Patent · US Expired

Transponder arrangement

US6411212B1 · kind B1 · utility

67Cited by

5References

30Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Johannes Hecht · Neu-Ulm, DE
Dietbert Kollbach · Jeffery Road, DE

Key dates

Filing date	Jul 21, 1999
Grant date	Jun 25, 2002
Priority date	—
Expiry date	Jul 21, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

For a transponder arrangement having a transponder arranged on an object, in order to achieve longer ranges than would be possible with a purely field-supplied response mode, the transponder is provided with a chargeable electrical energy store. An inductive supply of energy from a pump circuit situated on the object is used to hold the energy store in a charged state. The transponder arrangement can advantageously be interrogated not only in the active mode now made possible, but also in a passive mode which is known per se and is supplied with power purely by the interrogation field.

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