초록 ▼

An arrangement, for verifying a playing authorization for an encrypted information signal reproduced by a reproducing device and for supplying a decrypted information signal when a playing authorization is available, includes a verification device for verifying a playing authorization for a reproduc

An arrangement, for verifying a playing authorization for an encrypted information signal reproduced by a reproducing device and for supplying a decrypted information signal when a playing authorization is available, includes a verification device for verifying a playing authorization for a reproduced encrypted information signal, and a decryption circuit for decrypting a reproduced encrypted information signal when a playing authorization is available. The arrangement further includes an interrogation device for independently requesting a playing authorization. The interrogation device includes a communication circuit which, in the absence of a playing authorization for a reproduced encrypted information signal, sets up a data link and supplies playing authorization request information to a playing authorization allocation device via the data link, and receives a playing authorization for the reproduced encrypted information signal from the playing authorization allocation device.

대표청구항 ▼

[ What is claimed is:] [1.]1. An arrangement for verifying a playing authorization for an information signal reproduced by a reproducing device cooperating with the arrangement when the reproduced information signal is encrypted, and for supplying a decrypted information signal corresponding to said

[ What is claimed is:] [1.]1. An arrangement for verifying a playing authorization for an information signal reproduced by a reproducing device cooperating with the arrangement when the reproduced information signal is encrypted, and for supplying a decrypted information signal corresponding to said reproduced encrypted information signal when a playing authorization is available, said arrangement comprising:verification means for receiving a reproduced information signal, and, if said reproduced information signal is encrypted, for supplying key information suitable for correctly decrypting the reproduced encrypted information signal when a playing authorization is available;decryption means for receiving said key information and for decrypting the reproduced encrypted information signal when said suitable key information is available; andinterrogation means for independently requesting a playing authorization,wherein the decryption means further serves as detection means for detecting whether said reproduced information signal is encrypted, and upon such detection, the interrogation means automatically and independently requests a playing authorization from playing authorization allocation means identified in the reproduced information signal.