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Voice-controlled motorized wheelchair with sensors and displays

  • US 6,108,592 A
  • Filed: 05/07/1998
  • Issued: 08/22/2000
  • Est. Priority Date: 05/07/1998
  • Status: Expired due to Term
First Claim
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1. A motorized wheelchair for a user with severely limited mobility and with auditory and/or visual deficits comprising:

  • sensing means mounted on the wheelchair for detecting obstacles and generating an output signal indicating a distance, a size and a direction of a detected obstacle;

    a first computer responsive to the output signal of the sensing means for processing the signal to generate visual and auditory displays;

    a visual and auditory display device responsive to the first computer for providing the user with a warning, the distance size, and direction of an obstacle;

    a microphone mounted on the wheelchair for generating signals in response to the user'"'"'s voice commands based on signals from the visual and auditory display device; and

    a second computer responsive to the microphone generated signals for processing the signals using a speech recognition program, the second computer generating output control signals to the wheelchair in response to recognized commands from the user.

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