SE381791B - Monolitiskt integrerbar kopplingsanordning for en talkoppling for centralmatade abonnentapparater - Google Patents
Monolitiskt integrerbar kopplingsanordning for en talkoppling for centralmatade abonnentapparaterInfo
- Publication number
- SE381791B SE381791B SE1266872A SE1266872A SE381791B SE 381791 B SE381791 B SE 381791B SE 1266872 A SE1266872 A SE 1266872A SE 1266872 A SE1266872 A SE 1266872A SE 381791 B SE381791 B SE 381791B
- Authority
- SE
- Sweden
- Prior art keywords
- monolitic
- coupling device
- subscriber devices
- central feed
- number connection
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
- H04M1/585—Anti-side-tone circuits implemented without inductive element
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712148929 DE2148929B2 (de) | 1971-09-30 | 1971-09-30 | Monolithisch integrierbare Schaltungsanordnung für eine Sprechschaltung für zentralgespeiste Teilnehmerstationen mit einem Hörverstärker und einem Mikrofonverstärker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE381791B true SE381791B (sv) | 1975-12-15 |
Family
ID=5821117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1266872A SE381791B (sv) | 1971-09-30 | 1972-09-29 | Monolitiskt integrerbar kopplingsanordning for en talkoppling for centralmatade abonnentapparater |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4843809A (sv) |
| AT (1) | AT321374B (sv) |
| BE (1) | BE789514A (sv) |
| CH (1) | CH548714A (sv) |
| DE (1) | DE2148929B2 (sv) |
| FR (1) | FR2155372A5 (sv) |
| GB (1) | GB1407216A (sv) |
| IT (1) | IT967956B (sv) |
| LU (1) | LU66185A1 (sv) |
| NL (1) | NL7213094A (sv) |
| SE (1) | SE381791B (sv) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071713A (en) * | 1976-12-27 | 1978-01-31 | Northern Telecom Limited | Telephone speech network |
| DE3309822C2 (de) * | 1983-03-18 | 1985-11-14 | Siemens AG, 1000 Berlin und 8000 München | Gabelschaltung für eine zentralgespeiste Teilnehmerstation |
| AT397325B (de) * | 1992-05-25 | 1994-03-25 | Akg Akustische Kino Geraete | Aus zwei operationsverstärkern gebildete schaltung für eine teilnehmersprechstelle |
-
0
- BE BE789514D patent/BE789514A/xx unknown
-
1971
- 1971-09-30 DE DE19712148929 patent/DE2148929B2/de not_active Withdrawn
-
1972
- 1972-08-29 CH CH1270772A patent/CH548714A/xx not_active IP Right Cessation
- 1972-09-18 AT AT798472A patent/AT321374B/de active
- 1972-09-21 GB GB4370672A patent/GB1407216A/en not_active Expired
- 1972-09-27 FR FR7234097A patent/FR2155372A5/fr not_active Expired
- 1972-09-27 NL NL7213094A patent/NL7213094A/xx unknown
- 1972-09-28 JP JP9763272A patent/JPS4843809A/ja active Pending
- 1972-09-28 LU LU66185D patent/LU66185A1/xx unknown
- 1972-09-28 IT IT2980272A patent/IT967956B/it active
- 1972-09-29 SE SE1266872A patent/SE381791B/sv unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2148929B2 (de) | 1974-06-06 |
| JPS4843809A (sv) | 1973-06-25 |
| AT321374B (de) | 1975-03-25 |
| IT967956B (it) | 1974-03-11 |
| LU66185A1 (sv) | 1973-01-17 |
| GB1407216A (en) | 1975-09-24 |
| BE789514A (fr) | 1973-03-29 |
| CH548714A (de) | 1974-04-30 |
| NL7213094A (sv) | 1973-04-03 |
| DE2148929A1 (de) | 1973-04-05 |
| FR2155372A5 (sv) | 1973-05-18 |
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