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Portable navigation device

  • US 20070273624A1
  • Filed: 08/02/2007
  • Published: 11/29/2007
  • Est. Priority Date: 03/08/2006
  • Status: Abandoned Application
First Claim
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1. A method for automatically adjusting visibility of a portable navigation device display, the method comprising the steps of:

  • allocating display settings for at least one ambient lighting condition, monitoring a signal indicative of current ambient lighting condition, evaluating said signal, selecting a display setting allocated to said current ambient lighting condition, determining if a current display setting is the selected display setting, and changing said current display setting to said selected display setting if said current setting is not said selected display setting.

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