JP2792184B2 - Wireless telephone equipment - Google Patents
Wireless telephone equipmentInfo
- Publication number
- JP2792184B2 JP2792184B2 JP2070873A JP7087390A JP2792184B2 JP 2792184 B2 JP2792184 B2 JP 2792184B2 JP 2070873 A JP2070873 A JP 2070873A JP 7087390 A JP7087390 A JP 7087390A JP 2792184 B2 JP2792184 B2 JP 2792184B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- mobile phone
- frequency
- cable
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、サービスエリア内に配置された基地局と極
超短波帯の無線周波でもって同時双方向交信を行い、無
線回線制御局、自動車電話交換局を介して一般加入電話
等と交話が可能な無線電話に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention performs simultaneous bidirectional communication with a base station located in a service area by using a radio frequency in a very high frequency band, a radio line control station, and a mobile telephone. The present invention relates to a radio telephone capable of communicating with a general subscriber telephone or the like via an exchange.
［従来の技術］ 電池の消耗等を考慮して空中線電力が2Wの携帯無線電
話（他に0.6W、1Wタイプもある）を、無線電話機に配設
される外付増幅器接続用コネクタにプラグ付ケーブルを
接続することにより外付増幅器と繋いで5Wの移動体運用
を行えるようにした無線電話装置が知られている。[Prior art] A portable wireless telephone with 2W antenna power (other types are also 0.6W and 1W types) is plugged into an external amplifier connection connector provided in the wireless telephone in consideration of battery consumption etc. 2. Description of the Related Art There is known a wireless telephone device which can perform a 5 W mobile operation by connecting a cable to an external amplifier.
［発明が解決しようとする課題］ ア．移動体運用時には、2Wの高周波電流をプラグ付ケー
ブルを介して外付増幅器に送り込んでいるので、携帯電
話機やプラグ付ケーブルから漏れる高周波電流の絶対量
が多い。[Problems to be solved by the invention] a. At the time of mobile operation, since the high-frequency current of 2 W is sent to the external amplifier via the cable with the plug, the absolute amount of the high-frequency current leaking from the mobile phone or the cable with the plug is large.
イ．移動体運用時にも携帯電話機は2Wの高周波電力を発
生しているので、携帯電話機の消費電力は、移動体運用
時も携帯運用時も変わらない。I. Since the mobile phone generates 2 W of high-frequency power during mobile operation, the power consumption of the mobile phone remains the same during mobile operation and mobile operation.
本発明の目的は、移動体運用時における携帯電話機や
プラグ付ケーブル等から漏れる高周波電流の絶対量の低
減、および移動体運用時における携帯電話機の消費電力
の低減を図った無線電話装置の提供にある。An object of the present invention is to provide a wireless telephone device that reduces the absolute amount of high-frequency current leaking from a mobile phone or a cable with a plug during operation of a mobile body and reduces the power consumption of the mobile phone during operation of the mobile body. is there.
［課題を解決するための手段］ 上記目的を達成するため、本発明は、送話信号を送信
用無線周波の高周波電流にする信号変換部、および携帯
電話機の作動を管理する制御回路を有し、送受異なった
無線周波でもって同時送受話を行う携帯電話機と、該携
帯電話機のコネクタにプラグ付ケーブルを繋いで移動体
運用を可能にする外付増幅器とからなる無線電話装置に
おいて、前記送話信号の前記送信用無線周波への周波数
変換を行う周波数変換部を外付増幅器内に設け、前記プ
ラグ付ケーブルの接続を電気的に検知する接続検知器を
携帯電話機内に設け、移動体運用時には、携帯電話機側
の前記信号変換部の作動を前記接続検知器が停止させる
とともに、前記送話信号がプラグ付ケーブルを介して前
記外付増幅器に送られ外付増幅器側で前記送信用無線周
波に変換されることを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the present invention includes a signal conversion unit for converting a transmission signal into a high-frequency current of a transmission radio frequency, and a control circuit for managing the operation of the mobile phone. A wireless telephone device comprising: a mobile phone that performs simultaneous transmission and reception using different radio frequencies; and an external amplifier that enables a mobile body to operate by connecting a cable with a plug to a connector of the mobile phone. A frequency conversion unit for performing frequency conversion of the signal to the transmission radio frequency is provided in an external amplifier, and a connection detector for electrically detecting the connection of the cable with a plug is provided in a mobile phone. The connection detector stops the operation of the signal conversion unit on the mobile phone side, and the transmission signal is transmitted to the external amplifier via a cable with a plug, and the transmission signal is transmitted on the external amplifier side. Converted to credit radio frequency.
［作用および発明の効果］ 移動体運用時には、送話信号のまま外付増幅器へ送っ
ているので、少なくとも送信用無線周波の高周波電流が
携帯電話機やプラグ付ケーブルから漏れることは無い。[Operation and Effect of the Invention] At the time of mobile operation, since the transmission signal is transmitted to the external amplifier as it is, at least the high-frequency current of the transmission radio frequency does not leak from the mobile phone or the cable with the plug.
移動体運用時には、接続検知器が携帯電話機側の信号
変換部の作動を停止させるので、信号変換部に作動用電
力を通電する必要が無くなり、移動体運用時に携帯電話
機の消費電流を減らすことができる。At the time of mobile operation, the connection detector stops the operation of the signal conversion unit on the mobile phone side, so there is no need to supply operating power to the signal conversion unit, and the current consumption of the mobile phone during mobile operation can be reduced. it can.
送信用無線周波と異なる周波数の送話信号を外付増幅
器へ送り込んでいるので、外付増幅器が回り込みによる
発振を極めて起こし難い。Since a transmission signal having a frequency different from the transmission radio frequency is sent to the external amplifier, the external amplifier is extremely unlikely to cause oscillation due to wraparound.
［実施例］ 本発明を第１図に示す実施例に基づき説明する。Example The present invention will be described based on an example shown in FIG.
無線電話装置Ｃは、単体で携帯運用が可能な携帯電話
機Ｄと、携帯電話機Ｄのブースター接続用コネクタ11に
プラグ付同軸ケーブル10を繋いで移動体運用を可能にす
る車両装着ブースターＥとからなる。The wireless telephone device C is composed of a mobile phone D that can be operated by itself and a vehicle-mounted booster E that enables mobile operation by connecting a coaxial cable 10 with a plug to a booster connection connector 11 of the mobile phone D. .
携帯電話機Ｄは、送信用無線周波Tf（925.025MHz〜93
9.975MHz）、受信用無線周波Rf（870.025MHz〜884.975M
Hz）を使用することにより、基地局、無線回線制御局、
自動車電話交換局（いずれも図示せず）を介して一般加
入電話等と同時交話が行えるようになっている。The mobile phone D has a transmission radio frequency Tf (925.025 MHz to 93
9.975MHz), receiving radio frequency Rf (870.025MHz ~ 884.975M)
Hz), base stations, radio network controllers,
Simultaneous conversation with a general subscriber telephone or the like can be performed via a mobile telephone exchange (both not shown).
12は携帯電話機Ｄを単体で携帯運用する際に使用する
空中線、13は無線周波帯域外を減衰させるチェビシェフ
形の送受分波器、31はTf−Rf＝55MHzを満足させるよう
に、780.0025MHz〜794.975MHzを25KHz間隔で得るための
周波数シンセサイザ、39は電池、41は送話器、55は受話
器である。12 is an antenna used when the mobile phone D is used alone as a portable unit, 13 is a Chebyshev type duplexer that attenuates outside the radio frequency band, 31 is 780.0025 MHz to satisfy Tf-Rf = 55 MHz. A frequency synthesizer for obtaining 794.975 MHz at 25 KHz intervals, 39 is a battery, 41 is a transmitter, and 55 is a receiver.
制御回路32は、待受け、着呼、チャンネル切換え、終
話等の携帯電話機Ｄの作動を管理する。The control circuit 32 manages operations of the mobile phone D, such as standby, incoming calls, channel switching, and call termination.
57は受信用無線周波Rfを増幅する高周波増幅、47は送
話信号Tsを送信用無線周波Tfに変換する信号変換部、19
は送受分波器、33はケーブル10の接続を電気的に検知す
ると信号変換部47、電力増幅器40、高周波増幅57への給
電を停止して、送話信号Tsから送信用無線周波Tfへの変
換をブースターＥ側で行うようにする接続検知器であ
る。57 is a high-frequency amplifier for amplifying the reception radio frequency Rf, 47 is a signal converter for converting the transmission signal Ts to the transmission radio frequency Tf, 19
Is a transmission / reception splitter, and 33 electrically stops the power supply to the signal conversion unit 47, the power amplifier 40, and the high frequency amplification 57 when electrically detecting the connection of the cable 10, and converts the transmission signal Ts to the transmission radio frequency Tf. This is a connection detector that performs conversion on the booster E side.
ブースターＥは、自動車のトランクに設置され、送受
分波器14、15、送受信ブースター46、56を備える。The booster E is installed in the trunk of the automobile, and includes transmission / reception splitters 14 and 15 and transmission / reception boosters 46 and 56.
送受分波器14は、受信ブースター56へ送信電力が入り
込まないように、送受各６段のチェビシェフ形の略煙草
箱大のフィルタである。送信ブースター46は上記数mW〜
数百mW程度の送信出力を空中線電力5Wにするためのもの
であり、受信ブースター56は、ケーブル10等の損失を補
償するためのものである。The transmission / reception splitter 14 is a Chebyshev-shaped, substantially cigarette-box-sized filter having six transmission / reception stages so that transmission power does not enter the reception booster 56. The transmission booster 46 is above several mW ~
The transmission output of about several hundred mW is used to make the antenna power 5 W, and the reception booster 56 is used to compensate for the loss of the cable 10 and the like.
ブースターＥのコネクタ16には低損失同軸ケーブル17
が接続され、更に、自動車のトランクの空中線18に繋が
っている。A low-loss coaxial cable 17 is connected to the connector 16 of the booster E.
, And further to the antenna 18 of the trunk of the car.
ブースターＥにおいて、15は受信用無線周波Rfと送話
信号Tsとを１本のケーブル10で伝送するための送受分波
器、48は信号変換部47と同等の機能を有する周波数変換
部、24は検出用電気信号ｐを携帯電話機Ｄ側に送る抵抗
である。In the booster E, 15 is a transmission / reception splitter for transmitting the reception radio frequency Rf and the transmission signal Ts via one cable 10, 48 is a frequency conversion unit having the same function as the signal conversion unit 47, 24 Is a resistor for sending the detection electric signal p to the mobile phone D side.
つぎに、無線電話装置Ｃの効果を述べる。 Next, effects of the wireless telephone device C will be described.
（あ）移動体運用時には、接続検知器33が信号変換部4
7、電力増幅器40、高周波増幅57への給電を停止するの
で、電池39の消費電力の低減が著しく図れ、従来のもの
より長時間運用が可能であり、移動運用時の全体の電力
効率を向上させることができる。(A) During operation of the mobile unit, the connection detector 33 is connected to the signal conversion unit 4
7.The power supply to the power amplifier 40 and the high-frequency amplifier 57 is stopped, so the power consumption of the battery 39 can be significantly reduced, and the operation can be performed for a longer time than the conventional one, improving the overall power efficiency during mobile operation. Can be done.
（い）移動体運用時において、信号変換部47の作動が止
まっているので、携帯電話機Ｄの筐体やケーブル10か
ら、送信用無線周波の高周波電流の輻射は全く起こらな
い。また、送話信号Tsの漏洩に関しては、信号レベルが
低く、周波数の低いのでほとんど問題にならない。(I) Since the operation of the signal conversion unit 47 is stopped during the operation of the mobile body, no radio-frequency current of the transmission radio frequency is emitted from the housing or the cable 10 of the mobile phone D at all. Also, regarding the leakage of the transmission signal Ts, there is almost no problem because the signal level is low and the frequency is low.
（う）送受分波器15、19は取り扱う周波数が著しく異な
るので、簡単な構成で良い。(C) Since the transmission / reception splitters 15 and 19 handle remarkably different frequencies, a simple configuration is sufficient.
（え）回り込みによる送信ブースター46の発振や、高周
波出力が送受分波器15を通り抜けて受信ブースター56を
破壊させるという恐れはほとんど無い。(E) There is almost no fear that the transmission booster 46 oscillates due to the wraparound or that the high-frequency output passes through the transmission / reception splitter 15 and destroys the reception booster 56.
第１図は本発明の実施例を説明するための携帯電話およ
びブースターのブロック図である。 図中10…プラグ付同軸ケーブル（プラグ付ケーブル）、
11…ブースター接続用コネクタ（コネクタ）、33…接続
検知器、47…信号変換部、48…周波数変換部、Ｃ…無線
電話装置、Ｄ…携帯電話機、Ｅ…車両装着ブースター
（外付増幅器）、Tf…送信用無線周波、Ts…送話信号、
Rf…受信用無線周波FIG. 1 is a block diagram of a mobile phone and a booster for explaining an embodiment of the present invention. 10 in the figure: Coaxial cable with plug (cable with plug),
11 ... Booster connection connector (connector), 33 ... Connection detector, 47 ... Signal converter, 48 ... Frequency converter, C ... Wireless telephone device, D ... Mobile phone, E ... Vehicle-mounted booster (external amplifier), Tf: radio frequency for transmission, Ts: transmission signal,
Rf: Radio frequency for reception
Claims (1)
する信号変換部、および携帯電話機の作動を管理する制
御回路を有し、送受異なった無線周波でもって同時送受
話を行う携帯電話機と、 該携帯電話機のコネクタにプラグ付ケーブルを繋いで移
動体運用を可能にする外付増幅器とからなる無線電話装
置において、 前記送話信号の前記送信用無線周波への周波数変換を行
う周波数変換部を外付増幅器内に設け、 前記プラグ付ケーブルの接続を電気的に検知する接続検
知器を携帯電話機内に設け、 移動体運用時には、携帯電話機側の前記信号変換部の作
動を前記接続検知器が停止させるとともに、前記送話信
号がプラグ付ケーブルを介して前記外付増幅器に送られ
外付増幅器側で前記送信用無線周波に変換されることを
特徴とする無線電話装置。1. A portable telephone having a signal conversion unit for converting a transmission signal into a high-frequency current of a transmission radio frequency, and a control circuit for managing the operation of the portable telephone, and performing simultaneous transmission and reception at different radio frequencies. A wireless telephone device comprising: an external amplifier that enables a mobile body to operate by connecting a cable with a plug to a connector of the mobile phone; and a frequency converter that performs frequency conversion of the transmission signal to the transmission radio frequency. Part is provided in an external amplifier, a connection detector for electrically detecting the connection of the cable with the plug is provided in the mobile phone, and when the mobile unit is operated, the operation of the signal converter on the mobile phone side is detected by the connection detection. Wherein the transmitter is stopped and the transmission signal is transmitted to the external amplifier via a cable with a plug and converted to the transmission radio frequency on the external amplifier side. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070873A JP2792184B2 (en) | 1990-03-20 | 1990-03-20 | Wireless telephone equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070873A JP2792184B2 (en) | 1990-03-20 | 1990-03-20 | Wireless telephone equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03270421A JPH03270421A (en) | 1991-12-02 |
| JP2792184B2 true JP2792184B2 (en) | 1998-08-27 |
Family
ID=13444109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2070873A Expired - Lifetime JP2792184B2 (en) | 1990-03-20 | 1990-03-20 | Wireless telephone equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2792184B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU675111B2 (en) * | 1993-02-05 | 1997-01-23 | Kabushiki Kaisha Toshiba | Wireless telephone |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718406A1 (en) * | 1987-06-02 | 1988-12-15 | Schloemann Siemag Ag | Method for braking rolled bars and an approach roller table for cooling beds for carrying out the method |
| JPH01220919A (en) * | 1988-02-29 | 1989-09-04 | Toshiba Corp | Radio telephone set |
| JPH0296448A (en) * | 1988-10-03 | 1990-04-09 | Nec Corp | Attachable and detachable type automobile telephone set |
-
1990
- 1990-03-20 JP JP2070873A patent/JP2792184B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03270421A (en) | 1991-12-02 |
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