Global Patent Index - EP 1159742 A1

EP 1159742 A1 20011205 - ANTIHACKING OPTICAL RECORDING DISC AND METHOD FOR READING SAME

Title (en)

ANTIHACKING OPTICAL RECORDING DISC AND METHOD FOR READING SAME

Title (de)

MIT KOPIERSCHUTZMITTLEN VERSEHENE OPTISCHE AUFZEICHNUNGSPLATTE SOWIE WIEDERGABEVERFAHREN

Title (fr)

DISQUE D'ENREGISTREMENT OPTIQUE ANTI-PIRATAGE ET PROCEDE DE LECTURE D'UN TEL DISQUE

Publication

EP 1159742 A1 20011205 (FR)

Application

EP 99958304 A 19991210

Priority

  • FR 9903103 W 19991210
  • FR 9815833 A 19981215

Abstract (en)

[origin: FR2787232A1] The invention concerns a recording disc comprising a main spiral track (1) and a section of secondary track (2) inserted between two successive turns of the main track. A use zone (3) comprises data (30) concerning the type of the antihacking disc and data (31) concerning the relative positioning of the section (2), which the disc player reaches by going to an address (A) of the main track and by skipping over the track (10). The section is then identified by identification data which it bears and then the disc physical structure is verified for its conformity with that described in the initialising zone. The invention is applicable to provide any optical disc, in particular CD or DVD with antihacking.

IPC 1-7

G11B 20/00

IPC 8 full level

G11B 20/12 (2006.01); G11B 7/007 (2006.01); G11B 19/04 (2006.01); G11B 19/12 (2006.01); G11B 20/00 (2006.01); G11B 20/10 (2006.01); G11B 23/28 (2006.01)

CPC (source: EP US)

G11B 7/00736 (2013.01 - EP US); G11B 19/04 (2013.01 - EP US); G11B 19/12 (2013.01 - EP US); G11B 20/00086 (2013.01 - EP US); G11B 20/00586 (2013.01 - EP US); G11B 23/281 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

FR 2787232 A1 20000616; FR 2787232 B1 20010223; AU 1569400 A 20000703; EP 1159742 A1 20011205; JP 2002532820 A 20021002; US 6452886 B1 20020917; WO 0036601 A1 20000622

DOCDB simple family (application)

FR 9815833 A 19981215; AU 1569400 A 19991210; EP 99958304 A 19991210; FR 9903103 W 19991210; JP 2000588767 A 19991210; US 60088700 A 20000815