201023827 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種身體感測取得系統，特別是關於一種 結合訊號傳送與接收之身體感測取得系統。 【先前技術】 參考圖1，其顯示習知個人區域網路之方塊示意圖。習 知個人區域網路（Personal Area Network, PAN)10係以人體 當介質，作訊號傳輸與溝通。習知個人區域網路10包括一 傳輸器11、一第一電極12、一第二電極13及一接收器14° 該傳輸器11包括一編碼器111及一傳送放大器112。訊號輸 入至編碼器111，經訊號編碼並由該傳送放大器112將編碼 訊號放大，傳送至接觸人體之該第一電極I2，經由人體當 介質，由接觸人體之該第二電極13接收訊號。該接收器14 包括一接收放大器141及一解碼器142。該接收放大器141 將由該第二電極13接收之訊號放大處理，並以解碼器I42 解碼，以取得原訊號。 習知個人區域網路10之缺點在於僅能作單方面之訊號傳 輸或單方面之訊號接收。 因此，有必要提供一種創新且具進步性的結合訊號傳送 與接收之身體感測取得系統，以解決上述問題。 先前技術： [1] 日本專利公開第2005033748號，專利名稱：ULTRASLIM PIEZOELECTRIC RECEIVER。 [2] T. G. Zimmerman, "Personal Area Networks: Near-field 132173.doc 201023827 intrabody communication," IBM Systems Journal, vol. 35, no. 3&4, pp. 609-617, 1996.201023827 IX. Description of the Invention: [Technical Field] The present invention relates to a body sensing acquisition system, and more particularly to a body sensing acquisition system that combines signal transmission and reception. [Prior Art] Referring to Figure 1, there is shown a block diagram of a conventional personal area network. It is known that the Personal Area Network (PAN) 10 is used as a medium for signal transmission and communication. The conventional personal area network 10 includes a transmitter 11, a first electrode 12, a second electrode 13, and a receiver 14. The transmitter 11 includes an encoder 111 and a transmission amplifier 112. The signal is input to the encoder 111, and the signal is encoded and amplified by the transmitting amplifier 112, and transmitted to the first electrode I2 contacting the human body, and the signal is received by the second electrode 13 contacting the human body via the human body as a medium. The receiver 14 includes a receive amplifier 141 and a decoder 142. The receiving amplifier 141 amplifies the signal received by the second electrode 13 and decodes it by the decoder I42 to obtain the original signal. The disadvantage of the conventional personal area network 10 is that it can only be used for unilateral signal transmission or unilateral signal reception. Therefore, it is necessary to provide an innovative and progressive body sensing acquisition system that combines signal transmission and reception to solve the above problems. Prior Art: [1] Japanese Patent Publication No. 2005033748, patent name: ULTRASLIM PIEZOELECTRIC RECEIVER. [2] T. G. Zimmerman, "Personal Area Networks: Near-field 132173.doc 201023827 intrabody communication," IBM Systems Journal, vol. 35, no. 3&4, pp. 609-617, 1996.
[3] Measurement Specialties, "Piezo Film Sensors Technical[3] Measurement Specialties, "Piezo Film Sensors Technical
Manual". 【發明内容】 本發明提供一種結合訊號傳送與接收之身體感測取得系 統，包括：一具多層結構之傳送接收器、一偵測器、一調 赢 變器、一訊號傳輸器及一訊號接收器。該具多層結構之傳 送接收器包括一壓電電容及一金屬層電容，該壓電電容及 該金屬層電容串聯，且具有一共同接地端，該壓電電容用 以感測一壓力並產生一壓電訊號。該偵測器用以接收該壓 電訊號，以輸出一偵測訊號。該調變器用以調變該偵測訊 號’以輸出一調變訊號。該訊號傳輸器連接至該金屬層電 容’用以傳送該調變訊號。該訊號接收器連接至該金屬層 電容’用以接收該調變訊號。 Φ 本發明結合訊號傳送與接收之身體感測取得系統之該金 屬層電容可用以傳送訊號及接收訊號，以節省成本及面 積。另外，本發明之系統將壓電電容與金屬層電容串聯， 利用>1電薄膜傳送與接收訊號的技術，可由人體當介質做 訊號的傳輸與接收，若調變訊號由金屬層電容從身體的某 端發出’則身體的另一端也可接收該調變訊號。 【實施方式】 參考圖2，其顯示本發明結合訊號傳送與接收之身體感 測取得系統之電路示意圖。本發明結合訊號傳送與接收之 132173.doc -6- 201023827 身體感測取得系統20包括：一具多層結構之傳送接收器 21、一偵測器24、一調變器25、一訊號傳輸器％及一訊號 接收器27。該具多層結構之傳送接收器21包括一壓電電容 22及一金屬層電容23，該壓電電容22及該金屬層電容23串 聯’且具有一共同接地端，該壓電電容22用以感測一壓力 並產生一壓電訊號。當該壓電電容22感測該壓力時，會將 物理能量轉換成電氣訊號，並傳輸至該偵測器24。 參 參考圖3及圖4，其顯示本發明具多層結構之傳送接收器 之剖面及上視示意圖。該具多層結構之傳送接收器21由上 至下依序包括一第一隔離層211、一第一金屬層212、一壓 電薄膜213、一第二金屬層214、一第二隔離層215、一第 二金屬層216及一第三隔離層217。其中該第一金屬層 212、該壓電薄膜213及該第二金屬層214係為該壓電電容 22’該第二金屬層214、該第二隔離層215及該第三金屬層 216係為該金屬層電容23。 φ 該第一隔離層211、該第二隔離層215及該第三隔離層 217之面積相同，該第一隔離層211之面積大於該第三金屬 層216之面積，該第三金屬層216之面積大於該第二金屬層 214之面積，該第二金屬層214之面積與壓電薄膜213之面 積相同’該第二金屬層214之面積大於該第一金屬層212之 面積。 該具多層結構之傳送接收器21另包括三導線218、219、 221，其中第一導線21 8設置於該第一隔離層211及該第一 金屬層212之間；第二導線219設置於該第二金屬層214及 132173.doc 201023827 該第二隔離層215之間；第三導線221設置於該第三金屬層 216及該第三隔離層217之間。三導線218、219、221均係 呈螺旋狀，俾利於固定於上述金屬層或隔離層之間。 配合參考圖2、3及4，該具多層結構之傳送接收器21利 用金屬層與金屬層間之隔離層作電性隔離，並形成二串聯 電容，且該壓電電容21及該金屬層電容22利用該該第二導 線219連接至該共同接地端，以防止干擾。該第一導線218 φ 連接至該偵測器24;該第三導線221連接至該訊號傳輸器 26及該訊號接收器27。 該偵測器24用以接收該壓電訊號，以輸出一偵測訊號。 該調變器25用以調變該偵測訊號，以輸出一調變訊號。該 訊號傳輸器26連接至該金屬層電容，用以傳送該調變訊 號。該訊號接收器27連接至該金屬層電容，用以接收該調 變訊號。另外，較佳地’該偵測器、該訊號傳輸器、該訊 號接收器與該具多層結構之傳送接收器具有該共同接地 ❿ 端 ’以接地隔開不同訊號干擾。 本發明結合訊號傳送與接收之身體感測取得系統之該金 屬層電容可用以傳送訊號及接收訊號，以節省成本及面 積。另外’本發明之系統將壓電電容與金屬層電容串聯， 利用壓電薄膜傳送與接收訊號的技術，可由人體當介質做 訊號的傳輸與接收，若調變訊號由金屬層電容從身體的某 端發出’則身體的另一端也可接收該調變訊號。因此，若 將本發明該結合訊號傳送與接收之身體感測取得系統積體 化，以做成一晶片，則該晶片可完成偵測、傳送及接收。 132173.doc 201023827 惟上述實施例僅為說明本發明之原理及其功效，而非限 制本發明。因此，習於此技術之人士對上述實施例進行修 改及變化仍不脫本發明之精神。本發明之權利範圍應如後 述之申請專利範圍所列。 【圖式簡單說明】 圖1顯示習知個人區域網路之方塊示意圖； 圖2顯示顯示本發明結合訊號傳送與接收之身體感測取 得系統之電路示意圖； 圖3顯示本發明具多層結構之傳送接收器之剖面示意 圖；及 圖4顯示本發明具多層結構之傳送接收器之上視示意 圖。 【主要元件符號說明】 10 習知個人區域網路 11 傳輸器 12 第一電極 13 第二電極 14 接收器 20 結合訊號傳送與接收之身體感測取得系統 21 具多層結構之傳送接收器 22 壓電電容 23 金屬層電容 24 偵測器 25 調變器 132173.doc 201023827The invention provides a body sensing acquisition system combined with signal transmission and reception, comprising: a multi-layer structure transmission receiver, a detector, a tuning converter, a signal transmitter and A signal receiver. The multi-layered transmission receiver includes a piezoelectric capacitor and a metal layer capacitor, the piezoelectric capacitor and the metal layer capacitor are connected in series, and have a common ground terminal, the piezoelectric capacitor is used to sense a pressure and generate a Piezoelectric signal. The detector is configured to receive the voltage signal to output a detection signal. The modulator is configured to modulate the detection signal ′ to output a modulation signal. The signal transmitter is coupled to the metal layer capacitor for transmitting the modulation signal. The signal receiver is coupled to the metal layer capacitor </ RTI> for receiving the modulating signal. Φ The metal layer capacitance of the body sensing acquisition system of the present invention combined with signal transmission and reception can be used to transmit signals and receive signals to save cost and area. In addition, the system of the present invention connects the piezoelectric capacitor and the metal layer capacitor in series, and uses the technology of transmitting and receiving signals by the optical film of the invention, and the signal can be transmitted and received by the human body as a medium, and if the modulation signal is from the body of the metal layer capacitor The other end of the body sends 'the other end of the body can also receive the modulation signal. [Embodiment] Referring to Figure 2, there is shown a circuit diagram of a body sensing acquisition system incorporating signal transmission and reception in accordance with the present invention. The present invention combines signal transmission and reception 132173.doc -6- 201023827 The body sensing acquisition system 20 includes: a multi-layer structure transmission receiver 21, a detector 24, a modulator 25, and a signal transmitter%. And a signal receiver 27. The multi-layer structure of the transmission receiver 21 includes a piezoelectric capacitor 22 and a metal layer capacitor 23, the piezoelectric capacitor 22 and the metal layer capacitor 23 are connected in series and have a common ground terminal, and the piezoelectric capacitor 22 is used for sensing A pressure is measured and a piezoelectric signal is generated. When the piezoelectric capacitor 22 senses the pressure, the physical energy is converted into an electrical signal and transmitted to the detector 24. Referring to Figures 3 and 4, there are shown cross-sectional and top plan views of a transport receiver having a multi-layer structure of the present invention. The multi-layered transmission receiver 21 includes a first isolation layer 211, a first metal layer 212, a piezoelectric film 213, a second metal layer 214, and a second isolation layer 215, which are sequentially arranged from top to bottom. A second metal layer 216 and a third isolation layer 217. The first metal layer 212, the piezoelectric film 213, and the second metal layer 214 are the piezoelectric capacitor 22'. The second metal layer 214, the second isolation layer 215, and the third metal layer 216 are The metal layer capacitor 23. The area of the first isolation layer 211, the second isolation layer 215, and the third isolation layer 217 is the same, the area of the first isolation layer 211 is larger than the area of the third metal layer 216, and the third metal layer 216 The area of the second metal layer 214 is the same as the area of the second metal layer 214. The area of the second metal layer 214 is larger than the area of the first metal layer 212. The multi-layered transmission receiver 21 further includes three wires 218, 219, 221, wherein the first wire 21 8 is disposed between the first isolation layer 211 and the first metal layer 212; the second wire 219 is disposed on the The second metal layer 214 and 132173.doc 201023827 are disposed between the second isolation layer 215; the third wire 221 is disposed between the third metal layer 216 and the third isolation layer 217. The three wires 218, 219, and 221 are spirally formed to be fixed between the metal layer or the isolation layer. With reference to FIGS. 2, 3 and 4, the multi-layer structure of the transmission receiver 21 is electrically isolated by an isolation layer between the metal layer and the metal layer, and forms a two-series capacitor, and the piezoelectric capacitor 21 and the metal layer capacitor 22 The second wire 219 is connected to the common ground to prevent interference. The first wire 218 φ is connected to the detector 24; the third wire 221 is connected to the signal transmitter 26 and the signal receiver 27. The detector 24 is configured to receive the piezoelectric signal to output a detection signal. The modulator 25 is configured to modulate the detection signal to output a modulation signal. The signal transmitter 26 is coupled to the metal layer capacitor for transmitting the modulation signal. The signal receiver 27 is coupled to the metal layer capacitor for receiving the modulation signal. In addition, preferably, the detector, the signal transmitter, the signal receiver and the multi-layered transmission receiver have the common ground terminal ′ to ground and separate different signal interference. The metal layer capacitance of the body sensing acquisition system of the present invention combined with signal transmission and reception can be used to transmit signals and receive signals to save cost and area. In addition, the system of the present invention connects the piezoelectric capacitor and the metal layer capacitor in series, and the technology of transmitting and receiving signals by using the piezoelectric film can be transmitted and received by the human body as a medium, and if the modulation signal is made from a metal layer capacitor from the body The end sends out 'the other end of the body can also receive the modulation signal. Therefore, if the combined signal transmission and reception body sensing acquisition system of the present invention is integrated to form a wafer, the wafer can be detected, transmitted and received. The above examples are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Therefore, those skilled in the art can make modifications and changes to the above embodiments without departing from the spirit of the invention. The scope of the invention should be as set forth in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a conventional personal area network; FIG. 2 is a circuit diagram showing a body sensing acquisition system incorporating signal transmission and reception according to the present invention; FIG. 3 is a diagram showing the transmission of a multi-layer structure of the present invention. A schematic cross-sectional view of the receiver; and Figure 4 shows a top view of the transmission receiver of the present invention having a multi-layer structure. [Main component symbol description] 10 Conventional personal area network 11 Transmitter 12 First electrode 13 Second electrode 14 Receiver 20 Body sensing acquisition system combined with signal transmission and reception 21 Multi-layered transmission receiver 22 Piezoelectric Capacitor 23 Metal Layer Capacitor 24 Detector 25 Modulator 132173.doc 201023827
26 訊號傳輸器 27 訊號接收器 111 編碼器 112 傳送放大器 141 接收放大器 142 解碼器 211 第一隔離層 212 第一金屬層 213 壓電薄膜 214 第二金屬層 215 第二隔離層 216 第三金屬層 217 第三隔離層 218 第一導線 219 第二導線 221 第三導線 132173.doc -1026 signal transmitter 27 signal receiver 111 encoder 112 transmission amplifier 141 receiving amplifier 142 decoder 211 first isolation layer 212 first metal layer 213 piezoelectric film 214 second metal layer 215 second isolation layer 216 third metal layer 217 Third isolation layer 218 first wire 219 second wire 221 third wire 132173.doc -10