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System and method of wirelessly triggering portable devices

  • US 7,881,713 B2
  • Filed: 02/26/2007
  • Issued: 02/01/2011
  • Est. Priority Date: 12/05/2001
  • Status: Active Grant
First Claim
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1. A method of providing additional audio/video information during a movie to viewers in a theater, comprising:

  • providing a viewer of a movie with a portable device, the portable device being pre-programmed with data representing audio/video information related to the movie presentation;

    wirelessly transmitting at least one time code during the movie, the time code being a time from a start of the presentation;

    receiving the at least one time code at the device;

    processing the at least one time code in the device to determine an offset into a presentation data file as to where to start playback of audio/video information; and

    displaying the audio/video information on the device in synchronization with the movie.

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