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:
Nov. 22, 2011
Filed:
Dec. 19, 2007
Applicant:
Kimmo Koli, Helsinki, FI;
Inventor:
Kimmo Koli, Helsinki, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Various embodiments are disclosed relating to techniques of filtering and down-converting a received signal. In accordance with an example embodiment of the present invention, an analog signal may be received and amplified in a transconductance amplifier. The amplified signal may be connected to a switching arrangement and an impedance circuit connected in series, and frequency down-converted in a second circuit. The resulting analog base band signal may be fed back to a base band input between the switching arrangement and the impedance circuit.