BE779857A - Systeme de communication multiplex a division de frequence - Google Patents
Systeme de communication multiplex a division de frequenceInfo
- Publication number
- BE779857A BE779857A BE779857A BE779857A BE779857A BE 779857 A BE779857 A BE 779857A BE 779857 A BE779857 A BE 779857A BE 779857 A BE779857 A BE 779857A BE 779857 A BE779857 A BE 779857A
- Authority
- BE
- Belgium
- Prior art keywords
- communication system
- frequency division
- division multiplex
- multiplex communication
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
- H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Relay Systems (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11975071A | 1971-03-01 | 1971-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE779857A true BE779857A (fr) | 1972-06-16 |
Family
ID=22386145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE779857A BE779857A (fr) | 1971-03-01 | 1972-02-25 | Systeme de communication multiplex a division de frequence |
Country Status (9)
Country | Link |
---|---|
US (1) | US3733438A (xx) |
JP (1) | JPS5535903B1 (xx) |
AU (1) | AU458114B2 (xx) |
BE (1) | BE779857A (xx) |
CA (1) | CA962788A (xx) |
DE (1) | DE2208610C2 (xx) |
FR (1) | FR2127877A5 (xx) |
GB (1) | GB1358782A (xx) |
SE (1) | SE382541B (xx) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290104A1 (fr) * | 1974-10-30 | 1976-05-28 | Trt Telecom Radio Electr | Systeme de transmission de donnees par les canaux d'un multiplex a repartition en frequence |
FR2290116A1 (fr) * | 1974-10-31 | 1976-05-28 | Thomson Csf | Circuit de voie pour centre de commutation telephonique et dispositifs de commutation utilisant ce circuit |
FR2290103A1 (fr) * | 1974-10-31 | 1976-05-28 | Thomson Csf | Artere telephonique a points d'acces multiples et reseau comportant de telles arteres |
DE2856752C2 (de) * | 1978-12-29 | 1981-10-01 | Rediffusion AG, Zürich | Verfahren und Vorrichtung für die Frequenzmultiplex-Informationsübertragung |
US4380062A (en) * | 1981-04-22 | 1983-04-12 | Rixon, Inc. | Communication system providing simultaneous two-way transmission |
EP0208425A3 (en) * | 1985-06-13 | 1988-01-13 | Devon County Council | Television sub-carrier transmission |
US4959827A (en) * | 1989-03-30 | 1990-09-25 | Laser Communications, Inc. | Laser signal mixer circuit |
DE19716323A1 (de) * | 1997-04-18 | 1998-10-22 | Alsthom Cge Alcatel | Modulationseinrichtung zur Modulation digitaler Signale |
JP2001053640A (ja) * | 1999-08-11 | 2001-02-23 | Communication Research Laboratory Mpt | 無線通信装置および無線通信方法 |
JP2002009655A (ja) * | 2000-06-23 | 2002-01-11 | Communication Research Laboratory | 双方向無線通信システム及び双方向無線通信方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA411423A (en) * | 1940-01-27 | 1943-03-30 | M. Deerhake Franklin | Frequency conversion system |
US2445664A (en) * | 1946-02-27 | 1948-07-20 | Collins Radio Co | Multifrequency generating and selecting system |
US2602159A (en) * | 1946-06-14 | 1952-07-01 | Collins Radio Co | Frequency modulation generator |
US2849605A (en) * | 1957-05-06 | 1958-08-26 | Westinghouse Electric Corp | Single sideband communication system |
US3049674A (en) * | 1959-04-30 | 1962-08-14 | Jr Robert R Stone | Frequency synthesizer employing at least one frequency drift cancellation loop |
US3176226A (en) * | 1961-11-28 | 1965-03-30 | Bell Telephone Labor Inc | Elimination of frequency shift in suppressed carrier systems |
US3555426A (en) * | 1968-05-29 | 1971-01-12 | Us Navy | Frequency synthesizer |
-
1971
- 1971-03-01 US US00119750A patent/US3733438A/en not_active Ceased
- 1971-09-08 CA CA122,328A patent/CA962788A/en not_active Expired
-
1972
- 1972-02-22 SE SE7202182A patent/SE382541B/xx unknown
- 1972-02-24 GB GB847672A patent/GB1358782A/en not_active Expired
- 1972-02-24 DE DE2208610A patent/DE2208610C2/de not_active Expired
- 1972-02-25 BE BE779857A patent/BE779857A/xx not_active IP Right Cessation
- 1972-02-28 AU AU39440/72A patent/AU458114B2/en not_active Expired
- 1972-02-29 FR FR7206929A patent/FR2127877A5/fr not_active Expired
- 1972-03-01 JP JP2066072A patent/JPS5535903B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE382541B (sv) | 1976-02-02 |
US3733438A (en) | 1973-05-15 |
JPS5535903B1 (xx) | 1980-09-17 |
FR2127877A5 (xx) | 1972-10-13 |
DE2208610C2 (de) | 1981-09-17 |
AU3944072A (en) | 1973-08-30 |
AU458114B2 (en) | 1975-01-31 |
DE2208610A1 (de) | 1972-09-21 |
CA962788A (en) | 1975-02-11 |
GB1358782A (en) | 1974-07-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: WESTERN ELECTRIC CY INC. Effective date: 19840225 |