JPH0738657B2 - Cordless telephone equipment - Google Patents
Cordless telephone equipmentInfo
- Publication number
- JPH0738657B2 JPH0738657B2 JP58227178A JP22717883A JPH0738657B2 JP H0738657 B2 JPH0738657 B2 JP H0738657B2 JP 58227178 A JP58227178 A JP 58227178A JP 22717883 A JP22717883 A JP 22717883A JP H0738657 B2 JPH0738657 B2 JP H0738657B2
- Authority
- JP
- Japan
- Prior art keywords
- tone signal
- circuit
- slave unit
- confirmation
- confirmation tone
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
Description
【発明の詳細な説明】 この発明はコードレステレホン装置に係り、特に、親機
の受信動作状態を子機で判定可能にしたものに関する。The present invention relates to a cordless telephone device, and more particularly to a cordless telephone device in which a reception operation state of a master unit can be determined by a slave unit.
コードレステレホンは電話機側に親機を設置するととも
に、１又は２以上の携帯用の子機を設置したものであ
り、子機にはダイヤル信号又は音声信号の送受信をする
送受信回路を設置し、親機には子機からのダイヤル信号
及び音声信号を受信して電話機に入力する受信回路とと
もに、電話機及び子機からの音声信号を子機に送信する
送信回路が設置されている。即ち、コードレステレホン
は、子機と親機の無線による送受信を介在させて子機か
ら所定の電話機を駆動し、他の電話機との通話を可能に
したものである。A cordless telephone has a base unit installed on the telephone side and one or more portable handset units. The handset unit has a transmitter / receiver circuit for transmitting / receiving dial signals or voice signals. The machine is provided with a receiving circuit for receiving a dial signal and a voice signal from the handset and inputting them to the telephone, and a transmitting circuit for transmitting a voice signal from the handset and the handset to the handset. That is, the cordless telephone is a device in which a predetermined telephone is driven from the child device through the wireless transmission / reception of the child device and the parent device to enable communication with another telephone.
しかしながら、このようなコードレステレホンでは、電
話機から離れた状態でその電話機を駆動し、他の電話機
と繋ぐため、子機と親機との連係動作と電話機間が正常
か否かを確認する必要がある。However, in such a cordless telephone, the telephone is driven away from the telephone and connected to another telephone, so it is necessary to confirm the cooperation operation between the child device and the parent device and whether or not the telephone is normal. is there.
従来、子機の操作に応動して電話機が他の電話機と繋っ
たか否かは、子機からの音声が親機で復調され、その信
号を再び子機へ送信して子機で復調し、その音声信号で
確認している。この場合、子機から音声が生じないと、
電話機間が繋がっているか否か、或いは親機が故障して
いるのかを判別することができない。Conventionally, whether or not the telephone is connected to another telephone in response to the operation of the child device, the voice from the child device is demodulated by the parent device, and the signal is transmitted to the child device again to be demodulated by the child device. , I'm confirming with the voice signal. In this case, if there is no sound from the handset,
It is not possible to determine whether or not the telephones are connected or whether or not the parent device is out of order.
そこで、この発明は、親機及び子機に両者の連係動作が
正常に動作をするか否かを容易に確認可能にしたコード
レステレホン装置を提供することを目的とする。Therefore, it is an object of the present invention to provide a cordless telephone device that allows a parent device and a child device to easily confirm whether or not the linking operation between them works normally.
即ち、この発明のコードレステレホン装置は、第１図乃
び第２図に例示するように、電話機に併設された親機
と、この親機を通して通話を行う子機とを備え、これら
親機及び子機のそれぞれに両者側で通信を行う送信回路
及び受信回路を設置したコードレステレホン装置であっ
て、前記子機に設置されて動作を確認すべき信号として
可聴周波数以下の周波数の確認トーン信号を発生し、そ
の確認トーン信号を前記送信回路を通して前記親機に送
るトーン信号発生回路と、このトーン信号発生回路とと
もに前記子機側に設置され、子機側で発生した前記確認
トーン信号を前記送信回路を通して前記親機に送信し、
前記親機で受信された前記確認トーン信号を前記親機側
の送信回路を通して送信された前記確認トーン信号を前
記子機の前記受信回路で受信し、この確認トーン信号を
検出するトーン信号検出回路と、前記子機に設置され、
前記トーン信号検出回路の前記確認トーン信号の検出を
視覚的に表示する表示手段と、前記子機に設置され、前
記トーン信号検出回路の前記確認トーン信号を音声に変
換する音声再生手段とを備え、前記子機で発生させた可
聴周波数以下の周波数を成す前記確認トーン信号を前記
親機に送り、前記確認トーン信号を受信した前記親機か
らその前記確認トーン信号を再び前記子機に送り、子機
側でその確認トーン信号の受信を視覚的に表示するとと
もに、音声を以て告知することを特徴とする。That is, the cordless telephone device of the present invention includes, as illustrated in FIG. 1 and FIG. 2, a master unit provided with a telephone and a slave unit for making a call through the master unit. A cordless telephone device in which a transmitter circuit and a receiver circuit that perform communication on both sides of each of the slave units are installed, and a confirmation tone signal of a frequency lower than an audible frequency is installed as a signal for confirming the operation installed in the slave unit. A tone signal generation circuit that generates and sends the confirmation tone signal to the master unit through the transmission circuit, and the tone signal generation circuit that is installed on the slave unit side together with the tone signal generation circuit and that transmits the confirmation tone signal generated on the slave unit side. Send to the base unit through the circuit,
A tone signal detection circuit that receives the confirmation tone signal received by the parent device through the transmission circuit on the parent device side, receives the confirmation tone signal by the reception circuit of the child device, and detects the confirmation tone signal. And installed on the child machine,
The tone signal detection circuit includes display means for visually displaying detection of the confirmation tone signal, and voice reproduction means installed in the slave unit for converting the confirmation tone signal of the tone signal detection circuit into voice. , Sending the confirmation tone signal having a frequency lower than the audible frequency generated by the slave unit to the master unit, and sending the confirmation tone signal again to the slave unit from the master unit that has received the confirmation tone signal, It is characterized in that the reception side of the confirmation tone signal is visually displayed on the slave unit side, and is announced by voice.
以下、この発明を図面に示した実施例を参照して詳細に
説明する。Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.
第１図ないし第３図はこの発明のコードレステレボン装
置の実施例を示し、第１図はコードレステレホンの構
成、第２図は親機の構成、第３図は子機の構成をそれぞ
れ示している。1 to 3 show an embodiment of a cordless telephone system of the present invention. FIG. 1 shows the configuration of a cordless telephone, FIG. 2 shows the configuration of a master unit, and FIG. 3 shows the configuration of a slave unit. ing.
第１図に示すように、コードレステレホンには電話機２
に隣接して親機４が設置され、この親機４に対して子機
６が設置され、電話機２と親機４とは共通に電話機８で
接続される。As shown in FIG. 1, the cordless telephone has a telephone 2
A parent device 4 is installed adjacent to the parent device 4, a child device 6 is installed for the parent device 4, and the telephone 2 and the parent device 4 are commonly connected by a telephone 8.
子機６には、ダイヤル信号の送信並びに音声信号を送信
する送信回路と、親機４からの音声信号を受信する受信
回路とが内蔵されるとともに、その画面部には、ダイヤ
ル10、マイクロホン12、スピーカ14、表示素子16、送信
用アンテナ18A及び受信用アンテナ18Bが設置されてい
る。The handset 6 has a built-in transmission circuit for transmitting a dial signal and a voice signal, and a reception circuit for receiving a voice signal from the base unit 4, and has a dial 10 and a microphone 12 on its screen. A speaker 14, a display element 16, a transmitting antenna 18A and a receiving antenna 18B are installed.
また、親機４には、子機６からのダイヤル信号及び音声
信号を受信して電話線８に送出する受信回路と、他の電
話機からの音声信号を子機６に送信する送信回路とが内
蔵されるとともに、その前面部には、送信用アンテナ20
A及び受信用アンテナ20Bが設置されている。Further, the base unit 4 has a receiving circuit that receives the dial signal and the voice signal from the handset 6 and sends them to the telephone line 8, and a transmitting circuit that transmits the voice signal from another telephone to the handset 6. It has a built-in antenna and a transmitter antenna 20
A and a receiving antenna 20B are installed.
親機４には第２図に示すように、送受信回路22が設置さ
れ、この送受信回路22では子機６からの送信電波をアン
テナ20Bで受信し、高周波増幅・周波数変更回路24で高
周波増幅するとともに、所定周波数に周波数変更した
後、復調回路26で音声信号に復調し、この復調出力を端
子30から電話機８に送出する。また、ダイヤルトーン信
号は端子30から電話線８に送出され、確認トーン信号又
は電話線８からの音声入力は送信回路部の変調回路32に
加えられる。即ち、搬送周波数を確認トーン信号で周波
数変調した後、高周波増幅回路34で増幅し、その高周波
出力はアンテナ20Aから子機６に向けて送信する。As shown in FIG. 2, a transmitter / receiver circuit 22 is installed in the base unit 4, and the transmitter / receiver circuit 22 receives the radio wave transmitted from the handset 6 by the antenna 20B and amplifies it by the high frequency amplification / frequency change circuit 24. At the same time, after the frequency is changed to a predetermined frequency, the demodulation circuit 26 demodulates it into an audio signal, and the demodulated output is sent from the terminal 30 to the telephone 8. The dial tone signal is sent from the terminal 30 to the telephone line 8, and the confirmation tone signal or the voice input from the telephone line 8 is applied to the modulation circuit 32 of the transmission circuit section. That is, after the carrier frequency is frequency-modulated with the confirmation tone signal, it is amplified by the high-frequency amplifier circuit 34, and the high-frequency output is transmitted from the antenna 20A to the slave unit 6.
子機６には第３図の示すように、送受信回路36が設置さ
れ、この送受信回路36ではアンテナ18Bが受信した高周
波信号を高周波増幅・周波数変更回路38で増幅し、所定
周波数に変更した後、復調回路40で音声信号に復調す
る。この受信回路部で得られた復調出力は、スピーカ14
に加えられて再生されるとともに、第２のトーン信号検
出回路42に加えられる。このトーン信号検出回路42では
復調出力中の確認トーン信号を検出し、この実施例のト
ーン信号検出回路42ではトーン信号を検出した場合に表
示駆動出力を発生し、このトーン信号検出回路42の出力
点と、駆動電圧VCCTが印加される電源端子44との間に、
抵抗46を介して接続された表示素子16、例えば発行ダイ
オードを点灯させる。As shown in FIG. 3, the transmitter / receiver circuit 36 is installed in the slave unit 6, and in the transmitter / receiver circuit 36, the high frequency signal received by the antenna 18B is amplified by the high frequency amplifying / frequency changing circuit 38 and changed to a predetermined frequency. The demodulation circuit 40 demodulates the audio signal. The demodulated output obtained by this receiving circuit is the speaker 14
Is added to the second tone signal detection circuit 42 and is reproduced. This tone signal detection circuit 42 detects the confirmation tone signal during demodulation output, and the tone signal detection circuit 42 of this embodiment generates a display drive output when the tone signal is detected, and outputs the tone signal detection circuit 42. Between the point and the power supply terminal 44 to which the drive voltage V CC T is applied,
The display element 16 connected via the resistor 46, for example, the emitting diode is turned on.
また、送受信回路36の送信回路部にはその入力部にパル
ストーンダイヤラ48、トーン信号発生回路50及び音声増
幅器52が設置されている。パルストーンダイヤラ48はダ
イヤル操作によってパルストーン信号を発生し、トーン
信号発生回路50は確認信号としての確認トーン信号を発
生し、また、マイクロホン12の音声入力は、増幅器52で
増幅される。パルストーン信号、確認トーン信号又は増
幅器52の音声出力は、変調回路54で搬送路を周波数変調
し、その変調出力は高周波増幅回路56で増幅された後、
送信用アンテナ18Aから親機４に向けて送信される。Further, a pulse tone dialer 48, a tone signal generating circuit 50, and a voice amplifier 52 are installed at the input portion of the transmitting circuit portion of the transmitting / receiving circuit 36. The pulse tone dialer 48 generates a pulse tone signal by dial operation, the tone signal generation circuit 50 generates a confirmation tone signal as a confirmation signal, and the voice input of the microphone 12 is amplified by the amplifier 52. The pulse tone signal, the confirmation tone signal, or the audio output of the amplifier 52 is frequency-modulated on the carrier path by the modulation circuit 54, and the modulated output is amplified by the high-frequency amplification circuit 56.
The signal is transmitted from the transmitting antenna 18A to the parent device 4.
このような構成において、動作確認及び通話について説
明する。他の電話機に本電話機を繋ぐ前に、子器６のト
ーン信号発生回路50を動作させて確認トーン信号を発生
させ、変調回路54及び高周波増幅回路56を経て送信用ア
ンテナ18Aから親機４に送信する。親機４は子機６から
の信号電波を受信し、高周波増幅、周波数変更回路24及
び復調回路26を経て確認トーン信号を検出する。この確
認トーン信号は変調回路32で搬送波を変調し、高周波増
幅回路344を経た後、送信用アンテナ20Aから子機６に向
けて送信する。In such a configuration, operation confirmation and call will be described. Before connecting the main telephone to another telephone, the tone signal generating circuit 50 of the slave unit 6 is operated to generate a confirmation tone signal, and the transmitting antenna 18A transfers to the master unit 4 via the modulation circuit 54 and the high frequency amplification circuit 56. Send. The parent device 4 receives the signal radio wave from the child device 6 and detects the confirmation tone signal through the high frequency amplification / frequency change circuit 24 and the demodulation circuit 26. The confirmation tone signal modulates the carrier wave in the modulation circuit 32, passes through the high frequency amplifier circuit 344, and then is transmitted from the transmission antenna 20A to the slave unit 6.
子機６はこの送信電波を受信し、高周波増幅・周波数変
更回路38、復調回路40を経て復調し、その復調出力はス
ピーカ14及びトーン信号検出回路42に加える。トーン信
号検出回路42は確認トーン信号を検出した場合、表示駆
動出力を発生し、発光ダイオード16を点灯させ、確認ト
ーン信号の有無を視覚的に確認することができる。この
場合、音声再生手段としてのスピーカ14には確認トーン
信号が加えられるが、確認トーン信号の周波数を可聴周
波数以下に設定すれば、その確認を聴覚的に行うことが
できる。The handset 6 receives the transmitted radio wave, demodulates it through the high frequency amplification / frequency change circuit 38 and the demodulation circuit 40, and applies the demodulated output to the speaker 14 and the tone signal detection circuit 42. When the tone signal detection circuit 42 detects the confirmation tone signal, it can generate a display drive output, turn on the light emitting diode 16, and visually confirm the presence or absence of the confirmation tone signal. In this case, the confirmation tone signal is applied to the speaker 14 as the sound reproducing means, but if the frequency of the confirmation tone signal is set to the audible frequency or lower, the confirmation can be performed auditorily.
このように子機６から送出した確認トーン信号は親機４
で受信し、それを子機６に送信し、子機６で受信するこ
とにより確認することができ、確認トーン信号の有無で
親機４の動作と、親機４と子機６との連係状態が正常で
あるか否かを判別することができる。The confirmation tone signal transmitted from the child device 6 in this way is transmitted to the parent device 4
It is possible to confirm by receiving with, transmitting to slave unit 6, and receiving with slave unit 6, and the operation of master unit 4 and the cooperation of master unit 4 and slave unit 6 depending on the presence or absence of a confirmation tone signal. It is possible to determine whether the state is normal.
次に、親機４、子機６間が正常である場合には、ダイヤ
ル操作をしてパルストーンダイヤラ48から順次ダイヤル
パルストーン信号を発生させ、子機６からこの信号を親
機４に送信し、親機４はこれを受信して高周波増幅・周
波数変更回路24及び復調回路26を経て検出し、電話機８
に送出する。この結果、相手電話機が呼び出され、その
電話機と電話機２とが接続された場合には、子機６のマ
イクロホン12から音声を入力し、それを親機４に送信
し、親機４の復調回路26から電話線８に送出する。ま
た、相手電話機から送られてくる音声信号は、変調回路
32及び高周波増幅回路34を経て子機６に送信され、子機
６の高周波増幅・周波数変更回路38及び復調回路40を経
てスピーカ14から再生される。この結果、通常の電話機
２を使用した場合と同様に子機６を使用して電話機２か
ら離れた場所で同様の通話を行うことができる。Next, when the distance between the master unit 4 and the slave unit 6 is normal, dial operation is performed to sequentially generate dial pulse tone signals from the pulse tone dialer 48, and the slave unit 6 transmits this signal to the master unit 4. Then, the base unit 4 receives the signal, detects it through the high frequency amplification / frequency change circuit 24 and the demodulation circuit 26, and then the telephone 8
Send to. As a result, when the partner telephone is called and the telephone and the telephone 2 are connected, the voice is input from the microphone 12 of the handset 6 and transmitted to the base unit 4, and the demodulation circuit of the base unit 4 is input. Send from 26 to telephone line 8. In addition, the voice signal sent from the other party's telephone is the modulation circuit.
It is transmitted to the handset 6 through the 32 and the high frequency amplifying circuit 34, and is reproduced from the speaker 14 via the high frequency amplifying / frequency changing circuit 38 and the demodulating circuit 40 of the handset 6. As a result, similarly to the case where the normal telephone 2 is used, it is possible to make the same call at a place away from the telephone 2 by using the cordless handset 6.
この場合、子機６での確認トーン信号の送信及びその検
出は、子機６の離間距離範囲の判別にも利用することが
でき、送信電波が弱い場合等をその表示及び音声出力で
判別し、使用可能区域に子機６を移動して十分な了解度
を維持しながら通話を行うことができる。In this case, the transmission and detection of the confirmation tone signal by the handset 6 can also be used for the determination of the distance range of the handset 6, and when the transmitted radio wave is weak, it is determined by its display and voice output. , It is possible to move the child device 6 to the usable area and make a call while maintaining sufficient intelligibility.
以上説明したように、この発明によれば、親機が正常で
あるか否か、親機と子機の連係状態が正常であるか否か
を表示手段により視覚的に表示するとともに、音声再生
手段により音声を以て告知するので、視覚的及び聴覚的
に容易に判別することができ、その確認の容易化ととも
に、その表示を以て親機に対する子機の使用可能な距離
範囲をも確認することができ、特に、音声再生手段では
確認トーン信号を再生するだけで音声を発するので、新
たな音源を付加する必要もなく、構成が簡単で、目の不
自由な人にも動作の確認を容易に行なうことができる。As described above, according to the present invention, it is possible to visually display by the display means whether or not the master unit is normal and whether or not the link state between the master unit and the slave unit is normal, and the sound reproduction is performed. By means of voice notification by means, it is possible to easily distinguish visually and audibly, and it is also possible to confirm the range of usable distance of the slave unit to the master unit by facilitating the confirmation. In particular, since the voice reproducing means emits the voice only by reproducing the confirmation tone signal, it is not necessary to add a new sound source, the configuration is simple, and the operation can be easily confirmed even by a visually handicapped person. be able to.
第１図はこの発明のコードレステレホン装置の構成を示
す説明図、第２図及び第３図はこの発明のコードレステ
レホン装置の実施例を示すブロック図である。 ２……電話機 ４……親機 ６……子機 14……スピーカ（音声再生手段） 16……表示素子（表示手段） 22、36……送受信回路 42……トーン信号検出回路 50……トーン信号発生回路FIG. 1 is an explanatory view showing the configuration of a cordless telephone device of the present invention, and FIGS. 2 and 3 are block diagrams showing an embodiment of the cordless telephone device of the present invention. 2 ...... Telephone 4 ...... Master device 6 ...... Slave device 14 ...... Speaker (voice reproducing means) 16 ...... Display element (display means) 22, 36 ...... Transmitting / receiving circuit 42 ...... Tone signal detection circuit 50 ...... Tone Signal generation circuit
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｑ 7/38 Continuation of front page (51) Int.Cl. 6 Identification code Office reference number FI technical display area H04Q 7/38
Claims (1)
して行う子機とを備え、これら親機及び子機のそれぞれ
に両者間で通信を行う送信回路及び受信回路を設置した
コードレステレホン装置であって、 前記子機に設置されて動作を確認すべき信号として可聴
周波数以下の周波数の確認トーン信号を発生し、その確
認トーン信号を前記送信回路を通して前記親機に送るト
ーン信号発生回路と、 このトーン信号発生回路とともに前記子機側に設置さ
れ、子機側で発生した前記確認トーン信号を前記送信回
路を通して前記親機に送信し、前記親機で受信された前
記確認トーン信号を前記親機側の送信回路を通して送信
された前記確認トーン信号を前記子機の前記受信回路で
受信し、この確認トーン信号を検出するトーン信号検出
回路と、 前記子機に設置され、前記トーン信号検出回路の前記確
認トーン信号の検出を視覚的に表示する表示手段と、 前記子機に設置され、前記トーン信号検出回路の前記確
認トーン信号を音声に変換する音声再生手段と、 を備え、前記子機で発生させた可聴周波数以下の周波数
を成す前記確認トーン信号を前記親機に送り、前記確認
トーン信号を受信した前記親機からその前記確認トーン
信号を再び前記子機に送り、子機側でその確認トーン信
号の受信を視覚的に表示するとともに、音声を以て告知
することを特徴とするコードレステレホン装置。1. A cordless telephone comprising a base unit installed adjacent to a telephone and a slave unit that performs the master unit, and each of the base unit and the slave unit is provided with a transmission circuit and a reception circuit for communicating between them. A tone signal generation circuit, which is installed in the slave unit, generates a confirmation tone signal having a frequency lower than an audible frequency as a signal for confirming the operation, and sends the confirmation tone signal to the master unit through the transmission circuit. And the tone signal generation circuit is installed on the slave unit side, the confirmation tone signal generated on the slave unit side is transmitted to the master unit through the transmission circuit, and the confirmation tone signal received by the master unit is transmitted. A tone signal detection circuit that receives the confirmation tone signal transmitted through the transmission circuit on the master unit side by the reception circuit of the slave unit and detects the confirmation tone signal; Display means for visually displaying the detection of the confirmation tone signal of the tone signal detection circuit, and voice reproduction for converting the confirmation tone signal of the tone signal detection circuit into voice, which is installed in the slave unit. Means for transmitting the confirmation tone signal having a frequency equal to or lower than the audible frequency generated in the slave unit to the master unit, and again receiving the confirmation tone signal from the master unit receiving the confirmation tone signal. A cordless telephone device characterized by being sent to a slave unit, visually displaying the reception of the confirmation tone signal on the slave unit side, and notifying by voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58227178A JPH0738657B2 (en) | 1983-12-01 | 1983-12-01 | Cordless telephone equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58227178A JPH0738657B2 (en) | 1983-12-01 | 1983-12-01 | Cordless telephone equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60119142A JPS60119142A (en) | 1985-06-26 |
| JPH0738657B2 true JPH0738657B2 (en) | 1995-04-26 |
Family
ID=16856705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58227178A Expired - Lifetime JPH0738657B2 (en) | 1983-12-01 | 1983-12-01 | Cordless telephone equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738657B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2609667B2 (en) * | 1988-02-29 | 1997-05-14 | 株式会社東芝 | Wireless telephone equipment |
| JPH02135950A (en) * | 1988-11-17 | 1990-05-24 | Taiko Denki Seisakusho:Kk | System for cordless telephone set displaying that it is engaged in data transmission |
| JPH032707U (en) * | 1989-05-30 | 1991-01-11 | ||
| JP2610691B2 (en) * | 1990-04-06 | 1997-05-14 | シャープ株式会社 | Communication device |
| JP2567731B2 (en) * | 1990-09-20 | 1996-12-25 | 三洋電機株式会社 | Wireless telephone equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726021A (en) * | 1980-07-24 | 1982-02-12 | Koito Mfg Co Ltd | Deflecting device for rear view mirror etc. |
-
1983
- 1983-12-01 JP JP58227178A patent/JPH0738657B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60119142A (en) | 1985-06-26 |
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