Patent · US Active

Device and method for capacitive reading of a code

US8028912B2 · kind B2 · utility

0Cited by

5References

44Claims

0Family size

Assignee

Acreo AB · SE

Inventors

Petronella Norberg · Säter, SE
Joakim Haglund · Säter, SE
Staffan Nordlinder · Norrköping, SE

Key dates

Filing date	Jun 5, 2008
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Nov 21, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06K19/07788
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In one embodiment of the present invention, a reading device and a method for determining an identity code is disclosed arranged at a package for a product. At least one embodiment of the present invention is based on capacitive measurements performed in capacitors formed between antennas of the reading device and communication areas of the identity code. The reading device is provided with an antenna or activation element for decoupling or minimizing perturbation signals generated in an electrically conductive foil of the package.

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