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1. 发明授权

US4423737A Combination tomographic and cardiographic ultrasonic imaging method and system 失效
标题翻译：组合断层扫描和心脏超声成像方法及系统
公开(公告)号：US4423737A
公开(公告)日：1984-01-03
申请号：US231935
申请日：1981-02-04
申请人： Tsutomu Yano , Yoshihiro Hayakawa , Ryobun Tachita , Kazuyoshi Irioka , Hiroshi Fukukita , Akira Fukumoto
发明人： Tsutomu Yano , Yoshihiro Hayakawa , Ryobun Tachita , Kazuyoshi Irioka , Hiroshi Fukukita , Akira Fukumoto
IPC分类号： A61B8/00 , A61B8/08 , A61B8/14 , G01S7/52 , G01S15/89 , A61B10/00
CPC分类号： A61B8/14 , G01S15/8918 , G01S7/52074
摘要： Ultrasonic echo signals are successively sampled and converted to digital echo data which are written into a first digital memory column by column and then read out row by row into a first buffer memory. The digital echo data which are derived in response to beams successively transmitted in a predetermined direction are written into columns of a second digital memory and read out of the memory in rows into a second buffer memory. The data stored in the first and second buffer memories are read out for digital-to-analog conversion and selectively applied within a television "frame" interval to control electron beam intensity of a single cathode ray tube so as to present tomographic and cardiographic images in different display areas of the tube.
摘要翻译：超声波回波信号被连续采样并转换成数字回波数据，数字回波数据逐列地写入第一数字存储器，然后逐行读出到第一缓冲存储器中。响应于沿预定方向连续发送的波束而导出的数字回波数据被写入第二数字存储器的列，并以行的形式从存储器读出到第二缓冲存储器中。读出存储在第一和第二缓冲存储器中的数据进行数模转换，并选择性地施加在电视“帧”间隔内以控制单个阴极射线管的电子束强度，以便将断层摄影和心电图像呈现在管的不同显示区域。

2. 发明授权

US4348902A Ultrasonic imaging system using plural square wave pulse trains of successively delayed intervals 失效
标题翻译：超声波成像系统采用多个方波脉冲序列连续延时
公开(公告)号：US4348902A
公开(公告)日：1982-09-14
申请号：US206827
申请日：1980-11-14
申请人： Ryobun Tachita , Yoshihiro Hayakawa , Kazuyoshi Irioka , Hiroshi Fukukita , Tsutomu Yano , Akira Fukumoto
发明人： Ryobun Tachita , Yoshihiro Hayakawa , Kazuyoshi Irioka , Hiroshi Fukukita , Tsutomu Yano , Akira Fukumoto
IPC分类号： A61B8/00 , A61B8/14 , G01S7/52 , G01N29/00
CPC分类号： G01S7/52063
摘要： A sector scan ultrasonic imaging system comprises a source of a plurality of square wave pulse trains each being delayed by a unit quantization time with respect to adjacent trains, and a plurality of transmitter circuits corresponding to the elements of a transducer array. The duration of each square wave pulse is an integral multiple of the unit quantization time interval. Each transmitter circuit includes a read only memory in which a set of different digital delay time data is stored for the corresponding transducer element and is arranged to be retrieved in response to each angle increment of the ultrasonic beam transmitted from the array. Further included are a data selector for selecting a pulse train in response to a pulse train selection data retrieved from the memory and a programmable counter for counting the pulses of the selected train to generate an output in accordance with a pulse selection data retrieved from the memory. An Exclusive-OR gate is further included to provide bit inversion of the selected pulse train in selective response to the binary state of a data retrieved from the memory so that the number of available square wave pulse trains is doubled. A gating circuit responds to the output of the counter by gating a pulse of the selected pulse train to the corresponding transducer element.
摘要翻译：扇区扫描超声成像系统包括多个方波脉冲串的源，每个方波延迟相对于相邻列的单位量化时间，以及对应于换能器阵列的元件的多个发射器电路。每个方波脉冲的持续时间是单位量化时间间隔的整数倍。每个发射机电路包括只读存储器，其中针对相应的换能器元件存储一组不同的数字延迟时间数据，并且被布置为响应于从阵列发射的超声波束的每个角度增量而被检索。还包括一个数据选择器，用于响应于从存储器检索的脉冲序列选择数据选择一个脉冲序列，以及一个可编程计数器，用于根据从存储器检索的脉冲选择数据计算所选择的列车的脉冲以产生一个输出。进一步包括异或门以提供选择性响应于从存储器检索的数据的二进制状态的所选脉冲序列的位反转，使得可用的矩形波脉冲序列的数量加倍。门控电路通过将所选择的脉冲串的脉冲门控到相应的换能器元件来响应计数器的输出。

3. 发明授权

US4440025A Arc scan transducer array having a diverging lens 失效
标题翻译：具有发散透镜的弧扫描换能器阵列
公开(公告)号：US4440025A
公开(公告)日：1984-04-03
申请号：US277816
申请日：1981-06-26
申请人： Yoshihiro Hayakawa , Tsutomu Yano , Ryobun Tachita , Hiroshi Fukukita , Kazuyoshi Irioka , Akira Fukumoto
发明人： Yoshihiro Hayakawa , Tsutomu Yano , Ryobun Tachita , Hiroshi Fukukita , Kazuyoshi Irioka , Akira Fukumoto
IPC分类号： H04R17/00 , A61B8/00 , A61B8/14 , B06B1/06 , G01S7/521 , G01S7/523 , G01S15/89 , G10K11/02 , G10K11/30 , G10K11/32 , G10K11/34 , G01N29/00
CPC分类号： G01S15/892 , B06B1/0633 , G10K11/02 , G10K11/32
摘要： An ultrasonic transducer array for arc scan imaging systems comprises a plurality of elongated piezoelectric transducers arranged successively to define a convexed energy radiating surface. A plano-concave acoustic diverging lens is attached to the convexed surface to diverge the acoustic energy transmitted from the transducers in an increased steering angle. The transducers are assembled on an impedance matching layer which defines the convexed radiating surface. The acoustic impedance of the diverging lens is substantially equal to the acoustic impedance of the human body, while the acoustic impedance of the impedance matching layer is greater than that of the human body.
摘要翻译：用于电弧扫描成像系统的超声换能器阵列包括多个细长的压电换能器，其连续布置以限定凸起的能量辐射表面。平凹声扩散透镜附着到凸起的表面上，以在增加的转向角度上分离从换能器传递的声能。换能器组装在限定凸起辐射表面的阻抗匹配层上。发散透镜的声阻抗基本上等于人体的声阻抗，而阻抗匹配层的声阻抗大于人体的声阻抗。

4. 发明授权

US4470308A Arc scan ultrasonic imaging system having diverging lens and path-length compensator 失效
标题翻译：具有发散透镜和路径长度补偿器的电弧扫描超声成像系统
公开(公告)号：US4470308A
公开(公告)日：1984-09-11
申请号：US404917
申请日：1982-08-03
申请人： Yoshihiro Hayakawa , Tsutomu Yano , Ryobun Tachita , Hiroshi Fukukita , Kazuyoshi Irioka , Akira Fukumoto
发明人： Yoshihiro Hayakawa , Tsutomu Yano , Ryobun Tachita , Hiroshi Fukukita , Kazuyoshi Irioka , Akira Fukumoto
IPC分类号： H04R17/00 , A61B8/00 , A61B8/14 , B06B1/06 , G01S7/521 , G01S7/523 , G01S15/89 , G10K11/02 , G10K11/30 , G10K11/32 , G10K11/34 , G01N29/00
CPC分类号： G01S15/892 , B06B1/0633 , G10K11/02 , G10K11/32
摘要： An ultrasonic imaging system comprises a transducer array including a plurality of elongated piezoelectric transducers successively arranged along a curved surface for emission of diverging beams of acoustic energy and an acoustic diverging lens affixed to the curved surface for increasing the angle of divergence of the emitted acoustic energy. The system includes a source for successively generating burst energy and means for selectively establishing a connection from the energy source to a subarray of the transducers to transmit a beam of acoustic energy therefrom and shifting the connection to the next subarray by at least one transducer in response to the generation of subsequent acoustic energy to cause the emitted acoustic energy to be angulated in an arc scan format. Means are provided for compensating for differences in energy level resulting from the differences in the path-length of the acoustic lens.
摘要翻译：超声波成像系统包括换能器阵列，其包括沿着弯曲表面连续布置的多个细长的压电换能器，用于发射发散的声能束，以及固定到弯曲表面的声发散透镜，用于增加发射的声能的发散角。该系统包括用于连续产生突发能量的源和用于选择性地建立从能量源到换能器的子阵列的连接的装置，以从其传输声能束，并响应于至少一个换能器将连接移动到下一个子阵列以产生随后的声能以使发射的声能以弧扫描格式成角度。提供了用于补偿由声透镜的路径长度差异引起的能量差异的装置。

5. 发明授权

US4310907A Scan converter for a sector scan type ultrasound imaging system 失效
标题翻译：扫描转换器用于扇区扫描型超声成像系统
公开(公告)号：US4310907A
公开(公告)日：1982-01-12
申请号：US100707
申请日：1979-12-04
申请人： Ryobun Tachita , Yoshihiro Hayakawa , Hiroshi Fukukita , Tsutomu Yano , Kazuyoshi Irioka , Akira Fukumoto
发明人： Ryobun Tachita , Yoshihiro Hayakawa , Hiroshi Fukukita , Tsutomu Yano , Kazuyoshi Irioka , Akira Fukumoto
IPC分类号： A61B8/00 , A61B8/14 , G01S7/531 , G01S15/89
CPC分类号： G01S7/52044
摘要： A scan converter is disclosed for use in a sector scan type ultrasound imaging system in which ultrasound echo signals return from targets along a plurality of radial scan lines distributed in a sector field with a substantially equal tangential angular increment with respect to a reference line. The scan converter comprises a sampling circuit which samples the echo signals at a speed inversely proportional to the cosine of the angle of deflection of the radial scan lines with respect to the reference line so that the sampled points align themselves in lateral lines perpendicular to the reference line. The sampled echo signals are converted into digital echo data and stored in a random access memory in the direction of its columns. The stored data are retrieved serially in the direction of the rows and fed into an interpolator for making interpolations between the successively retrieved echo data. The interpolation data are read into a line memory in succession with the data retrieved from the RAM during each raster scan interval, and then retrieved at a constant rate from preselected storage locations so that the data on the raster scan lines have approximately equal density. The retrieved data from the line memory are converted in analog signals and displayed on a viewing screen.
摘要翻译：公开了一种用于扇区扫描型超声成像系统的扫描转换器，其中超声回波信号沿着分布在扇区中的多个径向扫描线从目标返回，其具有相对于参考线的基本相等的切角增量。扫描转换器包括采样电路，该采样电路以与扫描线相对于参考线的偏转角的余弦成反比的速度对回波信号进行采样，使得采样点在与参考线垂直的横向线上对齐线。采样的回波信号被转换成数字回波数据，并在其列的方向上存储在随机存取存储器中。存储的数据在行的方向上被串行检索，并被馈送到用于在连续检索的回波数据之间进行内插的内插器。插补数据在每个光栅扫描间隔期间从RAM中检索的数据连续读入行存储器，然后以预定的存储位置以恒定速率检索，使得光栅扫描线上的数据具有大致相等的密度。来自行存储器的检索数据被转换为模拟信号并显示在观看屏幕上。

6. 发明授权

US4368643A Ultrasonic imaging by radial scan beams emanating from a hypothetical point located behind linear transducer array 失效
标题翻译：通过径向扫描光束从位于线性换能器阵列后面的假想点发出的超声波成像
公开(公告)号：US4368643A
公开(公告)日：1983-01-18
申请号：US206828
申请日：1980-11-14
申请人： Ryobun Tachita , Hiroshi Fukukita , Yoshihiro Hayakawa , Kazuyoshi Irioka
发明人： Ryobun Tachita , Hiroshi Fukukita , Yoshihiro Hayakawa , Kazuyoshi Irioka
IPC分类号： A61B8/00 , G01N29/24 , G01S7/52 , G10K11/34 , G01N29/00
CPC分类号： G10K11/345 , G01S15/8927 , G01S7/52063 , G01S7/52085
摘要： An ultrasonic imaging system includes a linear array of transducers of which a group of successively arranged transducers is selected and successively shifted to the next by at least one transducer. The transducers of the selected group are successively activated at respective delay times to transmit a radial scan beam which appears to emanate from a hypothetical point source located behind the transducer array. A scan converter is provided for conversion of analog echo signals in sector scan format to digital echo data in raster format for visual display.
摘要翻译：超声波成像系统包括换能器的线性阵列，其中一组连续布置的换能器被选择并由至少一个换能器连续地移动到下一个换能器。所选择的组的换能器在相应的延迟时间连续地被激活，以发射似乎从位于换能器阵列后面的假想点源发出的径向扫描光束。提供了一种扫描转换器，用于将扇区扫描格式的模拟回波信号转换为光栅格式的数字回波数据，以进行视觉显示。

7. 发明授权

US4593700A Ultrasonic wave blood flow meter 失效
标题翻译：超声波血流量计
公开(公告)号：US4593700A
公开(公告)日：1986-06-10
申请号：US647489
申请日：1984-09-05
申请人： Yoshihiro Hayakawa , Yasuhiro Nakamura , Ryobun Tachita , Tsutomu Yano
发明人： Yoshihiro Hayakawa , Yasuhiro Nakamura , Ryobun Tachita , Tsutomu Yano
IPC分类号： G01P5/00 , A61B8/00 , A61B8/06 , G01F1/66 , G01S15/89 , A61B10/00
CPC分类号： G01S15/8979 , A61B8/06
摘要： An ultrasonic wave blood flow meter comprises a probe which sends to and receives an ultrasonic wave reflected with Doppler effect from the blood flow, a detecting circuit for converting a frequency variation of the received reflected wave into a first signal whose amplitude varies with frequency and a second signal whose amplitude is kept constant, and first and second effective-value detecting circuits for obtaining d.c. components of the first and second signals. A level discrimination circuit is further provided for discriminating the level of the d.c. component detected by the second effective-value detecting circuit. First and second sensitivity-variable amplifiers are also provided for varying their sensitivities in accordance with the result of the level discrimination circuit. A dividing circuit divides the d.c. component amplified by the first sensitivity-variable amplifier by the d.c. component amplified by the second sensitivity-variable amplifier, and a voltage hold circuit holds the output of the dividing circuit in accordance with the discrimination result of the level discrimination circuit.
摘要翻译：超声波血流计包括从血流发送并接收以多普勒效应反射的超声波的探针，用于将接收到的反射波的频率变化变换为振幅随频率变化的第一信号的检测电路，振幅保持恒定的第二信号，以及用于获得dc的第一和第二有效值检测电路第一和第二信号的分量。还提供了一个电平鉴别电路，用于区分直流电平的电平。分量由第二有效值检测电路检测。还提供第一和第二灵敏度可变放大器，以根据电平鉴别电路的结果来改变它们的灵敏度。分频电路将直流分频由第一灵敏度可变放大器由直流电放大的分量。分量由第二灵敏度可变放大器放大，并且电压保持电路根据电平鉴别电路的鉴别结果保持分频电路的输出。

8. 发明授权

US4287768A Beam deflection method and apparatus for sector scan ultrasound imaging systems 失效
标题翻译：用于扇形扫描超声成像系统的光束偏转方法和装置
公开(公告)号：US4287768A
公开(公告)日：1981-09-08
申请号：US93019
申请日：1979-11-09
申请人： Yoshihiro Hayakawa , Hiroshi Fukukita
发明人： Yoshihiro Hayakawa , Hiroshi Fukukita
IPC分类号： G01N29/26 , G01S7/52 , G01N29/00
CPC分类号： G01N29/262 , G01S7/52063
摘要： Beam deflection delay time data of (L.times.M) data bits are stored in a read-only memory from which each datum is retrieved successively when the ultrasound beam is deflected to a given angle and repeatedly accumulated in a digital adder through a latching circuit connected between the output and input of the adder, where L is the number of discrete steps of deflection angle and M is a binary number representing the total delay time of piezoelectric transducers. The successively latched data is distributed to respective programmable counters for presetting the count values thereof to store therein respective delay time data. High frequency count pulses are supplied to the counters after the latter has been preset for delivery of carry outputs to the associated piezoelectric transducers. Beam convergence delay time data is also stored in a second memory from which each datum is retrieved for each transducer element and accumulated so that a tapered configuration of binary differential numbers is created and added to the beam deflection delay time data for converging the ultrasound beam.
摘要翻译：（LxM）数据位的光束偏转延迟时间数据存储在只读存储器中，当超声波束偏转到给定的角度并连续地在数字加法器中重复累积时，连续检索每个数据，输出和输入，其中L是偏转角的离散步长数，M是表示压电换能器的总延迟时间的二进制数。相继锁存的数据被分配到相应的可编程计数器，用于预置它们的计数值，以在其中存储相应的延迟时间数据。高速计数脉冲在预先设定为递送输出到相关的压电换能器之后被提供给计数器。光束会聚延迟时间数据也被存储在第二存储器中，从每个传感器元件检索每个数据并累积，从而产生二进制差分数的锥形配置并将其相加到用于会聚超声波束的光束偏转延迟时间数据。

9. 发明授权

US07082165B2 Video compression and transmission apparatus and video compression and transmission method 失效
公开(公告)号：US07082165B2
公开(公告)日：2006-07-25
申请号：US09911596
申请日：2001-07-24
申请人： Tsutomu Uenoyama , Atsushi Ando , Yoshihiro Hayakawa
发明人： Tsutomu Uenoyama , Atsushi Ando , Yoshihiro Hayakawa
IPC分类号： H04N7/12
CPC分类号： G06T9/00
摘要： The video compression transmission apparatus comprises a video input unit for inputting pictures, a video compression unit for compressing input pictures, a video transmission unit for transmitting compressed pictures via a communication line, and a controller for controlling operation of each unit. Video compression via a video compression unit and video transmission via a video transmission unit are performed in parallel. Video compression method via the video compression unit and video transmission method via a video transmission unit are controlled by the controller so that each processing time becomes about the same.

10. 发明授权

US08104330B2 Method and apparatus for analysis by liquid chromatography 有权
标题翻译：用于液相色谱分析的方法和装置
公开(公告)号：US08104330B2
公开(公告)日：2012-01-31
申请号：US12278867
申请日：2006-02-09
申请人： Morimasa Hayashi , Yoshihiro Hayakawa
发明人： Morimasa Hayashi , Yoshihiro Hayakawa
IPC分类号： G01N30/30
CPC分类号： G01N30/30 , G01N30/34 , G01N2030/3007 , G01N2030/347
摘要： In order to obtain a temperature gradient elution method which is rapid and accurate, a mobile phase (1) is supplied through two mobile-phase flow channels (2a) and (2b), mixed together, and introduced into the column (15) while the column (15) is made adiabatic. In this operation, the temperature of the mobile phase in one mobile-phase flow channel, i.e., the channel (2a), is regulated to a constant temperature higher than the upper limit of the target temperature range to be obtained in the column (15), while the temperature of the mobile phase in the other mobile-phase flow channel, i.e., the channel (2b), is regulated to a constant temperature lower than the lower limit of the target temperature range in the column (15). By controlling the flow rates in the two mobile-phase flow channels (2a) and (2b), the proportion in which these mobile-phase portions are mixed is changed with time to thereby change the temperature of the mobile phase in the column (15) with time. The temperature gradient elution method is thus conducted.
摘要翻译：为了获得快速准确的温度梯度洗脱方法，将流动相（1）通过两个流动相流动通道（2a）和（2b）供应，混合在一起，并引入塔（15），同时柱（15）是绝热的。在该操作中，一个流动相流路（即，通道（2a））中的流动相的温度被调节到高于在列（15）中获得的目标温度范围的上限的恒定温度），而另一流动相流路（即，通道（2b））中的流动相的温度被调节到低于列（15）中的目标温度范围的下限的恒定温度。通过控制两个流动相流动通道（2a）和（2b）中的流速，混合这些流动相部分的比例随时间而改变，从而改变塔（15）中流动相的温度）随着时间的推移。因此进行温度梯度洗脱法。

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