Patent ID: 7432847

Claim:
An ultra-wideband (UWB) transceiver for detecting motion of an object comprising: a. a generator mechanism for generating a UWB radio frequency (RF) signal of short duration pulses and connected to output the generated UWB RF signal to a node; b. a port mechanism coupled to the node, operable in a half-duplex manner between a transmit mode for transmitting the generated UWB RF signal from the node and a receive mode for receiving an UWB RF signal and providing the received UWB RF signal to the node; and c. a detector mechanism hard-wired to the node for detecting changes of the received UWB RF signal relative to a thermal compensation reference signal, the detector mechanism configured to be insensitive to the transmitted UWB RF signal; wherein the received UWB RF signal relative to the thermal compensation reference signal varies with motion of the object.