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Portable devices and methods employing digital watermarking

  • US 7,171,018 B2
  • Filed: 05/15/2002
  • Issued: 01/30/2007
  • Est. Priority Date: 07/27/1995
  • Status: Expired due to Fees
First Claim
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1. A method of operating a portable device that includes a sensor to capture image or audio data, comprising:

  • transferring the captured data to a remote device;

    decoding a watermark at the remote device; and

    returning corresponding data to the portable device.

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  • 6 Assignments
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