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:
Jul. 13, 2010
Filed:
Nov. 14, 2006
Dayu Chen, Shanghai, CN;
Henk Goossens, Shanghai, CN;
Dayu Chen, Shanghai, CN;
Henk Goossens, Shanghai, CN;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a method and system for recording data by a plurality of laser beams (A, B) on an optical disc, said optical disc comprising segments which (-) are each identified by a synchronization pattern, said plurality of laser beams comprising at least a first laser beam (A) which has a first position on said optical disc for recording/reading data on a first segment and a second laser beam (B) which has a second position on said optical disc for recording data on a second segment, said method comprising the steps of: —calculating () said second position from said first position and the relative distance between said first laser beam and said second laser beam, —detecting () a synchronization pattern by said second laser beam, and —starting () to record data with said second laser beam on the basis of said second position and said detected synchronization pattern.