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Proprietary portable audio player system for protecting digital content copyrights

  • US 20070265974A1
  • Filed: 05/11/2007
  • Published: 11/15/2007
  • Est. Priority Date: 05/15/2006
  • Status: Active Grant
First Claim
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1. A proprietary portable audio player system for protecting digital content copyrights, comprising:

  • a proprietary portable audio player, which has a hardware unique device identity and a playback token acquirement mode, plays a music file with a compression format and uses a first transmission medium to link an online music server to thereby obtain a playback token for playback of the music file;

    a web access interface, which provides the proprietary portable audio player (PPAP) to access the online music server, wherein the PPAP uses the web access interface to notice the online music server for accessing a designated playback token or music file through the first transmission medium when the designated playback token or music file is selected; and

    an online music server, which has said playback token acquirement mode and pre-stores a plurality of music files with compression formats, a plurality of playback tokens corresponding to music files with the compression format and a mapping table; and

    a copyright protection mechanism, which protects copyright of music file by limiting and managing playback authority, and only when both the song identity field and the device identity field are matching, the music file can be played;

    wherein each said playback token has a song identity field and a device identity field, and when a playback token signal from the web access interface is received, the online music server accordingly issues the playback token of the music file, updates the mapping table and sends the playback token to the PPAP through the first transmission medium.

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