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:
Feb. 21, 2006
Filed:
Mar. 21, 2003
Jaako Maunuksela, Espoo, FI;
Jussi Vepsäläinen, Helsinki, FI;
Tuomas Honkanen, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
Disclosed is apparatus for operating with an RC filter (A), and a corresponding method. The apparatus includes circuitry () for use in measuring an actual value of at least one filter component and a controller (), coupled to the measurement circuitry, for determining at least one adaptive filter () coefficient using the measured actual value to so as to compensate for a deviation of at least one filter component value from an ideal value. Where the filter is embodied as an RC network, the circuitry measures an actual value of both a resistor and a capacitor, and the controller uses the measured actual value of the capacitor when determining the value of a resistor.