Radio-frequency identification (RFID) tag-to-tag autoconnect discovery, and related methods, circuits, and systems
US9165232B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/138
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, circuits, and systems are disclosed for automatically detecting connections between RFID tags. In one embodiment, a method is provided that includes periodically placing a charge on a node shared between a first RFID tag and a second RFID tag. The method also comprises sensing a voltage at the node at a time subsequent to the placing of the charge. The method also comprises automatically determining whether a connection exists between the first RFID tag and the second RFID tag based on the sensing of the voltage at the node. The first RFID tag and/or the second RFID tag may include circuitry configured to perform the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.