EP 1733391 A1 20061220 - METHOD OF AND DEVICE FOR ASCERTAINING DUE PRESENCE OF A DISC-SHAPED DATA CARRIER IN A NOMINAL POSITION
Title (en)
METHOD OF AND DEVICE FOR ASCERTAINING DUE PRESENCE OF A DISC-SHAPED DATA CARRIER IN A NOMINAL POSITION
Title (de)
VERFAHREN UND EINRICHTUNG ZUR BESTIMMUNG DER ORDNUNGSGEMÄSSEN ANWESENHEIT EINES SCHEIBENFÖRMIGEN DATENTRÄGERS IN EINER NOMINALPOSITION
Title (fr)
PROCEDE ET DISPOSITIF PERMETTANT DE GARANTIR LA PRESENCE D'UN SUPPORT DE DONNEES EN FORME DE DISQUE DANS UNE POSITION NOMINALE
Publication
Application
Priority
- IB 2005050790 W 20050303
- EP 04101232 A 20040325
- EP 05708926 A 20050303
Abstract (en)
[origin: WO2005093744A1] In a method of and a device for ascertaining due presence of a disc- shaped data carrier (8), for example a CD or DVD, in a playback unit (1), it is provided that use is made of a data carrier (8) having a transmission path which starts at a first boundary surface of the data carrier (8) and passes through the data carrier (8) and ends at a second boundary surface of the data carrier (8), which transmission path is transparent to a test beam, and wherein an optical test beam is provided, and wherein the test beam is passed through the data carrier (8) using the transmission path when the data carrier (8) is present in the nominal position, and wherein the test beam passed through the data carrier (8) using the transmission path is detected.
IPC 8 full level
G11B 19/10 (2006.01)
CPC (source: EP)
G11B 19/10 (2013.01)
Citation (search report)
See references of WO 2005093744A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005093744 A1 20051006; CN 1954382 A 20070425; EP 1733391 A1 20061220; JP 2007531184 A 20071101; TW 200638339 A 20061101
DOCDB simple family (application)
IB 2005050790 W 20050303; CN 200580015847 A 20050303; EP 05708926 A 20050303; JP 2007504517 A 20050303; TW 94113992 A 20050429