JPH024350U - - Google Patents

Info

Publication number
JPH024350U
JPH024350U JP8161988U JP8161988U JPH024350U JP H024350 U JPH024350 U JP H024350U JP 8161988 U JP8161988 U JP 8161988U JP 8161988 U JP8161988 U JP 8161988U JP H024350 U JPH024350 U JP H024350U
Authority
JP
Japan
Prior art keywords
variable gain
speaker
setting
handset
amplifying
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.)
Granted
Application number
JP8161988U
Other languages
Japanese (ja)
Other versions
JPH0523005Y2 (en
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 filed Critical
Priority to JP1988081619U priority Critical patent/JPH0523005Y2/ja
Publication of JPH024350U publication Critical patent/JPH024350U/ja
Application granted granted Critical
Publication of JPH0523005Y2 publication Critical patent/JPH0523005Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案の一実施例による電話機用音量
調整装置の構成を示すブロツク図、第２図は第１
図のマイクロコンピユータの動作を説明するため
のフローチヤートである。 １０……スピーカ、１２……受話器、１６，１
７……可変利得増幅回路、２０……信号／音声源
、３０……マイクロコンピユータ（ＣＰＵ）、５
０……設定器、５４……スピーカ／受話器切替ス
イツチ。 FIG. 1 is a block diagram showing the configuration of a telephone volume adjustment device according to an embodiment of the present invention, and FIG.
3 is a flowchart for explaining the operation of the microcomputer shown in the figure. 10...Speaker, 12...Telephone receiver, 16,1
7...Variable gain amplifier circuit, 20...Signal/audio source, 30...Microcomputer (CPU), 5
0...Setting device, 54...Speaker/handset changeover switch.

Claims (1)

【実用新案登録請求の範囲】 電話機に設けられたスピーカ及び受話器の音量
を調整する装置において、 前記スピーカの信号入力端子に接続され、入力
信号を増幅して該スピーカへ供給すると共に、利
得が可変な第１の可変利得増幅手段と、 前記受話器の信号入力端子に接続され、前記入
力信号を増幅して該受話器へ供給すると共に、利
得が可変な第２の可変利得増幅手段と、 前記利得を設定するための設定手段と、 前記第１及び第２の可変利得増幅手段のどちら
か一方を選択するための選択手段と、 該選択手段、前記第１及び第２の可変利得増幅
手段、及び前記設定手段に結合され、前記選択手
段により選択された前記第１及び第２の可変利得
増幅手段のどちらか一方を前記設定手段により設
定された利得で駆動する制御手段と を有することを特徴とする電話機用音量調整装
置。[Claims for Utility Model Registration] A device for adjusting the volume of a speaker and a handset installed in a telephone, which is connected to a signal input terminal of the speaker, amplifies the input signal and supplies it to the speaker, and has a variable gain. a first variable gain amplifying means connected to the signal input terminal of the handset, amplifying the input signal and supplying it to the handset, and having a variable gain; a second variable gain amplifying means having a variable gain; setting means for setting; selection means for selecting one of the first and second variable gain amplification means; the selection means, the first and second variable gain amplification means, and the selection means for selecting one of the first and second variable gain amplification means; and control means coupled to a setting means and driving either one of the first and second variable gain amplification means selected by the selection means with the gain set by the setting means. Volume adjustment device for telephones.
JP1988081619U 1988-06-22 1988-06-22 Expired - Lifetime JPH0523005Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988081619U JPH0523005Y2 (en) 1988-06-22 1988-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988081619U JPH0523005Y2 (en) 1988-06-22 1988-06-22

Publications (2)

Publication Number Publication Date
JPH024350U true JPH024350U (en) 1990-01-11
JPH0523005Y2 JPH0523005Y2 (en) 1993-06-14

Family

ID=31306395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988081619U Expired - Lifetime JPH0523005Y2 (en) 1988-06-22 1988-06-22

Country Status (1)

Country Link
JP (1) JPH0523005Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11136346A (en) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd Telephone system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167390A (en) * 1984-09-11 1986-04-07 Matsushita Electric Ind Co Ltd Key telephone set
JPS61205058A (en) * 1985-03-08 1986-09-11 Nec Corp Loudspeaking telephone
JPS6214561A (en) * 1985-07-11 1987-01-23 Toa Tokushu Denki Kk Sound volume controller for loudening telephone set

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167390A (en) * 1984-09-11 1986-04-07 Matsushita Electric Ind Co Ltd Key telephone set
JPS61205058A (en) * 1985-03-08 1986-09-11 Nec Corp Loudspeaking telephone
JPS6214561A (en) * 1985-07-11 1987-01-23 Toa Tokushu Denki Kk Sound volume controller for loudening telephone set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11136346A (en) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd Telephone system

Also Published As

Publication number Publication date
JPH0523005Y2 (en) 1993-06-14

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