NL37013C - - Google Patents
Info
- Publication number
- NL37013C NL37013C NL37013DA NL37013C NL 37013 C NL37013 C NL 37013C NL 37013D A NL37013D A NL 37013DA NL 37013 C NL37013 C NL 37013C
- Authority
- NL
- Netherlands
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)
- Optical Communication System (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE401564X | 1933-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL37013C true NL37013C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=6406481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL37013D NL37013C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1933-01-20 |
Country Status (3)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767395C (de) * | 1936-05-03 | 1952-07-31 | Lorenz A G C | Verfahren zur Geheimhaltung von Nachrichten |
| US2476337A (en) * | 1943-01-22 | 1949-07-19 | Sperry Corp | Secret radio communication |
| US2466390A (en) * | 1944-03-30 | 1949-04-05 | Bell Telephone Labor Inc | Secret telegraph system |
| US3887772A (en) * | 1944-06-30 | 1975-06-03 | Bell Telephone Labor Inc | Signal privacy with safety feature |
| US2521690A (en) * | 1945-08-14 | 1950-09-12 | Standard Telephones Cables Ltd | Secrecy preserving signaling system |
| US2556677A (en) * | 1946-05-10 | 1951-06-12 | Bell Telephone Labor Inc | Secret communication system |
| US2660666A (en) * | 1950-01-05 | 1953-11-24 | Westinghouse Electric Corp | Secrecy transmission system |
| US3071752A (en) * | 1958-01-02 | 1963-01-01 | Strasberg Murray | Interference reduction apparatus |
| DE1087637B (de) * | 1959-04-17 | 1960-08-25 | Siemens Ag | Schaltungsanordnung zum Verringern der Erkennungsmoeglichkeit von Klartextimpulsen bei einer Fernschreibanlage fuer verschluesselten Betrieb |
| US3067280A (en) * | 1959-09-15 | 1962-12-04 | Teleprompter Corp | Secret signaling |
-
0
- NL NL37013D patent/NL37013C/xx active
-
1933
- 1933-03-13 GB GB7543/33A patent/GB401564A/en not_active Expired
- 1933-03-30 US US663574A patent/US2083653A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB401564A (en) | 1933-11-16 |
| US2083653A (en) | 1937-06-15 |