Patent · US Active

RF receiver with built-in self-test function

US10057795B2 · kind B2 · utility

10Cited by

28References

22Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Florian Starzer · Ansfelden, AT
Peter Bogner · Wernberg, AT
Oliver Frank · Hannover, DE
Guenter Haider · Linz, AT
Michael Kropfitsch · Ferlach, AT
Thomas Sailer · Metzingen, DE
Jochen Schrattenecker · Eisenlohrsweg, AT
Rainer Stuhlberger · Puchenau, AT

Key dates

Filing date	Jun 1, 2017
Grant date	Aug 21, 2018
Priority date	—
Expiry date	Jun 8, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/1245
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A radio frequency (RF) receive circuit is described herein. In accordance with one embodiment, the RF receive circuit includes a mixer configured to receive an RF input signal to down-convert the RF input signal into a base-band or intermediate frequency (IF) band, an analog-to-digital converter (ADC), and a signal processing chain coupled between the mixer and the ADC. The signal processing chain includes at least two circuit nodes. The RF receive circuit further includes an oscillator circuit that is configured to generate a test signal. The oscillator circuit is coupled to the signal processing chain and is configured to selectively feed the oscillator signal into one of the at least two circuit nodes.

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