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1.发明授权公开(公告)号：US06878113B2
公开(公告)日：2005-04-12
申请号：US10297251
申请日：2001-07-02
CPC分类号： G01S15/895 , G01S7/52026
摘要： An ultrasonic diagnostic apparatus acquires images different in a frequency. The invention is composed of a transducer including plural elements for sending an ultrasonic wave and receiving the reflected ultrasonic wave, analog to digital converters that digitize plural received signals, first mixers that respectively multiply a signal from the converter and a first digital reference signal, first filters that respectively extract a signal having a predetermined center frequency from a signal from each first mixer, digital delay units that respectively delay a signal from each first filter, an adder that adds plural signals from the digital delay units, and a second mixer that multiplies a signal from the adder and a second digital reference signal. An envelope detector detects a signal from the second mixer, and a scan converter converts a signal from the detector to a picture signal for display, so the pass band of the filter is not required to be changed.
摘要翻译： 超声波诊断装置获取频率不同的图像。 本发明由包括用于发送超声波和接收反射超声波的多个元件的传感器，数字化多个接收信号的模数转换器，第一混频器，分别乘以来自转换器的信号和第一数字参考信号， 分别从每个第一混合器的信号提取具有预定中心频率的信号的滤波器，分别延迟来自每个第一滤波器的信号的数字延迟单元，从数字延迟单元加上多个信号的加法器，以及将数字延迟单元相乘的第二混频器 来自加法器的信号和第二数字参考信号。 包络检测器检测来自第二混频器的信号，并且扫描转换器将来自检测器的信号转换成用于显示的图像信号，因此滤波器的通带不需要改变。
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公开(公告)号：US06958041B2
公开(公告)日：2005-10-25
申请号：US10221132
申请日：2001-03-12
申请人： Hirotaka Baba , Ryuichi Shinomura , Yutaka Sato , Yuichi Miwa
发明人： Hirotaka Baba , Ryuichi Shinomura , Yutaka Sato , Yuichi Miwa
CPC分类号： A61B8/00 , G01S7/52049 , G01S7/52071 , G01S7/52074
摘要： An ultrasonic imaging arrangement performs tentative scanning of ultrasound to the inside of a living body with delay time corresponding to average sonic velocity, calculates delay time error in a delay time error detecting circuit by using received signals from each channel to which delay control has been performed in a digital delay circuit, compares in a delay time comparing unit the calculated data with a plurality of delay time error data corresponding to various sonic velocities using sound velocity as the parameter stored before hand in a sound velocity-derived delay time error storing unit, selects among those sonic velocities the one matching the delay time error data with a sonic velocity selecting unit, and calculates the sonic velocity within the living body. The calculated sonic velocity is fed back to CPU, and the delay data on the delay applied in the ultrasonic scanning is provided to a delay circuit.
摘要翻译： 一种超声波成像装置，对具有对应于平均声速的延迟时间，对生物体的内部进行超声波的暂时扫描，通过使用已经进行了延迟控制的各个通道的接收信号来计算延迟时间误差检测电路的延迟时间误差 在数字延迟电路中，在延迟时间比较单元中，使用声速作为在速度导出的延迟时间误差存储单元中存储的参数之前的参数，将计算出的数据与对应于各种声速的多个延迟时间误差数据进行比较， 在这些声速之中选择与声速选择单元匹配延迟时间误差数据的声速，并计算生物体内的声速。 将计算出的声速反馈给CPU，并将超声波扫描中所用延迟的延迟数据提供给延迟电路。
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公开(公告)号：US06620102B2
公开(公告)日：2003-09-16
申请号：US10166106
申请日：2002-06-11
申请人： Yuichi Miwa , Ryuichi Shinomura , Hirotaka Baba , Satoshi Tamano
发明人： Yuichi Miwa , Ryuichi Shinomura , Hirotaka Baba , Satoshi Tamano
IPC分类号： A61B800
CPC分类号： A61B8/08 , G01S7/52049
摘要： An ultrasonic diagnostic apparatus in which the distortion of the received wave signal due to the ununiformity of the interior of an human body can be reduced accurately with a small circuit scale and an ultrasonic image of high resolution can be produced. The apparatus comprises a probe including an arrangement of elements for transmitting and receiving ultrasonic pulses to and from the interior of a subject, delay means for delaying the wave signal received from each element of the probe, and a plurality of adder means connected in series to the output of the delay means for adding the output signal of the preceding stages thereby to form an ultrasonic beam. The apparatus further comprises correlation means for calculating the correlation of two or more output signals of any of the adder means, and delay correcting means for estimating as many delay correction amounts as the input signals to the delay means from the time difference between adjacent signals generated from the correlation means thereby to correct the delay time of the received wave signal.
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公开(公告)号：US06423005B1
公开(公告)日：2002-07-23
申请号：US09762954
申请日：2001-02-15
申请人： Yuichi Miwa , Ryuichi Shinomura , Hirotaka Baba , Satoshi Tamano
发明人： Yuichi Miwa , Ryuichi Shinomura , Hirotaka Baba , Satoshi Tamano
IPC分类号： A61B800
CPC分类号： A61B8/08 , G01S7/52049
摘要： An ultrasonic diagnostic apparatus in which the distortion of the received wave signal due to the ununiformity of the interior of an human body can be reduced accurately with a small circuit scale and an ultrasonic image of high resolution can be produced. The apparatus comprises a probe including an arrangement of elements for transmitting and receiving ultrasonic pulses to and from the interior of a subject, delay means for delaying the wave signal received from each element of the probe, and a plurality of adder means connected in series to the output of the delay means for adding the output signal of the preceding stages thereby to form an ultrasonic beam. The apparatus further comprises correlation means for calculating the correlation of two or more output signals of any of the adder means, and delay correcting means for estimating as many delay correction amounts as the input signals to the delay means from the time difference between adjacent signals generated from the correlation means thereby to correct the delay time of the received wave signal.
摘要翻译： 一种超声波诊断装置，其能够以小的电路规模精确地降低由于人体内部的不均匀性引起的接收波信号的失真，并且能够产生高分辨率的超声波图像。 该装置包括探针，其包括用于向和从对象内部发送和接收超声波脉冲的元件的布置，用于延迟从探头的每个元件接收的波信号的延迟装置，以及串联连接到 延迟装置的输出用于相加前一级的输出信号，从而形成超声波束。 该装置还包括相关装置，用于计算任何加法器装置和延迟校正装置的两个或多个输出信号的相关性，用于从产生的相邻信号之间的时间差估计与延迟装置的输入信号相同的延迟校正量 从而从相关装置校正接收的波信号的延迟时间。
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公开(公告)号：US20050075570A1
公开(公告)日：2005-04-07
申请号：US10169979
申请日：2001-01-12
申请人： Ryuichi Shinomura , Yuichi Miwa , Hirotaka Baba
发明人： Ryuichi Shinomura , Yuichi Miwa , Hirotaka Baba
CPC分类号： G01S15/8925 , A61B8/00 , A61B8/4494 , B06B1/0625 , G01S7/52046 , G01S7/52049 , G01S15/8922 , G01S15/8927 , G10K11/346
摘要： An ultrasonic diagnostic apparatus transmits an ultrasonic beam into an object to be examined using a multi-ring arrangement formed with transducer elements arrayed two-dimensionally in concentric rings and receives an echo so as to create a tomogram or a three-dimensional image of the object. To correct for focusing error due to the difference in length of ultrasound propagating paths, the ultrasonic diagnostic apparatus groups the transducer elements so as to form a multi-ring arrangement, transmits/receives ultrasonic beams with a delay to each ring of the multi-ring arrangement and scans the ultrasonic beam so as to create an ultrasonic image, measures delay error due to presence of a sound speed non-uniformity portion of the object and changes either the coupling of the multi-ring or the delay time based on the measurement error.
摘要翻译： 超声波诊断装置使用形成有以同心环二维排列的换能器元件的多环布置将超声波束发射到待检查对象中，并接收回波，以产生该物体的断层图像或三维图像 。 为了校正由于超声波传播路径的长度差引起的聚焦误差，超声波诊断装置对换能器元件进行分组以形成多环布置，将多个延迟的超声波波束发送/接收到多环的每个环 布置并扫描超声波束以产生超声波图像，测量由于存在对象的声速不均匀部分而导致的延迟误差，并且基于测量误差改变多环的耦合或延迟时间 。
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公开(公告)号：US07029445B2
公开(公告)日：2006-04-18
申请号：US10169979
申请日：2001-01-12
申请人： Ryuichi Shinomura , Yuichi Miwa , Hirotaka Baba
发明人： Ryuichi Shinomura , Yuichi Miwa , Hirotaka Baba
IPC分类号： A61B8/00
CPC分类号： G01S15/8925 , A61B8/00 , A61B8/4494 , B06B1/0625 , G01S7/52046 , G01S7/52049 , G01S15/8922 , G01S15/8927 , G10K11/346
摘要： An ultrasonic diagnostic apparatus transmits an ultrasonic beam into an object to be examined using a multi-ring arrangement formed with transducer elements arrayed two-dimensionally in concentric rings and receives an echo so as to create a tomogram or a three-dimensional image of the object. To correct for focusing error due to the difference in length of ultrasound propagating paths, the ultrasonic diagnostic apparatus groups the transducer elements so as to form a multi-ring arrangement, transmits/receives ultrasonic beams with a delay to each ring of the multi-ring arrangement and scans the ultrasonic beam so as to create an ultrasonic image, measures delay error due to presence of a sound speed non-uniformity portion of the object and changes either the coupling of the multi-ring or the delay time based on the measurement error.
摘要翻译： 超声波诊断装置使用形成有以同心环二维排列的换能器元件的多环布置将超声波束发射到待检查对象中，并接收回波，以产生该物体的断层图像或三维图像 。 为了校正由于超声波传播路径的长度差引起的聚焦误差，超声波诊断装置对换能器元件进行分组以形成多环布置，将多个延迟的超声波波束发送/接收到多环的每个环 布置并扫描超声波束以产生超声波图像，测量由于存在对象的声速不均匀部分而导致的延迟误差，并且基于测量误差改变多环的耦合或延迟时间 。
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公开(公告)号：US08079956B2
公开(公告)日：2011-12-20
申请号：US12348135
申请日：2009-01-02
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , G01S7/52077 , G01S15/8995
摘要： In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.
摘要翻译： 在具有图像合成单元的超声波成像装置中，计算要合成的图像之间的相关性，以在对比度分辨率的提高和空间分辨率的改善之间进行平衡，并且计算图像之间的位移量。 当位移量大时，合成包络检测后的信号。 当位移量小时，合成RF信号。 或者，混合频率可以根据位移量而变化，并且根据位置偏移的程度来实现空间分辨率和合同分辨率的改善之间的平衡。
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公开(公告)号：US20090118617A1
公开(公告)日：2009-05-07
申请号：US12348135
申请日：2009-01-02
IPC分类号： A61B8/14
CPC分类号： A61B8/00 , G01S7/52077 , G01S15/8995
摘要： In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.
摘要翻译： 在具有图像合成单元的超声波成像装置中，计算要合成的图像之间的相关性，以在对比度分辨率的提高和空间分辨率的改善之间进行平衡，并且计算图像之间的位移量。 当位移量大时，合成包络检测后的信号。 当位移量小时，合成RF信号。 或者，混合频率可以根据位移量而变化，并且根据位置偏移的程度来实现空间分辨率和合同分辨率的改善之间的平衡。
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公开(公告)号：US07473226B2
公开(公告)日：2009-01-06
申请号：US10562465
申请日：2004-06-09
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , G01S7/52077 , G01S15/8995
摘要： In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.
摘要翻译： 在具有图像合成单元的超声波成像装置中，计算要合成的图像之间的相关性，以在对比度分辨率的提高和空间分辨率的改善之间进行平衡，并且计算图像之间的位移量。 当位移量大时，合成包络检测后的信号。 当位移量小时，合成RF信号。 或者，混合频率可以根据位移量而变化，并且根据位置偏移的程度来实现空间分辨率和合同分辨率的改善之间的平衡。
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公开(公告)号：US20060173334A1
公开(公告)日：2006-08-03
申请号：US10562465
申请日：2004-06-09
IPC分类号： A61B8/06
CPC分类号： A61B8/00 , G01S7/52077 , G01S15/8995
摘要： In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.
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