Information system in a motor vehicle

  • US 5,631,638 A
  • Filed: 07/08/1994
  • Issued: 05/20/1997
  • Est. Priority Date: 07/09/1993
  • Status: Expired due to Fees
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First Claim
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1. A rear-view mirror information display system for a motor vehicle having an on-board network for providing information as to various motor vehicle functions, the display system comprising a rear view mirror having a housing, a hollow arm connected with the housing for receiving an electrical cable connectable to the on-board network, a mirror glass having a reflectivity, said mirror glass mounted to the housing, said mirror glass comprising a pair of glass plates having an electrically sensitive substance therebetween for adjusting the reflectivity of the mirror glass, a light emitting display unit having multiple display segments, said light emitting display unit embedded within the mirror glass, each of said display segments being separately controlled by a segment driver to form a plurality of numbers and letters that are visually observable by a vehicle occupant, electrical circuit means mounted within said housing and connected with the electrical cable for receiving information from the on-board network, said electrical circuit means including central processing means, said segment driver, and mirror glass reflection control means for providing voltage to the electrically sensitive substance, said central processing means receiving information from the on-board network and controlling said segment driver to actuate said display segments to display information derived form the on-board network, said central processing means further controlling the mirror glass reflection control means to adjust the voltage applied to the electrically sensitive substance within the mirror glass, and further comprising a microphone within said rear-view mirror, said microphone connected to the onboard network of the vehicle.

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