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:
Apr. 06, 2021
Filed:
Apr. 28, 2017
Ubisense Limited, Cambridge, GB;
Peter Joseph Steggles, Cambridge, GB;
Ubisense Limited, Cambridge, GB;
Abstract
A method for detecting the presence of an object in a zone by means of a wireless detector located proximal to the zone, the wireless detector comprising an orientation sensor for sensing the spatial attitude of the detector, the method comprising: defining a solid angle relative to a first spatial reference plane, the solid angle being defined such that at least part of the zone is within that solid angle when the solid angle is projected from the location of the detector; detecting by means of the detector a wireless signal from the object, and thereby estimating the direction of the object from the detector with reference to a second spatial reference plane fixed relative to the detector; sensing by means of the orientation sensor the spatial attitude of the detector; and comparing the solid angle and the estimated direction in dependence on the sensed spatial attitude so as to determine whether the object is present in the zone.