Appeal 2007-1630
Application 10/422,661
THE INVENTION
The disclosed invention generally relates to a method and system for
controlling power consumption of battery-powered portable devices such as
handheld computers, cordless telephones, cellular telephones, and
specialized portable terminal devices (e.g., handheld bar coding equipment,
portable point-of-sale devices, and the like) (Spec. 2). Upon detection of
signal loss, the portable device enters a “smart nap” mode where the device
stops searching for a network signal until a later time when the network
signal is likely to be reliably available again. The duration of the “smart
nap” mode is determined by searching “smart nap records” which store an
accumulated history of signal conditions for the device (Spec. 17-18).
Independent claim 1 is illustrative:
1. A method for managing battery energy usage by a mobile
wireless network device comprising:
determining that a period of signal intermittence has started by
detecting threshold conditions for a transient network signal being
intermittently found and intermittently lost;
recording events of said threshold conditions with operational
criteria associated with operational conditions of the events;
upon each detection of network signal loss, determining from
said event records a nap termination condition upon which network
signal has been historically reliable following said period of signal
intermittence; and
entering a nap mode until said nap termination condition is met,
during said nap mode a state of lower power consumption being
achieved including defeating searching for said network signal.
2
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Last modified: September 9, 2013