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1. 发明授权

US08260836B2 Method and device for generating a filter coefficient in real time 有权
标题翻译：实时生成滤波系数的方法和装置
公开(公告)号：US08260836B2
公开(公告)日：2012-09-04
申请号：US11927230
申请日：2007-10-29
申请人： Xingjun Pi , Xiaogang Kang , Yong Jiang
发明人： Xingjun Pi , Xiaogang Kang , Yong Jiang
IPC分类号： G06F17/10
CPC分类号： H03H17/0294
摘要： The present invention provides a method and device for generating a filter coefficient in real time. The method includes: looking up a converted window function value in a converted window function table based on a current coefficient index; generating a current cut-off angular frequency; generating a look-up table address based on the current coefficient index, the filter order and the current cut-off angular frequency and looking up a sine value in a sine table based on the look-up table address; and multiplying the converted window function value by the sine value to obtain the filter coefficient. The device includes a first memory, a second memory, a look-up table address generation module and a first multiplier. The present invention is easily implemented with low hardware resource consumption and high flexibility, and is particularly applicable for the hardware implementation of high-order finite impulse response filters.
摘要翻译：本发明提供一种用于实时生成滤波系数的方法和装置。该方法包括：基于当前系数索引，在转换后的窗函数表中查找转换的窗口函数值; 产生电流截止角频率; 基于当前系数索引，滤波器顺序和当前截止角频率并基于查找表地址在正弦表中查找正弦值来产生查找表地址; 并将转换的窗口函数值乘以正弦值以获得滤波器系数。该设备包括第一存储器，第二存储器，查找表地址生成模块和第一乘法器。本发明容易实现，硬件资源消耗低，灵活性高，特别适用于高阶有限脉冲响应滤波器的硬件实现。

2. 发明授权

US09124244B2 Method and device for generating a filter coefficient in real time 有权
标题翻译：实时生成滤波系数的方法和装置
公开(公告)号：US09124244B2
公开(公告)日：2015-09-01
申请号：US13564982
申请日：2012-08-02
申请人： Xingjun Pi , Xiaogang Kang , Yong Jiang
发明人： Xingjun Pi , Xiaogang Kang , Yong Jiang
IPC分类号： H03H17/02
CPC分类号： H03H17/0294
摘要： The present invention provides a method and device for generating a filter coefficient in real time. The method includes: looking up a converted window function value in a converted window function table based on a current coefficient index; generating a current cut-off angular frequency; generating a look-up table address based on the current coefficient index, the filter order and the current cut-off angular frequency and looking up a sine value in a sine table based on the look-up table address; and multiplying the converted window function value by the sine value to obtain the filter coefficient. The device includes a first memory, a second memory, a look-up table address generation module and a first multiplier. The present invention is easily implemented with low hardware resource consumption and high flexibility, and is particularly applicable for the hardware implementation of high-order finite impulse response filters.
摘要翻译：本发明提供一种用于实时生成滤波系数的方法和装置。该方法包括：基于当前系数索引，在转换后的窗函数表中查找转换的窗口函数值; 产生电流截止角频率; 基于当前系数索引，滤波器顺序和当前截止角频率并基于查找表地址在正弦表中查找正弦值来产生查找表地址; 并将转换的窗口函数值乘以正弦值以获得滤波器系数。该设备包括第一存储器，第二存储器，查找表地址生成模块和第一乘法器。本发明容易实现，硬件资源消耗低，灵活性高，特别适用于高阶有限脉冲响应滤波器的硬件实现。

3. 发明申请

US20080126459A1 METHOD AND DEVICE FOR GENERATING A FILTER COEFFICIENT IN REAL TIME 有权
标题翻译：实时产生滤波器系数的方法和装置
公开(公告)号：US20080126459A1
公开(公告)日：2008-05-29
申请号：US11927230
申请日：2007-10-29
申请人： Xingjun Pi , Xiaogang Kang , Yong Jiang
发明人： Xingjun Pi , Xiaogang Kang , Yong Jiang
IPC分类号： G06F7/548
CPC分类号： H03H17/0294
摘要： The present invention provides a method and device for generating a filter coefficient in real time. The method includes: looking up a converted window function value in a converted window function table based on a current coefficient index; generating a current cut-off angular frequency; generating a look-up table address based on the current coefficient index, the filter order and the current cut-off angular frequency and looking up a sine value in a sine table based on the look-up table address; and multiplying the converted window function value by the sine value to obtain the filter coefficient. The device includes a first memory, a second memory, a look-up table address generation module and a first multiplier. The present invention is easily implemented with low hardware resource consumption and high flexibility, and is particularly applicable for the hardware implementation of high-order finite impulse response filters.
摘要翻译：本发明提供一种用于实时生成滤波系数的方法和装置。该方法包括：基于当前系数索引，在转换后的窗函数表中查找转换的窗口函数值; 产生电流截止角频率; 基于当前系数索引，滤波器顺序和当前截止角频率并基于查找表地址在正弦表中查找正弦值来产生查找表地址; 并将转换的窗口函数值乘以正弦值以获得滤波器系数。该设备包括第一存储器，第二存储器，查找表地址生成模块和第一乘法器。本发明容易实现，硬件资源消耗低，灵活性高，特别适用于高阶有限脉冲响应滤波器的硬件实现。

4. 发明申请

US20120323983A1 METHOD AND DEVICE FOR GENERATING A FILTER COEFFICIENT IN REAL TIME 有权
标题翻译：实时产生滤波器系数的方法和装置
公开(公告)号：US20120323983A1
公开(公告)日：2012-12-20
申请号：US13564982
申请日：2012-08-02
申请人： Xingjun Pi , Xiaogang Kang , Yong Jiang
发明人： Xingjun Pi , Xiaogang Kang , Yong Jiang
IPC分类号： G06F17/10
CPC分类号： H03H17/0294
摘要： The present invention provides a method and device for generating a filter coefficient in real time. The method includes: looking up a converted window function value in a converted window function table based on a current coefficient index; generating a current cut-off angular frequency; generating a look-up table address based on the current coefficient index, the filter order and the current cut-off angular frequency and looking up a sine value in a sine table based on the look-up table address; and multiplying the converted window function value by the sine value to obtain the filter coefficient. The device includes a first memory, a second memory, a look-up table address generation module and a first multiplier. The present invention is easily implemented with low hardware resource consumption and high flexibility, and is particularly applicable for the hardware implementation of high-order finite impulse response filters.
摘要翻译：本发明提供一种用于实时生成滤波系数的方法和装置。该方法包括：基于当前系数索引，在转换后的窗函数表中查找转换的窗口函数值; 产生电流截止角频率; 基于当前系数索引，滤波器顺序和当前截止角频率并基于查找表地址在正弦表中查找正弦值来产生查找表地址; 并将转换的窗口函数值乘以正弦值以获得滤波器系数。该设备包括第一存储器，第二存储器，查找表地址生成模块和第一乘法器。本发明容易实现，硬件资源消耗低，灵活性高，特别适用于高阶有限脉冲响应滤波器的硬件实现。

5. 发明授权

US07706476B2 Real-time digital quadrature demodulation method and device for ultrasonic imaging system 有权
标题翻译：超声波成像系统的实时数字正交解调方法及装置
公开(公告)号：US07706476B2
公开(公告)日：2010-04-27
申请号：US11617959
申请日：2006-12-29
申请人： Yong Jiang , Qinjun Hu , Xingjun Pi
发明人： Yong Jiang , Qinjun Hu , Xingjun Pi
IPC分类号： H04L27/00 , G06F17/10
CPC分类号： G01S15/8979 , G01S7/52028 , H03D3/007
摘要： A real-time digital quadrature demodulation method and device for the ultrasonic imaging system are disclosed in this invention. In addition to a multiplying step and a filtering step, the method further comprises a sine and cosine table generating step for generating the sine and cosine table in real time, and a filter parameter generating step for generating corresponding filter parameters in real time to filter signals from the multipliers. The device comprises two multipliers, two filters, a sine and cosine table generating module, a filter parameter generating module, and two parameter memories. The real-time digital quadrature demodulation method and device for the ultrasonic imaging system according to the invention are capable of effectively saving the storage resource, and are easily controllable.
摘要翻译：在本发明中公开了一种用于超声成像系统的实时数字正交解调方法和装置。除了乘法步骤和滤波步骤之外，该方法还包括实时生成正弦和余弦表的正弦和余弦表生成步骤，以及实时产生相应的滤波器参数以滤波信号的滤波器参数产生步骤来自乘数。该装置包括两个乘法器，两个滤波器，正弦和余弦表生成模块，滤波器参数产生模块和两个参数存储器。根据本发明的用于超声成像系统的实时数字正交解调方法和装置能够有效地节省存储资源，并且易于控制。

6. 发明授权

US08179997B2 Real-time digital quadrature demodulation method and device for ultrasonic imaging system 有权
标题翻译：超声波成像系统的实时数字正交解调方法及装置
公开(公告)号：US08179997B2
公开(公告)日：2012-05-15
申请号：US12767642
申请日：2010-04-26
申请人： Yong Jiang , Qinjun Hu , Xingjun Pi
发明人： Yong Jiang , Qinjun Hu , Xingjun Pi
IPC分类号： H04L27/00 , G06F17/10
CPC分类号： G01S15/8979 , G01S7/52028 , H03D3/007
摘要： A real-time digital quadrature demodulation method and device for the ultrasonic imaging system are disclosed in this invention. In addition to a multiplying step and a filtering step, the method further comprises a sine and cosine table generating step for generating the sine and cosine table in real time, and a filter parameter generating step for generating corresponding filter parameters in real time to filter signals from the multipliers. The device comprises two multipliers, two filters, a sine and cosine table generating module, a filter parameter generating module, and two parameter memories. The real-time digital quadrature demodulation method and device for the ultrasonic imaging system according to the invention are capable of effectively saving the storage resource, and are easily controllable.
摘要翻译：在本发明中公开了一种用于超声成像系统的实时数字正交解调方法和装置。除了乘法步骤和滤波步骤之外，该方法还包括实时生成正弦和余弦表的正弦和余弦表生成步骤，以及实时产生相应的滤波器参数以滤波信号的滤波器参数产生步骤来自乘数。该装置包括两个乘法器，两个滤波器，正弦和余弦表生成模块，滤波器参数产生模块和两个参数存储器。根据本发明的用于超声成像系统的实时数字正交解调方法和装置能够有效地节省存储资源，并且易于控制。

7. 发明申请

US20080126460A1 REAL-TIME DIGITAL QUADRATURE DEMODULATION METHOD AND DEVICE FOR ULTRASONIC IMAGING SYSTEM 有权
标题翻译：实时数字解码方法和超声成像系统的设备
公开(公告)号：US20080126460A1
公开(公告)日：2008-05-29
申请号：US11617959
申请日：2006-12-29
申请人： Yong Jiang , Qinjun Hu , Xingjun Pi
发明人： Yong Jiang , Qinjun Hu , Xingjun Pi
IPC分类号： G06F17/10
CPC分类号： G01S15/8979 , G01S7/52028 , H03D3/007
摘要： A real-time digital quadrature demodulation method and device for the ultrasonic imaging system are disclosed in this invention. In addition to a multiplying step and a filtering step, the method further comprises a sine and cosine table generating step for generating the sine and cosine table in real time, and a filter parameter generating step for generating corresponding filter parameters in real time to filter signals from the multipliers. The device comprises two multipliers, two filters, a sine and cosine table generating module, a filter parameter generating module, and two parameter memories. The real-time digital quadrature demodulation method and device for the ultrasonic imaging system according to the invention are capable of effectively saving the storage resource, and are easily controllable.
摘要翻译：在本发明中公开了一种用于超声成像系统的实时数字正交解调方法和装置。除了乘法步骤和滤波步骤之外，该方法还包括实时生成正弦和余弦表的正弦和余弦表生成步骤，以及实时产生相应的滤波器参数以滤波信号的滤波器参数产生步骤来自乘数。该装置包括两个乘法器，两个滤波器，正弦和余弦表生成模块，滤波器参数产生模块和两个参数存储器。根据本发明的用于超声成像系统的实时数字正交解调方法和装置能够有效地节省存储资源，并且易于控制。

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