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. 29, 2005
Filed:
Oct. 04, 2004
J. Thomas Vaughan, Stillwater, MN (US);
Gregor Adriany, Minneapolis, MN (US);
Kamil Ugurbil, Minneapolis, MN (US);
John Strupp, Coon Rapids, MN (US);
Peter Andersen, Independence, MN (US);
J. Thomas Vaughan, Stillwater, MN (US);
Gregor Adriany, Minneapolis, MN (US);
Kamil Ugurbil, Minneapolis, MN (US);
John Strupp, Coon Rapids, MN (US);
Peter Andersen, Independence, MN (US);
Regents of the University of Minnesota, Minneapolis, MN (US);
Abstract
An excitation and detection circuit having individually controllable elements for use with a multi-element radio frequency coil. Characteristics of the driving signal, including, for example, the phase, amplitude, frequency and timing, from each element of the circuit is separately controllable using small signals. Negative feedback for the driving signal associated with each coil element is derived from a receiver coupled to that coil element.