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. 28, 2011
Filed:
Nov. 17, 2009
Roger Lagadec, Regensdorf, CH;
Renato Cantini, Belfaux, CH;
Bruno Messmer, Thun, CH;
Swisscom AG, Bern, CH;
Abstract
The invention relates to an authorization verification method and devices suited therefor, which play back authorization data via a user interface () of an electronic playback device (). During the playback of authorization data via the user interface () of a first playback device (), the playback attributes are modified. The playback of authorization data via the user interface () of the first playback device () is compared with the playback of reference data via a user interface () of a second electronic playback device (). Authorization is granted in the event the playback of authorization data via the user interface () of the first playback device () matches the playback of reference data via the user interface () of the second playback device (), and modifications of the playback attributes are, in essence, time-synchronized. The dynamic modification of the playback attributes during the playback of authorization data and playback of the reference data render practically impossible the unauthorized copying of image contents or audio contents for falsifying an authorization. In addition, a simultaneous playback of authorization data and reference data render unnecessary inquiries made to an authorization center ().