×

Protection of data on media recording disks

  • US 7,031,470 B1
  • Filed: 08/16/1999
  • Issued: 04/18/2006
  • Est. Priority Date: 01/22/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for protecting access to content recorded on a media recording disk (DVD), comprising:

  • providing a disk security chip on the DVD, said disk security chip managing access to the content of the DVD;

    providing a corresponding player security chip in a DVD player which is operative to play the DVD, said player security chip managing use of a data stream received from the DVD, said disk security chip being in wireless communication with said player security chip; and

    providing said disk security chip with a disk key not known to a disk manufacturer,wherein said disk security chip, after assuring that said DVD player is authentic, sends said DVD player said disk key.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×