The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2022
Filed:
May. 27, 2021
Applicant:
Topgolf Sweden Ab, Danderyd, SE;
Inventor:
Jonny Eriksson, Danderyd, SE;
Assignee:
Topgolf Sweden AB, Danderyd, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/62 (2006.01); G01S 13/58 (2006.01); G01S 7/41 (2006.01); G01S 13/72 (2006.01);
U.S. Cl.
CPC ...
G01S 13/62 (2013.01); G01S 13/583 (2013.01); G01S 7/415 (2013.01); G01S 13/584 (2013.01); G01S 13/723 (2013.01);
Abstract
A method for estimating a spin of a projectile, the method comprising obtaining from a radar transceiver a first time series comprising observations of a radial velocity of the projectile relative to the radar transceiver, calculating, from the first time series, a center velocity of the projectile, extracting from the first time series a second time series comprising a variation in the first time series around the calculated center velocity estimating a frequency of the second time series, and determining the spin of the projectile WO based on the estimated frequency of the second time series.