EP 1671320 A2 20060621 - DISC DRIVE APPARATUS
Title (en)
DISC DRIVE APPARATUS
Title (de)
PLATTENLAUFWERKVORRICHTUNG
Title (fr)
APPAREIL DU TYPE UNITE DE DISQUE
Publication
Application
Priority
- IB 2004051891 W 20040928
- EP 03103662 A 20031002
- EP 04770107 A 20040928
Abstract (en)
[origin: WO2005034103A2] A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means (30) with respect to the disc (2); a control circuit (90) for receiving said read signal (SR) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (SR), the control circuit (90) having at least one variable control parameter. The method comprises the steps of: deriving from said read signal (SR) at least two signals (REn; MIRn) of mutually different type; and varying the setting of said at least one variable control parameter as a function of said at least two signals.
IPC 1-7
IPC 8 full level
G11B 7/09 (2006.01)
CPC (source: EP KR)
G11B 7/09 (2013.01 - KR); G11B 7/0941 (2013.01 - EP); G11B 7/0946 (2013.01 - EP); G11B 7/0948 (2013.01 - EP); G11B 20/18 (2013.01 - KR)
Citation (search report)
See references of WO 2005034103A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005034103 A2 20050414; WO 2005034103 A3 20050825; CN 1860533 A 20061108; EP 1671320 A2 20060621; JP 2007507822 A 20070329; KR 20060088890 A 20060807; TW 200516572 A 20050516
DOCDB simple family (application)
IB 2004051891 W 20040928; CN 200480028591 A 20040928; EP 04770107 A 20040928; JP 2006530936 A 20040928; KR 20067006080 A 20060329; TW 93129437 A 20040929