CH297204A - Equipement d'un central d'installation téléphonique automatique. - Google Patents
Equipement d'un central d'installation téléphonique automatique.Info
- Publication number
- CH297204A CH297204A CH297204DA CH297204A CH 297204 A CH297204 A CH 297204A CH 297204D A CH297204D A CH 297204DA CH 297204 A CH297204 A CH 297204A
- Authority
- CH
- Switzerland
- Prior art keywords
- equipment
- automatic telephone
- installation center
- telephone installation
- center
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/02—Comparing digital values
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/487—Arrangements for providing information services, e.g. recorded voice services or time announcements
- H04M3/4872—Non-interactive information services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Analysis (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Radar Systems Or Details Thereof (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB297204X | 1947-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH297204A true CH297204A (fr) | 1954-03-15 |
Family
ID=10296046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH297204D CH297204A (fr) | 1947-11-10 | 1948-11-10 | Equipement d'un central d'installation téléphonique automatique. |
Country Status (7)
Country | Link |
---|---|
US (1) | US2683772A (fr) |
BE (1) | BE485757A (fr) |
CH (1) | CH297204A (fr) |
DE (1) | DE905498C (fr) |
FR (1) | FR974803A (fr) |
GB (1) | GB657058A (fr) |
NL (2) | NL81372C (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1048954B (de) * | 1955-08-31 | 1959-01-22 | Ericsson Telefon Ab L M | Elektronisches Register |
GB801960A (en) * | 1956-01-24 | 1958-09-24 | Siemens Edison Swan Ltd | Improvements relating to automatic telephone exchange systems and the like |
DE1067075B (de) * | 1956-01-24 | 1959-10-15 | Siemens Edison Swan Limited, London | Urmrechner für Fernmelde-, insbesondere Fernsprechanlagen |
GB805328A (en) * | 1956-01-24 | 1958-12-03 | Siemens Edison Swan Ltd | Improvements relating to automatic telephone exchange systems |
DE1072273B (de) * | 1957-10-07 | 1959-12-31 | Western Electric Company, Incorporated, New York, 1N. Y. (V. St. A.) | Schaltungsanordnung für elektronische Fernsprechvermitttungsanlagen |
BE626592A (fr) * | 1962-01-02 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2387018A (en) * | 1942-08-05 | 1945-10-16 | Bell Lab Inc | Communication system |
US2361859A (en) * | 1943-11-09 | 1944-10-31 | Bell Telephone Labor Inc | Slide card translator |
US2364446A (en) * | 1944-01-18 | 1944-12-05 | Bell Telephone Labor Inc | Card translator |
US2428024A (en) * | 1945-07-07 | 1947-09-30 | Int Standard Electric Corp | Matched potential electrical control system |
BE486691A (fr) * | 1946-10-31 | |||
US2519688A (en) * | 1946-11-08 | 1950-08-22 | Bell Telephone Labor Inc | Signal code translator |
-
0
- NL NL666604144A patent/NL143251B/xx unknown
- NL NL81372D patent/NL81372C/xx active
- FR FR974803D patent/FR974803A/fr not_active Expired
- BE BE485757D patent/BE485757A/xx unknown
-
1947
- 1947-11-10 GB GB29870/47A patent/GB657058A/en not_active Expired
-
1948
- 1948-11-08 US US58864A patent/US2683772A/en not_active Expired - Lifetime
- 1948-11-10 CH CH297204D patent/CH297204A/fr unknown
-
1949
- 1949-01-20 DE DEP32029A patent/DE905498C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2683772A (en) | 1954-07-13 |
GB657058A (en) | 1951-09-12 |
DE905498C (de) | 1954-03-04 |
FR974803A (fr) | 1951-02-26 |
NL143251B (nl) | |
BE485757A (fr) | |
NL81372C (fr) |
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