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1. (WO1997016896) CRYPTOSYSTEM FOR OPTICAL STORAGE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016896 International Application No.: PCT/SE1996/001391
Publication Date: 09.05.1997 International Filing Date: 30.10.1996
Chapter 2 Demand Filed: 13.05.1997
IPC:
G06F 21/80 (2013.01) ,G11B 20/00 (2006.01) ,G11B 20/18 (2006.01) ,H04N 5/913 (2006.01) ,G06F 1/00 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
70
Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
78
to assure secure storage of data
80
in storage media based on magnetic or optical technology, e.g. disks with sectors
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
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
10
Digital recording or reproducing
18
Error detection or correction; Testing
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
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
1
Details not covered by groups G06F3/-G06F13/82
Applicants:
OBDUCAT AB [SE/SE]; Forskarbyn Ideon S-223 70 Lund, SE (AllExceptUS)
JIAWOOK, Rizgar, Nabi [SE/SE]; SE (UsOnly)
HEIDARI, Babak [SE/SE]; SE (UsOnly)
OLSSON, Lennart [SE/SE]; SE (UsOnly)
Inventors:
JIAWOOK, Rizgar, Nabi; SE
HEIDARI, Babak; SE
OLSSON, Lennart; SE
Agent:
HANSSON, Anders ; Hansson Thyresson Patentbyrå AB P.O. Box 73 S-201 20 Malmö, SE
Priority Data:
9503838-630.10.1995SE
Title (EN) CRYPTOSYSTEM FOR OPTICAL STORAGE
(FR) SYSTEME DE CHIFFREMENT POUR MEMORISATION OPTIQUE
Abstract:
(EN) A method of encrypting and decrypting digital data such as text, numeric, images, pictures, especially tailored for optical compact discs; said method comprising of ciphering/deciphering and error detection and correction using algebraic method, namely Reed-Solomon code.
(FR) Procédé de chiffrement et de déchiffrement de données numériques, telles que des textes, des nombres ou des images, conçu particulièrement pour des disques optiques compacts. Ce procédé consiste à effectuer le chiffrement et le déchiffrement, ainsi que la détection et la correction d'erreurs au moyen d'une méthode algébrique, à savoir, le codage de Reed-Solomon.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0858696US6125183AU1996075119