Invention Grant
- Patent Title: Arrangement to transmit magnetic resonance signals
- Patent Title (中): 传输磁共振信号的布置
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Application No.: US12465147Application Date: 2009-05-13
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Publication No.: US08055196B2Publication Date: 2011-11-08
- Inventor: Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Markus Vester
- Applicant: Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Markus Vester
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Schiff Hardin LLP
- Priority: DE102008023467 20080514
- Main IPC: H04B7/00
- IPC: H04B7/00

Abstract:
An arrangement for transmitting magnetic resonance signals, with a transmission link that connects a local coil with a receiver, has a first channel of the local coil with a first single antenna to acquire a first magnetic resonance signal, as well as a first mixer connected with the first single antenna. The first mixer forms an intermediate-frequency first signal from the supplied first magnetic resonance signal. A second channel of the local coil has a second single antenna to acquire a second magnetic resonance signal, as well as a second mixer connected with the second single antenna. The second mixer forms an intermediate-frequency second signal from the supplied second magnetic resonance signal. The local coil has a device for signal combination that, by frequency multiplexing, that combines the intermediate-frequency first signal of the first channel and the intermediate-frequency second signal of the second channel so that it arrives at the receiver via the transmission path. The receiver has an A/D converter at which one of the transmitted intermediate-frequency signals of an associated channel arrives in order to be sampled with a sampling frequency for digitization. For frequency conversion, a first local oscillator frequency is connected at the first mixer and a second local oscillator frequency is connected at the second mixer. the first and second local oscillator frequencies are selected such that intermediate-frequencies formed by the frequency conversion are mirror-symmetrical relative to the sampling frequency of the A/D converter.
Public/Granted literature
- US20090286478A1 ARRANGEMENT TO TRANSMIT MAGNETIC RESONANCE SIGNALS Public/Granted day:2009-11-19
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