RFID reader with automatic near/far field interrogation mode switching, and related operating methods
US8305192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Apr 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10386
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A dual-mode RFID reader is capable of automatically switching from a far-field interrogation mode to a near-field interrogation mode upon the detection of certain operating or handling conditions. The RFID reader includes an RFID radio module configured to support a far-field interrogation mode and a near-field interrogation mode, an antenna arrangement coupled to the RFID radio module, and a mode-switch sensor architecture coupled to the RFID radio module. The mode-switch sensor architecture is configured to detect conditions indicative of near-field interrogation, and the RFID radio module automatically configures itself for operation in the near-field interrogation mode upon detection of such conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.