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. 17, 2025
Filed:
Dec. 11, 2024
Bruker Biospin Gmbh & Co. KG, Ettlingen, DE;
Michael Maixner, Bietigheim, DE;
Abstract
A circuit arrangement for correcting an input signal that includes a useful signal with a useful frequency and an interference signal with an interference frequency comprises: a high-pass filter with a cut-off frequency; an inverting operational amplifier circuit connected downstream from the high-pass filter and connected in series with the high-pass filter; an active rectifier circuit connected downstream from the inverting operational amplifier circuit and connected in series thereto, with two parallel-connected line paths, wherein each line path comprises a rectifying element; and a summing amplifier circuit connected downstream from the rectifier circuit, wherein the summing amplifier circuit has an inverting input and a non-inverting input and each line path is electrically connected to one of the inputs of the summing amplifier circuit. This provides a simple and compact circuit arrangement with which interference signals can be effectively suppressed.