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1. (WO2003010722) METHOD FOR LOCAL RECORDING OF TELEVISION DIGITAL DATA
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2003/010722 International Application No.: PCT/EP2002/008207
Publication Date: 06.02.2003 International Filing Date: 23.07.2002
Chapter 2 Demand Filed: 24.02.2003
IPC:
G11B 20/00 (2006.01) ,H04N 5/913 (2006.01) ,H04N 7/167 (2011.01)
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
20
Signal processing not specific to the method of recording or reproducing; Circuits therefor
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
76
Television signal recording
91
Television signal processing therefor
913
for scrambling
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
16
Analogue secrecy systems; Analogue subscription systems
167
Systems rendering the television signal unintelligible and subsequently intelligible
Applicants:
SCM MICROSYSTEMS GMBH [DE/DE]; Oskar-Messter-Strasse 13 85737 Ismaning, DE (AllExceptUS)
LOISEL, Yann [FR/FR]; FR (UsOnly)
Inventors:
LOISEL, Yann; FR
Agent:
DEGWERT, Hartmut; Prinz & Partner Manzingerweg 7 81241 München, DE
Priority Data:
101 35 888.124.07.2001DE
Title (EN) METHOD FOR LOCAL RECORDING OF TELEVISION DIGITAL DATA
(FR) PROCEDE D'ENREGISTREMENT LOCAL DE DONNEES NUMERIQUES POUR LA TELEVISION
Abstract:
(EN) The invention concerns a method for local recording of digital data received by a transmission network, which consists in encrypting the digital data received with a local recording key (KLEA) and in locally storing the encrypted data (7). The method is characterised in that it comprises the following steps: generating a content key (CK), combining the content key (CK) and a base key (BK) to obtain the local recording key (KLEA), jointly storing the content key (CK) and the encrypted data (7) with the local recording key (KLEA). The invention is particularly applicable to local recording of digital data derived from digital television broadcasting.
(FR) La présente invention concerne un procédé d'enregistrement local de données numériques reçues par un réseau de transmission, dans lequel on crypte les données numériques reçues avec une clé locale d'enregistrement (KLEA) et on stocke localement les données cryptées (7). Selon ce procédé, on effectue les étapes suivantes: on génère une clé de contenu (CK), on combine la clé de contenu (CK) et une clé de base (BK) pour obtenir la clé locale d'enregistrement (KLEA), on stocke conjointement la clé de contenu (CK) et les données cryptées (7) avec la clé locale d'enregistrement (KLEA).L'invention s'appliquera tout particulièrement à l'enregistrement local de données issues de diffusion de télévision numérique.
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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, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (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, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
ES2281538EP1410342US20040190872DE000060218315PT1410342AU2002328578