Timing circuit calibration in devices with selectable power modes

A device operable in a plurality of selectable power modes, the device comprising:

• a receiver;
• a timing circuit;
• and
• a processing unit to:
• set a timing circuit based, at least in part, on a phase value included in one or more attribute values obtained from a signal acquired from a ground-based transmitter using said receiving;
• and
• based, at least in part, on said one or more attribute values, selectively transition operation of said device to a lower power mode wherein at least a portion of said receiver is disabled and at least a portion of enabled device circuitry uses said timing circuit.

An article comprising:

• a non-transitory computer readable medium having stored therein computer implementable instructions executable by a processing unit of a device to:
• set a timing circuit based, at least in part, on a phase value included in one or more attribute values obtained from a signal acquired from a ground-based transmitter;
• and
• transition operation of said device to a lower power mode based, at least in part, on said one or more attribute values, wherein while said device is operating in said lower power mode at least a portion of a receiver used to acquire said signal is disabled and at least a portion of enabled device circuitry uses said timing circuit.