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AssigneeCivolution B.V.
InventorsAlphons Antonius Maria Lambertus Bruekers, Arnoldus Johannes Lucas Maria Maandonks, Peter-Paul Mittertreiner, Johannes Francicus Echbertus Maria Verbruggen
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A method of controlling access to a resource using a verifying device uses watermarking device that embeds an authorization code in a signal using watermarking technology. The watermarked signal is then transmitted to a verifying device, e.g. as a television or radio program or as a commercial related to the resource. In the verifying device, the authorization code is extracted from the watermarked signal and an operation to be performed on the resource is authorized in dependence on the extracted authorization code. Preferably the authorization includes permission for executing a program, rendering and/or copying a multimedia object or for activating a cheat function in an electronic game.
A method of controlling access to a resource signal, comprising embedding an authorization code in a signal by means of a watermark and transmitting the watermarked signal to a verifying device, and in the verifying device, extracting the authorization code from the watermarked signal and authorizing an operation to be performed on the resource signal in dependence on the extracted authorization code, the resource signal including media content and being distinct from the watermarked signal.
A verifying device arranged for controlling access to a resource signal, comprising receiving means for receiving a watermarked signal, watermark detection means for detecting an authorization code embedded in the watermarked signal, and access control means for authorizing an operation to be performed on the resource signal in dependence on the extracted authorization code, the resource signal including media content and being distinct from the watermarked signal.
Dependencies are inferred from the claim text.