People metering enhanced with light projection prompting for audience measurement

A metering method comprising:

• determining, by executing an instruction with a processor, whether a meter is to transition to a first prompting mode, or whether the meter is to transition to a second prompting mode different from the first prompting mode, the meter to be able to operate in one of a plurality of modes, the plurality of modes including a quiet mode, the first prompting mode and the second prompting mode;
• in response to a transition of the meter to the second prompting mode:
• (i) activating, by executing an instruction with the processor, both a prompting indicator of the meter and a light projector, the prompting indicator to emit a prompt for user input, the light projector to project light onto a first projection area of a surface, and (ii) controlling, by executing an instruction with the processor, the light projector to project light onto a second projection area of the surface in response to expiration of a first time period without receipt of a user input during the second prompting mode, the second projection area different from the first projection area;
• and
• activating, by executing an instruction with the processor, the prompting indicator of the meter, but not activating the light projector, in response to a transition of the meter to the first prompting mode.

A non-transitory computer readable medium comprising computer readable instructions which, when executed, cause a processor to at least:

• determine whether a meter is to transition to a first prompting mode, or whether the meter is to transition to a second prompting mode different from the first prompting mode, the meter to be able to operate in one of a plurality of modes, the plurality of modes including a quiet mode, the first prompting mode and the second prompting mode;
• in response to a transition of the meter to the second prompting mode:
• (i) activate both a prompting indicator of the meter and a light projector, the prompting indicator to emit a prompt for user input, the light projector to project light onto a first projection area of a surface, and (ii) control the light projector to project light onto a second projection area of the surface in response to expiration of a first time period without receipt of a user input during the second prompting mode, the second projection area different from the first projection area;
• and
• activate the prompting indicator of the meter, but not activate the light projector, in response to a transition of the meter to the first prompting mode.