RFID scanning system and shopping bag with integrated RFID loop antenna
US8678281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10178
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A point of sale system and method are disclosed wherein a shopping bag has one or more RFID loop type antenna. An example system includes a bag holder for securing the shopping bag while items are placed in it. Multiple bag holders may be incorporated on a carousel, which can be rotated to move an empty bag to a filling station at the checkout counter, and to move filled bags to an open area for the customer or cashier to retrieve the filled shopping bags. An RFID reader in communication with the bag holder uses one of the RFID loop antennas to read the RFID tags on the items placed in the bag. In a shopping bag having more than one RFID loop antenna, the RFID system controller may monitor the impedance of each RFID loop antenna and dynamically select one of the RFID loop antennas on the shopping bag as a function of the impedances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.