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:
Jun. 24, 2025
Filed:
Feb. 11, 2022
Applicant:
Schaffner Emv Ag, Luterbach, CH;
Inventors:
Alessandro Amaducci, Deitingen, CH;
Enrico Mazzola, Gerlafingen, CH;
Assignee:
Schaffner EMV AG, Luterbach, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03H 11/04 (2006.01); H03H 11/12 (2006.01);
U.S. Cl.
CPC ...
H03H 11/12 (2013.01); H03H 11/04 (2013.01);
Abstract
An active filter for suppressing an unwanted noise component from an electric supply line connecting a noise source and a load device, the active filter comprising a first active stage and a second active stage on the supply line, wherein the first active stage is between the noise source and the second active stage, wherein the first active stage has a first attenuation, and the second active stage has a second attenuation, characterized in that the first attenuation is lower than the second attenuation.