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公开(公告)号：US08548560B2
公开(公告)日：2013-10-01
申请号：US12994172
申请日：2009-05-28
IPC分类号： A61B5/05
CPC分类号： H04L1/0006 , G01R33/3621 , G01R33/3692 , G06F19/00 , G06F19/321
摘要： A data rate controlling feedback loop evaluates an actual instantaneous available quality of service of a communication link for transmitting data and controls the data rate based on an evaluation result, Feedback control may both be local to a device for acquiring examination data, such as a magnetic resonance imaging coil, or over the communication link by reducing the data rate at least momentarily to fit the communication link's performance over time, enabling a graceful degradation of an image quality at lower data rates.
摘要翻译： 数据速率控制反馈环路评估用于发送数据的通信链路的实际即时可用服务质量，并且基于评估结果来控制数据速率，反馈控制可以是用于获取检查数据的设备的本地，例如磁 共振成像线圈，或者在通信链路上通过至少暂时降低数据速率以适应通信链路随时间的性能，从而能够以较低的数据速率优化图像质量。
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公开(公告)号：US20100259261A1
公开(公告)日：2010-10-14
申请号：US12665336
申请日：2008-06-16
申请人： Marc Paul Saes , Johan Samuel Van Den Brink , Filips Van Liere , Roel Penterman , Ralph Kurt , Emiel Peeters , Dirk Broer , Michel Paul Barbara Van Bruggen , Hans Van Zon , Miha Fuderer
发明人： Marc Paul Saes , Johan Samuel Van Den Brink , Filips Van Liere , Roel Penterman , Ralph Kurt , Emiel Peeters , Dirk Broer , Michel Paul Barbara Van Bruggen , Hans Van Zon , Miha Fuderer
IPC分类号： G01R33/48
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/3621 , G01R33/3692
摘要： The invention relates to a nuclear magnetic resonance imaging radio frequency—receiver (112; 216; 308; 404), the receiver (112; 216; 308; 404) being adapted to receive analogue signals from at least one radio frequency receiver coil unit (106; 200; 202; 300; 400; 402), the radio frequency receiver (112; 216; 308; 404) comprising: an analogue-digital converter (118; 226) to convert the analogue pre-amplified magnetic resonance signal into a digital signal, means (120; 230) for digital down converting the digital signal and a first communication interface (130; 252) adapted for transmitting the down converted digital signal via a communication link (e.g. wireless, optical or wire-bound).
摘要翻译： 本发明涉及一种核磁共振成像射频接收器（112; 216; 308; 404），所述接收器（112; 216; 308; 404）适于接收来自至少一个射频接收器线圈单元 106; 200; 202; 300; 400; 402），所述射频接收器（112; 216; 308; 404）包括：模拟数字转换器（118; 226），用于将所述模拟预放大磁共振信号转换成 数字信号，用于数字下变频数字信号的装置（120; 230）和适于经由通信链路（例如无线，光或有线）发送经下变频的数字信号的第一通信接口（130; 252）。
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公开(公告)号：US20100090699A1
公开(公告)日：2010-04-15
申请号：US12520163
申请日：2007-12-20
CPC分类号： G01R33/3664 , G01R33/288 , G01R33/3415 , G01R33/3621
摘要： A radio-frequency (RF) coil array for receiving magnetic resonance (MR) signals wherein the RF coil array (402) comprises at least one RF receive coil with an associated electronic circuit, a rechargeable electrical storage device arranged to supply electrical power to the associated electronic circuit, and a charging circuit arranged to charge the rechargeable electrical storage device, wherein the charging circuit includes a switching circuit (102SW1, 102SW2, 104SW1, 104SW2, 106SW1, 106SW2, 108SW1, 108SW2) configured to electrically isolate the charging circuit from the RF coil array at least when the RF receive coil is receiving MR signal. During a time period when the RF receive coil is not receiving MR signal and/or when another RF coil is not transmitting RF signals in the presence of the RF receive coil, the switching circuit switches the charging circuit to an ON state which enables the charging circuit to charge the rechargeable electrical storage device.
摘要翻译： 一种用于接收磁共振（MR）信号的射频（RF）线圈阵列，其中RF线圈阵列（402）包括具有相关联的电子电路的至少一个RF接收线圈，可充电电存储装置，其布置成向 以及充电电路，其被布置为对可再充电电存储装置充电，其中充电电路包括被配置为将充电电路与电池电隔离的开关电路（102SW1,102SW2,104SW1,10SSW2,106SW1,106SW2,108SW1,108SW2） RF线圈阵列至少当RF接收线圈正在接收MR信号时。 在RF接收线圈没有接收到MR信号的时间段期间和/或当RF接收线圈的另一个RF线圈不发射RF信号时，开关电路将充电电路切换到能够进行充电的ON状态 电路为可充电电力存储装置充电。
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4.发明申请公开(公告)号：US20080259897A1
公开(公告)日：2008-10-23
申请号：US12097554
申请日：2006-12-20
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Jeff Bennett , Marc Paul Saes , Lambertus De Vries , Johannes Hendrik Den Boef , Robert Paul Kleihorst , Dagnachew Birru
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Jeff Bennett , Marc Paul Saes , Lambertus De Vries , Johannes Hendrik Den Boef , Robert Paul Kleihorst , Dagnachew Birru
IPC分类号： H04J3/00
CPC分类号： G01R33/283 , G01R33/3692 , G01R33/56383
摘要： A method and an arrangement for uni- or bidirectional wireless communication of signals or data especially in a reflective environment like a MR imaging system, between at least one first transmitter and/or receiver unit (501, 601, 701; T/R1) and at least one second transmitter and/or receiver unit (801; T/R2) is disclosed. The reliability and availability of the communication link especially in a highly reflective environment is improved especially by using spread spectrum technology and ultra wide band carrier frequencies.
摘要翻译： 一种用于信号或数据的单向或双向无线通信的方法和装置，特别是在诸如MR成像系统的反射环境中，在至少一个第一发射器和/或接收器单元（501,601,701; T / R 1）之间， 并且公开了至少一个第二发射机和/或接收机单元（801; T / R 2）。 特别是在高反射环境中通信链路的可靠性和可用性得到了改进，特别是通过使用扩频技术和超宽带载波频率。
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公开(公告)号：US07777490B2
公开(公告)日：2010-08-17
申请号：US12089053
申请日：2006-10-10
IPC分类号： G01V3/00
CPC分类号： G01R33/54 , G01R33/3621 , G01R33/3692
摘要： A radio frequency antenna comprising a resonant pickup circuit (102) arranged to pick up a magnetic resonance signal, an analog-to-digital converter (105) arranged to convert the magnetic resonance signal to digital data, and a frequency converter arranged to convert a primary band of frequencies of the digital data. By upshifting the frequency of the transmitted bit-stream, it is possible to RF-trap the transmission channel (109) by simple high-pass filtering techniques. In case the transmitted bit pattern has frequency components that approach the resonance frequency, an encoding technique like Manchester encoding can be used to eliminate unwanted signals.
摘要翻译： 一种射频天线，包括布置成拾取磁共振信号的谐振拾取电路（102），被配置为将磁共振信号转换为数字数据的模数转换器（105），以及频率转换器， 数字数据的主频带。 通过升高发送的比特流的频率，可以通过简单的高通滤波技术对传输信道（109）进行RF捕获。 在发送的位模式具有接近谐振频率的频率分量的情况下，可以使用诸如曼彻斯特编码的编码技术来消除不需要的信号。
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公开(公告)号：US20090121717A1
公开(公告)日：2009-05-14
申请号：US12089053
申请日：2006-10-10
CPC分类号： G01R33/54 , G01R33/3621 , G01R33/3692
摘要： A radio frequency antenna comprising a resonant pickup circuit (102) arranged to pick up a magnetic resonance signal, an analog-to-digital converter (105) arranged to convert the magnetic resonance signal to digital data, and a frequency converter arranged to convert a primary band of frequencies of the digital data. By upshifting the frequency of the transmitted bit-stream, it is possible to RF-trap the transmission channel (109) by simple high-pass filtering techniques. In case the transmitted bit pattern has frequency components that approach the resonance frequency, an encoding technique like Manchester encoding can be used to eliminate unwanted signals.
摘要翻译： 一种射频天线，包括布置成拾取磁共振信号的谐振拾取电路（102），被配置为将磁共振信号转换为数字数据的模数转换器（105），以及频率转换器， 数字数据的主频带。 通过升高发送的比特流的频率，可以通过简单的高通滤波技术对传输信道（109）进行RF捕获。 在发送的位模式具有接近谐振频率的频率分量的情况下，可以使用诸如曼彻斯特编码的编码技术来消除不需要的信号。
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公开(公告)号：US08598874B2
公开(公告)日：2013-12-03
申请号：US12808409
申请日：2008-12-22
CPC分类号： G01R33/3692 , G01R33/3614
摘要： A magnetic resonance system includes a wireless local coil which functions as a transmit only or a transmit and receive coil. The local coil includes an RF coil with a plurality of coil elements. A corresponding number of transmit amplifiers apply RF signals to the RF coil elements to transmit an RF signal. A peak power supply provides electrical power to the transmit amplifiers to transmit relatively high power RF pulses. A trickle charging device recharges the peak power supply between RF pulses front a local coil power supply. A power transfer device wirelessly transfers power to a coil power supply recharging device which recharges the local coil power supply.
摘要翻译： 磁共振系统包括用作发射或无线发射和接收线圈的无线本地线圈。 本地线圈包括具有多个线圈元件的RF线圈。 相应数量的发射放大器将RF信号施加到RF线圈元件以发射RF信号。 峰值电源为发射放大器提供电力以传输较高功率的RF脉冲。 涓流充电装置在本地线圈电源之前的RF脉冲之间对峰值电源进行充电。 电力传输装置将电力无线地传送到为本地线圈电源充电的线圈电源充电装置。
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公开(公告)号：US20110103491A1
公开(公告)日：2011-05-05
申请号：US12994172
申请日：2009-05-28
CPC分类号： H04L1/0006 , G01R33/3621 , G01R33/3692 , G06F19/00 , G06F19/321
摘要： The present invention relates to a data rate controlling feedback loop (355, 360) that can evaluate an actual instantaneous available quality of service of a communication link (345) for transmitting data and control the data rate based on an evaluation result. Feedback control may both be local to a device for acquiring examination data such as e.g. a magnetic resonance imaging coil or over the communication link by reducing the data rate at least momentarily to fit the communication link's performance over time, enabling a graceful degradation of an image quality at lower data rates.
摘要翻译： 本发明涉及一种数据速率控制反馈回路（355,360），其可以评估用于发送数据的通信链路（345）的实际瞬时可用服务质量，并且基于评估结果来控制数据速率。 反馈控制可以都是用于获取检查数据的设备本地的，例如， 磁共振成像线圈或通过通信链路至少瞬间降低数据速率以适应通信链路的性能随时间变化，从而能够以较低的数据速率优化图像质量。
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公开(公告)号：US20100308826A1
公开(公告)日：2010-12-09
申请号：US12808409
申请日：2008-12-22
IPC分类号： G01R33/44
CPC分类号： G01R33/3692 , G01R33/3614
摘要： A magnetic resonance system (10) includes a wireless local coil (22) which functions as a transmit only or a transmit and receive coil. The local coil includes an RF coil (50) with a plurality of coil elements (501, 50a). A corresponding number of transmit amplifiers (581, 58a) apply RF signals to the RF coil elements to transmit an RF signal. A peak power supply (56) provides electrical power to the transmit amplifiers to transmit relatively high power RF pulses. A trickle charging device (66) recharges the peak power supply between RF pulses from a local coil power supply (60). A power transfer device (64) wirelessly transfers power to a coil power supply recharging device (62) which recharges the local coil power supply (60).
摘要翻译： 磁共振系统（10）包括无线本地线圈（22），其用作发射或发射和接收线圈。 本地线圈包括具有多个线圈元件（501,50a）的RF线圈（50）。 相应数量的发射放大器（581,58a）向RF线圈元件施加RF信号以发送RF信号。 峰值电源（56）向发射放大器提供电力以传输较高功率的RF脉冲。 涓流充电装置（66）对来自本地线圈电源（60）的RF脉冲之间的峰值电源进行充电。 电力传送装置（64）将功率无线地传送到对本地线圈电源（60）再充电的线圈电源充电装置（62）。
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10.发明授权MRI system comprising a scan room interface for A/D-conversion of MR signals between a receiver coil unit and a remote signal processing unit 有权MRI系统包括用于在接收器线圈单元和远程信号处理单元之间进行MR信号的A / D转换的扫描室接口公开(公告)号：US07746072B2
公开(公告)日：2010-06-29
申请号：US11909164
申请日：2006-03-20
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Marc Paul Saes , Johan Samuel Van Den Brink , Robert Paul Kleihorst , Paulus Cornelius Hendrikus Adrianus Haans
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Marc Paul Saes , Johan Samuel Van Den Brink , Robert Paul Kleihorst , Paulus Cornelius Hendrikus Adrianus Haans
IPC分类号： G01V3/00
CPC分类号： G01R33/3621 , G01R33/3415 , G01R33/3692
摘要： The present invention relates to a magnetic resonance imaging system, to a magnetic resonance imaging method for operating a magnetic resonance imaging system and to a computer program for operating a magnetic resonance imaging system. In order to considerably reduce the number of cabling in a magnetic resonance imaging system a magnetic resonance imaging system (1) is suggested, the system comprising: an examination zone (5) arranged to receive a body for examination; magnetic field generating means (9, 10, 24) for generating a magnetic field in the examination zone (5); a receiving unit (14) located in the examination zone (5) or in the vicinity of the examination zone (5); an interface unit (17) located in the examination zone (5) or in the vicinity of the examination zone (5), and arranged separately from the receiving unit (14); and a signal processing unit (21) disposed at a location (2) remote from the receiving unit (14) and the interface unit (17); wherein the receiving unit (14) comprising a receiver (15) adapted to receive a spin resonance signal generated in the examination zone (5), and a transmitter (16) adapted to transmit the spin resonance signal to the interface unit (17); and wherein the interface unit (17) comprises a receiver (20) for receiving the spin resonance signals, an analog to digital converter (19) adapted to generate a digital signal in response to the received spin resonance signal, and a transmitter (20) for transmitting the digitized signal to the signal processing unit (21).
摘要翻译： 磁共振成像系统技术领域本发明涉及一种用于操作磁共振成像系统的磁共振成像方法和用于操作磁共振成像系统的计算机程序的磁共振成像系统。 为了大大减少磁共振成像系统中的电缆数量，建议使用磁共振成像系统（1），该系统包括：检查区域（5），布置成接收检查体; 用于在检查区（5）中产生磁场的磁场产生装置（9,10,24）; 位于检查区（5）或检查区（5）附近的接收单元（14）; 位于所述检查区域（5）中或所述检查区域（5）附近的接口单元（17），并且与所述接收单元（14）分开布置; 以及设置在远离所述接收单元（14）和所述接口单元（17）的位置（2）处的信号处理单元（21）。 其中所述接收单元（14）包括适于接收在所述检查区（5）中产生的自旋共振信号的接收器（15）和适于将所述自旋共振信号传输到所述接口单元（17）的发射器（16）。 并且其中所述接口单元（17）包括用于接收所述自旋谐振信号的接收器（20），适于响应于所接收的自旋谐振信号产生数字信号的模数转换器（19），以及发射器（20） 用于将数字化信号发送到信号处理单元（21）。
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