Reception System for Local Coils of a Magnetic Resonance Imaging System
First Claim
1. An apparatus for a reception system for transmitting magnetic resonance signals from local coils to an image processing unit of a magnetic resonance imaging system, the apparatus comprising:
- an analog receiver for receiving and processing analog signals from the local coils, the analog receiver configured to directly sample analog signals having different individual frequency bands, frequency band pairs, or frequency bands and frequency band pairs, to distinguish the analog signals and to process the analog signals differently;
an analog/digital (A/D) converter for converting the processed analog signals from the local coils into digital signals; and
a digital signal processor for processing the digital signals, the digital signal processor comprising a Weaver unit and a downstream decimation filter unit.
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Abstract
An apparatus, a magnetic resonance imaging system, and a method of use are provided for a reception system for transmitting magnetic resonance signals from local coils to an image processing unit of a magnetic resonance imaging system. The apparatus includes an analog receiver for receiving and processing analog signals from the local coils that is configured to directly sample analog signals having different individual frequency bands and/or frequency band pairs, to distinguish the analog signals and to process them differently. The apparatus also includes an A/D converter for converting the processed analog signals from the local coils into digital signals. The apparatus further includes a digital signal processor for processing the digital signals, wherein the digital signal processor includes a Weaver unit and a downstream decimation filter unit.
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Citations
19 Claims
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1. An apparatus for a reception system for transmitting magnetic resonance signals from local coils to an image processing unit of a magnetic resonance imaging system, the apparatus comprising:
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an analog receiver for receiving and processing analog signals from the local coils, the analog receiver configured to directly sample analog signals having different individual frequency bands, frequency band pairs, or frequency bands and frequency band pairs, to distinguish the analog signals and to process the analog signals differently; an analog/digital (A/D) converter for converting the processed analog signals from the local coils into digital signals; and a digital signal processor for processing the digital signals, the digital signal processor comprising a Weaver unit and a downstream decimation filter unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for operating an apparatus for a reception system for transmitting magnetic resonance signals from local coils to an image processing unit of a magnetic resonance imaging system, the method comprising:
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directly sampling, distinguishing, and processing analog signals from the local coils comprising at least two different frequency bands, frequency band pairs; and converting the processed analog signal from the local coils into digital signals, wherein the frequency bands of the frequency band pairs are isolated from one another and the frequency of the frequency band pairs and of the individual frequency bands is converted and the data rates thereof are reduced.
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19. A magnetic resonance imaging system comprising:
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local coils; an image processing unit; and an apparatus for a reception system for transmitting magnetic resonance signals from the local coils to the image processing unit, wherein the apparatus comprises; an analog receiver for receiving and processing analog signals from the local coils, the analog receiver configured to directly sample analog signals having different individual frequency bands, frequency band pairs, or frequency bands and frequency band pairs, to distinguish the analog signals and to process the analog signals differently; an analog/digital (A/D) converter for converting the processed analog signals from the local coils into digital signals; and a digital signal processor for processing the digital signals, the digital signal processor comprising a Weaver unit and a downstream decimation filter unit.
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Specification