ES2169821T3 - Metodo y aparato para mejorar los efectos de modificaciones de las rafagas de color en una señal de video. - Google Patents

Metodo y aparato para mejorar los efectos de modificaciones de las rafagas de color en una señal de video.

Info

Publication number
ES2169821T3
ES2169821T3 ES96939546T ES96939546T ES2169821T3 ES 2169821 T3 ES2169821 T3 ES 2169821T3 ES 96939546 T ES96939546 T ES 96939546T ES 96939546 T ES96939546 T ES 96939546T ES 2169821 T3 ES2169821 T3 ES 2169821T3
Authority
ES
Spain
Prior art keywords
color
pal
video
improve
band process
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
ES96939546T
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.)
Rovi Corp
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=ES2169821(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 ES2169821T3 publication Critical patent/ES2169821T3/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

EN EL CONOCIDO PROCESO DE BANDAS DE COLOR PARA EVITAR EL REGISTRO DE SEÑALES DE VIDEO, LA SALVA DE COLOR PRESENTE EN CADA LINEA DE VIDEO ACTIVO SE MODIFICA DE MODO QUE CUALQUIER REGISTRO POSTERIOR DE LA SEÑAL DE VIDEO EN CINTA DE VIDEO PRESENTE VARIACIONES EN LA FIDELIDAD DEL COLOR QUE APARECEN COMO BANDAS O FRANJAS DE ERROR DE COLOR INDESEADAS. ESTE PROCESO DE BANDAS DE COLOR SE MEJORA COMBINANDO LA MODIFICACION DE LA FASE DE LA SALVA DE COLOR EN SOLO PARTE DE LA SALVA DE COLOR. SE HAN OBTENIDO MEJORAS ADICIONALES INCORPORANDO TECNICAS DE ENSANCHAMIENTO DE LA ENVOLVENTE DE LA SALVA DE COLOR NORMAL HACIA EL BORDE POSTERIOR DE SINCRONIA HORIZONTAL Y HACIA EL INICIO DEL VIDEO ACTIVO. ESTAS TECNICAS SON UTILES PARA MEJORAR EL FUNCIONAMIENTO DEL PROCESO DE BANDAS DE COLOR TANTO EN EL SISTEMA DE COLOR PAL COMO EN EL NTSC. SIN EMBARGO, SE DESCRIBEN MEJORAS ADICIONALES EN EL SISTEMA PAL POR LAS QUE SE CONTROLAN LAS MODIFICACIONES DE FASE PARA EVITAR PERTURBAR EL LLAMADO IMPULSO ID PAL. ESTA EVITACION DEL IMPULSO ID PAL MEJORA LA REPRODUCIBILIDAD DE LA SEÑAL DE BANDA DE COLOR EN EL FORMATO PAL.
ES96939546T 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. Expired - Lifetime ES2169821T3 (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
ES2169821T3 true ES2169821T3 (es) 2002-07-16

Family

ID=27533382

Family Applications (3)

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.
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.

Family Applications After (2)

Application Number Title Priority Date Filing Date
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.
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.

Country Status (24)

Country Link
EP (3) EP1152610B1 (es)
JP (1) JP3567243B2 (es)
KR (1) KR100304040B1 (es)
CN (1) CN1109440C (es)
AR (1) AR004417A1 (es)
AT (3) ATE237901T1 (es)
AU (1) AU700936B2 (es)
BG (1) BG63588B1 (es)
BR (1) BR9612439A (es)
CA (1) CA2243280C (es)
CZ (1) CZ290419B6 (es)
DE (3) DE69627555T2 (es)
DK (3) DK0875116T3 (es)
ES (3) ES2169821T3 (es)
FI (1) FI981551A (es)
HK (1) HK1016393A1 (es)
HU (1) HU224851B1 (es)
IL (1) IL125263A0 (es)
MY (3) MY119421A (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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998043420A1 (en) * 1997-03-21 1998-10-01 Macrovision Corporation Method and apparatus for detecting modified color burst signals to prevent the copying of a video program
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5315448A (en) * 1993-03-18 1994-05-24 Macrovision Corporation Copy protection for hybrid digital video tape recording and unprotected source material
PT824825E (pt) * 1995-05-09 2002-04-29 Macrovision Corp Processo e aparelho para contraiar os efeitos das modificacoes da pequena serie de oscilacoes na subportadora de crominancia seguinte a cada impulso de sincronizacao horizontal num sinal de video

Also Published As

Publication number Publication date
JP3567243B2 (ja) 2004-09-22
PT1152610E (pt) 2003-09-30
CA2243280C (en) 2001-07-31
BR9612439A (pt) 1999-07-13
DE69619556D1 (de) 2002-04-04
PL183576B1 (pl) 2002-06-28
PL327932A1 (en) 1999-01-04
EP1152611A1 (en) 2001-11-07
HUP0000391A3 (en) 2002-09-30
FI981551A0 (fi) 1996-11-05
MY127596A (en) 2006-12-29
EP1152611B1 (en) 2003-05-02
ATE237901T1 (de) 2003-05-15
ES2195975T3 (es) 2003-12-16
MY127595A (en) 2006-12-29
DK0875116T3 (da) 2002-04-15
DK1152611T3 (da) 2003-07-21
HU224851B1 (en) 2006-03-28
ATE213891T1 (de) 2002-03-15
FI981551A (fi) 1998-08-19
KR19990077383A (ko) 1999-10-25
BG102615A (en) 1999-06-30
RU2160971C2 (ru) 2000-12-20
HK1016393A1 (en) 1999-10-29
MY119421A (en) 2005-05-31
AU700936B2 (en) 1999-01-14
DE69627555T2 (de) 2003-11-20
PT875116E (pt) 2002-08-30
EP1152610A1 (en) 2001-11-07
KR100304040B1 (ko) 2001-11-22
DE69619556T2 (de) 2002-08-22
PT1152611E (pt) 2003-09-30
WO1997026759A1 (en) 1997-07-24
NZ322723A (en) 1999-02-25
CA2243280A1 (en) 1997-07-24
BG63588B1 (bg) 2002-05-31
CN1109440C (zh) 2003-05-21
AU7668896A (en) 1997-08-11
DE69627905D1 (de) 2003-06-05
EP1152610B1 (en) 2003-04-16
EP0875116A1 (en) 1998-11-04
ES2192552T3 (es) 2003-10-16
CZ290419B6 (cs) 2002-07-17
CN1207850A (zh) 1999-02-10
CZ215298A3 (cs) 1999-05-12
IL125263A0 (en) 1999-03-12
JP2002506580A (ja) 2002-02-26
AR004417A1 (es) 1998-12-16
ATE239340T1 (de) 2003-05-15
DK1152610T3 (da) 2003-07-21
HUP0000391A2 (hu) 2000-06-28
DE69627555D1 (de) 2003-05-22
DE69627905T2 (de) 2004-05-19
EP0875116B1 (en) 2002-02-27

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