BE653190A - - Google Patents
Info
- Publication number
- BE653190A BE653190A BE653190DA BE653190A BE 653190 A BE653190 A BE 653190A BE 653190D A BE653190D A BE 653190DA BE 653190 A BE653190 A BE 653190A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES87337A DE1219540B (en) | 1963-09-17 | 1963-09-17 | Circuit arrangement for telecommunications switching systems, in particular telephone switching systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE653190A true BE653190A (en) | 1965-03-17 |
Family
ID=7513680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE653190D BE653190A (en) | 1963-09-17 | 1964-09-17 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE653190A (en) |
| CH (1) | CH413923A (en) |
| DE (1) | DE1219540B (en) |
| GB (1) | GB1066974A (en) |
| NL (1) | NL6410792A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1279112B (en) * | 1967-03-01 | 1968-10-03 | Siemens Ag | Circuit arrangement for telecommunication switching systems, in particular telephone systems with two-wire connection |
| CH532348A (en) * | 1970-07-31 | 1972-12-31 | Siemens Ag | Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with four-wire connection through-connection |
| DE2041052B2 (en) * | 1970-08-18 | 1972-03-09 | Siemens Ag | CIRCUIT ARRANGEMENT FOR TELEPHONE SWITCHING SYSTEMS IN PARTICULAR SPECIAL TELEVISION SWITCHING SYSTEMS FOR FOUR-WIRE CONNECTIONS VIA COUPLING AREAS |
-
1963
- 1963-09-17 DE DES87337A patent/DE1219540B/en active Pending
-
1964
- 1964-09-15 CH CH1197864A patent/CH413923A/en unknown
- 1964-09-16 NL NL6410792A patent/NL6410792A/xx unknown
- 1964-09-17 GB GB3794864A patent/GB1066974A/en not_active Expired
- 1964-09-17 BE BE653190D patent/BE653190A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1219540B (en) | 1966-06-23 |
| GB1066974A (en) | 1967-04-26 |
| CH413923A (en) | 1966-05-31 |
| NL6410792A (en) | 1965-03-18 |