AT341590B - Schaltungsanordnung fur tastengesteuerte wechselsprech-, gegensprech- oder lautsprecheranlagen - Google Patents
Schaltungsanordnung fur tastengesteuerte wechselsprech-, gegensprech- oder lautsprecheranlagenInfo
- Publication number
- AT341590B AT341590B AT482375A AT482375A AT341590B AT 341590 B AT341590 B AT 341590B AT 482375 A AT482375 A AT 482375A AT 482375 A AT482375 A AT 482375A AT 341590 B AT341590 B AT 341590B
- Authority
- AT
- Austria
- Prior art keywords
- intercom
- key
- circuit arrangement
- controlled
- speaker systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Interface Circuits In Exchanges (AREA)
- Circuit For Audible Band Transducer (AREA)
- Mobile Radio Communication Systems (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2434321A DE2434321C3 (de) | 1974-07-17 | 1974-07-17 | Schaltungsanordnung für tastengesteuerte Wechselsprech-, Gegensprech- oder Lautsprecheranlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA482375A ATA482375A (de) | 1977-06-15 |
| AT341590B true AT341590B (de) | 1978-02-10 |
Family
ID=5920787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT482375A AT341590B (de) | 1974-07-17 | 1975-06-24 | Schaltungsanordnung fur tastengesteuerte wechselsprech-, gegensprech- oder lautsprecheranlagen |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT341590B (OSRAM) |
| BE (1) | BE831415A (OSRAM) |
| CH (1) | CH596721A5 (OSRAM) |
| DE (1) | DE2434321C3 (OSRAM) |
| ES (1) | ES439298A1 (OSRAM) |
| FI (1) | FI61111C (OSRAM) |
| FR (1) | FR2289079A1 (OSRAM) |
| NO (1) | NO141583C (OSRAM) |
| SE (1) | SE7508032L (OSRAM) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2837950C2 (de) * | 1978-08-31 | 1986-11-13 | Neumann Elektronik GmbH, 4330 Mülheim | Vermittlungseinrichtung für eine tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage |
| DE3418484C1 (de) * | 1984-05-18 | 1985-08-29 | Neumann Elektronik GmbH, 4330 Mülheim | Rücksprecheinrichtung für eine Teilnehmerstelle einer tastengesteuerten Wechselsprechanlage mit Linienwahl |
| DE4334906C2 (de) * | 1993-10-13 | 1997-05-07 | Neumann Elektronik Gmbh | Einrichtung zur Übertragung von Ruf- und Belegungszustandssignalen von Wechsel- oder Gegen-Lautsprechanlagen mit Linienwahl über eine Zweidraht-Fernleitung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1512811C3 (de) * | 1967-04-27 | 1984-08-02 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Schaltungsanordnung für die Prüfung der sprechstelleneigenen Einrichtungen in Sprechanlagen |
-
1974
- 1974-07-17 DE DE2434321A patent/DE2434321C3/de not_active Expired
-
1975
- 1975-06-24 AT AT482375A patent/AT341590B/de not_active IP Right Cessation
- 1975-06-25 CH CH827875A patent/CH596721A5/xx not_active IP Right Cessation
- 1975-07-07 FI FI751974A patent/FI61111C/fi not_active IP Right Cessation
- 1975-07-10 ES ES439298A patent/ES439298A1/es not_active Expired
- 1975-07-11 FR FR7522457A patent/FR2289079A1/fr active Granted
- 1975-07-14 SE SE7508032A patent/SE7508032L/xx unknown
- 1975-07-16 BE BE158337A patent/BE831415A/xx not_active IP Right Cessation
- 1975-07-16 NO NO752541A patent/NO141583C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATA482375A (de) | 1977-06-15 |
| DE2434321B2 (de) | 1977-01-20 |
| FI61111C (fi) | 1982-05-10 |
| NO141583C (no) | 1980-04-09 |
| ES439298A1 (es) | 1977-03-01 |
| FI61111B (fi) | 1982-01-29 |
| SE7508032L (sv) | 1976-01-19 |
| FR2289079B1 (OSRAM) | 1982-03-26 |
| NO141583B (no) | 1979-12-27 |
| DE2434321C3 (de) | 1983-12-08 |
| BE831415A (fr) | 1975-11-17 |
| CH596721A5 (OSRAM) | 1978-03-15 |
| NO752541L (OSRAM) | 1976-01-20 |
| FR2289079A1 (fr) | 1976-05-21 |
| FI751974A7 (OSRAM) | 1976-01-18 |
| DE2434321A1 (de) | 1976-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NL7413937A (nl) | Microfoonstelsel. | |
| NL7513921A (nl) | Steunstelsel. | |
| NL7600177A (nl) | Luidsprekerstelsel. | |
| SE7506463L (sv) | Radiotelefonianleggning. | |
| NL7509515A (nl) | Stereofoon geluidstelsel. | |
| NL169943C (nl) | Communicatiestelsel. | |
| BR7502285A (pt) | Sistem telefonico | |
| NL169766C (nl) | Montagebouwsysteem. | |
| SE7507069L (sv) | Snabbtelefonsystem. | |
| NL7514138A (nl) | Luidsprekend telefoonstelsel. | |
| NL7513444A (nl) | Communicatiesysteem. | |
| NL7501953A (nl) | Elektroradiografisch stelsel. | |
| NL7500501A (nl) | Telefoonkiessysteem. | |
| NL7508314A (nl) | Transistorstelsel. | |
| AT341590B (de) | Schaltungsanordnung fur tastengesteuerte wechselsprech-, gegensprech- oder lautsprecheranlagen | |
| SE414215B (sv) | Elektroniskt tendsystem. | |
| NL7514573A (nl) | Zelf-centrerend beperkingsbusstelsel. | |
| DK138298B (da) | Programlagerstyret telekommunikationsanlæg. | |
| NL7500996A (nl) | Beveiligingsschakeling. | |
| ES213321Y (es) | Rejilla de altavoz. | |
| NO139841C (no) | Telekommunikasjonssystem. | |
| NL7416853A (nl) | Facsimilestelsel. | |
| SE409537B (sv) | Telefonapparatsystem | |
| SE7504481L (sv) | Likstromstyrkretsar. | |
| NL7506396A (nl) | Tijd-multiplex stelsel. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |