Transition zone RFID tag management
US12080136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2021 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Aug 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Deploying at each transition between separate areas of a facility a plurality of RFID reader antennas. Each antenna is deployed at a given transition covering a span of the given transition from a different perspective such that each point in the span is covered by at least two antennas. The antennas of a first transition between a first area and a second area of the separate areas detect, and in combination with an RFID system in communication with the antennas of the first transition, a tag known to have been in the first area. The RFID system identifies an item associated with the detected tag as moving to the second area. The antennas of a particular transition of the second area subsequently detect, in combination with the RFID system in communication therewith, the tag, and identifying the detected item as leaving the second area for an area across the particular transition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.