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Digital watermarking methods and related toy and game applications

  • US 7,502,759 B2
  • Filed: 05/02/2002
  • Issued: 03/10/2009
  • Est. Priority Date: 08/30/1999
  • Status: Active Grant
First Claim
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1. A toy system comprising:

  • a plurality of toy components, each bearing a digital watermark imperceptibly embedded on a surface of the component;

    an image capture device; and

    a programmed computer coupled to the image capture device and operable to receive images of the toy components, and in response to the images, decoding digital watermarks from the images and executing actions associated with the digital watermarks;

    wherein different actions are respectively associated with the toy components, and wherein the programmed computer is operable to execute different actions in response to receiving separate instances of images captured of the same toy component.

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