Methods and devices responsive to ambient audio

  • US 7,587,602 B2
  • Filed: 01/11/2006
  • Issued: 09/08/2009
  • Est. Priority Date: 05/19/1999
  • Status: Active Grant
First Claim
Patent Images

1. A device comprising a housing sized for carrying in a user'"'"'s pocket and including:

  • a transducer to receive ambient audio and to output electrical signals corresponding thereto;

    a watermark detector system coupled to the transducer and adapted to produce payload information by extracting a digital watermark embedded in the electrical signals corresponding to the ambient audio;

    a memory storing first identification information; and

    an interface that receives at least some of both the decoded payload information and the first identification information for transmission from said device;

    wherein the watermark detector system is adapted to decode watermarks encoded by plural different techniques.

View all claims

    Thank you for your feedback