FR2449375B1 - - Google Patents
Info
- Publication number
- FR2449375B1 FR2449375B1 FR7904038A FR7904038A FR2449375B1 FR 2449375 B1 FR2449375 B1 FR 2449375B1 FR 7904038 A FR7904038 A FR 7904038A FR 7904038 A FR7904038 A FR 7904038A FR 2449375 B1 FR2449375 B1 FR 2449375B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7904038A FR2449375A1 (fr) | 1979-02-16 | 1979-02-16 | Systeme de cryptage et de decryptage d'un signal analogique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7904038A FR2449375A1 (fr) | 1979-02-16 | 1979-02-16 | Systeme de cryptage et de decryptage d'un signal analogique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2449375A1 FR2449375A1 (fr) | 1980-09-12 |
| FR2449375B1 true FR2449375B1 (US08197722-20120612-C00093.png) | 1984-03-23 |
Family
ID=9222098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7904038A Granted FR2449375A1 (fr) | 1979-02-16 | 1979-02-16 | Systeme de cryptage et de decryptage d'un signal analogique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2449375A1 (US08197722-20120612-C00093.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4837827A (en) * | 1984-06-29 | 1989-06-06 | Siemens Aktiengesellschaft | Method for transmitting two independent types of information and device for implementing the method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340327A (en) * | 1971-04-19 | 1973-12-12 | Plessey Co Ltd | Coding arrangements |
| GB1397412A (en) * | 1971-05-28 | 1975-06-11 | Gen Electric Co Ltd | Communication systems and apparatus for use in such systems |
| US4100374A (en) * | 1977-04-11 | 1978-07-11 | Bell Telephone Laboratories, Incorporated | Uniform permutation privacy system |
| GB1553027A (en) * | 1977-05-12 | 1979-09-19 | Marconi Co Ltd | Message signal scrambling apparatus |
-
1979
- 1979-02-16 FR FR7904038A patent/FR2449375A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2449375A1 (fr) | 1980-09-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |