Array of very light readers for active RFID and location applications
US10534938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Feb 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An example method includes estimating whether a collision occurred between a plurality of wide band response signals, the wide band response signals being responsive to a first interrogation signal transmitted by a first reader; when the collision is estimated to have occurred and the first reader received a first response from a particular tag, transmitting, by the first reader, a second interrogation signal, the second interrogation signal initiating a communication session between the reader and the particular tag; and transmitting, by the first reader, an acknowledgement packet to cause the tag to refrain from responding to a command during the communication session; and a second reader to refrain from interrogating the particular tag during the communication session.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.