Low-power wireless communications between electronic objects scattered over tables, walls and ceiling will form an infrastructure necessary for wireless sensor networks and ambient intelligence. A data edge-signaling scheme and DC power-free pulse detector allow the realization of a low energy/bit transceiver for use in a communication sheet [1], as shown in Fig. 15.4.1(a), which allows the creation of infrastructure for ambient electronics when used together with the wireless power transmission sheet [2].