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    • 71. 发明授权
    • Optical information reader
    • 光信息阅读器
    • US5597997A
    • 1997-01-28
    • US540239
    • 1995-10-05
    • Kenzo ObataYosimi KitazumiTakeshi WatanabeKouji TeramaeTadao Nojiri
    • Kenzo ObataYosimi KitazumiTakeshi WatanabeKouji TeramaeTadao Nojiri
    • G06K7/10
    • G06K7/10851G06K7/10732G06K7/10752G06K2207/1018
    • To accurately read optical information more than an opening diameter of a read opening without the read opening contacted with a reading object, in a reader for reading a bar code by irradiating light from a light source to a bar-code label, converging the reflected light through a mirror and a stop by a lens and focusing the converged light on a line image sensor with a shutter, a wavelength detector for detecting a wavelength of the reflected light and a light guide for irradiating light spots indicative of a readable range to the label are provided. Whether a reading state is in a contact reading state in which a read opening contacts the label or in a noncontact reading state in which the read opening separates from the label is determined based on a wavelength of the reflected light detected by the wavelength detector. A light emission quantity and a shutter speed are controlled so as to keep an incident light quantity to the image sensor at an optimum value on a basis of the decided result and reflected light intensity obtained by integrating a line sensor output.
    • 为了准确地读取光学信息而不是读取开口的开口直径,而读取开口与读取对象接触,在用于通过将来自光源的光照射到条形码标签来读取条形码的读取器中,会聚反射光 通过镜子和镜头停止,并将会聚的光聚焦在具有快门的线图像传感器上,用于检测反射光的波长的波长检测器和用于将指示可读范围的光点照射到标签的光导 被提供。 基于由波长检测器检测到的反射光的波长,读取状态是否处于读取开口接触标签的接触读取状态或读取开口与标签分离的非接触读取状态。 控制发光量和快门速度,以便基于所确定的结果和通过对行传感器输出进行积分而获得的反射光强度将图像传感器的入射光量保持在最佳值。
    • 78. 发明授权
    • Current interruption type ignition system for an internal combustion
engine
    • 内燃机电流中断式点火系统
    • US4204509A
    • 1980-05-27
    • US921714
    • 1978-07-03
    • Hirotoshi NanjoTakeshi Watanabe
    • Hirotoshi NanjoTakeshi Watanabe
    • F02P1/08F02P1/00
    • F02P1/083
    • A current interruption type ignition system for an internal combustion engine comprises an ignition coil including a primary coil portion and a secondary coil portion; an exciter inducing an AC voltage in synchronism with rotation of the engine to be supplied to the primary coil portion of the ignition coil; a first semiconductor switch provided in parallel to the primary coil portion to conduct a current from the exciter therethrough; a second semiconductor switch provided on a controlled terminal of the first semiconductor switch so that the second semiconductor switch, upon conduction, causes the first semiconductor switch to be turned off so as to abruptly conduct a primary current into the primary coil portion of the ignition coil; and a signal source generating an ignition signal at the ignition position of the engine. The second semiconductor switch is provided in series to the primary coil portion of the ignition coil while the first semiconductor switch has the controlled terminal connected through the primary coil portion of the ignition coil to the exciter, whereby the first semiconductor switch is turned on by a signal applied by the exciter through the primary coil portion of the ignition coil.
    • 一种用于内燃机的电流中断型点火系统包括一个包括初级线圈部分和次级线圈部分的点火线圈; 激励器,其与所述点火线圈的所述初级线圈部分的所述发动机的旋转同步地感应出交流电压; 第一半导体开关,与所述初级线圈部分并联设置,以将来自所述激励器的电流传导通过; 设置在第一半导体开关的受控端子上的第二半导体开关,使得第二半导体开关在导通时使第一半导体开关截止,从而将初级电流突然导入点火线圈的初级线圈部分 ; 以及在发动机的点火位置产生点火信号的信号源。 第二半导体开关与点火线圈的初级线圈部分串联设置,而第一半导体开关具有通过点火线圈的初级线圈部分连接到激励器的受控端子,由此第一半导体开关被接通 由励磁机通过点火线圈的初级线圈部分施加的信号。
    • 80. 发明授权
    • Breakerless ignition system for an internal combustion engine
    • 用于内燃机的无断路点火系统
    • US3985109A
    • 1976-10-12
    • US544173
    • 1975-01-27
    • Tetsuya KondoTakeshi Watanabe
    • Tetsuya KondoTakeshi Watanabe
    • F02B53/12F02P1/08F02P9/00F02P11/02H02K21/48F02P5/04F02P1/00
    • F02P1/086F02P9/002F02P9/005
    • A breakerless ignition system for an internal combustion engine comprising an ignition power supply, a capacitance discharge type ignition circuit including a capacitance, an ignition coil and a first semiconductor switching means to discharge the capacitance through the ignition coil on the primary side thereof, and an ignition signal source to trigger the first semiconductor switching means to be turned on, the ignition system further comprising an ignition inhibiting means including a second semiconductor switching means arranged so that it periodcally prevents the ignition power from being applied to the ignition circuit when the speed of the engine becomes less than a predetermined value and also when the intake vacuum pressure of the engine exceeds a predetermined value.
    • 一种用于内燃机的无断路器点火系统,包括点火电源,包括电容的电容放电型点火电路,点火线圈和第一半导体开关装置,以通过其初级侧上的点火线圈放电电容;以及 点火信号源触发第一半导体开关装置接通,点火系统还包括点火禁止装置,该点火抑制装置包括第二半导体开关装置,该第二半导体开关装置被布置成使其周期性地防止点火功率施加到点火电路, 发动机变得小于预定值,并且当发动机的进气真空压力超过预定值时。