US 12,290,338 B2
Methods and systems for electromagnetic near-field coherent sensing
Xiaonan Hui, Ithaca, NY (US); and Edwin C. Kan, Ithaca, IN (US)
Assigned to Cornell University, Ithaca, NY (US)
Filed by Cornell University, Ithaca, NY (US)
Filed on Jul. 21, 2023, as Appl. No. 18/225,095.
Application 18/225,095 is a continuation of application No. 16/623,141, granted, now 11,744,470, previously published as PCT/US2018/038121, filed on Jun. 18, 2018.
Claims priority of provisional application 62/618,352, filed on Jan. 17, 2018.
Claims priority of provisional application 62/521,163, filed on Jun. 16, 2017.
Prior Publication US 2023/0371823 A1, Nov. 23, 2023
Int. Cl. A61B 5/0205 (2006.01); A61B 5/00 (2006.01); A61B 5/0507 (2021.01); A61B 5/11 (2006.01); H04B 5/77 (2024.01)
CPC A61B 5/0205 (2013.01) [A61B 5/0015 (2013.01); A61B 5/0026 (2013.01); A61B 5/0507 (2013.01); A61B 5/1126 (2013.01); H04B 5/77 (2024.01)] 18 Claims
OG exemplary drawing
 
1. A method for non-contact measuring of an on-body and/or inside-body motion of an individual using a near-field coherent sensing system (NCS), comprising:
disposing a first near-field antenna within a first near-field coupling range of a first motion to be measured;
outputting, via the NCS with the first near-field antenna, a first sensing signal within the near-field coupling range of the first motion to be measured to generate a first measurement signal that is modulated by the first motion;
detecting the first measurement signal; and
measuring the first motion based on the first measurement signal;
wherein the first near-field coupling range is less than about one wavelength of the first near-field antenna, and wherein the first measurement signal comprises an interference result of the first sensing signal and a first backscattered signal that is modulated by the first motion.