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1. (WO2003058950) METHOD AND APPARATUS FOR SIMULTANEOUSLY DECRYPTING MULTIPLE SERVICES RECEIVED ON SEPARATE MULTIPLEXED TRANSPORT STREAMS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/058950    International Application No.:    PCT/US2002/041783
Publication Date: 17.07.2003 International Filing Date: 30.12.2002
IPC:
H04N 21/4147 (2011.01), H04N 21/426 (2011.01), H04N 21/434 (2011.01), H04N 21/4385 (2011.01)
Applicants: GENERAL INSTRUMENT CORPORATION [US/US]; 101 Tournament Drive Horsham, PA 19044 (US) (For All Designated States Except US).
BJORDAMMEN, David, M. [US/US]; (US) (For US Only).
VINCE, Lawrence, D. [US/US]; (US) (For US Only).
GOFFIN, Glen, Peter II [US/US]; (US) (For US Only)
Inventors: BJORDAMMEN, David, M.; (US).
VINCE, Lawrence, D.; (US).
GOFFIN, Glen, Peter II; (US)
Agent: LIPSITZ, Barry, R.; Law offices of Barry R. Lipsitz 755 Main Street, Building No. 8 Monroe, CT 06468 (US)
Priority Data:
10/036,562 31.12.2001 US
Title (EN) METHOD AND APPARATUS FOR SIMULTANEOUSLY DECRYPTING MULTIPLE SERVICES RECEIVED ON SEPARATE MULTIPLEXED TRANSPORT STREAMS
(FR) PROCEDE ET SYSTEME DE DECRYPTAGE SIMULTANE DE SERVICES MULTIPLES REÇUS DANS DES FLOTS DE TRANSPORT MULTIPLEXES DISTINCTS
Abstract: front page image
(EN)The present invention relates to methods and apparatus for simultaneously decrypting multiple services received on separate encrypted multiplexed transport streams. A plurality of encrypted multiplexed transport streams may be received at a television terminal. Each transport stream may have at least one service. The plurality of multiplexed transport streams may be received by, for example, multiple tuning devices and/or provided from a storage device, such as a Personal Versatile Recorder (PVR). A plurality of desired services are selected from a subset of the transport streams. The desired services are multiplexed into a desired service multiplex and decrypted by a single decryption engine to provide a desired decrypted multiplex. The desired decrypted multiplex is then demultiplexed so that the desired services can be decoded and provided to a user.
(FR)La présente invention concerne des procédés et un système de décryptage simultané de services multiples reçus dans des flots de transport multiplexés distincts. Plusieurs flots de transport multiplexés chiffrés peuvent être reçus au niveau d'un terminal de télévision. Chaque flot de transport peut comprendre au moins un service. Les flots de transport multiplexés peuvent être reçus, par exemple, par plusieurs dispositifs de syntonisation et/ou transmis à partir d'un dispositif de stockage, tel qu'un enregistreur polyvalent personnel (PVR). Plusieurs services désirés sont choisis à partir d'un sous-ensemble de flots de transport. Ces services désirés sont multiplexés en un multiplex de services désirés, et chiffrés par un seul moteur de chiffrement pour donner un multiplex déchiffré désiré. Le multiplex déchiffré désiré est ensuite démultiplexé de sorte que les services désirés puissent être décodés et fournis à un usager.
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, OM, PH, PL, PT, RO, RU, SD, SE, SG, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, 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)