AU7236291A - Apparatus and method for controlling access to broadcast signals - Google Patents
Apparatus and method for controlling access to broadcast signalsInfo
- Publication number
- AU7236291A AU7236291A AU72362/91A AU7236291A AU7236291A AU 7236291 A AU7236291 A AU 7236291A AU 72362/91 A AU72362/91 A AU 72362/91A AU 7236291 A AU7236291 A AU 7236291A AU 7236291 A AU7236291 A AU 7236291A
- Authority
- AU
- Australia
- Prior art keywords
- broadcast signals
- controlling access
- access
- controlling
- broadcast
- 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.)
- Abandoned
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
- H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
- H04H60/93—Wired transmission systems
- H04H60/94—Telephonic networks
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9003325 | 1990-02-14 | ||
GB909003325A GB9003325D0 (en) | 1990-02-14 | 1990-02-14 | Apparatus and method for controlling access to broadcast signals |
Publications (1)
Publication Number | Publication Date |
---|---|
AU7236291A true AU7236291A (en) | 1991-09-03 |
Family
ID=10670966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU72362/91A Abandoned AU7236291A (en) | 1990-02-14 | 1991-02-14 | Apparatus and method for controlling access to broadcast signals |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0515448A1 (en) |
AU (1) | AU7236291A (en) |
GB (2) | GB9003325D0 (en) |
WO (1) | WO1991012693A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5835864A (en) * | 1991-10-03 | 1998-11-10 | Thomson Consumer Electronics S.A. | Method and apparatus for customizing a device with a smart card |
JPH07283809A (en) * | 1994-04-08 | 1995-10-27 | Mitsubishi Corp | Ciphering key system |
US5719938A (en) * | 1994-08-01 | 1998-02-17 | Lucent Technologies Inc. | Methods for providing secure access to shared information |
US6324592B1 (en) | 1997-02-25 | 2001-11-27 | Keystone Aerospace | Apparatus and method for a mobile computer architecture and input/output management system |
US6636833B1 (en) | 1998-03-25 | 2003-10-21 | Obis Patents Ltd. | Credit card system and method |
US6324526B1 (en) | 1999-01-15 | 2001-11-27 | D'agostino John | System and method for performing secure credit card purchases |
JP2002541601A (en) | 1999-04-13 | 2002-12-03 | オービス・パテンツ・リミテッド | Person-to-person, person-to-company, company-to-person, and company-to-company financial transaction systems |
US6804357B1 (en) | 2000-04-28 | 2004-10-12 | Nokia Corporation | Method and system for providing secure subscriber content data |
EP1265202A1 (en) | 2001-06-04 | 2002-12-11 | Orbis Patents Limited | Business-to-business commerce using financial transaction numbers |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2132860B (en) * | 1982-12-21 | 1987-03-18 | British Broadcasting Corp | Conditional -access broadcast transmission |
US4613901A (en) * | 1983-05-27 | 1986-09-23 | M/A-Com Linkabit, Inc. | Signal encryption and distribution system for controlling scrambling and selective remote descrambling of television signals |
US4634808A (en) * | 1984-03-15 | 1987-01-06 | M/A-Com Government Systems, Inc. | Descrambler subscriber key production system utilizing key seeds stored in descrambler |
US4696034A (en) * | 1984-10-12 | 1987-09-22 | Signal Security Technologies | High security pay television system |
CA1244090A (en) * | 1984-10-26 | 1988-11-01 | General Instrument Corporation | Cryptographic system for direct broadcast satellite network |
GB8509390D0 (en) * | 1985-04-12 | 1985-05-15 | Paytel Ltd | Video transmission system |
ZA862839B (en) * | 1985-05-24 | 1986-12-30 | Scientific Atlanta | Method and apparatus for scrambling and descrambling television signals |
GB2214677B (en) * | 1988-01-26 | 1991-06-26 | Philips Electronic Associated | Decoding transmitted scrambled signals |
US4864615A (en) * | 1988-05-27 | 1989-09-05 | General Instrument Corporation | Reproduction of secure keys by using distributed key generation data |
FR2641152B1 (en) * | 1988-12-23 | 1996-05-10 | Europ Rech Electr Lab |
-
1990
- 1990-02-14 GB GB909003325A patent/GB9003325D0/en active Pending
-
1991
- 1991-02-14 AU AU72362/91A patent/AU7236291A/en not_active Abandoned
- 1991-02-14 GB GB9103138A patent/GB2241096B/en not_active Expired - Fee Related
- 1991-02-14 WO PCT/GB1991/000228 patent/WO1991012693A1/en not_active Application Discontinuation
- 1991-02-14 EP EP19910903871 patent/EP0515448A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO1991012693A1 (en) | 1991-08-22 |
GB2241096B (en) | 1994-03-23 |
EP0515448A1 (en) | 1992-12-02 |
GB2241096A (en) | 1991-08-21 |
GB9003325D0 (en) | 1990-04-11 |
GB9103138D0 (en) | 1991-04-03 |
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