Patent ID: 8843173

Claim:
A portable device comprising: a mechanical vibration sensor configured to sense vibrations having a magnitude equal to or larger than a threshold while the portable device is in a standby mode and generate an electrical signal corresponding to the magnitude of the sensed vibrations; a motion sensor configured to sense a motion of the portable device; an audio sensor configured to receive a voice command; a sensor hub configured to control a plurality of sensors including the motion sensor and the audio sensor; and a main processor configured to execute an application and control the portable device, wherein when the portable device is placed in the standby mode, the sensor hub switches from an inactive state to an active state and activates the motion sensor when receiving the electrical signal from the mechanical vibration sensor, and when a gesture pattern sensed by the activated motion sensor corresponds to a pre-stored pattern of a voice recognition service triggering gesture, the sensor hub transmits a signal to the main processor, the signal activating the main processor and switching the portable device from the standby mode to a voice recognition service mode.