Title:
MAGNETIC RESONANCE IMAGING DEVICE AND HIGH-FREQUENCY OUTPUT MEASUREMENT DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/050818
Kind Code:
A1
Abstract:
A magnetic resonance imaging device high-frequency output measurement device comprises: a plurality of directional couplers with different coupling degrees which attenuate a high-frequency signal which arises in a high-frequency signal emitter and is amplified with a high-frequency power amplifier; a comparator which compares input level information, of the signal which is inputted into the high-frequency power amplifier, with a threshold; a switch which outputs the high-frequency signal from one of the directional couplers among the plurality of directional couplers by switching to the one of the directional couplers on the basis of the result of the comparison; and a converter which converts the high-frequency signal from the one of the directional couplers to digital and outputs same.
Inventors:
NAKAMURA HARUKI
SOEJIMA KAZUYUKI
KATO SOJIYUURO
SOEJIMA KAZUYUKI
KATO SOJIYUURO
Application Number:
PCT/JP2013/075717
Publication Date:
April 03, 2014
Filing Date:
September 24, 2013
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MEDICAL SYS CORP (JP)
TOSHIBA MEDICAL SYS CORP (JP)
International Classes:
A61B5/055
Foreign References:
| JPH0919413A | 1997-01-21 | |||
| JPH0587842A | 1993-04-06 | |||
| JPH07246194A | 1995-09-26 | |||
| JPH11253416A | 1999-09-21 | |||
| JPH0545387A | 1993-02-23 |
Attorney, Agent or Firm:
TOKYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Tokyo international patent firm (JP)
Patent business corporation Tokyo international patent firm (JP)
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