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    • 54. 发明申请
    • METHOD AND ARRANGEMENT TO TRANSMIT MAGNETIC RESONANCE SIGNALS
    • 发射磁共振信号的方法和装置
    • US20100201365A1
    • 2010-08-12
    • US12704697
    • 2010-02-12
    • Jan Bollenbeck
    • Jan Bollenbeck
    • G01R33/44
    • G01R33/341G01R33/3607G01R33/3621G01R33/3635
    • In a method and an arrangement for magnetic resonance signal transmission, a first channel of a local coil arrangement has a first individual antenna that receives a first magnetic resonance signal, and a first frequency converter connected with the first individual antenna, and the first frequency converter forms a first signal with the first magnetic resonance signal supplied thereto and a first oscillator signal supplied thereto. A second channel of the local coil arrangement has a second individual antenna that receives a second magnetic resonance signal, and a second frequency converter connected with the second individual antenna, and the second frequency converter forms a second signal from the second magnetic resonance signal supplied thereto and a second oscillator signal supplied thereto. The local coil arrangement has a signal combination device that applies the first signal and the second signal to a single transmission path. At least one of the oscillator signals has a frequency that corresponds to the difference between the frequency of a first synthesizer frequency signal and the frequency of a second synthesizer frequency signal that are supplied to the local coil arrangement.
    • 在用于磁共振信号传输的方法和装置中,本地线圈装置的第一通道具有接收第一磁共振信号的第一单独天线和与第一单独天线连接的第一频率转换器和第一变频器 形成第一信号,其中提供有第一磁共振信号并提供第一信号。 本地线圈装置的第二通道具有接收第二磁共振信号的第二单独天线和与第二单独天线连接的第二频率转换器,并且第二频率转换器从提供给它的第二磁共振信号形成第二信号 和向其提供的第二振荡器信号。 本地线圈装置具有将第一信号和第二信号施加到单个传输路径的信号组合装置。 至少一个振荡器信号具有对应于第一合成器频率信号的频率与提供给局部线圈装置的第二合成器频率信号的频率之间的差的频率。
    • 55. 发明授权
    • Arrangement for signal conversion
    • 信号转换安排
    • US07583084B2
    • 2009-09-01
    • US11970590
    • 2008-01-08
    • Jan Bollenbeck
    • Jan Bollenbeck
    • G01V3/00
    • G01R33/3621G01R33/3415
    • 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.
    • 在将磁共振装置的采集线圈的模拟采集信号转换为数字信号的布置中,采集线圈的输出与低噪声放大器连接,使得来自采集线圈的模拟采集信号到达 放大器。 放大器在输出侧连接有用于模拟数字转换的器件,使得模拟采集信号到达用于模数转换的器件,作为用于模数转换的放大采集信号。 用于模拟数字转换的器件被设计为Δ-Σ调制器,其从放大的采集信号形成宽度为一位的数字数据流。
    • 57. 发明申请
    • ARRANGEMENT FOR SIGNAL CONVERSION
    • 信号转换安排
    • US20080164879A1
    • 2008-07-10
    • US11970590
    • 2008-01-08
    • Jan Bollenbeck
    • Jan Bollenbeck
    • G01R33/36H03M3/00G01V3/38
    • G01R33/3621G01R33/3415
    • 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.
    • 在将磁共振装置的采集线圈的模拟采集信号转换为数字信号的布置中,采集线圈的输出与低噪声放大器连接,使得来自采集线圈的模拟采集信号到达 放大器。 放大器在输出侧连接有用于模拟数字转换的器件,使得模拟采集信号到达用于模数转换的器件,作为用于模数转换的放大采集信号。 用于模拟数字转换的器件被设计为Δ-Σ调制器,其从放大的采集信号形成宽度为一位的数字数据流。
    • 59. 发明申请
    • Reception System for Local Coils of a Magnetic Resonance Imaging System
    • 磁共振成像系统局部线圈接收系统
    • US20150285887A1
    • 2015-10-08
    • US14670817
    • 2015-03-27
    • Jan Bollenbeck
    • Jan Bollenbeck
    • G01R33/56G01R33/385G01R33/36
    • G01R33/56G01R33/3621G01R33/385
    • 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.
    • 提供了一种用于将磁共振信号从局部线圈发送到磁共振成像系统的图像处理单元的接收系统的装置,磁共振成像系统和使用方法。 该装置包括用于接收和处理来自本地线圈的模拟信号的模拟接收器,其被配置为直接采样具有不同单独频带和/或频带对的模拟信号,以区分模拟信号并对它们进行不同的处理。 该装置还包括用于将来自本地线圈的处理的模拟信号转换成数字信号的A / D转换器。 该装置还包括用于处理数字信号的数字信号处理器,其中数字信号处理器包括韦弗单元和下游抽取滤波器单元。