Digital magnetic resonance gradient pre-emphasis

Details Digital magnetic resonance gradient pre-emphasis Digital magnetic resonance gradient pre-emphasis

2007-07-03

2007-07-03

Shrivastav, Brij B. (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S318000

Reexamination Certificate

active

10557285

ABSTRACT:
A magnetic field gradient system includes a magnetic field gradient coil (20) and a magnetic field gradient amplifier (30) that operatively communicates with the magnetic field gradient coil (20). A pre-emphasis digital circuit (36) receives a digital magnetic field gradient control signal and outputs pre-emphasis correction terms. The preemphasis digital circuit includes a delay circuit (92) that delays the digital magnetic field gradient control signal by a selected time interval to produce a delayed digital magnetic field gradient control signal. A plurality of digital filters (110) each have selected time constant and amplitude parameters. The digital filters (110) receive the delayed digital magnetic field gradient control signal and output the pre-emphasis correction terms. A parameter memory (114) stores at least the time constant and amplitude parameters of the digital filters (110).

REFERENCES:
patent: 5349296 (1994-09-01), Cikotte et al.
patent: 5442290 (1995-08-01), Crooks
patent: 5867027 (1999-02-01), Kawamoto
patent: 6154030 (2000-11-01), Wurl
patent: 6191582 (2001-02-01), Zur
patent: 6285304 (2001-09-01), Schweighofer
patent: 6903550 (2005-06-01), Uetake
patent: 0 307 516 (1989-03-01), None
patent: 1 039 309 (2000-09-01), None
patent: 2002-085369 (2002-03-01), None
Bartusek, K., et al.; Applications of Digital Signal Processors in a Gradient Controller for MR Tomography; 2002; www.electronicsletters.com/papers/2002/0011/paper.

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