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. 04, 2025
Filed:
Dec. 21, 2023
Ubiety Technologies, Inc., Chicago, IL (US);
Mark Hoffmann, Lansing, IL (US);
Ubiety Technologies, Inc., Chicago, IL (US);
Abstract
A wireless device detection system includes sensors to receive temporary identifiers transmitted between a base station and a mobile wireless device. A cumulative distribution function for survival probability is generated based on delta times between multiple access events for each temporary identifier. In response to a new access event, a corresponding temporary identifier is added to a streaming list and assigned a survival probability value, based on the cumulative distribution function, to a latest access event for each temporary identifier contained in the streaming list. Temporary identifiers that have a survival probability value less than a threshold value are removed from the streaming list. The number of temporary identifiers contained in the streaming list are compared to a number of devices known to be present. The probability that a device corresponding to each of the temporary identifiers contained in the streaming list is present is determined.