BE563265A - - Google Patents
Info
- Publication number
- BE563265A BE563265A BE563265DA BE563265A BE 563265 A BE563265 A BE 563265A BE 563265D A BE563265D A BE 563265DA BE 563265 A BE563265 A BE 563265A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
-
- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19415/56A GB814141A (en) | 1956-06-22 | 1956-06-22 | Improvements in or relating to telephone ringing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE563265A true BE563265A (en) |
Family
ID=10128972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE563265D BE563265A (en) | 1956-06-22 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE563265A (en) |
| DE (1) | DE1200381B (en) |
| GB (1) | GB814141A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL252052A (en) * | 1959-05-28 | |||
| DE1147990B (en) * | 1959-12-16 | 1963-05-02 | Siemens Ag | Circuit arrangement for receiving audio-frequency Rufstroeme |
| GB956356A (en) * | 1960-07-21 | 1964-04-22 | Standard Telephones Cables Ltd | Improvements in or relating to signalling methods between subscriber's sets and exchage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE935554C (en) * | 1953-06-03 | 1955-11-24 | Automatic Elect Lab | Selective call switching arrangement, especially for subscriber stations in telephone systems |
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0
- BE BE563265D patent/BE563265A/xx unknown
-
1956
- 1956-06-22 GB GB19415/56A patent/GB814141A/en not_active Expired
-
1957
- 1957-06-22 DE DEI13384A patent/DE1200381B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1200381B (en) | 1965-09-09 |
| GB814141A (en) | 1959-05-27 |