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:
May. 19, 2026
Filed:
Apr. 24, 2020
Inventio Ag, Hergiswil, CH;
Florian Trösch, Erlenbach, CH;
Armin Wittneben, Zürich, CH;
Henry Ruben Lucas Schulten, Zürich, CH;
Janick Daniel Zwyssig, Sisikon, CH;
Marc Kuhn, Gockhausen, CH;
Abstract
In an access control system for a building, a security gate separates a restricted-access zone from a public zone. Radio devices are arranged at established distances from the security gate and define a monitoring area. A control device of the system is communicatively coupled to a building device, and a data storage device stores processing instructions for situation-specific calibration modes. A signal processing device evaluates the radio communication in the monitoring area, determines at least one situation indicator therefrom which indicates a radio situation prevailing in the monitoring area and, for each radio device, captures a received signal strength indicator and uses it to determine at least one situation indicator (RSSI) based on radio communication with a first wireless device. The signal processing device selects a calibration mode assigned to the at least one situation indicator and reads the processing instructions assigned to this calibration mode from the data storage device. The signal processing device determines a current position (P') of the first wireless device as a function of the received signal strength indicators (RSSI) according to the processing instructions that have been read.