US 11,876,553 B2
Energy efficient ultra-wideband impulse radio systems and methods
Frederic Nabki, Montreal (CA); Dominic Deslandes, Chambly (CA); Mohammad Taherzadeh-Sani, Montreal (CA); Michiel Soer, Montreal (CA); and Rabia Rassil, Montreal (CA)
Filed by TRANSFERT PLUS SOCIETE EN COMMANDITE, Montreal (CA)
Filed on Jun. 28, 2022, as Appl. No. 17/809,457.
Application 16/715,263 is a division of application No. 16/325,416, granted, now 10,879,955, issued on Dec. 29, 2020, previously published as PCT/CA2018/000135, filed on Jun. 29, 2018.
Application 17/809,457 is a continuation of application No. 17/201,475, filed on Mar. 15, 2021, granted, now 11,394,424.
Application 17/201,475 is a continuation of application No. 16/936,834, filed on Jul. 23, 2020, granted, now 10,951,264, issued on Mar. 16, 2021.
Application 16/936,834 is a continuation of application No. 16/715,263, filed on Dec. 16, 2019, granted, now 10,742,261, issued on Aug. 11, 2020.
Claims priority of provisional application 62/527,187, filed on Jun. 30, 2017.
Prior Publication US 2022/0337285 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/719 (2011.01); H04W 56/00 (2009.01); G06K 7/10 (2006.01); H04B 1/7163 (2011.01); H04B 1/10 (2006.01); H04B 1/7183 (2011.01); H03H 19/00 (2006.01)
CPC H04B 1/719 (2013.01) [H04B 1/10 (2013.01); H04B 1/7163 (2013.01); H04B 1/7183 (2013.01); H04B 1/71637 (2013.01); H04W 56/00 (2013.01); G06K 7/10306 (2013.01); H03H 19/002 (2013.01); H04B 2201/71634 (2013.01)] 13 Claims
OG exemplary drawing
 
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.