JPH0631797Y2 - 受話増幅回路 - Google Patents
受話増幅回路Info
- Publication number
- JPH0631797Y2 JPH0631797Y2 JP13944888U JP13944888U JPH0631797Y2 JP H0631797 Y2 JPH0631797 Y2 JP H0631797Y2 JP 13944888 U JP13944888 U JP 13944888U JP 13944888 U JP13944888 U JP 13944888U JP H0631797 Y2 JPH0631797 Y2 JP H0631797Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- terminal
- amplifier circuit
- output
- 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 - Fee Related
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13944888U JPH0631797Y2 (ja) | 1988-10-26 | 1988-10-26 | 受話増幅回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13944888U JPH0631797Y2 (ja) | 1988-10-26 | 1988-10-26 | 受話増幅回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0260353U JPH0260353U (US07860544-20101228-C00003.png) | 1990-05-02 |
JPH0631797Y2 true JPH0631797Y2 (ja) | 1994-08-22 |
Family
ID=31402716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13944888U Expired - Fee Related JPH0631797Y2 (ja) | 1988-10-26 | 1988-10-26 | 受話増幅回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0631797Y2 (US07860544-20101228-C00003.png) |
-
1988
- 1988-10-26 JP JP13944888U patent/JPH0631797Y2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0260353U (US07860544-20101228-C00003.png) | 1990-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2734265B2 (ja) | エレクトレット・コンデンサ・マイクロフォン用増幅回路 | |
JP2856744B2 (ja) | ピーク検出回路 | |
KR930022708A (ko) | 다이나믹 바이어스, 저 정지-전류 증폭기 | |
US5148115A (en) | Load connection state detector circuit | |
JP2956853B2 (ja) | 電話音声回路網 | |
KR930002588B1 (ko) | 제한된 전지전압에서 왜곡이 없는 음성신호의 전송이 가능하도록 전화선에 전력을 공급하는 방법 및 장치 | |
JPH0631797Y2 (ja) | 受話増幅回路 | |
US4945314A (en) | Amplifier arrangement with saturation detection | |
JP2000022451A (ja) | 信号処理回路装置 | |
US4649235A (en) | Telephone circuit with a class-B amplifier output stage | |
US4640993A (en) | Telephone subscribers' circuits | |
US4523057A (en) | High gain cascode amplifier with negative feedback | |
US4518829A (en) | Two terminal microphone active load gain regulation circuit | |
US4672664A (en) | Telephone line monitor amplifier | |
JPH05347661A (ja) | 電話装置 | |
JP4227682B2 (ja) | 適応オフセット用集積回路増幅器および方法 | |
JP2659357B2 (ja) | ハンドフリー型電話機 | |
JP3014557B2 (ja) | バッテリー内蔵オーディオ装置及びオーディオ信号増幅回路 | |
JPH03239004A (ja) | 増幅器 | |
JPH0456450A (ja) | 増幅回路 | |
JPH1127786A (ja) | 電源供給インピーダンス変換回路 | |
JPS6336745Y2 (US07860544-20101228-C00003.png) | ||
JPH0750904B2 (ja) | 電話機における電力消費・送話出力回路 | |
JPH09107255A (ja) | 入力信号レベル調整回路 | |
KR890007295Y1 (ko) | 외부 잡음에 의한 음성출력 제어회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |