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
-
- 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 (xx) | 1963-11-18 |
Family
ID=4340476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE634889A BE634889A (xx) | 1962-07-13 | 1963-07-12 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE634889A (xx) |
| CH (1) | CH394316A (xx) |
| DE (1) | DE1228678B (xx) |
| FR (1) | FR1362913A (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN146303B (xx) * | 1976-03-16 | 1979-04-21 | Plessey Handel Investment Ag | |
| 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 |
| DE3478376D1 (en) * | 1983-08-24 | 1989-06-29 | Toyo Communication Equip | Signal transmission and reception system |
| GB8420210D0 (en) * | 1984-08-09 | 1984-09-12 | British Telecomm | Duplex microwave equipment |
-
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 |
|---|---|
| DE1228678B (de) | 1966-11-17 |
| CH394316A (de) | 1965-06-30 |
| FR1362913A (fr) | 1964-06-05 |