Patent ID: 8306414

Claim:
A positioning device comprising: a positioning unit that performs positioning of position information each time a predetermined positioning condition is met; a storage unit that stores (i) position information of at least one specified position, in association with a category to which the at least one specified position belongs from among a plurality of types of categories, and (ii) a valid time and a region range of the at least one specified position, the valid time and the region range being stored in association with the category to which the at least one specified position belongs; a position setting unit that sets a specified position from among the at least one specified position stored in the storage unit; a region setting unit that sets the region range corresponding to the category to which the specified position set by the position setting unit belongs, in association with the specified position; a time-keeping unit that specifies a current time; a region determining unit that (i) determines whether or not the current time specified by the time-keeping unit is a valid time for the specified position set by the position setting unit, based on the valid time of the specified position stored in the storage unit, and (ii) determines whether or not position information obtained by the positioning unit belongs to the region range set by the region setting unit; and a positioning control unit that changes the positioning condition of the positioning unit based on results of the determinations by the region determining unit.