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Audio recording and playback system

  • US 8,024,057 B2
  • Filed: 05/06/2009
  • Issued: 09/20/2011
  • Est. Priority Date: 12/01/1999
  • Status: Expired due to Fees
First Claim
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1. An audio recording and playback system comprising:

  • (A) an encoded substrate comprising a printed position-coding pattern identifying an identity of the substrate and a plurality of locations on the substrate;

    (B) a handheld electronic pen for interacting with said encoded substrate, said pen comprising;

    a microphone for recording audio;

    an audio output device for playing said recorded audio;

    an image sensor for capturing images of at least part of the position-coding pattern;

    a processor configured for determining the identity of the substrate and one or more positions on said substrate using captured images of the position-coding pattern;

    means for associating recorded audio with the identity of the substrate and one or more positions on said substrate;

    means for storing said recorded audio associated with the identity of the substrate and said one or more positions; and

    an electronic display extending along a longitudinal axis of the pen for displaying information to a user,wherein, in an audio recording mode, said pen is configured to;

    activate said microphone for recording audio;

    determine, using said image sensor and said processor, the identity of the substrate and one or more positions on said encoded substrate during interaction with said substrate; and

    associate the identity of the substrate and said one or more positions with said recorded audio,and further wherein, in an audio playback mode, said pen is configured to;

    determine, using said image sensor and said processor, the identity of the substrate and one or more positions on said encoded substrate;

    retrieve recorded audio associated with the identity of the substrate and said one or more positions; and

    playback said recorded audio via said audio output device.

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