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Digital audio device

  • US 7,653,206 B2
  • Filed: 10/31/2002
  • Issued: 01/26/2010
  • Est. Priority Date: 11/01/2001
  • Status: Expired due to Fees
First Claim
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1. A digital audio device, comprising:

  • a memory;

    an analog input system configured to record analog audio signals to the memory as digital audio data;

    a digital input configured to download digital audio data, through digital data transmission, to the memory;

    an analog output system configured to generate analog playback signals decoded from digital audio data stored in the memory;

    a digital output configured to upload digital audio data, through digital data transmission, from the memory; and

    a trade connector including a contact configured to mate and cooperate with a complementarily configured and structurally identical contact on a second digital audio device having a structural configuration substantially identical to the digital audio device.

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