FI924940A - Videokuvan salausmenetelmä ja -järjestelmä - Google Patents
Videokuvan salausmenetelmä ja -järjestelmä Download PDFInfo
- Publication number
- FI924940A FI924940A FI924940A FI924940A FI924940A FI 924940 A FI924940 A FI 924940A FI 924940 A FI924940 A FI 924940A FI 924940 A FI924940 A FI 924940A FI 924940 A FI924940 A FI 924940A
- Authority
- FI
- Finland
- Prior art keywords
- video image
- encryption method
- image encryption
- video
- image
- 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
- H04N7/169—Systems operating in the time domain of the television signal
- H04N7/1696—Systems operating in the time domain of the television signal by changing or reversing the order of active picture signal portions
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI924940A FI92541C (fi) | 1992-10-30 | 1992-10-30 | Videokuvan salausmenetelmä ja -järjestelmä |
DE1993611671 DE69311671T2 (de) | 1992-10-30 | 1993-10-22 | Vorrichtung und Verfahren zur Verschlüsselung eines Videobildes |
EP19930117129 EP0595215B1 (en) | 1992-10-30 | 1993-10-22 | Method and system for the encryption of a video picture |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI924940A FI92541C (fi) | 1992-10-30 | 1992-10-30 | Videokuvan salausmenetelmä ja -järjestelmä |
FI924940 | 1992-10-30 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI924940A0 FI924940A0 (fi) | 1992-10-30 |
FI924940A true FI924940A (fi) | 1994-05-01 |
FI92541B FI92541B (fi) | 1994-08-15 |
FI92541C FI92541C (fi) | 1994-11-25 |
Family
ID=8536135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI924940A FI92541C (fi) | 1992-10-30 | 1992-10-30 | Videokuvan salausmenetelmä ja -järjestelmä |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0595215B1 (fi) |
DE (1) | DE69311671T2 (fi) |
FI (1) | FI92541C (fi) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7006257B1 (en) * | 1999-11-19 | 2006-02-28 | Canon Kabushiki Kaisha | Image processing apparatus, image processing method, and storage medium |
FR2818075B1 (fr) * | 2000-12-13 | 2003-02-07 | Telediffusion De France Tdf | Procede de diffusion de signaux d'image electronique en trame embrouillee |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH682614A5 (fr) | 1990-02-21 | 1993-10-15 | Kudelski Sa | Procédé d'embrouillage et de désembrouillage d'un signal vidéo. |
GB9004901D0 (en) * | 1990-03-05 | 1990-05-02 | Space Communications Sat Tel L | Television scrambler |
-
1992
- 1992-10-30 FI FI924940A patent/FI92541C/fi active
-
1993
- 1993-10-22 DE DE1993611671 patent/DE69311671T2/de not_active Expired - Lifetime
- 1993-10-22 EP EP19930117129 patent/EP0595215B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0595215B1 (en) | 1997-06-18 |
FI924940A0 (fi) | 1992-10-30 |
DE69311671D1 (de) | 1997-07-24 |
DE69311671T2 (de) | 1997-11-27 |
FI92541C (fi) | 1994-11-25 |
EP0595215A1 (en) | 1994-05-04 |
FI92541B (fi) | 1994-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application |