Patent ID: 9369556
Filing Date: 2016-06-14
CPC Classification: H04B,H04M

Claim Text:
1. A portable electronic device, comprising: a housing, having an opening; a button assembly, disposed at the opening and comprising a button, an elastomer and a switch, wherein the button is movably disposed at the opening, the elastomer is disposed between the button and the housing and forms a waterproof seal between the button and the housing, and the switch is located underneath the button, wherein the button is configured to trigger the switch for changing functions of the portable electronic device when an external force is applied; a locking unit, configured to keep the button on a fixed position against the elastomer; a processing unit, disposed within the housing and electrically coupled to the switch and the locking unit; and a sensing unit, disposed on the housing and electrically coupled to the processing unit, the sensing unit being configured to sense the presence of water around the portable electronic device and generate a detection signal accordingly, wherein when the processing unit determines that the sensed detection signal is over a threshold, the processing unit enables the locking unit to keep the button on the fixed position against the elastomer, and when the processing unit determines that the sensed detection signal is not over the threshold, the processing unit disables the locking unit.