US 12,294,971 B2
System, a positioning device, a slave anchor electronic device, and related methods
Peter Ljung, Helsingborg (SE)
Assigned to Sony Group Corporation, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on Aug. 11, 2022, as Appl. No. 17/885,842.
Claims priority of application No. 2151193-6 (SE), filed on Sep. 29, 2021.
Prior Publication US 2023/0106904 A1, Apr. 6, 2023
Int. Cl. H04W 64/00 (2009.01); H04B 1/7163 (2011.01); H04W 52/02 (2009.01)
CPC H04W 64/003 (2013.01) [H04B 1/7163 (2013.01); H04W 52/0251 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method, performed by a system comprising a master anchor electronic device, and a plurality of slave anchor electronic devices including a first slave anchor electronic device, the method comprising:
broadcasting, from the master anchor electronic device, a first ultra-wide band (UWB) signal, at a first predetermined time;
receiving, at the first slave anchor electronic device, the first UWB signal;
determining, at the first slave anchor electronic device, a first transmission time based on the first UWB signal; and
broadcasting, from the first slave anchor electronic device, a second UWB signal at the first transmission time; and
receiving, at a first positioning device of the system, a radio synchronization signal indicative of a first positioning event.