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:
Dec. 16, 2025
Filed:
Jun. 17, 2020
Assa Abloy Entrance Systems Ab, Landskrona, SE;
Stefan Paulsson, Odakra, SE;
Patrik Lerpard, Limhamn, SE;
Assa Abloy Entrance Systems AB, Landskrona, SE;
Abstract
A system, method and computer program product for controlling the operation of a door () to a room, the method comprising (S) obtaining at least a first air pressure data () based on an air pressure on the inside of the door (), (S) obtaining at least a second air pressure data () based on the air pressure on the outside of the door (), and (S) determining at least a first air pressure difference data () based on the difference between the at least first air pressure data () and the at least second air pressure data (), and in a determination that the at least first air pressure difference data () is outside of a predefined value, or a predefined value interval, generate a control signal (CS) for controlling the operation of the door ().