Mobile terminal device having route guiding function and route guiding method utilizing mobile terminal device

A mobile terminal device having a route guiding function of guiding a route by obtaining map information from a server system via a radio communication network, comprising:

• a position detecting unit which detects a current position of the mobile terminal device;
• a bearing detecting unit which detects a first bearing to which the mobile terminal device is directed;
• a map information acquiring unit which transmits predetermined specific information to identify a destination and positional information on the current position to the server system, and acquires map information of a section containing the destination and the current position from the server system;
• a target bearing calculating unit which calculates a second bearing from the current position to the destination based on the positional information and the specific information;
• a displaying unit which displays a map based on the acquired map information, displays a predetermined icon image at the current position, and displays an icon image indicating the first bearing and an icon image indicating the second bearing;
• and
• a target capturing unit which produces a sound effect in response to a difference between the first and second bearings.

A route guiding method utilizing a mobile terminal device including a position detecting unit for detecting a current position of the mobile terminal device and a bearing detecting unit for detecting a first bearing to which the mobile terminal device is directed to the mobile terminal device, and a server system, to which the mobile terminal device is connected via a radio communication network and which stores a map database including map information including map image data and information to identify a position on a map, the method comprising the steps of:

• causing the server system to execute the steps of,
• searching the map information containing a destination and the current position from the map database based on positional information of the current position and specific information of the destination which are transmitted from the mobile terminal device, and
• sending the searched map information to the mobile terminal device;
• and
• causing the mobile terminal device to execute the steps of,
• transmitting predetermined the specific information designated by a user to the server system,
• transmitting the positional information of the current position detected by the position detecting unit to the server system,
• receiving the map information sent from the server system,
• calculating a second bearing from the current position to the destination based on the positional information and the specific information,
• displaying a map based on the acquired map information, displaying predetermined icon images to overlap with a position of the destination and the current position, and displaying an icon image indicating the first bearing, and
• producing a sound effect in response to a difference between the first and second bearings.

A route guiding method utilizing a mobile terminal device including a position detecting unit for detecting a current position of the mobile terminal device and a bearing detecting unit for detecting a first bearing to which the mobile terminal device is directed to the mobile terminal device, and a server system, to which the mobile terminal device is connected via a radio communication network and which stores a map database including map information including map image data and information to identify a position on a map, the method comprising the steps of:

• causing the server system to execute the steps of,
• searching the map information containing a destination and the current position from the map database, based on positional information of the current position and specific information of the destination which are transmitted from the mobile terminal device, and
• sending the searched map information to the mobile terminal device;
• and
• causing the mobile terminal device to execute the steps of
• transmitting the specific information designated by a user to the server system,
• transmitting the positional information of the current position detected by the position detecting unit to the server system,
• receiving the map information sent from the server system,
• calculating a second bearing from the current position to the destination based on the positional information and the specific information,
• displaying a map based on the acquired map information, displaying a predetermined icon image at the current position, and displaying an icon image indicating the first bearing and an icon image indicating the second bearing, and
• producing a sound effect in response to a difference between the first and second bearings.

A computer readable recording medium storing a program for guiding a route with utilizing a mobile terminal device including a position detecting unit for detecting a current position of the mobile terminal device and a bearing detecting unit for detecting a first bearing to which the mobile terminal device is directed to the mobile terminal device, and a server system, to which the mobile terminal device is connected via a radio communication network and which stores a map database including map information including map image data and information to identify a position on a map, wherein

• the program causes the server system to execute the steps of,
• searching the map information containing a destination and the current position from the map database based on positional information of the current position and specific information of the destination which are transmitted from the mobile terminal device, and
• sending the searched map information to the mobile terminal device;
• and
• the program causes the mobile terminal device to execute the steps of,
• transmitting predetermined the specific information designated by a user to the server system,
• transmitting the positional information of the current position detected by the position detecting unit to the server system,
• receiving the map information sent from the server system,
• calculating a second bearing from the current position to the destination based on the positional information and the specific information,
• displaying a map based on the acquired map information, displaying predetermined icon images to overlap with a position of the destination and the current position, and displaying an icon image indicating the first bearing, and
• producing a sound effect in response to a difference between the first and second bearings.

A computer readable recording medium storing a program for guiding a route with utilizing a mobile terminal device including a position detecting unit for detecting a current position of the mobile terminal device and a bearing detecting unit for detecting a first bearing to which the mobile terminal device is directed to the mobile terminal device, and a server system, to which the mobile terminal device is connected via a radio communication network and which stores a map database including map information including map image data and information to identify a position on a map, wherein

• the program causes the server system to execute the steps of,
• searching the map information containing a destination and the current position from the map database, based on positional information of the current position and specific information of the destination which are transmitted from the mobile terminal device, and
• sending the searched map information to the mobile terminal device;
• and
• the program causes the mobile terminal device to execute the steps of
• transmitting the specific information designated by a user to the server system,
• transmitting the positional information of the current position detected by the position detecting unit to the server system,
• receiving the map information sent from the server system,
• calculating a second bearing from the current position to the destination based on the positional information and the specific information,
• displaying a map based on the acquired map information, displaying a predetermined icon image at the current position, and displaying an icon image indicating the first bearing and an icon image indicating the second bearing, and
• producing a sound effect in response to a difference between the first and second bearings.