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1. 发明专利

JP2011206287A Signal processing apparatus and magnetic resonance imaging apparatus 有权
标题翻译：信号处理装置和磁共振成像装置
公开(公告)号：JP2011206287A
公开(公告)日：2011-10-20
申请号：JP2010077227
申请日：2010-03-30
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , G01R33/36
摘要： PROBLEM TO BE SOLVED: To reduce coherent noise by removing DC offsets by a digital filter.SOLUTION: The signal processing apparatus includes the digital filter 21 disposed on a prior stage to a detection circuit 22. The digital filter 21 is a high-pass filter which transmits components in a frequency band Fc±ΔF included in digital signals SD, but which removes DC offset components. As the digital filter 21 removes DC offsets before the DC offsets are input in the detection circuit 22, generation of noise N of a frequency Fc can be suppressed, and as a result, the coherent noise can be reduced.
摘要翻译：要解决的问题：通过去除数字滤波器的DC偏移来减少相干噪声。解决方案：信号处理装置包括设置在检测电路22的前一级的数字滤波器21.数字滤波器21是高通滤波器其发送包括在数字信号SD中的频带Fc±ΔF中的分量，但是其去除DC偏移分量。由于数字滤波器21在检测电路22中输入直流偏移之前去除直流偏移，所以可以抑制频率Fc的噪声N的产生，结果可以降低相干噪声。

2. 发明专利

JP2009261700A Mri system 审中-公开
标题翻译： MRI系统
公开(公告)号：JP2009261700A
公开(公告)日：2009-11-12
申请号：JP2008115885
申请日：2008-04-25
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , G01R33/36
摘要： PROBLEM TO BE SOLVED: To provide an MRI system, from which quality images can be obtained. SOLUTION: A digital signal processing means 235 is provided at a signal processor arranged outside a scan room 10, while an analogue signal processing means 131 is provided at an MRI apparatus arranged within the scan room 10. Analogue electric signals A1-An from a receiving coil 12 are subjected to an analogue signal treatment prior to their transmission to the signal processor. Accordingly, noises from the digital signal processing means 235 become difficult to be mixed with the analogue signal processed by the analogue signal processing means 131, and quality MR images can be obtained. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供可以从其获得优质图像的MRI系统。解决方案：在布置在扫描室10外部的信号处理器处提供数字信号处理装置235，同时在布置在扫描室10内的MRI装置处提供模拟信号处理装置131.模拟电信号A1-An 来自接收线圈12的信号在传送到信号处理器之前经受模拟信号处理。因此，数字信号处理装置235的噪声变得难以与由模拟信号处理装置131处理的模拟信号混合，并且可以获得质量MR图像。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2006136480A Apparatus, method and program for digital filter processing 有权
标题翻译：数字滤波处理的装置，方法和程序
公开(公告)号：JP2006136480A
公开(公告)日：2006-06-01
申请号：JP2004328107
申请日：2004-11-11
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , H03H17/02 , H03H17/06
摘要： PROBLEM TO BE SOLVED: To suppress the effect of noise by tracking back to a time before the occurrence of the noise without adding a component. SOLUTION: Data rewrite parts 2451a-0 to 2451a-N rewrite digital data sequentially and temporarily stored in shift registers 2451-0 to 2451-N into predetermined data, and a digital filter control part 247, when detecting noise of a predetermined threshold or more, rewrites the digital data sequentially and temporarily stored in the shift registers 2451-0 to 2451-N and being within a range of being affected by the influence of the detected noise and controls to execute the filter computing. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过在没有添加分量的情况下跟踪噪声发生之前的时间来抑制噪声的影响。解决方案：数据重写部分2451a-0至2451a-N将数字数据顺序地和暂时地存储在移位寄存器2451-0至2451-N中的数字数据转换为预定数据，数字滤波器控制部分247在检测预定的阈值以上的数字数据顺序地和暂时地存储在移位寄存器2451-0至2451-N中并且处于受检测到的噪声的影响的范围内，并进行控制以执行滤波计算。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2012176044A Signal processor and magnetic resonance imaging apparatus 有权
标题翻译：信号处理器和磁共振成像装置
公开(公告)号：JP2012176044A
公开(公告)日：2012-09-13
申请号：JP2011039655
申请日：2011-02-25
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , G01R33/54
摘要： PROBLEM TO BE SOLVED: To reduce coherent noise.SOLUTION: In a period P where analog signals SA are input to a signal processor 100A, digital signals SD are merely accumulated in a FIFO memory 55 without performing detection processing. Meanwhile, in a period Q where analog signals SA are not input to the signal processor 100A, a detection circuit 53 reads the digital signals SD accumulated in the FIFO memory 55 in the period P, and performs detection, or performs detection at a detection speed different from the center frequency Fc of the analog signals SA.
摘要翻译：要解决的问题：减少相干噪声。解决方案：在将模拟信号SA输入到信号处理器100A的时段P中，数字信号SD仅被累积在FIFO存储器55中，而不执行检测处理。同时，在没有向信号处理器100A输入模拟信号SA的期间Q中，检测电路53读取在时段P中累积在FIFO存储器55中的数字信号SD，进行检测，或者以检测速度进行检测与模拟信号SA的中心频率Fc不同。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2005296459A Receiver module, multichannel receiver and mri device 有权
标题翻译：接收器模块，多通道接收器和MRI设备
公开(公告)号：JP2005296459A
公开(公告)日：2005-10-27
申请号：JP2004119335
申请日：2004-04-14
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： G01R33/36 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a receiver module capable of easily coping with an increase in the input signal number in the receiver module used for forming a plurality of input signals into one composite signal.
SOLUTION: An adder 1 for adding and outputting a first signal S1 inputted from an external part and an inside signal Q1 generated in an internal part as an output signal B1, a multiplier 2 for multiplying a second signal S2 inputted from the external part and an input reference signal Sr inputted from the external part, an amplifier 3 for outputting the inside signal Q1 by doubly amplifying amplitude of output of the multiplier 2, and a frequency divider 4 for outputting an output reference signal Sr-1 by dividing a frequency of the input reference signal Sr by 1/2, are formed as one module. The receiver module is joined in a plurality in series so that an output signal of the rear stage is set as the first signal of the front stage, and the output reference signal of the front stage is set as the input reference signal of the rear stage, to easily cope with an increase in the input signal number.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够容易地应对用于形成多个输入信号的接收机模块中的输入信号数增加到一个复合信号中的接收机模块。解决方案：用于将从外部输入的第一信号S1和在内部产生的内部信号Q1作为输出信号B1相加和输出的加法器1，用于将从外部输入的第二信号S2相乘的乘法器2 部分和从外部输入的输入参考信号Sr，放大器3，用于通过双倍放大乘法器2的输出的幅度来输出内部信号Q1;以及分频器4，用于通过将输出参考信号Sr-1除以输入基准信号Sr的频率为1/2，形成为一个模块。接收器模块以多个串联的方式连接，使得后级的输出信号被设置为前级的第一信号，并且将前级的输出参考信号设置为后级的输入参考信号，以便容易地应对输入信号数量的增加。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005131102A Orthogonal detection method and apparatus and mri unit 有权
标题翻译：正交检测方法和装置和MRI单元
公开(公告)号：JP2005131102A
公开(公告)日：2005-05-26
申请号：JP2003370503
申请日：2003-10-30
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , G01R33/36
CPC分类号： G01R33/3621
摘要： PROBLEM TO BE SOLVED: To provide an orthogonal detection method and apparatus which eliminate the generation of the undesired frequency components and an MRI unit equipped with the same.
SOLUTION: An analog input signal is converted to a digital signal f1(t), which f1(t) is delayed by a sampling time τto form a signal f2(t). The reference frequency is represented by ω0 and I and Q components in the orthogonal detection are obtained by the following formula: The signal processing based on the formula is carried out with a circuit comprising delay means (402-406), multiplication means (502-512), and subtraction means (602-604).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种消除不期望的频率分量的产生的正交检测方法和装置以及配备该正交检测方法和装置的MRI单元。解决方案：将模拟输入信号转换为数字信号f1（t），其中f1（t）被延迟采样时间τ以形成信号f2（t）。参考频率由ω0表示，正交检测中的I和Q分量通过下式获得：基于公式的信号处理由包括延迟装置（402-406），乘法装置（502- 512）和减法装置（602-604）。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2009238228A Method, system, program for installation simulation of medical image diagnostic device, and storage medium 审中-公开
标题翻译：方法，系统，医学图像诊断装置的安装模拟程序和存储介质
公开(公告)号：JP2009238228A
公开(公告)日：2009-10-15
申请号：JP2009101486
申请日：2009-04-18
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO , TSUCHIYA TOMOTOSHI
IPC分类号： G06F17/50 , G06Q30/02 , G06Q30/06 , G06Q50/00 , G06Q50/10 , G06Q50/22
摘要： PROBLEM TO BE SOLVED: To automatically display an installation image of a medical image diagnostic device. SOLUTION: The medical image diagnostic device is at least one of an MRI device, an X-ray CT device, an ultrasonograph, a PET device, X-ray equipment, and a CR device. A customer side terminal transmits a specified installation parameter to a host server device via a network after size of a photography room where the medical image diagnostic device is installed, a position of an entrance of the photography room, and a model of the medical image diagnostic device to be installed are specified using an installation parameter display area on a picture by an operator, the host server device (or an arithmetic unit connected to it) generates an installation image when the medical image diagnostic device is virtually installed in the photography room according to the specified installation parameter, transmits the generated installation image to the customer side terminal via the network, and displays the installation image in an installation image display area on the picture of the customer side terminal. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：自动显示医用图像诊断装置的安装图像。医疗图像诊断装置是MRI装置，X射线CT装置，超声波诊断装置，PET装置，X射线装置和CR装置中的至少一个。客户侧终端在安装医学图像诊断装置的摄影室的尺寸，摄影室的入口位置和医学图像诊断模型之后经由网络将指定的安装参数发送到主机服务器设备使用操作者在画面上使用安装参数显示区域指定要安装的设备，当医疗图像诊断设备虚拟地安装在摄影室中时，主机服务器设备（或连接到其的运算单元）生成安装映像，根据根据指定的安装参数，通过网络将生成的安装映像发送到客户端终端，并将安装映像显示在客户端终端的图片上的安装映像显示区域。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009165538A Magnetic resonance imaging apparatus and operating console 有权
标题翻译：磁共振成像装置和操作控制台
公开(公告)号：JP2009165538A
公开(公告)日：2009-07-30
申请号：JP2008004456
申请日：2008-01-11
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To detect a malfunction of a scan control part which generates artifacts occurring in a reconstruction image without performing magnetic resonance imaging actually.
SOLUTION: Test signals oscillated by a radio frequency or RF oscillator 221 are directly inputted into a data acquisition part 24 through a signal transmission part 222. Then, the test signals inputted into the data acquisition part 24 are outputted to an image reconstruction part 33 from the data acquisition part 24, and a test image is generated by performing image reconstruction. The generated test image is displayed on a display screen in a display part 34, and the failure of the scan control part 3 is determined by the generated test image.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了检测在实际上不进行磁共振成像的在重建图像中产生人造物的扫描控制部分的故障。解决方案：通过射频或RF振荡器221振荡的测试信号通过信号发送部分222直接输入到数据获取部分24.然后，输入到数据获取部分24的测试信号被输出到图像重构来自数据获取部分24的部分33，并且通过执行图像重建来产生测试图像。生成的测试图像显示在显示部分34的显示屏幕上，并且通过所生成的测试图像确定扫描控制部分3的故障。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008264101A Magnetic resonance imaging apparatus and rf-pulse generating circuit 有权
标题翻译：磁共振成像装置和RF脉冲发生电路
公开(公告)号：JP2008264101A
公开(公告)日：2008-11-06
申请号：JP2007109062
申请日：2007-04-18
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , G01R33/36
CPC分类号： G01R33/3607 , G01R33/3621
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus which filters noises that may superimpose on a magnetic resonance signal out of a digital RF-pulse signal before the digital RF-pulse signal is converted into an analog RF-pulse signal by a D/A converter.
SOLUTION: A direct digital synthesizer DDS 31 generates a digital carrier signal. A digital mixer 33 modulates the digital carrier signal using a digital envelope signal to convert the digital carrier signal into a digital RF-pulse signal of a predetermined band width. The digital RF-pulse signal is then transmitted to the D/A converter 40 via a digital bus A. An inverting section 34 generates a digital inverted carry signal which is in a complementary relation to the digital carry signal 2. The digital inverted carry signal is transmitted via a digital bus B to a magnetic resonance signal receiving circuit 15 for demodulation. Noises C generated by the digital carry signal passing through the digital bus A and noises D generated by the digital inverted carry signal passing through the digital bus B cancels each other.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁共振成像装置，其在将数字RF脉冲信号转换成模拟RF脉冲信号之前，将数字RF脉冲信号中的可能叠加在磁共振信号上的噪声进行滤波通过D / A转换器。解决方案：直接数字合成器DDS 31产生数字载波信号。数字混合器33使用数字包络信号来调制数字载波信号，以将数字载波信号转换为预定带宽的数字RF脉冲信号。然后，数字RF脉冲信号经由数字总线A发送到D / A转换器40.反相部分34产生与数字进位信号2互补关系的数字反相进位信号。数字反相进位信号经由数字总线B发送到磁共振信号接收电路15以进行解调。由通过数字总线A的数字进位信号产生的噪声C和通过数字总线B的数字反转进位信号产生的噪声D相互抵消。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2011072389A Power source device and magnetic resonance imaging apparatus 有权
标题翻译：电源设备和磁共振成像设备
公开(公告)号：JP2011072389A
公开(公告)日：2011-04-14
申请号：JP2009224858
申请日：2009-09-29
申请人： Ge Medical Systems Global Technology Co Llc , ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
发明人： YOSHIZAWA FUMIHIRO
IPC分类号： A61B5/055 , G01R33/28
摘要： PROBLEM TO BE SOLVED: To provide a power source device which can reduce the number of remote sensing signal lines and a magnetic resonance imaging apparatus. SOLUTION: A control circuit 11 obtains a voltage in the input terminal 22 of a load 2 in accordance with a voltage Vi1 in a first input terminal detected by a power module PM1, the output voltage Vo1 of the power module PM1, a current I1 flowing through the output signal line 31a of a cable 3, the output voltage Vo2 of a power module PM2, a current I2 supplied to the signal line 32 of the cable 3 and a ratio of the resistance of the output signal line 31a to the resistance of the output signal line 32. The second power module PM2 adjusts the output voltage Vo2 in accordance with the voltage obtained by the control circuit 11. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以减少遥感信号线的数量和磁共振成像装置的电源装置。解决方案：控制电路11根据由功率模块PM1检测的第一输入端子中的电压Vi1，功率模块PM1的输出电压Vo1，电压模块PM1的输出电压Vo1，获得负载2的输入端子22中的电压电流I1流过电缆3的输出信号线31a，电源模块PM2的输出电压Vo2，提供给电缆3的信号线32的电流I2，输出信号线31a的电阻与输出信号线32的电阻。第二功率模块PM2根据由控制电路11获得的电压来调节输出电压Vo2。版权所有：（C）2011，JPO＆INPIT

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