Abstract: In a wireless network node, the MAC protocol is implemented through an extended finite state machine executed by the node. The operation of the wireless network node is changed by establishing a wireless connection between the present wireless network node and a remote wireless network node. One or more data packets containing a coded extended finite state machine corresponding to a specific MAC protocol are sent through the wireless connection from the remote wireless network node to the present wireless network node. An activation command from the remote wireless network node to the present wireless network node is sent through the wireless connection for activating the specific MAC protocol. This may be done during normal operation of the present wireless network node.

Abstract: In a wireless network node, the MAC protocol is implemented through an extended finite state machine executed by the node. The operation of the wireless network node is changed by establishing a wireless connection between the present wireless network node and a remote wireless network node. One or more data packets containing a coded extended finite state machine corresponding to a specific MAC protocol are sent through the wireless connection from the remote wireless network node to the present wireless network node. An activation command from the remote wireless network node to the present wireless network node is sent through the wireless connection for activating the specific MAC protocol. This may be done during normal operation of the present wireless network node.

Abstract: A method of transmitting speech data to a remote device in a distributed speech recognition system, includes the steps of: dividing an input speech signal into frames; calculating, for each frame, a voice activity value representative of the presence of speech activity in the frame; grouping the frames into multiframes, each multiframe including a predetermined number of frames; calculating, for each multiframe, a voice activity marker representative of the number of frames in the multiframe representing speech activity; and selectively transmitting, on the basis of the voice activity marker associated with each multiframe, the multiframes to the remote device.

Abstract: A method of transmitting speech data to a remote device in a distributed speech recognition system, includes the steps of: dividing an input speech signal into frames; calculating, for each frame, a voice activity value representative of the presence of speech activity in the frame; grouping the frames into multiframes, each multiframe including a predetermined number of frames; calculating, for each multiframe, a voice activity marker representative of the number of frames in the multiframe representing speech activity; and selectively transmitting, on the basis of the voice activity marker associated with each multiframe, the multiframes to the remote device.