Abstract: The present disclosure relates to detecting the use of fake voice command to activate microphones of smart devices. In one embodiment, sound characteristics associated with an audio signal from a microphone of smart device may be compared with other microphones of the smart device in order to detect fake voice commands. In another embodiment, sound characteristics associated with the audio signal from the microphone may be compared with a threshold range of stored sound characteristics in order to detect fake voice commands. In some embodiments, a controller may triangulate a position associated with a source of a sound in order to detect a fake voice command. In a further embodiment, a controller may verify that a user or associated electronic device are near a smart device to authorize a voice command.

Abstract: Disclosed is an improved fuel cell apparatus. The fuel cell apparatus comprises at least one fuel cell, the fuel cell comprising two bipolar plates (200a 200b), one providing an anode side, and the other providing a cathode side, the fuel cell being configured to have a fuel inlet and a fuel outlet, and a membrane electrode assembly (422) disposed between the fuel inlets (201) and fuel outlets (203) of the bipolar plates. The at least one fuel cell is retained by a housing, the housing comprising a first outer plate and a second outer plate, each located on an opposite face of the at least one fuel cell. The housing further comprises a cooling element support which is adapted to support one or more fans that are adapted to provide an air flow toward the at least one fuel cell.