NOTIFICATION DEVICE, NOTIFICATION SYSTEM, METHOD FOR CONTROLLING NOTIFICATION DEVICE, CONTROL PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM HAVING THE PROGRAM RECORDED THEREUPON

摘要

A portable telephone (1) is provided with a portable telephone storage section (8) for storing both data including positional information and data not including positional information, a positional information extraction section (110) for identifying the data including the positional information from the data stored in the portable telephone storage section (8), and extracting positional information used as a reference to set a predetermined range from the identified data, a portable telephone determination section (111) for setting the predetermined range with reference to the positional information extracted by the positional information extraction section (110), and a portable telephone notification section (112) for making notification to the user of a device when the current position of the device enters the predetermined range set by the portable telephone determination section (111), thus allowing the user to easily register positional information.