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. 07, 2006
Filed:
Apr. 02, 2002
Matthias Vierthaler, Freiburg, DE;
Matthias Vierthaler, Freiburg, DE;
Micronas GmbH, Freiburg, DE;
Abstract
A device for detecting and suppressing noise includes a noise detection device that receives and processes an input signal to determine if the input signal contains noise and provides a detected noise signal indicative of whether or not noise is detected in the input signal. A noise filter receives the input signal and when the detected noise signal does not indicate the presence of noise the noise filter provides an output signal equal to input signal. When the detected noise signal indicates the presence of noise the noise filter processes the input signal through a first filter to provide a filtered signal such that the output signal is equal to the filtered signal. The noise filter comprises a control circuit that receives the input signal and the filtered signal and in response dynamically adjusts a cut-off frequency control signal that controls a cut-off frequency of the first filter.