BE541150A - Systeme de transmission telephonique rural a ondes porteuses. - Google Patents
Systeme de transmission telephonique rural a ondes porteuses.Info
- Publication number
- BE541150A BE541150A BE541150A BE541150A BE541150A BE 541150 A BE541150 A BE 541150A BE 541150 A BE541150 A BE 541150A BE 541150 A BE541150 A BE 541150A BE 541150 A BE541150 A BE 541150A
- Authority
- BE
- Belgium
- Prior art keywords
- transmission system
- carrier wave
- telephone transmission
- wave telephone
- rural
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US455099A US2932694A (en) | 1954-09-10 | 1954-09-10 | Rural carrier telephone transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
BE541150A true BE541150A (fr) | 1959-08-14 |
Family
ID=23807400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE541150A BE541150A (fr) | 1954-09-10 | 1955-09-08 | Systeme de transmission telephonique rural a ondes porteuses. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2932694A (fr) |
BE (1) | BE541150A (fr) |
DE (1) | DE1040611B (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3073906A (en) * | 1959-06-16 | 1963-01-15 | Bell Telephone Labor Inc | Line concentrating telephone system |
US3475561A (en) * | 1965-09-29 | 1969-10-28 | Superior Continental Corp | Telephone carrier system having selfcontained independently attachable line tap units |
US3491207A (en) * | 1965-10-07 | 1970-01-20 | Superior Continental Corp | Subscriber's two-wire line including carrier telephone communication system |
IL27449A (en) * | 1966-05-11 | 1972-02-29 | Ped Inc | Telephone system plus installations for use by main lines by subscribers |
US3624300A (en) * | 1966-05-11 | 1971-11-30 | Superior Continental Corp | Central office terminal unit for telephone carrier system |
US3639692A (en) * | 1966-05-11 | 1972-02-01 | Superior Continental Corp | Subscriber terminal unit for telephone carrier system |
US3501591A (en) * | 1968-07-05 | 1970-03-17 | Superior Continental Corp | Subscriber carrier for special service applications |
US3649778A (en) * | 1970-09-18 | 1972-03-14 | Stromberg Carlson Corp | Selective ringing in subscriber carrier telephone system |
US3673330A (en) * | 1970-09-18 | 1972-06-27 | Stromberg Carlson Corp | Two-party automatic number identification in subscriber carrier telephone system |
US3700817A (en) * | 1970-10-16 | 1972-10-24 | Itt | Single channel carrier telephone system |
USRE32327E (en) * | 1980-07-07 | 1987-01-06 | Sytek, Inc. | Multiple channel data communication system |
US4365331A (en) * | 1980-07-07 | 1982-12-21 | Sytek Corporation | Multiple channel data communication system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE708943C (de) * | 1934-03-14 | 1941-08-01 | Lorenz Akt Ges C | Verfahren zur UEbertragung von Nachrichten mit Verlagerung der Sprechstroeme auf Teilstrecken der UEbertragungsleitung in verschiedene Frequenzbereiche |
US2202474A (en) * | 1939-01-04 | 1940-05-28 | Bell Telephone Labor Inc | Telephone system |
DE872559C (de) * | 1944-05-12 | 1953-04-02 | Siemens Ag | Mehrfachtraegerfrequentes Nachrichtenuebertragungssystem |
US2499180A (en) * | 1946-06-25 | 1950-02-28 | Union Switch & Signal Co | Communication system |
NL73400C (fr) * | 1948-02-05 | |||
US2654804A (en) * | 1949-05-27 | 1953-10-06 | Bell Telephone Labor Inc | Power line carrier telephone system |
DE914262C (de) * | 1951-04-12 | 1954-06-28 | Philips Nv | Einseitenband-Traegerfrequenz-Fernsprechsystem |
-
1954
- 1954-09-10 US US455099A patent/US2932694A/en not_active Expired - Lifetime
-
1955
- 1955-08-10 DE DEW17280A patent/DE1040611B/de active Pending
- 1955-09-08 BE BE541150A patent/BE541150A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US2932694A (en) | 1960-04-12 |
DE1040611B (de) | 1958-10-09 |
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