TWI280771B - Multiplex telephone adaptor box - Google Patents

Multiplex telephone adaptor box Download PDF

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Publication number
TWI280771B
TWI280771B TW94144137A TW94144137A TWI280771B TW I280771 B TWI280771 B TW I280771B TW 94144137 A TW94144137 A TW 94144137A TW 94144137 A TW94144137 A TW 94144137A TW I280771 B TWI280771 B TW I280771B
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TW
Taiwan
Prior art keywords
telephone
electrically connected
connector
circuit board
transfer box
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TW94144137A
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Chinese (zh)
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TW200723825A (en
Inventor
Ming-Jen Liou
Shing-Men Liou
Shing-Yi Liou
Shing-Huan Liou
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Shing-Yi Liou
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Priority to TW94144137A priority Critical patent/TWI280771B/en
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Publication of TWI280771B publication Critical patent/TWI280771B/en
Publication of TW200723825A publication Critical patent/TW200723825A/en

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Abstract

The present invention relates to a multiplex telephone adaptor box to be used with a telephone, said multiplex telephone adaptor box comprising: a casing; a circuit board disposed in the casing; a plurality of connectors disposed on the casing and electrically connected to the circuit board; a plurality of switches disposed on the casing and electrically connected to the circuit board, each switch being corresponded to each connectors; an adjustment switch disposed on the casing and electrically connected to the circuit board; a telephone plug disposed on the casing and electrically connected to the circuit board; and a telephone socket disposed on the casing and electrically connected to the circuit board; accordingly, the telephone may be used with a variety of earphone microphones.

Description

1280771 九、發明說明: 【發明所屬之技術領域】 一種多工電話轉接盒,特 的轉接盒,用以提供多種型式配合電話機使用 【先前技術】 種以之耳機麥克風連接使用。 水所周知,桌上型雷每撞B , ^ 及-話筒2a。使用者欲上機具有一主機1 3 拿起即可撥打使用。只要將該話筒h :::,傳統桌上型電話機僅提供手 土。當使用者在長時間手持話…•,手 二=痠而感到不適。此外,使用者在手持該話筒2 :的 ^感到不^欲處理其他事務時,就會受該話筒23的限制 W人為解決因長時間手持話筒所產生之 :’:及解決因手持話筒而無法處理其他事務的不便:因’ 而創作一種電話轉接盒4 a,如第一圖所- 盒4 a的一端藉一訊號傳輸線3 a電:= 線4 1 a電性連接於該電話機的主機丄: =另:又置-插孔4 2 a ’該插孔4 2 3提供—耳 風5 a插置使用,以達到免持話筒的目的,且 話筒通話所產生的問題。 '、 寸 然而,該電話轉接盒4 a僅提供該插孔4 機麥克風5 a插置使用,因此已不足以應付現今科技工品 5 1280771 ‘ 的使用,如行動電話專用之耳機麥克風、電腦專用之耳機 " 麥克風、網路電話專用之耳機麥克風、USB耳機麥克風及 藍芽耳機麥克風等等。 是以,由上可知,上述傳統之電話轉接盒,在實際使 用上,顯然具有不便與問題存在,而有待加以改善。 緣是,本發明人有感上述問題之可改善,乃特潛心研 ‘ 究並配合學理之運用,終於提出一種設計合理且有效改善 ' 上述問題之本發明。 • 【發明内容】 〔發明目的〕 本發明之主要目的,在於提供一種多工電話轉接盒, 係配合一電話機使用,該多工電話轉接器具有複數個連接 器,用以提供不同型式的耳機麥克風連接使用,以達成電 話機配合多種型式之耳機麥克風使用的目的。 〔發明特徵〕 為了達成上述目的,本發明主要係在提供一種多工電 ® 話轉接盒,係與一電話機配合使用,該電話機具有一主機 及一掛設並電性連接於該主機的話筒,該多工電話轉接盒 . 包括:一殼體;一電路板,係設置於該殼體的内部;複數 . 個連接器,係分別設置於該殼體上並電性連接於該電路板 上;複數個切換開關,係分別設置於該殼體上並電性連接 於該電路板上,各切換開關對應連接於各連接器;一調整 開關,係設置於該殼體上並電性連接於該電路板上;一第 一輸出/輸入端,係設置於該殼體上並電性連接於該電路板 6 1280771 • 用以甩性連接於該主機;及一塗-认 置於該殼體上並電性連接 出/輸人端,係設 該話筒。 …x兒路板上,用以電性連接於 在車父j土貫施例中,# iσσ USB連接器、USB =、連接器分別為藍芽連接器 'mini 了心⑴物連f:、耳機連接器侧(咖伽^ 饥1電話插頭。該第二:出連,:::第-輸出/輸入端為 多工電話轉接盒進 I而為R川電話插座。該 _殼體上並電性連接於。tc,係設置於該 變電阻,用以調整音量的大小。该聲曰調變裝置係一可 使用時,該第一輪出/輪 上,而該電話機^接万…亥电活機的主機 出/輸入端,久::猎:―訊號傳輸線連接於該第二輸 稽此5亥多工電話轉接各西?人 每~型式之耳機麥克風對 口“琶話機,提供 機配合多種型式之耳嬙欠: ;σ連接益,以達到電話 種土式之耳機麥克風使用的目的。 【實施方式】 為更進一步闡述本發明為達 手段及功效,請參閱以下有關本所採取之技術 相信本發明之目的、特徵 體之瞭解,然而所附圖式僅提供參考與說深,具 對本發明加以限制。 /、 並非用來 〔詳細說明〕 請參閱第二圖至第三圖,係本發明之多工 之較佳實施例之立體組合圖及立體分解圖。二車 轉接盒1,係與一電話機2配合 夕工包活 4 I話機2具有一 7 1280771 :機2 1及-話筒2 2 ’該話筒2 2係藉由—訊號傳輸線 3電性連接於該主機2 1上,並且掛設於該主機2丄 t,該多工電話轉接盒1包括:一殼體1 1、一電路板1 第一輸出/輸入端i 6及一第二輸出/輸入端丄 、後數個連接器丄3、複數個切換開關工4、—調整開 關1 5 、一 # 从,-… 7。 π亥冗又體1 1的外表面設有複數個開孔1 1 1。 1連接盤11的内部,用以提供各 輸出/〜… 該調整開關15、該第- 上。α # 6及该第二輸出/輸入端i 7電性連接於其 該等別設置於該殼體u上且對應於 專用之耳機連接器、電腦用'連接:1 3 j (如行動電話 用之耳機連接器)、〇、如之耳機連接$或網路電話專 3 5或_連接器丄:了:; Jack 11)連接器i 接於一相對應的藍芽耳機爽S牙連接器131係用以連 2或_連接器13==,讀連接器” 機麥克風。各耳機連2= 相對應的耳機麥克風,如行 =4係用从連接於一 腦專用之耳機麥克風或網路電:專用2機麥克風、電 連接器135與RJ45連接器機麥克風。_ 的周邊設備。 ’、用以連接於相對應 8 1280771 ㈣換開關1 4係分別設置於錢體1 1上並電性 板! 2上。各切換開關14係對應連接於各 模式,用以切換成各對應連接之耳機麥克風的接聽 開關1 5係設置於該殼體1 1上並電性連接於 D 電;:ΐΐί上。該調整開關15係用以調整不同排線的 插座之間的電性連接。 只汉甩沽1280771 IX. Description of the invention: [Technical field of invention] A multiplexed telephone transfer box, a special transfer box for providing various types of use with a telephone. [Prior Art] A headset microphone is used for connection. Water is well known, table-type mines hit B, ^ and - microphone 2a. The user wants to have a host 1 3 on the machine to pick up and use it. As long as the microphone h :::, the traditional desktop phone is only available. When the user holds the hand for a long time...•, the hand 2 = acid and feels uncomfortable. In addition, when the user holds the microphone 2: ^ does not want to deal with other matters, it will be limited by the microphone 23 to solve the problem caused by the long-term handheld microphone: ': and solve the problem due to the handheld microphone The inconvenience of handling other transactions: creating a telephone transfer box 4 a, as shown in the first figure - one end of the box 4 a borrows a signal transmission line 3 a electricity: = line 4 1 a is electrically connected to the host of the telephone丄: = Another: Re-disc 4 2 a 'This jack 4 2 3 provides - ear wind 5 a plug-in use, in order to achieve the purpose of hands-free microphone, and microphone problems. ', However, the telephone transfer box 4 a only provides the jack 4 microphone 5 a plug-in use, so it is not enough to cope with the use of today's technology products 5 1280771 ', such as headsets for mobile phones, computers Dedicated headphones " microphones, earphone microphones for VoIP, USB headsets, Bluetooth headsets, and more. Therefore, it can be seen from the above that the above-mentioned conventional telephone transfer box has obvious inconvenience and problems in actual use, and needs to be improved. The reason is that the inventors have felt that the above problems can be improved, and they have devoted themselves to research and cooperation with the theory, and finally proposed a present invention which is rational in design and effective in improving the above problems. SUMMARY OF THE INVENTION [Invention] The main object of the present invention is to provide a multiplexed telephone adapter box for use with a telephone having a plurality of connectors for providing different types of connectors. The earphone microphone is connected to achieve the purpose of using the phone with various types of earphone microphones. [Features of the Invention] In order to achieve the above object, the present invention mainly provides a multiplex power switch box for use with a telephone having a main unit and a microphone that is suspended and electrically connected to the main unit. The multiplexed telephone transfer box includes: a casing; a circuit board disposed inside the casing; and a plurality of connectors respectively disposed on the casing and electrically connected to the circuit board A plurality of switch switches are respectively disposed on the casing and electrically connected to the circuit board, and each switch is connected to each connector; an adjustment switch is disposed on the casing and electrically connected On the circuit board; a first output/input terminal is disposed on the housing and electrically connected to the circuit board 6 1280771; for connection to the host; and a coating-identification The microphone is connected to the body and electrically connected to the human body. ...x children's board, used to be electrically connected to the parent's example, # iσσ USB connector, USB =, the connector is a Bluetooth connector 'mini heart (1) thing f:, Headphone connector side (Caga + Hung 1 phone plug. The second: out, :::: the first output / input is a multiplexed telephone transfer box into the I and the R Chuan phone socket. The _ shell And electrically connected to the .tc, which is disposed in the variable resistor for adjusting the volume. The sonar modulation device is used when the first wheel is on/off, and the phone is connected to the ... The host output/input terminal of the Haidian live machine, long time:: Hunting: “Signal transmission line is connected to the second transmission. This 5H multiplex telephone is transferred to each west. Everyone’s type of headset microphone is opposite.” The machine cooperates with a variety of types of ear squats: σ connection benefits, in order to achieve the purpose of the telephone type soil type earphone microphone. [Embodiment] To further illustrate the present invention as a means and function, please refer to the following regarding the The technology of the present invention is believed to be understood by the object of the present invention. The invention is not limited to the details of the invention. [0012] Please refer to the second to third figures, which are perspective assembled and exploded views of a preferred embodiment of the multiplex of the present invention. The car transfer box 1 is matched with a telephone set 2 and the night work package 4 I phone 2 has a 7 1280771: the machine 2 1 and the - microphone 2 2 'the microphone 2 2 is electrically connected to the signal transmission line 3 The mainframe 2 1 is mounted on the host 2 丄t, and the multiplexed telephone transfer box 1 includes: a casing 1 1 , a circuit board 1 first output/input terminal i 6 and a second output/input The end face, the last number of connectors 丄3, the plurality of switchers 4, the adjustment switch 1 5 , a #从, -... 7. The outer surface of the πHui and the body 1 1 is provided with a plurality of openings 1 1 1. The inside of the platter 11 for providing each output /~... The adjustment switch 15, the first-up.α#6 and the second output/input terminal i7 are electrically connected to the other The housing u corresponds to a dedicated earphone connector, and the computer uses a 'connection: 1 3 j (such as a headphone connector for a mobile phone), a headset, and a headphone connection. $ or VoIP phone 3 5 or _ connector 丄: :: Jack 11) connector i connected to a corresponding Bluetooth headset S tooth connector 131 is used to connect 2 or _ connector 13 == , read the connector" machine microphone. Each earphone is connected with 2 = corresponding earphone microphone, such as line = 4 is used to connect to a dedicated earphone microphone or network power: dedicated 2 machine microphone, electrical connector 135 and RJ45 connector machine microphone. _ peripheral equipment. ', used to connect to the corresponding 8 1280771 (four) change switch 1 4 series are set on the money body 1 1 and the electric board! 2 on. Each switch 14 is connected to each mode, and the switch 15 for switching to the corresponding connected earphone microphone is disposed on the casing 1 1 and electrically connected to the D power; The adjustment switch 15 is used to adjust the electrical connection between the sockets of different cables. Han Han

^第―輪出/輸人端i 6,係設置於該殼體1U f生連接於該電路板1 2上,用 用以兒性連接於該主機2 1。 輸入端16為—電話插頭,該電話插頭為 如第:【所,麵主機21之—Rm插座2ιι中 性連===11 ?設置於該殼體11上並電 該第二輸出=二:以電性連接於該話筒22。 RJ11插座2|iA:活插座,該電話插座為The first-round/input terminal i6 is disposed on the circuit board 1 2 and is connected to the host board 21 for childhood. The input terminal 16 is a telephone plug, and the telephone plug is as follows: [, the surface host 21 - Rm socket 2 ιι neutral connection ===11? is set on the housing 11 and the second output = two: Electrically connected to the microphone 22. RJ11 socket 2|iA: live socket, the telephone socket is

包丨逆接π5亥—輸出/輸入端1 7中。 所述之多工電話轉接盒Ί ,立 A 裝置18,該聲音調變裝置8:4:步f括-聲音調變 性連接於該電路板i 2上。該聲 番 电 電阻,用以調節音量的大小θπ周、“置18係-可變 四圖所示’係本發明之多1電話轉接盒之較 接於—電話機以提供—頭戴式耳機麥克風連接 使用之4圖。-料機麥克㈣料塞式耳齡克風= 9 1280771 : = : =克風。然而,在第四圖中僅表示一頭戴式耳 於該多工電話轉接盒1之實施例。該頭戴 式耳枝麥克風3具有一耳機接頭3工,該耳機接頭3 接器1 3 4 ’並插接於其中。當欲使用該頭 接聽電話時,只要將所對應的切換開關 丄4切換成開啟的狀態即可。 請參閱第五圖所示,係本發 +上 佳實施例配接於—電話機尸:/ #㈣接盒之較 芽耳機麥克風4與藍芽連接器13 J 當該; ί是一個延伸的無線訊號發送端。 可將該電話機2裡的電訊:;=相連時,即 中介處理,以藍芽傳輸方式㈣監牙連接器1 3 i的 芽耳機麥克風4相互連接:::使3樣的頻率下與該藍 接聽電話時,只要將所對應二; 狀態即可。 、1關14切換成開啟的 請參閱第六圖所示,係本發 佳實施例配接於—電話機 轉接盒之較 7之示意圖。一 USB耳機麥克風5US^幾麥=連接使 1,該哪接頭51對應於該us接=;娜接頭5 於其中。當欲使用該USB耳 妾1 3 3,並插接 將所對應的切換開關14切^ =風5接聽電話時,只要 其它型式之耳機麥克風即可。 :、網路電話專用之耳機麥克風、電:::用之耳機麥克 10 1280771 ^接於該多工電話轉接盒丄 連接,以便通話使用並達成電話機=:錢2達成電性 克風使用的目的。 、D夕種型式之耳機麥 〔發明特點及優點〕 特點是以,透過本發明之多工電話轉接盒,具有如下述之 該多工電話轉接盒具有多種型式之連接器, 十應於各種型式之耳機麥克風,以供各 I 时 連接於該多工電話轉接盒, 二;、二克風 麥克風使㈣目的。“錢配合多種㈣之耳機 :,以二斤述’僅為本發明之具體實施例之 :圖式’亚非用以限制本發明及本發明之特月 技術領域中具有通常知識者 斤屬 效修飾或變化,皆應包含於本發日狀專利範圍中。)寻 【圖式簡單說明】 f圖係習知電話轉接盒配合—電話機之立體示意圖。 弟—圖係本發明之多工電話轉接盒之較佳 合圖。 版、、1 第三圖係本發明之多工電話轉接盒之較佳實施例之八 解圖。 刀 第四圖係本發明之多工電話轉接盒之較佳實施例配接於— 電話機以提供一頭戴式耳機麥克風連接使用 圖。 思 11 1280771 第五圖係本發明之多工電話轉接盒之較佳實施例配接於一 電話機以提供-藍芽耳機麥克風連接使用之示意 圖。 第六圖係本發明之多工電話轉接盒之較佳實施例配接於一 電話機以提供一 USB耳機麥克風連接使用之示意 圖。 【主要元件符號說明】 〔習知〕 a主機 2 a話筒 3 a 訊號傳輸線 4 a 電話轉接盒 4la 訊號傳輸線 42a 插孔 ^ a 耳機麥克風 〔本發明〕 1 多工電話轉接盒 1 1 殼體 111 開孔 12 電路板 1 3連接器 13 1 藍芽連接器 13 3 USB連接器 13 5 RJ11連接器 1 4 切換開關 13 2 mini USB 連接 p 13 4 耳機連接器 13 6 RJ45連接器 15 調整開關 12 1280771 16 第一輸出/輸入端 17 第二輸出/輸入端 18 聲音調變裝置 2 電話機 2 1 主機 2 11 RJ11 插座 2 2 話筒 23 訊號傳輸線 2 3 1 RJ11 插頭 3 頭戴式耳機麥克風 3 1 耳機接頭 4 藍芽耳機麥克風 5 USB耳機麥克風 5 1 USB接頭 13The package is reversed to π5 hai—output/input terminal 1 7 . The multiplexed telephone transfer box 立, the stand A device 18, the sound modulation device 8: 4: step f-sound modulation is connected to the circuit board i 2 . The sound electric resistance is used to adjust the volume of the volume θπ weeks, "the 18-series-variable four-picture" is the more than one telephone transfer box of the present invention is connected to the telephone to provide - the headset 4 diagrams for microphone connection. - Feeder Mike (4) Plug type ear age gram wind = 9 1280771 : = : = gram wind. However, in the fourth figure only one headset is transferred to the multiplex call An embodiment of the box 1. The headphone microphone 3 has a headphone connector 3, and the headphone connector 3 3 4' is plugged therein. When the head is to be used to answer the call, as long as it is corresponding The switch 丄4 can be switched to the on state. Please refer to the fifth figure, which is the best embodiment of the present invention. The telephone is connected to the telephone corpse: / #(4) The bud headset microphone 4 and the Bluetooth Connector 13 J when; ί is an extended wireless signal transmitting end. The telecommunications in the telephone 2 can be:; = when connected, that is, the intermediary processing, in the Bluetooth transmission mode (four) the connection of the dental connector 1 3 i The headphone microphones 4 are connected to each other::: When the telephone is answered with the blue frequency at 3 frequencies, The second state can be turned on. Mai = connection makes 1, which connector 51 corresponds to the us connection =; Na connector 5 is in. When the USB earphones 1 3 3 are to be used, and the corresponding switch 14 is cut and the wind switch 5 When you are on the phone, you can use other types of earphone microphones. : Headset microphone for wireless phone, electricity::: Headset microphone 10 1280771 ^ Connected to the multiplexed telephone transfer box , for call use and reach Telephone =: Money 2 achieves the purpose of using electric gram winds. D-type earphones (invention features and advantages) The feature is that the multiplexed telephone adapter box of the present invention has the multiplex as described below. The telephone transfer box has a variety of types of connectors, and is suitable for various types of earphone microphones, for each I-time connection to the multiplexed telephone transfer box, two; two grams of wind microphone for (four) purposes. (4) Headphones: DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION The present invention is intended to be used to limit the invention and the present invention. Seek [Simplified description of the diagram] f diagram is a three-dimensional diagram of the familiar telephone transfer box. The figure is a preferred view of the multiplexed telephone transfer box of the present invention. The third embodiment is an eight-figure diagram of a preferred embodiment of the multiplexed telephone switch box of the present invention. Knife The fourth embodiment is a preferred embodiment of the multiplexed telephone transfer box of the present invention coupled to a telephone to provide a headset microphone connection diagram.思 11 1280771 The fifth figure is a schematic diagram of a preferred embodiment of the multiplexed telephone transfer box of the present invention coupled to a telephone to provide a Bluetooth headset connection. Figure 6 is a schematic illustration of a preferred embodiment of the multiplexed telephone pod of the present invention coupled to a telephone to provide a USB headset connection. [Main component symbol description] [General] a host 2 a microphone 3 a signal transmission line 4 a telephone transfer box 4la signal transmission line 42a jack ^ a headphone microphone [invention] 1 multiplexed telephone adapter box 1 1 housing 111 Hole 12 Board 1 3 Connector 13 1 Bluetooth connector 13 3 USB connector 13 5 RJ11 connector 1 4 Switch 13 2 mini USB connection p 13 4 Headphone connector 13 6 RJ45 connector 15 Adjustment switch 12 1280771 16 First output / input 17 Second output / input 18 Sound modulation device 2 Telephone 2 1 Main unit 2 11 RJ11 Socket 2 2 Microphone 23 Signal transmission line 2 3 1 RJ11 Plug 3 Headphone microphone 3 1 Headphone connector 4 Bluetooth Headset Microphone 5 USB Headset Microphone 5 1 USB Connector 13

Claims (1)

1280771 十、申請專利範圍: 1、 一種多工電話轉接盒,係與一電話機配合使用, 該電話機具有一主機及一掛設並電性連接於該主機的話 筒,該多工電話轉接盒包括: 一殼體; 一電路板,係設置於該殼體的内部; 複數個連接器,係分別設置於該殼體上並電性連接於 該電路板上; 複數個切換開關,係分別設置於該殼體上並電性連接 於該電路板上,各切換開關對應連接於各連接器; 一調整開關,係設置於該殼體上並電性連接於該電路 板上, 一第一輸出/輸入端,係設置於該殼體上並電性連接於 該電路板上,用以電性連接於該主機;及 一第二輸出/輸入端,係設置於該殼體上並電性連接於 該電路板上,用以電性連接於該話筒。 2、 如申請專利範圍第1項所述之多工電話轉接盒, 其中該等連接器分別為藍芽連接器、mini USB連接器、USB 連接器、耳機連接器、RJ11 (Registered Jack 11)連接 器、或RJ45連接器。 3、 如申請專利範圍第1項所述之多工電話轉接盒’ 其中該第一輸出/輸入端為電話插頭。 4、 如申請專利範圍第3項所述之多工電話轉接盒, 其中該電話插頭為RJ11插頭。 14 1280771 5如申凊專利範圍第1項所述之多 ,、中該第二輪出/輪入端為電話插座。 電話轉接盒, 6、 如申請專利範圍第5項所述之多 其中該電話插座為RJ11插座。 電話轉接盒, 7、 如申請專利範圍第丄項所述之多工+ 其進一步句把 ^ fr 3. 电°舌美*接立, 乂包括一聲音調變裝置,係設 連接於該電路板上。 H脰上亚t性 其中利範圍第7項所述之多工電話轉接盒, κ耳曰调愛:ι置係一可變電阻。1280771 X. Patent application scope: 1. A multiplexed telephone transfer box is used in conjunction with a telephone having a host and a microphone hanged and electrically connected to the host, the multiplexed telephone transfer box The utility model comprises: a casing; a circuit board disposed inside the casing; a plurality of connectors respectively disposed on the casing and electrically connected to the circuit board; the plurality of switching switches are respectively set The switch is electrically connected to the circuit board, and each switch is connected to each connector; an adjustment switch is disposed on the housing and electrically connected to the circuit board, a first output The input terminal is disposed on the housing and electrically connected to the circuit board for electrically connecting to the host; and a second output/input terminal is disposed on the housing and electrically connected The circuit board is electrically connected to the microphone. 2. The multiplexed telephone transfer box according to claim 1, wherein the connectors are a Bluetooth connector, a mini USB connector, a USB connector, a headphone connector, and a RJ11 (Registered Jack 11). Connector, or RJ45 connector. 3. The multiplexed telephone transfer box as described in claim 1 wherein the first output/input is a telephone plug. 4. The multiplexed telephone transfer box according to claim 3, wherein the telephone plug is an RJ11 plug. 14 1280771 5 As stated in item 1 of the patent application scope, the second round/wheel entry end is a telephone socket. The telephone transfer box, 6, as described in claim 5, wherein the telephone socket is an RJ11 socket. Telephone transfer box, 7. The multiplex as described in the scope of the patent application, the further sentence is ^ fr 3. The electric tongue is connected to the US, and includes a sound modulation device, which is connected to the circuit. On the board. H脰上亚t性 The multiplexed telephone transfer box described in item 7 of the benefit range, κ deaf 曰 love: ι is a variable resistor. 1515
TW94144137A 2005-12-13 2005-12-13 Multiplex telephone adaptor box TWI280771B (en)

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TW200723825A TW200723825A (en) 2007-06-16

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