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1. (WO2007022033) PROTECTING ELEMENTARY STREAM CONTENT
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2007/022033 International Application No.: PCT/US2006/031546
Publication Date: 22.02.2007 International Filing Date: 10.08.2006
IPC:
H04L 9/18 (2006.01) ,G06F 17/00 (2006.01) ,H04N 7/08 (2006.01)
Applicants: MICROSOFT CORPORATION[US/US]; One Microsoft Way Redmond, WA 98052-6399, US (AllExceptUS)
Inventors: VIRDI, Gurpratap; US
KLEMETS, Anders E.; US
OLIVEIRA, Eduardo P.; US
PRITCHETT, Thaddeus C.; US
Priority Data:
11/202,83612.08.2005US
Title (EN) PROTECTING ELEMENTARY STREAM CONTENT
(FR) PROTECTION D'UN CONTENU MEDIA ELEMENTAIRE
Abstract: front page image
(EN) Protecting elementary stream media content is described. In one aspect, data segments within elementary stream media content are identified. Each data segment includes a single video or audio frame. Encryption boundaries for protecting the payload packets are selected to correspond to data segment boundaries. The elementary stream media content is then protected using the selected encryption boundaries.
(FR) L'invention concerne la protection d'un contenu média de communication élémentaire. Selon un aspect, les segments de données à l'intérieur de ce contenu sont identifiés. Chaque segment de données comporte une trame unique vidéo ou audio. Des limites de cryptage servant à protéger les paquets de charge utile sont sélectionnées, de façon à correspondre à des limites de segment de données. Ce contenu est ensuite protégé au moyen des limites de cryptage sélectionnées.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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)