Information recording apparatus and power-saving method therefor

摘要: An information recording apparatus for obtained from a sensor, comprises: face detecting unit of person among the sensor; detection switching control between valid and invalid; setup obtaining whether set up by is or observation observing on made not, when valid; power-saving controller executing control; record inputted sensor onto medium; conducted not unit; memory memorizing necessary controlling apparatus; each constituent elements mentioned above, wherein executes reducing an electric power consumption apparatus, unit, determining that: unit.