NZ232005A - Video signal line scrambling: part of scrambling code on one line - Google Patents
Video signal line scrambling: part of scrambling code on one lineInfo
- Publication number
- NZ232005A NZ232005A NZ232005A NZ23200590A NZ232005A NZ 232005 A NZ232005 A NZ 232005A NZ 232005 A NZ232005 A NZ 232005A NZ 23200590 A NZ23200590 A NZ 23200590A NZ 232005 A NZ232005 A NZ 232005A
- Authority
- NZ
- New Zealand
- Prior art keywords
- scrambling
- line
- video signal
- signal line
- smart card
- 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
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
Abstract
The process of the invention consists of including series of access messages (ECM1, ECM2) when emitting composite video signals, unscrambling the resulting signals using a smart card reader, whereby the smart card comprises encoded digital data, and utilizing an interactive process for the identification of a digital signature.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8817092A FR2641152B1 (en) | 1988-12-23 | 1988-12-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ232005A true NZ232005A (en) | 1991-11-26 |
Family
ID=9373355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ232005A NZ232005A (en) | 1988-12-23 | 1990-01-04 | Video signal line scrambling: part of scrambling code on one line |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0375539B1 (en) |
JP (1) | JP2911595B2 (en) |
AT (1) | ATE118950T1 (en) |
BR (1) | BR8907275A (en) |
CA (1) | CA2006459A1 (en) |
DE (1) | DE68921316T2 (en) |
ES (1) | ES2070188T3 (en) |
FR (1) | FR2641152B1 (en) |
MX (1) | MX172194B (en) |
NZ (1) | NZ232005A (en) |
WO (1) | WO1990007845A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9003325D0 (en) * | 1990-02-14 | 1990-04-11 | Enfranchise Sixty Ltd | Apparatus and method for controlling access to broadcast signals |
FR2703552A1 (en) * | 1993-03-31 | 1994-10-07 | Philips Electronics Nv | Method and apparatus for scrambling and descrambling a specific television program |
FR2750554B1 (en) * | 1996-06-28 | 1998-08-14 | Thomson Multimedia Sa | CONDITIONAL ACCESS SYSTEM AND CHIP CARD ALLOWING SUCH ACCESS |
IL123554A (en) * | 1998-03-04 | 2003-01-12 | Nds Ltd | Key delivery in a secure broadcasting system |
EP1246465A3 (en) | 1998-07-20 | 2010-09-08 | Thomson Licensing | Navigation system for a multichannel digital television system |
FR2804272B1 (en) * | 2000-01-25 | 2003-08-01 | Tonna Electronique | SYSTEM FOR CONTROLLING A USER'S ACCESS TO VIDEO PROGRAMS, TRANSCODER, DECODER AND METHOD FOR CONTROLLING ACCESS TO SUCH A SYSTEM |
AU2001256645A1 (en) | 2000-05-22 | 2001-12-03 | Nds Limited | Dynamically shifting control word |
EP2230845A1 (en) * | 2009-03-16 | 2010-09-22 | Irdeto Access B.V. | Providing control words to a receiver |
CN111310220B (en) * | 2020-03-12 | 2023-07-28 | 四川大学 | Color image encryption method based on novel three-dimensional vector decomposition |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1253616A (en) * | 1982-07-29 | 1989-05-02 | Robert W. Field | Secure coding and decoding system and method for television program signals |
GB2143352A (en) * | 1983-07-15 | 1985-02-06 | Philips Electronic Associated | Authorising coded signals |
GB2151886A (en) * | 1983-12-21 | 1985-07-24 | British Broadcasting Corp | Conditional-access broadcast transmission |
-
1988
- 1988-12-23 FR FR8817092A patent/FR2641152B1/fr not_active Expired - Fee Related
-
1989
- 1989-12-08 BR BR898907275A patent/BR8907275A/en not_active IP Right Cessation
- 1989-12-08 WO PCT/FR1989/000636 patent/WO1990007845A1/en unknown
- 1989-12-08 JP JP2501072A patent/JP2911595B2/en not_active Expired - Lifetime
- 1989-12-19 EP EP89403552A patent/EP0375539B1/en not_active Expired - Lifetime
- 1989-12-19 ES ES89403552T patent/ES2070188T3/en not_active Expired - Lifetime
- 1989-12-19 DE DE68921316T patent/DE68921316T2/en not_active Expired - Fee Related
- 1989-12-19 AT AT89403552T patent/ATE118950T1/en not_active IP Right Cessation
- 1989-12-21 MX MX018840A patent/MX172194B/en unknown
- 1989-12-21 CA CA002006459A patent/CA2006459A1/en not_active Abandoned
-
1990
- 1990-01-04 NZ NZ232005A patent/NZ232005A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE68921316D1 (en) | 1995-03-30 |
FR2641152B1 (en) | 1996-05-10 |
CA2006459A1 (en) | 1990-06-23 |
MX172194B (en) | 1993-12-07 |
ES2070188T3 (en) | 1995-06-01 |
JP2911595B2 (en) | 1999-06-23 |
EP0375539B1 (en) | 1995-02-22 |
JPH03504313A (en) | 1991-09-19 |
ATE118950T1 (en) | 1995-03-15 |
EP0375539A1 (en) | 1990-06-27 |
DE68921316T2 (en) | 1995-08-31 |
WO1990007845A1 (en) | 1990-07-12 |
FR2641152A1 (en) | 1990-06-29 |
BR8907275A (en) | 1991-03-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4605846A (en) | Optically readable card carrying digital data, and an access control system using said card | |
CA2181705A1 (en) | Television signal activated interactive smart card system | |
IL107624A (en) | Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto | |
BR9201106A (en) | SECURITY SYSTEM FOR TRANSMISSION OF A SIGNAL, METHODO TO REPLACE A SUBSTITUABLE SECURITY MODULE, DECODER TO RECEIVE AND SEPARATE A SIGNAL, SUBSTITUTABLE SECURITY MODULE TO DECODIFY A SIGNAL, SIGNATURE, APPLY, SUBSCRIBER INFORMATION, DECODER TO DECODE A KEY AND COMPOSITE DATA PACKAGE | |
TW283287B (en) | ||
EP0437616A4 (en) | Ic card system having function of confirming destroyed data | |
EP0663756A3 (en) | Illumination device, image reading apparatus having the device and information processing system having the apparatus. | |
EP0647924A3 (en) | Encryption key control system for mail processing system having data center verification. | |
NZ232005A (en) | Video signal line scrambling: part of scrambling code on one line | |
EP0342803A3 (en) | Method and apparatus for recording and reproducing picture information, and recording medium | |
EP0653724A3 (en) | Fingerprint image cutout processing device for tenprint card. | |
ZA907305B (en) | A method and a device for the protected transmission of data | |
GB2086181A (en) | Method and system for secure transmission and reception of video information particularly for television | |
WO1999043120A8 (en) | Information access control system and method | |
EP0620653A3 (en) | Devices for recording and/or reproducing or transmitting and/or receiving compressed data. | |
ES2106586T3 (en) | BARREL TREATMENT INSTALLATION WITH AN INTEGRATED CODE READER. | |
WO1999023830A3 (en) | Arrangement comprising insertion means for the identification of an information packet stream carrying encoded digital data by means of additional information | |
EP0618732A3 (en) | An image and code data compression apparatus. | |
EP0309195A3 (en) | Improved code reader | |
AU5016396A (en) | Method and device for decoding bar codes | |
EP0907143A3 (en) | System for providing security information disposed on an article | |
HK118594A (en) | Method and arrangement for the synchronisation of digital information signals | |
EP0445290A4 (en) | Adaptive data ciphering/deciphering apparatus and data communication system employing said apparatus | |
GB9209539D0 (en) | Data system,reader unit for reading an inductively powered token,and such token | |
EP0347893A3 (en) | Programmable memory for an encoding system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RENW | Renewal (renewal fees accepted) |