RFID interrogator having collision type identification function and control method thereof
US8779900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2009 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Nov 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an RFID interrogator having a collision type identification function and a control method thereof. It verifies whether or not a collision occurs in a received signal by analyzing data of a signal received from an RF communication unit and performs a corresponding collision resolution operation by diagnosing a collision type in accordance with a collision generation means between the corresponding RFID interrogator and other interrogators or a tag. Since all types of collisions that occur between the RFID interrogator and the tag can be identified, a reason for occurrence of the collisions can be rapidly recognized to cope with the reason for the collisions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.