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Copyright protecting method, recording method, recording apparatus, reproduction method and reproduction apparatus

  • US 20020041686A1
  • Filed: 05/09/2001
  • Published: 04/11/2002
  • Est. Priority Date: 05/10/2000
  • Status: Abandoned Application
First Claim
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1. A copyright protecting method of scrambling an information signal inputted via an input path and outputting it via an output path, the information signal corresponding to contents which are protected under copyright, including copy control information, and being scrambled by means of a predetermined type of scramble system, the copyright protecting method comprising:

  • a discriminating step of discriminating the type of the scramble system of the inputted information signal and the type of the copy control information of the inputted information signal; and

    a scramble system applying step of applying a predetermined scramble system to the inputted information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path.

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