BE795216A - - Google Patents
Info
- Publication number
- BE795216A BE795216A BE127466A BE127466A BE795216A BE 795216 A BE795216 A BE 795216A BE 127466 A BE127466 A BE 127466A BE 127466 A BE127466 A BE 127466A BE 795216 A BE795216 A BE 795216A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7144215A FR2416597A1 (en) | 1971-12-09 | 1971-12-09 | Signal coding system for secret transmission - uses transposition of signal frequency with applied pseudo-random bias using locally generated analog signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE795216A true BE795216A (en) | 1973-08-09 |
Family
ID=9087197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE127466A BE795216A (en) | 1971-12-09 | 1973-02-09 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE795216A (en) |
| FR (1) | FR2416597A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2975375B2 (en) * | 1987-10-27 | 1999-11-10 | セドコム・ネツトワーク・システム・ピーテイーワイ・リミテツド | Passive integrated communication system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1301404A (en) * | 1961-07-06 | 1962-08-17 | Prec Mecanique Labinal | Hertzian link device, in particular for a remote control |
| NL6612935A (en) * | 1966-09-14 | 1968-03-15 | ||
| FR1536799A (en) * | 1966-09-14 | 1968-08-16 | Philips Nv | System for the transmission of information in a prescribed frequency band |
| GB1399365A (en) * | 1971-09-07 | 1975-07-02 | Boeing Co | Apparatus for coding audio signals |
-
1971
- 1971-12-09 FR FR7144215A patent/FR2416597A1/en not_active Withdrawn
-
1973
- 1973-02-09 BE BE127466A patent/BE795216A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2416597A1 (en) | 1979-08-31 |