Abstract: The present disclosure relates to devices and processes for monitoring attributes of a user's physical activity (e.g., workout) or inactivity, and to user interfaces (e.g., an activity indicator) for displaying the same. In some examples, a device determines whether physical activity corresponds to a first type based on a first set of criteria, and whether physical activity corresponds to a second type based on a second set of criteria. In some examples, the device controls an inactivity timer that measures user's inactivity. In some examples, the device displays a first visual representation of an attribute or amount of a first type of physical activity, and a second visual representation of an attribute or amount of a second type. In some examples, the device displays a third visual representation of an attribute or amount of a third type of activity. In some examples, the third visual representation corresponds to user's inactivity.

Abstract: Disclosed herein are voltage driver circuits and methods of operating the same. In some embodiments, a plurality of circuit slices are provided in a voltage driver circuit, each circuit slice has a time constant, and is controlled to switchably connect a driver output to either a high voltage level or a low voltage level, or to disconnect the driver output from both voltage levels. The circuit slices may provide an adjustable output impedance, which may be set to match the impedance of different loads. The circuit slices may also provide adjustable voltages with low power consumption, particularly in high speed applications. The circuit slices may also have programmable capacitors that may be adjusted to provide a programmable time domain behavior of the output voltage waveform, such as a programmable voltage peaking characteristic.

Abstract: Disclosed herein are voltage driver circuits and methods of operating the same. In some embodiments, a plurality of circuit slices are provided in a voltage driver circuit, each circuit slice has a time constant, and is controlled to switchably connect a driver output to either a high voltage level or a low voltage level, or to disconnect the driver output from both voltage levels. The circuit slices may provide an adjustable output impedance, which may be set to match the impedance of different loads. The circuit slices may also provide adjustable voltages with low power consumption, particularly in high speed applications. The circuit slices may also have programmable capacitors that may be adjusted to provide a programmable time domain behavior of the output voltage waveform, such as a programmable voltage peaking characteristic.

Abstract: A method for providing increased performance in fully active retard feeders includes driving a feed roll and retard roll pair of a reprographic apparatus backwards periodically at the start of the machine or during idle periods to compensate for contamination buildup and/or roll “set” when left in position overnight.