Patent ID: 8041328

Claim:
An activation circuit for an electronic wireless device, comprising: a first accelerometer located in said electronic wireless device to detect a movement of said electronic wireless device along a specific axis; a second accelerometer; an input device; and a monitoring circuit connected to said input device and an output of said second accelerometer, said monitoring circuit: monitoring for signals from said first accelerometer to indicate an initial movement of said electronic wireless device along said specific axis and then activating said second accelerometer; monitoring for signals from said second accelerometer and then activating said input device if a signal from said second accelerometer surpasses a predefined threshold; waiting for a notable signal to be received from said input device for a predetermined length of time; if said notable signal is received within said predetermined time, generating an activation signal for activating said electronic wireless device to a higher power state; and if said notable signal is not received within said predetermined time, deactivating said input device and said second accelerometer, wherein said first accelerometer utilizes less power than said second accelerometer.