JPS59193055U - Telephone transmitter circuit - Google Patents
Telephone transmitter circuitInfo
- Publication number
- JPS59193055U JPS59193055U JP8619183U JP8619183U JPS59193055U JP S59193055 U JPS59193055 U JP S59193055U JP 8619183 U JP8619183 U JP 8619183U JP 8619183 U JP8619183 U JP 8619183U JP S59193055 U JPS59193055 U JP S59193055U
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- circuit
- transmitter circuit
- telephone
- telephone transmitter
- 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
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の実施例を示す回路構成図である。
１・・・送話出力端子、２・・・受話人力端子、ＴＡ・
・・送話用アンプ回路、ＲＡ・・・受話用アンプ回路、
Ａ・・・オペアンプ、Ｓｌ、ＳＰ・・・アナログスイッ
チ、Ｒ３・・・フックスイッチ、Ｔ・・・ハンドセット
の送話器、Ｒ・・・ハンドセットの受話器、ＳＡ・・・
スピーカ用アンプ回路、ＳＰ・・・スピーカー、Ｒ１，
Ｒ２・・・利得調整抵抗、Ｒ３・・・帰還抵抗、ａ、
ｂ・・・ゲート端子、Ｃ・・・制御端子。FIG. 1 is a circuit diagram showing an embodiment of the present invention. 1... Sending output terminal, 2... Receiving human power terminal, TA.
...Talking amplifier circuit, RA...Receiving amplifier circuit,
A... operational amplifier, SL, SP... analog switch, R3... hook switch, T... handset transmitter, R... handset receiver, SA...
Speaker amplifier circuit, SP... speaker, R1,
R2...gain adjustment resistor, R3...feedback resistor, a,
b...Gate terminal, C...Control terminal.
Claims (1)
記送話器との間にアンプ回路が設けられた電話機の送話
回路において、電話機のフックスイッチのＯＮ、ＯＦＦ
に応じて上記アンプ回路の増中度が加減される妻うにし
たことを特徴とする電話機の送話回路。 ２ 電磁型変換器が電磁型受話器である実用新案登録第
１項記載の電話機の送話回路。[Scope of Claim for Utility Model Registration] ■ In the transmitter circuit of a telephone whose transmitter is an electromagnetic converter and an amplifier circuit is provided between the transmitter output terminal and the transmitter, Switch ON/OFF
A transmitter circuit for a telephone set, characterized in that the degree of increase or decrease of the amplifier circuit is adjusted depending on the frequency. 2. The transmitting circuit for a telephone described in Paragraph 1 of the utility model registration, in which the electromagnetic converter is an electromagnetic handset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8619183U JPS59193055U (en) | 1983-06-06 | 1983-06-06 | Telephone transmitter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8619183U JPS59193055U (en) | 1983-06-06 | 1983-06-06 | Telephone transmitter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59193055U true JPS59193055U (en) | 1984-12-21 |
Family
ID=30216132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8619183U Pending JPS59193055U (en) | 1983-06-06 | 1983-06-06 | Telephone transmitter circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59193055U (en) |
-
1983
- 1983-06-06 JP JP8619183U patent/JPS59193055U/en active Pending
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