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Method and apparatus for storing, accessing, generating and using information about speed limits and speed traps

  • US 6,675,085 B2
  • Filed: 08/16/2001
  • Issued: 01/06/2004
  • Est. Priority Date: 08/17/2000
  • Status: Active Grant
First Claim
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1. A control method comprising the steps of:

  • determining a first speed limit, corresponding to an area to be entered, as a function of both position information and a direction of travel, from stored information indicating the legal speed limit at each of a plurality of different geographic locations;

    determining a second speed limit, corresponding to a current position as a function of said position information, from said stored information indicating the legal speed limit at each of a plurality of different geographic locations; and

    performing, when said first determined speed limit is lower than said second determined speed limit, a control operation as a function of said first determined speed limit.

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