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Navigation device for receiving satellite broadcast distribution of map data

  • US 6,694,253 B2
  • Filed: 10/09/2001
  • Issued: 02/17/2004
  • Est. Priority Date: 10/09/2001
  • Status: Expired due to Fees
First Claim
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1. A navigation device comprising:

  • a central processing unit;

    a computer storage medium in communication with the central processing unit;

    a satellite broadcast receiver in communication with the central processing unit and with the computer storage medium, wherein the receiver receives broadcast map data; and

    a direction sensor, in communication with the central processing unit, that determines a travel heading of the navigation device, wherein the broadcast map data is stored in the computer storage medium as a function of the travel heading of the navigation device.

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