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. 12, 2013
Filed:
Feb. 13, 2012
Kenjiro Ueda, Tokyo, JP;
Klaus Holzapfel, Kuchl, AT;
Andreas Winter, Viehhausen, AT;
Markus Spitzlinger, Elsbethen, AT;
Kenjiro Ueda, Tokyo, JP;
Klaus Holzapfel, Kuchl, AT;
Andreas Winter, Viehhausen, AT;
Markus Spitzlinger, Elsbethen, AT;
Abstract
A method for copy protection includes providing audiovisual or audio data stored in sectors of a record carrier having a file system, and providing additional data to be stored in further sectors. The method includes generating first and second files referencing respective first and second parts of the sectors and respective further first and second parts of the further sectors, so when the first and second files are completely rendered by a playback device, respective first and second parts of the data and respective further first and second parts of the additional data are reproduced. The method also includes determining program instructions, which when executed by the playback device, control switching between reading the first file and the second file, and when the record carrier is an original, switching is controlled so only the sectors and none of the further sectors are read such that no additional data is reproduced.