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  • US 20050265701A1
  • Filed: 05/20/2005
  • Published: 12/01/2005
  • Est. Priority Date: 04/21/1999
  • Status: Abandoned Application
First Claim
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1. An information playback apparatus comprising:

  • a first acquisition unit configured to acquire first expansion information from an information storage medium;

    a first storage unit configured to store the first expansion information acquired by the first acquisition unit;

    a second acquisition unit configured to acquire second expansion information from an external apparatus via a communication line;

    a second storage unit configured to store the second expansion information acquired by the second acquisition unit;

    a transfer unit configured to transfer the second expansion information stored in the second storage unit to the first storage unit in response to a request that requires the second expansion information; and

    a playback unit configured to play back the first expansion information and the second expansion information stored in the first storage unit.

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