The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 18, 2018

Filed:

Oct. 24, 2016
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Saverio Trotta, Munich, DE;

Reinhard Wolfgang Jungmaier, Vaterstetten, DE;

Dennis Noppeney, Cologne, DE;

Johann Peter Forstner, Steinhoering, DE;

Ismail Nasr, Unterhaching, DE;

Vadim Issakov, Munich, DE;

Andreas Wickmann, Nuremberg, DE;

Assignee:

INFINEON TECHNOLOGIES AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 17/00 (2015.01); H04B 17/14 (2015.01); H04B 17/21 (2015.01); H04B 1/38 (2015.01);
U.S. Cl.
CPC ...
H04B 17/14 (2015.01); H04B 1/38 (2013.01); H04B 17/21 (2015.01);
Abstract

In accordance with an embodiment, a method for operating a radio frequency (RF) transceiver includes frequency-translating, using a local oscillator signal having a calibrated phase shift, a signal received at an antenna of an RF transceiver; filtering the frequency-translated signal using a programmable filter of the RF transceiver to produce a filtered frequency-translated signal; and changing a cutoff frequency of the programmable filter from a first cutoff frequency to a second cutoff frequency in response to the RF transceiver switching operation from a first mode to a second mode.


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