公开(公告)号：US4882538A

公开(公告)日：1989-11-21

申请号：US92459

申请日：1987-09-03

申请人： Hiromitsu Sato ,  Shinichi Kubota ,  Atsushi Totsune ,  Masahiko Asakura

发明人： Hiromitsu Sato ,  Shinichi Kubota ,  Atsushi Totsune ,  Masahiko Asakura

IPC分类号： G01R15/20 ,  G01R19/00 ,  H02J7/16

CPC分类号： G01R15/202 ,  H02J7/16 ,  Y02T10/7005

摘要： A current detecting device for detecting current flowing in a first electric wire arranged close to a second electric wire having a portion extending in a predetermined direction. The device comprises: a portion of the first electric wire extending at right angles to the second electric wire; a magnetic core arranged around the above portion of the first electric wire, the magnetic core having an axis thereof extending at right angles to the above portion of the second electric wire; and a magnetic-to-electric transducer associated with the magnetic core for generating an electric signal indicative of the intensity of a magnetic field generated around the above portion of the first electric wire by current flowing in the first electric wire.

摘要翻译： 一种用于检测在靠近具有沿预定方向延伸的部分的第二电线布置的第一电线中流动的电流的电流检测装置。 该装置包括：第一电线的一部分与第二电线成直角延伸; 磁芯，其布置在所述第一电线的上述部分周围，所述磁芯具有与所述第二电线的上述部分成直角延伸的轴线; 以及与磁芯相关联的磁 - 电换能器，用于通过在第一电线中流动的电流产生指示在第一电线的上述部分周围产生的磁场的强度的电信号。

公开(公告)号：US4771755A

公开(公告)日：1988-09-20

申请号：US5644

申请日：1987-01-21

申请人： Masahiko Asakura ,  Hiroshi Hasebe ,  Shinichi Kubota ,  Yoshitaka Hibino ,  Koji Kajita ,  Atsushi Totsune

发明人： Masahiko Asakura ,  Hiroshi Hasebe ,  Shinichi Kubota ,  Yoshitaka Hibino ,  Koji Kajita ,  Atsushi Totsune

IPC分类号： F02D35/00 ,  F02D41/14 ,  F02D41/20 ,  F02D41/22

CPC分类号： F02D35/003 ,  F02D41/1495 ,  F02D41/20 ,  F02D2011/102 ,  F02D2041/2058 ,  F02D2041/2093 ,  F02D2041/228

摘要： A method of detecting abnormality in an air-fuel ratio control system for an internal combustion engine, the air-fuel ratio control system having a proportional control valve arranged in an air supply passage for supplying secondary air therethrough to the engine and controlled in response to an output signal from an oxygen concentration sensor arranged in an exhaust system of the engine in a manner such that its valve opening varies in proportion to the magnitude of driving current supplied thereto. A circuit is provided which includes a first transistor, the proportional control valve, and a second transistor arranged in the order mentioned and serially connected with each other between a power source for supplying a predetermined voltage and ground. A value of voltage at a predetermined location in said circuit is sensed while the first and second transistors are in predetermined states of conduction and non-conduction. It is determined whether there is abnormality in the air-fuel ratio control system, on the basis of the sensed voltage value.

摘要翻译： 一种检测内燃机的空燃比控制系统的异常的方法，所述空燃比控制系统具有比例控制阀，该比例控制阀配置在空气供给通路中，用于将二次空气供给到发动机，并响应于 来自设置在发动机的排气系统中的氧浓度传感器的输出信号，使得其开度与提供给其的驱动电流的大小成比例地变化。 提供了一种电路，其包括第一晶体管，比例控制阀和以所述顺序布置的第二晶体管，并且在用于提供预定电压和地之间的电源之间彼此串联连接。 当第一和第二晶体管处于预定的导通和非导通状态时，感测在所述电路中的预定位置处的电压值。 基于感测的电压值来确定空燃比控制系统中是否存在异常。

公开(公告)号：US4870586A

公开(公告)日：1989-09-26

申请号：US202862

申请日：1988-06-06

申请人： Masahiko Asakura ,  Takanori Shiina ,  Masahiro Ueda ,  Shinichi Kubota ,  Tomohiko Kawanabe ,  Noritaka Kushida ,  Minoru Muroya

发明人： Masahiko Asakura ,  Takanori Shiina ,  Masahiro Ueda ,  Shinichi Kubota ,  Tomohiko Kawanabe ,  Noritaka Kushida ,  Minoru Muroya

IPC分类号： F02D35/00 ,  F02D41/14

CPC分类号： F02D35/003 ,  F02D41/1475 ,  F02D41/1456

摘要： An air-fuel ratio control system for an internal combustion engine mounted on a vehicle with a transmission, including an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas, effects a feedback control of the air-fuel ratio of mixture to be supplied to the engine toward a target value determined on the basis of various parameters of the engine operation and corrected in response to a magnitude of atmospheric pressure, so that the higher a shift position of the transmission gear is, the leaner the target air-fuel ratio becomes. Thus, the fuel consumption in a light load operating condition of the engine is decreased and the driveability of the vehicle is improved.

摘要翻译： 一种用于安装在具有变速器的车辆上的内燃机的空燃比控制系统，包括氧浓度传感器，其产生与废气的氧浓度基本成比例的输出信号，其实现空气的反馈控制 - 将要向发动机提供的混合物的燃料比达到基于发动机运转的各种参数确定的目标值并且响应于大气压力的大小而被校正，使得变速齿轮的换档位置越高， 目标空燃比变得越来越细。 因此，发动机的轻负载运转状态下的燃料消耗减少，车辆的驾驶性提高。

公开(公告)号：US4694803A

公开(公告)日：1987-09-22

申请号：US819454

申请日：1986-03-10

申请人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Masahiro Ueda ,  Shinichi Kubota ,  Noritaka Kushida ,  Yukihiro Matsumoto

发明人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Masahiro Ueda ,  Shinichi Kubota ,  Noritaka Kushida ,  Yukihiro Matsumoto

IPC分类号： F02B1/02 ,  F02D41/14 ,  F02B3/00

CPC分类号： F02D41/1487 ,  F02B1/02

摘要： An air-fuel ratio control system for an internal combustion engine, including an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas, effects a feedback control of the air-fuel ratio of mixture to be supplied to the engine toward a target value determined on the basis of various parameters of the engine operation and corrected in response to a magnitude of atmospheric pressure, so that the target air-fuel ratio is made lean as the magnitude of the atmospheric pressure decreases. Thus, the reduction of the engine output power and the increase of the fuel comsumption which have been encountered in conventional systems are prevented.

摘要翻译： 用于内燃机的空燃比控制系统包括氧浓度传感器，该氧浓度传感器产生与废气氧浓度基本成比例的输出信号，其混合物的空燃比反馈控制为 提供给发动机朝向基于发动机操作的各种参数确定的目标值并且响应于大气压力的大小而被校正的目标值，使得当大气压力的大小减小时，使目标空燃比变为稀薄。 因此，防止在常规系统中遇到的发动机输出功率的降低和燃料消耗的增加。

公开(公告)号：US08729971B2

公开(公告)日：2014-05-20

申请号：US13328046

申请日：2011-12-16

申请人： Shinichi Kubota

发明人： Shinichi Kubota

IPC分类号： H03B5/36

CPC分类号： H03B5/364 ,  H03B5/06 ,  H03B2200/0012 ,  H03B2200/0062 ,  H03B2200/0082 ,  H03B2200/0094 ,  H03L5/00

摘要： An oscillator includes a reference voltage generator, an oscillation element configured to oscillate by either a drive voltage or a drive current and output an oscillation signal, a peak hold element configured to detect a peak level of the oscillation signal for output; and a controller configured to increase or decrease the drive voltage or drive current in accordance with the reference voltage generated by the reference voltage generator and the peak level output from the peak hold element.

摘要翻译： 振荡器包括参考电压发生器，被配置为通过驱动电压或驱动电流振荡并输出振荡信号的振荡元件，配置成检测振荡信号的峰值电平以输出的峰值保持元件; 以及控制器，被配置为根据由参考电压发生器产生的参考电压和从峰值保持元件输出的峰值电平来增大或减小驱动电压或驱动电流。

公开(公告)号：US20080181273A1

公开(公告)日：2008-07-31

申请号：US12076518

申请日：2008-03-19

申请人： Shinichi Kubota

发明人： Shinichi Kubota

IPC分类号： H01S5/06

CPC分类号： H01S5/042

摘要： A disclosed laser diode driving circuit causes a laser diode to emit light by varying a current value of a current source in accordance with a control signal input externally and supplying a current that is the same as or proportional to the current value to the laser diode. The driving circuit includes correction circuitry for generating a reference forward voltage as a reference for the laser diode in accordance with a predetermined driving current for driving the laser diode, generating a forward voltage for the laser diode in accordance with the predetermined driving current, and correcting a current supplied to the laser diode so that the forward voltage becomes the same as the reference forward voltage.

公开(公告)号：US07369590B2

公开(公告)日：2008-05-06

申请号：US10947377

申请日：2004-09-23

申请人： Shinichi Kubota

发明人： Shinichi Kubota

IPC分类号： H03K171/78

CPC分类号： H01S5/042

摘要： A disclosed laser diode driving circuit causes a laser diode to emit light by varying a current value of a current source in accordance with a control signal input externally and supplying a current that is the same as or proportional to the current value to the laser diode. The driving circuit includes correction circuitry for generating a reference forward voltage as a reference for the laser diode in accordance with a predetermined driving current for driving the laser diode, generating a forward voltage for the laser diode in accordance with the predetermined driving current, and correcting a current supplied to the laser diode so that the forward voltage becomes the same as the reference forward voltage.

摘要翻译： 所公开的激光二极管驱动电路使得激光二极管根据外部输入的控制信号改变电流源的电流值并向激光二极管提供与电流值相同或成比例的电流来发光。 驱动电路包括用于根据用于驱动激光二极管的预定驱动电流产生用于激光二极管的基准的参考正向电压的校正电路，根据预定的驱动电流产生用于激光二极管的正向电压，以及校正 提供给激光二极管的电流使得正向电压变得与参考正向电压相同。

公开(公告)号：US5815025A

公开(公告)日：1998-09-29

申请号：US546121

申请日：1995-10-20

申请人： Shinichi Kubota

发明人： Shinichi Kubota

IPC分类号： B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G06K15/12 ,  H04N1/23 ,  H04N1/401 ,  H01L31/00

CPC分类号： G06K15/1247 ,  B41J2/45 ,  G06K15/1242 ,  H04N1/4015

摘要： An intensity controlling circuit device can correct variation in intensity of light beams, due to tolerance occurred in each of a plurality of LED-array chips, emitted by LEDs provided in each of the LED-array chips. The intensity controlling circuit device is connected to at least one LED-array chip comprising a plurality of LEDs and slave transistors corresponding to each of the LEDs. The intensity controlling circuit device comprises an intensity controlling circuit connected to the respective LED-array chip. The intensity controlling circuit comprises a first transistor provided between a power source and a constant current generating unit so as to supply a current to the LED-array chip, and an intensity adjusting unit having a second transistor connected to the first transistor in parallel and a controlling unit for controlling the on/off state of the second transistor. An output of the intensity controlling circuit is connected to each of the slave transistors provided in the LED-array chip, and the second transistor is turned on/off by the controlling unit so that a current flowing in each of the LEDs is adjusted to a predetermined value.

摘要翻译： 强度控制电路装置可以通过在每个LED阵列芯片中设置的LED发射的多个LED阵列芯片中的每一个发生容差来校正光束的强度变化。 强度控制电路装置连接至至少一个LED阵列芯片，其包括与每个LED对应的多个LED和从属晶体管。 强度控制电路装置包括连接到各个LED阵列芯片的强度控制电路。 强度控制电路包括设置在电源和恒流发生单元之间以便向LED阵列芯片提供电流的第一晶体管，以及具有并联连接到第一晶体管的第二晶体管的强度调节单元， 控制单元，用于控制第二晶体管的开/关状态。 强度控制电路的输出端连接到设置在LED阵列芯片中的每个从属晶体管，并且第二晶体管由控制单元导通/截止，使得在每个LED中流动的电流被调整为 预定值。

公开(公告)号：US09746436B2

公开(公告)日：2017-08-29

申请号：US14608596

申请日：2015-01-29

申请人： Shinichi Kubota

发明人： Shinichi Kubota

IPC分类号： G01N27/04

CPC分类号： G01N27/048

摘要： A detecting device includes a substrate having a cavity portion in the surface thereof; a thin-film layer formed over the cavity portion; an on-thin-film layer pattern formed on the thin-film layer; an on-substrate pattern formed on the substrate; and a first terminal, a second terminal, a third terminal, and a fourth terminal. A resistance between the first terminal and the second terminal includes a resistance of the on-thin-film layer pattern, a resistance between the third terminal and the fourth terminal includes the resistance of the on-thin-film layer pattern and a resistance of the on-substrate pattern, and the resistance between the first terminal and the second terminal is less than the resistance between the third terminal and the fourth terminal.

公开(公告)号：US20080259979A1

公开(公告)日：2008-10-23

申请号：US12013548

申请日：2008-01-14

申请人： Shinichi Kubota

发明人： Shinichi Kubota

IPC分类号： H01S3/00

CPC分类号： H01S5/042 ,  H01S5/06808

摘要： A laser diode driving circuit capable of providing a suitable output current to a laser diode is disclosed. The laser diode driving circuit includes a current supply, a first pseudo laser diode, a second pseudo laser diode, and an output current mirror circuit. An input current provided by the current supply is output through the output current mirror circuit to the laser diode. By making the characteristic of each of the first and second pseudo laser diodes substantially equal to the characteristic of the laser diode, the non-linearity between the input current and the output current is compensated.

摘要翻译： 公开了一种能够向激光二极管提供合适的输出电流的激光二极管驱动电路。 激光二极管驱动电路包括电流源，第一伪激光二极管，第二伪激光二极管和输出电流镜电路。 由电流源提供的输入电流通过输出电流镜电路输出到激光二极管。 通过使第一和第二伪激光二极管的每一个的特性基本上等于激光二极管的特性，补偿输入电流与输出电流之间的非线性。