Data terminal device
First Claim
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1. A data terminal device comprising:
- a position data receiving part for receiving position data transmitted from an artificial satellite;
a wireless unit for transmitting and receiving data with respect to a base station;
a detailed map data memory part for storing detailed map data received by the wireless part;
scale determining part for determining the scale of the road map according to a plurality of position data received a plurality of times by the position data receiving part; and
a display part for displaying the road map of the scale determined by the scale determining part and detailed map data stored in the memory part.
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Abstract
A position data receiving part receives position data transmitted from an artificial satellite. A wireless unit transmits and receives data with respect to a base station. A detailed map data memory part stores detailed map data received by the wireless part. Sale determining part determines the scale of the road map according to a plurality of position data received a plurality of times by the position data receiving part. A display part displays the road map of the scale determined by the scale determining part and detailed map data stored in the memory part.
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Citations
11 Claims
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1. A data terminal device comprising:
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a position data receiving part for receiving position data transmitted from an artificial satellite;
a wireless unit for transmitting and receiving data with respect to a base station;
a detailed map data memory part for storing detailed map data received by the wireless part;
scale determining part for determining the scale of the road map according to a plurality of position data received a plurality of times by the position data receiving part; and
a display part for displaying the road map of the scale determined by the scale determining part and detailed map data stored in the memory part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification