The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2009
Filed:
Aug. 23, 2004
Anthonius Petrus Gerardus Emanuel Janssen, Eindhoven, NL;
Jacobus Maarten Den Hollander, Eindhoven, NL;
Anthonius Petrus Gerardus Emanuel Janssen, Eindhoven, NL;
Jacobus Maarten Den Hollander, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method for reading data from a track () of a data carrier () comprises the following steps. During reading, a tracking quality parameter (Q) is determined, relating to a track portion (Px) of the data carrier from which the data is being read. The tracking quality parameter is stored in a tracking performance memory () in relation to the corresponding track portion (Px). If a jump back to a previously read track portion appears to be necessary, said tracking performance memory () is consulted to determine a target track portion (P(x-n)) having a sufficient value of the tracking quality parameter (Q); then, a jump back (JB) to the target track portion (P(x-n)) thus determined is performed.
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