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公开(公告)号：US5230312A
公开(公告)日：1993-07-27
申请号：US962719
申请日：1992-10-19
IPC分类号： F01L1/38 , F02B1/04 , F02B3/06 , F02B19/08 , F02B23/00 , F02B25/14 , F02B25/26 , F02B75/02 , F02F1/24 , F02F1/42
CPC分类号： F02B25/145 , F02F1/4221 , F02B1/04 , F02B2075/025 , F02B2275/18 , F02B3/06 , F02F2001/245
摘要： A two-stroke engine comprising three exhaust valves and two intake valves. These exhaust valves and these intake valves are arranged on the peripheral portion of the inner wall of the cylinder head, and one additional intake valve is arranged on the central portion of the inner wall of the cylinder head. The valve openings of the three intake valves, which are located on the exhaust valves side, are masked by the masking walls. The central portion of the combustion chamber is scavenged by the fresh air fed from the additional intake valve, and the peripheral portion of the combustion chamber is scavenged by the fresh air fed from the remaining two intake valves.
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公开(公告)号：US5188113A
公开(公告)日：1993-02-23
申请号：US680163
申请日：1991-04-03
申请人： Takeshi Sato , Sumiko Saito
发明人： Takeshi Sato , Sumiko Saito
CPC分类号： G01S15/8979 , A61B8/06 , A61B8/13 , G01S7/52074 , A61B8/488
摘要： An ultrasonic diagnosis apparatus comprises an ultrasonic probe for scanning ultrasonic waves in a cross-sectional area of a subject, and receiving the reflected ultrasonic waves, a B-mode processor for detecting the intensity of the reflected ultrasonic waves, thereby obtaining tomographic images of the subject, an MTI processor for detecting a Doppler shift of the reflected waves, thereby obtaining blood flow data representing the velocity and direction of blood flow in the tomographic image, and a coloring processing circuit for receiving the outputs of the B-mode processor and the MTI processor and coloring the blood flow part in a monochromatic tomographic image in accordance with the velocity and direction of the blood flow. A first digital scan converter is connected between the B-mode processor and the color processing circuit and a second digital scan converter is connected between the MTI processor and the color processing circuit. The first digital scan converter changes the scan direction for of the tomographic image and produces an interpolated tomographic image. The second digital scan converter changes the scan direction of scanning blood flow data, detects aliasing of blood data, and produces an interpolated blood flow data, the interpolation being controlled in accordance with the detection of aliasing.
摘要翻译： 超声波诊断装置包括：超声波探头，用于在被检体的横截面积内扫描超声波，接收反射的超声波; B模式处理器，用于检测反射的超声波的强度，由此获得 用于检测反射波的多普勒频移的MTI处理器，从而获得表示断层图像中的血流速度和方向的血流数据，以及着色处理电路，用于接收B模式处理器和 MTI处理器，并根据血流的速度和方向将血流部分着色在单色断层图像中。 第一数字扫描转换器连接在B模式处理器和色彩处理电路之间，第二数字扫描转换器连接在MTI处理器和彩色处理电路之间。 第一数字扫描转换器改变断层图像的扫描方向并产生内插的断层图像。 第二数字扫描转换器改变扫描血流数据的扫描方向，检测血液数据的混叠，并产生内插的血流数据，根据混叠的检测来控制插值。
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公开(公告)号：US5085851A
公开(公告)日：1992-02-04
申请号：US552533
申请日：1990-07-16
CPC分类号： A61K8/66 , A61Q11/00 , Y10S514/90 , Y10S514/901 , Y10S514/902
摘要： A dental plaque-degrading composition containing endodextranase produced by Arthrobacter globiformis W31 exhibiting high degradation efficacy to insoluble glucan produced by Streptococcus mutans IFO 13955, the dental plaque-degrading composition additionally containing .alpha.-amylase of various origins. These compositions are useful for preventing the settlement of Streptococcus mutans in the oral cavity and the formation of new dental plaque and for preventing the dental caries, and provided in the form of dentifrices, denture detergents, troches, mouth washes, chewing gums or candies.
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公开(公告)号：US5081996A
公开(公告)日：1992-01-21
申请号：US556524
申请日：1990-07-24
申请人： Schuichi Kawasaki , Nobuo Yamazaki , Takeshi Sato
发明人： Schuichi Kawasaki , Nobuo Yamazaki , Takeshi Sato
CPC分类号： G01S15/8979 , B82Y15/00 , G01S15/8906 , G01S15/8977 , G01S7/52046 , G01S7/5206 , G01S7/52071 , G01S7/52085
摘要： An ultrasonic imaging apparatus comprises an ultrasonic transducer for transmitting ultrasonic beams to a subject and converting echoes from the subject to echo signals, a scan controller for selectively switching a scanning mode between a first scanning mode in which a predetermined number of rasters in each of a plurality of scanning blocks each having the predetermined number of rasters are scanned repeatedly and echo signals at a predetermined number of sample points in each of the rasters are extracted block by block and a second scanning mode in which a plurality of rasters are repeatedly scanned a predetermined number of times while at least one raster is shifted sequentially and data are output at constant intervals, a transmitter/receiver circuit for driving the ultrasonic transducer in accordance with a scanning mode selected by the scan controller, processes the echo signals output from the ultrasonic transducer to output an image signal and a television monitor for visually displaying the image signal.
摘要翻译： 超声波成像装置包括用于将超声波束发射到对象并将来自受试者的回波转换成回波信号的超声波换能器，扫描控制器，用于在第一扫描模式之间有选择地切换扫描模式，在第一扫描模式中， 重复扫描具有预定数量的光栅的多个扫描块，并且逐块地提取每个光栅中的预定数量的采样点处的回波信号，并且第二扫描模式，其中多个光栅重复扫描预定的 在至少一个光栅顺序移位并以恒定间隔输出数据的次数的同时，根据由扫描控制器选择的扫描模式驱动超声波换能器的发射器/接收器电路处理从超声换能器输出的回波信号 以便视觉地输出图像信号和电视监视器 显示图像信号。
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公开(公告)号：US4970637A
公开(公告)日：1990-11-13
申请号：US208489
申请日：1988-06-20
申请人： Takeshi Sato
发明人： Takeshi Sato
CPC分类号： H03H17/0263 , G01S7/52028
摘要： An original analog signal is supplied to A/D converter 2 through analog LPF 1. LPF 1 has a cutoff frequency of fa/2 (fa is the frequency of a clock pulse supplied to A/D converter 2). LPF 1 limits a frequency band determined by filter characteristics. An output from A/D converter 2 is supplied to sample circuit 4 through maximum filter 3. An output from sample circuit 4 is supplied to a circuit of the next stage as final output Dout. Maximum filter 3 can arbitrarily set the number of sampling interval data (filter width). Maximum filter 3 is a nonlinear filter for outputting a maximum value of input data within a set filter width as a representative value of the width. The clock pulse of frequency fa is also supplied to maximum filter 3 so that input/output operation of data is synchronized with the clock pulse. The filter width of maximum filter 3 is determined in accordance with fa/fb (fb is the frequency of a clock pulse supplied to sample circuit 4 , and fa.gtoreq.fb).
摘要翻译： 原始模拟信号通过模拟LPF 1提供给A / D转换器2. LPF 1的截止频率为fa / 2（fa是提供给A / D转换器2的时钟脉冲的频率）。 LPF 1限制由滤波器特性确定的频带。 来自A / D转换器2的输出通过最大滤波器3提供给采样电路4.来自采样电路4的输出被提供给下一级的电路作为最终输出Dout。 最大滤波器3可以任意设置采样间隔数据的数量（滤波器宽度）。 最大滤波器3是用于输出设定滤波器宽度内的输入数据的最大值作为宽度的代表值的非线性滤波器。 频率fa的时钟脉冲也被提供给最大滤波器3，使得数据的输入/输出操作与时钟脉冲同步。 根据fa / fb（fb是提供给采样电路4的时钟脉冲的频率，fa> / = fb）确定最大滤波器3的滤波器宽度。
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公开(公告)号：US4968948A
公开(公告)日：1990-11-06
申请号：US379768
申请日：1989-07-14
申请人： Akio Tokumo , Masayuki Kato , Takeshi Sato , Tatsuzo Hasegawa
发明人： Akio Tokumo , Masayuki Kato , Takeshi Sato , Tatsuzo Hasegawa
摘要： A balanced transformer-less pulse width modulation amplifier circuit has two filter coils wound on the same core with the same polarity relative to the output. The arrangement reduces the possibility of magnetic saturation of the core and permits the cutoff frequency to be within the audio range.
摘要翻译： 平衡无变压器脉冲宽度调制放大器电路具有相对于输出端以相同极性缠绕在同一个芯上的两个滤波器线圈。 该布置降低了磁芯的磁饱和的可能性，并允许截止频率在音频范围内。
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公开(公告)号：US4914707A
公开(公告)日：1990-04-03
申请号：US193136
申请日：1988-05-06
CPC分类号： H04R9/02 , H04R5/02 , H04R9/04 , H04R2499/13 , H04R9/025
摘要： A speaker system for a vehicle having both front and rear speakers. Both speakers are connected in parallel to an amplifier. The impedance of the rear speaker circuit is made greater than that of the front speaker circuit. A resistor may be placed in series with the rear speaker or a shorting ring may be attached to the coil of the front speaker to decrease the high frequency impedance.
摘要翻译： 一种用于车辆的扬声器系统，其具有前置扬声器和后置扬声器。 两个扬声器与放大器并联连接。 后置扬声器电路的阻抗大于前置扬声器电路的阻抗。 可以将电阻器与后置扬声器串联放置，或者可以将短路环连接到前置扬声器的线圈以降低高频阻抗。
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公开(公告)号：US4677692A
公开(公告)日：1987-06-30
申请号：US749416
申请日：1985-06-27
申请人： Seiji Sakashita , Takeshi Sato , Hiroyuki Nagai , Kazuhiko Kubo , Akira Usui
发明人： Seiji Sakashita , Takeshi Sato , Hiroyuki Nagai , Kazuhiko Kubo , Akira Usui
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1483 , H03D2200/0023 , H03D2200/0043 , H03D2200/0047 , H03D2200/0084 , H03D7/125
摘要： A frequency conversion apparatus for converting a high frequency signal into an intermediate frequency signal includes a mixer section for mixing a high frequency signal with a local oscillator signal so as to obtain an intermediate frequency signal, and an amplifier connected to the mixer section via a high frequency stopping circuit for supplying a constant direct current to the mixer section as a constant current source. A current flowing in the mixer section when the local oscillator signal is applied is kept substantially equal to a direct current flowing in the mixer section when no local oscillator signal is applied thereto. The amplifier is used for amplifying either the high frequency signal or the intermediate frequency signal, or both signals at the same time.
摘要翻译： 一种用于将高频信号转换为中频信号的变频装置包括：混频器部分，用于将高频信号与本地振荡器信号混频以获得中频信号;以及放大器，通过高频连接到混频器部分 频率停止电路，用于向混频器部分提供恒定的直流电流作为恒定电流源。 当施加本机振荡器信号时，在混频器部分中流动的电流基本上等于在没有施加本地振荡器信号的情况下在混频器部分中流动的直流电流。 该放大器用于同时放大高频信号或中频信号，或两个信号。
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公开(公告)号：US4550797A
公开(公告)日：1985-11-05
申请号：US571652
申请日：1984-01-17
申请人： Kiyoaki Suzuki , Hidetsugu Suzuki , Katsuhiro Onuki , Isami Nomoto , Yoshiaki Fukuda , Takeshi Sato
发明人： Kiyoaki Suzuki , Hidetsugu Suzuki , Katsuhiro Onuki , Isami Nomoto , Yoshiaki Fukuda , Takeshi Sato
CPC分类号： H04R7/127 , H04R7/02 , H04R2207/021 , H04R2307/023
摘要： A loudspeaker diaphragm comprising a molded, sintered ceramic body is described. The body is made of ceramic crystalline particles whose maximum size is below 1/5 time a thickness of the body which is in the form of a dome or cone. The dome- or cone-shaped diaphragm may have a flange along an opening side thereof in order to prevent deformation as may occur during firing.
摘要翻译： 描述了包括模制的烧结陶瓷体的扬声器隔膜。 身体由陶瓷结晶颗粒制成，其最大尺寸小于半圆形或锥形体形体的1/5倍。 圆顶或锥形隔膜可以具有沿其开口侧的凸缘，以防止在烧制期间可能发生的变形。
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公开(公告)号：US4502077A
公开(公告)日：1985-02-26
申请号：US316423
申请日：1981-10-29
申请人： Noriaki Morotomi , Takeshi Sato
发明人： Noriaki Morotomi , Takeshi Sato
CPC分类号： H04N5/211
摘要： A ghost canceling apparatus for effectively canceling ghosts in television signals and having a high capability for canceling ghosts in the frequency band in which the ghost canceling is required. The apparatus utilizes an error detector and a tap gain control in a closed loop to control the gain of a transversal filter. In addition, a frequency transfer characteristic modifier is utilized to modify the loop frequency transfer characteristics so as to optimize the cancelation of ghosts.
摘要翻译： 一种重影消除装置，用于有效地消除电视信号中的重影，并且具有高的能力以消除需要重影消除的频带中的重影。 该装置利用闭环中的误差检测器和抽头增益控制来控制横向滤波器的增益。 另外，使用频率传递特性修改器来修改环路频率传输特性，以便优化重影的消除。
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