Power conservation techniques for use in devices with selectable power modes

摘要

Techniques are provided which may be implemented in various methods, apparatuses, and/or articles of manufacture for use in and/or with an electronic device that is operable in a plurality of selectable power modes, including at least a “higher power mode” and a “lower power mode”. In an example implementation, with an electronic device operating in a higher power mode may selectively transition to a lower power mode based, at least in part, on at least phase value obtained from a signal acquired from a ground-based transmitter. Further techniques are provided which may be implemented to allow electronic device to selectively transition from a lower power mode to one or more other selectable power modes, e.g., including various “medium power modes”, and various “higher power modes”.

主权项

1. A method comprising: with a device operable in a plurality of selectable power modes, and with said device in a higher power mode:
obtaining one or more attribute values including a phase value from a signal acquired from a ground-based transmitter; and in response to a determination that said one or more attribute values satisfy a profile test indicating that said device is within a characterized environment, transitioning to a lower power mode wherein at least a portion of a receiver used to acquire said signal is disabled and at least a portion of enabled device circuitry uses a timing circuit that is set based, at least in part, on at least said phase value.