RFID conveyor system
US7554447B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Mar 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1012
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A conveyor system for processing items on which radio frequency identification tags are disposed includes a frame, a conveyor that is disposed moveably on the frame and that conveys items through a path of travel, each item having at least one respective radio frequency identification tag disposed thereon. A first antenna is disposed proximate the path of travel so that the first antenna radiates first radio frequency signals into a first area through which the items pass. A second antenna is disposed proximate the path of travel so that the second antenna receives first responses to the first radio frequency signals from the respective radio frequency identification tags. The information identifies a class protocol. A third antenna is disposed proximate the path of travel downstream from the first antenna and the second antenna. A fourth antenna is disposed proximate the path of travel so that the fourth antenna receives second responses to the radio frequency signals from the respective radio frequency identification tags. A transmitter drives the first antenna to emit the first radio frequency signals into the first area and drives the third antenna to emit second radio frequenc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.