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Disruption of speech understanding by adding a privacy sound thereto

  • US 7,363,227 B2
  • Filed: 10/27/2006
  • Issued: 04/22/2008
  • Est. Priority Date: 01/10/2005
  • Status: Expired due to Fees
First Claim
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1. A system for disrupting speech of a talker at a listener in an environment, the system comprising:

  • a speech database comprising speech that is at least partly other than speech from the talker;

    a processor; and

    at least one speaker,wherein the processor is configured to;

    access the speech database;

    select a subset of the speech database based on at least one characteristic of the talker; and

    form at least one speech stream from the subset of the speech database, the speech stream for output on the at least one speaker, the at least one speech stream being formed by selecting a plurality of speech signals from the subset of the speech database and by generating at least one privacy output signal for output on the at least one speaker, the at least one privacy output signal comprised of the speech signals being summed with one another so that the speech signals at least partly overlap one another.

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