BE477225A - - Google Patents
Info
- Publication number
- BE477225A BE477225A BE477225DA BE477225A BE 477225 A BE477225 A BE 477225A BE 477225D A BE477225D A BE 477225DA BE 477225 A BE477225 A BE 477225A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Electrophonic Musical Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB952/40A GB582080A (en) | 1940-01-16 | 1940-01-16 | Improvements in systems for the electric transmission of sound and other waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE477225A true BE477225A (fr) |
Family
ID=9713390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477225D BE477225A (fr) | 1940-01-16 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2406790A (fr) |
| BE (1) | BE477225A (fr) |
| GB (1) | GB582080A (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE480306A (fr) * | 1945-01-03 | |||
| US2513308A (en) * | 1945-09-01 | 1950-07-04 | Standard Telephones Cables Ltd | Electrical time modulated pulse communication system |
| BE471106A (fr) * | 1945-09-29 | |||
| US2468059A (en) * | 1945-10-30 | 1949-04-26 | Standard Telephones Cables Ltd | Pulse time modulated multiplex system |
| BE481282A (fr) * | 1947-03-18 | |||
| US2515452A (en) * | 1947-05-06 | 1950-07-18 | Maxime G Kaufman | Pulse signaling system |
| CA888373A (en) * | 1949-12-21 | 1971-12-14 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Secret signalling system |
| US2761966A (en) * | 1951-05-26 | 1956-09-04 | Ibm | Measuring and indicating system |
| US3048714A (en) * | 1960-06-24 | 1962-08-07 | Itt | Variable pulse width generating system |
-
0
- BE BE477225D patent/BE477225A/xx unknown
-
1940
- 1940-01-16 GB GB952/40A patent/GB582080A/en not_active Expired
-
1941
- 1941-01-16 US US374660A patent/US2406790A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2406790A (en) | 1946-09-03 |
| GB582080A (en) | 1946-11-05 |