公开(公告)号：US5051625A

公开(公告)日：1991-09-24

申请号：US427337

申请日：1989-10-27

申请人： Hiroshi Ikeda ,  Takashi Kimura ,  Norio Fujiki

发明人： Hiroshi Ikeda ,  Takashi Kimura ,  Norio Fujiki

IPC分类号： H03K19/003

CPC分类号： H03K19/00361

摘要： An output buffer circuit, in which a pair of current sources is connected to positive and negative power sources, and a first inverter having input and output terminals, is arranged between the current sources, in which a second inverter having input and output terminals, is connected to the output terminal of the first inverter, the second inverter including at least one of P-channel and N-channel MOSFETs, and a capacitor is connected between the input and output terminals of the second inverter.

摘要翻译： 一种输出缓冲电路，其中一对电流源连接到正电源和负电源，以及具有输入和输出端的第一反相器被布置在具有输入和输出端的第二反相器的电流源之间 连接到第一反相器的输出端子，第二反相器包括P沟道和N沟道MOSFET中的至少一个，并且电容器连接在第二反相器的输入和输出端子之间。

公开(公告)号：US5014155A

公开(公告)日：1991-05-07

申请号：US365466

申请日：1989-06-13

申请人： Noriyuki Abe ,  Takashi Kimura ,  Norio Fujiki

发明人： Noriyuki Abe ,  Takashi Kimura ,  Norio Fujiki

IPC分类号： H02H9/04 ,  H03K5/1252

CPC分类号： H02H9/046 ,  H03K5/1252

摘要： An input protection circuit for an electronic circuit includes a switching circuit operable between an ON state and an OFF state for generating an input for the electronic circuit, a first circuit responsive to an excess level of input for forming a clamping circuit across a first resistor for shunting an excess level input, a second circuit monitoring an input from the switching means for detecting a state of the switching circuit for producing an ON/OFF signal depending upon the detected state of the switching circuit, the second circuit including a second resistor which forms a series circuit with the first resistor and the switching circuits while the switching circuits is in an ON state. The switching circuits is operated to an ON position for establishing the series circuit for setting the level of the input at a minimum level and to an OFF position for opening the series circuit for setting the level of the input at a maximum level. The second circuit is set at a threshold level to be compared with the input level for detecting the state of the switching circuit, the threshold level being set at a level higher than the minimum level and lower than the maximum level so as to assure detection of the state of the switching circuits.

公开(公告)号：US5168463A

公开(公告)日：1992-12-01

申请号：US314004

申请日：1989-02-23

申请人： Hiroshi Ikeda ,  Norio Fujiki ,  Masaki Hirota

发明人： Hiroshi Ikeda ,  Norio Fujiki ,  Masaki Hirota

IPC分类号： G07C5/00 ,  G05B9/02 ,  G06Q50/00 ,  G06Q50/30 ,  G07C5/08 ,  G11C19/28

CPC分类号： G07C5/0841 ,  G11C19/28

摘要： An apparatus for storing digital data includes a clock pulse source and plural serial shift register stages storing data bits. Digital data signals, each having plural databits, are coupled to and shifted in the stages in synchronization with the clock pulses. Data stored in the memory stages stages are held in a non-erasable memory unit provided for each stage while an emergency causing a failure of a power supply of the shift register occurs.

公开(公告)号：US4756231A

公开(公告)日：1988-07-12

申请号：US894040

申请日：1986-08-07

申请人： Michio Kobayashi ,  Jun Kubo ,  Norio Fujiki

发明人： Michio Kobayashi ,  Jun Kubo ,  Norio Fujiki

IPC分类号： B60T13/52 ,  B60T13/44 ,  B60T13/573 ,  B60T13/66 ,  B60T17/22 ,  F15B13/04

CPC分类号： B60T17/221 ,  B60T13/44 ,  B60T13/573

摘要： An input pressure detecting device is arranged in an input side of a pneumatic brake booster, which comprises an elastic member having a given portion which expands when a pressure is applied to the elastic member, a pressure sensor for issuing, upon receiving a pressure, a signal representative of the intensity of the pressure applied thereto, and an axially movable piston intimately disposed between the given portion of the elastic member and the pressure sensor. Upon application of force to the elastic member due to depression of the brake pedal, the elastic member is compressed causing the given portion to expand and thus applying a corresponding but small pressure to the pressure sensor through the piston.

摘要翻译： 输入压力检测装置布置在气动制动助力器的输入侧，该气动制动助力器包括一个弹性构件，该弹性构件具有当向弹性构件施加压力时膨胀的给定部分;压力传感器，用于在接收压力时发出 代表施加到其上的压力的强度的信号，以及紧密地设置在弹性构件的给定部分和压力传感器之间的可轴向移动的活塞。 当由于制动踏板的下压而向弹性构件施加力时，弹性构件被压缩，使得给定的部分膨胀，从而通过活塞向压力传感器施加相应而较小的压力。

公开(公告)号：US4180816A

公开(公告)日：1979-12-25

申请号：US937763

申请日：1978-08-29

申请人： Hiroshi Endo ,  Norio Fujiki

发明人： Hiroshi Endo ,  Norio Fujiki

IPC分类号： G01S7/40

CPC分类号： G01S7/40

摘要： A testing circuit for a radar-operated vehicle safety assurance system includes a test signal generator for generating an artificial intermediate frequency return signal. The radar system is switched on a manual command signal from the normal operating mode to an under-test mode to accept the artificial signal to determine the speed of the vehicle relative to a hypothetical target and the instantaneous value of the distance to the hypothetical target. The radar system includes a vehicle roadway speed sensor which normally supplies the system with the instantaneous speed value of the vehicle. When the system is switched to the under-test mode, a signal indicative of a predetermined vehicle road speed is applied to the radar to determine the safety distance to the hypothetical target. When the instantaneous value of the distance to the hypothetical target corresponds to the safety distance, an alarm signal is delivered from the radar system. This signal is checked to see if it occurs within a preselected time interval so as to ensure that the radar system functions properly.

摘要翻译： 用于雷达操作的车辆安全保证系统的测试电路包括用于产生人造中频返回信号的测试信号发生器。 雷达系统将手动命令信号从正常操作模式切换到测试模式，以接受人造信号，以确定车辆相对于假想目标的速度和与假想目标的距离的瞬时值。 雷达系统包括车辆道路速度传感器，其通常为车辆提供瞬时速度值。 当系统切换到欠测试模式时，将指示预定车辆道路速度的信号施加到雷达以确定到假想目标的安全距离。 当与假想目标的距离的瞬时值对应于安全距离时，报警信号从雷达系统传送。 检查该信号是否发生在预选的时间间隔内，以确保雷达系统正常工作。

公开(公告)号：US4866376A

公开(公告)日：1989-09-12

申请号：US55615

申请日：1987-05-29

申请人： Norio Fujiki ,  Masahiro Ishikawa ,  Masao Kawagishi ,  Takatoshi Hayashi

发明人： Norio Fujiki ,  Masahiro Ishikawa ,  Masao Kawagishi ,  Takatoshi Hayashi

IPC分类号： G01R5/16 ,  G01P3/48 ,  G01P21/02 ,  G01R7/06

CPC分类号： G01R7/06 ,  G01P21/02 ,  G01P3/48

摘要： An apparatus for testing a cross-coil instrument having a pointer, a sensor for sensing a condition to produce a sensor signal indicative of the sensed condition, and a converter coupled to the sensor for converting the sensor signal to a deflection of the pointer. The apparatus comprises a fault detector coupled to the sensor for detecting a disconnection fault to produce a command signal, and a test signal generator responsive to the command signal for generating a predetermined test signal to the converter, thereby moving the pointer to a predetermined position. The operation accuracy of the cross-coil instrument may be checked from the difference between the actual and predetermined pointer positions when a connector provided in a signal line between the sensor and the fault detector is pulled out.

摘要翻译： 一种用于测试具有指示器的交叉线圈仪器的装置，用于感测产生指示感测状态的传感器信号的状态的传感器，以及耦合到传感器的转换器，用于将传感器信号转换成指示器的偏转。 该装置包括耦合到传感器的故障检测器，用于检测断路故障以产生指令信号，以及响应于命令信号的测试信号发生器，用于向转换器产生预定的测试信号，从而将指针移动到预定位置。 当提供在传感器和故障检测器之间的信号线中的连接器被拉出时，可以从实际和预定指针位置之间的差异来检查交叉线圈器械的操作精度。

公开(公告)号：US4146891A

公开(公告)日：1979-03-27

申请号：US815297

申请日：1977-07-13

申请人： Norio Fujiki ,  Yoshiki Masuno

发明人： Norio Fujiki ,  Yoshiki Masuno

IPC分类号： B60R21/00 ,  G01S13/93 ,  G08G1/16 ,  G01S9/04

CPC分类号： G01S13/931 ,  G08G1/166 ,  G01S2013/9346

摘要： A vehicle collision preventing apparatus determines the danger by an output of a radar for detecting the distance to an obstacle and the relative velocity in a danger determining circuit wherein the distance to the obstacle and the relative velocity at the present are estimated from the data given before disappearing the data of the radar by an estimate arithmetic circuit when a signal reflecting from the obstacle reduces to be incapable of detecting the obstacle by the radar.

公开(公告)号：US4072945A

公开(公告)日：1978-02-07

申请号：US746742

申请日：1976-12-02

申请人： Masaaki Katsumata ,  Norio Fujiki

发明人： Masaaki Katsumata ,  Norio Fujiki

IPC分类号： B60R21/00 ,  G01P15/00 ,  G01S1/16 ,  G01S13/02 ,  G01S13/91 ,  G01S13/93 ,  G08B25/00 ,  G08B25/04 ,  G01S9/02 ,  B60T17/18

CPC分类号： G01S13/02 ,  G01S1/16 ,  G01S13/91 ,  G01S13/931 ,  B60T2201/022 ,  G01S2013/9346 ,  G01S2013/9353 ,  G01S2013/9357

摘要： A radar-operated collision avoidance system for a roadway vehicle comprises a radar device for sensing the vehicle speed relative to an object and its distance thereto to decide whether the vehicle is approaching the object at a dangerously high speed. A minimum allowable distance represented by a digital code is stored in a memory location within an array of rows and columns and read out in response to a sensed vehicle speed relative to the roadway and to a sensed magnitude of steering movement. The minimum allowable distance is compared with the distance sensed by the radar to determine that the decision is valid only when the latter is smaller than the former.

摘要翻译： 用于道路车辆的雷达操作的碰撞避免系统包括用于感测相对于物体的车速及其距离的雷达装置，以确定车辆是否以危险的高速接近物体。 由数字代码表示的最小可允许距离存储在行和列阵列内的存储器位置中，并响应于相对于道路的感测车速以及感测到的转向运动的大小而读出。 将最小允许距离与雷达感测到的距离进行比较，以确定仅当后者小于前者时，该决定才有效。

公开(公告)号：US4016566A

公开(公告)日：1977-04-05

申请号：US643128

申请日：1975-12-22

申请人： Norio Fujiki

发明人： Norio Fujiki

IPC分类号： B60R21/00 ,  G01S13/18 ,  G01S13/93 ,  G01S9/04

CPC分类号： G01S13/18 ,  G01S13/931 ,  G01S2013/9346 ,  G01S2013/9353 ,  G01S2013/9367 ,  G01S2013/9375

摘要： An automotive radar is provided with a device for sensing the location of the entry and exit ways of a zone as the vehicle passes therethrough to reduce the detectable range of the radar upon the vehicle entering the zone so that false targets within the range-controlled zone are discriminated from valid targets. The device restores the range upon the vehicle leaving the zone to normal range.

摘要翻译： 汽车雷达设置有用于在车辆通过其中时感测区域的进入和离开路径的位置的设备，以减少车辆进入区域时雷达的可检测范围，使得范围控制区域内的虚拟目标 被歧视与有效的目标。 该装置恢复车辆离开该区域到正常范围的范围。

公开(公告)号：US4953095A

公开(公告)日：1990-08-28

申请号：US103044

申请日：1987-09-30

申请人： Masahiro Ishikawa ,  Norio Fujiki ,  Yukio Hiramoto ,  Yoichiro Tanaka

发明人： Masahiro Ishikawa ,  Norio Fujiki ,  Yukio Hiramoto ,  Yoichiro Tanaka

IPC分类号： G01P3/489 ,  G01R23/10

CPC分类号： G01R23/10 ,  G01P3/489

摘要： An apparatus for measuring the frequency of a pulse train signal and method therefor applicable to a speedometer of a vehicle are disclosed in which a count value C of at least one counter which counts number of pulses in the pulse train signal for predetermined counting intervals of time .DELTA.T (=T/n, wherein T denotes a frequency measuring time interval and n denotes a calculation constant) is updated to a value related to the count value for each predetermined counting interval of time .DELTA.T and stored and outputted for each predetermined counting interval of time .DELTA.T so that the same or better performance as that using a stagger ring method can be achieved. The value is expressed by (C-C/.alpha.) in a first preferred embodiment (wherein .alpha. denotes the calculation constant preferably equal to n), by (C-C.times.m/.alpha.+D) in a second preferred embodiment (wherein m denotes the number of counters and D denotes the latest count values of the m counters during .DELTA.T at the time of update), by (C-M.sub.1 .times.C/.alpha.+M.sub.2 D) in a third preferred embodiment (wherein M.sub.1 and M.sub.2 denotes values determined according to a change rate of the count value C of the counter with respect to time and D denotes the latest count value of the counter for .DELTA.T at the time of update), and by (C-C/M) in a fourth preferred embodiment (wherein M denotes a value determined according to a change rate of the count value C of the counter with respect to time).

摘要翻译： 公开了一种用于测量脉冲序列信号的频率的装置及其适用于车辆的速度计的方法，其中至少一个计数器的计数值C计数脉冲序列信号中的脉冲数，用于预定的时间间隔 DELTA T（= T / n，其中T表示频率测量时间间隔，n表示计算常数）被更新为与每个预定计数间隔DELTA T相关的计数值的值，并且对于每个预定计数而被存储和输出 时间间隔DELTA T，使得可以实现与使用交错环方法相同或更好的性能。 在第二优选实施方案中，（C-Cxm /α+ D）在第一优选实施方案中（其中α表示计算常数优选等于n），该值由（C / C×α）表示（其中m表示 计数器和D表示在更新时的DELTA T期间的m个计数器的最新计数值），在第三优选实施例中由（C-M1xC /α+ M2D）表示（其中M1和M2表示根据变化确定的值 计数器的计数值C相对于时间的速率，D表示更新时的DELTA T的计数器的最新计数值），并且在第四优选实施例中（CC / M）（其中M表示 根据计数器的计数值C相对于时间的变化率确定的值）。