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:
Sep. 05, 2023
Filed:
Apr. 08, 2022
GE Precision Healthcare Llc, Wauwatosa, WI (US);
Robert Steven Stormont, Hartland, WI (US);
Victor Taracila, Beachwood, OH (US);
Fraser John Laing Robb, Aurora, OH (US);
Thomas Grafendorfer, Mill Valley, CA (US);
Louis Jay Vannatta, Crystal Lake, IL (US);
Yun-Jeong Stickle, Solon, OH (US);
GE Precision Healthcare LLC, Wauwatosa, WI (US);
Abstract
A preamplifier arrangement for an MRI system includes a preamplifier coupled to a loop of a multi-channel coil array of the MRI system, wherein the preamplifier and the loop are subject to potentially form an unstable system with oscillation at one or more peak frequencies. The preamplifier arrangement also includes an impedance matching network disposed between and coupled to the preamplifier and the loop. The impedance matching network is configured to generate a high blocking impedance. The preamplifier arrangement further includes an input network disposed between and coupled to the preamplifier and the loop. The input network is configured to provide an input to suppress gain at the one or more peak frequencies.