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1. 发明授权

US4280461A Contactless ignition system for internal combustion engines 失效
标题翻译：内燃机非接触式点火系统
公开(公告)号：US4280461A
公开(公告)日：1981-07-28
申请号：US082755
申请日：1979-10-09
申请人： Ryoichi Okuda , Tomoatsu Makino , Katsuteru Miwa
发明人： Ryoichi Okuda , Tomoatsu Makino , Katsuteru Miwa
IPC分类号： F02P7/03 , F02P3/04 , F02P3/045 , F02P3/05 , F02P5/155 , F02P5/04
CPC分类号： F02P5/155 , Y02T10/46
摘要： A contactless ignition system for internal combustion engines controls the closing angle of an engine in response to a signal derived by comparing the AC output of an alternator operated in synchronism with the rotation of the engine with the output of a bias-up circuit adapted to supply a DC bias signal which varies with the speed of the engine. The outputs of the alternator and the bias-up circuit are applied to a voltage comparison circuit and the voltage comparison circuit applies to the bias-up circuit a signal having a frequency which is proportional to the number of revolutions of engine. In response to the signal the bias-up circuit generates a signal proportional to the engine speed and this signal is converted through a non-linear circuit of the bias-up circuit into a DC bias signal whose rate of change is small at low engine speeds but increases with an increase in speed at higher engine speeds.
摘要翻译：用于内燃机的非接触式点火系统响应于通过将与发动机的旋转同步操作的交流发电机的交流输出与适于供给的偏压升压电路的输出进行比较而导致的信号来控制发动机的闭合角度直流偏置信号随着发动机的速度而变化。交流发电机和偏置上升电路的输出被施加到电压比较电路，并且电压比较电路向偏置上升电路施加具有与发动机转数成比例的频率的信号。响应于信号，偏置上升电路产生与发动机转速成比例的信号，并且该信号通过偏置上升电路的非线性电路转换为在低发动机转速下变化率小的直流偏置信号但在较高的发动机转速下随着速度的增加而增加。

2. 发明授权

US4225796A Frequency-to-current conversion circuit 失效
标题翻译：频率到电流转换电路
公开(公告)号：US4225796A
公开(公告)日：1980-09-30
申请号：US967497
申请日：1978-12-07
申请人： Tomoatsu Makino , Yoshio Hirano , Katsuteru Miwa
发明人： Tomoatsu Makino , Yoshio Hirano , Katsuteru Miwa
IPC分类号： G01D5/12 , G01R23/06 , G08C19/02 , H03K9/06 , H03K1/08
CPC分类号： G01R23/06
摘要： A frequency-to-current conversion circuit comprises a charge/discharge circuit for charging or discharging with a first constant current in synchronism with each cycle of an input pulse signal having a varying frequency, a voltage comparison circuit for detecting a predetermined voltage attained by the charge/discharge circuit at the expiration of a predetermined time interval dependent on the value of the first constant current from the beginning of the charge or discharge, and an output circuit for receiving the output signal of the voltage comparison circuit as well as the input pulse signal to generate a second constant current during the predetermined time interval in synchronism with each cycle of the input pulse signal.
摘要翻译：频率 - 电流转换电路包括用于与具有变化频率的输入脉冲信号的每个周期同步地以第一恒定电流进行充电或放电的充电/放电电路，用于检测由所述电压获得的预定电压的电压比较电路充电/放电电路根据从充电或放电开始的第一恒定电流的值预定的时间间隔期满;以及输出电路，用于接收电压比较电路的输出信号以及输入脉冲信号以在与输入脉冲信号的每个周期同步的预定时间间隔期间产生第二恒定电流。

3. 发明授权

US4411245A Internal combustion engine contactless ignition system of supply voltage variation compensation type 失效
标题翻译：内燃机非接触点火系统电源电压变化补偿型
公开(公告)号：US4411245A
公开(公告)日：1983-10-25
申请号：US304559
申请日：1981-09-22
申请人： Toshio Tanaka , Katsuteru Miwa
发明人： Toshio Tanaka , Katsuteru Miwa
IPC分类号： F02P11/00 , F02P3/04 , F02P3/045
CPC分类号： F02P3/0453
摘要： An internal combustion engine contactless ignition system of the supply voltage variation compensation type in which the length of time an ignition coil is energized is controlled by an input transistor in response to an alternating current signal synchronized with the rotation of an engine and the operating level of the input transistor is automatically shifted in response to variation of the voltage of a power source, further comprises an inverting transistor having a base connected to the collector of the input transistor, an emitter connected to one end of the power source through a common emitter resistor and a collector connected to the other end of the power source through collector resistors and a Zener diode whereby an ignition coil energization controlling power transistor is controlled through the inverting transistor.
摘要翻译：供应电压变化补偿型的内燃机非接触式点火系统，其中点火线圈通电的时间长度由输入晶体管根据与发动机的旋转同步的交流信号控制，并且操作电平输入晶体管响应于电源电压的变化自动移位，还包括反相晶体管，其基极连接到输入晶体管的集电极，发射极通过公共发射极电阻连接到电源的一端以及通过集电极电阻和齐纳二极管连接到电源的另一端的集电极，由此通过反相晶体管控制点火线圈通电控制功率晶体管。

4. 发明授权

US5483060A Optical position sensor and isolation sensor using this position sensor 失效
标题翻译：光学位置传感器和隔离传感器使用该位置传感器
公开(公告)号：US5483060A
公开(公告)日：1996-01-09
申请号：US107319
申请日：1993-08-17
申请人： Wataru Sugiura , Katsuteru Miwa
发明人： Wataru Sugiura , Katsuteru Miwa
IPC分类号： B60H1/00 , G01B11/26 , G01J1/02 , G01J1/04 , G01J1/42 , G01S3/786 , G01W1/12
CPC分类号： G01S3/7861 , G01J1/04 , G01J1/0437 , G01J1/4228 , G01J1/0209 , G01J2001/4266
摘要： In an optical position sensor capable of detecting a direction of incidence of light and intensity, this invention contemplates to make the sensor compact by reducing the number of pixels constituting light reception sensors and reducing the light reception area. To accomplish this object, a detection element portion 10 comprises a glass substrate 22, a light shading film 24 formed on a surface of the glass substrate 22 and having mutually criss-crossing slits 24a, 24b and a light reception portion 26 fixed to the back of the glass substrate 22. Unidimensional photo-diode arrays 26X, 26Y for receiving the slit beams passing through the slits 24a, 24b respectively, and a signal processing circuit 28 for scanning the photo-diode arrays 26X, 26Y and taking out light reception signals are disposed in the light reception portion 26.
摘要翻译：在能够检测光的入射方向和强度的光学位置传感器中，本发明考虑通过减少构成光接收传感器的像素的数量并减少光接收面积来使传感器紧凑化。为了实现该目的，检测元件部分10包括玻璃基板22，形成在玻璃基板22的表面上并具有相互交叉的狭缝24a，24b和固定到背面的光接收部分26的遮光膜24 分别用于接收通过狭缝24a，24b的狭缝光束的一维光电二极管阵列26X，26Y和用于扫描光电二极管阵列26X，26Y并取出光接收信号的信号处理电路28 设置在光接收部26中。

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