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:
Feb. 27, 2007
Filed:
Dec. 18, 2003
Ingmar Gräβlin, Bönningstedt, DE;
Christoph Günther Leussler, Hamburg, DE;
Ingmar Gräβlin, Bönningstedt, DE;
Christoph Günther Leussler, Hamburg, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a high-frequency system for an MR apparatus with a high-frequency coil arrangement comprising a plurality of resonator elements (), which is connected to a transmit unit (), where a respective transmit channel (1–8) of the transmit unit () is assigned to the resonator elements (). In order to provide a high-frequency system of this kind at low cost, by means of which a high frequency field can be generated in an examination volume () with a field distribution that can be preselected flexibly and variably, the invention proposes that the transmit unit () is equipped with a plurality of high-frequency amplifiers (), the inputs of which can receive low-power transmit signals via a first controllable multiplexer/distributor network (), in which the output signals of the high-frequency amplifiers () can be distributed over the transmit channels () via a second controllable multiplexer/distributor network (). In addition, the invention relates to an MR apparatus with a high-frequency system of this kind.