JP3568875B2 - Portable wireless telephone - Google Patents

Portable wireless telephone Download PDF

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Publication number
JP3568875B2
JP3568875B2 JP2000101383A JP2000101383A JP3568875B2 JP 3568875 B2 JP3568875 B2 JP 3568875B2 JP 2000101383 A JP2000101383 A JP 2000101383A JP 2000101383 A JP2000101383 A JP 2000101383A JP 3568875 B2 JP3568875 B2 JP 3568875B2
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Japan
Prior art keywords
microphone
speaker
telephone
wireless telephone
sound
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JP2000101383A
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JP2001285433A (en
Inventor
雄一郎 岸波
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NEC Platforms Ltd
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NEC Platforms Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は携帯式無線電話機に関し、特に電話機の前面と裏面の両面より音声の入出力ができ両面を利用して二人一緒に相手方と通話ができる機能を有する携帯無線電話機に関するものである。
【0002】
【従来の技術】
従来、この種の無線式携帯電話機は通話者間で1対1で通話を行なうものとして構成され、扱われてきた。また、受信側にスピーカを使用し、送信側のマイクの感度を上げることにより不特定多数で通話をすることも可能である。この場合、通話者はハンドセットを持たずにハンズフリーで通話することができ、マイクの集音できる範囲で自由に移動できる等の利点がある。
【0003】
また、当事者間で言葉が通じない場合、通訳者を介入させるシステムとして特開平10−32893号公報に開示された「通訳システム並びに翻訳システムに利用することができる携帯電話用のフォンマイク」がある。図6は該携帯電話用フォンマイクの使用例を示す図である。
【0004】
これは携帯電話機61の受話音声を聞き取り部63より聞き取り、マイク部64から発声することにより、携帯電話機61を介して送話できるフォンマイク65を複数個有する分岐型フォンマイクFを使用している。分岐型フォンマイクFを携帯電話機61の接続部62に接続し、この携帯電話機61を介して通訳者Aと通話できるようにし、分岐型フォンマイクFの一方のフォンマイク65Aを通訳の必要な外国人Bに装着させ、他方のフォンマイク65Bを通訳を受ける被通訳者Cが装着し、携帯電話機61によって、これら3者A、B、Cが同時に会話できるようにするというものである。
【0005】
しかしながら、上述したハンズフリーの携帯電話機で不特定多数と通話する方法はマイクの集音感度を高くする必要があり、必然的に騒音に弱くなる。また、スピーカ部も不特定多数に適したものであるので、プライバシーを守る必要のある二人だけで一緒に使用する場合等には不適当である。
【0006】
一方、上述した「通訳システム並びに翻訳システムに利用することができる携帯電話用のフォンマイク」は携帯電話機61の接続部62に分岐型フォンマイクFを接続することにより通話するので、分岐型フォンマイクFを常時携帯することが必要である。また、使用時の分岐型フォンマイクFのワイヤも煩わしい。また、複数のフォンマイクを使用するのでマイク感度の調整も必要になる場合もあり、マイク感度を操作する機能は全ての携帯電話に設けられている機能ではないので汎用性に欠けると云う問題があった。
【0007】
【発明が解決しようとする課題】
本発明は上述の点に鑑みてなされたもので、携帯式無線電話機の前面と裏面の両面より音声の入出力ができる機能を設け、二人が一緒になって相手と通話することができる携帯無線電話機を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記課題を解決するため請求項1に記載の発明は、電話機の前面及び裏面の両面に受話音を出力するスピーカ及び送話音を入力するマイクを装着し、該電話機の前面及び裏面から同時に通話できる機能を具備し、前記裏面に装着したスピーカ及びマイクの前面を遮蔽する遮蔽板を回動自在又はスライド自在に設けたことを特徴とする携帯無線電話機にある。
【0009】
上記のようにスピーカ及びマイクの前面を遮蔽する遮蔽板を回動自在又はスライド自在に設けたので、該遮蔽板でスピーカ及びマイクの前面を覆うことにより、騒音や多数の人中で従来の携帯無線電話機と同様に使用することができる。また、電話機の前面及び裏面の両面にスピーカ及びマイクを装着し、電話機の前面及び裏面から同時に通話できる機能を設けたので、二人が一緒になって相手と通話することができる。
【0010】
請求項に記載の発明は、請求項1に記載の携帯無線電話機において、電話機の裏面側に装着したスピーカ及びマイクを駆動する駆動回路に切替スイッチを設け、該スピーカ及びマイクを該駆動回路から切離すことができるように構成したことを特徴とする。
【0011】
上記のように電話機の裏面側に装着したスピーカ及びマイクを駆動回路から切離すことができるように構成したので、裏面に装着したスピーカ及びマイクを不動作とし従来の携帯無線電話機と同様に使用することができる。
【0014】
請求項に記載の発明は、請求項1に記載の携帯無線電話機において、電話機の裏面側に装着するスピーカ及びマイクに替えて音声が通る音声孔を設け、該音声孔を通して前面側に装着したスピーカの受話音を出力すると共に、前面側に装着したマイクに送話音を入力するようにしたことを特徴とする。
【0015】
上記のように電話機の裏面側に装着するスピーカ及びマイクに替えて音声が通る音声孔を設け、前面側に装着したスピーカ及びマイクを裏面側と共用して使用するので、両面で同時に通話できる携帯無線電話機を安価に提供できる。
【0018】
【発明の実施の形態】
以下、本発明の実施の形態例を図面に基づいて詳細に説明する。図1及び図2は本発明に係る携帯無線電話機の外観を示す図であり、図1(a)は前面を示す図、図1(b)は裏面を示す図、図2(a)、(b)は側面を示す図である。図示するように、本発明に係る携帯無線電話機1は固定部10と該固定部10の下方に位置する2個の可動部11、11からなる。該可動部11、11はヒンジ機構を中心に互いに相反する方向に屈曲するようになっている。
【0019】
固定部10の前面(表面)部にスピーカ2、表示器6、ファンクションキー7、ダイヤルキー8が配置装着され、上部に送受信用のアンテナ9を装着している。また、固定部10の裏面にスピーカ3が配置装着されている。また、前面側の可動部11の前面部にはマイク4が配置装着されている。裏面側の可動部11の前面部にはマイク5が配置装着されている。
【0020】
スピーカ2は受信信号を音声に変換し出力する。表示器6は送受信時の操作表示及び情報表示を行ない、ファンクションキー7はスピーカ3及びマイク5の切替スイッチ7−1、モード切替キー等のキーであり、ダイヤルキー8はダイヤル操作を行なうキーである。
【0021】
スピーカ3及びマイク5は後に詳述するように、切替スイッチ7−1によりオン/オフすることができる。また、可動部11、11は図2(b)に示すように、ヒンジ機構12、12を中心に互いに反対方向に「く」の字形に屈曲させ、マイク4を前面側の使用者の口元へ近付け、マイク5を裏面側の使用者の口元へ近付け、集音効果を上げることができるようになっている。
【0022】
図3は上記携帯無線電話機1の音声入力部の回路構成を示す図である。図示するように、音声入力部のスピーカ2、スピーカ3、マイク4、マイク5は通話用LSI22を介して通信部21及び制御部20に接続されている。
【0023】
受話信号は通信部21からアンプ22−3で増幅されスピーカ2へ出力され、マイク4から入力された音声入力信号はアンプ22−5で増幅され通信部21へ伝送される。また、受話信号は通信部21からスイッチ22−1を通りアンプ22−3で増幅されスピーカ3へ出力される。マイク5から入力された音声入力信号はアンプ22−6で増幅され、スイッチ22−2を介して通信部21へ伝送される。スイッチ22−1、及びスイッチ22−2のオン/オフ制御は切替スイッチ7−1から制御部20を介して操作される。
【0024】
以上述べたように、上記構成の携帯無線電話機1によれば、固定部10の前裏面にスピーカ2、3を配置装着し、前面側の可動部11の前面にマイク4を配置装着し、裏面側の可動部11の前面にマイク5を配置装着しているので両面より二人で一緒に相手と通話することが可能となる。又、可動部11にマイク4及びマイク5を設けたことにより集音効果も増し使い勝手もよくなる。また、一人で使用する際は切替スイッチ7−1で裏面のスピーカ3及びマイク5をオフすることにより騒音の多い場所でも従来の携帯無線電話機と同様に使用することができる。
【0025】
図4は本発明に係る携帯無線電話機1の他の外観を示す側面図である。図示するように、本携帯無線電話機1では、裏面に適切なスピーカ3及びマイク5を設けると共に、該スピーカ3及びマイク5の前面を遮蔽する遮蔽板30をヒンジ機構31により回動自在に設けている。これにより、携帯無線電話機1を一人で使用する際には、遮蔽板30でスピーカ3及びマイク5の前面を覆うことにより、裏面から受話音が出力されたり、騒音がマイク5に入力されることがない。
【0026】
また、図4に示す携帯無線電話機1において、該携帯無線電話機1の裏面にスピーカ3及びマイク5に替えて音声孔を設け、裏面より音声孔を通して前面に装着されたスピーカ2及びマイク4を共用するようにすれば、両面から通話できる機能を有する携帯無線電話機を廉価で簡単に実現できる。
【0027】
図5は本発明に係る携帯無線電話機の他の外観を示す図であり、図5(a)は遮蔽板により音声孔を閉じた状態を示し、図5(b)は遮蔽板をずらし音声孔を露出した状態を示す。図示するように、本携帯無線電話機1の裏面にスライド自在な遮蔽板41を設け、該遮蔽板41で裏面に装着したスピーカ3及びマイク5の前面を覆ったり開放したりできるように構成している。
【0028】
携帯無線電話機1の裏面には爪部材42が支点軸45を中心に回動自在に取り付けられており、該爪部材42の先端は遮蔽板41に設けられた係止穴43に挿入されるように鉤部になっており、常にバネ(図示せず)等で携帯無線電話機1の裏面を押圧するように付勢されている。また、遮蔽板41の片側には押圧部材47が突出して設けられ、遮蔽板41はコイルバネ44でスピーカ3及びマイク5の前面を開放する方向にスライドするように付勢されている。
【0029】
スピーカ3及びマイク5の前面を遮蔽板41で覆うときは、押圧部材47をスピーカ3及びマイク5に押すことにより、遮蔽板41はコイルバネ44の引っ張り力に抗してスライドし、遮蔽板41がスピーカ3及びマイク5の前面を覆って所定量スライドした状態で、爪部材42の先端鉤部が係止穴43に挿入され、図5(a)に示すように遮蔽板41はスピーカ3及びマイク5の前面を塞いだ状態でロックされる。スピーカ3及びマイク5の前面を開放するには、爪部材42の後端を押圧することにより、爪部材42の先端鉤部が係止穴43から外れ、遮蔽板41はコイルバネ44に引っ張られスライドし、図5(b)に示すようにスピーカ3及びマイク5の前面を開放する。
【0030】
携帯無線電話機1を図5に示す構成とすることにより、図4に示す構成の携帯無線電話機と同様の作用効果が得られる。携帯無線電話機1の裏面にスピーカ3及びマイク5に替えて音声孔を設け、裏面より音声孔を通して前面に装着されたスピーカ2及びマイク4を共用するようにすれば、両面から通話できる機能を有する携帯無線電話機を廉価で簡単に実現できる。
【0031】
以上述べたように本発明の実施の形態例によれば、電話機の前面及び裏面から二人一緒になって相手と通話できるので従来のハンズフリー方式のように受話及び送話レベルを調整する必要もなく、街中の騒音の多い場所でも従来の携帯電話と同様に使用することができる。また、従来の分岐型フォンマイクを接続するような煩わしさも無くなる。
【0032】
【発明の効果】
以上説明したように各請求項に記載の発明によれば、下記のような優れた効果が得られる。
【0033】
請求項1に記載の発明によれば、スピーカ及びマイクの前面を遮蔽する遮蔽板を回動自在又はスライド自在に設けたので、該遮蔽板でスピーカ及びマイクの前面を覆うことにより、騒音や多数の人中で従来の携帯無線電話機と同様に使用することができる。また、電話機の前面及び裏面の両面にスピーカ及びマイクを装着し、電話機の前面及び裏面から同時に通話できる機能を設けたので、二人が一緒になって相手と通話することができる。
【0034】
請求項に記載の発明によれば、電話機の裏面側に装着したスピーカ及びマイクを駆動回路から切離すことができるように構成したので、裏面に装着したスピーカ及びマイクを不動作とし従来の携帯無線電話機と同様に使用することができる。
【0036】
請求項に記載の発明によれば、電話機の裏面側に装着するスピーカ及びマイクに替えて音声が通る音声孔を設け、前面側に装着したスピーカ及びマイクを裏面側と共用して使用するので、両面で同時に通話できる携帯無線電話機を安価に提供できる。
【図面の簡単な説明】
【図1】本発明に係る携帯無線電話機の外観を示す図で、図1(a)は前面図、図1(b)は裏面図である。
【図2】本発明に係る携帯無線電話機の外観を示す図で、図2(a)は可動部を閉じた状態を示す側面図、図2(b)は可動部を開いた状態を示す側面図である。
【図3】本発明に係る携帯無線電話機の音声入力部の回路図である。
【図4】本発明に係る携帯無線電話機の外観を示す側面図である。
【図5】本発明に係る携帯無線電話機の外観を示す図で、図5(a)は遮蔽板でスピーカ及びマスク前面を覆った状態を示す裏面図、図5(b)はスピーカ及びマスク前面を開放した状態を示す裏面図である。
【図6】従来の携帯電話用フォンマイクの使用例を示す図である。
【符号の説明】
1 携帯無線電話機
2 スピーカ
3 スピーカ
4 マイク
5 マイク
6 表示器
7 ファンクションキー
8 ダイヤルキー
9 アンテナ
10 固定部
11 可動部
20 制御部
21 通信部
22 通話用LSI
30 遮蔽板
31 ヒンジ機構
41 遮蔽板
42 爪部材
43 係止穴
44 コイルバネ
45 支点軸
47 押圧部材
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable wireless telephone, and more particularly to a portable wireless telephone having a function of inputting / outputting voice from both front and back sides of a telephone and enabling two persons to talk with each other together using both sides.
[0002]
[Prior art]
Heretofore, this type of wireless portable telephone has been constructed and handled as one-to-one communication between callers. It is also possible to use an unspecified number of people by using a speaker on the receiving side and increasing the sensitivity of the microphone on the transmitting side. In this case, there is an advantage that the caller can talk hands-free without having the handset, and can move freely within a range where the microphone can collect sound.
[0003]
Further, as a system for intervening an interpreter when a language is not communicated between the parties, there is a "phone microphone for a mobile phone which can be used for an interpreter system and a translation system" disclosed in Japanese Patent Laid-Open No. 10-32893. . FIG. 6 is a diagram showing an example of use of the mobile phone microphone.
[0004]
This uses a branch-type phone microphone F having a plurality of phone microphones 65 that can receive a voice through the mobile phone 61 by listening to the receiving voice of the mobile phone 61 from the listening unit 63 and speaking from the microphone unit 64. . The branch phone microphone F is connected to the connection part 62 of the mobile phone 61 so that a call can be made with the interpreter A via the mobile phone 61, and the phone microphone 65A of one of the branch phone microphones F needs to be translated. The interpreter C, who is attached to the person B and receives the other phone microphone 65B, interprets it, and the portable telephone 61 allows the three persons A, B, and C to simultaneously talk.
[0005]
However, the method of talking with an unspecified number of people using the above-mentioned hands-free mobile phone requires a high microphone sound collection sensitivity, and is inevitably weakened to noise. Further, since the speaker unit is also suitable for an unspecified number of people, it is unsuitable when only two people who need to protect privacy use it together.
[0006]
On the other hand, the above-mentioned “phone microphone for a mobile phone that can be used for the interpreting system and the translation system” makes a call by connecting the branch phone microphone F to the connection portion 62 of the mobile phone 61, so that the branch phone microphone is used. It is necessary to carry F at all times. In addition, the wires of the branch type phone microphone F at the time of use are troublesome. In addition, since multiple microphones are used, microphone sensitivity may need to be adjusted.Since the function of operating microphone sensitivity is not a function provided in all mobile phones, it lacks versatility. there were.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and has a function of inputting and outputting audio from both the front and back surfaces of a portable wireless telephone, so that a portable telephone can talk together with another party. An object is to provide a wireless telephone.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a speaker for outputting a reception sound and a microphone for inputting a transmission sound on both front and back surfaces of the telephone, and simultaneously making a call from the front and back surfaces of the telephone. The portable radio telephone has a function capable of performing the operation, and a rotatable or slidable shield plate for shielding the front surface of the speaker and the microphone mounted on the back surface .
[0009]
As described above, the shielding plate that shields the front surface of the speaker and the microphone is rotatably or slidably provided. By covering the front surface of the speaker and the microphone with the shielding plate, noise and a large number of people in the conventional mobile phone can be used. It can be used like a wireless telephone. Also, a speaker and a microphone are mounted on both the front and back sides of the telephone, and a function is provided for simultaneously talking from the front and back sides of the telephone, so that two people can talk with each other together.
[0010]
According to a second aspect of the present invention, in the portable wireless telephone according to the first aspect, a changeover switch is provided in a driving circuit for driving a speaker and a microphone mounted on the back side of the telephone, and the speaker and the microphone are separated from the driving circuit. It is characterized in that it can be separated.
[0011]
As described above, since the speaker and the microphone mounted on the back side of the telephone can be separated from the drive circuit, the speaker and the microphone mounted on the back side are made inoperative and used in the same manner as the conventional portable radio telephone. be able to.
[0014]
According to a third aspect of the present invention, in the portable wireless telephone according to the first aspect, a sound hole through which sound passes is provided in place of a speaker and a microphone mounted on the back side of the telephone, and mounted on the front side through the sound hole. A speaker sound is output, and a transmission sound is input to a microphone mounted on the front side.
[0015]
As described above, the speaker and microphone mounted on the back side of the telephone are provided with sound holes through which sound passes, and the speaker and microphone mounted on the front side are shared with the back side, so that both sides can talk at the same time. A wireless telephone can be provided at low cost.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 are views showing the appearance of a portable radio telephone according to the present invention. FIG. 1 (a) shows a front view, FIG. 1 (b) shows a rear view, and FIGS. (b) is a diagram showing a side view. As shown in the figure, the portable radio telephone 1 according to the present invention includes a fixed part 10 and two movable parts 11 and 11 located below the fixed part 10. The movable parts 11 and 11 are bent around the hinge mechanism in directions opposite to each other.
[0019]
A speaker 2, a display 6, a function key 7, and a dial key 8 are arranged and mounted on the front (front) part of the fixed part 10, and an antenna 9 for transmission and reception is mounted on the upper part. The speaker 3 is arranged and mounted on the back surface of the fixed part 10. The microphone 4 is arranged and mounted on the front part of the movable part 11 on the front side. The microphone 5 is arranged and mounted on the front surface of the movable section 11 on the back side.
[0020]
The speaker 2 converts the received signal into a sound and outputs the sound. The display 6 performs operation display and information display at the time of transmission / reception, the function key 7 is a key such as a switch 7-1 for the speaker 3 and the microphone 5 and a mode switch key, and the dial key 8 is a key for performing a dial operation. is there.
[0021]
The speaker 3 and the microphone 5 can be turned on / off by a changeover switch 7-1 as described later in detail. Further, as shown in FIG. 2 (b), the movable parts 11 and 11 are bent in opposite directions about the hinge mechanisms 12 and 12 into a "-" shape, and the microphone 4 is moved toward the mouth of the user on the front side. The microphone 5 can be brought closer to the mouth of the user on the back side to enhance the sound collection effect.
[0022]
FIG. 3 is a diagram showing a circuit configuration of a voice input unit of the portable wireless telephone 1. As shown in the figure, the speaker 2, the speaker 3, the microphone 4, and the microphone 5 of the voice input unit are connected to the communication unit 21 and the control unit 20 via the call LSI 22.
[0023]
The reception signal is amplified by the amplifier 22-3 from the communication unit 21 and output to the speaker 2, and the voice input signal input from the microphone 4 is amplified by the amplifier 22-5 and transmitted to the communication unit 21. Further, the reception signal is amplified by the amplifier 22-3 from the communication unit 21 through the switch 22-1 and output to the speaker 3. The audio input signal input from the microphone 5 is amplified by the amplifier 22-6 and transmitted to the communication unit 21 via the switch 22-2. The on / off control of the switch 22-1 and the switch 22-2 is operated from the changeover switch 7-1 via the control unit 20.
[0024]
As described above, according to the portable wireless telephone 1 having the above configuration, the speakers 2 and 3 are arranged and mounted on the front and back surfaces of the fixed unit 10, and the microphone 4 is arranged and mounted on the front surface of the movable unit 11 on the front side. Since the microphone 5 is arranged and mounted on the front surface of the movable part 11 on the side, it is possible for two persons to talk with the other party together from both sides. Further, by providing the microphone 4 and the microphone 5 on the movable portion 11, the sound collecting effect is increased and the usability is improved. Further, when using alone, the speaker 3 and the microphone 5 on the back side are turned off by the changeover switch 7-1, so that the mobile phone can be used in a place with much noise similarly to the conventional portable radio telephone.
[0025]
FIG. 4 is a side view showing another appearance of the portable radio telephone 1 according to the present invention. As shown in the figure, in the portable wireless telephone 1, an appropriate speaker 3 and a microphone 5 are provided on the back surface, and a shielding plate 30 for shielding the front surfaces of the speaker 3 and the microphone 5 is provided rotatably by a hinge mechanism 31. I have. Thus, when the portable wireless telephone 1 is used alone, the front face of the speaker 3 and the microphone 5 is covered with the shielding plate 30, so that the reception sound is output from the back side or the noise is input to the microphone 5. There is no.
[0026]
In the portable radio telephone 1 shown in FIG. 4, a voice hole is provided on the back of the mobile radio telephone 1 in place of the speaker 3 and the microphone 5, and the speaker 2 and the microphone 4 mounted on the front through the voice hole from the back are shared. By doing so, a portable wireless telephone having a function of enabling two-way communication can be easily realized at low cost.
[0027]
5A and 5B are views showing another appearance of the portable radio telephone according to the present invention. FIG. 5A shows a state in which the sound hole is closed by a shield plate, and FIG. Is shown. As shown in the drawing, a slidable shield plate 41 is provided on the back surface of the portable wireless telephone 1, and the shield plate 41 is configured to cover or open the front surfaces of the speaker 3 and the microphone 5 mounted on the back surface. I have.
[0028]
A claw member 42 is attached to the back surface of the portable radio telephone 1 so as to be rotatable about a fulcrum shaft 45, and the tip of the claw member 42 is inserted into a locking hole 43 provided in the shielding plate 41. The mobile phone 1 is always urged by a spring (not shown) or the like to press the back surface of the mobile phone 1. A pressing member 47 is provided on one side of the shielding plate 41 so as to protrude therefrom. The shielding plate 41 is urged by a coil spring 44 so as to slide in a direction to open the front surfaces of the speaker 3 and the microphone 5.
[0029]
When the front surfaces of the speaker 3 and the microphone 5 are covered with the shielding plate 41, the pressing member 47 is pressed against the speaker 3 and the microphone 5 so that the shielding plate 41 slides against the tensile force of the coil spring 44, and the shielding plate 41 is moved. In a state in which the speaker 3 and the microphone 5 are slid by a predetermined amount so as to cover the front surfaces thereof, the hooks of the claw members 42 are inserted into the locking holes 43, and as shown in FIG. 5 is locked with the front face closed. To open the front surfaces of the speaker 3 and the microphone 5, the rear end of the claw member 42 is pressed to release the hook at the tip of the claw member 42 from the locking hole 43, and the shielding plate 41 is pulled by the coil spring 44 and slides. Then, the front surfaces of the speaker 3 and the microphone 5 are opened as shown in FIG.
[0030]
When the portable radio telephone 1 has the configuration shown in FIG. 5, the same operation and effect as those of the portable radio telephone having the configuration shown in FIG. 4 can be obtained. If a voice hole is provided on the back surface of the mobile wireless telephone 1 in place of the speaker 3 and the microphone 5, and the speaker 2 and the microphone 4 mounted on the front surface are shared through the voice hole from the back surface, a function that allows a call from both sides is provided. A portable wireless telephone can be easily realized at low cost.
[0031]
As described above, according to the embodiment of the present invention, it is necessary to adjust the receiving and transmitting levels as in the conventional hands-free system since two people can talk to the other party together from the front and back of the telephone. No, it can be used in a noisy place in the city like a conventional mobile phone. Also, the trouble of connecting a conventional branch phone microphone is eliminated.
[0032]
【The invention's effect】
As described above, according to the invention described in each claim, the following excellent effects can be obtained.
[0033]
According to the first aspect of the present invention, the shield plate for shielding the front surfaces of the speaker and the microphone is rotatably or slidably provided. Can be used in the same way as a conventional portable radio telephone. Also, a speaker and a microphone are mounted on both the front and back sides of the telephone, and a function is provided for simultaneously talking from the front and back sides of the telephone, so that two people can talk with each other together.
[0034]
According to the second aspect of the present invention, the speaker and the microphone mounted on the back side of the telephone can be separated from the drive circuit. It can be used like a wireless telephone.
[0036]
According to the third aspect of the present invention, a sound hole through which sound passes is provided in place of the speaker and microphone mounted on the back side of the telephone, and the speaker and microphone mounted on the front side are used in common with the back side. In addition, it is possible to provide a low-cost portable wireless telephone that can simultaneously talk on both sides.
[Brief description of the drawings]
FIG. 1 is a view showing the appearance of a portable radio telephone according to the present invention, wherein FIG. 1 (a) is a front view and FIG. 1 (b) is a rear view.
FIGS. 2A and 2B are views showing the appearance of the portable wireless telephone according to the present invention, wherein FIG. 2A is a side view showing a state in which the movable part is closed, and FIG. 2B is a side view showing a state in which the movable part is opened. FIG.
FIG. 3 is a circuit diagram of a voice input unit of the portable wireless telephone according to the present invention.
FIG. 4 is a side view showing the appearance of the portable wireless telephone according to the present invention.
5A and 5B are diagrams showing the appearance of the portable radio telephone according to the present invention, wherein FIG. 5A is a rear view showing a state in which a speaker and a mask front surface are covered by a shielding plate, and FIG. FIG. 4 is a rear view showing a state in which is opened.
FIG. 6 is a diagram showing an example of use of a conventional mobile phone microphone.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mobile radiotelephone 2 Speaker 3 Speaker 4 Microphone 5 Microphone 6 Display 7 Function key 8 Dial key 9 Antenna 10 Fixed part 11 Movable part 20 Control part 21 Communication part 22 Calling LSI
Reference Signs List 30 shield plate 31 hinge mechanism 41 shield plate 42 claw member 43 locking hole 44 coil spring 45 fulcrum shaft 47 pressing member

Claims (3)

電話機の前面及び裏面の両面に受話音を出力するスピーカ及び送話音を入力するマイクを装着し、該電話機の前面及び裏面から同時に通話できる機能を具備し、前記裏面に装着したスピーカ及びマイクの前面を遮蔽する遮蔽板を回動自在又はスライド自在に設けたことを特徴とする携帯無線電話機。A speaker for outputting a reception sound and a microphone for inputting a transmission sound are mounted on both sides of the front and back sides of the telephone, and a function is provided for simultaneously talking from the front and back sides of the telephone. A portable wireless telephone, wherein a shielding plate for shielding a front surface is provided rotatably or slidably. 請求項1に記載の携帯無線電話機において、
前記電話機の裏面側に装着したスピーカ及びマイクを駆動する駆動回路に切替スイッチを設け、該スピーカ及びマイクを該駆動回路から切離すことができるように構成したことを特徴とする携帯無線電話機。
The mobile wireless telephone according to claim 1,
A portable wireless telephone, wherein a switch is provided in a drive circuit for driving a speaker and a microphone mounted on the back side of the telephone, so that the speaker and the microphone can be separated from the drive circuit.
請求項1に記載の携帯無線電話機において、
前記電話機の裏面側に装着するスピーカ及びマイクに替えて音声が通る音声孔を設け、該音声孔を通して前面側に装着したスピーカの受話音を出力すると共に、前面側に装着したマイクに送話音を入力するようにしたことを特徴とする携帯無線電話機。
The mobile wireless telephone according to claim 1,
An audio hole through which sound passes is provided in place of the speaker and microphone mounted on the back side of the telephone, and a receiving sound of the speaker mounted on the front side is output through the audio hole, and a transmission sound is transmitted to the microphone mounted on the front side. A portable radio telephone characterized by inputting a password.
JP2000101383A 2000-04-03 2000-04-03 Portable wireless telephone Expired - Lifetime JP3568875B2 (en)

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KR100453042B1 (en) * 2002-02-18 2004-10-15 삼성전자주식회사 A portable telephone, control method, and recording medium therefor
US8411880B2 (en) 2008-01-29 2013-04-02 Qualcomm Incorporated Sound quality by intelligently selecting between signals from a plurality of microphones
WO2012060044A1 (en) 2010-11-01 2012-05-10 Necカシオモバイルコミュニケーションズ株式会社 Electronic apparatus

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