Patent · US Active

Receiver arrangement with AC coupling

US7929936B2 · kind B2 · utility

3Cited by

15References

20Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Bernd Adler · Neubiberg, DE
Dieter Pimingsdorfer · Linz, AT
Harald Pretl
Werner Schelmbauer · Linz, AT

Key dates

Filing date	Jun 21, 2002
Grant date	Apr 19, 2011
Priority date	—
Expiry date	Dec 4, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/30
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A receiver arrangement with AC coupling is specified in which a filter arrangement (3) is provided in a baseband signal processing chain in a homodyne receiver and can be switched between at least two high-pass filter cut-off frequencies. In this case, a brief changeover is made to a higher cut-off frequency when varying the gain of a low-noise baseband amplifier (2), for example when the received field strength changes, during the reception mode. The described arrangement allows changes to be carried out to the gain in baseband during the normal reception mode. The present receiver is accordingly suitable for code division multiple access methods, such as those which are provided in the UMTS Standard.

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