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Device having a digital interface and a network system using such a device and a copy protection method

  • US 5,987,126 A
  • Filed: 03/13/1998
  • Issued: 11/16/1999
  • Est. Priority Date: 07/15/1996
  • Status: Expired due to Term
First Claim
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1. A device having a digital interface comprising:

  • a first detector which detects, from data in a predetermined data format containing copy generation management information said copy generation management information; and

    a first interface which converts said data in said predetermined format to data in a data format of a network bus, and inserts said copy generation management information, based on a detection result of said first detector, in a data format corresponding to said data format of said network bus into said data after format conversion before sending said data to said network bus.

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