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:
Mar. 22, 1994
Filed:
Apr. 15, 1992
Applicant:
Inventor:
David E Lyle, Brookfield, WI (US);
Assignee:
General Electric Company, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324322 ;
Abstract
A device for coupling a radio frequency transceiver of an MRI system utilizes a tunable hybrid network. The network is formed of fixed value capacitors connected to transmission lines that provide inductive reactance to the network. The connection of the components is such that an input signal applied to one node produces a pair of signals in quadrature at two other nodes. In order to insure that the pair of signals have the proper phase and amplitude relationship a fixed capacitor is connected across specific pairs of the transmission lines. The point of connection of that capacitor to the transmission lines is chosen to properly tune the network.