Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2007-10-30
2007-10-30
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S059220, C369S059210
Reexamination Certificate
active
10527894
ABSTRACT:
A wobble signal is generated from at least two elementary signals (A,B,C,D) detected by scanning a wobbled track of a data carrier. The invention proposes a solution for eliminating the noise of various origins in the wobble signal, notably the high frequency data leakage into the wobble signal due to radial asymmetry introduced in the diffraction pattern on the detector, whatever the reason for this radial asymmetry. According to the invention, the at least two elementary signals are filtered with at least an adaptive filter (40), and said filtered elementary signals are subtracted (44) from said wobble signal (PP) thereby generating an improved wobble signal.
REFERENCES:
patent: 4866688 (1989-09-01), Ohtake et al.
patent: 5434834 (1995-07-01), Shinoda et al.
patent: 5631892 (1997-05-01), Bakx
patent: 5892740 (1999-04-01), Nagasawa et al.
patent: 6175540 (2001-01-01), Kim
patent: 6507544 (2003-01-01), Ma et al.
patent: 6781104 (2004-08-01), Braat
patent: 7110333 (2006-09-01), Oh
patent: 2002/0036997 (2002-03-01), Kim et al.
patent: 2003/0095481 (2003-05-01), Williams et al.
patent: 2007/0053261 (2007-03-01), Frisson et al.
patent: 2007/0097826 (2007-05-01), Iimura et al.
Jansen Theodorus Petrus Henricus Gerardus
Meftah Mohammed
Padiy Alexander
Schep Cornelis Marinus
Stek Aalbert
Koninklijke Philips Electronics N. V.
Nguyen Linh T.
Young Wayne
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