Title:
FREQUENCY DOMAIN MULTIPLEXED TRANSMISSION OF MR SIGNALS FROM A RECEIVER COIL ARRAY
Document Type and Number:
WIPO Patent Application WO2006075214
Kind Code:
A3
Abstract:
A coils array (40, 40') including a plurality of coils (71, 72, 73) receives magnetic resonance signals from an examination region of a magnetic resonance imaging scanner (10). Each coil has mixing circuitry (74, 75, 76, 80, 81, 82) that frequency-shifts the received magnetic resonance signal to a selected transmission channel frequency. The coils array further includes combining circuitry (90) that combines the frequency-shifted magnetic resonance signals to produce an analog frequency domain multiplexed transmission signal output of the coils array. Receiver electronics (56, 56") receive the analog frequency domain multiplexed transmission signal from the coils array. The receiver electronics include an analog-to-digital converter (164) that digitizes the analog frequency domain multiplexed transmission signal and digital signal processing circuitry (166) that processes the digital frequency domain multiplexed transmission signal to recover digitized signals corresponding to the magnetic resonance signals received by the plurality of coils.
More Like This:
Inventors:
EHNHOLM GOSTA (FI)
Application Number:
PCT/IB2005/054052
Publication Date:
November 02, 2006
Filing Date:
December 05, 2005
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS CORP (US)
EHNHOLM GOSTA (FI)
PHILIPS CORP (US)
EHNHOLM GOSTA (FI)
International Classes:
G01R33/3415; G01R33/36
Foreign References:
| US5245288A | 1993-09-14 | |||
| US5384536A | 1995-01-24 | |||
| EP0554584A1 | 1993-08-11 | |||
| EP0467378A2 | 1992-01-22 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 09 4 September 2002 (2002-09-04)
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30)
PARK B-H ET AL: "A 1GHZ, LOW-PHASE-NOISE CMOS FREQUENCY SYNTHESIZER WITH INTEGRATED LC VCO FOR WIRELESS COMMUNICATIONS", PROCEEDINGS OF THE IEEE 1998 CUSTOM INTEGRATED CIRCUITS CONFERENCE. CICC '98. SANTA CLARA, CA, MAY 11 - 14, 1998, ANNUAL CUSTOM INTEGRATED CIRCUITS CONFERENCE, NEW YORK, NY : IEEE, US, vol. CONF. 20, 11 May 1998 (1998-05-11), pages 567 - 570, XP000900400, ISBN: 0-7803-4293-3
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30)
PARK B-H ET AL: "A 1GHZ, LOW-PHASE-NOISE CMOS FREQUENCY SYNTHESIZER WITH INTEGRATED LC VCO FOR WIRELESS COMMUNICATIONS", PROCEEDINGS OF THE IEEE 1998 CUSTOM INTEGRATED CIRCUITS CONFERENCE. CICC '98. SANTA CLARA, CA, MAY 11 - 14, 1998, ANNUAL CUSTOM INTEGRATED CIRCUITS CONFERENCE, NEW YORK, NY : IEEE, US, vol. CONF. 20, 11 May 1998 (1998-05-11), pages 567 - 570, XP000900400, ISBN: 0-7803-4293-3
Download PDF:
Previous Patent: NMR MAS PROBE WITH CRYOGENICALLY COOLED CRITICAL CIRCUIT COMPONENTS
Next Patent: INDUCTOR
Next Patent: INDUCTOR