TW466883B - An electroacoustic communications unit - Google Patents
An electroacoustic communications unit Download PDFInfo
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- TW466883B TW466883B TW88117185A TW88117185A TW466883B TW 466883 B TW466883 B TW 466883B TW 88117185 A TW88117185 A TW 88117185A TW 88117185 A TW88117185 A TW 88117185A TW 466883 B TW466883 B TW 466883B
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_本發明係關於一種電_聲通鮮元,例如行動電話及電 話手機㈤來和使用者的耳果保持銜接;亦可以是頭戴式 …尤其在行動電話的領域裡,其發展的方向,已朝向重 量,來越少、而且越來絲便财。這對電子及電聲元件 的成冲者和製造者來說,是個極大的挑戰’縣他們必須 把麥克f和發聲器絲筒轉能器整合在-起。同樣的,這 些轉能器在今日也触—練以往為尺寸來製做。 應用在此處的聽筒電聲轉能器,具有一個薄膜,用來 產生-個形式為聲音、鮮在聲頻麵_聲音詋號^這 種轉能器,典型的都是安裝於電話外殼之内侧—帶,那裡 有-些形式為開口狀的聲音連絡道,其外形係經過仔細調 整以便在和使用者的耳朵相銜接時,能賦予正確的聲音 阻抗及頻轉性。雜會姆,銳其前端發出聲音。為 了讓轉flbUm令人滿意的來動作,所以薄膜後方的氣 室’就必須具有—定的大小,否則薄膜就會被卡到,而無 法振動、。薄膜後方的氣钱是太小,會減低轉能器的靈 敏度,並使其頻率特性產生一f凹陷的不良形狀。因此, 經濟部智慧財產局員工消費合作社印製 截至目前耻,行動電話和電話手機的精減都必須具 備這樣的-健間,而這__大小,聰成了設計者 及製造者的限制。 *行動電話及電話手機,係細—種耳朵模擬器來測試 其聲音品質。這種模擬器是標準化的,例如根據ffiC 318、 IEC 711、或是相關的標準。所有這些標準都是以使用的狀 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公爱) _ 4 - '^ 6 88 3 '^ 6 88 3 經濟部智慧財產局員工消贄合作社印製 A7 I------- B7___ 五、發明說明(2. ) | ;兄為基準’亦即使用者將電話或手機靠在耳果上的情形為 墓準。為了保證其測量具有重製性,所以這些標準都是以 -個儘可能模仿人類縣峨點,來提财練擬器的機 械構造指南、錢音效編,並且陳述了如何來進行測試 —包括如何將電話銜接到耳朵模擬器上,尤其是指相對於 電話機之縣模擬器的精確位置和方向。這表示對任一支 電話來說’以及以標準絲礎來說,我㈣可以在標準化 測試中,定義出電話與耳朵等擬器之間的貼合面。根據標 準,’這個崎會與者料絲合在—起。因此,下^ 中「與使用者耳朵相貼合的面」一詞,和通訊單元與一標 準料雑擬n之貼合面,就被视為是同義詞,因為據前 文所述,這些面均是完全相同的。這一類標準化的耳呆模 擬器’均可以在市面上買到,例如Briiel &咖所製之 4157型、4185型、及4195f!。典型舰合面是—個直徑為 25(_)的圓形區域,所以耳朵模擬器就有一個直徑為 25(_)的環形貼合面。耳条楔擬器之環形贴合面内侧設 有個與人類外耳之空間相等的氣室。這個空間就是耳采 模擬器通醉糕、•·魏_產生膽音·被偵測到的 一個入口。 耳朵模擬器(聲音切的氣室尺寸大小,基本上會影 ’響到通訊單70之聽筒轉傭崎音貞載^料四周的任 何聲音之耗損,均可能讓這個空間增大到一個可觀的量, 而使聲音負載產生-個明顯的變化。聲音負載的變化.,會 造成測量結果與我情希細到的通訊單元之聲音特性不 避用1^國國家標準(CNS)A4規格(2lbT^7i57_The present invention relates to an electric sound source, such as a mobile phone and a telephone handset, to maintain a connection with the ears of the user; it can also be a head-mounted ... especially in the field of mobile phones, the direction of its development, It's moving towards weight, less and more money. This is a great challenge for the producers and manufacturers of electronic and electro-acoustic components. ’They must integrate the microphone f and the sound generator barrel transducer together. Similarly, these transducers are also touched today-made in the past for size. The earphone electro-acoustic transducer used here has a thin film to generate a sound in the form of sound, which is on the audio side _ sound 詋 号 ^ This transducer is typically installed inside the phone casing -Band, there are some open-shaped sound communication channels, the shape of which has been carefully adjusted so that when it is connected with the user's ear, it can give the correct sound impedance and frequency conversion. Miscellaneous, sharp at the front makes a sound. In order for the flbUm to operate satisfactorily, the air chamber 'behind the film must have a fixed size, otherwise the film will get stuck and cannot vibrate. The gas money behind the film is too small, which will reduce the sensitivity of the transducer and cause its frequency characteristics to have a bad shape of f depressions. Therefore, printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Up to now, the reduction of mobile phones and telephone handsets must be equipped with this kind of health, and this size has become a limitation for designers and manufacturers. * Mobile phones and cell phones are thin-ear simulators to test their sound quality. This simulator is standardized, for example according to ffiC 318, IEC 711, or related standards. All of these standards are in accordance with the standard used in this paper. The paper standards are applicable to the Chinese National Standard (CNS) A4 (210 X 297 public love) _ 4-'^ 6 88 3' ^ 6 88 3 Print A7 I ------- B7___ V. Description of the invention (2.) |; Brother as the benchmark ', that is, the situation where the user leans the telephone or mobile phone on the ears is the grave standard. In order to ensure that their measurements are reproducible, these standards are based on a mechanical construction guide for financial training simulators, money sound effects editors, and a description of how to perform the test—including how Connect the phone to the ear simulator, especially the precise location and orientation of the phone simulator with respect to the county. This means that for any phone, and on a standard wire basis, we can define the fit between the phone and the ear simulator in a standardized test. According to the standard, ‘this saki will be together with the material. Therefore, the words "faces that fit the user's ears" in the following paragraphs, and the fitting surface of the communication unit and a standard material n are considered synonymous, because according to the foregoing, these faces are Are exactly the same. These types of standardized ear-dummy simulators' are all commercially available, such as models 4157, 4185, and 4195f! Made by Briiel & The typical mating surface is a circular area with a diameter of 25 (_), so the ear simulator has a ring-shaped mating surface with a diameter of 25 (_). An air chamber equal to the space of a human outer ear is provided on the inner side of the annular fitting surface of the ear strip wedge. This space is an entrance to the ear picking simulator, drunk cake, and Wei Wei. Ear Simulator (The size of the air chamber that the sound cuts will basically affect the earpiece of the communication sheet 70. Any sound loss around the sound can make this space increase to a considerable size. The sound load produces a noticeable change. The change in the sound load will cause the measurement results and the sound characteristics of the communication unit that I really want to avoid. Do not avoid the national standard (CNS) A4 specification (2lbT) ^ 7i57
---------;'' 裝· ! (請先聞讀背面之注意事項再填寫本頁) -ο- 經濟部智慧財產局員Η消費合作社印製 466 88 3 A7 ----------- 五、發明說明(3.) 符。裉據標準’若要正確而且具有重覆性的來測量通訊單 ,的特性時,通訊單元和耳朵模擬器的環獅合面之間, 就必須具備一個緊密贴合的關係。 在使用時,通訊單元與使用者耳朵的緊密貼合程度, :定有一個可觀的變化量,而使聲音有一個或多或少的耗 損量,散佈到四周。這些變化將影響到聽筒轉能器的聲音 負載,而且還可能進一步隨著此一單元對聲音負載阻抗之 靈敏度的不同’专改變通訊單元的聲音特性。這一些改 變,會在通訊單元的聲音品質產生變化時,被使用者察覺 到。而這是我們所不願見到的。 當然,通訊單元必需具備忍受聲音耗損量的能力,亦 即對一個能讓使用者察覺其聲音品質、或是能提供耳朵模 擬器一測量結果的單元來說,這些結果都必須在其最大可 能的範園内’與此單元的貼合程度無關—無論是與使用者 耳朵貼合、或是與耳朵模擬器贴合。 由於行動電話越做越小,所以利用前述的方式,便無 法使一個内氣室非常小的電話,馬上具備一個聲音耗損量 差度一這是因為聲音耗損量差度的要件,是轉能器必須具 有一通向轉能器後方氣室之通道一典型的大小是幾個立方 公分(cm3)。非常大的内氣室是無法接受的,因為此舉將增 大此一單元的尺寸大小’但是若不採用一個大的氣室時, 其聲音的開口,就必須經由一個較小的内氣室通到電話外 部空氣的方式建立起來。轉能器在此時,就必須具備經由 一個很小的内氣室到一個無限大的氣室之通道,讓它能達 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -6----------; '' Outfit! (Please read the precautions on the back before filling out this page) -ο- Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 466 88 3 A7 ----------- V. Description of Invention (3.) symbol.裉 According to the standard ’To measure the characteristics of the communication list correctly and repeatedly, a close fitting relationship must be established between the communication unit and the ring lion face of the ear simulator. In use, the degree of close contact between the communication unit and the user's ear is determined by a considerable amount of change, so that the sound has a more or less loss and spreads around. These changes will affect the sound load of the earpiece transducer, and may further change the sound characteristics of the communication unit specifically according to the sensitivity of this unit to the impedance of the sound load. These changes will be noticed by the user when the sound quality of the communication unit changes. And this is what we don't want to see. Of course, the communication unit must have the ability to endure the amount of sound loss, that is, for a unit that allows the user to perceive its sound quality, or to provide a measurement result of the ear simulator, these results must be at their maximum possible. Inside the Fanyuan 'has nothing to do with the unit's fit-whether it fits with the user's ear or with the ear simulator. Because mobile phones are getting smaller and smaller, using the aforementioned method, a phone with a very small inner air chamber cannot be made, and immediately has a difference in sound loss. This is because the requirement for the difference in sound loss is a transducer. There must be a passage to the air chamber behind the transducer. A typical size is several cubic centimeters (cm3). A very large inner air chamber is unacceptable, as this will increase the size of this unit ', but if a large air chamber is not used, its sound opening must go through a smaller inner air chamber The way to the outside air of the phone is established. At this time, the transducer must have a passage from a small inner air chamber to an infinitely large air chamber so that it can reach this paper size and apply the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ) -6-
466 883 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明(4.) 到一個忍受聲音耗損量的功能。這種小型内氣室的構造, 將會形成一個由這些聲音開口之聲音電感、以及小型内氣 室之聲音電容所構成的共振電路。這種共振電路,會在電 話的頻率響應上,產生一個既深且強烈的凹陷。不幸的^ 這個凹陷係落在有用的聲音頻率中間,而且是由開口的$ 何形狀及内氣室所決定的。 EP 364 93S敛述了 一種具有聽筒轉能器的電話手機, 其中’·其薄膜前端係經由手機上的聲音開口,來和使用者 耳朵作聲音的連絡,而且還提到薄膜前端與手機的内艙, 在音效上是連結在一起的。 DE 2 815 051及US 4 239 945敘述了許多不同的頭戴式 耳機,其中,在其薄膜前端及後端之間,設有一個聲音^ 絡道。上述的連絡道包括了使用者外耳的空間在内。曰 wo 98/期4敘述了—種行動電話,其中,在與使用 者耳采銜接的電話表面内侧,有—個通到薄膜前端的聲立 連絡道’以及-個制舰後端崎音連絡道n y 就讓電話具備了忍受聲音耗損量的能力。在電性上,聽 :轉能器係設置在一個偏離與使用者耳朵相銜接之處。,'” 冑面所有提到過的既有構造,都具有 患 室,設置在外殼裡的薄膜後方。 规 林發日通訊單㈣,由_至精相,一Μ ’其中兩個連絡遒係從薄膜前端開二 經由聲音連絡道來連接的。這些連絡道包括了 (請先閱頡背面之注$項再填寫本頁) ! I 訂,— I b— >1 a ο.466 883 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (4.) To a function that can endure sound consumption. The structure of this small inner air chamber will form a resonance circuit composed of the acoustic inductance of these sound openings and the sound capacitance of the small inner air chamber. This resonance circuit will produce a deep and strong depression in the frequency response of the phone. Unfortunately, this depression is in the middle of the useful sound frequency and is determined by the shape of the opening and the inner air chamber. EP 364 93S describes a telephone handset with a handset transducer, in which the film front end is connected to the user's ear through the sound opening on the mobile phone, and it also mentions that the film front end and the inner part of the mobile phone The cabins are linked together in sound effects. DE 2 815 051 and US 4 239 945 describe many different headsets, in which a sound channel is provided between the front and rear ends of the film. The aforementioned communication channel includes the space of the user's external ear. Wo 98 / Issue 4 describes a mobile phone in which, on the inside of the phone surface connected to the user's ear, there is an acoustical communication channel leading to the front end of the film 'and a ship's back-end sakiyin communication path. ny gives the phone the ability to endure the amount of sound loss. Electrically, the listening: transducer is placed at a position away from the connection with the user's ear. "" All existing structures mentioned on the noodle surface have the affected room, which is located behind the membrane in the shell. Guilinfari Communication Newsletter㈣, from _ to the fine phase, one of the two connected systems It is connected from the front of the film through sound communication channels. These communication channels include (please read the note on the back of the 颉 before filling out this page)! I subscribe, — I b— > 1 a ο.
本紙張尺度適用中國國豕標準(CNS)A4規格(210 >: 297公楚) -7- /! 〇 6 8 8 3 經濟部智慧財產局貝工消費合作社印製 B7 五、發明說明(5. ) 朵銜接之面之内侧區域一也就是指使用者的耳朵,以及包 括這個貼合面外侧的區域一也就是指四周的空氣。這四個 聲音連絡道是由音效平衡橋裡的四個分支、以及作用為發 電機的轉能器所構成的。 在轉能器之薄膜前端、以及通訊單元外部的空氣之 間,加入第四個聲音連絡道之後,即可確定利用一個小型 .的内氣室,來建造一個具有忍受聲音耗損量的單元了,因 „ 為聲音共振電路的效應,大部分都可以被抵銷掉。其原理 是:與使用者朵耳貼合時所產生的耗損,將會經.由薄膜前 端的連絡道,而在頻率響應中產生一個凹陷,但是這個效 應卻會經由薄膜後端的連絡道,於相同頻率的頻率響應下 產生一個相對應的峰值。這個補償效應,大部分均與聲音 耗才貝量的多寡無關。 一個聲音平衡橋’就是這樣被建立起來的。頻率響應 曲線中的凹陷,會隨著電話之不同而有相異,這是因為通 到電話外部空氣的連絡道具有公差的緣故^但是聲音平衡 橋的效應,卻是因為其聲音耗損量的改變,會在橋的兩個 分支上產生變化所致◦此處,因為包含橋上由聲音耗損所 引起之兩分支的迴路,是在同一個聲音共振迴路上,所以 它們的頻率和振幅改變都會互相抵銷,而使聲音橋仍然處 在一個平衡的狀態下。 . 這種薄膜之前端及後端、與使用者耳朵及周圍空氣均 以聲音互通的構造,特別具有其優點,因為它可以藉此來 將電話内部轉能器之薄膜後方的内氣室,減少到一個相較 (諝先閱讀背面之注f項再填窝本頁) --------^--------This paper size is in accordance with China National Standard (CNS) A4 (210 >: 297 Gongchu) -7- /! 〇6 8 8 3 Printed by the Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs B7 V. Invention Description (5 .) The inner area of the flower-connecting surface 1 refers to the ear of the user, and the area including the outer surface of the fitting surface 1 refers to the surrounding air. The four sound links are composed of four branches in the sound balance bridge and a transducer that acts as a generator. After adding a fourth sound communication channel between the front end of the membrane of the transducer and the air outside the communication unit, it can be determined to use a small inner air chamber to build a unit that can withstand sound loss. Because „is the effect of the sound resonance circuit, most of it can be offset. The principle is: the loss generated when the ear is attached to the user will pass through the contact of the front end of the film, and the frequency response There is a depression in the medium, but this effect will generate a corresponding peak at the same frequency response through the contact channel at the back of the film. Most of this compensation effect has nothing to do with how much sound is consumed. A sound This is how the “balance bridge” is established. The depressions in the frequency response curve will vary from phone to phone. This is because the communication path to the outside air of the phone has tolerances ^ but the effect of the sound balance bridge However, it is because the change of the sound loss will cause changes on the two branches of the bridge. Here, because the sound from the bridge is included. The two branches of the circuit caused by the loss are on the same acoustic resonance circuit, so their frequency and amplitude changes will cancel each other out, so that the sound bridge is still in a balanced state. The structure of the rear end, the user's ear, and the surrounding air are all connected with sound, which has its advantages, because it can use this to reduce the inner air chamber behind the film of the internal transducer of the phone to a comparison (first Read the note f on the back and fill in this page) -------- ^ --------
經濟部智慧財產局負工消費合作杜印製 --------B7___ 五、發明說明(6. ) 於電話之實際大小無足輕重的尺寸。這個小氣室將會無< 避免地產生一個相當強烈的共振,也就是說,它將會在一 個相當窄的頻率範助,產生—個相當大的振幅變化,俱 據細文所述’在頻率及振幅上的變化都會互相被抵销。 在使用上,通訊單元與使用者耳朵貼合之緊密程度, 一定是會有改變的。對於每一個使用者而言,這種改變時 時刻刻都在發生,而且,從一個使用者到另一使用者之 間,也有相當可觀的改變。根據本發明,這些改變只會在 -個小範_影響錢树性而已,.0為雜雜端和後 端,均和這種緊密度的改變程度杻連,而它們則是包含在 聲音橋的兩個分支當中。 因此,利用本發明,即可建構一個具有忍受聲音耗損 量、而且只含一相當小的内氣室之通訊單元。 、行動電話和電話手機’絲都含有—個由兩片殼板所 構成、沿著其邊緣組合起來的外殼。這種組合之鬆緊程度 多少都有不同’但若要讓拉全的㈣,無論如何都是相 當困難而且昂貴的。㈣本發明,轉能器薄膜後端及四周 空氣之間的聲音連絡道,就可以針對這種組合提出貫舉, 甚至可以在其組合的殼板其中-個邊緣上,做出一個&口 狀的不連續。如果在組合的殼板間,於此一不連績點之 夕卜產生了任何的聲音耗這個聲音耗損就會構成聲音 連絡道的-部分,而這-部分聲音耗損的改變,大部分都 可以經由本發明來被抵銷掉β 本紙張尺度適用中國國家楳準(CNS)A4規格(210 X 297公釐)一〜-- -9- --I-----— IX -裝--- (笼描餚背面之注意事項與填寫本黃) 訂· 下又將參照圖示,來說明本發明較佳的一種组態,其 中: 圖一係為本發明之通訊單元的-個剖面圖, 圖一係為圖一之音效結構的簡化等效圖示, 圖二係以示意圖,來表示一個相當大的聽筒轉能器在本 發明之通訊單元裡的位置,以及 圖四係以示意圖,來表示一個相當小的聽筒轉能器在本 發明之通訊單元裡的位置。 圖—所示係為一行動·電話的截面.,其具備一個由兩片 敗板所構成的外殼--個前殼板10,以及一個後殼板11。 外破裡面裝載了一個印刷電路板12,電路板上已經有裝設 了一些以斜線來表示的電子元件。有一個以示意圖來表示 的聽筒轉能器20,已被安裝在前殼板1〇的内侧一例如利用 一個讓聲音能被緊密封住的雙面膠帶13來安裝。這個轉能 器具有一個以示意圖來表示的薄膜21,其前端22和後端23 已經有安裝線圈在上面《薄膜係於—磁場中,以一種已知 的方式來裝載線圈,以便使薄膜能將電的訊號以一種已知 的方式來轉變成聲音訊號。薄膜的前端22,.其内側係面向 前殼板10,而薄膜的後端則是面向電話的内部,圖一展示 了一個位在轉能器20四周及前殼板10後方的空間c。 在圖一中’耳朵模擬器30係以虛線來表示,而此處的 電話,則是以示意圖的方式,來表示一個相對於耳果模擬 器的標準化之測試位置。此時的電話,係經由一個贴合面 33來和耳朵模擬器貼合在一起的。這個面界定出了一個在 經濟部智慧財產局員工消費合作社印" / ' 466 88 3 A7 厂__B7 ___ 五、發明說明(8. ) 貼合面33内侧的區域31,以及在貼合面33外侧的區域32。 因此,這兩個區域是彼此分開的。 第一聲音連絡道41 ’係從轉能器的薄膜前端22,通到 貼合面33内侧的區域31裡。這個第一聲音連絡道41,是由 薄膜21至使用者耳朵的主要聲音連絡道。在薄膜前端22及 前殼板10之間’有一個被設計成儘可能小的小空間,以便 使這個空間和其聲音阻抗,能一併提供一個共振頻率出 來。這個頻率係落在電話的作用頻率之外’所以它僅提供 了一條短的傳輸線至使用者的耳朵而已’並不會影響到聲 音的品質。 第二聲音連絡道42,係從轉能器的薄膜後端23經過空 間C之後,再通到貼合面33内侧的區域31裡《因此,這第 一及第二聲音連絡道41和42,便各自經由區域31,分別來 和薄膜的前端22及後端23相連。這個區域31便代表了耳朵 模擬器的入口’以及使用者的耳柴入口 β 電話具有一個第三聲音連絡道43,.由轉能器的薄膜後 端23穿過空間C之後,再通到貼合面33外侧的區域u。在 所示的這種型式中,這個連絡導係伸展到一個介於電話之 兩片殼板前殼板10和後殼板11之間的一個開口,但它也可 以做成一個只在其中一個殼板上的獨立開口。 第四聲音連絡道44 ’係將轉能器的薄膜前端22和贴合 面33外侧的區域32連在一起。如同第—連絡道41那般,這 第四連絡道44的設計,也是要讓它能和一個位在薄膜前端 本紙張尺度適用中關家標準(CNS)A4規格(210 κ 297公釐) -11 - (請先閱讀背面之注意事項再填窝本頁w -襄!--—一訂----11- 466 88 經濟部智慧財產局員工消費合作社印製 A7 發明說明(9.) 22及前殼板1G間的小空間,共·生—贿在電話之作用 頻率範圍以外的共振頻率。 ,一所示的轉能器2〇,是一個相當小的單元,位在電 話=殼其中-側-亦即不對稱設計。其第—及第二連絡道 則疋共同被設置在電話的巾央。對於大型的聽筒轉能器而 言’雖然此處所示的轉也很實用,獨這種結構卻特別 適用於小型的轉能器,因為隨著轉能器在外殼植的位置之 不同’我們減獲得很大的自由度,而且如騎示一般, 這*個轉能器也可以被安排在一個偏離貼合面33的位置,甚 至可以被安排在一個相對於外殼呈傾斜的位置上。 圖二所示的3是前面圖一中所述的音效結構之等效電 路圖。此處所示的轉能器2〇,變成了 一個具有内聲音阻抗 RG的發電機。此處所示的阻技是以一個純智阻來表示的。 此處所示的四個聲音連絡道41、42、43、44,每一個都是 分別由電感LI、L2、L3、L4所構成的,而且分別與電阻 Rl、R2、R3、R4串接在一起。這些電感係表示每一個聲 音連絡道中的空氣質量,而電阻則表示連絡道中的摩檫損 失。在贴合面33内邱的區域31中,使用者的耳朵具有一個 針對電話而言的負載阻抗。在等效電路中,這個阻抗是以 電阻RL來表示的。在這個等效的電路圖中,位在前殼板 後方、轉能器20周圍的空間C,則是以電容(^來表示。 從圖二可以看出,代表這四個聲音連絡道的阻抗,是 由具有四個分支的輕合電橋所構成的,並以轉能器2〇來做 為發電機。這個空間c,再加上其聲音連絡道42和43_尤 ^紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐〉 -12- (請先閱讀背面之注$項再填寫本頁)Du printed by the Consumer and Intellectual Property Bureau of the Ministry of Economic Affairs -------- B7___ V. Description of the invention (6.) The actual size of the phone is insignificant. This small air cell will inevitably produce a rather strong resonance, that is, it will generate at a relatively narrow frequency range, a considerable amplitude change, as described in the detailed text. Changes in frequency and amplitude are offset by each other. In use, the closeness of the communication unit to the user's ear must change. For every user, this change is happening all the time, and there is a considerable change from one user to another. According to the present invention, these changes will only affect the money tree in a small range. .0 is the miscellaneous end and the back end, which are all connected to the degree of change in the tightness, and they are included in the sound bridge. Of the two branches. Therefore, with the present invention, it is possible to construct a communication unit that can tolerate sound loss and only contains a relatively small inner air chamber. , Mobile phones and telephone handsets' wires all contain a shell composed of two shell plates and assembled along its edges. The tightness of this combination varies to some degree ’, but it ’s quite difficult and expensive to get it all together. ㈣In the present invention, the sound communication channel between the rear end of the transducer film and the surrounding air can propose a consistent implementation for this combination, and even make an & mouth on one of the edges of the combined shell plate. Discontinuities. If there is any sound loss between the combined shells and plates at this point, this sound loss will constitute a part of the sound connection, and most of the changes in this sound loss can be done. Can be offset by the present invention β This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 1 ~--9- --I ------- IX -pack- -(Precautions on the back of the cage drawing and filling in this book) Order and description will be made with reference to the diagram to illustrate a preferred configuration of the present invention, where: Figure 1 is a cross-sectional view of the communication unit of the present invention Figure 1 is a simplified equivalent diagram of the sound effect structure of Figure 1. Figure 2 is a schematic diagram showing the position of a relatively large earpiece transducer in the communication unit of the present invention, and Figure 4 is a schematic diagram. To indicate the position of a relatively small handset transducer in the communication unit of the present invention. Figure—shown is a cross-section of a mobile phone. It is provided with a housing made up of two failure plates, a front shell plate 10, and a rear shell plate 11. The breakout contains a printed circuit board 12, which already has some electronic components indicated by diagonal lines. An earpiece transducer 20 shown in a schematic diagram has been mounted on the inside of the front case plate 10-for example, using a double-sided tape 13 that allows sound to be tightly sealed. This transducer has a thin film 21 shown in a schematic diagram, the front end 22 and the rear end 23 of which already have coils mounted thereon. The thin film is in a magnetic field, and the coil is loaded in a known manner so that the thin film can transfer Electrical signals are converted into sound signals in a known manner. The front end 22 of the film, its inner side faces the front shell plate 10, and the rear end of the membrane faces the inside of the phone. Figure 1 shows a space c around the transducer 20 and behind the front shell plate 10. In FIG. 1, the 'ear simulator 30 is shown by a dashed line, and the phone here is a schematic diagram showing a standardized test position relative to the ear simulator. The telephone at this time is attached to the ear simulator via a fitting surface 33. This area defines a seal printed on the employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs / / 466 88 3 A7 factory __B7 ___ V. Description of the invention (8.) The area 31 inside the bonding surface 33 and the bonding surface 33 33 outer area 32. Therefore, these two areas are separated from each other. The first sound communication path 41 'is passed from the film front end 22 of the transducer to the area 31 inside the bonding surface 33. This first sound communication path 41 is the main sound communication path from the film 21 to the user's ear. Between the film front end 22 and the front shell plate 10, there is a small space designed to be as small as possible, so that this space and its acoustic impedance can provide a resonance frequency together. This frequency falls outside the operating frequency of the phone 'so it only provides a short transmission line to the user's ear' and it will not affect the sound quality. The second sound communication path 42 passes through the space C from the rear end 23 of the membrane of the transducer, and then passes into the area 31 inside the bonding surface 33. Therefore, the first and second sound communication paths 41 and 42 They are respectively connected to the front end 22 and the rear end 23 of the film through the area 31. This area 31 represents the entrance of the ear simulator 'and the earphone entrance of the user. The β phone has a third sound communication channel 43. The rear end 23 of the membrane of the transducer passes through the space C and then passes to the sticker. The area u outside the joint surface 33. In the type shown, the contact guide extends to an opening between the two shell plates of the phone, the front shell plate 10 and the rear shell plate 11, but it can also be made into one of the shells. Independent openings on the board. The fourth sound communication path 44 'connects the film front end 22 of the transducer and the area 32 outside the bonding surface 33 together. Like the first-linkage path 41, the fourth-linkage path 44 is designed so that it can fit the Zhongguanjia Standard (CNS) A4 specification (210 κ 297 mm) at the front end of the film. 11-(Please read the precautions on the back before filling in this page w -Xiang! --- One order ---- 11- 466 88 A7 Invention Note (9.) printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 22 And the small space between the front shell plate 1G, the resonance frequency of the symbiotic-bribery outside the frequency range of the phone. The transducer 20 shown in Figure 1 is a relatively small unit located in the phone = shell. -Side-that is asymmetric design. Its first- and second-contact channels are collectively installed on the phone's towel center. For large handset transducers' Although the rotation shown here is also very practical, it is unique This structure is particularly suitable for small-sized transducers, because with the different positions of the transducers in the casing, we get a lot of freedom, and as the riding instructions, this * transducer can also be used Arranged at a position offset from the bonding surface 33, and can even be arranged relative to the outside It is in an inclined position. 3 shown in Fig. 2 is an equivalent circuit diagram of the sound effect structure described in Fig. 1. The transducer 20 shown here has become a generator with an internal acoustic impedance RG. The resistance technique shown here is represented by a purely intelligent resistance. The four sound communication channels 41, 42, 43, 44 shown here, each of which are respectively controlled by the inductors LI, L2, L3, and L4. It is constructed and connected in series with resistors R1, R2, R3, and R4. These inductances represent the air quality in each sound communication channel, and the resistance represents the friction loss in the communication channel. In the bonding surface 33 内 丘In area 31, the user's ear has a load impedance for the telephone. In an equivalent circuit, this impedance is represented by the resistance RL. In this equivalent circuit diagram, it is located behind the front shell plate, The space C around the transducer 20 is represented by capacitance (^). As can be seen from Figure 2, the impedance representing these four sound communication channels is constituted by a light-on bridge with four branches. And use the energy converter 20 as a generator. This space c , Plus its sound communication channels 42 and 43_ especially ^ Paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm> -12- (Please read the note on the back before filling this page)
— |11'薩 I I 訂·-----FilA 4 6 6 883— | 11'Sa I I Order · ----- FilA 4 6 6 883
五、發明說明(10-) 經濟部智慧財產局員Η消費合作社印製 其是指它們的電感L2和L3而言,則是構成兩個共振電路。 其中,每一個共振電路都是由薄膜的後端23來饋電的,而 且在等效圖中,均是分別經由其末端來和聲音負載虹相連 的。很明顯的,若適當改變其聲音連絡道42及43的尺寸大 小,讓它們實質上具有相同的共振頻率及共振頻寬時,則 聲音負載RL上所展現的這些共振效應,就會彼此抵銷。結 果’其聲音輸出訊號本質上便與電話裡的空間C無關。以 行動電話為例,這就表示它不再需要有一個内部的音效作 用‘空間,用來容忍聲音耗損量的情形,讓遠種通訊單元甚 至可以製做得:更加細小。 圖三係以示意圖來表示一行動電話之前殼板10的内 部。用來和使用者耳朵相貼合面33,係以内部直徑25公釐 (mm)繪於此處。外部直徑為2〇公釐(胃)的聽筒轉能器 20a ’係以偏離貼合面33的方式來設置。所示的第一及第 一聲音連絡道41及42,係擺在其站合面33中心附近,但其 第四聲音連絡道44,則是被設置在貼合面之外,但又位在 其轉能器的周邊元件之内。 同学的,圖四也是以示意圖來表示一行動電話之前殼 板10内部,其具有一直徑為25公釐(mm)之同一貼合面33 ’ 與圖三情形相仿。此處的聽筒轉能器20b是一個較小的、 直徑為15公董(mm)的型式’所以它和圖一相符。和圖三的 情形相同,所示的第一及第二聲音連絡道41和42,均分別 位在贴合面33的中心附近。正如同第四聲音連絡道44的情 形’它在這裡的情形也一樣是朝向贴合面外部,不過卻是 本紙張尺度適用中國國家標準(CNS)A4規格(210 >= 297公釐〉 -13- -ΙΪΙΙΙΙ— — — · I I i t (請先閲讀背面之注意事項再填窝本頁) i 丨f 訂·! 466883 B7 五、發明說明(11.) 位在轉能器的周邊元件外部。如同圖一的情形,在前殼板 10連接到開口的連絡道,都是在前殼板10内做成一個凹陷 或是低窒的形狀,而這種凹陷係延伸在雙面黏貼膠帶13的 下方。 (請先閱讀背面之注意事項再填寫本頁) J a 0Γ 經濟部智慧財產局員工消費合作社印製 ‘紙張尺度適用中國國家標準(CNS)A4規格(210 X 29^^釐 4 6 6 bb 3 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(I2.)元件符號說明 C 氣室 RL聲音負載阻抗 RG轉能器聲音阻抗 R1第一聲音連絡道之聲音元件電阻 R2 第二聲音連絡道之聲音元件電阻 R3第三聲音連絡道之聲音元件電阻 R4第四聲音連絡道之聲音元件電阻 L1第一聲音連絡道之聲音元件電感 L2第二聲音連絡道之聲音元件電感 L3第三聲音連絡遒之聲音元件電感 L4第四聲音連絡遒之聲音元件電感 10前殼板 11後殼板 12 印刷電路板 13膠帶 20聽筒轉能器 20a聽筒轉能器 20b聽筒轉能器 21轉能器薄膜 22轉能器薄膜前端 23轉能器薄膜後端 30耳朵模擬器 31 耳朵模擬器之貼合面内侧區域 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -14-1 - (諳先閱缋背面之主意事項再填窝本頁) 裝 ------訂 it--—.— 錄V. Description of the invention (10-) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and the Consumer Cooperative, which means that their inductances L2 and L3 constitute two resonant circuits. Among them, each resonance circuit is fed by the rear end 23 of the film, and in the equivalent diagram, it is connected to the sound load via its end respectively. Obviously, if the size of the sound communication channels 42 and 43 is appropriately changed so that they have substantially the same resonance frequency and resonance bandwidth, these resonance effects displayed on the sound load RL will cancel each other out. . As a result, its sound output signal is essentially independent of the space C in the phone. Taking the mobile phone as an example, this means that it no longer needs to have an internal sound effect space, to tolerate the situation of sound loss, so that remote communication units can be made even smaller: even smaller. Fig. 3 is a schematic view showing the inside of the casing 10 before a mobile phone. The mating surface 33 for the user's ear is drawn here with an inner diameter of 25 millimeters (mm). The earpiece transducer 20a 'having an outer diameter of 20 mm (stomach) is provided so as to be offset from the fitting surface 33. The first and first sound communication channels 41 and 42 shown are placed near the center of the station surface 33, but the fourth sound communication channel 44 is set outside the bonding surface, but is located at Within the transducer's peripheral elements. For classmates, Figure 4 also shows the interior of the shell 10 before a mobile phone with a schematic diagram, which has a same bonding surface 33 ′ with a diameter of 25 mm (mm), which is similar to the situation in Figure 3. The earpiece transducer 20b here is a smaller type with a diameter of 15 mm (mm), so it conforms to Figure 1. As in the case of FIG. 3, the first and second sound communication channels 41 and 42 shown are located near the center of the bonding surface 33, respectively. As is the case with the fourth sound communication channel 44, it is also facing outward from the bonding surface here, but it is a Chinese paper standard (CNS) A4 standard (210 > = 297 mm>). 13--ΙΪΙΙΙΙΙ — — · II it (please read the precautions on the back before filling in this page) i 丨 f Order ·! 466883 B7 V. Description of the invention (11.) It is located outside the peripheral components of the transducer. As in the case of FIG. 1, the communication channels connecting the front shell plate 10 to the opening are made into a recessed or low-smoke shape in the front shell plate 10, and the recesses extend on the double-sided adhesive tape 13 (Please read the notes on the back before filling in this page) J a 0Γ Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs's Consumer Cooperatives' paper size applies to Chinese National Standard (CNS) A4 (210 X 29 ^^ ali 4 6 6 bb 3 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the components of the invention (I2.) Symbol description C Air chamber RL Sound load impedance RG Transducer sound impedance R1 Sound element resistance R2 of the first sound link Two Voices Contact the Voice of the Road Element resistance R3 Sound element resistance of the third sound contact channel R4 Sound element resistance of the fourth sound contact channel L1 Sound element inductance of the first sound contact channel L2 Sound element inductance of the second sound contact channel L3 Third sound contact sound Element Inductance L4 Fourth Sound Contact Sound Element Inductor 10 Front Shell Plate 11 Rear Shell Plate 12 Printed Circuit Board 13 Tape 20 Earpiece Transducer 20a Earpiece Transducer 20b Earpiece Transducer 21 Transducer Film 22 Transducer Membrane front end 23 Transducer Membrane back end 30 Ear simulator 31 Inside area of the fitting surface of the ear simulator The paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -14-1-(谙 先Read the idea on the back of the book and fill in this page.) -------- Order it ----.— Record
(請先閱讀背面之注意事項再填寫本買) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -14-2 -(Please read the precautions on the back before filling in this purchase) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210X297 mm) -14-2-
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW88117185A TW466883B (en) | 1999-10-05 | 1999-10-05 | An electroacoustic communications unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW88117185A TW466883B (en) | 1999-10-05 | 1999-10-05 | An electroacoustic communications unit |
Publications (1)
Publication Number | Publication Date |
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TW466883B true TW466883B (en) | 2001-12-01 |
Family
ID=21642506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW88117185A TW466883B (en) | 1999-10-05 | 1999-10-05 | An electroacoustic communications unit |
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TW (1) | TW466883B (en) |
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1999
- 1999-10-05 TW TW88117185A patent/TW466883B/en not_active IP Right Cessation
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