NL6707012A - - Google Patents
Info
- Publication number
- NL6707012A NL6707012A NL6707012A NL6707012A NL6707012A NL 6707012 A NL6707012 A NL 6707012A NL 6707012 A NL6707012 A NL 6707012A NL 6707012 A NL6707012 A NL 6707012A NL 6707012 A NL6707012 A NL 6707012A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55133266A | 1966-05-19 | 1966-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6707012A true NL6707012A (xx) | 1967-11-20 |
Family
ID=24200835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6707012A NL6707012A (xx) | 1966-05-19 | 1967-05-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3459895A (xx) |
| BE (1) | BE698672A (xx) |
| BR (1) | BR6789555D0 (xx) |
| GB (1) | GB1151275A (xx) |
| NL (1) | NL6707012A (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3535472A (en) * | 1967-07-21 | 1970-10-20 | Bell Telephone Labor Inc | Repeatered cable transmission systems utilizing dc to dc converters |
| US3522384A (en) * | 1968-01-16 | 1970-07-28 | Tri State Communication Servic | Constant current operation of central office telephone equipment |
| FR2133272A5 (xx) * | 1971-04-15 | 1972-11-24 | Trt Telecom Radio Electr | |
| US3742450A (en) * | 1971-05-12 | 1973-06-26 | Bell Telephone Labor Inc | Isolating power supply for communication loop |
| US3763323A (en) * | 1971-10-12 | 1973-10-02 | Stromberg Carlson Corp | Current splitting arrangement |
| CA998484A (en) * | 1973-06-26 | 1976-10-12 | Michael C.J. Cowpland | Audio frequency signalling systems for telephone systems |
| US4004110A (en) * | 1975-10-07 | 1977-01-18 | Westinghouse Electric Corporation | Power supply for power line carrier communication systems |
| US4015091A (en) * | 1975-12-05 | 1977-03-29 | Bell Telephone Laboratories, Incorporated | Telephone ringing generators |
| FR2530104B1 (fr) * | 1982-07-12 | 1986-10-24 | Constr Telephoniques | Circuit de couplage de ligne additionnelle a un poste d'intercommunication |
| US4593389A (en) * | 1984-06-28 | 1986-06-03 | Henry Wurzburg | Simultaneous voice and asynchronous data telephone |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535906A (en) * | 1946-06-06 | 1950-12-26 | Dillon & Co W C | Carrier wave communication system |
| US3105125A (en) * | 1959-10-30 | 1963-09-24 | Bell Telephone Labor Inc | Power separation filter |
-
1966
- 1966-05-19 US US551332A patent/US3459895A/en not_active Expired - Lifetime
-
1967
- 1967-05-12 GB GB22159/67A patent/GB1151275A/en not_active Expired
- 1967-05-18 BR BR189555/67A patent/BR6789555D0/pt unknown
- 1967-05-19 BE BE698672D patent/BE698672A/xx unknown
- 1967-05-19 NL NL6707012A patent/NL6707012A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE698672A (xx) | 1967-11-20 |
| GB1151275A (en) | 1969-05-07 |
| US3459895A (en) | 1969-08-05 |
| BR6789555D0 (pt) | 1973-12-26 |