BE384321A - - Google Patents
Info
- Publication number
- BE384321A BE384321A BE384321DA BE384321A BE 384321 A BE384321 A BE 384321A BE 384321D A BE384321D A BE 384321DA BE 384321 A BE384321 A BE 384321A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier
-
- 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
- H04B7/12—Frequency diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE682789T | 1930-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE384321A true BE384321A (US06486227-20021126-C00005.png) |
Family
ID=6320309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE384321D BE384321A (US06486227-20021126-C00005.png) | 1930-11-23 |
Country Status (5)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2532719A (en) * | 1944-10-16 | 1950-12-05 | John H Homrighous | Dimensional radio communication system |
| US2979706A (en) * | 1956-07-02 | 1961-04-11 | Avery H Simon | Radio warning system |
| US3462688A (en) * | 1967-04-10 | 1969-08-19 | William E Abel | Communication system for classroom use and the like |
-
0
- NL NL37403D patent/NL37403C/xx active
- BE BE384321D patent/BE384321A/xx unknown
-
1930
- 1930-11-23 DE DE1930682789D patent/DE682789C/de not_active Expired
-
1931
- 1931-11-23 GB GB32358/31A patent/GB370351A/en not_active Expired
- 1931-11-23 US US576850A patent/US1982771A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE682789C (de) | 1939-10-21 |
| US1982771A (en) | 1934-12-04 |
| NL37403C (US06486227-20021126-C00005.png) | |
| GB370351A (en) | 1932-04-07 |
