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    • 2. 发明授权
    • Ultrasonic imaging system using plural square wave pulse trains of
successively delayed intervals
    • 超声波成像系统采用多个方波脉冲序列连续延时
    • US4348902A
    • 1982-09-14
    • US206827
    • 1980-11-14
    • Ryobun TachitaYoshihiro HayakawaKazuyoshi IriokaHiroshi FukukitaTsutomu YanoAkira Fukumoto
    • Ryobun TachitaYoshihiro HayakawaKazuyoshi IriokaHiroshi FukukitaTsutomu YanoAkira Fukumoto
    • A61B8/00A61B8/14G01S7/52G01N29/00
    • G01S7/52063
    • 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.
    • 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。
    • 6. 发明授权
    • Scan converter for a sector scan type ultrasound imaging system
    • 扫描转换器用于扇区扫描型超声成像系统
    • US4310907A
    • 1982-01-12
    • US100707
    • 1979-12-04
    • Ryobun TachitaYoshihiro HayakawaHiroshi FukukitaTsutomu YanoKazuyoshi IriokaAkira Fukumoto
    • Ryobun TachitaYoshihiro HayakawaHiroshi FukukitaTsutomu YanoKazuyoshi IriokaAkira Fukumoto
    • A61B8/00A61B8/14G01S7/531G01S15/89
    • G01S7/52044
    • 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.
    • 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。
    • 10. 发明授权
    • Ultrasonic probe
    • 超声波探头
    • US09339255B2
    • 2016-05-17
    • US13164160
    • 2011-06-20
    • Shigeyoshi HasegawaKazuyoshi IriokaJun Koizumi
    • Shigeyoshi HasegawaKazuyoshi IriokaJun Koizumi
    • A61B8/00A61B8/12G10K11/00G10K11/35
    • A61B8/4461A61B8/12G10K11/004G10K11/355
    • In an ultrasonic probe including an element part 1 for transmitting and receiving ultrasonic waves, a relay cable 2 connected to the element part 1 and an oscillation mechanism part for oscillating the element part, a cross section of the relay cable 2, which is taken perpendicularly to a rotation axis 3 of the oscillation that is provided to the element part 1 by the oscillation mechanism part, has at least two arc-shaped parts smoothly connected each other, more specifically, S-shape arc-shaped parts or reversed S-shaped parts. In addition, the relay cable 2 is drawn from the surface of the element part 1 facing the rotation axis 3. In this manner, the stress applied to the relay cable 2 during the oscillation of the element part 1 can be dispersed, thereby improving durability of the relay cable 2.
    • 在包括用于发送和接收超声波的元件部分1的超声波探头中,连接到元件部分1的继电器电缆2和用于振荡元件部分的振荡机构部分,垂直于中心电缆2的中继电缆2的横截面 通过振动机构部向旋转轴3提供的振动,具有至少两个弧形部分彼此平滑地连接,更具体地说是S形的弧形部分或反转的S形 部分。 此外,继电器电缆2从元件部件1的面向旋转轴线3的表面拉出。以这种方式,可以分散在元件部件1的振荡期间施加到继电器电缆2的应力,从而提高耐久性 的继电器电缆2。