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    • 44. 发明授权
    • Means for detecting the integrated value of current flow, a means for detecting the value of current flow and a battery pack employing those means
    • 用于检测电流的积分值的装置,用于检测电流值的装置和使用这些装置的电池组
    • US06285164B1
    • 2001-09-04
    • US09709431
    • 2000-11-13
    • Masaru NodaTakashi TakeuchiShinji TanakaMitsunori TsuchiyaTakeshi Yamaguchi
    • Masaru NodaTakashi TakeuchiShinji TanakaMitsunori TsuchiyaTakeshi Yamaguchi
    • H02J700
    • G01R31/361G01R31/3648
    • An apparatus for detecting an integrated value of current flow. The apparatus includes an integrator having an integration capacitor, to which a current sensor voltage is inputted, for outputting an output voltage corresponding to an integrated value of the current sensor voltage, and a resetting circuit for clearing integration electric charges accumulated in the integration capacitor to reset the integrator when the output voltage has reached an upper threshold value or a lower threshold value. The apparatus also includes a counter for counting the number of resets of the integrator in an upper direction or in a lower direction, and a connection-polarity inverting circuit for inverting a polarity of inputting of the current sensor voltage to the integrator, a polarity of connecting of the integration capacitor to the integrator and a counting direction of the counter, alternatively, at a regular time interval and synchronously. An integrated value of current flow is obtained on the basis of a count value of the counter.
    • 一种用于检测电流的积分值的装置。 该装置包括具有积分电容器的积分器,输入电流传感器电压,用于输出对应于当前传感器电压的积分值的输出电压,以及复位电路,用于将积分电容器中累积的积分电荷清除为 当输出电压达到上限阈值或下限阈值时,复位积分器。 该装置还包括用于对积分器在上方向或下方的复位次数进行计数的计数器和用于将输入当前传感器电压的极性反转到积分器的连接极性反转电路,极性 积分电容器与积分器的连接以及计数器的计数方向,或者以规则的时间间隔并且同步地进行。 基于计数器的计数值获得电流的积分值。
    • 45. 发明授权
    • Optical reproducing circuit having, a binarized signal pulse
compensation circuit
    • 具有二值化信号脉冲补偿电路的光学再现电路
    • US5548570A
    • 1996-08-20
    • US547313
    • 1995-10-24
    • Hiroshige HirajimaTakeshi YamaguchiHiroshi Fuji
    • Hiroshige HirajimaTakeshi YamaguchiHiroshi Fuji
    • G11B7/00G11B7/005G11B20/10G11B20/14G11B27/30H03H15/00H03H17/00H03H21/00H04B3/04H04L25/03H04L25/06
    • G11B20/10212G11B20/1403G11B27/3027
    • An information reproducing circuit for reproducing digital information from a signal read by scanning an optical disk comprises an HPF 1 inputting the read signal and removing a low-frequency component from the input signal for outputting the same, an adder 2 inputting the signal outputted from the HPF 1 and adding a feedback signal having an amplitude matching with half that of the input signal to the input signal for outputting the same, a comparator 3 inputting the signal outputted from the adder 2 and converting the input signal to a binarized signal through a threshold value signal for outputting the binarized signal, a compensation circuit 5 inputting the binarized signal outputted from the comparator 3 and outputting the input signal while compensating the same through a compensation signal for compensating the low-frequency component of the read signal, and an LPF 6 inputting the signal outputted from the circuit 5 and removing a high-frequency component from the input signal for supplying the same to the adder 2 as the feedback signal.
    • 用于从通过扫描光盘读取的信号再现数字信息的信息再现电路包括输入读取信号的HPF 1和从输入信号中输出低频分量,输入从 HPF 1,并将具有与输入信号的一半幅度匹配的幅度匹配的反馈信号输入到输出信号以输出;比较器3,输入从加法器2输出的信号,并通过阈值将输入信号转换为二值化信号 输出二值化信号的值信号;补偿电路5,输入从比较器3输出的二值化信号,并通过用于补偿读出信号的低频分量的补偿信号补偿该输入信号并输出​​该输入信号;以及LPF6 输入从电路5输出的信号并从输入信号f去除高频分量 或将其提供给加法器2作为反馈信号。
    • 49. 发明授权
    • Optical recording track access driving apparatus
    • 光记录轨道存取驱动装置
    • US5335214A
    • 1994-08-02
    • US923745
    • 1992-07-28
    • Hirotsugu MatobaMasaru NomuraTakeshi Yamaguchi
    • Hirotsugu MatobaMasaru NomuraTakeshi Yamaguchi
    • G11B7/085G11B21/08G11B7/09
    • G11B7/08541
    • An optical recording medium driving apparatus has the first high-pass filter for outputting a low frequency component removed signal by removing a low frequency component from a reproduction signal varying depending on a reflected light beam from the optical recording medium. The low frequency component removed signal changes due to transient response just after an access operation starts. Zero voltage is inputted to the second high-pass filter during a tracking operation while a voltage having a negative polarity which is substantially the same amplitude as the AC component of the low frequency component removed signal is inputted to the second high-pass filter. The first high-pass filter has the same time constant as the second high-pass filter. Just after the access operation starts, the negative voltage has the same transient response as the output of the first high-pass filter. The output of the first high-pass filter is compared to the output of the second high-pass filter in order to have a binary signal of the binary logic condition. A land is discriminated from a groove according to the binary signal, thereby enabling to access a target track in accuracy.
    • 光记录介质驱动装置具有第一高通滤波器,用于通过从根据来自光记录介质的反射光束变化的再现信号中去除低频分量来输出低频分量去除信号。 低频分量消除信号由于在访问操作开始后的瞬态响应而改变。 在跟踪操作期间将零电压输入到第二高通滤波器,而具有与低频分量去除信号的AC分量基本上相同幅度的负极性的电压被输入到第二高通滤波器。 第一高通滤波器具有与第二高通滤波器相同的时间常数。 在访问操作开始之后,负电压具有与第一高通滤波器的输出相同的瞬态响应。 将第一高通滤波器的输出与第二高通滤波器的输出进行比较,以便具有二进制逻辑条件的二进制信号。 根据二进制信号区域与凹槽区分开,从而能够准确地访问目标轨道。