System and method for RFID-enabled information collection
US9336421B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Nov 21, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47F1/126
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatuses and systems for radio frequency identification (RFID)-enabled information collection are disclosed, including an enclosure, a collector coupled to the enclosure, an interrogator, a processor, and one or more RFID field sensors, each having an individual identification, disposed within the enclosure. In operation, the interrogator transmits an incident signal to the collector, causing the collector to generate an electromagnetic field within the enclosure. The electromagnetic field is affected by one or more influences. RFID sensors respond to the electromagnetic field by transmitting reflected signals containing the individual identifications of the responding RFID sensors to the interrogator. The interrogator receives the reflected signals, measures one or more returned signal strength indications (“RSSI”) of the reflected signals and sends the RSSI measurements and identification of the responding RFID sensors to the processor to determine one or more facts about the influences. Other embodiments are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.