BE420452A - - Google Patents
Info
- Publication number
- BE420452A BE420452A BE420452DA BE420452A BE 420452 A BE420452 A BE 420452A BE 420452D A BE420452D A BE 420452DA BE 420452 A BE420452 A BE 420452A
- 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)
- Amplitude Modulation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE497086X | 1936-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE420452A true BE420452A (en(2012)) | 1937-04-30 |
Family
ID=6545125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE420452D BE420452A (en(2012)) | 1936-03-09 | 1937-03-09 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE420452A (en(2012)) |
| FR (1) | FR818788A (en(2012)) |
| GB (1) | GB497086A (en(2012)) |
-
1937
- 1937-03-06 FR FR818788D patent/FR818788A/fr not_active Expired
- 1937-03-09 BE BE420452D patent/BE420452A/xx unknown
- 1937-03-09 GB GB6979/37A patent/GB497086A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR818788A (fr) | 1937-10-04 |
| GB497086A (en) | 1938-12-05 |