200840548 九、發明說明： 【發明所屬之技術領域】 本發明係關於—魏診器，特別是—種線 . 裝置。 ^ 【先前技術】 -般傳統聽診器係藉由伽γ形音罩接觸人體體表，以收集心 跳、胸腔啊特音信號，並_音罩的機構造型來將聲音共鳴 放大、.，二由$ "將奪音傳达至耳部。醫護人員即可依據所聽到 _的倾、驗呼吸轉音猶—步的雜_。但錄機械式音 罩只能對料做有_放大且無過濾侧，例如：t使用者經由 该聽診器賴取聲音時，容易在移動音罩的過程巾，將衣服及手 磨擦所產生的雜音共鳴放大，而造成使財耳朵制不舒服，且 音罩與人财絲_縣也會使主音受觀賴僧。進而使 所聽診的聲音不夠清晰而影響判斷的正確性。 立此和由於傳統的聽診器之導音管暴露於外，很容易受到碰 Φ $而產生$音。㈤時聽診11的耳塞設計係為了隔離外界環境的聲 曰，使用時需栓入耳道内，長久使用下來不但感到不舒服，且為 了與病人溝通又必須經常反覆戴上、取下，相#不利於使用。 由於傳統聽診器係單純的使用喇叭音罩來擷取人員身體内部 的聲音訊號，因此對於所擷取到的聲音訊號的放大倍率有限，且 热法對特定的頻帶（frequency band)作聲音之放大，亦無法去除 > 使用時所產生之摩擦聲、碰撞聲及音罩内的空氣共鳴聲等，亦造 5 成所擷取的聲音訊號受到干擾，而造成診斷的不正確。 再者，心、肺音聽診方式仍然是由醫生憑藉著其所聽到之聲 5 200840548 音進行觸，因此主觀的因素有可能會造成 ，取到的聲音訊_由使用之醫 :、而= f法確保财使时較__鱗音_，於=上 月b產生不同的結果，並且於經驗的傳承上也 、，日 f腾是-個隨時間動態變化的系統，此刻所產生 於下-難献於絲，目此如概猶 時觀察，或者是被記錄且能再現，是 域夕人同 【發明内容】 i冉見疋為相闕研究者-大研究方向。 馨独城問題，本發_主要目的在於提供—種量測多種 -内琴θ之碰裝置’藉贿決先前技術觸露關題。 為達上述目的，本發明所揭露之量測體内聲音之盎線裝置， ^括電子聽診頭、訊號處理馳、第—無線傳輸模組、第二無線 傳輸模組及輸出模組，藉以擷取一聲音訊號。 々電子I—頭、减處理模組、和第一無線傳輸模組依序相連 接第…、線傳輸模組相應於第一無線傳輸模組，與第一無線傳 輸模組以絲方式連結。輪出模組連接至第二無線傳輸模組。 …電子聽診頭接收至少一體内聲波據以產生至少一聲音訊號， 理彳論再將奪音訊號進行諸如放大並丨慮波等訊號處理。而 後由第-無線傳輸模組以無線方式傳送出處理後的聲音訊號。第 二無線傳輸模組接收到來自第一無線傳輸模組之聲音訊號，以提 供給輸出模組輪出。於此，第—無線傳輸模組與第二無線傳輸模 組之間可以Zigbee技術來進行無線傳輸。 此热線衣置更包括一標記模組，連接訊號處理模、组，以提供 200840548 _組可包括:=== 使用者進行聲音訊號的; 組 、音頻轉換模組與揚聲器依序相$。第二益線傳糾，果 2=撕她、物驅馳 接 器，二 析。：==:=:號的，-=錄音單元用以控制聲音訊號的概1號 聲音si播n—聲波圖_來，以及播放控制單元可控制 耳日=的播放（例如：再現、暫停、停止等）。 级轉^步、!^標記單狀聲賴地_祕段，以利用頻 ;並顯=::?==:換广產生，頻 置至儲存模組中取得。狀存取早讀據體内琴波的擷取位 伊干彻—量測視窗以設趙_波_取位置，藉以 ==:頭的量測位置。並且，可利用-網路連線單元連 模組的無線連=磁’以控制第二無線傳輸模組與第—無線傳輸 電子聽_可為—f容絲克風。電子聽 並且 齡體_波並«體_波產生-聲音峨 、尸耳音感勤與訊_理模組之間可__耦合電容。 7 200840548 fUl;處理Ha主要細放大魏與H電路 串接於電子聽診職第_無線傳輸模組之間。、，、'序 的二;=:透：模;=:欲偵測之體_ 作。於此，旬味考 9 ^來刀換訊就處理模組的運 的體内聲波墙、物目應於各種類型 ==間，以根據模式切換模組的控制而將放大電路與一濾200840548 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a medical device, in particular, a seed line device. ^ [Prior Art] - The traditional stethoscope is used to contact the human body surface by a gamma-shaped sound cover to collect the heartbeat, chest cavity, and the sound signal, and the mechanical shape of the sound mask is used to amplify the sound resonance., by $ " Pass the sound to the ear. The medical staff can follow the _ of the _, the breath of the test, and the _. However, the mechanical sound cover can only be made with _ magnified and unfiltered side. For example, when the user listens to the sound through the stethoscope, it is easy to move the mask of the sound mask and rub the clothes and hands. Resonance is magnified, which makes the financial system uncomfortable, and the sound mask and the people's wealth _ county will also make the main voice subject to observation. In turn, the voice of the auscultation is not clear enough to affect the correctness of the judgment. In this case and because the traditional stethoscope is exposed to the sound tube, it is easy to be hit by Φ $ to generate a $ tone. (5) The earplug design of the auscultation 11 is to isolate the external environment from the hoarseness. It should be inserted into the ear canal during use. It is not only uncomfortable to use it for a long time, but also must be repeatedly worn and removed in order to communicate with the patient. use. Since the conventional stethoscope simply uses a horn sound mask to capture the sound signal inside the human body, the magnification of the captured sound signal is limited, and the thermal method amplifies the sound frequency of a specific frequency band. It is also impossible to remove the rubbing sound, the collision sound and the air resonance sound generated in the sound mask when used, and the sound signal captured by the sound is disturbed, resulting in an incorrect diagnosis. Furthermore, the auscultation of heart and lung sounds is still touched by doctors with the sounds they hear 5 200840548, so subjective factors may be caused, the sounds obtained are from the doctors used: and = f The law ensures that the treasury is more __ scalar _, y = last month b produces different results, and in the inheritance of experience also, the day f ton is a system that changes dynamically with time, which is generated at the moment - It is difficult to give it to the silk, and it is observed as a sacred time, or it is recorded and can be reproduced. It is the domain of the eve of the same person [inventory content] i 冉 see as a researcher - the research direction. The problem of Xincheng City, the main purpose of this issue is to provide a variety of measurements - the internal music θ touch device 'bringing bribes to determine the previous technology. In order to achieve the above object, the device for measuring the sound of the body in the present invention includes an electronic auscultation head, a signal processing unit, a first wireless transmission module, a second wireless transmission module and an output module. Take an audio signal. The first electronic transmission module is connected to the first wireless transmission module in a wire manner. The first wireless transmission module is connected to the first wireless transmission module. The wheeling module is connected to the second wireless transmission module. The electronic auscultation head receives at least one of the internal sound waves to generate at least one sound signal, and the public opinion further performs signal processing such as amplification and worrying waves. The processed audio signal is then transmitted wirelessly by the first wireless transmission module. The second wireless transmission module receives the audio signal from the first wireless transmission module to provide the output module to rotate. Here, the Zigbee technology can be used for wireless transmission between the first wireless transmission module and the second wireless transmission module. The hotline device further includes a marking module, and the signal processing module and the group are connected to provide 200840548. The group can include: === the user performs the sound signal; the group, the audio conversion module and the speaker are sequentially $. The second line of transmission and correction, fruit 2 = tear her, the object is driven by the connector, the second analysis. :==:=: No., -= Recording unit is used to control the sound signal of the sound No. 1 si si n-sound map _, and the playback control unit can control the playing of the ear day = (for example: reproduction, pause, Stop, etc.). Level to ^ step, !^ mark single-sounding sound _ secret section, to use the frequency; and display =::?==: change the wide generation, the frequency is obtained in the storage module. The access to the early reading of the body of the piano wave in the position of the Iguchor - measurement window to set the position of the Zhao_wave_, by ==: the position of the head. Moreover, the wireless connection module of the module can be connected to the wireless connection module to control the second wireless transmission module and the first wireless transmission electronic device. Electronic listening and age body _ wave and body «body _ wave generation - sound 峨, corpse ear sounds and communication _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7 200840548 fUl; processing Ha main fine-amplified Wei and H circuits are connected in series between the electronic listening module _ wireless transmission module. ,,,,,,,,,,,,,,,,,,,,,,,,,,,, Here, the Xunwei test 9 ^ to the knife to deal with the module's internal acoustic wave wall, the object should be in various types ==, according to the mode switching module control, the amplifier circuit and a filter
明如$關本發日月的特徵與實作，兹配合圖式作最佳實施例詳細說 【實施方式】 、以下舉出具體實_鱗細說明本發明之内容，並以圖式作 為輔助說明。說明巾提及之符號赫關式符號。 曰、〜、、、第1圖」’係為根據本發明一實施例之體内聲音之無線 里、J衣置帛以擷取一琴音訊號，包括：電子聽診頭η〇、訊號處 ==令無線傳輸模組⑽、第二無線傳輸模組15〇及輸 電子聽診頭110、訊號處理模組12〇、和第一無線 組 140依序相連接。第二無線傳輸模组15〇相應於第一無線傳輸模組 140與第-1線傳輸模、组14〇無線連結。輸出模、组湖連接至第 二無線傳輸模組15〇。 於^電子聽診頭110擷取至少一體内聲波並根據體内聲波 產生耳曰成號，吼號處理模組120再將聲音訊號進行諸如放大 亚滤波等職處理，錢由第—麟聽模組14G以無線傳送出 8 200840548 ^认後的* 3錢。第二無線傳輸模組⑼接 f模組14Q之聲音訊號，以提供給輸出模組_出如2 來，即可㈣於輕之輸_組廳上_出量測結果。 、於此，第—無線傳輪 140與第二無線傳輸模、组15〇之間 可以Zigbee技絲進行無線傳輸’進研與其他網賴組形成— 無線傳輸網絡。換言之’只要利用多組第二無線傳輪 H雨她，則可讓多個使时同時於 訊號。 牧队N耳曰For example, the features and implementations of the Japanese and Japanese versions of the present invention will be described in detail with reference to the drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. Explain the symbol of the towel mentioned in the symbol.曰, 〜,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The wireless transmission module (10), the second wireless transmission module 15 and the electronic auscultation head 110, the signal processing module 12A, and the first wireless group 140 are sequentially connected. The second wireless transmission module 15 is wirelessly coupled to the first-to-one transmission mode and group 14 corresponding to the first wireless transmission module 140. The output mode and the group lake are connected to the second wireless transmission module 15A. The electronic auscultation head 110 captures at least one internal sound wave and generates a deafness according to the sound waves in the body, and the nickname processing module 120 performs the processing of the sound signal such as amplification sub-filtering, and the money is operated by the first-lin listening module. 14G wirelessly transmitted 8 200840548 ^ 3 * money. The second wireless transmission module (9) is connected to the audio signal of the module 14Q, and is provided to the output module _ out of 2, and then (4) on the light input _ group hall _ output measurement results. Here, the first wireless transmission wheel 140 and the second wireless transmission mode, the group 15〇 can be wirelessly transmitted by Zigbee technology, and formed into a wireless transmission network. In other words, as long as multiple sets of second wireless transmission wheels are used to rain her, multiple timings can be simultaneously applied to the signals. Shepherd N
於此，可設置一儲存模組 150,用以儲存聲音訊號。 170，連接至第二無線傳輸模組 輸出模組160可包括音頻轉換模組162和揚聲器164。 音頻轉換模組162連接第二無線傳輸模組15〇，用以將接收 到之聲音邮嫌域音航號。揚聲器⑹，修：飢、耳機等， 連接至音頻轉換模組162，肋触出音頻訊號。 此輸出模組160亦可包括顯示器166，以將聲音訊號顯示出In this case, a storage module 150 can be provided for storing the audio signal. 170. Connecting to the second wireless transmission module The output module 160 can include an audio conversion module 162 and a speaker 164. The audio conversion module 162 is connected to the second wireless transmission module 15 for transmitting the received voice. The speaker (6), repair: hunger, earphone, etc., is connected to the audio conversion module 162, and the ribs touch the audio signal. The output module 160 can also include a display 166 to display the audio signal
來，如「第2圖」所示。 舉例來說，第二絲傳倾組15〇與輸峻組廳可為設置 於個人電耻的硬體設備，因此#第—無轉輸触14G以無線 方式將聲音訊號傳送至第二無線傳輸模組15G時，個人電腦合對 接收到的聲音訊舰行解調還原，進而直接透過個人電·^出 模組〗60輸出，例如··將聲音訊號播放出和/或將聲音訊麵示在 顯示器上，同時可直接或由使用者選擇館存所接收_聲音訊號。 個人電腦可設置有分析軟體168以作為輸出模組，藉以進一 步進行聲音訊號的生理特徵分析，如「第3A、3B及4圖」。參照 9 200840548 「第3A及4圖」，此分析軟體168包括量測視窗1683、錄音單元 1682、訊號視窗ι681以及至少一播放控制單元1684。 使用者可藉由量測視窗1683設定體内聲波的擷取位置，並透 過錄音單兀1682控制聲音訊號的接收。因此，於訊號視窗1681 上可顯示出相應於接收到之聲音訊號的一聲波圖。並且接收到的 琴音訊號可先暫存於—暫存H巾，在朗者確認儲存後，才儲存 於儲存模組170内。此外，個者亦可#_餘制單元1684控 制接收到之聲音訊號的播放，例如：再現播放、暫停、停止等。 再者，更可設置一網路連線單元1685，連接至第二無線傳輸模組 150，以控制第-無線傳輸模組14〇與第二無線傳輸模组15〇的無 線連結，即使用者可藉由此網路連線單元1685切斷或連結第一無 線傳輸模組14G與第二無線傳輸模組15〇之間的無線通訊，藉以 節省量測裝置所需之電量。 再者，參照「第3B及4圖」，分析軟體168更包括標記單元 1686、頻譜轉換單元1687、頻譜視窗1688及比對單元1689。 使用者可藉由標記單元1686於訊號視窗1681上的聲波圖上 標記一轉換區段，並透過頻譜轉換單元1687啟動頻譜轉換，以進 行所標記之轉魅段的頻譜轉換，進喊生—訊號頻譜並顯示於 頻譜視窗1688上。此外，使用者更可藉由比對單元1689將轉換 =之訊號麟與至少-賴參數進行晴，_得職接收到之 聲音訊號的分析結果。 於此，頻譜轉換單元1687係利用快速傅利葉轉換技術，轉換 所標記之轉換週期。 ' 另外，具有一存取單元1690以根據體内聲波的擷取位置取出 200840548 特徵= 提供給比對單元1689進行比對。 二” > 第5圖」，電子聽診頭11Θ包括：一聲音感測器H2， 用以擷U者的體崎波，例如：心'音、肺音、胃音等，並且 根據擷取刺H啤錄岭音訊號。於聲诚卿、I〗〗與訊號 處理模組120之間可輕接有一輕合電容&。 “ II號處理模組丨2〇可包括放大電路122和濾波電路124。放 ^電路，連接至電子聽診頭刚，以放大所接收觸相應於體内Come, as shown in "Figure 2." For example, the second wire transfer group 15 〇 and the squad can be a hardware device installed in the personal shame, so the #第无转转 14G wirelessly transmits the sound signal to the second wireless transmission. When the module is 15G, the voice computer received by the personal computer is demodulated and restored, and then directly output through the personal power module 60, for example, the audio signal is played out and/or the voice signal is displayed. On the display, the _sound signal can be received directly or by the user. The personal computer can be provided with an analysis software 168 as an output module for further analysis of the physiological characteristics of the audio signal, such as "3A, 3B and 4". Referring to 9 200840548 "3A and 4", the analysis software 168 includes a measurement window 1683, a recording unit 1682, a signal window ι681, and at least one playback control unit 1684. The user can set the position of the sound wave in the body through the measurement window 1683, and control the reception of the sound signal through the recording unit 1682. Therefore, a sound wave map corresponding to the received sound signal can be displayed on the signal window 1681. And the received chord signal can be temporarily stored in the temporary storage H towel, and stored in the storage module 170 after the singer confirms the storage. In addition, the #_ residual unit 1684 can also control the playback of the received audio signal, for example, reproduction playback, pause, stop, and the like. Furthermore, a network connection unit 1685 can be provided to connect to the second wireless transmission module 150 to control the wireless connection between the first wireless transmission module 14 and the second wireless transmission module 15 , ie, the user. The wireless communication between the first wireless transmission module 14G and the second wireless transmission module 15A can be cut or connected by the network connection unit 1685, thereby saving the power required by the measuring device. Furthermore, referring to "3B and 4", the analysis software 168 further includes a labeling unit 1686, a spectrum conversion unit 1687, a spectrum window 1688, and a comparison unit 1689. The user can mark a conversion section on the sound wave map on the signal window 1681 by the marking unit 1686, and start spectrum conversion by the spectrum conversion unit 1687 to perform spectrum conversion of the marked magical segment, and enter the signal-signal The spectrum is displayed on spectrum window 1688. In addition, the user can further perform the analysis of the received sound signal by the comparison unit 1689 by converting the signal signal and the at least the parameter. Here, the spectrum conversion unit 1687 converts the marked conversion period by using a fast Fourier transform technique. In addition, there is an access unit 1690 for taking out the position based on the in-vivo sound wave. The 200840548 feature is provided for comparison with the comparison unit 1689. Second " > Figure 5", the electronic auscultation head 11 includes: a sound sensor H2, used to slap the body's body waves, such as: heart 'sound, lung sound, stomach sound, etc., and according to the thorn H beer record sound signal. Yu Shengcheng, I〗 and the signal processing module 120 can be connected with a light capacitor & The "II processing module" can include an amplifying circuit 122 and a filtering circuit 124. The circuit is connected to the electronic auscultation head to amplify the received touch corresponding to the body.
耸波之聲音輯。濾波電路124連接於放大電路122與第一無線 傳輸模、a 14G之間’以濾除所接收到之相應於體内聲波之聲音訊 號中的雜訊。 " 此濾波電路124主要係由一運算放大器处和至少一遽波單 凡a、C2 (例如··電容）所組成。運算放大器Ap連接至第一無 、、友傳輸模、、且刚。濾波單元經由—阻抗而跨接於運算放大器 ap的輸入端舆輸出端之間，且經由另一阻抗而連接至放大電ς 122。而濾波單元C2 Mlj連接至運算放大器处並經由阻抗而連接 至放大電路122。 再者，參照「第6圖」’可設置—模式_模組勘連接至訊 號處理模組12G’⑽使聽可_根觀侧之體峰波的總類 (=如：心音、肺音、胃音等）來切換訊號處理模組12〇的運作。 換言之，減處理餘120麟對各麵型的體喊波分別設置 濾波電路124’且此些濾波電路124會經由一切換電路12 _ 放大電路m，而切換電路126則根據模式切換模㈣〇的控制而 將放大電路122與一濾波電路124導通。 另外，參照「第7圖」，使用者更可透過一標記模組19〇針對 11 200840548 欲特別注紅聲料储記，錢可進 T。此標記模組携連接訊號處理模組12〇，以的聲音訊 . 此’標記模組190可利用—諸 4耳《訊號。於 連接-旗標模組194,因此使用式知鍵之類的觸發元件192 '、元件192來產生-觸發哪 P可於欲標記時，透過按壓觸發 以與訊號處理模請4^ 號。 ^s嘛結合，進哺記聲音訊 T然本發明以前述之較佳實施例揭 定本發明，任何熟習相像技 〜、亚非用以限 内，當可作些許之更動與潤飾，因此本發明之==範圍 本說明書所附之中請專利酬所界定者為準。—須視 【圖式簡單說明】 置之概弟要2=圖為根據本發明第二實施例之量測崎 第3A圖係為根據本發明之量測體 軟體之-實施例的介面示意圖; 之”，、線衣置’分析 第3B圖係為根據本發明之量測體内聲音之無線裝置， 軟體之另一實施例的介面示意圖； 刀 第4圖係為根據本發明第三實施例之量測 置之概要方塊圖； …、、、果褒 >第5圖係為根據本發明之量繼内聲音之無線裝置，電子聽 診頭及訊號處理模組之一實施例的概要方塊圖； 心 12 200840548 第6圖係為根據本發明第四實施例之量測體内聲音之無線裝 置之概要方塊圖；以及 第7圖係為根據本發明第五實施例之量測體内聲音之無線裝 ' 置之概要方塊圖。 - 【主要元件符號說明】 110····..........................電子聽診頭 112..............................聲音感測器 120..............................訊號處理模組 122..............................放大電路 124........................................濾波電路 126.·····.···……...................................切換電路 140 .......................····第一無線傳輸模組 150 ..........·.···第二無線傳輸模組 160··.·········..................輸出模組 162..····..........................音頻轉換模組 164..............................揚聲器 166····..........................顯示器 168······........................分析軟體 1681 ............................訊號視窗 1682 ............................錄音單元 1683. ····........····.··..……量測視窗 1684. ·····.........................播放控制單元 1685...........................·······網路連線單元 1686····.......................…標記單元 13 200840548 1687.............. ……頻譜轉換單元 1688·"··"··"··· ...........…頻譜視窗 1689.............. ··.··.........比對單元 1690····••…····· ···.·.····.···存取單元 • 170······.......... .....·儲存模組 180•……......... 190..........······ ..............標記模組 192................. •…·…·.·…觸發元件 41 194···............. ..............旗標模組 AP······............ ................運算放大器 Cl···.··......····. ..............濾波單元 C2................... .....................濾波單元 Cc................. ...............耦合電容The sound of the waves. The filter circuit 124 is coupled between the amplifying circuit 122 and the first wireless transmission mode, a 14G to filter out noise received in the received sound signal corresponding to the in-vivo sound wave. " This filter circuit 124 is mainly composed of an operational amplifier and at least one chopper, a, C2 (for example, a capacitor). The operational amplifier Ap is connected to the first no, the friend transfer mode, and just. The filtering unit is connected across the input terminal 舆 output of the operational amplifier ap via an impedance and to the amplifying device 122 via another impedance. The filter unit C2 M1j is connected to the operational amplifier and is connected to the amplifying circuit 122 via the impedance. Furthermore, referring to "Section 6", the settable mode can be connected to the signal processing module 12G' (10) to make the total class of the body peak waves of the listener_root side (= heart sound, lung sound, Stomach sound, etc.) to switch the operation of the signal processing module 12A. In other words, the subtraction processing 120 lin provides a filter circuit 124 ′ for each body scream wave, and the filter circuit 124 transmits the circuit m via a switching circuit 12 _, and the switching circuit 126 switches the mode according to the mode (4). Controlling the amplifier circuit 122 and a filter circuit 124 to conduct. In addition, referring to "Picture 7", the user can also use the mark module 19〇 for 11 200840548 to pay special attention to the red sound storage, money can enter T. The tag module carries the audio signal to the signal processing module 12, and the tag module 190 can utilize the "four ears" signal. In the connection-flag module 194, the trigger element 192' and the element 192 are used to generate - trigger which P can be marked, and the trigger is used to process the module with the signal. The invention is based on the preferred embodiments described above, and any of the familiar art, the Asian and African are used within the limits, and the invention can be modified and retouched. == Range The scope of this manual is subject to the definition of patent remuneration. - BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 2] The figure is a schematic diagram of an interface according to the second embodiment of the present invention. FIG. 3A is an interface diagram of an embodiment of a measuring body according to the present invention; FIG. 3B is a schematic diagram of another embodiment of a wireless device for measuring sound in a body according to the present invention; FIG. 4 is a third embodiment of the present invention. A schematic block diagram of the measurement device; ...,, and fruit> Figure 5 is a schematic block diagram of an embodiment of a wireless device, an electronic auscultation head, and a signal processing module according to the present invention. ; heart 12 200840548 FIG. 6 is a schematic block diagram of a wireless device for measuring sound in a body according to a fourth embodiment of the present invention; and FIG. 7 is a measurement of sound in a body according to a fifth embodiment of the present invention; Outline block diagram of the wireless device. - [Key component symbol description] 110····..........................Electronic auscultation head 112..............................Sound sensor 120............. ................Signal Processing Module 122.......... ....................Amplification circuit 124........................... .............Filter circuit 126.·········............................ .............Switching circuit 140 ....................... First wireless transmission module 150 ..........·····The second wireless transmission module 160············................ .. Output Module 162..····.................... Audio Conversion Module 164....... .......................speaker 166····........................ ..... Display 168······........................ Analysis software 1681 .......... ..................Signal window 1682.............................. Recording Unit 1683. ····............................................ Measurement window 1684. ·····.............. ...........Playback Control Unit 1685...........................······ Road connection unit 1686····......................... mark unit 13 200840548 1687............ .. ...... spectrum conversion unit 1688·"··"··"··· .............. Spectrum window 1689............. · ····.........Comparative unit 1690····•••·························································· ····......................·Storage Module 180•............... 190..........··· ··· ..............Marking module 192......................................... Triggering element 41 194 ···...............................flag module AP······......... .................Operational Amplifier Cl······.......................... ...filter unit C2........................................... Filter unit Cc. ..................................Coupling capacitor
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