US 12,169,246 B2
System and method for peripheral device location using multiple high accuracy distance measurements with integrated system antennas
Harpreet S. Narula, Austin, TX (US); Suresh K. Ramasamy, Cedar Park, TX (US); and Liam B. Quinn, Austin, TX (US)
Assigned to DELL PRODUCTS LP, Round Rock, TX (US)
Filed by Dell Products, LP, Round Rock, TX (US)
Filed on Oct. 27, 2021, as Appl. No. 17/511,956.
Prior Publication US 2023/0129726 A1, Apr. 27, 2023
Int. Cl. G01S 13/84 (2006.01); G01S 5/00 (2006.01); G01S 5/02 (2010.01); G01S 7/02 (2006.01); G01S 7/35 (2006.01); G01S 13/06 (2006.01); H04B 17/345 (2015.01); H04W 4/80 (2018.01)
CPC G01S 5/0284 (2013.01) [G01S 13/06 (2013.01); H04W 4/80 (2018.02)] 20 Claims
OG exemplary drawing
 
1. An information handling system comprising:
a processor;
a memory;
a power management unit (PMU);
at least two antennas;
a wireless interface adapter with a radio operatively coupled to the at least two antennas;
the processor executing code instructions for a distance and direction detection module therein, wherein the distance and direction detection module is configured to:
enable phase-based ranging with a narrow band constant tone exchange;
add at least one constant tone period to a wireless data signal;
monitor for nearby peripheral devices; and
measure at least two distances between the information handling system and an antenna at a nearby peripheral device using the at least two antennas with the wireless data signal having the at least one constant tone period by switching between the at least two antennas to conduct at least one phase based ranging operation with the narrow band constant tone exchange for each of the at least two antennas.