201134236 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種揚聲器，特別涉及一種集音式揚聲器。 【先前技術】 [0002] 揚聲器是用於將電信號轉變為聲信號的換能器件，其由 永磁體、音圈、振膜和盆架組成。所述永磁體用於提供 磁場，當向音圈中通以電流時，音圈就會在磁場中受到 力的作用，於是音圈就在磁場中因電流強弱的變化產生 不同頻率的震動，進而帶動覆設於盆架上的振膜發出不 〇 同頻率和強弱的聲音，當這些運動達到一定的頻率就形 成了可被人感知的聲音。 [0003] 傳統的揚聲器的盆架均為内凹狀，揚聲器產生的聲波是 以擴散的方式發射出去，當視聽者與揚聲器之間的距離 較遠時，由於聲波強度的衰減以及空間中雜訊的干擾， 使得位於較遠位置的視聽者無法準確的感受到揚聲器所 發射的聲波的聲音效果。 Q 【發明内容】 [0004] 有鑑於此，有必要提供一種能遠距離定向傳送聲波的集 音式揚聲器。 [0005] 一種集音式揚聲器，其包括一聲波發生裝置及一聲波反 射片；所述聲波發生裝置包括用於發出不同頻率和強度 的聲波的振膜，所述振膜包括一内凹狀的發射面；所述 聲波反射片呈球冠狀，其包括一内凹狀的反射面；所述 聲波發生裝置與聲波反射片間隔一定距離且相互固定連 接，所述振膜的發射面朝向於聲波反射片的反射面，且 099107721 表單編號A0101 第3頁/共13頁 0992013891-0 201134236 反射面的面積大於發射面的面積。 [0006]與先前技術相比，本發明提供的的集音式揚聲器通過在 聲波發生裝置上裝設聲波反射片且使聲波反射片的反射 面的面積大於聲波發生裝置發射聲波的發射面的面積， 使聲波發生裝置所產生的聲波經聲波反射片反射後集中 傳播。 【實施方式】 [0007] 下®將結合附圖與實施例對本技術方案作進一步詳細說 明。 [0008] 如圖1所示，為本發明實施方式提供的一種集音式揚聲器 100，其用於向視聽者200遠距離定向傳播聲音。所述集 音式揚聲器100包括一聲波發生裝置10、一聲波反射片20 、至少一連接桿30、一監控裝置40、一驅動裝置50、一 支撐桿60、一基座70及一控制模組80。 [0009] 所述聲波發生裝置10包括一電磁激發元件U、一盆架12 及一振膜13。所述盆架12呈圓錐狀，所述電磁激發元件 11固設於盆架12半徑較小的一端；所述振膜13包括一發 射面131，其設置於盆架12的内侧上並與電磁激發元件11 相連接。所述電磁激發元件11激發覆設於盆架12上的振 膜13發出不同頻率和強弱的聲音。 [0010] 所述聲波反射片20呈球冠狀，且内部設有聲阻結構；本 實施方式中，該聲波反射片20内部為真空。該聲波反射 片20包括一反射面21，所述反射面21的面積大於所述振 膜13的發射面131的面積。在本實施方式中，為提高聲波 099107721 表單編號A0101 第4頁/共13頁 09920 201134236 [0011] ❹ [0012] Ο [0013] [0014] 反射效果，所述反射面21為鏡面。所述至少一連接桿3〇 的兩端分別連接在所述聲波發生裝置丨〇及所述聲波反射 片20的邊緣，使聲波發生裝置10與所述聲波反射片間隔 一定距離且相對固定連接，且聲波發生裝置1〇的發射面 131與聲波反射片20的反射面21相對。 所述監控裝置40固設於聲波反射片2〇上，且其朝向與反 射面21的朝向相同。本實施方式中，所述監控裝置4〇為 攝像元件，其用於對其視角範圍内的視聽者2〇0進行監押 。可以理解，所述監控裝置4〇也可以為紅外線、磁感應 等其他可感知視聽者200具&辦在位置的裝置。所述監控 裝置40也可以固設在其他利於監控的位置。 所述驅動裝置50包括一驅動源51及一驅動桿52。所述支 樓桿60的-端與聲波反射片2()相連接，另—端與驅動禅 52相連接。所述驅動裝置5〇帶動聲波反射片2〇環繞支撐 桿60轉動《可以理解，所述驅動裝置5〇也可帶動聲波反 射片20在與支推桿60垂直的方向的偏轉。 所述基座7G包括-上表面71及—下表面72，所述驅動源、 51垂直固設於上表面71上，所述控制模組8Qlg設於所下 表面72上。 所述控制模組80分別與聲波發生裝置1〇、監控裝置切及 驅動裝置50電性連接。該控制模組8Q接收監控裝置切所 採集的圖像資訊，並對該圖像資訊進行人臉分析，以確 疋視聽者2GG的人臉在整_像中的位置。本實施方式中 ，所述控制模組80根據hUs等（Rein_Lien Hsu，M〇〜 099107721 表單編號A0101 0992013891-0 201134236 hamed and Anil K.Jain. Face detection in col or Images. On patter Analysis and Machine I n 1: e 11 i g e n c e，2 0 0 2，2 4 (5 ) : 6 9 6 — 7 0 6 )提出的膚色 模型確定出膚色區域，然後對確定出的膚色區域的二值 圖像進行分割與合併，並結合經驗知識提取出人臉候選 區域；最後通過驗證人臉輪廓，如眼睛和嘴等人臉特徵 來判斷人臉的候選區域是否包括人臉，並最終確定人臉 在整個圖像中的位置。然後，所述控制模組80計算出圖 像中人臉的位置與圖像幾何中心的偏轉角度和偏轉方向 ，該控制模組80根據計算出的偏轉角度和偏轉方向控制 驅動裝置50轉動，使聲波反射片20朝向於視聽者200的人 臉。本實施方式中，所述控制模組80還可根據視聽者200 當前人臉的狀態，例如，休息、談笑、就餐及娛樂等以 選擇控制聲波發生裝置10播放不同頻率和強弱和聲音， 如人在休息的時候，將聲音調整的較為柔和的形式，而 在就餐的時候則將聲音調整到較為高亢的形式等等。當 監控裝置40所採集的圖像中多個人臉時，可以選擇多個 人臉所在區域的幾何中心位置為人臉的位置；可以理解 ，也可控制聲波反射片20依次朝向於多個人臉的位置之 間往返運動。 [0015] 請一併參考圖2和圖3，分別為本實施方式中集音式揚聲 器100與傳統的揚聲器的聲壓和響度波形的對比示意圖。 從圖2中可以看出，A1代表本實施方式集音式揚聲器100 的聲壓，B1代表傳統的揚聲器的聲壓；在中高頻區域（ 1 000Hz-20KHz)中A1的聲壓遠高於A2的聲壓，這表明 099107721 表單編號A0101 第6頁/共13頁 0992013891-0 201134236 所述集音式揚聲器100所產生的聲波具有明顯的方向性， 並使得聲壓強度更高提高。從圖3中可以看出，Μ代表本 貫施方式集音式揚聲器100的響度’ Β2代表傳統的揚聲器 的響度；在中高頻區域（ 1 000HZ_20KHZ) tA2的響度遠 高於B2的響度，這表明所述集音式揚聲器_能賴產生 的聲波集中定向的傳播，可有效降低聽音時環境噪音的 干擾，也可減錢高響度_圍職所造朗干擾。 [0016] Ο [0017] ❹ [0018] [0019] [0020] [0021] 本發明實施方式提供_集音式揚聲器it過在聲波發生 裝置上裝設-聲波反射片且使聲波反㈣的反射面的面 積大於聲波發生裝置發射聲波的發射面的面積，使聲波 發生裝置所產生的聲波經聲波反射片㈣彳线中傳播， 從而能實現聲波的遠距離定向傳播。 综上所述，本發明確已符合發明專利之要件，遂依法提 出專利巾請。‘_’以上所述者僅為本咖之較佳實施方 式，自不能以此限制本案之申請專利範圍9舉凡熟悉本 案技藝之人士援依本發明之精神所作之等效修錦或變化 ’皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明實施方式提供的集音式揚聲器的組合示意圖 〇 圖2係圖1中集音式揚聲器的聲壓波形對比示意圖。 圖3係圖1中集音式揚聲器的響度波形對比示意圖。 【主要元件符號說明】 集音式揚聲器100 099107721 表單編號A0101 第7頁/共13頁 0992013891-0 201134236 [0022] 視聽者200 [0023] 聲波發生裝置10 [0024] 電磁激發元件11 [0025] 盆架12 [0026] 振膜13 [0027] 發射面131 [0028] 聲波反射片20 [0029] 反射面21 [0030] 連接桿30 [0031] 監控裝置40 [0032] 驅動裝置50 [0033] 驅動源51 [0034] 驅動桿5 2 [0035] 支撐桿60 [0036] 基座70 [0037] 上表面71 [0038] 下表面72 [0039] 控制模組80 099107721 表單編號A0101 第8頁/共13頁 0992013891-0201134236 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a speaker, and more particularly to a sound collecting speaker. [Prior Art] [0002] A speaker is a transducing device for converting an electrical signal into an acoustic signal, which is composed of a permanent magnet, a voice coil, a diaphragm, and a basin frame. The permanent magnet is used to provide a magnetic field. When a current is applied to the voice coil, the voice coil is subjected to a force in the magnetic field, and the voice coil generates vibrations of different frequencies due to changes in current intensity in the magnetic field. The diaphragm that is placed on the basin frame emits sounds of different frequencies and strengths. When these movements reach a certain frequency, they form a sound that can be perceived by humans. [0003] The traditional speaker basins are all concave, and the sound waves generated by the speakers are emitted in a diffused manner. When the distance between the viewer and the speaker is long, the sound intensity is attenuated and the noise in the space is met. The interference makes the viewer located at a remote location unable to accurately sense the sound effect of the sound waves emitted by the speaker. Q [Summary Content] [0004] In view of the above, it is necessary to provide a sound collecting speaker capable of transmitting sound waves at a long distance. [0005] A sound collecting speaker comprising an acoustic wave generating device and a sound wave reflecting sheet; the sound wave generating device comprising a diaphragm for emitting sound waves of different frequencies and intensities, the diaphragm comprising a concave shape An emission surface; the acoustic wave reflection sheet has a spherical crown shape, and includes a concave reflection surface; the sound wave generating device is spaced apart from the sound wave reflection sheet and fixedly connected to each other, and the emission surface of the vibration film faces the sound wave reflection The reflective surface of the sheet, and 099107721 Form No. A0101 Page 3 / Total 13 Page 0992013891-0 201134236 The area of the reflecting surface is larger than the area of the emitting surface. Compared with the prior art, the sound collecting speaker provided by the present invention has an acoustic wave reflecting sheet mounted on the sound wave generating device and the area of the reflecting surface of the sound wave reflecting sheet is larger than the area of the emitting surface of the sound wave generating device that emits the sound wave. , so that the sound waves generated by the sound wave generating device are reflected by the sound wave reflection sheet and concentratedly propagated. [Embodiment] [0007] The present technical solution will be further described in detail with reference to the accompanying drawings and embodiments. As shown in FIG. 1 , a sound collecting speaker 100 for transmitting a sound to a viewer 200 is remotely directed to the viewer 200 according to an embodiment of the present invention. The sound collecting speaker 100 includes a sound wave generating device 10, a sound wave reflecting sheet 20, at least one connecting rod 30, a monitoring device 40, a driving device 50, a supporting rod 60, a base 70 and a control module. 80. [0009] The acoustic wave generating device 10 includes an electromagnetic excitation element U, a basin frame 12, and a diaphragm 13. The basin frame 12 has a conical shape, and the electromagnetic excitation element 11 is fixed to an end of the basin frame 12 having a smaller radius; the diaphragm 13 includes an emission surface 131 disposed on the inner side of the basin frame 12 and electromagnetically The excitation elements 11 are connected. The electromagnetic excitation element 11 excites the diaphragm 13 coated on the basin frame 12 to emit sounds of different frequencies and strengths. [0010] The acoustic wave reflection sheet 20 has a spherical crown shape and is internally provided with an acoustic resistance structure. In the present embodiment, the acoustic reflection sheet 20 is internally vacuumed. The acoustic wave reflection sheet 20 includes a reflection surface 21 having an area larger than an area of the emission surface 131 of the diaphragm 13. In the present embodiment, in order to improve the acoustic wave 099107721 Form No. A0101 Page 4 / Total 13 Page 09920 201134236 [0012] [0014] [0014] The reflection effect, the reflecting surface 21 is a mirror surface. The two ends of the at least one connecting rod 3〇 are respectively connected to the edge of the acoustic wave generating device 丨〇 and the acoustic wave reflecting sheet 20, so that the acoustic wave generating device 10 is spaced apart from the acoustic wave reflecting sheet by a certain distance and relatively fixedly connected. Further, the emission surface 131 of the acoustic wave generating device 1 is opposed to the reflection surface 21 of the acoustic wave reflection sheet 20. The monitoring device 40 is fixed to the acoustic wave reflection sheet 2, and is oriented in the same direction as the reflection surface 21. In the present embodiment, the monitoring device 4 is an imaging element for custody of a viewer 2〇0 within its viewing angle range. It can be understood that the monitoring device 4 can also be a device that is capable of perceiving viewers 200, such as infrared rays, magnetic sensors, and the like. The monitoring device 40 can also be fixed at other locations that are advantageous for monitoring. The driving device 50 includes a driving source 51 and a driving rod 52. The end of the support bar 60 is connected to the acoustic reflection sheet 2 (), and the other end is connected to the drive zen 52. The driving device 5A drives the acoustic wave reflection sheet 2 to rotate around the support rod 60. It is understood that the driving device 5 can also drive the deflection of the acoustic wave reflection sheet 20 in a direction perpendicular to the support rod 60. The pedestal 7G includes an upper surface 71 and a lower surface 72. The driving source 51 is vertically fixed on the upper surface 71, and the control module 8Qlg is disposed on the lower surface 72. The control module 80 is electrically connected to the acoustic wave generating device 1 and the monitoring device and the driving device 50, respectively. The control module 8Q receives the image information collected by the monitoring device, and performs face analysis on the image information to confirm the position of the face of the viewer 2GG in the whole image. In this embodiment, the control module 80 is based on hUs or the like (Rein_Lien Hsu, M〇~099107721, form number A0101 0992013891-0 201134236 hamed and Anil K.Jain. Face detection in col or Images. On patter Analysis and Machine I n 1: e 11 igence, 2 0 0 2, 2 4 (5 ) : 6 9 6 — 7 0 6 ) The proposed skin color model determines the skin color region, and then divides and merges the binary image of the determined skin color region. And extracting the face candidate region by combining the empirical knowledge; finally, by verifying the face contour, such as the face features such as eyes and mouth, it is judged whether the candidate region of the face includes the face, and finally the face is determined in the entire image. position. Then, the control module 80 calculates the position of the face in the image and the deflection angle and the deflection direction of the geometric center of the image, and the control module 80 controls the rotation of the driving device 50 according to the calculated deflection angle and the deflection direction. The acoustic wave reflection sheet 20 faces the face of the viewer 200. In this embodiment, the control module 80 can also selectively control the sound wave generating device 10 to play different frequencies and strengths and sounds according to the state of the current face of the viewer 200, for example, rest, laugh, dining, entertainment, etc., such as a person. In the rest, the softer form of the sound is adjusted, and when the meal is taken, the sound is adjusted to a higher form and so on. When a plurality of faces in the image collected by the monitoring device 40 are used, the geometric center position of the region where the plurality of faces are located may be selected as the position of the face; it can be understood that the position of the sound wave reflection sheet 20 facing the plurality of faces may be controlled. Round-trip motion. [0015] Please refer to FIG. 2 and FIG. 3 together for a comparison of the sound pressure and loudness waveforms of the sound collecting speaker 100 and the conventional speaker in the present embodiment. As can be seen from Fig. 2, A1 represents the sound pressure of the sound collecting speaker 100 of the present embodiment, and B1 represents the sound pressure of the conventional speaker; in the middle and high frequency region (1 000 Hz - 20 kHz), the sound pressure of A1 is much higher than that of A2. The sound pressure, which indicates 099107721 Form No. A0101 Page 6 / Total 13 Page 0992013891-0 201134236 The sound waves generated by the sound collecting speaker 100 have obvious directivity and increase the sound pressure intensity. As can be seen from Fig. 3, Μ represents the loudness of the local sound collection speaker 100 Β 2 represents the loudness of the conventional speaker; in the middle and high frequency region (1 000HZ_20KHZ) the loudness of tA2 is much higher than the loudness of B2, which indicates The sound-collecting speaker can effectively reduce the interference of ambient noise during listening, and can also reduce the high loudness of the sound. [0016] [0019] [0020] [0021] The embodiment of the present invention provides a sound collecting speaker that is provided on the sound wave generating device - the sound wave reflection sheet and the reflection of the sound wave (four) The area of the surface is larger than the area of the emitting surface of the sound wave generated by the acoustic wave generating device, so that the sound wave generated by the sound wave generating device is propagated through the sound wave reflection sheet (4), so that the long-distance directional propagation of the sound wave can be realized. In summary, the present invention has indeed met the requirements of the invention patent, and the patent towel is required in accordance with the law. '_' The above is only the preferred embodiment of this coffee, and it is not possible to limit the scope of patent application in this case. Anyone who is familiar with the skill of the present invention will be able to use the equivalent of the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a combination of sound collecting speakers provided by an embodiment of the present invention. FIG. 2 is a schematic diagram showing a comparison of sound pressure waveforms of the sound collecting speaker of FIG. FIG. 3 is a schematic diagram showing the comparison of the loudness waveforms of the sound collecting speaker in FIG. [Main component symbol description] Sound collecting speaker 100 099107721 Form number A0101 Page 7 / Total 13 page 0992013891-0 201134236 [0022] Viewer 200 [0023] Acoustic wave generating device 10 [0024] Electromagnetic excitation element 11 [0025] Rack 12 [0026] diaphragm 13 [0027] emission surface 131 [0028] acoustic reflection sheet 20 [0029] reflection surface 21 [0030] connection rod 30 [0031] monitoring device 40 [0032] drive device 50 [0033] drive source 51 [0034] Drive Rod 5 2 [0035] Support Rod 60 [0036] Base 70 [0037] Upper Surface 71 [0038] Lower Surface 72 [0039] Control Module 80 099107721 Form Number A0101 Page 8 of 13 0992013891-0