Information processing apparatus, information processing method, non-transitory computer-readable storage medium with executable information processing program stored thereon, and information processing system

An alarm clock comprising:

• a housing;
• a display disposed on or in the housing, the display having a backlight;
• at least one sensor disposed on or in the housing, the at least one sensor configured to measure distance to a body, the at least one sensor providing sensor signals distinguishing between (a) a wakeful human presence, (b) a sleeping human presence, and (c) no human presence, wherein distinguishing (c) no human presence from (a) a wakeful human presence and/or (b) a sleeping human presence is based on detected change in distance within a distance measurement area in response to an output of the at least one sensor;
• and
• at least one processor disposed in the housing and configured to execute program instructions to perform operations comprising:
• control the display to display time,
• control a sound transducer to emit an awakening sound in response to the sensor signals;
• and
• select and control illumination level of the backlight based on distinguished no human presence at the time of a wake event.

An alarm clock comprising:

• a housing;
• a display disposed on or in the housing, the display having a backlight;
• at least one sensor configured to measure distance to a body, the at least one sensor disposed on or in the housing, the at least one sensor distinguishing between (a) a wakeful human presence, (b) a sleeping human presence, and (c) no human presence, wherein distinguishing (c) no human presence from (a) a wakeful human presence and/or (b) a sleeping human presence is based on detected change in distance within a distance measurement area in response to an output of the at least one sensor;
• and
• processing circuitry disposed in the housing and configured to:
• control the display to display a time indication,
• control emission of an awakening sound in response to body motion detected by the at least one sensor, and
• set illumination level of the backlight based at least in part on the distinguished no human presence at the time of a wake event.

A method comprising:

• controlling a display to display a time indication, the display having a display backlight;
• using at least one sensor configured to measure distance to a body, the at least one sensor disposed on or in a housing to distinguish between (a) a wakeful human presence, (b) a sleeping human presence, and (c) no human presence, wherein distinguishing (c) no human presence from (a) a wakeful human presence and/or (b) a sleeping human presence is based on detected change in distance within a distance measurement area in response to an output of the at least one sensor;
• causing emission of an awakening sound in response to the at least one sensor detecting body motion;
• and
• setting an illumination level of the display backlight based at least in part on the distinguished no human presence at the time of a wake event.