FR948685A - Système de signalisation - Google Patents
Système de signalisationInfo
- Publication number
- FR948685A FR948685A FR948685DA FR948685A FR 948685 A FR948685 A FR 948685A FR 948685D A FR948685D A FR 948685DA FR 948685 A FR948685 A FR 948685A
- Authority
- FR
- France
- Prior art keywords
- signaling system
- signaling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US441330A US2332912A (en) | 1942-05-01 | 1942-05-01 | Telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR948685A true FR948685A (fr) | 1949-08-08 |
Family
ID=23752472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR948685D Expired FR948685A (fr) | 1942-05-01 | 1947-07-01 | Système de signalisation |
Country Status (3)
Country | Link |
---|---|
US (1) | US2332912A (fr) |
CH (1) | CH281612A (fr) |
FR (1) | FR948685A (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428023A (en) * | 1942-12-15 | 1947-09-30 | Standard Telephones Cables Ltd | Electric impulse receiving and timing arrangement |
FR922489A (fr) * | 1945-02-20 | 1947-06-24 | ||
US2620401A (en) * | 1945-04-04 | 1952-12-02 | Vigren Sten Daniel | Automatic telephone system |
BE470519A (fr) * | 1946-01-26 | |||
FR965255A (fr) * | 1947-04-24 | 1950-09-07 | ||
US2470145A (en) * | 1947-09-25 | 1949-05-17 | American Telephone & Telegraph | Multifrequency signaling system |
US2484226A (en) * | 1947-10-17 | 1949-10-11 | Bell Telephone Labor Inc | Indicating circuit |
US2658189A (en) * | 1948-01-09 | 1953-11-03 | Bell Telephone Labor Inc | Signaling system based on orthogonal functions |
US2636947A (en) * | 1949-12-16 | 1953-04-28 | Bell Telephone Labor Inc | Two-way trunk for pulse conversion systems |
US2682576A (en) * | 1951-01-20 | 1954-06-29 | Irving H Selden | Telephone system |
US2854519A (en) * | 1956-04-18 | 1958-09-30 | Gen Dynamics Corp | Telephone system including line identifying means |
NL252835A (fr) * | 1959-06-23 | |||
US3187107A (en) * | 1960-03-04 | 1965-06-01 | Int Standard Electric Corp | Voice-frequency key-dialing subscriber's station |
US3131264A (en) * | 1960-04-13 | 1964-04-28 | Int Standard Electric Corp | Multi-frequency signalling receivers |
US3140468A (en) * | 1960-05-04 | 1964-07-07 | Gen Signal Corp | Selective calling system |
US3259697A (en) * | 1962-11-28 | 1966-07-05 | Bell Telephone Labor Inc | Telephone signaling system |
DE1232214B (de) * | 1964-12-15 | 1967-01-12 | Standard Elektrik Lorenz Ag | Tonfrequentes Tastwahlverfahren fuer Fernmelde-, insbesondere Fernsprechanlagen |
-
1942
- 1942-05-01 US US441330A patent/US2332912A/en not_active Expired - Lifetime
-
1947
- 1947-07-01 FR FR948685D patent/FR948685A/fr not_active Expired
- 1947-12-08 CH CH281612D patent/CH281612A/de unknown
Also Published As
Publication number | Publication date |
---|---|
CH281612A (de) | 1952-03-15 |
US2332912A (en) | 1943-10-26 |
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