Mobile communication terminal and map display system
First Claim
1. A mobile communication terminal which is one of a handheld cellular phone, a PDA, and a PHS, and is moved between a plurality of areas, the mobile communication terminal comprising:
- a position-designating-section for designating at least one desired geographic position by a user prior to measuring a present position and issuing an instruction for map display, wherein the designated position is different from the present position of the terminal;
a map-data-obtaining-section for requesting and obtaining prior to measuring the present position and issuing the instruction for map display, in a first location area different from the designated position, advance map data of the designated position via a communication network;
a storage for storing prior to measuring the present position and issuing the instruction for map display the advance map data which is obtained in the first location area in advance of the terminal being in the designated position by the map-data-obtaining-section based on the designated position;
an instruction-section for issuing the instruction for map display;
a position-measurement-section for measuring the present position at which the instruction for map display has been issued from the instruction-section, and obtaining position data of the present position as present position data;
a determination-section for determining whether the present position belongs to the first location area or a second location area other than the first location area; and
a display-section for;
displaying a map based on present map data, which is obtained by the map-data-obtaining-section and associated with the present position data, when the present position belongs to the first location area; and
displaying a map based on the advance map data when the present position belongs to the second location area.
1 Assignment
0 Petitions
Accused Products
Abstract
A map display system has a server and a mobile communication terminal connected via a communication network. The communication terminal has a storage device for storing advance map data associated with position data; a position measurement device for measuring a present position and obtaining position present position data; a present map data obtaining device for obtaining present map data from the server via the communication network by sending the server the present position data; an instruction device for issuing an instruction for map display; and a display device for displaying a map based on either the present map data or the advance map data. The server has a storage device for storing map data; and a map providing device for searching the stored map data in accordance with the position data sent from the mobile communication terminal and sending the mobile communication terminal map data corresponding to the position data.
23 Citations
29 Claims
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1. A mobile communication terminal which is one of a handheld cellular phone, a PDA, and a PHS, and is moved between a plurality of areas, the mobile communication terminal comprising:
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a position-designating-section for designating at least one desired geographic position by a user prior to measuring a present position and issuing an instruction for map display, wherein the designated position is different from the present position of the terminal; a map-data-obtaining-section for requesting and obtaining prior to measuring the present position and issuing the instruction for map display, in a first location area different from the designated position, advance map data of the designated position via a communication network; a storage for storing prior to measuring the present position and issuing the instruction for map display the advance map data which is obtained in the first location area in advance of the terminal being in the designated position by the map-data-obtaining-section based on the designated position; an instruction-section for issuing the instruction for map display; a position-measurement-section for measuring the present position at which the instruction for map display has been issued from the instruction-section, and obtaining position data of the present position as present position data; a determination-section for determining whether the present position belongs to the first location area or a second location area other than the first location area; and a display-section for; displaying a map based on present map data, which is obtained by the map-data-obtaining-section and associated with the present position data, when the present position belongs to the first location area; and displaying a map based on the advance map data when the present position belongs to the second location area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19, 20, 21, 22, 23)
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13. A map display system in which a server having map data and a mobile communication terminal for obtaining the map data are connected via a communication network, wherein:
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the mobile communication terminal is one of a handheld cellular phone, a PDA, and a PHS, and is moved between a plurality of areas, and comprises; a position-designating-section for designating at least one desired geographic position by a user prior to measuring a present position and issuing an instruction for map display, wherein the designated position is different from the present position of the terminal; a map-data-obtaining-section for requesting and obtaining prior to measuring the present position and issuing the instruction for map display, in a first location area different from the designated position, advance map data of the designated position from the server via the communication network by sending the server the position data; a first storage for storing prior to measuring the present position and issuing the instruction for map display the advance map data which is obtained in the first location area in advance of the terminal being in the designated position by the map-data-obtaining-section based on the designated position; an instruction-section for issuing the instruction for map display; a position-measurement-section for measuring the present position at which the instruction for map display has been issued from the instruction-section, and obtaining position data of the present position as present position data; a determination-section for determining whether the present position belongs to the first location area or a second location area other than the first location area; and a display-section for; displaying a map based on present map data, which is obtained by the map-data-obtaining-section and associated with the present position data, when the present position belongs to the first location area; and displaying a map based on the advance map data when the present position belongs to the second location area, wherein; the server is provided in the first location area and comprises; a second storage for storing map data; and a map-providing-section for searching the stored map data in accordance with the position data sent from the mobile communication terminal and sending the mobile communication terminal map data corresponding to the position data. - View Dependent Claims (14, 15, 16, 17, 18, 24, 25, 26, 27, 28)
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29. A mobile communication terminal which is one of a handheld cellular phone, a PDA, and a PHS, and is moved between a plurality of areas, the mobile communication terminal comprising:
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a position-designating-section for designating at least one desired geographic position by a user prior to measuring a present position and issuing an instruction for map display, wherein the designated position is different from the present position of the terminal; a map-data-obtaining-section for requesting and obtaining prior to measuring the present position and issuing the instruction for map display, in a first location area different from the designated position, advance map data of the designated position via a communication network; a storage for storing prior to measuring the present position and issuing the instruction for map display the advance map data which is obtained in the first location area in advance of the terminal being in the designated position by the map-data-obtaining-section based on the designated position; an instruction-section for issuing the instruction for map display; a position-measurement-section for measuring the present position at which the instruction for map display has been issued from the instruction-section, and obtaining position data of the present position as present position data; a determination-section that determines whether or not the present position data is included in the advance map data by searching the storage for the advance map data of the present position; and a display-section that displays; a map based on the advance map data when the present position data is included in the advance map data; and a map based on present map data, which is obtained by the map-data-obtaining-section and associated with the present position data, when the present position data is not included in the advance map data.
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Specification