Patent · US Active

RFID transponder and method for operating the same

US8923791B2 · kind B2 · utility

1Cited by

2References

13Claims

0Family size

Assignee

TEXAS INSTRUMENTS DEUTSCHLAND GMBH · DE

Inventors

Ernst Muellner · Munich, DE
Carlo Peschke · Kirchheim unter Teck, DE

Key dates

Filing date	Dec 8, 2011
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Mar 7, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG07C2009/00793
WIPO fieldControl
WIPO sectorInstruments

Abstract

An RFID transponder having an analog front end receiver having an attenuator coupled to receive an RF-signal from an antenna and to attenuate the RF-signal, an amplifier having a fixed amplifier gain and being coupled to receive and to amplify the attenuated RF-signal and a control unit coupled to control a gain of the attenuator, wherein the control unit is configured to control the attenuator gain in response to a level of the amplified RF-signal, the control unit is configured to have a plurality of predetermined states causing the attenuator to increase (step-up) or to decrease (step-down), its gain by a predefined step size.

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