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Parking aid

  • US 6,211,833 B1
  • Filed: 12/23/1999
  • Issued: 04/03/2001
  • Est. Priority Date: 12/23/1998
  • Status: Expired due to Term
First Claim
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1. A device for detecting whether obstacles are being approached during parking or turning of a motor vehicle, comprising:

  • a support plate;

    a transmitting and receiving device disposed adjacent at least one bumper and including an RF circuit disposed on said support plate and at least two substantially planar antennas for interacting with said RF circuit;

    a plastic sheet fixed to said substantially planar antennas;

    a printed circuit board having perforations allowing for passage of radiation from said RF circuit to said substantially planar antennas; and

    spacers having a precise length, each one of said spacers being inserted into a respective one of said perforations;

    said plastic sheet bonded to said printed circuit board such that each one of said substantially planar antennas bear on a respective one of said spacers.

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