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.
Patent No.:
Date of Patent:
Oct. 14, 2014
Filed:
Sep. 22, 2009
Mikko Kaltiokallio, Espoo, FI;
Jussi Ryynanen, Vantaa, FI;
Mikko Kaltiokallio, Espoo, FI;
Jussi Ryynanen, Vantaa, FI;
Nokia Corporation, Espoo, FI;
Abstract
An amplifier circuitry having adjustable parameters is presented. The present amplifier circuitry includes a feed-back loop, wherein the feedback loop converts () a signal to another frequency, filters () the signal in the other frequency, and restores () the filtered signal back to the original frequency for inputting the signal to an input of the amplifier (). The feed-back loop implements a band-stop filter () having an adjustable stopband causing the amplifier circuitry to have an adjustable band-pass response. A passband of the amplifier circuitry is changed from one operating frequency to another operating frequency by changing frequency conversion parameters of the feedback loop.