Methods and apparatus to count people are disclosed. Example apparatus disclosed herein are to populate a list with first characteristic datasets obtained from a first plurality of images, respective ones of the first characteristic datasets representative of corresponding faces. Disclosed apparatus are also to perform comparisons of the first characteristic datasets to each other to determine a first number of unique faces, the comparisons limited to the first characteristic datasets obtained during the first period of time. Disclosed apparatus are further to delete the first characteristic datasets from the list after the first period of time has ended, and re-populate the list with second characteristic datasets obtained from a second plurality of images representative of the environment during a second period of time of the media presentation, the second period of time subsequent to the first period of time.

A timer measurement device includes a signal output unit, an operation input unit and a processor. The processor stores ordered time settings including at least respective timer values. When an elapsed time that is measured by using a clock signal output by the signal output unit reaches a timer value of a time setting selected from the time settings, the processor resets the elapsed time, and switches the selected time setting to a next time setting among the ordered time settings. If the operation input unit receives a predetermined change command during, the measurement of the elapsed time for the timer value of the selected time setting, the processor performs, in response to the change command, a change processing which changes a remaining time with respect to the elapsed time for the timer value of the selected time setting.

A timer measurement device includes a signal output unit, an operation input unit and a processor. The processor stores ordered time settings including at least respective timer values. When an elapsed time that is measured by using a clock signal output by the signal output unit reaches a timer value of a time setting selected from the time settings, the processor resets the elapsed time, and switches the selected time setting to a next time setting among the ordered time settings. If the operation input unit receives a predetermined change command during, the measurement of the elapsed time for the timer value of the selected time setting, the processor performs, in response to the change command, a change processing which changes a remaining time with respect to the elapsed time for the timer value of the selected time setting.

Methods and apparatus to count people are disclosed. Example apparatus disclosed herein include means for discarding existing characteristic datasets from a list; means for populating the list with first characteristic datasets obtained from a first plurality of images representative of an environment during a first period of time of a media presentation; means for limiting a number of the first characteristic datasets stored in the list for a first location represented in the first plurality of images; and means for comparing the first characteristic datasets to each other to determine a first number of unique faces in the environment during the first period of time, wherein the means for discarding is to delete the first characteristic datasets from the list, and the means for populating is to re-populate the list with second characteristic datasets obtained from a second plurality of images representative of the environment.

A user interface is provided to schedule a sleep schedule associated with an alarm. Various user interface elements may be presented using the user interface. Responsive to user selection of these user interface elements, certain actions may be performed to configure aspects of the sleep schedule.

A user interface is provided to schedule a sleep schedule associated with an alarm. Various user interface elements may be presented using the user interface. Responsive to user selection of these user interface elements, certain actions may be performed to configure aspects of the sleep schedule.

An optical detection device capable of detecting a pointer position of a turntable watch includes an optical receiver and a processor. The optical receiver is disposed inside the turntable watch and adapted to receive an optical reflecting signal. The processor is electrically connected to the optical receiver and adapted to compare a physical quantity of the optical reflecting signal with a predefined condition for determining whether a pointer of the turntable watch is located above the optical receiver. The optical detection device further includes an optical emitter electrically connected to the processor and adapted to emit an optical detecting signal. The optical detecting signal is projected onto the pointer to generate the optical reflecting signal.

An optical detection device capable of detecting a pointer position of a turntable watch includes an optical receiver and a processor. The optical receiver is disposed inside the turntable watch and adapted to receive an optical reflecting signal. The processor is electrically connected to the optical receiver and adapted to compare a physical quantity of the optical reflecting signal with a predefined condition for determining whether a pointer of the turntable watch is located above the optical receiver. The optical detection device further includes an optical emitter electrically connected to the processor and adapted to emit an optical detecting signal. The optical detecting signal is projected onto the pointer to generate the optical reflecting signal.