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1. (WO1997017804) METHOD AND APPARATUS FOR DE-INTERLACING VIDEO FIELDS TO PROGRESSIVE SCAN VIDEO FRAMES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017804 International Application No.: PCT/CA1996/000699
Publication Date: 15.05.1997 International Filing Date: 18.10.1996
Chapter 2 Demand Filed: 06.06.1997
IPC:
H04N 5/44 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
44
Receiver circuitry
Applicants:
GENESIS MICROCHIP INC. [CA/CA]; Suite 400 200 Town Centre Boulevard Markham, Ontario L3R 8G5, CA
Inventors:
GREGGAIN, Lance; CA
GOEL, James; CA
Agent:
PERRY, Stephen, J.; Sim & McBurney 6th floor 330 University Avenue Toronto, Ontario M5G 1R7, CA
Priority Data:
08/555,28808.11.1995US
Title (EN) METHOD AND APPARATUS FOR DE-INTERLACING VIDEO FIELDS TO PROGRESSIVE SCAN VIDEO FRAMES
(FR) PROCEDE ET APPAREIL PERMETTANT DE DES-ENTRELACER DES CHAMPS VIDEO POUR CREER DES TRAMES VIDEO DE BALAYAGE PROGRESSIF
Abstract:
(EN) A method and apparatus are provided for converting interlaced video fields of arbitrary size to progressive scan format video frames of arbitrary size. The method and apparatus of the invention provide consistent conversion quality even while output video dimensions are scaled in real-time. According to a first aspect of the invention the space between output lines is calculated with respect to the input fields. According to a second aspect, the output line spacing information is used to calculate the final line positions in a progressive scan output frame.
(FR) Cette invention concerne un procédé et un appareil de conversion de champs vidéo entrelacés de taille arbitraire en des trames vidéo de balayage progressif de taille arbitraire. Le procédé et l'appareil de l'invention assurent une qualité de conversion cohérente même simultanément à un changement d'échelle en temps réel des dimensions vidéo de sortie. Conformément à un premier aspect de cette invention, on calcule l'espacement entre les lignes de sortie par rapport aux champs d'entrée. Conformément à un second aspect de cette invention, on utilise les informations relatives à l'espacement des lignes de sortie pour calculer les positions finales des lignes dans une trame de sortie de balayage progressif.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0860080JP4191246 JPH11514809 KR1019990067447AU1996072720