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. 19, 1991
Filed:
Mar. 26, 1990
Applicant:
Inventors:
Robert M Vavrek, Waukesha, WI (US);
Thomas G McFarland, Hartland, WI (US);
Assignee:
General Electric Company, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324309 ; 324322 ;
Abstract
A magnetic resonance imaging system uses a pool of amplifiers to generate gradient signals. Each amplifier within the pool may be switched among any of the gradient axes, so as to efficiently allocate amplifier power among the gradients. In one embodiment, the amplifiers of the pools are connected in stacks by an input and output matrix comprised of mechanical switches driven in tandem by interlocked motors. The switches connect the outputs of the amplifiers in series. The input signal is 'boot strapped' through the amplifier stack to provide proper signal level.