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:
Sep. 20, 2011
Filed:
Jun. 25, 2010
Johannis Friso Rendert Blacquiere, Eindhoven, NL;
Declan Patrick Kelly, Eindhoven, NL;
Johannis Friso Rendert Blacquiere, Eindhoven, NL;
Declan Patrick Kelly, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method is described for writing an optical disc () having a multi-layered storage space () comprising at least a first storage layer () and a second storage layer () below the first layer (). The method comprises the step of preventing a write operation to a portion of the second storage layer () located below a maiden portion of said first storage layer (). In one embodiment, all blocks () which are physically located in the second storage layer () are incorporated in a defect list (DL) until a sufficiently large portion of the first storage layer () has been written at least once. In another embodiment, all blocks () which are physically located in the second storage layer () are covered by a system file with a predetermined name ('DUMMY') until a sufficiently large portion of the first storage layer () has been written at least once.