Tag anti-collision method, reader apparatus and system for RFID systems with multi-packet reception capability
US9773132B2 · kind B2 · utility
8Cited by
0References
19Claims
0Family size
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Key dates
| Filing date | Feb 16, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a method of preventing collision between a plurality of RFID tags by an RFID reader. An anti-collision method by a tag reader apparatus in an RFID system including a plurality of RFID tags, includes changing a length of a collision recovery slot in the collision recovery slot which successfully identifies a plurality of tags even though at least two tags simultaneously replied in one slot to cause collision so that data transmission of at least one identified tag is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.