Patent · US Expired

Contactless data storage medium

US6946958B2 · kind B2 · utility

8Cited by

12References

5Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Harald Gundlach · Winnweiler, DE
Michael Hochholzer · Ottobrunn, DE
Gerald Holweg · Graz, AT
Andreas Muller-Hipper · Regensburg, DE
Jens Riedel · Jever, DE
Walter Kargl · Graz, AT

Key dates

Filing date	May 13, 2003
Grant date	Sep 20, 2005
Priority date	—
Expiry date	May 13, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q21/30
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A contactless data storage medium has at least two antennas, in each case for different transmission bands. This makes it possible to configure a data storage medium such that it can be operated with read/write units that operate in accordance with different standards. At least two of the antennas form a unit, so that a configuration such as this can be produced at very low cost.

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