TW510139B - An electroacoustic transducer and a coil and a magnet circuit therefor - Google Patents
An electroacoustic transducer and a coil and a magnet circuit therefor Download PDFInfo
- Publication number
- TW510139B TW510139B TW090104153A TW90104153A TW510139B TW 510139 B TW510139 B TW 510139B TW 090104153 A TW090104153 A TW 090104153A TW 90104153 A TW90104153 A TW 90104153A TW 510139 B TW510139 B TW 510139B
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- coil
- interval
- wire
- magnet
- magnet circuit
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
- H01F2041/0711—Winding saddle or deflection coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/066—Electromagnets with movable winding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Coils Or Transformers For Communication (AREA)
Description
X --—--.1iigi=-== -----1- ) 經濟部智慧財產局員Η消費合作社印製 五、發明說明( 、本發明側於-種電聲轉換器,且特別是關於—種 式 < 轉換器,其巾贼裝有麵場中可義之線圈,此線 乃由導電電線所組成。 ' 電聲轉換器,及特別是電動式之轉換器係廣泛地應用在 小型電子通訊設射,例如有線餘及行動電話。傳統電動 式麥克風及喇队轉換器,例如用在行動電話之轉換器,基本 上是旋轉對稱並且具有-_碟_„環狀之永久磁鐵,此 水久磁鐵乃是於磁鐵之軸心方向被磁化。由磁化之軟鐵或其 他適合之物質所喊之磁鐵迴路區隔出—環狀間隔,此環狀 間隔具有由磁鐵所產生之放射狀磁場。隔板裝設有導電電線 所組成之環形線圈,其線圈之位置乃位於此間隔之中。 如果構成此間隔之内部及外部之元件無法持完全地維 持同軸狀態,間隔將無法維持有同一平均寬度,導致磁場沿 著間隔有一彎曲之分佈。在如此彎曲之磁場中,帶有電流之 線圈於聲音頻率將不會進行線性移動,而易於發生傾斜移動 狀態’如此一來將引發線性及非線性之失真。 在這種轉換器中,在環形間隔内之磁場係放射導向,因 此,磁場在其内部區域之強度是大過於其外部區域。沒有完 全軸化之線圈將會造成如上所述之失真狀況。 本發明可以避免磁場有這種不一致性之狀態,不論這轉 換器是麥克風還是喇队轉換器,在本發明的設計中將可達到 轉換器之輸出淨化之目的。磁場會比一般習知之轉換器更 強,、如此一來轉換器可以製成較小尺寸,但仍保有相同之感 應度’以便供手機之製造者使用。相較於傳統轉換器,此轉 (請先閱讀背面之注意事項再填寫本頁) -·裝 --線· 本紙張尺度適财關家^ii) 510139 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明(2· 換器由於其磁鐵迴路之設計,將有一較低之散逸磁場。 以下將藉著圖式將本發明作詳細之說明,其中: 圖-顯林發明難倾之立翻,紐自4瞰之 部分, 圖一顯示相同重要部分之仰視立體圖, 圖二圖一及圖二之轉換器之磁鐵迴路,及 圖四顯示圖-及圖二中,在中繼生產階段中轉換器之線 設計。 圖一及圖二顯示一電動式之轉換器1〇及其主要组成單 元·· ^兹鐵迴路20、一線圈30及一隔板4〇。圖三亦示出磁 鐵迴路20。 在圖三可清楚看出,磁鐵迴路20具有二長連接腳21 及一短連接腳22,彼此在兩端相接,並形成一四方形之環。 一中間連接腳23連接二短連接腳22,將内部的四方環狀分 成兩個四方形開口 24。磁鐵迴路之二長連接腳21、二短^ 接腳22及中間連接腳23是由磁化之軟性物質所製成,^中 此磁化軟性物質之磁飽和值.最好能夠非常高。此二長連接腳 21及中間連接腳23朝向開口 24之表平面,通常是平坦之 表平面,其間保有-㈣隔。二長連接腳21各別面對著開 口 24之平面25有-磁鐵26,其係接在平面25 ±。這兩個 磁鐵26分別包含有緊貼著接到長連接腳之磁極面及其處於 相反位置之磁極面29,此磁極面29乃維持空著,其面對著 開口,也面對著中間連接腳23之相對表平面27,同時,磁 鐵間隔28是介於空磁極面29及中間連接腳之表平面27之 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公髮) -6- (請先閱讀背面之注意事項再填寫本頁) --裝 » --線· 510139 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明(3· 間 磁鐵26分別在相應之間隔28中產生磁場,並且經由中 間連接腳23、短連接腳22及長連接腳21區隔出磁回返路 板。依此’藉由磁鐵之磁極面所區隔出之磁鐵間隔28,磁 回返路徑將會完整地環繞住磁鐵間隔28。因而有一非常平 坦及緊密結實之磁鐵系統結構,使其磁場集中在間隔28, 並j有一低散逸磁場,這將促成其有高感應度及極低之磁防 護需求。圖三之磁鐵系統20,在圖一及圖二中是利用例如 模組製造或裝人—工作「箱」之方法,將其置人娜模套 5〇中。此塑膠模套之底部可關閉開口 24或是開啟開口。 不圖四顯示轉換器1〇使用之線圈30。此線圈30乃用導 私之爲泉纏繞著’例如銅線,並包含乡圈彼此相互隔絕導電 足相’亦即在其表面塗覆有漆質表層。此線圈之線圈軸乃 垂直於圖式。依照已習知之方式,可將導線和線圈在纏繞之 同時進行加熱,在此同時漆質會膠著並將線隨此黏結,因 此可以機械絲歡住、_。、_ 3G之料杨頭線端31 用以連接線圈到電子電路上。" 線圈30纏繞在四方形切面之心轴,因此,線圈因而形 中所示之四方形之開口幻及―具_角之四方形外 。在圖四中,線圈相對而言平滑並且其厚度比其内、 =半徑寬度之間之轉树,傳統上似半徑寬度之 _ 0/。’或者«之後_上之運作狀況來狄其寬度。 量之導電電線並完成—定形狀及厚度之 ,,泉圈將從心軸上移除。當線圈還維持在餘溫狀態時,由 私紙張尺度適财(CNS)A4 (210 X 297^1 ) (請先閱讀背面之注意事項再填寫本頁) --裝 *. A7 五、發明說明(4 · 於運在某一較高之溫度,漆質仍維持在較軟之狀態。將用圖 中未出之彎折工具,沿著在線圈平面上之二平行彎曲軸線 33來彎折線圈。線圈因而形成在圖一及圖二中所示之形 狀’相較於二短區段35,線圈二長區段34已被彎折9〇度, 而二長區段34彼此也因此形成平行狀態。在彎折線圈之 後,可以加以冷卻來使漆質不再有彈性,線圈因而穩定下來。 此彎曲及穩定後之線圈乃固定到隔板4〇。此隔板是由 -薄而有彈性之片層所製成。其較低那—面,亦即在圖二所 示之那一面,隔板40有導電之部分41,線圈之二短區段% 是固足到隔板較低之這-面,例如可用一黏著劑來固定,兩 電線之線端31則分別制其中一導電之部分Μ,例如可藉 由固化或_之方絲連接。此_ 4G之靴是四方狀, 其舌狀結構42倾有導電之部㈣之隔板長邊,延伸到此 舌狀結構,如此-來,可讓舌狀結構之導電之部分41分別 導電連接到線圈之線端31。 因此’包含有線圈30之隔板4〇,藉著線圈之二長區段 34分別接到間隔28中,而安裝於磁鐵系統財。因此二 長區段34也被視為線圈間隔部分。線圈之二短區段%安置 在中間連接區段23之上,並連接此線圈之二線圈間隔部 分。此隔板沿著其長邊緣固定到磁鐵系統上。此隔板寬度乃 相應模套邊緣之_邊。如果f要的話,可藉由黏著劑 將隔板長邊緣和_紐目定在,。祕之贿最好是空 著不接,並備有-狹_口提供隔板兩邊 道。此缝口可調換到所期望之聲音特性並影響轉換器 --------裝--- (請先閱讀背面之注意事項再填寫本頁) 訂: *線· 經濟部智慧財產局員工消費合作社印製 510139 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明(5·) 之聲音效果,特別是在低頻時。如果需要的話,隔板之短邊 緣可以固定到磁鐵系統上,或以可使邊緣移動之物質封閉此 縫口。在較佳實體中,隔板形狀是四方形,但也可採用其他 形狀。 在圖一中可觀察到,磁鐵迴路是由許多層所組成之薄 層,在最上層中,中間連接腳23被省略,以使最上層展現 出一含有二長連接腳及二短連接腳之四方環狀結構。其中省 略之中間連接腳部分乃是挪作說明線圈連接部分35之用。 此磁鐵迴路也可以製成一固體區塊,或製成一其中插入有中 間連接腳之外環結構。 圖一及圖二也說明,塑膠模套50有兩個凹槽或通道 52,其延伸至模套5〇底部。此通道52寬度和舌狀結構犯 寬度相當。此舌狀結構42彎折並分別伸入通道52,其舌狀 結構末端伸入於模套50底部之凹槽部分。舌狀結構之末端 會被彎折180度,以讓導電之部分末端暴露,或一穿板之孔 會通過舌狀結構,建立起電導連結。舌狀結構中,導電之部 分末端部分會作為轉換器導電蟪之用。 轉換器最好裝有一上蓋,並且讓其開口位於隔板前方。 此轉換器可以在電子通訊設備中例如行動電話,作為麥克風 或喇队轉換器來使用。 此四方形隔板沿著彼此相反之兩邊緣固定著,最好是沿 著長邊緣,而另外兩個邊緣則維持空著。依此,可以簡單之 移動隔板,相較於那些隔板沿著整個邊緣固定之轉換器,本 發明之轉換器,即使在隔板厚度較厚之狀況下,也可以有較 尺度ί用中國國家標準(CNS)A4規格⑽x 297公f ) 一 ------ -9- (請先閱讀背面之注意事項再填寫本頁) -裝 ΊδτI - --線· 510139 A7 _______JB7__ 五、發明說明(6·) 1¾之感應度。 此轉換器同樣的適用為喇P八轉換器或麥克風。當作為喇 队轉換器使用時,音頻之電子訊號會輸入到末端,並在其線 圈電線之線圈間隔部分所產生之電流,會與間隔中之磁場發 生交互反應,並導致線圈及隔板移動,因而產生音頻之聲 音。相同的,作為麥克風使用時,作用在隔板上之音頻聲音 導致線圈移動,當線圈電線之線圈間隔部分在磁場中移動 時,會產生電子訊號,並輸出至轉換器末端。 在較佳實體中,磁鐵迴路最好是四方形,其中有兩個可 以置放線圈之線圈間隔部分間隔,該間隔是在彼此相對之表 平面間。在另一設計結構中,磁鐵迴路會有四個間隔,排列 如正方形之四個邊,線圈也相應有四個線圈間隔部分,排列 如正方形之四個邊。如此,線圈之線圈連接部分將會設在正 方形的角邊,並分別在四個位置固定在隔板上。磁鐵迴路之 外圍輪廓可以是任意形狀,包括圓形。同樣的,間隔及線圈 之間隔部分可以排列成圓形之弧狀曲線。 (請先閱讀背面之注意事項再填寫本頁) --裝 --線· 瘦齊郎智慧时轰局員工消費合作钍印製 510139 '______------- .一 1 ..卜.’ :Cff 刀 W ' A7 1 λ. Β7 五、發明說明(7·) 元件符號說明 經濟部智慧財產局員工消費合作社印製 10 轉換器 20 磁鐵迴路 21 長連接腳 22 短連接腳 23 中間連接腳 24 開口 25 長連接腳之平面 26 磁鐵 27 中間連接腳之表平面 28 間隔 29 極面 30 線圈 31 線端 32 開口 33 彎曲軸線 34 第一及第二間隔部分 35 連接部分 40 隔板 41 隔板之導電部分 42 舌狀結構 50 塑膠模套 51 邊緣 52 凹槽 (請先閱讀背面之注意事項再填寫本頁) r-------訂-丨 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -11 -
Claims (1)
- 510139A8 B8 C8 D8 六、申請專利範圍 弟90104153號專利案申請專利範圍修正本 1· 一種電聲轉換器(10),其包括: -一由磁化傳導物質所製成之磁鐵迴路(20),包括有 一對彼此相對之表平面(27、29)及位於其間之間隔 (28),及一在間隔(28)中用來產生磁場之磁鐵(26), -一隔板(40), -一由導電之電線所組成之線圈(3〇),其固定到隔板 (40)上,此線圈(3〇)有位於間隔㈣之線圈間隔部分 (34), 其特徵為,磁鐵迴路(2〇)有一對彼此相對之表平面(27、 29),其形成第一及第二間隔(28),線圈(3〇)具有第一及 第二由電線組成之線圈間隔部分(34),分別位於第一及 ,二間隔⑽)中,由電線組成之線圈連接部分(π)會將 第-及第二線圈間隔部分㈣連接在一起,線圈⑼)也 正藉著這由電線組成之線圈連接部分(35)固定到隔 (40)上。 ’其特徵為,每v 7 ^ 叫則性物質(21、22、23) 根據申請翻細帛!項触之無$,纟特_, -對彼此姆之奸面(27、29)縣±是幼平行。 根據申請專利薇圓篚2瑁齡# 4 η α ^.本紙翻1^ 申請專利範圍 所製成之結構體,其内含_ 口(24),每-開口(24)都 有—對彼此相對之表平面(27、29),其分別形成第一及 第二間隔(28)。 5,根據中請專利軸第4項所述之轉換器(1G),其特徵 為磁鐵迴路之開口(Μ)係完全暢通,磁化傳導物質 (21 22、23)分別產成介於每一對彼此相對之表平面 @ m即在間隔(28)中之磁迴路徑。 6.根據愤專概_ 1 W述之無器(10),其特徵 為,隔板(4〇)有—電導部分⑼,線圈(3〇)之電線線端⑼ 連接到此隔板(40)之導電之部分⑷),此外,此導電之 部分⑼有一由外部可通知部分來導電關閉之轉換=。 -種導電電線之線圈(30),用於根據申請專利範圍第! "頁所述之轉換器(1〇),其特徵為,線圈(3())有_線圈連 接部分(35),其包括一非常平坦之連接平面固定到隔板 (4〇)也有一、線圈間隔部分(Μ)在連接平面外部,每個 線圈間隔部分(34)包括有多個電線區段單元位於連接 平面外部並且基本上和連接平面平行。 «憎專利細第7項所述之線圈⑽,其特徵為, ,線區段單元在線關隔部分㈣中基本絲為線性。 一種製造由導電電線所組成之線圈(3())之方法,其方法 步驟為·· 利用導電電縣製造―軸,其包含線圈轴, 以兩彎折軸線(33)為基線來彎折此線圈(3〇),並使其 和線圈軸垂直。 〃 ιυ g! 經濟部智慧財產局員工消費合作社印製 修正丨 申請專利範圍 10. K $雜換态⑽’其有一對由磁化傳導物質所製 Ϊ放ΪΓΪΓ表平面(27、29),_成有間_ t放置由^電線顺成之線圈部分,而磁擊)在間 隔(2S)中產生磁場’其特徵為,.此磁鐵鱗⑽有兩對 彼此相對之表平面(27、29),其形成第—及第二間隔 (28) 〇 a根據申請專利範園第10項所述之磁鐵迴路(2〇),其特 徵為,每一對彼此相對之表平面(27、29)基本上是互相 平行。 12·根據申請專利範圍第11項所述之磁鐵迴路(20),其特 徵為,每一磁鐵(26)有彼此相對之表平面,其接在間隔 (28)之兩表平面(27、29)中之其中一表平面上。 13·根據申請專利範圍第1〇項所述之磁鐵迴路(2〇),其特 徵為’磁鐵迴路(20)包含一由磁化軟性物賢(21、22、23) 所製成之結構體,其内含有兩開口(24),每一開口(24) 都有一對彼此相對之表平面(27、29),其分別形成第一 及第二間隔(28)。 14·根據申請專利範圍第13項所述之磁鐵迴路(20),其特 徵為,磁鐵迴路之開口(24)係為完全暢通,磁化傳導物 質(21、22、23)分別產成介於每一對彼此相對之表平面 (27、29)之間,亦即在間隔(28)中之磁迴路徑。ί-----------線一 (請先閱讀背面之注意事項再填寫本頁) +紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -14 -
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US (3) | US7062063B2 (zh) |
EP (3) | EP1439731A1 (zh) |
JP (1) | JP4084190B2 (zh) |
KR (1) | KR20030074714A (zh) |
CN (2) | CN1281097C (zh) |
AT (1) | ATE282286T1 (zh) |
CA (1) | CA2435932A1 (zh) |
DE (1) | DE60201885T2 (zh) |
TW (1) | TW510139B (zh) |
WO (1) | WO2002060220A1 (zh) |
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-
2001
- 2001-02-23 TW TW090104153A patent/TW510139B/zh not_active IP Right Cessation
-
2002
- 2002-01-25 KR KR10-2003-7009512A patent/KR20030074714A/ko active IP Right Grant
- 2002-01-25 DE DE60201885T patent/DE60201885T2/de not_active Expired - Lifetime
- 2002-01-25 AT AT02709977T patent/ATE282286T1/de not_active IP Right Cessation
- 2002-01-25 EP EP04075735A patent/EP1439731A1/en not_active Withdrawn
- 2002-01-25 EP EP04076977A patent/EP1469700A3/en not_active Withdrawn
- 2002-01-25 JP JP2002560424A patent/JP4084190B2/ja not_active Expired - Fee Related
- 2002-01-25 US US10/057,848 patent/US7062063B2/en not_active Expired - Fee Related
- 2002-01-25 WO PCT/DK2002/000054 patent/WO2002060220A1/en active IP Right Grant
- 2002-01-25 EP EP02709977A patent/EP1354496B1/en not_active Expired - Lifetime
- 2002-01-25 CN CNB028041755A patent/CN1281097C/zh not_active Expired - Fee Related
- 2002-01-25 CN CN2006101213000A patent/CN1913724B/zh not_active Expired - Fee Related
- 2002-01-25 CA CA002435932A patent/CA2435932A1/en not_active Abandoned
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2004
- 2004-09-07 US US10/934,501 patent/US7376240B2/en not_active Expired - Fee Related
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2006
- 2006-04-14 US US11/403,965 patent/US20060215873A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI387358B (zh) * | 2009-04-10 | 2013-02-21 | Merry Electronics Co Ltd | 具雙磁迴路之電聲轉換器 |
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CA2435932A1 (en) | 2002-08-01 |
CN1913724B (zh) | 2012-03-21 |
US7062063B2 (en) | 2006-06-13 |
US20050031152A1 (en) | 2005-02-10 |
JP2004517591A (ja) | 2004-06-10 |
EP1354496B1 (en) | 2004-11-10 |
ATE282286T1 (de) | 2004-11-15 |
DE60201885D1 (de) | 2004-12-16 |
CN1913724A (zh) | 2007-02-14 |
WO2002060220A1 (en) | 2002-08-01 |
CN1281097C (zh) | 2006-10-18 |
US7376240B2 (en) | 2008-05-20 |
CN1489880A (zh) | 2004-04-14 |
DE60201885T2 (de) | 2005-11-10 |
US20020114214A1 (en) | 2002-08-22 |
KR20030074714A (ko) | 2003-09-19 |
EP1439731A1 (en) | 2004-07-21 |
EP1469700A2 (en) | 2004-10-20 |
EP1354496A1 (en) | 2003-10-22 |
US20060215873A1 (en) | 2006-09-28 |
JP4084190B2 (ja) | 2008-04-30 |
EP1469700A3 (en) | 2008-02-27 |
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