MOBILE NAVIGATION DEVICE, CONTROL METHOD THEREFOR, AND CONTROL PROGRAM THEREFOR

摘要

A navigation device having a function of dealing with a case where a navigation function cannot be executed at the same time as another function, such as a telephone function, because of constraints of the processing capability of a CPU or the memory capacity in a mobile telephone. A navigation device (10), which uses a mobile telephone having GPS means, comprises a navigation control module (123); a telephone communication control module (122) for telephone communicating with another mobile terminal device; and an operation control module (OS) (121) for controlling those modules. When detecting a particular event during operation of the navigation control module, the OS sends a suspension command to the navigation control module, thereby suspending the navigation control module. When detecting a termination of the particular event, the OS sends a resumption command to the navigation control module, thereby resuming the navigation control module.