NL7201298A - METHOD OF INFORMATION TRANSFER. - Google Patents
METHOD OF INFORMATION TRANSFER.Info
- Publication number
- NL7201298A NL7201298A NL7201298A NL7201298A NL7201298A NL 7201298 A NL7201298 A NL 7201298A NL 7201298 A NL7201298 A NL 7201298A NL 7201298 A NL7201298 A NL 7201298A NL 7201298 A NL7201298 A NL 7201298A
- Authority
- NL
- Netherlands
- Prior art keywords
- information transfer
- transfer
- information
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712110468 DE2110468C1 (en) | 1971-03-05 | 1971-03-05 | Procedure for the transfer of information |
Publications (2)
Publication Number | Publication Date |
---|---|
NL7201298A true NL7201298A (en) | 1978-01-31 |
NL159257B NL159257B (en) | 1979-01-15 |
Family
ID=5800567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7201298A NL159257B (en) | 1971-03-05 | 1972-02-01 | SYSTEM FOR INFORMATION TRANSFER, ESPECIALLY IMAGE INFORMATION. |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2110468C1 (en) |
FR (1) | FR2368837A1 (en) |
GB (1) | GB1506559A (en) |
IT (1) | IT1019524B (en) |
NL (1) | NL159257B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509559B1 (en) * | 1981-07-10 | 1986-03-21 | Thomson Csf | METHOD FOR THE DIGITAL TRANSMISSION OF VIDEO IMAGES OF THE TELEVISION TYPE AND TRANSCEIVER THEREFOR |
FR2581197B1 (en) * | 1982-08-11 | 1987-09-04 | Dassault Electronique | METHOD AND DEVICE FOR ELIMINATING THE EFFECT OF INTERFERENCE SIGNALS RELATED TO SWITCHING RECEPTION CHANNELS IN A PULSE RADAR. |
FR2706704B1 (en) * | 1993-06-09 | 1995-07-13 | Alcatel Telspace | Spread spectrum digital transmission system obtained by low frequency pseudo-random coding of useful information and spread spectrum compression method used in such a system. |
GB2288300A (en) * | 1994-04-05 | 1995-10-11 | Christopher Robert Turner | Video surveillance system using spread spectrum radio communication |
GB2308949B (en) * | 1996-01-08 | 1999-11-10 | Ramar Technology Ltd | Remote meter reading system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH311424A (en) * | 1950-04-22 | 1955-11-30 | Gretener Edgar Ing Dr | Method for the secrecy of speech in communication channels. |
US3180927A (en) * | 1961-09-07 | 1965-04-27 | Itt | Cryptosecure transmission system |
FR1444250A (en) * | 1965-05-21 | 1966-07-01 | Csf | Link synchronization device |
-
1971
- 1971-03-05 DE DE19712110468 patent/DE2110468C1/en not_active Expired
-
1972
- 1972-01-17 GB GB220872A patent/GB1506559A/en not_active Expired
- 1972-02-01 NL NL7201298A patent/NL159257B/en not_active IP Right Cessation
- 1972-03-02 IT IT2132572A patent/IT1019524B/en active
- 1972-03-03 FR FR7207453A patent/FR2368837A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2368837A1 (en) | 1978-05-19 |
FR2368837B1 (en) | 1982-04-30 |
GB1506559A (en) | 1978-04-05 |
IT1019524B (en) | 1977-11-30 |
DE2110468C1 (en) | 1978-04-27 |
NL159257B (en) | 1979-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: SIEMENS |