Arrangement for signal conversion
AssigneeSiemens Aktiengesellschaft
InventorJan Bollenbeck
Life of this patent
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Abstract
In an arrangement for conversion of an analog acquisition signal of an acquisition coil of a magnetic resonance apparatus into a digital signal, the output of the acquisition coil is connected with a low-noise amplifier such that the analog acquisition signal from the acquisition coil arrives at the amplifier. The amplifier is connected at the output side with a device for analog-digital conversion, such that the analog acquisition signal arrives at the device for analog-digital conversion as an amplified acquisition signal for analog-digital conversion. The device for analog-digital conversion is designed as a delta-sigma modulator that forms a digital data stream with a width of one bit from the amplified acquisition signal.
Claims17
An arrangement for converting an analog acquisition signal, into a digital signal, comprising:
- a local coil of a magnetic resonance apparatus that acquires an analog acquisition signal;
- a low-noise amplifier having an input configured for connection to an output of the acquisition coil to receive the analog acquisition signal at the input of the amplifier, said amplifier amplifying said analog acquisition signal to form an amplified analog acquisition signal that is emitted at an output of the amplifier;
- an analog-to-digital converter having an input connected to the output of the amplifier, said analog-to-digital converter converting said amplified analog acquisition signal into a corresponding digital signal that is emitted at an output of the analog-to-digital converter;
- and
- said analog-to-digital converter being a delta-sigma modulator that forms a digital data stream with a width of one bit, as said digital signal, from said amplified acquisition signal.
Dependencies are inferred from the claim text.