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:
Jun. 11, 2013
Filed:
Jul. 19, 2004
Sabine Terranova, Stuttgart, DE;
Alexander Vollschwitz, Stuttgart, DE;
Sabine Terranova, Stuttgart, DE;
Alexander Vollschwitz, Stuttgart, DE;
Sony Deutschland GmbH, Cologne, DE;
Abstract
The present invention relates to digital data comprising a passive part () comprising content () to be protected in encrypted form, an active part () comprising information () how to decrypt the content () comprised in the passive part () and a hidden part (), wherein the active part () and the corresponding passive part () constitute an active content () and the hidden part () comprising information () about properties of the respective active content () and/or respective active part () and/or the respective passive part (). The active part () of the active content () additionally comprises rules () to allow and/or forbid decryption of the content () comprised in the passive part () of the active content () based on the information () comprised in the hidden part (). With that neither a central database has to be accessed nor a special hardware has to be provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile