Systems and methods for locating tags
US11449693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2020 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Dec 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/878
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for determining a physical location of a first Radio Frequency Identification (“RFID”) tag. The methods involve: analyzing timestamped tag read information acquired during multiple tag reads to determine a first physical location for the first RFID tag read by the mobile reader while moving through a facility; identifying second RFID tags from a plurality of RFID tags read by the mobile reader that are located in proximity to the first RFID tag and that are coupled to objects similar to an object to which the first RFID tag is coupled; selecting an RFID tag from the second RFID tags that has a first location confidence value associated therewith which is greater than second location confidence values associated with other RFID tags of the second RFID tags; and modifying the first physical location based on a second physical location of the RFID tag selected from the second RFID tags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.