1298849 九、發明說明·· 【發明所屬之技術領域】 本發明侧於-種觸摸式感應裝置，·侧於—鋪 體雜訊之感應裝置。 、以應人 【先前技術】 現在已有各種麵之麵裝置，且已應麟電齡統和料 這種裝置中人們最為熟悉之一種是φ “ ^ ^ ” 署扣甘ϋ 粳疋私恥之示态。儘管鼠標器作為位 置‘不π備極，、g遍，惟其具有機械部件，並且要求有—個平面 ，球能在其^滾動’，且’為了有合理之分辨率，鼠標器通常需要滾動較 、之距離，：a狀標n需要¥缺手缝得光標飾，從 從電腦上鍵入之主要目的。 &〗人們 毅過多種嘗試，試圖提供—種裝置，以檢測用作指示設備之拇指 或二他手才曰之位置，以代替鼠標器，這種設備之理想特性是低功耗、高分 辨率、低成本。現在已有多種類型之觸摸式感應裝置，如 及電容式^ 电a玩 一如美國專利局2003年3月18日公告之專利號為653497〇之專利，其 揭示了—翻用電感技術之旋轉式位置檢測技術，該技術包括兩部分，第 -部分糟由空間上圍繞旋轉軸之旋轉運動產生變化之磁場，第二部分包括 兩，f训來感應第-部分所產生之磁場，並產生相應之訊號，上述訊 抓著第#部分與第二部分之相對角度之變化而變化，則根據變化之訊號 即可測出第-部分與第二部分之相對位置。 一如美國專利局2〇〇3年4月8日公告之專利號為6545614之專利。其揭 Γ了:ί電，感應裝置，該裝置包括一振蕩電路單元及一電子節點單元， ，^路單疋為電子節點單元提供-高頻率訊號，如果偵測器侧到人 ，如手指之·，電子節點單元之阻抗賴之變化，當手指接觸電子節點 4則產生之電阻與電子節電之輸人端之電阻她配，反射波變小，藉由檢 測反射波並將其與_鏗廳單元比較若反射度變小即可確定人體觸摸。 再如美國專利局1996年2月27日公告之專利號為Μ·??之專利， 其揭不了 #電容位置感應器，該感應器在與感應焊盤相連之垂直及水平 6 1298849 方向上之導線上具有一特性電容。該電容將隨著人體之接觸之活動或者人 體相對於感應矩陣之運動而發生變化，矩陣中X及Y方向之每個交點之電 容之變化被轉換為X及γ方向上之電壓，這些電壓經分析電路處理後產生 代表人體中心位置之電子訊號。 上述專利技術雖然在性能上有了改進，如響應速度快，分辨率高，操 作簡單，但是其結構及電路均比較複雜，生產成本亦較高，且其耗電較大， 手指感應之準確度不高易產生誤操作。 【發明内容】 基於上述内容，本發明之目的在於提供一尊觸摸式感應裝置，該感應 t置可藉由觸摸感應人體之雜訊，從而實現預期之功能。 本發明之目的是藉由以下方案實現的，提供一種觸摸式感應裝置。該 裝置包括：一訊號源、一導電體、一感應器、一整流電路及一偵測器。該 訊號源，產生一交流訊號；該導電體，與該訊號源相連；該感應器，與該 導電體構成一電容，用於感應人體接觸時產生之雜訊，並輸出一訊號；該 偵測器，與該感應器相連，用於接收由該感應器輸出之訊號；該整流&路， 其一jr而與该甙號源相連，另一端與該偵測器之負輸入端相連，可將從該訊 號源輸出之父"IL5fL號整流為一負直流電源，同時產生一雜訊，該負直流電 源做為該偵測器的負電源。 ' 【實施方式】 清參閱第’係為觸摸式感應裝置之實施方式之電路圖。該觸摸式 感應裝置包括一訊號源11、一導電體12、一感應器13、一直流電源14、 -整流電路15、-_器16、-終端電路17以及一第—電阻18。該訊號 源11與該導電體I2相連；該感應器13與該導電體u構成一個電容，同 時與該偵測器16連接；該直流電源14與該_器16之正輸入端連接的同 時，可作爲該_器16之正電源；該整流電路15 一端與該訊號源u連接， 另-端與該债測器15之負輸入端連接；終端電路17連接於侦測器16之輸 出端，該第一電阻18連接於偵測器16之正負兩個輸入端。 4减源11、餘產生-交流訊號，在無外力狀況下，靠電路藉由該 導電體12與碱應器13構成之電容達到—種平衡狀態，當人體手指賴 1298849 …贼應ii 13時，人體所帶之雜傳輸至該感絲13,龍平錄態被破壞， • 齡有部分減雜至翻^ 16,該躺II 16將触到之訊毅大之後傳 • 輸至終‘電路17 ’ $終端電路17對該訊號做相應處理以達到細實現之功 ，能’該偵測器、16為高阻抗輸入電路，可保證有較微弱之訊號送達時亦可被 • 檢測到二該侧器16亦可為高阻抗放大器；整流電路15將從該訊號源U 輸出之·Λ#息為-負直流電源，同時產生一雜訊，該負直流電源可做為 該，測器16,負電源，一般情況下，_器16採用雙電源輸人，可以擴 大包壓之動態輸出範m，該雙電源的供應也採用直流電輸人，在本發明中 f用整流電路15產生之負直流電源主要是因為該整流電路15在產生負直 電源的同時會產生-雜訊，該雜訊可增加周i環境之雜訊，同時作用於 、體亦南了人體之雜訊，如此在人體觸摸該感應器Η時，被感應器η 感應，之雜訊亦增強，即可提高感應之靈敏度，該直流電源14為該偵測器 16提，正直流電源的同時，為賴測器16提供—偏壓輸人，―第二電阻 幻=端與該直流電源14連接，一端與該偵測器比之正輸入端連接，一第 三電，^ 一端與該偵測器16之正輸入端連接，一端接地，該第二電阻R1 及^三電阻幻為直流魏14提供偏壓電阻；該第-電阻丨8為_交流電 阻’藉由該電阻18對人體形成迴路，以便於偵測器16將接收到之訊號放 大之後傳輸至終端電路17。 气籴本發明雖以較佳實施方式揭露如上，然其並非用以限定本發明。任何 • f悉此項技藝者，在不脫離本發明之精神和範酬，當可做更動與潤錦， 口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。 【圖式簡單說明】 第圖係為觸摸式感應裝置之實施例之電路圖。 【主要元件符號說明】 訊號源 導電體 二 感應器 直流·電源 = 整流電路 15 8 1298849 • 偵測器 16 終端電路 17 第一電阻 18 第二電阻 R1 第三電阻 R2 91298849 IX. INSTRUCTION DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention is directed to a touch sensing device and an inductive device for side-by-side noise. In order to meet people [pre-technical], there are various face-to-face devices, and one of the most familiar devices in the device is the φ " ^ ^ " Department of Deduction of Ganzi State. Although the mouse is used as the position 'not π, the g-pass, but it has mechanical parts, and requires a plane, the ball can be scrolled in it, and 'in order to have a reasonable resolution, the mouse usually needs to scroll. Distance, a: a mark n need to be missing the hand to sew the cursor, from the main purpose of typing from the computer. &〗 People have tried a variety of attempts to provide a device to detect the position of the thumb or the other hand used as a pointing device to replace the mouse. The ideal feature of this device is low power consumption, high resolution. ,low cost. There are many types of touch sensing devices, such as the capacitive type, which is the same as the patent number 653497〇 published by the US Patent Office on March 18, 2003, which discloses the rotation of the inductive technology. Position detection technology, the technology comprises two parts, the first part is caused by a magnetic field that changes spatially around the rotation axis, and the second part includes two, f training to induce the magnetic field generated by the first part, and correspondingly The signal is changed according to the change of the relative angle between the ## part and the second part, and the relative position of the first part and the second part can be measured according to the change signal. For example, the Patent No. 6545614 announced by the US Patent Office on April 8, 2002. It discloses: ί, the sensing device, the device comprises an oscillating circuit unit and an electronic node unit, and the 路 疋 提供 provides a high frequency signal for the electronic node unit, if the detector side is to a person, such as a finger · The impedance of the electronic node unit changes. When the finger touches the electronic node 4, the resistance generated by the electronic node is matched with the resistance of the input terminal of the electronic power saving. The reflected wave becomes smaller, by detecting the reflected wave and making it with the hall. Unit comparison If the reflectance becomes smaller, the human touch can be determined. In addition, as disclosed in the Patent Office of the United States Patent Office on February 27, 1996, the patent number is ,·??, which does not reveal the #capacitive position sensor, which is in the vertical and horizontal direction of the 1 1298849 connected to the sensing pad. There is a characteristic capacitance on the wire. The capacitance will change with the contact of the human body or the movement of the human body relative to the sensing matrix. The change of the capacitance of each intersection of the X and Y directions in the matrix is converted into the voltage in the X and γ directions. After the analysis circuit is processed, an electronic signal representing the center position of the human body is generated. Although the above patented technology has improved performance, such as fast response, high resolution and simple operation, its structure and circuit are relatively complicated, the production cost is also high, and its power consumption is large, and the accuracy of finger sensing is high. Not high and easy to produce misuse. SUMMARY OF THE INVENTION Based on the above, an object of the present invention is to provide a touch sensing device that can sense the noise of a human body by touch to achieve a desired function. The object of the present invention is to provide a touch sensing device by the following scheme. The device comprises: a signal source, a conductor, a sensor, a rectifier circuit and a detector. The signal source generates an alternating current signal; the electrical conductor is connected to the signal source; the inductor forms a capacitor with the electrical conductor for sensing noise generated by human contact and outputs a signal; the detecting Connected to the sensor for receiving a signal output by the sensor; the rectification & path, a jr connected to the source of the signal, and the other end connected to the negative input of the detector The parent "IL5fL number output from the signal source is rectified into a negative DC power source, and a noise is generated at the same time, and the negative DC power source acts as a negative power source of the detector. [Embodiment] The following is a circuit diagram of an embodiment of a touch sensing device. The touch sensing device comprises a signal source 11, a conductor 12, an inductor 13, a DC power source 14, a rectifier circuit 15, a -16, a terminal circuit 17, and a first resistor 18. The signal source 11 is connected to the conductor I2; the inductor 13 and the conductor u form a capacitor and is connected to the detector 16; and the DC power source 14 is connected to the positive input terminal of the _16 The rectifier circuit 15 can be connected to the signal source u, the other end is connected to the negative input end of the debt detector 15 , and the terminal circuit 17 is connected to the output end of the detector 16 . The first resistor 18 is connected to the positive and negative inputs of the detector 16. 4 reduction source 11, residual generation-alternating signal, in the absence of external force, the circuit is stabilized by the capacitance formed by the electric conductor 12 and the alkali accumulator 13 when the human finger depends on 1298849 ... the thief should be ii 13 The human body carries the miscellaneous transmission to the sensation wire 13, and the Longping recording state is destroyed. • The age is partially reduced to the turn of the ^16. The lie II 16 will touch the news after the signal is passed. • The final circuit 17 The $terminal circuit 17 processes the signal accordingly to achieve the finer implementation. The detector and 16 are high-impedance input circuits, which ensure that when a weak signal is delivered, it can also be detected. The device 16 can also be a high-impedance amplifier; the rectifier circuit 15 outputs the signal from the signal source U to a negative-DC power supply, and generates a noise, and the negative DC power supply can be used as the detector 16, negative. Power supply, under normal circumstances, _ device 16 uses dual power input, can expand the dynamic output range of the package voltage, the supply of the dual power supply also uses direct current input, in the present invention, the negative DC power generated by the rectifier circuit 15 Mainly because the rectifier circuit 15 generates a negative direct power source. Produce - noise, the noise can increase the noise of the environment in the week i, and at the same time, it acts on the body and the noise of the human body. When the human body touches the sensor, it is sensed by the sensor η, and the noise is also The enhancement can improve the sensitivity of the induction. The DC power supply 14 provides the detector 16 with a positive DC power supply, and provides a bias input for the detector 16, and a second resistor and a DC power supply. 14 connected, one end is connected with the detector than the positive input end, a third electric, ^ one end is connected with the positive input end of the detector 16, one end is grounded, the second resistor R1 and ^ three resistors are imaginary DC Wei 14 provides a bias resistor; the first resistor 为8 is _AC resistor', and the resistor 18 forms a loop for the human body, so that the detector 16 amplifies the received signal and transmits it to the terminal circuit 17. The present invention is disclosed above in the preferred embodiments, but is not intended to limit the invention. Anyone who knows the skill of the art, without departing from the spirit and scope of the present invention, may make changes and remedies. The scope of protection of the present invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The figure is a circuit diagram of an embodiment of a touch sensing device. [Main component symbol description] Signal source Conductor 2 Inductor DC power supply = Rectifier circuit 15 8 1298849 • Detector 16 Terminal circuit 17 First resistor 18 Second resistor R1 Third resistor R2 9