FR2378405A1 - Dispositif de " communication secrete " permettant la transmission d'elements d'information inverses et brasses aleatoirement sur une ligne bifilaire ou radioelectrique - Google Patents
Dispositif de " communication secrete " permettant la transmission d'elements d'information inverses et brasses aleatoirement sur une ligne bifilaire ou radioelectriqueInfo
- Publication number
- FR2378405A1 FR2378405A1 FR7701850A FR7701850A FR2378405A1 FR 2378405 A1 FR2378405 A1 FR 2378405A1 FR 7701850 A FR7701850 A FR 7701850A FR 7701850 A FR7701850 A FR 7701850A FR 2378405 A1 FR2378405 A1 FR 2378405A1
- Authority
- FR
- France
- Prior art keywords
- scrambling
- utilises
- converter
- memory output
- electronic circuit
- Prior art date
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
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)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7701850A FR2378405A1 (fr) | 1977-01-24 | 1977-01-24 | Dispositif de " communication secrete " permettant la transmission d'elements d'information inverses et brasses aleatoirement sur une ligne bifilaire ou radioelectrique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7701850A FR2378405A1 (fr) | 1977-01-24 | 1977-01-24 | Dispositif de " communication secrete " permettant la transmission d'elements d'information inverses et brasses aleatoirement sur une ligne bifilaire ou radioelectrique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2378405A1 true FR2378405A1 (fr) | 1978-08-18 |
FR2378405B1 FR2378405B1 (enrdf_load_stackoverflow) | 1980-06-06 |
Family
ID=9185813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7701850A Granted FR2378405A1 (fr) | 1977-01-24 | 1977-01-24 | Dispositif de " communication secrete " permettant la transmission d'elements d'information inverses et brasses aleatoirement sur une ligne bifilaire ou radioelectrique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2378405A1 (enrdf_load_stackoverflow) |
-
1977
- 1977-01-24 FR FR7701850A patent/FR2378405A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2378405B1 (enrdf_load_stackoverflow) | 1980-06-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
HK46781A (en) | Subscriber line/trunk circuit | |
JPS52132723A (en) | Solid state pick up unit | |
JPS5140006A (enrdf_load_stackoverflow) | ||
JPS54129901A (en) | Secret communication system | |
FR2378405A1 (fr) | Dispositif de " communication secrete " permettant la transmission d'elements d'information inverses et brasses aleatoirement sur une ligne bifilaire ou radioelectrique | |
KR880000602B1 (en) | Television sound receiver | |
ES444610A1 (es) | Procedimiento y aparato de codificacion de una senal analo- gica. | |
JPS647813A (en) | Automatic threshold level setting circuit | |
JPS5412250A (en) | Synchronizing circuit for artificial random noise sequence | |
JPS5453903A (en) | Privacy set | |
JPS55120240A (en) | Supervisory signal transmission system | |
JPS5230180A (en) | Electric charge transmission unit | |
JPS5680775A (en) | Integrator | |
CA786435A (en) | Equipment and methods for automatic electronic telephone dialing | |
JPS5321502A (en) | Display unit in electrical machinery and apparatus | |
JPS53118930A (en) | Television receiver | |
JPS524710A (en) | Telephone signal receiving device using a digital filter | |
JPS5316515A (en) | Audio frequency signal* power and digital signal transmission system between main device and terminal unit | |
JPS522208A (en) | Means for genratig signal to switch sending and receiving | |
JPS529313A (en) | Picture signal-electric signal conversion method and device thereof | |
JPS55118282A (en) | Emergency television broadcast system | |
JPS5314516A (en) | Noise reduction device | |
JPS5698951A (en) | Compression and expansion device for digital modulation wave | |
JPS5410604A (en) | Main wire holding circuit for key telephone system | |
JPS5222424A (en) | Noise remover of video signals |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |