Fremgangsmåde ved autorisationskontrol samt indretning til udövelse af fremgangsmåden

摘要

The authorization control method has authorization data reproduced via a user interface (11) of a first electronic reproduction device (1), with alteration of the reproduction attributes during the reproduction of the authorization data and comparison of the reproduction with the reproduction of reference data via a user interface (21) of a second electronic reproduction device (2), for verifying synchronized alterations in the reproduction attributes. - Also included are Independent claims for the following: - (A) an authorization control system; - (B) a computer program product storing computer program codes for control of one or more processors in an authorization control system