200816162 九、發明說明： 【發明所屬之技術領域】 本發明係關於i聲音的傳輸方法聽置，制是指一可 ======自-魏制達-触端的傳輪 【先前技術】 可聽聲波是指人耳可或辦狀聲波，其 〇赫錄(20Hz)至2萬赫兹(2〇ΚΗζ)之間。然波明 是說，當輸出―可聽聲波，其會=面= 擴散傳播，無法有效控制其方向性。 乃 性，gif Hi於2GKHZ的聲波，其具有鶴的定向 f也就疋戒，超聲波可以被限制或控制傳播的方向。麸而， 超聲波，因此就「聽聲音」思考方向 如地運用超聲波載送可聽聲波，使該可聽聲波可以 究者 以定向傳播可聽聲波具有相當大的使用效果。k成干k所 送可利1232666號發明專利案，也利用超聲波載 ⑽生的回授 9 200816162 【發明内容】 時降低回授音的產生。本發 Ξ間了Ltii以^二用:置—二射弋收裝置 明确地適用於大範圍空間提供定向傳^聲音的效^本电明可以 本發，包含—種聲音的傳輸方法，敍生 3-：聽，波;接著藉一調頻(FM)調變器運作，使該可舻聲波 超聲波載波具有定向_的^生， ，該超耳波载波可以成為—發射器用以傳送該可 收端；於接收端利用—檢波器齡該超i波載波 則該可聽聲波可以顯現發出聲音。 以接t音傳難置，該裝置包含—發訊機用 舞，亚將該可聽聲波载人—超聲波載波；一超 ^ f超紐紐錢载_可聽聲波發射出 哭· 波益用以接收超聲波送波器所輸出之超聲波訊 i超聲波受波11訊號連接，用以接收超聲波受 、、古一 *ί*立认，並且濾除超聲波载波以及輸出該可聽聲 ^輸出讀該接收機喊連接藉此輸出可聽聲波。 、中if訊機包含—音頻放大單元㈣放大可聽聲波之 ίίι包ΐ’鮮元峨連接該音頻放大單元及一超聲波 早元’藉該调制單元的運作使該可聽聲波载入該超聲波载 疫0 該接《包含-檢波單讀該超聲波受波單元作訊號連 接用以濾除該超聲波載波 以上揭不之為本發明之聲音傳輸方法及裝置的技術手 •^而具體實踐本發明之技術手段之實施例係配合適當圖式說 明如下。 200816162 【實施方式】 騎揭露之聲音傳輸方法所使用之技術原理係將一 载人―?聲波载波’_超聲波載波可作定向傳播的 特性傳送該可聽聲波。具體的實施步驟如下： 請巧第1圖，本發贿揭*之聲音傳輸方法的程序同包 各.一聲波產生程序12、-調變程序14、—傳送及接收程序 16，以及一可聽聲波顯現程序18。 荩、由該生，序12係包含產生一超聲波载波以及一可聽 耳波。/、中該超聲波载波的音頻大於2〇KHz，具有定向的 Πΐ人耳無絲到或綱。該可聽紐為音齡於20Hz 。又聊嶋由一放 運作該觸⑽觀料―】咖變電路的 此I可聽聲波被載入到該超聲波載波，藉 使ϋί’波載波以及該可聽聲波組合形成—複合聲波。 性程序16係利該超聲波載波的定向傳播特 I，使該心$波_由—發射猶轉 收端予以接收。更詳細而古，往夹關筮9闽I五田接 波是被-超聲波發射哭:閱圖所示，該超聲波載 今可鞋㈣纽:22所射出，而該超聲波載波又被視為 =了|,耳波的钱心如此該可聽聲波可以達到定向傳播的效 波於L該可11聲波顯現程序18係將該複合聲 ^波盗或檢波電路濾除該超聲波載波，使得哕可舻 了利用-刖置放大電路放大訊號後，再 =波:及音;音頻放大器或音頻放大電路= 上述說明的方法中，該可聽聲波的發射端可以是廣播系統 200816162 或擴音機，而接收端則被安排在預定空間範圍中的不同仪置。 如此一來，廣播系統所發出的可聽聲波以本發明所揭露 被載入到-超聲波載波，並且隨著超波聲载波的傳播而^= 播到該，收端，進而使該可聽聲波與該超聲波載波分離以顯 出可聽聲音。是以本發明不但可以使一可聽聲音確實達到^向 傳備的效果，還可以適用於較大空間以符合實際使用的需求°。 1 ’對於需要保密的訊息傳遞情形，例如練或機密的 汛息傳遞，利用本發明定向傳播聲音的設計，可以達到 雙向=播效果’以及具有防止「隔膽有耳」的竊聽效果。a 兩參閱第3圖’本發明用以定向傳播可聽聲波的裝置 -發訊機40、-超聲波送波器5Q、—超聲波 收機70及-聲音輸出器8〇。 又及』接 兮立^讯，4〇包含一音頻放大單元42，一調制單元44斑 =頻^單^ 42作赠絲，—鱗絲生單元46與該調 制早το 44訊號連接，以及—雷六访士 g - μ 44訊號連接。 電力放大早70 48與該調制單元 罝- ίι中該音頻放大單元42可以是一音頻放大電路；該調制 調變電路;該超聲波產生單元46可以 疋一回頻振盈電路。 更且ΪΪΪ波^\器(發射器)50係與該發訊機4〇訊號連接。 ΐ ，波115°與該電力放大單元48作訊號 連接亚且旎夠發射出超聲波訊號。 以接器)6G則相對該超聲波送波器50用 為赶Ί超耸波㈣^ 5°與該超聲波受波n6。可以皆 壓電效應。對超聲波送波器50而 逆效庫^: ί t ί的信號去_周圍空氣，產生賴 延政應。對超琴波受波器6〇而言，1 並壓縮在壓電材料上以產生雷壓^則以的文£細二虱 包冊上以屋生包昼正效應，使麗力信號轉換成電 12 200816162 的信號。一般可以使用概Hz以上的發射/接收頻率。 ，收機70與該超聲波受波器6〇訊號連接。該接收機 i單元72，—檢波單元74與該前置放大單元 訊^接:、單元76與該檢波單元74訊號連接。 i - L 置士放大單元72為一電訊號之放大電路；該檢波 m皮電路;該音頻放大單元76為一音頻放大電路。 廏用，申!!該超聲波受波器60乃壓電效應原理的 二鑪波器60受到與其諧振頻率相同的音波壓力 型”，方能符合實際·之需是以對 #女s，經常加入譜振電路或帶通濾波器，以使 大以爲i /與该超音波感測器譜振頻率相同的信號做放 =。传到取大的輸出（最好的靈敏度），並抑制其他信號的干 8G與該接收機70訊號連接。更具體而言， 益可以是—揚聲器且與該音頻放大單元76訊號 雜访if in可聽料，當該音源3G輸人該發訊機40， i苡:超聲ί 元44侧，使得可聽聲波 該電力放大匕ί8接^141所產生之超聲波上’接著透過 較大的恭$彳—& 8±k阿犯罝，據此使得該超聲波送波50接受 穴轉換成較大_力信號輸出。 庫將波器60接收到該壓力信號後即透過壓電效 應Ϊ力t遽轉換成電力訊號。 ιί 會因為傳播距離而衰減，相對地，轉換後的 會ί，減的情形，因此利用該前置放大單元72提 r ;二8守的電力信號包含著超聲波載波所產生的電力 '2, 3G所發出之可聽聲波的電力信號。 皮早％ 74係収齡由該超聲波載波所產生的電子 13 200816162 一而該音源30(可聽聲波)所產生的電力信號則經該音頻放 作形成適當強度的聲音信號輸送賴聲音輸出器 80予以輸出。 請參閱第4圖所示，超聲波產生單元46及超聲波受波哭 6〇内可岐包含顧壓電技術所製成之表面聲波(surfa(； =cous，c wave，SAW)#：|自’其振動貞率錢叉狀換能器 岡％和94尺寸而定。例如採用晶體 ST板可構成ίο·的振龍，而且藉由切換接點的方式，可200816162 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for transmitting an i-sound, which refers to a transmission that can be ======自-魏制达-contact end [prior art] audible Sound waves are sound waves that can be heard by human ears, ranging from 20 Hz to 20,000 Hz (2 〇ΚΗζ). Ran Boming is saying that when the output - audible sound wave, it will = face = diffusion spread, can not effectively control its directionality.乃, gif Hi in 2GKHZ sound waves, which have the orientation of the crane f, the ultrasonic wave can be limited or controlled the direction of propagation. Bran, ultrasonic, so the direction of "listening to the sound" to use the ultrasonic wave to carry the audible sound wave, so that the audible sound wave can be used to direct the audible sound wave to have a considerable effect. k Chenggank sent the invention patent of No. 1232666, and also used the feedback of the ultrasonic carrier (10) 9 200816162 [Summary of the invention] to reduce the generation of the back tone. In this issue, Ltii is used in two ways: the two-shot device is clearly applicable to the large-scale space to provide the effect of directional transmission of sound. The power can be transmitted, including the transmission method of sound. 3-: listening, wave; then borrowing a frequency modulation (FM) modulator to operate, so that the squeaky ultrasonic wave carrier has an orientation _, the super-ear wave carrier can become a transmitter for transmitting the receivable end The audible sound wave can appear to emit sound when the super-i wave carrier is used at the receiving end. It is difficult to set up the t-sound, the device includes - the transmitter uses the dance, the sub-sound audible wave carries the person - the ultrasonic carrier; the super ^ f super New Zealand money _ the audible sound wave emits the cry · Bo Yi The ultrasonic wave transmitted by the ultrasonic wave transmitter is connected to the wave signal 11 for receiving the ultrasonic wave, the ancient one, and filtering the ultrasonic carrier and outputting the audible sound. The machine shouts the connection to output an audible sound wave. , the if signal machine includes - an audio amplifying unit (4) amplifying the audible sound wave ί ί ΐ '' fresh 峨 connected to the audio amplifying unit and an ultrasonic early element 'by the operation of the modulating unit to load the audible sound wave into the ultrasonic wave Epidemiology 0. The technique of the present invention is embodied by the method of including the -detecting single-reading ultrasonic wave receiving unit for signal connection for filtering out the ultrasonic carrier and not for the sound transmission method and apparatus of the present invention. The embodiments of the means are described below in conjunction with the appropriate figures. 200816162 [Embodiment] The technical principle of the method for transmitting the sound of the uncovering is to transmit the audible sound wave by a characteristic that the human-sound wave carrier'_ultrasonic carrier can be directionally propagated. The specific implementation steps are as follows: Please refer to Figure 1 for the procedure of the sound transmission method of the bribes. The sound generation program 12, the modulation program 14, the transmission and reception program 16, and an audible program. The sound wave appears to program 18. In this case, the sequence 12 includes generating an ultrasonic carrier and an audible ear wave. /, the audio of the ultrasonic carrier is greater than 2 〇 KHz, and the directional human ear has no wire to or from the outline. The audible button is at 20 Hz. In addition, the I audible sound wave is loaded into the ultrasonic carrier by the operation of the touch (10), and the ϋί' wave carrier and the audible sound wave are combined to form a composite sound wave. The sexual program 16 is advantageous for the directional propagation of the ultrasonic carrier, so that the heart$wave_ is received by the transmitting terminal. More detailed and ancient, to the 筮 筮 闽 闽 闽 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 五 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波 超声波The heart of the ear wave is such that the audible sound wave can reach the effect of the directional propagation in the L. The 11 sound wave display program 18 filters the composite sound wave burglary or detection circuit to filter the ultrasonic carrier, so that After the signal is amplified by the -amplifier circuit, then = wave: chord; audio amplifier or audio amplifier circuit = in the above described method, the transmitting end of the audible sound wave may be the broadcasting system 200816162 or the amplifier, and the receiving end Different instruments arranged in the predetermined space range. In this way, the audible sound wave emitted by the broadcast system is loaded into the -ultrasound carrier as disclosed in the present invention, and is broadcasted to the end with the propagation of the super-wave sound carrier, thereby making the audible sound wave Separated from the ultrasonic carrier to reveal an audible sound. Therefore, the present invention can not only achieve an audible sound, but also can be applied to a large space to meet the needs of actual use. 1 ' For message delivery situations that require confidentiality, such as training or confidential suffocation, using the design of the directional sound of the present invention, it is possible to achieve a two-way=casting effect' and to have an eavesdropping effect that prevents "breasting". a. Referring to Fig. 3, the apparatus for directing audible sound waves of the present invention - the transmitter 40, the ultrasonic wave transmitter 5Q, the ultrasonic receiver 70, and the - sound output unit 8A. And the 兮 立 立 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Ray six visitor g - μ 44 signal connection. The power amplification early 70 48 and the modulating unit 罝- ίι The audio amplifying unit 42 may be an audio amplifying circuit; the modulation modulation circuit; the ultrasonic generating unit 46 may be a frequency hopping circuit. Moreover, the chopper (transmitter) 50 is connected to the transmitter 4 signal. ΐ, the wave 115° is connected to the power amplifying unit 48 as a signal and is sufficient to emit an ultrasonic signal. The connector 6G is used to drive the supersonic wave (4)^5° with the ultrasonic wave receiving device n6. Can be piezoelectric effect. For the ultrasonic wave transmitter 50, the counter-effect library ^: ί t ί signal goes to the surrounding air, resulting in the reliance of the government. For the super-sonic wave receiver 6〇, 1 is compressed on the piezoelectric material to generate the lightning pressure, and the text is converted into a positive effect on the package. Signal for the 12 12 1616162. Generally, a transmission/reception frequency of more than Hz can be used. The receiving machine 70 is connected to the ultrasonic wave receiving device 6 signal. The receiver i unit 72, the detecting unit 74 is connected to the preamplifier unit, and the unit 76 is connected to the detecting unit 74. The i-L set amplifying unit 72 is an amplifying circuit of an electric signal; the detecting m-skin circuit; the audio amplifying unit 76 is an audio amplifying circuit.廏用,申!! The ultrasonic wave receiver 60 is a piezoelectric effect principle of the second furnace 60 is subjected to the same sonic pressure type as its resonant frequency, in order to meet the actual needs of the #女s, often joined Spectral circuit or bandpass filter to make the signal with the same frequency as i / with the same frequency as the ultrasonic sensor. Pass to the larger output (best sensitivity) and suppress other signals The dry 8G is connected to the receiver 70. More specifically, the speaker can be a speaker and the audio amplifying unit 76 can be used to listen to the inaudible material. When the audio source 3G inputs the transmitter 40, i苡: Ultrasound ί 44 side, so that the audible sound wave is amplified by the power 匕ί8 connected to the ultrasonic wave generated by ^ 141 'then through the larger Gong 彳 & & & & 罝 罝 罝 罝 罝 罝 罝 罝 罝 罝 罝 罝The receiving hole is converted into a larger _ force signal output. After receiving the pressure signal, the library converts the power signal into a power signal through the piezoelectric effect force 。. ιί will attenuate due to the propagation distance, and relatively, after the conversion The situation of ί, minus, thus utilizing the preamplifier unit 72 r; The power signal of the second 8 shou includes the power signal of the audible sound wave emitted by the power generated by the ultrasonic carrier '2, 3G. The skin is early 74% of the electrons generated by the ultrasonic carrier 13 200816162 The power signal generated by the sound source 30 (audible sound wave) is output through the audio signal to form an appropriate sound signal to the sound output device 80. Referring to FIG. 4, the ultrasonic generating unit 46 and the ultrasonic wave are crying. 6〇 can contain surface acoustic waves made by Gu piezoelectric technology (surfa(; =cous,c wave,SAW)#:|from 'the vibration rate of the fork-like transducers% and 94 sizes For example, a crystal ST board can be used to form a ί · 振, and by switching the contacts,
，改雙振盪态所產生的頻率。再配合一相移器96，可改變超 聲波產生單元46(或超聲波送波器)所傳出之超聲波的方向。依 本發明之設計，可根據使用狀況，適當地切換 ，更多位置的接收效果，且_每-個接收位置的 同，不會造成互相干擾的情形。 是以藉由上述裝置可以確實達到使可聽聲波定向傳播的 H上而且具有原音播放以及播放範_定(不發散)的效果， 卜對於需要保密傳遞訊息的情況而言，本發明具有顯著的實 用 。 又上超聲波產生單元46及超聲波受波器6〇可以被 言之，每一聲源的發射端，同時也可以是接收端， ^里母:接收端也可以是聲源發射端，如此一來，相對二點間 可以進行雙向對話，而且不會有對話内容外洩的情形發生。 以發明之較佳實施例以及設計圖式，惟較“施例 3苗凡，等之技藝手段、或為下述「中請專利範 人:範圍而實施者’均不脫離本發明之範疇而為申請 14 200816162 【圖式簡單說明】 第1圖係本發明之傳播方法之程序方塊圖。 第2圖係本發明可聽聲波受載於超聲波作定向傳播之示意圖。 第3圖係本發明之傳播裝置示意圖。 第4圖係本發明超聲波產生單元及超聲波受波器結構示意圖。 【主要元件符號說明】 12聲波產生程序 16傳送及接收程序 22超聲波發射器 30音源 42音頻放大單元 46超聲波產生單元 50超聲波送波器 70接收機 74檢波單元 80聲音輸出器 14調變程序 18可聽聲波顯現程序 40發訊機. 44調制單元 48電力放大單元 60超聲波受波器 72前置放大單元 76音頻放大單元 92、94指叉狀換能器, change the frequency generated by the double oscillation state. In conjunction with a phase shifter 96, the direction of the ultrasonic waves transmitted by the ultrasonic generating unit 46 (or the ultrasonic wave transmitter) can be changed. According to the design of the present invention, it is possible to appropriately switch according to the use condition, and the receiving effect of more positions, and the same as each of the receiving positions, does not cause mutual interference. Therefore, the above device can surely achieve the effect of directional transmission of the audible sound wave and has the effect of playing the original sound and playing the game (not diverging), and the present invention has a remarkable effect in the case where the message needs to be secretly transmitted. practical. Further, the ultrasonic generating unit 46 and the ultrasonic wave receiving unit 6〇 can be said, and the transmitting end of each sound source can also be the receiving end, and the receiving end can also be the sound source transmitting end, thus There is a two-way dialogue between the two points, and there is no leakage of the conversation. The preferred embodiment of the invention and the design drawings are not inferior to the scope of the invention, as compared with the "example 3, Miao Fan, etc., or the following "patent applicant: scope" For the application 14 200816162 [Simplified description of the drawings] Fig. 1 is a block diagram of the propagation method of the present invention. Fig. 2 is a schematic diagram of the audible sound wave of the present invention carried by the ultrasonic wave for directional propagation. Schematic diagram of the propagation device. Fig. 4 is a schematic view showing the structure of the ultrasonic generating unit and the ultrasonic wave receiving device of the present invention. [Description of main component symbols] 12 sound wave generating program 16 transmitting and receiving program 22 ultrasonic transmitter 30 sound source 42 audio amplifying unit 46 ultrasonic generating unit 50 ultrasonic wave transmitter 70 receiver 74 detection unit 80 sound output device 14 modulation program 18 audible sound wave display program 40 transmitter. 44 modulation unit 48 power amplification unit 60 ultrasonic wave receiver 72 preamplifier unit 76 audio amplification Units 92, 94 refer to forked transducers
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