System for processing broadcast stream comprises a human-perceptible broadcast program embedded with a plurality of human-imperceptible sets of information

  • US 6,021,432 A
  • Filed: 02/06/1997
  • Issued: 02/01/2000
  • Est. Priority Date: 10/31/1994
  • Status: Expired due to Term
First Claim
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1. A method for processing broadcast information, comprising the steps of:

  • (a) receiving, by an information processing device, a broadcast stream comprising a human-perceptible broadcast program embedded with a plurality of human-imperceptible sets of information, each set of information corresponding to one of a plurality of available types of information, wherein;

    the human-perceptible broadcast program can be directly perceived by a person; and

    the information in the human-imperceptible sets of information cannot be directly conveyed to a person without first being processed by an information processing device;

    (b) automatically analyzing, by the information processing device, the broadcast stream to identify a subset of information in the broadcast stream corresponding to one or more preselected types of information identified in a personal profile stored in the information processing device; and

    (c) processing, by the information processing device, the subset of information to present the subset of information in a human-perceptible form to a user.

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