Patent SG-11201809846U-A (SG)
Title: Color table compression
Inventor: TANG CHUOHAO
IPC: H04N1/60
Filed: 2016-11-07
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1111111111111111111111111111111111111111111111111111111011110111111011110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0 WO 2018/009235 Al 11 January 2018 (11.01.2018) WIP0 I PCT (51) International Patent Classification: (US). REIBMAN, Amy Ruth; 1281 Win Hentschel Blvd., HO4N 1/60 (2006.01) HO4N 1/41 (2006.01) West Lafayette, Indiana 47906 (US). SHAW, Mark Q.; HO4N 1/00 (2006.01) 11311 Chinden Blvd, Boise, Idaho 83714-0021 (US). (21) International Application Number: ALLEBACH, Jan P.; 1281 Win Hentschel Blvd., West Lafayette, Indiana 47906 (US). GONDEK, Jay S.; Colum- PCT/US2016/060874 bia Tech Center, 1115 SE 164th Ave, Columbia Center, (22) International Filing Date: Suite 210, Washington 98683 (US). 07 November 2016 (07.11.2016) (74) Agent: MORRIS, Jordan et al.; HP Inc., 3390 E. Harmony (25) Filing Language: English Road, Mail Stop 35, Fort Collins, Colorado 80528 (US). (26) Publication Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (30) Priority Data: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, PCT/US2016/041633 CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 08 July 2016 (08.07.2016) US DZ, EC, EE, EG, ES, FL GB, GD, GE, GH, GM, GT, HN, (71) Applicants: HEWLETT-PACKARD DEVELOPMENT HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, COMPANY, L.P. [US/US]; 11445 Compaq Center Drive KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, W., Houston, Texas 77070 (US). PURDUE RESEARCH MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, FOUNDATION [US/US]; 1281 Win Hentschel Blvd., PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, West Lafayette, Indiana 47906 (US). SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, — TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. — (72) Inventors: TANG, Chuohao; 1281 Win Hentschel Blvd., = West Lafayette, Indiana 47906 (US). COLLISON, Sean (84) Designated States (unless otherwise indicated, for every _ Michael; 11311 Chinden Blvd, Boise, Idaho 83714-0021 kind of regional protection available): ARIPO (BW, GH, = GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, = (54) Title: COLOR TABLE COMPRESSION = = 100 = = = MEMORY DEVICE = = — = = = = COMPRESSED DIFFERENCE COLOR TABLE CORRECTIVE INFORMATION = ----• 102 '''-- 104 1-1 Fig. 1 ir) M ei ON (57) : A memory device includes a compressed difference color table and corrective information. A difference color table that C 0 is compressed includes a plurality of difference nodes in which each difference node represents a value that is a difference of a value -- --- GO of a node an original color table and a value of corresponding node of a reference table. The difference color table is compressed at ,-1 a selected compression amount. The plurality of difference nodes includes a set of nodes having a color difference outside an error 0 threshold at the selected compression ratio. ei C [Continued on next page] WO 2018/009235 Al MIDEDIMOMOIDEIREEMOOVIMEIMIOMMOVOIS UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))