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Vehicle navigation system and method of generating updated map data for vehicle navigation system

  • US 7,769,541 B2
  • Filed: 05/17/2006
  • Issued: 08/03/2010
  • Est. Priority Date: 06/24/2005
  • Status: Active Grant
First Claim
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1. A vehicle navigation system comprising:

  • a map data read section configured to read first map data from a map database;

    a history information management section configured to manage history information that identifies a search result, the search result obtained based on applying search conditions specified by a user on the first map data;

    a map data acquisition section configured to acquire second map data including updated information that identifies said search result, the updated information identifying the search result subsequent to the acquisition of said second map data;

    a map data update section configured to generate updated map data using said first map data and said second map data; and

    wherein said map data update section is configured to generate said updated map data and store said updated map data as new first map data so that subsequent search results are obtained on the basis of the stored new first map data.

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