1301964 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種聲音的傳輸方法及 聲波能夠以定向傳輸方式自—發射端可聽 使用該方法的裝置。 逆倒文姑傳輪方法及 【先前技術】 性，也就是說’當輸出-可)聽以=== 無法有效控雛方向性。 ^聲波是指鮮大於2〇ΚΗζ的聲波，其具有日月顯的定向性， 也就疋說’超#波可以被限制或控爾播的方向。麵， 耳無法聽到或辦別超聲波’因此就「聽聲音 聲波難以運用。 ^ ^ 然而適當地賴超較觀可聽聲波，使該___ 到定向傳送的想法已有相關報導及研究。可聽聲音的定向傳播可 以被運用，吵雜的賣場中’當消費者到達特定的產品位置，則廣 ，及發射紐自動定向傳送-可聽聲波，將該產品的資訊清楚地 送達消費者的耳朵；又在一展示場所中，利用定向傳送可聽聲波， 則可以對特定產品的消費者進行該產品的解說，至於相鄰細近 產品的解說聲音則不會混入造成干擾。所以定向傳播可聽聲波具 有相當大的使用效果。 此外，我國專利1232666號發明專利案，也利用超聲波載送 可聽聲波的定向傳播方式消除在通訊過程中所產生的回授音，藉 此提高通訊品質。 5 1301964 【發明内容】 運用於語音- j聲波的技術 聲：話^低=明=?= 著該接收裝置組酉ϋ不同位詈，啦收衣置之間，並且奴 細空隨定向傳她侧確地適用於大 -可輸方法’係產生一鱗波載波以及 耳皮，接者猎一调頻(FM)調變器運作，使該可 具妓轉躺‘故該超 并波載波了核為-發射· 減含二種聲音傳輸裝置，該裝置包含一發訊機用以 接U “波，並將該可聽聲波載入-超聲波載波;-超聲波 將該超聲波載波及受載的該可聽聲波發射出去，一超 尸耳^波J用以接收超聲波送波器所輸出之超聲波訊號；一接收 以，波叉波器訊號連接，用以接收超聲波受波器所輸出的 訊5虎’並且遽除超聲波載波以及輸出該可聽聲波；一聲音輸出哭 與該接收機訊號連接藉此輸出可聽聲波。 w 、，·其中該發，機包含-音緻大單元用卩放大可聽聲波之頻 ΐ:又fr調制單元訊號連接該音頻放大單元及一超聲波產生 單元j藉該姻單元的運作使該可聽聲波載入該超聲波載波。 該接收機包含一檢波單元與該超聲波受波單元作訊號連接用 以濾除該超聲波载波 =上揭示之為本發明之聲音傳輸方法及裝置的技術手段。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。 【實施方式】 6 1301964 發明所揭露之聲音傳輸方法所使用之技術原理係將一可聽 猶輸的特性傳 -麩?ί?第1圖，本發明所揭示之聲音傳輸方法的程序同包含: -調變_、一傳送麵她，以及 波。riffi程序12係包含產生一超聲波载波以及一可聽聲 ϋίΐ载波的音頻大於2〇khz，具有定向傳播的特性， U 。該可聽聲波為音頻介於施至臟 綱。又較域由—放綠運作以放 作，藉一調頻⑽調變器或一腹調變電路的運 得钟声:嫌：曰湧之可聽聲波被載入到該超聲波載波，藉此使 侍礙^錢波以及該可聽聲波組合^成一複合聲波。稭便 抑ίΐΐίίί程序16係利該超聲波载波的定向傳播特性，使 射器，如此該可聽4可=^二為該可聽聲波的發 入至======複合聲波輸 以顯現並發蜂音。更進—步可聽聲波可 前置，電路放大訊號後，再通過‘波二檢以-音敝大||___作，據^可聽聲波的 上述說明的方法中，該可聽聲波的 擴音機，而接收端則被安排在預定空間範圍 一來’廣播系統所發出的可聽聲波以本 1301964 收端，進而使該可聽聲波與該超聲波載波分離以顯現出可聽麸 音。是以本發明不但可以使一可聽聲音確實達到定向傳備 果，還可以適用於較大空間以符合實際使用的需求。 1 . 另外，對於需要保密的訊息傳遞情形，例如情報或機密的 息傳遞，利用本發明定向傳播聲音的設計，可以達到單向或雔^ 的傳播效果，以及具有防止「隔牆有耳」的竊聽效果。又" 請參閱第3圖，本發明用以定向傳播可聽聲波的裝置包含一 發訊機40、一超聲波送波器5〇、一超聲波受波器6〇、一接二 70及一聲音輸出器80。 該發訊機40包含一音頻放大單元42，一調制單元44與該音 頻放大單元42作訊號連接，一超聲波產生單元46與該調 44訊號連接，以及一電力放大單元48與該調制單元44訊號連接。 其中該音頻放大單元42可以是一音頻放大電路；該調制單元 44可以是調頻(FM)調變電路；該超聲波產生單元46可以是一高 頻振盪電路。 該超聲波送波器(發射器)5〇係與該發訊機4〇訊號連接。更具 體而言，該超聲波送波器50與該電力放大單元48作訊號連接， 並且能夠發射出超聲波訊號。 該超聲波受波器(接收器)6〇則相對該超聲波送波器5〇用以接 • 收超聲波訊號。 士實際上’該超聲波送波器50與該超聲波受波器6〇可以皆為 超聲波感測器且同樣具有壓電效應。對超聲波送波器5〇而言係將 電氣信號轉換成壓力的信號去壓縮周圍空氣，產生電壓逆效應。 對超聲波受波器60而言，其接收前述的受壓縮空氣並壓縮在壓電 材料上以產生電壓正效應，使壓力信號轉換成電的信號。一般可 以使用40KHz以上的發射/接收頻率。 人該接收機70與該超聲波受波器6〇訊號連接。該接收機7〇包 含一前置放大單元72，一檢波單元74與該前置放大單元72訊號 連接，一音頻放大單元76與該檢波單元74訊號連接。 1301964 transducer，IDT) 92和94尺寸而定。例如採用晶體ST板可構成 100MHz的振盪器，而且藉由切換接點的方式，可以改變振盡器所 ^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 聲波送波斋)所傳出之超聲波的方向。依本發明之設計，可根據使 用狀況，適當地切換傳播方向·，玖提供更多位置的接收效果 因為，=略她置的減鮮柳，不會城雜干擾的情形。 是以藉由上述裝置可以確實達到使可聽聲波定向傳播的目 的，而且具有原音播放以及播放範圍固定(不魏)的效果，此外對 於需要保魏息的軌而言，本綱具·著的實用性。 又上超聲波產生單元46及超聲波受波器、6〇可以被整合 内’換言之，每一聲源的發射端，同時也可以是接收端，同 圍，凡以均等之技蓺年與、m+，「由二兔峨勢之推利辄 =範發 1301964 【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圖係本杳明超聲波產生單元及超聲波受波器結構示羞圖 【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 14調變程序 18可聽聲波顯現程序 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 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 111301964 IX. Description of the Invention: [Technical Field] The present invention relates to a method for transmitting sound and a device capable of audibly using the method in a directional transmission manner from a transmitting end. The method of reversing the wenwan pass and the [previous technique], that is to say, 'when the output-can be heard' === can not effectively control the directionality. ^Sound wave refers to the sound wave of fresher than 2〇ΚΗζ, which has the directionality of the sun and the moon, which means that the 'super# wave can be restricted or controlled. In the face, the ear can't hear or do the ultrasound. Therefore, it is difficult to use the sound waves. ^ ^ However, the idea of ___ to directional transmission has been reported and studied appropriately. Directional propagation of sound can be used in noisy stores. 'When a consumer reaches a specific product location, it is wide, and the launcher automatically transmits audible-audible sound waves, and the information of the product is clearly delivered to the consumer's ear; In a display place, by using the directional transmission of the audible sound wave, the product of the specific product can be explained by the consumer, and the interpretation sound of the adjacent fine product is not mixed into the interference. Therefore, the directional sound is transmitted. In addition, the invention patent of Patent No. 1232666 of China also uses the directional propagation mode of ultrasonically transmitting audible sound waves to eliminate the feedback sound generated during the communication process, thereby improving the communication quality. 5 1301964 [ SUMMARY OF THE INVENTION The technical sound applied to the voice-j sound wave: the voice ^ low = Ming = ? = the receiving device group 酉ϋ different positions, the clothing Between, and the slaves are directional, and her side is indeed applicable to the large-transmission method, which produces a scale wave carrier and ear stalks, and the receiver hunts a frequency modulation (FM) modulator to make it work. The 并 妓 故 故 故 故 故 故 故 故 故 故 故 故 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超 超- the ultrasonic wave transmits the ultrasonic carrier and the audible sound wave, and a super corpse wave J is used to receive the ultrasonic signal output by the ultrasonic wave transmitter; and a receiving wave wave signal connection is used for receiving Receiving the output of the ultrasonic wave receiver and removing the ultrasonic carrier and outputting the audible sound wave; a sound output is connected to the receiver signal to output an audible sound wave. w , , · Among the hairs, the machine includes a -tone large unit for amplifying the frequency of the audible sound wave: the fr modulation unit signal is connected to the audio amplifying unit and an ultrasonic generating unit j The listening sound wave is loaded into the ultrasonic carrier. The receiver includes a detection unit coupled to the ultrasonic wave receiving unit for filtering the ultrasonic carrier. The technical means for transmitting the sound transmission method and apparatus of the present invention is disclosed. The embodiments of the technical means for practicing the present invention are described below in conjunction with appropriate drawings. [Embodiment] 6 1301964 The technical principle used in the sound transmission method disclosed by the invention is to transmit an audible feature to the bristles. The first embodiment of the sound transmission method disclosed in the present invention includes: - Modulation _, a transmission face her, and waves. The riffi program 12 consists of generating an ultrasonic carrier and an audible ΐ ΐ 的 carrier with an audio greater than 2 〇 khz with directional propagation characteristics, U . The audible sound wave is the audio that is applied to the viscera. Compared with the domain------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The combination of the interference and the audible sound wave is combined into a composite sound wave. The straw 16 ΐΐ ΐΐ ί ί 程序 程序 程序 系 系 系 系 程序 超声波 超声波 程序 超声波 超声波 超声波 超声波 超声波 程序 超声波 超声波 超声波 超声波 超声波 超声波 程序 程序 程序 超声波 程序 超声波 程序 超声波 超声波 超声波 程序 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 程序 程序 程序 程序Buzzer. Further, the audible sound wave can be pre-positioned, and after the circuit amplifies the signal, the wave-detection is performed by -wave 检大||___, according to the method described above for the audible sound wave, the audible sound wave The amplifier is arranged, and the receiving end is arranged in the predetermined space range. The audible sound wave emitted by the broadcasting system ends at 1301964, and the audible sound wave is separated from the ultrasonic carrier to reveal an audible bran. Therefore, the present invention can not only make an audible sound truly achieve the directional transmission, but also can be applied to a large space to meet the needs of actual use. 1. In addition, for the case of message transmission that requires confidentiality, such as information or confidential information transmission, the design of the directional sound of the present invention can achieve the one-way or 雔^ propagation effect, and has the effect of preventing the "walled ear" eavesdropping effect. Moreover, referring to FIG. 3, the apparatus for directing and transmitting audible sound waves of the present invention comprises a transmitter 40, an ultrasonic wave transmitter 5, an ultrasonic wave receiver 6 〇, a second 70 and a sound. Output 80. The transmitter 40 includes an audio amplifying unit 42. A modulating unit 44 is connected to the audio amplifying unit 42. An ultrasonic generating unit 46 is connected to the modulating signal 44, and a power amplifying unit 48 and the modulating unit 44 are connected. connection. The audio amplifying unit 42 may be an audio amplifying circuit; the modulating unit 44 may be a frequency modulation (FM) modulation circuit; and the ultrasonic generating unit 46 may be a high frequency oscillating circuit. The ultrasonic wave transmitter (transmitter) 5 is connected to the transmitter 4 signal. More specifically, the ultrasonic wave transmitter 50 is connected to the power amplifying unit 48 and can emit an ultrasonic signal. The ultrasonic wave receiver (receiver) 6 is connected to the ultrasonic wave transmitter 5 for receiving an ultrasonic signal. In fact, the ultrasonic wave transmitter 50 and the ultrasonic wave receiver 6 can both be ultrasonic sensors and have a piezoelectric effect. For the ultrasonic wave transmitter 5, a signal that converts an electrical signal into a pressure is applied to compress the surrounding air to produce a voltage inverse effect. For the ultrasonic wave receiver 60, it receives the aforementioned compressed air and compresses it on the piezoelectric material to generate a positive voltage effect, which converts the pressure signal into an electrical signal. A transmission/reception frequency of 40 kHz or more can generally be used. The receiver 70 is connected to the ultrasonic wave receiver 6 signal. The receiver 7A includes a preamplifier unit 72, a detector unit 74 is coupled to the preamplifier unit 72, and an audio amplifier unit 76 is coupled to the detector unit 74. 1301964 transducer, IDT) Depending on the size of 92 and 94. For example, a crystal ST board can be used to form a 100 MHz oscillator, and by switching the contacts, the frequency of the vibrator can be changed. In conjunction with a phase shifter 96, the direction of the ultrasonic waves transmitted by the ultrasonic generating unit 46 (or ultrasonic wave transmitting) can be changed. According to the design of the present invention, the propagation direction can be appropriately switched according to the use condition, and the receiving effect of more positions can be provided. Therefore, the above device can surely achieve the purpose of directional transmission of the audible sound wave, and has the effect of playing the original sound and the fixed playing range (not Wei), and for the track that needs to maintain the Wei interest, the tool Practicality. Further, the ultrasonic generating unit 46 and the ultrasonic wave receiving device and the 6 〇 can be integrated. In other words, the transmitting end of each sound source can also be the receiving end, the same circumference, and the equal technology and the m+, "Tricks from the two rabbits" = Fan Fa 1301964 [Simplified illustration of the drawings] Figure 1 is a block diagram of the propagation method of the present invention. Figure 2 is an audible sound wave of the present invention carried by ultrasonic waves for directional propagation 3 is a schematic diagram of a propagation device of the present invention. Fig. 4 is a schematic diagram showing the structure of the ultrasonic generating unit and the ultrasonic wave receiving device of the present invention. [Main component symbol description] 12 sound wave generating program 16 transmitting and receiving program 22 ultrasonic transmitting 14 modulation program 18 audible sound wave display program 30 sound source 42 audio amplification unit 46 ultrasonic generation unit 50 ultrasonic wave transmitter 70 receiver 74 detection unit 80 sound output unit 40 transmitter 44 modulation unit 48 power amplification unit 60 ultrasonic reception Wave filter 72 preamplifier unit 76 audio amplifying unit 92, 94 refers to fork transducer 11