Abstract: The present invention provides a subscriber device (10), method (1000, 1500), wireless router (30), and communication system (100). The communication system (100) includes at least one subscriber device (10) having a message generator (1612) for generating a message which includes an indicator of a receive/transmit switching time, and the wireless router (30) for communicating with at least one subscriber device, the wireless router having a scheduler (902), optimizer (904), and an allocation map generator (906), wherein the wireless router (30) prepares an efficient and optimized channel allocation map for transmission to the subscriber device (10) taking into account the indicator of the receive/transmit switching time for the subscriber device (10) and wherein the map indicates at least one allocated transmit time, in a form of a block, having a beginning and an end, for transmission by the subscriber device following a receive time.

Abstract: A matrix of light emitting devices including a voltage source constructed to repetitiously supply a multi-step voltage waveform and a matrix of rows and columns of pixels, each pixel being connected to the voltage source. A method of driving the matrix including addressing each of the pixels of the matrix by supplying scan and image data activating signals to each of the pixels, the image data activating signal being used to activate a pixel by completing a current path from the pixel to a return for the voltage source, and activating the voltage source to repetitiously supply multi-step waveforms of voltage and sequentially supply each step of each of the multi-step voltage waveforms to the pixels, and addressing each of the pixels in the matrix for each step supplied.