×

Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information

  • US 7,765,605 B2
  • Filed: 05/26/2006
  • Issued: 07/27/2010
  • Est. Priority Date: 05/30/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. A transmitting device, comprising:

  • means for receiving main information;

    processing means for error encoding the main information into error words using error correcting rules, and cross interleaving the error words, and representing auxiliary information as a pattern including error words containing uncorrectable errors that are not correctable using the error correcting rules; and

    means for transmitting cross interleaved information containing the uncorrectable errors representing the auxiliary information, the means for transmitting including means for writing the cross interleaved information containing the uncorrectable errors onto an optical record carrier, the pattern also including error words that are correct or correctable using the error correcting rules, the auxiliary information being capable of affecting the control of the operation of a record carrier reading device.

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