EP 0403479 A1 19901227 - APPARATUS FOR PROCESSING AUXILIARY INFORMATION IN AN EXTENDED DEFINITION WIDESCREEN TELEVISION SYSTEM.
Title (en)
APPARATUS FOR PROCESSING AUXILIARY INFORMATION IN AN EXTENDED DEFINITION WIDESCREEN TELEVISION SYSTEM.
Title (de)
VORRICHTUNG ZUR VERARBEITUNG EINER ZUSÄTZLICHEN INFORMATION IN EINEM GROSSBILDFERNSEHSYSTEM HÖHERER AUFLÖSUNG.
Title (fr)
APPAREIL DE TRAITEMENT D'INFORMATIONS AUXILIAIRES DANS UN SYSTEME DE TELEVISION GRAND-ECRAN A DEFINITION ACCRUE.
Publication
Application
Priority
- GB 8721565 A 19870914
- US 13934087 A 19871229
Abstract (en)
[origin: WO8902690A1] An NTSC compatible widescreen EDTV system encodes and decodes a television signal comprising: (1) a main, standard format NTSC signal (N) component with low frequency side panel image information compressed into the overscan regions thereof; (2) a time expanded high frequency side panel image information (X) component; and (3) an extended high frequency horizontal luminance image information component (Z). Components (2) and (3) modulate an alternate subcarrier (ASC) which exhibits a frequency other than the frequency of a chrominance subcarrier within a band of frequencies occupied by chrominance image information.
Abstract (fr)
Un système de télévision grand écran à définition accrue (EDTV) à canal unique de transmission compatible avec le système NTSC code et décode un signal de télévision qui comprend: (1) un signal NTSC principal (N) de format standard contenant des informations d'image de basse fréquence comprimées dans des zones latérales de balayage dépassant; (2) une composante (X) d'informations étendues d'image HF contenues dans des zones latérales; (3) une composante (Z) d'informations étendues d'image HF concernant la luminance des lignes. Les composantes (2) et (3) modulent en quadrature (80) une sous-porteuse de remplacement (ASC) autre qu'une sous-porteuse de chrominance et présentant une phase alternative différente de celle de la sous-porteuse de chrominance.
IPC 1-7
IPC 8 full level
H04N 7/015 (2006.01); G06T 9/00 (2006.01); H04N 11/02 (2006.01); H04N 11/20 (2006.01); H04N 11/24 (2006.01)
CPC (source: EP)
G06T 9/004 (2013.01); H04N 11/30 (2018.12)
Citation (search report)
See references of WO 8902688A1
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
WO 8902690 A1 19890323; AT E109605 T1 19940815; AU 2382888 A 19890417; AU 629181 B2 19921001; BR 8807697 A 19900807; CA 1309163 C 19921020; CA 1309164 C 19921020; CA 1309165 C 19921020; CN 1018507 B 19920930; CN 1018510 B 19920930; CN 1018511 B 19920930; CN 1032093 A 19890329; CN 1032278 A 19890405; CN 1034456 A 19890802; DE 3890743 C2 19910516; DE 3890745 C2 19910516; DE 3890746 C2 19920423; DK 61190 A 19900308; DK 61190 D0 19900308; DK 61490 A 19900308; DK 61490 D0 19900308; DK 61590 A 19900308; DK 61590 D0 19900308; EP 0377669 A1 19900718; EP 0394289 A1 19901031; EP 0394289 B1 19940803; EP 0403479 A1 19901227; ES 2008820 A6 19890801; ES 2008821 A6 19890801; ES 2010798 A6 19891201; FI 87714 B 19921030; FI 87714 C 19930210; FI 88092 B 19921215; FI 88092 C 19930325; FI 88845 B 19930331; FI 88845 C 19930712; FI 901273 A0 19900314; FI 901274 A0 19900314; FI 901276 A0 19900314; GB 2230157 A 19901010; GB 2230157 B 19920226; GB 2230917 A 19901031; GB 2230917 B 19920226; GB 2231461 A 19901114; GB 2231461 B 19920304; GB 9002609 D0 19900801; GB 9003149 D0 19900801; GB 9003151 D0 19900718; IN 170304 B 19920314; IN 170842 B 19920530; JP 2783821 B2 19980806; JP 2786459 B2 19980813; JP H03500228 A 19910117; JP H03500229 A 19910117; JP H03500234 A 19910117; MX 170170 B 19930810; NZ 226144 A 19910129; NZ 226146 A 19910129; NZ 226150 A 19910129; PT 88483 A 19890731; PT 88483 B 19950331; PT 88484 A 19890731; PT 88484 B 19950301; PT 88485 A 19890731; PT 88485 B 19940331; WO 8902687 A1 19890323; WO 8902688 A1 19890323
DOCDB simple family (application)
US 8803016 W 19880909; AT 88908578 T 19880909; AU 2382888 A 19880909; BR 8807697 A 19880909; CA 576860 A 19880908; CA 576861 A 19880908; CA 576862 A 19880908; CN 88106649 A 19880914; CN 88106653 A 19880914; CN 88106654 A 19880914; DE 3890743 A 19880909; DE 3890745 A 19880909; DE 3890746 A 19880909; DK 61190 A 19900308; DK 61490 A 19900308; DK 61590 A 19900308; EP 88908578 A 19880909; EP 88908579 A 19880909; EP 88908856 A 19880909; ES 8802797 A 19880914; ES 8802798 A 19880914; ES 8802802 A 19880914; FI 901273 A 19900314; FI 901274 A 19900314; FI 901276 A 19900314; GB 9002609 A 19900206; GB 9003149 A 19900212; GB 9003151 A 19900212; IN 706CA1988 A 19880823; IN 720CA1988 A 19880829; JP 50751988 A 19880909; JP 50775088 A 19880909; JP 50808088 A 19880909; MX 1301088 A 19880913; NZ 22614488 A 19880912; NZ 22614688 A 19880912; NZ 22615088 A 19880912; PT 8848388 A 19880913; PT 8848488 A 19880913; PT 8848588 A 19880913; US 8803013 W 19880909; US 8803014 W 19880909