Title:
磁気共鳴励起信号の発生装置
Document Type and Number:
Japanese Patent JP4195423
Kind Code:
B2
Abstract:
A generator device for a magnetic resonance excitation signal has a signal divider that divides an input signal supplied to it via an input element into at least two sub-signals and supplies them to amplification stages. The amplification stages amplify the respective sub-signals to produce amplified signals and supply the amplified signals to a signal combiner that combines them to form an aggregate signal, which is made externally available via an output element. Sensor devices that precede the signal divider and the signal combiner, acquire a reference signal that corresponds to the input signal and actual signals that correspond to the amplified signals and supply them to a control device. The control device acts on at least one of the amplification stages to cause the amplified signals to exhibit a predetermined amplitude ratio and a predetermined phase relation relative to one another.
Inventors:
Adam Albrecht
Horst creckel
Wilfried Schnell
Marx Fester
Horst creckel
Wilfried Schnell
Marx Fester
Application Number:
JP2004219556A
Publication Date:
December 10, 2008
Filing Date:
July 28, 2004
Export Citation:
Assignee:
Siemens Aktiengesellschaft
International Classes:
G01R33/20; G01R33/36; A61B5/055
Foreign References:
| US20030034837 | ||||
| US20010022532 |
Attorney, Agent or Firm:
Iwao Yamaguchi