EP 1214710 A1 20020619 - DATA MEMORY
Title (en)
DATA MEMORY
Title (de)
DATENSPEICHER
Title (fr)
MEMOIRE DE DONNEES
Publication
Application
Priority
- DE 19947782 A 19990924
- EP 0007379 W 20000731
Abstract (en)
[origin: DE19947782A1] The invention relates to a data memory comprising an optical information carrier which has several layers (10) of a polymer carrier (11) through which information can be read out of a preselected polymer carrier layer (10) and, optionally, can be written into a preselected polymer carrier layer (10). The information carrier is formed around an optically transparent core whose refractive index differs from the refractive index of the polymer carrier (11) by less than 0.08.
IPC 1-7
IPC 8 full level
G11B 7/0025 (2006.01); G11B 7/24006 (2013.01); G11B 7/24038 (2013.01); G11B 7/24067 (2013.01); G11B 7/003 (2006.01)
CPC (source: EP)
G11B 7/0025 (2013.01); G11B 7/003 (2013.01)
Citation (search report)
See references of WO 0124172A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19947782 A1 20010405; EP 1214710 A1 20020619; JP 2003510748 A 20030318; WO 0124172 A1 20010405
DOCDB simple family (application)
DE 19947782 A 19990924; EP 0007379 W 20000731; EP 00956357 A 20000731; JP 2001527277 A 20000731