Patent · US Active

Method for copy protection

US8717857B2 · kind B2 · utility

4Cited by

1References

24Claims

0Family size

Assignee

SONY DADC AUSTRIA AG · AT

Inventors

Markus Spitzlinger · Elsbethen, AT
Andreas Winter · Feldkirch, AT
Walter Hinterhoelzl · Salzburg, AT
Peter Eisenmann · Salzburg, AT
Klaus Holzapfel · Ascheberg, DE
Dominik Engel · Salzburg, AT
Juergen Gruenberger · Mödling, AT

Key dates

Filing date	May 19, 2010
Grant date	May 6, 2014
Priority date	—
Expiry date	May 19, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04N2005/91364
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for copy protection in which an audiovisual or audio data is divided into a plurality of portions. The plurality of portions is at least partly scrambled and prepared so as to be stored on a record carrier in the scrambled order. This is done so that a physical position on the record carrier, e.g., a sector of the record carrier, where a respective portions of the divided data is stored depends on the scrambled order.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.