BE634889A - - Google Patents
Info
- Publication number
- BE634889A BE634889A BE634889A BE634889A BE634889A BE 634889 A BE634889 A BE 634889A BE 634889 A BE634889 A BE 634889A BE 634889 A BE634889 A BE 634889A BE 634889 A BE634889 A BE 634889A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/165—Ground-based stations employing angle modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH844662A CH394316A (de) | 1962-07-13 | 1962-07-13 | Sende- und Empfangsanordnung für drahtlose Nachrichtenübertragung |
Publications (1)
Publication Number | Publication Date |
---|---|
BE634889A true BE634889A (da) | 1963-11-18 |
Family
ID=4340476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE634889A BE634889A (da) | 1962-07-13 | 1963-07-12 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE634889A (da) |
CH (1) | CH394316A (da) |
DE (1) | DE1228678B (da) |
FR (1) | FR1362913A (da) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO145257C (no) * | 1976-03-16 | 1982-02-10 | Plessey Overseas | Sender/mottager. |
DE2744212C2 (de) * | 1977-09-30 | 1979-11-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Duplex-Sende-Empfangseinrichtung |
DE2744127B2 (de) * | 1977-09-30 | 1979-10-31 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Duplexes Mikrowellenfunksystem |
US4633511A (en) * | 1983-08-24 | 1986-12-30 | Toyo Communication Equipment Co. | Signal transmission and reception system |
GB8420210D0 (en) * | 1984-08-09 | 1984-09-12 | British Telecomm | Duplex microwave equipment |
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1962
- 1962-07-13 CH CH844662A patent/CH394316A/de unknown
- 1962-08-01 DE DEP29945A patent/DE1228678B/de active Pending
-
1963
- 1963-07-11 FR FR69043823A patent/FR1362913A/fr not_active Expired
- 1963-07-12 BE BE634889A patent/BE634889A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1362913A (fr) | 1964-06-05 |
DE1228678B (de) | 1966-11-17 |
CH394316A (de) | 1965-06-30 |