BE440881A - - Google Patents
Info
- Publication number
- BE440881A BE440881A BE440881DA BE440881A BE 440881 A BE440881 A BE 440881A BE 440881D A BE440881D A BE 440881DA BE 440881 A BE440881 A BE 440881A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- 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
- H04B1/54—Circuits using the same frequency for two directions of communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/20—Repeater circuits; Relay circuits
- H04L25/24—Relay circuits using discharge tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US303890A US2213105A (en) | 1939-11-10 | 1939-11-10 | Radio control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440881A true BE440881A (US08197722-20120612-C00042.png) | 1941-04-30 |
Family
ID=23174136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440881D BE440881A (US08197722-20120612-C00042.png) | 1939-11-10 | 1941-03-15 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2213105A (US08197722-20120612-C00042.png) |
| BE (1) | BE440881A (US08197722-20120612-C00042.png) |
| FR (1) | FR867829A (US08197722-20120612-C00042.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2589158A (en) * | 1948-04-02 | 1952-03-11 | Bell Telephone Labor Inc | Mobile-radio and wire system |
-
1939
- 1939-11-10 US US303890A patent/US2213105A/en not_active Expired - Lifetime
-
1940
- 1940-11-28 FR FR867829D patent/FR867829A/fr not_active Expired
-
1941
- 1941-03-15 BE BE440881D patent/BE440881A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR867829A (fr) | 1941-11-29 |
| US2213105A (en) | 1940-08-27 |
