Incorporating imaging unit position data

A data recording method in an imaging apparatus, the method comprising:

• capturing an image;
• monitoring a state of photographing by a user to calculate a frequency of use of the imaging apparatus per unit time;
• controlling power supplied to a GPS (Global Positioning System) device configured to execute position calculation processing based on data received from a satellite so that power is intermittently supplied to the GPS device when the calculated use frequency is lower than a predetermined threshold, after judging whether an acquired navigation message held by the GPS device is valid or not;
• performing positioning by the GPS device;
• and
• generating photographed data attribute information in which positional information acquired in the GPS device is set as attribute information of the captured image and storing the photographed data attribute information in a storing unit.

A recording medium recorded with a computer-readable program for causing a computer to execute a data recording method in an imaging apparatus, the method comprising:

• capturing an image;
• monitoring a state of photographing by a user to calculate a frequency of use of the imaging apparatus per unit time, and controlling power supplied to a GPS (Global Positioning System) device configured to execute position calculation processing based on data received from a satellite so that power is intermittently supplied to the GPS device when the calculated use frequency is lower than a predetermined threshold, after judging whether an acquired navigation message held by the GPS device is valid or not;
• performing positioning by the GPS device;
• and
• generating photographed data attribute information in which positional information acquired in the GPS device is set as attribute information of the captured image and storing the photographed data attribute information in a storing unit.

An imaging apparatus, comprising:

• an imaging unit configured to execute processing to capture an image;
• a GPS (Global Positioning System) device configured to execute position calculation processing based on data received from a satellite;
• a power-supply control unit configured to control power supply to the GPS device;
• an apparatus control unit configured to judge whether an acquired navigation message is valid and when a result thereof indicates that the acquired navigation message is valid to monitor a state of photographing by a user to calculate a frequency of use of the imaging unit per unit time and to cause the power-supply control unit to intermittently supply power to the GPS device when the calculated use frequency is lower than a predetermined threshold, and when the result thereof indicates that the acquired navigation message is invalid or has expired to update the navigation message and to monitor the state of photographing by the user to calculate the frequency of use of the imaging unit per unit time and to cause the power-supply control unit to intermittently supply power to the GPS device when the calculated use frequency is lower than the predetermined threshold;
• and
• a data-recording control unit configured to generate photographed data attribute information in which positional information acquired in the GPS device is set as attribute information of an acquired image in the imaging unit, and to execute processing to store the photographed data attribute information in a storing unit.