Accelerometer-controlled master power switch for electronic devices

摘要

An accelerometer or other motion sensor is used to provide power to an entire processor system such that the processor does not need to be powered to process the motion signals for initial power-on control. After the processor system is powered on, the processor system may receive and process motion signals as normal, including, for example, performing various power-control functions such as power-down of certain components or the entire system upon detection of a lack of motion for a predetermined amount of time.

主权项

1. An electronic device comprising:
a power source; an inertial sensor coupled to the power source via a non-switched connection; and a master power switch coupled to the power source and directly coupled to the inertial sensor, wherein the master power switch is actuated by a first predetermined signal from the inertial sensor to turn on the device, and wherein the first predetermined signal indicates a predetermined motion of the device including at least one of movement in a specific direction, movement in a specific pattern, movement with a specific intensity, or movement of a specific duration.