Patent ID: 9124358
Filing Date: 2015-09-01
Classification: H01H,H04B,Y02B,Y04S

Abstract:
1. A wireless switch system comprising: an exciter powered by an alternating current (AC) mains and transmitting an always available, unmodulated, continuous wave (CW) narrowband RF excitation signal; a radio frequency (RF) transponder including a narrowband receiver operative to develop a generated power from the narrowband RF excitation signal and an ultra wideband (UWB) transmitter powered by the always available generated power of the narrowband receiver, the UWB transmitter having a bandwidth of at least 500 MHz and being operative to transmit RF UWB pulses; a switch, wherein the RF transponder is coupled to the switch to sense an on-or-off sensed switch state, and wherein the UWB transmitter modulates the transmitted UWB pulses to comprise a Time Doman Carrierless Impulse Radio (TDCIR) signal with a fractional bandwidth of greater than or equal to 10% to transmit the sensed switch state, whereby the transmitted UBW pulses are not a continuous wave signal; and an actuator including a UWB receiver adapted to receive the transmitted UBW pulses.