×

Arrangement for independently requesting a playing authorization for a reproduced encrypted information signal

  • US 6,308,269 B2
  • Filed: 07/07/1998
  • Issued: 10/23/2001
  • Est. Priority Date: 07/11/1997
  • Status: Expired due to Term
First Claim
Patent Images

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; and

    interrogation 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.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×