DE69216691D1 - Verfahren und Gerät zur Sicherheitsverbesserung eines verschlüsselten Fernsehsignals - Google Patents
Verfahren und Gerät zur Sicherheitsverbesserung eines verschlüsselten FernsehsignalsInfo
- Publication number
- DE69216691D1 DE69216691D1 DE69216691T DE69216691T DE69216691D1 DE 69216691 D1 DE69216691 D1 DE 69216691D1 DE 69216691 T DE69216691 T DE 69216691T DE 69216691 T DE69216691 T DE 69216691T DE 69216691 D1 DE69216691 D1 DE 69216691D1
- Authority
- DE
- Germany
- Prior art keywords
- television signal
- color burst
- burst component
- television
- lines
- 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.)
- Expired - Fee Related
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
- H04N7/1693—Systems operating in the time domain of the television signal by displacing synchronisation signals relative to active picture signals or vice versa
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/714,673 US5146496A (en) | 1991-06-13 | 1991-06-13 | Method and apparatus for enhancing the security of a scrambled television signal |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69216691D1 true DE69216691D1 (de) | 1997-02-27 |
DE69216691T2 DE69216691T2 (de) | 1997-07-17 |
Family
ID=24871007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69216691T Expired - Fee Related DE69216691T2 (de) | 1991-06-13 | 1992-05-27 | Verfahren und Gerät zur Sicherheitsverbesserung eines verschlüsselten Fernsehsignals |
Country Status (9)
Country | Link |
---|---|
US (1) | US5146496A (de) |
EP (1) | EP0518129B1 (de) |
AT (1) | ATE147919T1 (de) |
DE (1) | DE69216691T2 (de) |
ES (1) | ES2097239T3 (de) |
HK (1) | HK1008413A1 (de) |
IE (1) | IE71681B1 (de) |
IL (1) | IL102022A (de) |
NO (1) | NO301399B1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU658014B2 (en) * | 1991-11-19 | 1995-03-30 | Macrovision Corporation | Method and apparatus for scrambling and descrambling of video signals with edge fill |
US6184969B1 (en) * | 1994-10-25 | 2001-02-06 | James L. Fergason | Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement |
US5651065A (en) * | 1995-03-09 | 1997-07-22 | General Instrument Corporation Of Delaware | Insertion of supplemental burst into video signals to thwart piracy and/or carry data |
JP3694981B2 (ja) * | 1996-04-18 | 2005-09-14 | ソニー株式会社 | ビデオ信号処理装置およびビデオ信号処理方法 |
US6169584B1 (en) | 1997-12-05 | 2001-01-02 | Motorola, Inc. | Automatic modulation control of sync suppressed television signals |
US8243004B2 (en) | 2003-03-10 | 2012-08-14 | Fergason Patent Properties, Llc | Apparatus and method for preparing, storing, transmitting and displaying images |
US8191160B2 (en) * | 2003-10-16 | 2012-05-29 | Rene Juneau | Method and system for auditing and correcting authorization inconsistencies for reception equipment in a content delivery network |
EP1680887A4 (de) | 2003-10-16 | 2013-06-26 | Maxxian Technology Inc | Verfahren und system zum erkennen und verhindern einer unbefugten signalbenutzung in einem inhaltsablieferungsnetzwerk |
US8671457B2 (en) * | 2004-10-15 | 2014-03-11 | Maxxian Technology Inc. | Method and system for identifying and correcting location discrepancies for reception equipment in a content delivery network |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3813482A (en) * | 1972-07-24 | 1974-05-28 | Blonder Tongue Lab | Method of and apparatus for scramble-encoded transmission and decoded reception for over the air and cable subscription television and the like |
US4095258A (en) * | 1976-10-15 | 1978-06-13 | Blonder-Tongue Laboratories, Inc. | Apparatus for decoding scrambled television and similar transmissions |
US4163252A (en) * | 1976-11-03 | 1979-07-31 | Blonder-Tongue Laboratories, Inc. | Subscription television decoder apparatus |
US4459611A (en) * | 1978-08-28 | 1984-07-10 | Fuji Xerox Co., Ltd. | Image conversion system |
EP0123505B1 (de) * | 1983-04-21 | 1989-09-27 | General Instrument Corporation | System zur Verschlüsselung von Fernsehsignalen |
US4542407A (en) * | 1983-06-10 | 1985-09-17 | North American Philips Corporation | Method and apparatus for scrambling and descrambling television programs |
US4571615A (en) * | 1983-06-10 | 1986-02-18 | General Instrument Corporation | Timing generator for sync suppressed television signals |
US4901349A (en) * | 1987-12-31 | 1990-02-13 | Communications Satellite Corporation | Time dispersal encryption of TV signals |
US4914694A (en) * | 1988-04-11 | 1990-04-03 | Eidak Corporation | Modifying a television signal to inhibit recording/reproduction |
US5060262A (en) * | 1990-05-07 | 1991-10-22 | Bevins Jr George L | Video scrambling, audio masking and data transmission methods for wireless cable systems |
GB2246262B (en) * | 1990-05-10 | 1994-03-02 | Pioneer Electronic Corp | Television signal scrambling method and apparatus |
-
1991
- 1991-06-13 US US07/714,673 patent/US5146496A/en not_active Expired - Lifetime
-
1992
- 1992-05-27 ES ES92108925T patent/ES2097239T3/es not_active Expired - Lifetime
- 1992-05-27 EP EP92108925A patent/EP0518129B1/de not_active Expired - Lifetime
- 1992-05-27 AT AT92108925T patent/ATE147919T1/de not_active IP Right Cessation
- 1992-05-27 IL IL10202292A patent/IL102022A/en not_active IP Right Cessation
- 1992-05-27 DE DE69216691T patent/DE69216691T2/de not_active Expired - Fee Related
- 1992-06-11 NO NO922286A patent/NO301399B1/no unknown
- 1992-07-01 IE IE921630A patent/IE71681B1/en not_active IP Right Cessation
-
1998
- 1998-06-24 HK HK98106365A patent/HK1008413A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69216691T2 (de) | 1997-07-17 |
IE921630A1 (en) | 1992-12-16 |
NO301399B1 (no) | 1997-10-20 |
EP0518129B1 (de) | 1997-01-15 |
IL102022A (en) | 1995-07-31 |
ATE147919T1 (de) | 1997-02-15 |
IL102022A0 (en) | 1992-12-30 |
NO922286D0 (no) | 1992-06-11 |
NO922286L (no) | 1992-12-14 |
EP0518129A2 (de) | 1992-12-16 |
HK1008413A1 (en) | 1999-05-07 |
ES2097239T3 (es) | 1997-04-01 |
US5146496A (en) | 1992-09-08 |
EP0518129A3 (en) | 1993-05-19 |
IE71681B1 (en) | 1997-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |