Patent · US Active

Tag communication devices

US8441340B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Franz Amtmann · Graz, AT
Thomas Wille · Boynton Beach, US
Hauke Meyn · Krempermoor, DE
Mathias Wagner · Seevetal, DE

Key dates

Filing date	Mar 14, 2011
Grant date	May 14, 2013
Priority date	—
Expiry date	Nov 18, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06K7/0008
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A contactless tag reader device comprises upper and lower electrodes which together define a tag location zone between them in which multiple tags can be placed. The lower electrode and the upper electrode are offset from each other such that they substantially do not overlap. This structure is used to sandwich tags vertically between two horizontally (laterally) offset reader electrodes. This enables power coupling and data transfer using capacitive coupling.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.