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Data communication system

  • US 20020046285A1
  • Filed: 09/25/2001
  • Published: 04/18/2002
  • Est. Priority Date: 09/25/2000
  • Status: Abandoned Application
First Claim
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1. A data communication system comprising a server having a first storage device in which a database is formed, and a mobile communication device for connecting to said server through a network line, wherein:

  • said mobile communication device includes;

    a second storage device for storing a plurality of data signals each having different data types related to a mobile unit;

    update condition holding means for previously holding an update condition for each of the data types; and

    transmitting means for transmitting each of the data signals stored in said second storage device at a timing corresponding to an update condition held in said update condition holding means for each of the data types, and said server includes means for receiving a data signal transmitted from said transmitting means through said network line and for writing the received data signal into said first storage device to update the database.

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