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公开(公告)号：US5031625A
公开(公告)日：1991-07-16
申请号：US555487
申请日：1990-07-30
CPC分类号： G10K11/346
摘要： A received ultrasonic phase matching circuit of the present invention, which utilizes variable delay lines having short delay times as the structural element of variable focus means having a larger aperture and realizes focusing to the regions from the region near the surface of object and to the deeper region thereof, comprises variable attenuators to be controlled individually and variable delay lines having the equal maximum delay times also to be controlled individually to the respective receiving channels forming the maximum aperture for reception of the ultrasonic echoes to form variable aperture by controlling variable attenuators and distribution of delay times for focusing in the aperture using only the variable delay times belonging to such aperture and add and combine the receiving signals delayed by the variable delay lines in the beam steering means.
摘要翻译： PCT No.PCT / JP89 / 00095 Sec。 371日期1990年7月30日 102（e）日1990年7月30日PCT 1989年1月30日PCT PCT。 出版物WO89 / 06933 日本1989年8月10日。本发明的接收超声波相位匹配电路，其利用具有较短延迟时间的可变延迟线作为具有较大孔径的可变焦点装置的结构元件，并实现对来自接近 物体表面和其较深的区域包括可单独控制的可变衰减器和具有相等的最大延迟时间的可变延迟线也被单独地控制到形成用于接收超声回波的最大孔径的各个接收通道以形成变量 通过控制可变衰减器的光圈和用于聚焦在光圈中的延迟时间的分布，仅使用属于这种孔径的可变延迟时间，并且将波长转向装置中延迟了可变延迟线的接收信号相加并组合。
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公开(公告)号：US4631710A
公开(公告)日：1986-12-23
申请号：US591036
申请日：1984-03-19
IPC分类号： G01S7/523 , A61B8/00 , G01S7/527 , G01S7/536 , G01S7/62 , G01S15/89 , G01S15/96 , G10K11/34 , G01S3/80
CPC分类号： G10K11/346 , G01S15/8918 , Y10S367/905
摘要： In ultrasonic transmission from and reception by an array probe in a phased array sonar, when an ultrasonic beam is directed substantially in front of the array probe, an ultrasonic wave having a high center frequency f.sub.o, or a bandwidth extending into higher frequencies, is transmitted and/or received in order to insure a high image resolution. When the ultrasonic beam is steered sideways, an ultrasonic wave having a lower center frequency f.sub.o, or a higher frequency range cutoff in relation to a steering angle .theta., is transmitted and/or received in order to increase the angle at which grating lobes are generated and hence prevent such grating lobes from entering the angle range of the field of view.
摘要翻译： 在相控阵声纳中的阵列探针的超声波发射和接收时，当超声波束被大体上定向在阵列探针的前面时，发射具有高中心频率fo或延伸到更高频率的带宽的超声波 和/或接收以确保高图像分辨率。 当超声波束被横向移动时，发射和/或接收具有较低中心频率fo或相对于转向角θ切断的较高频率范围的超声波，以便增加产生栅瓣的角度 并且因此防止这样的光栅波瓣进入视场的角度范围。
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公开(公告)号：US4475553A
公开(公告)日：1984-10-09
申请号：US396784
申请日：1982-07-09
申请人： Keiki Yamaguchi , Shinichi Sano , Hiromichi Akimoto , Takao Higashiizumi , Mineo Yamanaka , Takahiko Ishihara
发明人： Keiki Yamaguchi , Shinichi Sano , Hiromichi Akimoto , Takao Higashiizumi , Mineo Yamanaka , Takahiko Ishihara
CPC分类号： A61B8/0841 , A61B17/3403 , A61B8/0833 , A61B2017/3413
摘要： An ultrasonic probe, such as for use in ultrasonography, comprising a support having a front end, which may be held against a human body, and a central groove in the side thereof for guiding a puncture needle to move therethrough, and an array of rectangular ultrasonic transducer elements mounted on and lying flatwise on the front end, wherein one or more ultrasonic transducer elements are located adjacent to an open end of the groove at the front end between the other transducer elements, whereby the image display of the needle is improved.
摘要翻译： 例如用于超声检查的超声波探头，包括具有前端的支撑体，该前端可保持抵靠人体;以及位于其侧面的中心槽，用于引导穿刺针移动通过其中的矩形阵列 超声波换能器元件安装在前端上并且平坦地放置在其前端，其中一个或多个超声波换能器元件位于与其它换能器元件之间的前端处的槽的开口端附近，从而改善了针的图像显示。
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公开(公告)号：US4803486A
公开(公告)日：1989-02-07
申请号：US159487
申请日：1988-02-22
CPC分类号： H03K19/17712 , H03K17/002 , H03K5/131
摘要： An improved matrix switch circuit comprising an array of analog switches disposed in the form of a matrix and one or more control memories for storing control signals which cause their respective switches of the array to open or close. An interface is provided between the control memories and the array of the switches. The interface receives the control signals from the control memories and holds them. The held signals are then supplied to the switches of the array. While the switches of the array are being controlled according to the control signals held in the interface, the contents of the control memories can be changed at any desired instant.
摘要翻译： 一种改进的矩阵开关电路，包括以矩阵形式布置的模拟开关阵列和一个或多个控制存储器，用于存储使阵列的相应开关打开或关闭的控制信号。 在控制存储器和开关阵列之间提供一个接口。 接口从控制存储器接收控制信号并保持它们。 然后将保持的信号提供给阵列的开关。 虽然根据保持在接口中的控制信号来控制阵列的开关，但是可以在任何期望的时刻改变控制存储器的内容。
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公开(公告)号：US4445379A
公开(公告)日：1984-05-01
申请号：US362736
申请日：1982-03-29
CPC分类号： G01S7/5276 , G01N29/0645 , G01N2291/0289
摘要： An echo signal receiver receives higher level echo signals reflected from strong reflections sources or reflecting sources at areas close to a probe in a range of higher frequencies, and also receives lower level echo signals reflected from weak reflection sources or sources at areas remote from the probe in a range of low frequencies. The echo signal receiver comprises a multiple stage amplifier circuit for receiving the echo signal. Outputs from amplifiers at front stages are delivered via filters having higher frequency bands, and outputs from amplifiers at rear stages are delivered via filters having lower frequency bands. The outputs are passed through the filters and then combined into a single processed echo signal. As an alternative, a video signal derived from an echo signal which has passed through a circuit for varying frequency characteristics is compared with a reference voltage by a comparator, which produces an output that is rounded off by removing high frequency components in a low pass filter. The rounded off signal is fed to a circuit for varying frequency characteristics to control the same to change its frequency ban while the signal is being received. In another embodiment, the echo signal is received through a variable low cut filter having a cutoff frequency which can be increased or reduced dependent on the level of the echo signal.
摘要翻译： 回波信号接收器在较高频率的范围内从强反射源或靠近探头的区域反射的较高电平的回波信号接收较高电平的回波信号，并且还接收从远离探头的区域的弱反射源或光源反射的较低电平回波信号 在低频范围内。 回波信号接收机包括用于接收回波信号的多级放大器电路。 来自前级放大器的输出通过具有较高频带的滤波器输出，后级放大器的输出通过具有较低频带的滤波器输出。 输出通过滤波器，然后组合成单个经过处理的回波信号。 作为替代，将通过用于变化频率特性的电路的回波信号导出的视频信号通过比较器与参考电压进行比较，该比较器产生通过去除低通滤波器中的高频分量而舍入的输出 。 四舍五入的信号被馈送到用于变化的频率特性的电路以控制它，以在信号被接收时改变其频率禁止。 在另一个实施例中，回波信号通过可变低通滤波器接收，该可变低通滤波器具有可根据回波信号的电平而增加或减小的截止频率。
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公开(公告)号：US5417217A
公开(公告)日：1995-05-23
申请号：US193082
申请日：1994-02-04
申请人： Dai Morita , Takeshi Motodani , Takao Higashiizumi
发明人： Dai Morita , Takeshi Motodani , Takao Higashiizumi
CPC分类号： G01S7/52095 , G01S15/8927 , G01S7/52049 , G10K11/341 , G10K11/345
摘要： In an ultrasonic diagnostic apparatus which uses at least part of an array of a plurality of ultrasonic vibrators as an aperture for ultrasonic beam formation, sends ultrasonic waves into an object, receives echoes from the object, delays the output echo signals of a plurality of vibrators participating in receiving the echoes by a given quantity, adds up the delayed echo signals for echo beam forming, and forms a picture of an internal structure of the object by using the signals obtained by echo beam forming, the echo beam forming is characterized by forming a plurality of partial apertures in an aperture of an array of ultrasonic vibrators, delaying the echo signals provided by groups of vibrators included in the plurality of partial apertures by a given quantity determined so that a plurality of echo beams having a common focal point are formed, adding up the delayed echo signals of each group, detecting the respective sums of the delayed echo signals of the groups, and adding up the respective detected signals of the groups.
摘要翻译： PCT No.PCT / JP92 / 01049 Sec。 371日期1994年2月4日 102（e）日期1994年2月4日PCT提交1992年8月19日PCT公布。 出版物WO93 / 03675 日期：1993年3月4日。在超声波诊断装置中，使用多个超声波振子的阵列的至少一部分作为超声波波束形成的孔径，将超声波发送到对象中，从对象接收回波，延迟输出 参与以给定量接收回波的多个振动器的回波信号相加用于回波波束形成的延迟回波信号，并且通过使用通过回波波束形成获得的信号形成对象的内部结构的图像， 回波波束形成的特征在于在超声波振动器阵列的孔中形成多个部分孔，将包括在多个部分孔径中的振动器组提供的回波信号延迟确定的给定量，使得多个回波束 形成共同的焦点，将每组的延迟回波信号相加，检测组的延迟回波信号的各自的和 并且将各组的相应检测信号相加。
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公开(公告)号：US4924869A
公开(公告)日：1990-05-15
申请号：US254500
申请日：1988-08-23
CPC分类号： G01S15/8979 , A61B8/06 , A61B8/14
摘要： To apply our new invention in the most preferred application mode, we used an ultrasonic diagnostic system that can instantaneously switch over to the CW Doppler method or B-mode imaging method when both methods are combined using a commonly applicable array probe. The ultrasonic diagnostic system based on this new invention is configured with the following features:Dividing multiple vibrating elements of a commonly applicable array probe (3) into two groups, (3T) and (3R), andconnecting the first vibrating element group (3T) to the first transmitting driver (2T) to which low voltage is supplied by the power supply (4), and connecting the second vibrating element group (3R) to the second transmitting driver (2R) to which high voltage is supplied by the power supply (4). For applying the CW Doppler method:Driving the first vibrating element group by the first transmitting driver with a low-voltage continuous wave to transmit a continuous ultrasonic wave and receive an echo signal with the second vibrating element group; For applying the B-mode imaging method:Driving the second vibrating element group by the second transmitting driver using a high-voltage pulse wave to transmit an ultrasonic pulse wave and receive an echo signal with the second vibrating element group.
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公开(公告)号：US5129398A
公开(公告)日：1992-07-14
申请号：US476501
申请日：1990-06-08
CPC分类号： G01S15/8927 , A61B8/00 , G01S7/52046 , G10K11/341 , G10K11/348
摘要： An ultrasonic diagnostic device according to the present invention in which a driving mechanism for driving vibrators in an opening port for the transmission of ultrasonic waves with weighting can be the one of low cost and low heat loss is characterized in that a plurality of driving signals for driving a plurality of vibrators in an opening port for the transmission of ultrasonic waves are made to have different waveforms from each other for weighting.
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公开(公告)号：US5018528A
公开(公告)日：1991-05-28
申请号：US432730
申请日：1989-10-23
申请人： Dai Morita , Yuichi Hirota , Takao Higashiizumi
发明人： Dai Morita , Yuichi Hirota , Takao Higashiizumi
CPC分类号： G01S15/582 , A61B8/488 , G01S7/52017 , G01S7/5202
摘要： A pulse Doppler ultrasonic diagnostic system capable of invariably obtaining best Doppler signals with respect to an arbitrary sample volume length under the condition that mean power of transmit ultrasonic waves is restricted to a constant value. The system has a device for making the mean power constant and a device for making a burst wave number variable for transmit ultrasonic signals and also includes a device for making an integration interval length variable for ultrasonic receiving signals, thereby controlling the burst wave number of the transmit ultrasonic waves and the integration interval length of the ultrasonic receiving signals.
摘要翻译： PCT No.PCT / JP88 / 00441 Sec。 371日期：1989年10月23日 102（e）日期1989年10月23日PCT提交1988年4月30日PCT公布。 出版物WO88 / 08278 日期：1988年11月3日。一种脉冲多普勒超声诊断系统，其能够在发射超声波的平均功率被限制在恒定值的条件下，相对于任意采样体积长度获得最佳的多普勒信号。 该系统具有用于使平均功率恒定的装置和用于发送超声波信号的突发波数变量的装置，并且还包括用于为超声波接收信号提供积分间隔长度可变的装置，从而控制突发波数 发射超声波和超声波接收信号的积分间隔长度。
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公开(公告)号：US4817617A
公开(公告)日：1989-04-04
申请号：US171191
申请日：1988-03-07
CPC分类号： G01S15/8979
摘要： A diagnostic imaging apparatus is disclosed in which an ultrasonic wave transmit/receive apparatus is used in common for both 2-dimensional B-mode imaging and for measurement of pulsed Doppler signals, by time sharing operation. The good real time characteristics of 2-dimensional B-mode imaging are retained, together with a sufficiently high data rate for pulsed Doppler measurement, through use of simple means for performing interpolation in the Doppler signals Ultrasonic wave transmit/receive means (21,23 to 25,27) repetitively execute combinations of ultrasonic wave transmit/receive sequences, each combination consisting of a plurality of pulsed Doppler mode ultrasonic wave transmit/receive sequences and a single 2-dimensional B-mode imaging ultrasonic wave transmit/receive sequence. Demodulator means (38 to 41) demodulate the Doppler signals, based on the received signals that are acquired during the pulsed Doppler mode ultrasonic wave transmit/receive sequences. Sampling means (42 to 44) perform range gate sampling of the demodulated Doppler signals, and interpolation means (45) interpolate sampling values into the Doppler signal to replace sampling values which are lost during execution of the 2-dimensional B-mode imagaing ultrasonic wave transmit/receive sequences. Doppler signal processing means (46 to 48 ) perform processing of the sampling signals following interpolation. 2-dimensional B-mode imaging means process the received signal that is acquired by the 2-dimensional B-mode imaging sequences.
摘要翻译： 公开了一种诊断成像装置，其中超声波发射/接收装置通常用于二维B模式成像和脉冲多普勒信号的测量，通过分时操作。 通过使用在多普勒信号中执行插值的简单手段，保留了二维B模式成像的良好实时特性以及用于脉冲多普勒测量的足够高的数据速率。超声波发射/接收装置（21,23 重复执行超声波发送/接收序列的组合，每个组合由多个脉冲多普勒模式超声波发射/接收序列和单个2维B模式成像超声波发射/接收序列组成。 基于在脉冲多普勒超声波发射/接收序列期间获取的接收信号，解调器装置（38至41）解调多普勒信号。 采样装置（42至44）对解调的多普勒信号进行范围门采样，并且插值装置（45）将采样值内插到多普勒信号中以替代在执行二维B模式想像超声波期间丢失的采样值 发送/接收序列。 多普勒信号处理装置（46〜48）进行插补后的采样信号的处理。 2维B模式成像装置处理通过2维B模式成像序列获取的接收信号。
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