JPH04183151A - External speaker connecting method for key telephone set - Google Patents

External speaker connecting method for key telephone set

Info

Publication number
JPH04183151A
JPH04183151A JP31329590A JP31329590A JPH04183151A JP H04183151 A JPH04183151 A JP H04183151A JP 31329590 A JP31329590 A JP 31329590A JP 31329590 A JP31329590 A JP 31329590A JP H04183151 A JPH04183151 A JP H04183151A
Authority
JP
Japan
Prior art keywords
external speaker
circuit
key telephone
telephone set
interface
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.)
Pending
Application number
JP31329590A
Other languages
Japanese (ja)
Inventor
Hideo Yamashita
山下 秀雄
Toshikazu Ando
利和 安藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Platforms Ltd
NEC Corp
Original Assignee
NEC Corp
NEC AccessTechnica Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, NEC AccessTechnica Ltd filed Critical NEC Corp
Priority to JP31329590A priority Critical patent/JPH04183151A/en
Publication of JPH04183151A publication Critical patent/JPH04183151A/en
Pending legal-status Critical Current

Links

Landscapes

  • Telephone Set Structure (AREA)

Abstract

PURPOSE:To make it possible to eliminate the necessity of installing an interface circuit for external speaker inside the main unit of a key telephone set by installing an adapter having the same communication protocol between an external speaker and the interface of the key telephone set. CONSTITUTION:Audio and data signal that is sent from the main unit of a key telephone set through data line 1 are fetched in the main adapter, and separated into audio signal and a data signal by an audio control data sending/ receiving circuit 2. The audio signal is sent to a switch circuit 4, and the control signal to a processing circuit 3. Further, the main adapter has the same communication protocol as the key telephone set to communicate with the main unit of the key telephone set. The central processing circuit 3 controls a switch circuit with the aid of received data, and sends the audio signal to an amplifying circuit 5. The amplifying circuit 5 amplifies the audio signal at a setting level, and sends amplified voice, calling sound, or the like to an external speaker 7 connected to the external device connecting interface 6.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、ボタン電話装置の外部スピーカ呼出し、及び
接続方式に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an external speaker calling and connection method for a key telephone device.

従来の技術 従来、この種の外部スピーカは、ボタン電話主装置内に
外部スピーカインタフェース用の特別な回路を設けてい
た。
BACKGROUND OF THE INVENTION Traditionally, external speakers of this type have included special circuitry within the key telephone main unit for the external speaker interface.

発明が解決しようとする課題 上述した従来のボタン電話装置主装置内に、外部スピー
カ用インタフェース回路を付加する方式では、主装置内
に、外部スピーカ用インタフェース回路のスペースが必
要となり、また、接続されるスピーカの台数にも限りが
あった。
Problems to be Solved by the Invention In the method of adding an interface circuit for an external speaker within the main device of the conventional key telephone device described above, space for the interface circuit for the external speaker is required within the main device, and it is difficult to connect the external speaker. There was also a limit to the number of speakers available.

本発明は従来の上記実情に鑑みてなされたものであり、
従って本発明の目的は、従来の技術に内在する上記課題
を解決することを可能としたボタン電話装置の新規な外
部スピーカ接続方式を提供することにある。
The present invention has been made in view of the above-mentioned conventional situation,
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a novel external speaker connection method for a button telephone device that makes it possible to solve the above-mentioned problems inherent in the conventional technology.

課題を解決するための手段 上記目的を達成する為に、本発明に係るボタン電話装置
の外部スピーカ接続方式は、ボタン電話装置において、
外部スピーカを通常のボタン電話機インタフェースに接
続するために、ボタン電話装置と同一の通信プロトコル
を有するアダプタを含み、このアダプタを上記外部スピ
ーカとボタン電話機インタフェース開に介在させる二と
により、ボタン電話装置主装置内に特別な外部スピーカ
用インタフェース回路なしに、上記外部スピーカをボタ
ン電話機インタフェースに接続する手段を有している。
Means for Solving the Problems In order to achieve the above object, an external speaker connection method for a button telephone device according to the present invention includes:
In order to connect the external speaker to the normal button telephone interface, it includes an adapter with the same communication protocol as the button telephone device, and this adapter is interposed between the external speaker and the button telephone interface. There is a means for connecting the external speaker to the button telephone interface without special external speaker interface circuitry within the device.

実施例 次に、本発明を、その好ましい一実施例について図面を
参照して具体的に説明する。
Embodiment Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings.

第1図は本発明に係るアダプタの一実施例を示すブロッ
ク構成図である。
FIG. 1 is a block diagram showing an embodiment of an adapter according to the present invention.

第1図を参照するに、本発明に係るアダプタは、ボタン
電話装置主装置と接続するためのデータ線1を、音声又
は制御データ信号を中央処理回路からの制御により送受
信する音声、制御データ送受信回路2を、プログラムを
実行し、スイッチ回路4と音声、制御データ送受信回路
2とを制御する中央処理回路3を、中央処理回路3から
の制御信号により音声バスの“ON”、“’ OFF“
°を行うスイッチ回FI&4を、音声信号を設定された
レベルに増幅する増幅回路ヲを、外部スピーカ7を接続
するめの外部機器接続インタフェース6とにより構成さ
れている。
Referring to FIG. 1, the adapter according to the present invention connects a data line 1 for connection to the main device of a button telephone device to transmit and receive voice and control data signals under control from a central processing circuit. The circuit 2 executes the program, and the central processing circuit 3 that controls the switch circuit 4 and the audio and control data transmitting/receiving circuit 2 is turned on and off by the control signal from the central processing circuit 3.
The switch circuit FI & 4 is configured to perform the following: an amplifier circuit for amplifying the audio signal to a set level; and an external device connection interface 6 for connecting an external speaker 7.

データ線1により、ボタン電話装置主装置内から送出さ
れてきた音声及びデータ信号は、本アタプタ内に取り込
まれ、音声、制御データ送受信回路2によって音声信号
と制御信号とか分離され、音声信号はスイッチ回路4へ
、制御信号は中央処理回路3に送出される。また、本ア
ダプタは、ボタン電話機と同一の通信プロトコルを有し
ボタン電話装置主装置との通信分行う。中央処理回路3
は、受信したデータによりスイッチ回路4を制御し、音
声信号を増幅回路5に送出する。増幅回路5は、音声信
号を設定されたレベルに増幅し、外部機器接続インタフ
ェース6に接続された外部スピーカ7に音声又は呼び出
し音等を送出する。
The voice and data signals sent from the main unit of the key telephone device through the data line 1 are taken into this adapter, and the voice and control data transmitting/receiving circuit 2 separates the voice signal from the control signal. To the circuit 4, a control signal is sent to the central processing circuit 3. Furthermore, this adapter has the same communication protocol as the key telephone and performs communication with the main device of the key telephone. Central processing circuit 3
controls the switch circuit 4 based on the received data and sends the audio signal to the amplifier circuit 5. The amplification circuit 5 amplifies the audio signal to a set level and sends the audio, ringing tone, etc. to the external speaker 7 connected to the external device connection interface 6.

発明の詳細 な説明したように、本発明に係るボタン電話装置の外部
スピーカ接続方式では、ボタン電話装置において、外部
スピーカを通常のボタン電話機インタフェースに接続す
るために、ボタン電話機と同一の通信プロトコルを有す
るアダプタを、上記外部スピーカとボタン電話機インタ
フェース間に介在させることにより、上記外部スピーカ
をボタン電話装置主装置内に、特別な外部スピーカ用イ
ンタフェース回路なしに、ボタン電話機インタフェース
に接続する手段を有することにより、ボタン電話装置主
装置内に、外部スピーカ用インタフェース回路を必要と
せず、また、ボタン電話機の空きチャネルに外部スピー
カを接続するために、空きチャネルがある限り、接続台
数に限りがなくなるという効果が得られる。
As described in detail, in the external speaker connection method for a button telephone device according to the present invention, the button telephone device uses the same communication protocol as the button telephone device in order to connect the external speaker to a normal button telephone interface. interposing an adapter between the external speaker and the button telephone interface, thereby providing means for connecting the external speaker to the button telephone interface within the key telephone device main unit without a special external speaker interface circuit; This eliminates the need for an interface circuit for an external speaker in the main device of the key telephone device, and since the external speaker can be connected to an empty channel of the button telephone device, there is no limit to the number of devices that can be connected as long as there is an empty channel. is obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係るボタン電話装置の外部スピーカ接
続方式の一実施例を示すブロック構成図である。 1・・・データ線、2・・・音声、データ送受信回路、
3・・・中央処理回路、4・・・スイッチ回路、5・・
・増幅回路、6・・・外部機器接続インタフェース回路
、7・・・外部スピーカ 第1図
FIG. 1 is a block diagram showing an embodiment of an external speaker connection method for a button telephone device according to the present invention. 1...Data line, 2...Audio, data transmission/reception circuit,
3...Central processing circuit, 4...Switch circuit, 5...
・Amplification circuit, 6... External device connection interface circuit, 7... External speaker Fig. 1

Claims (1)

【特許請求の範囲】[Claims] ボタン電話装置において、外部スピーカを通常のボタン
電話機インタフェースに接続するために、ボタン電話機
と同一の通信プロトコイルを有するアダプタを含み、該
アダプタを上記外部スピーカとボタン電話機インタフェ
ース間に介在させることにより、上記外部スピーカを、
ボタン電話装置主装置内に特別な外部スピーカインタフ
ェース回路なしに、ボタン電話装置に接続する手段を含
むことを特徴とするボタン電話装置の外部スピーカ接続
方式。
In a button telephone device, for connecting an external speaker to a conventional button telephone interface, by including an adapter having the same communication protocol as the button telephone and interposing the adapter between the external speaker and the button telephone interface; The external speaker above,
An external speaker connection method for a button telephone device, characterized in that it includes means for connecting to a button telephone device without a special external speaker interface circuit within the key telephone device main device.
JP31329590A 1990-11-19 1990-11-19 External speaker connecting method for key telephone set Pending JPH04183151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31329590A JPH04183151A (en) 1990-11-19 1990-11-19 External speaker connecting method for key telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31329590A JPH04183151A (en) 1990-11-19 1990-11-19 External speaker connecting method for key telephone set

Publications (1)

Publication Number Publication Date
JPH04183151A true JPH04183151A (en) 1992-06-30

Family

ID=18039503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31329590A Pending JPH04183151A (en) 1990-11-19 1990-11-19 External speaker connecting method for key telephone set

Country Status (1)

Country Link
JP (1) JPH04183151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006059855A1 (en) * 2004-11-30 2006-06-08 Jong Sung Lee Network audio speaker system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006059855A1 (en) * 2004-11-30 2006-06-08 Jong Sung Lee Network audio speaker system

Similar Documents

Publication Publication Date Title
US4392243A (en) Transceiver having interphone system
KR100423705B1 (en) A cellulra phone having function of a hearing aid
JPH04183151A (en) External speaker connecting method for key telephone set
JP2501445B2 (en) Loud call circuit
JP3047253B2 (en) Telephone terminal device
JP3289688B2 (en) Telephone equipment
KR200217301Y1 (en) Repeater for internet phone
JPH04354498A (en) Pushbutton telephone set
JPS6085664A (en) Conference telephone set
JPH05136865A (en) Hand-free telephone system
JPS62172853A (en) Anti-side tone circuit
JPS6150451A (en) Telephone with receiver volume switch
JPH04107015A (en) Local radio telephone system for disaster prevention
KR200203370Y1 (en) Double transmitter structure of communication terminal
JPH0649001Y2 (en) Telephone device
JPS59111425A (en) Conference telephone set
JPS60160767A (en) Acoustic coupler
JPH05252253A (en) Telephone set
JPH03132138A (en) communication terminal
JPH04354237A (en) telephone equipment
JPH03198562A (en) Acoustic coupler device
JPS63208345A (en) Acoustic coupler for facsimile equipment
JPH0294948A (en) Receiving circuit
JPS63316548A (en) Acoustic equipment connecting device
KR19980060869U (en) Telephone Handset Adapter (Adapter)