IL102022A - METHOD AND DEVICE FOR INCREASING THE SECURITY OF A MIXED TV SIGNAL - Google Patents
METHOD AND DEVICE FOR INCREASING THE SECURITY OF A MIXED TV SIGNALInfo
- Publication number
- IL102022A IL102022A IL10202292A IL10202292A IL102022A IL 102022 A IL102022 A IL 102022A IL 10202292 A IL10202292 A IL 10202292A IL 10202292 A IL10202292 A IL 10202292A IL 102022 A IL102022 A IL 102022A
- Authority
- IL
- Israel
- Prior art keywords
- television signal
- color burst
- time
- scrambled
- line
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 18
- 230000002708 enhancing effect Effects 0.000 title claims description 9
- 230000001186 cumulative effect Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000001629 suppression Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 2
- 238000009877 rendering Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 claims 7
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 238000009795 derivation Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241001538365 Accipiter nisus Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Signal Processing For Recording (AREA)
- Closed-Circuit Television Systems (AREA)
- Burglar Alarm Systems (AREA)
- Television Systems (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Details Of Television Scanning (AREA)
- Color Television Systems (AREA)
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 |
|---|---|
| IL102022A0 IL102022A0 (en) | 1992-12-30 |
| IL102022A true IL102022A (en) | 1995-07-31 |
Family
ID=24871007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL10202292A IL102022A (en) | 1991-06-13 | 1992-05-27 | METHOD AND DEVICE FOR INCREASING THE SECURITY OF A MIXED TV SIGNAL |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5146496A (de) |
| EP (1) | EP0518129B1 (de) |
| AT (1) | ATE147919T1 (de) |
| DE (1) | DE69216691T2 (de) |
| ES (1) | ES2097239T3 (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 |
| EP1680887A4 (de) | 2003-10-16 | 2013-06-26 | Maxxian Technology Inc | Verfahren und system zum erkennen und verhindern einer unbefugten signalbenutzung in einem inhaltsablieferungsnetzwerk |
| 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 |
| 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 |
| DE3479952D1 (en) * | 1983-04-21 | 1989-11-02 | Gen Instrument Corp | Scrambling system for television video signal |
| 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 IL IL10202292A patent/IL102022A/en not_active IP Right Cessation
- 1992-05-27 AT AT92108925T patent/ATE147919T1/de not_active IP Right Cessation
- 1992-05-27 EP EP92108925A patent/EP0518129B1/de not_active Expired - Lifetime
- 1992-05-27 DE DE69216691T patent/DE69216691T2/de not_active Expired - Fee Related
- 1992-05-27 ES ES92108925T patent/ES2097239T3/es not_active Expired - Lifetime
- 1992-06-11 NO NO922286A patent/NO301399B1/no unknown
- 1992-07-01 IE IE921630A patent/IE71681B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US5146496A (en) | 1992-09-08 |
| EP0518129A2 (de) | 1992-12-16 |
| EP0518129A3 (en) | 1993-05-19 |
| IL102022A0 (en) | 1992-12-30 |
| HK1008413A1 (en) | 1999-05-07 |
| DE69216691D1 (de) | 1997-02-27 |
| NO922286D0 (no) | 1992-06-11 |
| IE921630A1 (en) | 1992-12-16 |
| DE69216691T2 (de) | 1997-07-17 |
| IE71681B1 (en) | 1997-02-26 |
| ES2097239T3 (es) | 1997-04-01 |
| ATE147919T1 (de) | 1997-02-15 |
| NO922286L (no) | 1992-12-14 |
| NO301399B1 (no) | 1997-10-20 |
| EP0518129B1 (de) | 1997-01-15 |
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| US5058157A (en) | Method and apparatus for encrypting and decrypting time domain signals | |
| JPH0744682B2 (ja) | 契約テレビ信号のデスクランブリング方法及び装置 | |
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| US5651065A (en) | Insertion of supplemental burst into video signals to thwart piracy and/or carry data | |
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| US5161188A (en) | Scrambling video by horizontal and vertical time shifting | |
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| EP0123505B1 (de) | System zur Verschlüsselung von Fernsehsignalen | |
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| CA2235101C (en) | Method and apparatus for scrambling and descrambling of video signals with edge fill | |
| JPS61224684A (ja) | 映像暗号処理方式 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KB | Patent renewed | ||
| HE | Change of address of proprietor(s) | ||
| KB | Patent renewed | ||
| MM9K | Patent not in force due to non-payment of renewal fees |