BE415104A - - Google Patents
Info
- Publication number
- BE415104A BE415104A BE415104DA BE415104A BE 415104 A BE415104 A BE 415104A BE 415104D A BE415104D A BE 415104DA BE 415104 A BE415104 A BE 415104A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
- H04J1/045—Filters applied to frequency transposition
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL456270X | 1935-04-30 | ||
| DES0123063 | 1936-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE415104A true BE415104A (ja) |
Family
ID=25998937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE415104D BE415104A (ja) | 1935-04-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2156278A (ja) |
| BE (1) | BE415104A (ja) |
| DE (1) | DE699830C (ja) |
| FR (2) | FR810818A (ja) |
| GB (2) | GB456270A (ja) |
| NL (1) | NL42529C (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE928110C (de) * | 1943-02-12 | 1955-05-23 | Aeg | Vierdraht-Traegerfrequenzuebertragungssystem |
| US2479701A (en) * | 1944-02-07 | 1949-08-23 | William C De Vry | Transmitting system |
| BE459652A (ja) * | 1944-05-08 | 1945-09-29 | ||
| GB615922A (en) * | 1945-05-02 | 1949-01-13 | Philips Nv | Improvements in multiplex carrier-wave telephony |
| US2621325A (en) * | 1946-08-20 | 1952-12-09 | Radio Electr Soc Fr | Plural modulation multiplex system |
| US2574326A (en) * | 1947-12-02 | 1951-11-06 | Rca Corp | Generating groups of currents |
| US7447436B2 (en) * | 1999-12-29 | 2008-11-04 | Forster Energy Llc | Optical communications using multiplexed single sideband transmission and heterodyne detection |
-
0
- NL NL42529D patent/NL42529C/xx active
- BE BE415104D patent/BE415104A/xx unknown
-
1936
- 1936-04-16 GB GB11004/36A patent/GB456270A/en not_active Expired
- 1936-04-25 US US76382A patent/US2156278A/en not_active Expired - Lifetime
- 1936-04-28 DE DE1936D0072613 patent/DE699830C/de not_active Expired
- 1936-04-29 FR FR810818D patent/FR810818A/fr not_active Expired
-
1937
- 1937-06-15 FR FR823061D patent/FR823061A/fr not_active Expired
- 1937-06-16 GB GB16756/37A patent/GB474021A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR810818A (fr) | 1937-03-31 |
| DE699830C (de) | 1940-12-07 |
| GB456270A (en) | 1936-11-05 |
| FR823061A (fr) | 1938-01-13 |
| NL42529C (ja) | |
| GB474021A (en) | 1937-10-25 |
| US2156278A (en) | 1939-05-02 |