WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2002030104) METHOD INCLUDING LOSSLESS COMPRESSION OF LUMINANCE CHANNEL AND LOSSY COMPRESSION OF CHROMINANCE CHANNELS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/030104    International Application No.:    PCT/US2001/029176
Publication Date: 11.04.2002 International Filing Date: 18.09.2001
Chapter 2 Demand Filed:    25.04.2002    
IPC:
H04N 1/64 (2006.01)
Applicants: HEWLETT-PACKARD COMPANY [US/US]; 3000 Hanover Street, Palo Alto, CA 94303-1181 (US)
Inventors: MAURER, Ron P,; (IL).
BARASH, Danny; (IL).
BURGIN, Richard Alan,; (US).
THEDENS, David E,; (US)
Agent: HEMINGER, Susan E,; Hewlett-Packard Company, Legal Department, IP Section, P. O. Box 272400, Ft. Collins, CO 80527-2400 (US)
Priority Data:
09/676,867 29.09.2000 US
Title (EN) METHOD INCLUDING LOSSLESS COMPRESSION OF LUMINANCE CHANNEL AND LOSSY COMPRESSION OF CHROMINANCE CHANNELS
(FR) PROCEDE COMPORTANT UNE COMPRESSION SANS PERTE DU CANAL DE LUMINANCE ET UNE COMPRESSION AVEC PERTES DES CANAUX DE CHROMINANCE
Abstract: front page image
(EN) Compression of a digital image is performed by bit-depth truncating a luminance channel of the digital image and performing lossless compression on the bit-depth truncated luminance channel; and performing lossy compression on chrominance channels of the digital image.
(FR)On effectue la compression d'une image numérique: (i) en découpant à profondeur de bit le canal de luminance de l'image numérique; (ii) en effectuant une compression sans perte dudit canal, et (iii) en effectuant une compression avec pertes sur les canaux de chrominance de l'image numérique.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)