US 11,678,137 B2
Decentralized proximity system with multiple radio links
Brian T. Harvey, Zeeland, MI (US); Jason T. Grant, Holland, MI (US); Travis Wilson, Zeeland, MI (US); Nicholas Hayhoe, Zeeland, MI (US); Warren Guthrie, West Olive, MI (US); Nicholas A. Schrock, Grand Rapids, MI (US); and John G. Videtich, Zeeland, MI (US)
Assigned to Fleetwood Group, Inc., Holland, MI (US)
Filed by Fleetwood Group, Inc., Holland, MI (US)
Filed on May 4, 2021, as Appl. No. 17/307,101.
Claims priority of provisional application 63/033,879, filed on Jun. 3, 2020.
Claims priority of provisional application 63/033,876, filed on Jun. 3, 2020.
Claims priority of provisional application 63/020,861, filed on May 6, 2020.
Prior Publication US 2021/0352434 A1, Nov. 11, 2021
Int. Cl. H04W 4/02 (2018.01); H04W 8/00 (2009.01); H04W 4/80 (2018.01); H04B 1/7163 (2011.01); H04W 76/11 (2018.01); G01B 7/14 (2006.01)
CPC H04W 4/023 (2013.01) [H04B 1/7163 (2013.01); H04W 4/80 (2018.02); H04W 8/005 (2013.01); H04W 76/11 (2018.02); G01B 7/14 (2013.01)] 36 Claims
OG exemplary drawing
 
1. A contact and ranging system comprising:
a first device of a plurality of devices, the first device comprising:
a first transceiver configured to perform discovery mode operations;
a second transceiver configured to perform ranging mode operations, and
a controller operable to control the operation of the first transceiver and the second transceiver;
wherein the first device is operable to determine a distance between the first device and a second device of the plurality of devices.