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Method of controlling devices via speech signals, more particularly, in motorcars

  • US 7,165,027 B2
  • Filed: 08/22/2001
  • Issued: 01/16/2007
  • Est. Priority Date: 08/23/2000
  • Status: Active Grant
First Claim
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1. A method of controlling function units of a motorcar, or of devices (1a, 1b) installed in a motorcar, by means of speech signals, the method comprising the steps of:

  • receiving acoustic signals occurring in the motorcar, which contain noise signal portions and speech signal portions,applying the received acoustic signals to a speech recognition system (3), the speech recognition system using acoustic references (8) which are selected in dependence on the operating state and/or operation environment to determine an estimate of noise signal portions, andadapting the estimate of noise signal portions during at least one period containing a noise signal portion but no speech signal portion.

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