Combined low and high frequency RFID system
US7456743B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Apr 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/2208
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency identification (RFID) system is described, including a low frequency read-write device (1B) comprising an antenna (2B) connected to a transceiver (4B), for receiving/transmitting low RF waves from/to an RFID tag (5B), and a decoder (3B) for decoding said low RF waves into digital data (dig-B); an host computer (20) is intended to be connected to the low frequency read-write device (1B) for processing digital data (dig-B). The RFID system further includes a high frequency read-write device (1A), comprising an antenna (2A) connected to a transceiver (4A), for receiving/transmitting high RF waves from/to an RFID tag (5A), and a decoder (3A) for decoding said high RF waves into digital data (dig-A); the high frequency read-write device is connected to a low frequency read-write device (1B) and to an host computer (20) respectively through a driver connection (22) and an host connection (21). A bundle interface (ITF), receives digital data (dig-A, dig-B) through the driver connection (22) while a flow controller (SW) drives the flow of such digital data (dig-A, dig-B) through host connection (21) and towards the host computer (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.