Patent ID: 7408506

Claim:
A location awareness mobile device power conservation method, comprising: receiving location information from one or more receivers in a mobile cellular communications device; receiving a signal indicating whether or not the mobile cellular communications device is in motion from an accelerometer in the mobile cellular communications device; determining a velocity vector from the location information received; if the velocity vector indicates that the mobile cellular communications device is not in motion, enabling scanning operations for the one or more receivers to be halted to conserve battery power for the mobile cellular communications device while the mobile device is stationary; and enabling scanning operations for the one or more receivers to resume when an indication that the mobile cellular communications device is moving again is received from the accelerometer; if the velocity vector indicates that the mobile cellular communications device is in motion, setting a scanning rate for the one or more receivers to a value at least in part proportional to the magnitude of the velocity vector such that battery power consumption of the mobile cellular communications device is directly proportional to the velocity of the mobile cellular communications device; and repeating the process until the mobile cellular communications device is placed in an off position.