the two peaks similar to the trough shape. The predetermined height Η can be obtained experimentally, for example, a predetermined height Η If the pre-twist width W of the long straight conductor layer is twice or the predetermined width w of the long straight conductor layer is equal to 1/2 η, the desired waveform is obtained; if the predetermined height 降低 is lowered, the predetermined width W is required. With the thinning, according to Ohm's law, the thickness of the equal-length straight conductor layer can be thickened to avoid an increase in impedance; if the predetermined width w is widened, the predetermined height Η will be increased, and can be designed according to different needs and characteristics. . Referring to FIG. 9 and in conjunction with FIG. 8, the signal transmitter 15 continuously generates a transmission signal of a certain frequency. The long straight conductors are respectively XI Χ Υ 5 and Υ Υ , 5, 11 M 421 545. It is assumed that the center 150 of the signal transmitter 15 ” is close to the conductor. When the label (X3, Y3) is used, the signal detected by the signal is not known to be close to the conductor number χ3 and the adjacent conductor number Χ2, the signal of Χ4 is weak, the signal close to the conductor number γ3 and the adjacent conductor label Υ2 The signal of Υ4 is weak; after the analog conversion of the high-order element (such as 16-bit), the digital signal can know that the sensing signal of the valley between the two peaks in the scan period is Vx, and two of the γ-axis scanning period. The inductive chaos of the valley bottom between the peaks is Vy, so the position of the demodulation device 1 on the transparent substrate 21 can be converted to (χ3, Υ3). In summary, the effect of the new electromagnetic induction input device 1〇〇 The receiving device 2 has a non-return type long straight conductor layer, and the two orthogonal directions on the transparent substrate 21 are respectively arranged side by side. The equal length straight conductor layer has a predetermined width and a W2 with a reduced impedance value. The input voltage can be reduced and a large sensing signal can be obtained, and the special design of the transmitting device can make the electromagnetic sensing input device 100 have a wider application level, so the purpose of the novel can be achieved. The above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent changes and modifications made by the novel patent application scope and the new description content are all It is still within the scope of this new patent. [Simplified illustration of the drawing] Fig. 1 is a schematic view of a special pen for the tablet input device; Fig. 2 is a schematic view of the tablet of the tablet input device; FIG. 4 is a schematic diagram of an embodiment of a receiving device for disturbing an electromagnetic induction type input device; FIG. 5 is a schematic view showing an electromagnetic induction type input device; Another embodiment of a receiving device of the device; FIG. 6 is a schematic diagram illustrating an embodiment of a transmitting device of the electromagnetic inductive input device The signal transmitter is a ferromagnetic material having a cross shape and a spiral winding wire; FIG. 7 is a waveform diagram illustrating the correlation signal generated by the electromagnetic induction input device of FIG. 6; Another embodiment of the transmitting device of the electromagnetic induction type input device, the signal transmitter is remote from the conductor to a predetermined height; and FIG. 9 is a waveform not intended to illustrate the related relationship generated by the electromagnetic induction type input device of FIG. No. 13 M421545 [Description of main component symbols] [Practical] 150 ....... Central 8........ Special pen 16··... Nib 81....... Power supply 162 .... upper end 82 ........ vibrating circuit 161 .... end 83 ........ iron powder core 2 ' 2 ', 2 "Receiving device 84 ........ Coil 21, ..... Transparent substrate 9 ..... Digital plate 211, 212 long straight conductor layer 90 .... .... Control unit 23··...Control device 91........Selection circuit 231.......Selection circuit XI~X25 Sensing coil 232.......Signal processing Circuit [this creation] 24..............Control unit 100·Electromagnetic induction input 241....... Processor 1........ Transmitter 242 .... Analog Digital Converter 10 ........ Pen 31 . .............X multiplexer 11 ........ Power supply 32·. .......Y multiplexer 12 ........ Oscillation circuit 41 ·· .......X solution multiplexer 13 ........ Adjustment mechanism 42·· .......Y solution multiplexer 14 ........ Switch H· ·· .......predetermined height 15 , 15 ' , 15 " signal transmitter W , , w2 • predetermined width

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Claims (1)

M421545 /、、申請專利範圍: K —種電磁感應式輸入設備,包含: 一發訊裝置,具有: 一訊號發射器,具有繞制成線圈的螺旋導線及 線圈纏繞的鐵磁性物質,且線圈形成有磁場;及 一接收裝置,具有: 一透明基板, 複數條非迴圈式的長直導體層,分別間隔並排 δ曼置於该透明基板上的兩正交方向,但各不互相連 接導通,該等長直導體層為透明且具有降低阻抗值 的預定寬度;及 一控制裝置,電性連接並檢測該等長直導體, 具有: 一控制單元,主控協調各元件運作, 一選擇電路,電性連接該控制單元及該等長直 導體層,及 一訊號處理電路,電性連接該控制單元及該等 長直導體層,當該發訊裝置的磁場接近該透明基板 上的該等長直導體的任一位置時,將該等相鄰數個 長直導體的感應訊號濾波後傳遞予該控制單元以 供判斷該發訊裝置位於該透明基板的位置。 2·依據申請專利範圍第丨項所述之電磁感應式輸入設 備,其中,该選擇電路電性連接該控制單元及該等長直 導體層的一端,受該控制單元控制將相鄰數個長直導體 15 M421545 層選擇接地;該訊號處理電路電性連接該控制單元及該 等長直導體層的另一端’將該等相鄰數個長直導體的咸 應訊號濾波後傳遞予該控制單元以供判斷該發訊裝置 位於該透明基板的位置。 3_依據申請專利範圍第1項所述之電磁感應式輸入設 備’其中,該等長直導體層的一端均接地,該選擇電路 電性連接該控制單元及該等長直導體層的另一端,受該 控制單元控制將該等長直導體層中的相鄰數個的感靡 訊號選擇輸出;該訊號處理電路電性連接該控制單元及 接收該選擇電路的選擇輸出’將該等長直導體中的相鄰 數個的感應訊號濾波後傳遞予該控制單元以供該控制 單元判斷該發訊裝置位於該透明基板的位置。 4. 依據申清專利範圍第1、2或3項所述之電磁感應式輸 入設備,其中,該發訊裝置包括一筆身及一裝設於該筆 身以一末端碰觸該透明基板的筆尖,該訊號發射器具有 呈十字型的鐵磁性物質,且螺旋導線分別繞制在十字型 的鐵磁性物質的四臂部上’於該發訊裝置接近該透明基 板時’該控制裝置利用檢測得到的感應訊號的波峰判斷 該發訊裝置位於該透明基板的位置。 5. 依據申請專利範圍第1、2或3項所述之電磁感應式輸 入設備,其中,該發訊裝置包括一筆身及一裝設於該筆 身以一末端碰觸該透明基板的筆尖,該訊號發射器裝設 於該筆尖的另一端且距離該筆尖末端一預定高度,該預 定高度之設計係於該發訊裝置接近該透明基板時,該控 16 M421545 制裝置利用檢測得到的一類似波谷形的感應訊號,以該 類似波谷形的兩波峰間的谷底判斷該發訊裝置位於該 透明基板的位置。 6. 依據申請專利範圍第5項所述之電磁感應式輸入設 備,其中,該訊號發射器裝設於該筆尖的另一端且距離 該筆尖末端的預定高度為該預定寬度的兩倍。 7. 依據申請專利範圍第5項所述之電磁感應式輸入設 備,其中,降低該預定高度時,該預定寬度亦隨之降低, 並隨之加厚該等長直導體層的厚度。M421545 /,, the scope of application for patent: K - an electromagnetic induction type input device, comprising: a signaling device having: a signal transmitter having a ferromagnetic material wound around a spiral wire and a coil formed into a coil, and the coil is formed a magnetic field; and a receiving device, comprising: a transparent substrate, a plurality of non-return type long straight conductor layers, respectively arranged in two orthogonal directions on the transparent substrate, but not connected to each other, The long straight conductor layer is transparent and has a predetermined width for reducing the impedance value; and a control device electrically connecting and detecting the long straight conductor has: a control unit, the main control coordinates the operation of each component, and a selection circuit Electrically connecting the control unit and the long straight conductor layer, and a signal processing circuit electrically connected to the control unit and the long straight conductor layer, when the magnetic field of the signaling device is close to the equal length on the transparent substrate When any position of the straight conductor is used, the sensing signals of the adjacent plurality of long straight conductors are filtered and transmitted to the control unit for determining the position of the signaling device. The position of the transparent substrate. The electromagnetic induction type input device according to the invention of claim 2, wherein the selection circuit is electrically connected to the control unit and one end of the long straight conductor layer, and is controlled by the control unit to be adjacent to each other Straight conductor 15 M421545 layer is selected to be grounded; the signal processing circuit is electrically connected to the control unit and the other end of the long straight conductor layer to filter the salty signals of the adjacent plurality of long straight conductors to the control unit For judging that the transmitting device is located at the transparent substrate. 3: The electromagnetic induction type input device according to claim 1, wherein one end of the isometric straight conductor layer is grounded, and the selection circuit is electrically connected to the control unit and the other end of the long straight conductor layer Controlling, by the control unit, selecting a plurality of sensing signals in the same length of the straight conductor layer; the signal processing circuit is electrically connected to the control unit and receiving the selection output of the selection circuit A plurality of adjacent sensing signals in the conductor are filtered and passed to the control unit for the control unit to determine the location of the transmitting device at the transparent substrate. 4. The electromagnetic induction input device according to claim 1, wherein the transmitting device comprises a body and a pen tip mounted on the pen body and touching the transparent substrate at one end The signal transmitter has a cruciform ferromagnetic material, and the spiral wires are respectively wound on the four arms of the cruciform ferromagnetic material. When the transmitting device approaches the transparent substrate, the control device is detected by the detection device. The peak of the inductive signal determines the position of the transmitting device on the transparent substrate. 5. The electromagnetic induction type input device according to claim 1, wherein the transmitting device comprises a body and a pen tip mounted on the pen body to touch the transparent substrate at one end. The signal transmitter is disposed at the other end of the pen tip and has a predetermined height from the end of the pen tip. The predetermined height is designed when the transmitting device approaches the transparent substrate, and the control device of the 16 M421545 device uses a similarity detected. The valley-shaped sensing signal determines the position of the transmitting device on the transparent substrate by the valley between the peaks of the valley-like shape. 6. The electromagnetic induction input device of claim 5, wherein the signal emitter is mounted at the other end of the nib and the predetermined height from the end of the nib is twice the predetermined width. 7. The electromagnetic induction type input device according to claim 5, wherein, when the predetermined height is lowered, the predetermined width is also lowered, and the thickness of the isometric straight conductor layer is increased accordingly. 1717
TW100216643U 2011-09-06 2011-09-06 Electromagnetic induction type input device TWM421545U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103425379A (en) * 2012-05-25 2013-12-04 福建宝格丽电子科技有限公司 Interactive electromagnetic whiteboard
TWI477753B (en) * 2013-01-18 2015-03-21 China Steel Corp Very low impact testing mechanism
TWI496066B (en) * 2013-07-10 2015-08-11 Wacom Co Ltd Electromagnetic input device and detecting coil circuit thereof
TWI564755B (en) * 2015-01-21 2017-01-01 業成光電(深圳)有限公司 Touch sensor system, touch input device and touch input method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103425379A (en) * 2012-05-25 2013-12-04 福建宝格丽电子科技有限公司 Interactive electromagnetic whiteboard
TWI477753B (en) * 2013-01-18 2015-03-21 China Steel Corp Very low impact testing mechanism
TWI496066B (en) * 2013-07-10 2015-08-11 Wacom Co Ltd Electromagnetic input device and detecting coil circuit thereof
TWI564755B (en) * 2015-01-21 2017-01-01 業成光電(深圳)有限公司 Touch sensor system, touch input device and touch input method thereof

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