JPH0241226B2 - - Google Patents
Info
- Publication number
- JPH0241226B2 JPH0241226B2 JP59148837A JP14883784A JPH0241226B2 JP H0241226 B2 JPH0241226 B2 JP H0241226B2 JP 59148837 A JP59148837 A JP 59148837A JP 14883784 A JP14883784 A JP 14883784A JP H0241226 B2 JPH0241226 B2 JP H0241226B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- line
- voltage
- transistor
- signal
- 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
Links
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 230000005236 sound signal Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
- H04M1/715—Substation extension arrangements using two or more extensions per line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14883784A JPS6128262A (ja) | 1984-07-18 | 1984-07-18 | 電話装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14883784A JPS6128262A (ja) | 1984-07-18 | 1984-07-18 | 電話装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6128262A JPS6128262A (ja) | 1986-02-07 |
| JPH0241226B2 true JPH0241226B2 (OSRAM) | 1990-09-17 |
Family
ID=15461838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14883784A Granted JPS6128262A (ja) | 1984-07-18 | 1984-07-18 | 電話装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6128262A (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0338221U (OSRAM) * | 1989-08-25 | 1991-04-12 |
-
1984
- 1984-07-18 JP JP14883784A patent/JPS6128262A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6128262A (ja) | 1986-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4103118A (en) | Autobalance hybrid circuit | |
| JPS5853556B2 (ja) | 電話ライン回路用増幅回路 | |
| US4527014A (en) | Loudspeaking telephone | |
| US3075045A (en) | Speakerphone | |
| US3708630A (en) | Telephone circuits utilizing active elements | |
| GB2125657A (en) | Loudspeaker telephone system | |
| US3823273A (en) | Subscriber's telephone circuit | |
| JPH0241226B2 (OSRAM) | ||
| US4115658A (en) | Two way telephone amplifier | |
| US4493950A (en) | Loudspeaker telephone | |
| CA1167988A (en) | Line powered transformerless loudspeaking telephone | |
| US3448217A (en) | Telephone sets | |
| KR830001579B1 (ko) | 확성전화기의 2선식 동시통화장치 | |
| Evans | Improving television studio intercommunication systems | |
| JPS59117849A (ja) | 電話機における防騒音回路 | |
| JP2659357B2 (ja) | ハンドフリー型電話機 | |
| JPH0413690Y2 (OSRAM) | ||
| JPS60128762A (ja) | 電話機回路 | |
| JPS64856B2 (OSRAM) | ||
| JPH0815285B2 (ja) | 信号送受回路 | |
| JPS6226216B2 (OSRAM) | ||
| JPS62154839A (ja) | 会議電話装置 | |
| JPH0486054A (ja) | ボタン電話装置 | |
| JPS6141258A (ja) | 電話機 | |
| JPH0357669B2 (OSRAM) |