ES2192552T3 - Metodo y aparato para mejorar los efectos de modificacion de rafagas de color de una señal de video. - Google Patents

Metodo y aparato para mejorar los efectos de modificacion de rafagas de color de una señal de video.

Info

Publication number
ES2192552T3
ES2192552T3 ES01118064T ES01118064T ES2192552T3 ES 2192552 T3 ES2192552 T3 ES 2192552T3 ES 01118064 T ES01118064 T ES 01118064T ES 01118064 T ES01118064 T ES 01118064T ES 2192552 T3 ES2192552 T3 ES 2192552T3
Authority
ES
Spain
Prior art keywords
color
video signal
phase
video
gusts
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 - Lifetime
Application number
ES01118064T
Other languages
English (en)
Inventor
William J Wrobleski
Ronald Quan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adeia Media LLC
Original Assignee
Macrovision Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27533382&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2192552(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Macrovision Corp filed Critical Macrovision Corp
Application granted granted Critical
Publication of ES2192552T3 publication Critical patent/ES2192552T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/44—Colour synchronisation
    • H04N9/455—Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91371—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video color burst signal being modified

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Studio Circuits (AREA)

Abstract

Un método de impedir la realización de una grabación de video aceptable de una señal de video PAL, cuya señal incluye una pluralidad de líneas de video, incluyendo cada línea de video una ráfaga de color que tiene una duración y una fase predeterminadas, caracterizándose el método por la operación de: modificar la fase de la ráfaga de color de manera que la media de los vectores de fase de una pluralidad de líneas que tengan dichas señales modificadas esté en oposición, a casi 180°, respecto a la media de los vectores de fase de una pluralidad de líneas con las señales de ráfaga de color apropiadas, por lo que se impide la realización de una grabación de video aceptable de la señal de video.
ES01118064T 1996-01-16 1996-11-05 Metodo y aparato para mejorar los efectos de modificacion de rafagas de color de una señal de video. Expired - Lifetime ES2192552T3 (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US1001596P 1996-01-16 1996-01-16
US1077996P 1996-01-29 1996-01-29
US1424696P 1996-03-26 1996-03-26
US2439396P 1996-06-28 1996-06-28
US2164596P 1996-07-12 1996-07-12

Publications (1)

Publication Number Publication Date
ES2192552T3 true ES2192552T3 (es) 2003-10-16

Family

ID=27533382

Family Applications (3)

Application Number Title Priority Date Filing Date
ES01118064T Expired - Lifetime ES2192552T3 (es) 1996-01-16 1996-11-05 Metodo y aparato para mejorar los efectos de modificacion de rafagas de color de una señal de video.
ES96939546T Expired - Lifetime ES2169821T3 (es) 1996-01-16 1996-11-05 Metodo y aparato para mejorar los efectos de modificaciones de las rafagas de color en una señal de video.
ES01118065T Expired - Lifetime ES2195975T3 (es) 1996-01-16 1996-11-05 Aparato para mejorar los efectos de modificaciones de las rafagas de color en una señal de video.

Family Applications After (2)

Application Number Title Priority Date Filing Date
ES96939546T Expired - Lifetime ES2169821T3 (es) 1996-01-16 1996-11-05 Metodo y aparato para mejorar los efectos de modificaciones de las rafagas de color en una señal de video.
ES01118065T Expired - Lifetime ES2195975T3 (es) 1996-01-16 1996-11-05 Aparato para mejorar los efectos de modificaciones de las rafagas de color en una señal de video.

Country Status (23)

Country Link
EP (3) EP0875116B1 (es)
JP (1) JP3567243B2 (es)
KR (1) KR100304040B1 (es)
CN (1) CN1109440C (es)
AR (1) AR004417A1 (es)
AT (3) ATE213891T1 (es)
AU (1) AU700936B2 (es)
BG (1) BG63588B1 (es)
BR (1) BR9612439A (es)
CA (1) CA2243280C (es)
CZ (1) CZ290419B6 (es)
DE (3) DE69619556T2 (es)
DK (3) DK1152610T3 (es)
ES (3) ES2192552T3 (es)
FI (1) FI981551L (es)
HU (1) HU224851B1 (es)
IL (1) IL125263A0 (es)
MY (3) MY127596A (es)
NZ (1) NZ322723A (es)
PL (1) PL183576B1 (es)
PT (3) PT875116E (es)
RU (1) RU2160971C2 (es)
WO (1) WO1997026759A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0970581T3 (da) * 1997-03-21 2003-05-19 Macrovision Corp Fremgangsmåde til detektion af modificerede farvepulssignaler for at forhindre kopiering af et videoprogram
RU2195084C2 (ru) * 1997-10-08 2002-12-20 Макровижн Корпорейшн Способ и устройство для "водяного знака" однократного копирования для видеозаписи
GB2377109B (en) * 2001-06-28 2003-12-03 Motorola Inc Video/image communication with watermarking
CN100435554C (zh) * 2003-06-13 2008-11-19 钰创科技股份有限公司 图像信号处理的相位增强导致减弱的相位回复方法及电路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739598B2 (es) * 1974-04-23 1982-08-21
DE2924453A1 (de) * 1979-06-18 1981-01-15 Walter Ing Grad Breu Verfahren und einrichtung zur herstellung kopiersicher bespielter videokassetten
DE3306174A1 (de) * 1983-02-23 1984-08-23 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Videokassette mit schutz gegen ueberspielung
US4577216A (en) * 1983-11-14 1986-03-18 Macrovision Method and apparatus for modifying the color burst to prohibit videotape recording
US4626890A (en) * 1984-07-03 1986-12-02 Macrovision Method and apparatus for removing phase modulation from the color burst
JP2516094B2 (ja) * 1990-08-09 1996-07-10 日本ビクター株式会社 Ｐａｌ信号のカラ―フィ―ルド検出回路
US5315448A (en) * 1993-03-18 1994-05-24 Macrovision Corporation Copy protection for hybrid digital video tape recording and unprotected source material
CA2218393C (en) * 1995-05-09 2000-12-12 Macrovision Corporation Method and apparatus for defeating effects of color burst modifications to a video signal

Also Published As

Publication number Publication date
AR004417A1 (es) 1998-12-16
DE69627555D1 (de) 2003-05-22
PL327932A1 (en) 1999-01-04
WO1997026759A1 (en) 1997-07-24
KR19990077383A (ko) 1999-10-25
RU2160971C2 (ru) 2000-12-20
ES2195975T3 (es) 2003-12-16
HUP0000391A2 (hu) 2000-06-28
DE69627555T2 (de) 2003-11-20
IL125263A0 (en) 1999-03-12
DE69627905T2 (de) 2004-05-19
DK1152610T3 (da) 2003-07-21
AU7668896A (en) 1997-08-11
ES2169821T3 (es) 2002-07-16
EP0875116A1 (en) 1998-11-04
CN1109440C (zh) 2003-05-21
DK0875116T3 (da) 2002-04-15
EP1152610A1 (en) 2001-11-07
EP0875116B1 (en) 2002-02-27
JP3567243B2 (ja) 2004-09-22
HK1016393A1 (en) 1999-10-29
CZ215298A3 (cs) 1999-05-12
HU224851B1 (en) 2006-03-28
ATE213891T1 (de) 2002-03-15
ATE239340T1 (de) 2003-05-15
BR9612439A (pt) 1999-07-13
CN1207850A (zh) 1999-02-10
CZ290419B6 (cs) 2002-07-17
BG63588B1 (bg) 2002-05-31
FI981551A7 (fi) 1998-08-19
PL183576B1 (pl) 2002-06-28
MY127596A (en) 2006-12-29
DE69619556D1 (de) 2002-04-04
CA2243280C (en) 2001-07-31
EP1152610B1 (en) 2003-04-16
FI981551A0 (fi) 1996-11-05
CA2243280A1 (en) 1997-07-24
KR100304040B1 (ko) 2001-11-22
AU700936B2 (en) 1999-01-14
DE69619556T2 (de) 2002-08-22
NZ322723A (en) 1999-02-25
PT1152610E (pt) 2003-09-30
PT875116E (pt) 2002-08-30
EP1152611B1 (en) 2003-05-02
MY127595A (en) 2006-12-29
EP1152611A1 (en) 2001-11-07
HUP0000391A3 (en) 2002-09-30
PT1152611E (pt) 2003-09-30
MY119421A (en) 2005-05-31
DK1152611T3 (da) 2003-07-21
JP2002506580A (ja) 2002-02-26
FI981551L (fi) 1998-08-19
DE69627905D1 (de) 2003-06-05
ATE237901T1 (de) 2003-05-15
BG102615A (bg) 1999-06-30

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