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ARRANGEMENT FOR INDEPENDENTLY REQUESTING A PLAYING AUTHORIZATION FOR A REPRODUCED ENCRYPTED INFORMATION SIGNAL

  • US 20010013022A1
  • Filed: 07/07/1998
  • Published: 08/09/2001
  • Est. Priority Date: 07/11/1997
  • Status: Active Grant
First Claim
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1. An arrangement (1) for verifying a playing authorization for a reproduced encrypted information signal—

  • which is reproduced by means of a reproducing device (2, 3) adapted to cooperate with the arrangement (1)—

    and for supplying a decrypted information signal when a playing authorization is available, comprising verification means (19) arranged to receive a reproduced encrypted information signal and adapted to supply key information (S) suitable for correctly decrypting the reproduced encrypted information signal when a playing authorization is available, and decryption means (32) arranged to receive key information (S) and adapted to decrypt the reproduced encrypted information signal when suitable key information (S) is available, characterized in that the arrangement (1) is equipped with interrogation means (35, 43) for independently requesting a playing authorization.

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