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Method and system for improving communication in a vehicle

  • US 7,415,116 B1
  • Filed: 11/09/2000
  • Issued: 08/19/2008
  • Est. Priority Date: 11/29/1999
  • Status: Expired due to Fees
First Claim
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1. A method for improving communication in a vehicle, comprising:

  • assigning at least one occupant in an area of a seat inside the vehicle with a respective microphone;

    picking up a voice signal of the at least one occupant of the vehicle by the respective microphone;

    amplifying the picked-up voice signal in an input stage;

    filtering the amplified picked-up voice signal for purposes of interference level minimization and frequency adaptation;

    providing a voice-output device, the voice-output device including at least one loudspeaker configured to output the voice signal, each loudspeaker of the at least one loudspeaker being associated with at least one output channel;

    signal processing the amplified and filtered voice signal of the at least one occupant via a summing and distribution stage, the signal processing being specific to each respective at least one output channel in the form of a delay correction and a level differentiation in a process stage as a function of a local allocation of the microphone that picked up the voice signal and as a function of a local allocation of the at least one loudspeaker of the voice-output device;

    assigning the processed voice signal on an individual basis for each respective at least one output channel to the at least one loudspeaker of the voice-output device via an adaptation stage; and

    tuning an adaptation of the processed voice signal via a level adaptation and a frequency adaptation in the adaptation stage to a spatial condition of the vehicle and to a desired sound level.

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