Patent ID: 11876553
Assignee: nan
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 0:
1. A method comprising:
establishing a range between a pair of Ultra-Wideband (UWB) transceivers comprising a first ultra-wideband (UWB) transceiver with a second UWB transceiver using a process in execution upon the first UWB transceiver and the second UWB transceiver; wherein
the range is established in dependence upon a process in execution upon the first transceiver which employs an estimate of an elapsed time for an echo signal established by a digital signal processing (DSP) circuit forming part of the first UWB transceiver; and
the echo signal was generated by the second UWB transceiver; wherein
the first UWB transceiver and the second UWB transceiver are not synchronized with each other;
the first UWB transceiver incorporates:
a filter circuit comprising an input port electrically coupled to an antenna for receiving UWB signals and an output port where the filter circuit processes the received UWB signals to generate processed UWB signals;
a clock source; and
an energy detector circuit electrically coupled to the output port of the filter circuit and the clock source;

the DSP establishes the energy within integration time windows that are established in dependence upon a clock signal generated by the clock source; and
the estimate of the elapsed time is established in dependence upon an energy distribution determined by the DSP for two consecutive integration time windows during which the echo signal is received.