Apparatus for generating magnetic field varying in response to an
information signal
    1.
    发明授权
    Apparatus for generating magnetic field varying in response to an information signal 失效
    用于在信号信号响应中产生磁场变化的装置

    公开(公告)号:US5111441A

    公开(公告)日:1992-05-05

    申请号:US650607

    申请日:1991-02-05

    CPC分类号: G11B11/10508 G11B11/10576

    摘要: An apparatus for generating a magnetic field varying in response to an information signal, which comprises a base plate made of electrical insulating material, a magnetic core mounted on one of opposite surfaces of the base plate, the magnetic core having a central leg portion extending through a hole formed in the base plate so as to cause its end face to appear on the other of the opposite surfaces of the base plate, a coil member wound on the central leg portion of the magnetic core to be supplied with a current varying in response to the information signal, and a capacitance detecting electrode formed with a thin conductive layer mounted on the other of the opposite surfaces of the base plate to be opposite to a recording medium having a conductive layer, the capacitance detecting electrode being provided with a cutout for restraining eddy current loss caused in the capacitance detecting electrode.

    Magnetic head position control apparatus including drive means
responsive to a summed signal from a capacitance detection electrode
and a disk size detector means
    2.
    发明授权
    Magnetic head position control apparatus including drive means responsive to a summed signal from a capacitance detection electrode and a disk size detector means 失效
    磁头位置控制装置包括响应于来自电容检测电极和盘尺寸检测器装置的求和信号的驱动装置

    公开(公告)号:US5168483A

    公开(公告)日:1992-12-01

    申请号:US772348

    申请日:1991-10-07

    IPC分类号: G11B11/105 G11B21/21

    CPC分类号: G11B11/10576 G11B21/21

    摘要: A magnetic head position control apparatus for driving the magnetic head of a disc recording apparatus toward or away from the recording surface of a magneto-optical disc to effect position control of the magnetic head detects changes in the distance between the magnetic head and the magneto-optical disc by detecting changes in the capacitance between a capacitance detection electrode mounted on the magnetic head and a surface of the magnetic disc and generates a voltage to control the position of the magnetic head for maintaining it at a constant predetermined distance from the magneto-optical disc. Stray capacitance between the disc and the disc recording apparatus is based on the size of the disc, which is either detected directly or obtained from pre-recorded data on the disc, and is compensated by adding a bias voltage to the voltage generated using the capacitance detection electrode to provide further control of the position of the magnetic head.

    摘要翻译: 一种磁头位置控制装置,用于驱动盘记录装置的磁头朝向或远离磁光盘的记录表面以实现磁头的位置控制,以检测磁头和磁光盘之间的距离的变化, 通过检测安装在磁头上的电容检测电极与磁盘的表面之间的电容的变化而产生电压,以产生一个电压,以控制磁头的位置,使其保持与磁光的恒定的预定距离 光盘。 盘和盘记录装置之间的杂散电容基于盘的大小,其可以直接检测或从盘上的预先记录的数据获得,并且通过向使用电容产生的电压添加偏置电压来补偿 检测电极,以进一步控制磁头的位置。

    Control system for internal combustion engine
    4.
    发明授权
    Control system for internal combustion engine 有权
    内燃机控制系统

    公开(公告)号:US09562489B2

    公开(公告)日:2017-02-07

    申请号:US14359648

    申请日:2011-11-22

    摘要: An object of the invention is to provide a technology pertaining to a control system for an internal combustion engine using CNG to allow an internal combustion engine to operate appropriately even when properties of CNG change. To achieve the object, in the control system for an internal combustion engine using compressed natural gas according to the invention, when air-fuel ratio feedback control that corrects the fuel injection quantity in such a way as to make the air-fuel ratio of the air-fuel mixture burned in the internal combustion engine substantially equal to a target air-fuel ratio, a control parameter relating to a condition of combustion of the air-fuel mixture is corrected based on the magnitude of the correction value in the air-fuel ratio feedback control.

    摘要翻译: 本发明的目的是提供一种涉及使用CNG的内燃机的控制系统的技术,以允许内燃机即使在CNG的性质改变时也适当地运行。 为了实现该目的,在根据本发明的使用压缩天然气的内燃机的控制系统中,当空燃比反馈控制以这样的方式校正燃料喷射量时,使空燃比 基本上等于目标空燃比在内燃机中燃烧的空气燃料混合物,基于空燃比校正值的大小来校正与空燃混合物的燃烧条件有关的控制参数 比率反馈控制。

    CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制系统

    公开(公告)号:US20140303876A1

    公开(公告)日:2014-10-09

    申请号:US14359648

    申请日:2011-11-22

    IPC分类号: F02D41/30

    摘要: An object of the invention is to provide a technology pertaining to a control system for an internal combustion engine using CNG to allow an internal combustion engine to operate appropriately even when properties of CNG change. To achieve the object, in the control system for an internal combustion engine using compressed natural gas according to the invention, when air-fuel ratio feedback control that corrects the fuel injection quantity in such a way as to make the air-fuel ratio of the air-fuel mixture burned in the internal combustion engine substantially equal to a target air-fuel ratio, a control parameter relating to a condition of combustion of the air-fuel mixture is corrected based on the magnitude of the correction value in the air-fuel ratio feedback control.

    摘要翻译: 本发明的目的是提供一种涉及使用CNG的内燃机的控制系统的技术,以允许内燃机即使在CNG的性质改变时也适当地运行。 为了实现该目的,在根据本发明的使用压缩天然气的内燃机的控制系统中,当空燃比反馈控制以这样的方式校正燃料喷射量时,使空燃比 基本上等于目标空燃比在内燃机中燃烧的空气燃料混合物,基于空燃比校正值的大小来校正与空燃混合物的燃烧条件有关的控制参数 比率反馈控制。

    Method for detecting fully-charged state of rechargeable battery
    9.
    发明授权
    Method for detecting fully-charged state of rechargeable battery 失效
    用于检测充电电池的充满电状态的方法

    公开(公告)号:US6064181A

    公开(公告)日:2000-05-16

    申请号:US35840

    申请日:1998-03-06

    IPC分类号: H02J7/10 G01R31/36 H02J7/00

    CPC分类号: H02J7/008 G01R19/16542

    摘要: The difference voltage between the terminal voltage VB of a rechargeable battery BAT and a reference voltage Vz1 is amplified at an initial gain, thereby reducing an amplified voltage value S12. This amplified voltage value S12 is A/D converted into digital value S13. Further, an electrical signal S18 is detected corresponding to the ambient temperature around the battery and is then A/D converted into a digital value S19. Digital values S13 and S19 charge with the progress of charging of the rechargeable battery. The change in these digital values is read by CPU 14 one after another, and the gain used in amplification of the difference voltage is renewed by the gains corresponding to digital values S13 and S19, which are stored in advance in a ROM 20. In the same manner, the reference voltage used in amplification of the difference voltage is renewed by reference voltages Vz2, Vz3, and Vz4 one by one with the progress of charging of the rechargeable battery. When the digital value S13 is decreased, CPU 14 judges that charging of the rechargeable battery is completed, thus a voltage drop -.DELTA.V being caused in the terminal voltage VB, and controls a constant current circuit portion 17 to terminate the supply of the charging current S17.

    摘要翻译: 充电电池BAT的端子电压VB与参考电压Vz1之间的差分电压以初始增益被放大,从而减小了放大的电压值S12。 该放大电压值S12被A / D转换成数字值S13。 此外,对应于电池周围的环境温度检测电信号S18,然后A / D转换成数字值S19。 数字值S13和S19充电可再充电电池的充电进度。 这些数字值的变化由CPU14一个接一个地读取,并且用于放大差值电压的增益通过与预先存储在ROM20中的数字值S13和S19相对应的增益来更新。在 同样地,随着可再充电电池的充电进行,基准电压Vz2,Vz3和Vz4逐次更新用于放大差值电压的基准电压。 当数字值S13减小时,CPU14判断可再充电电池的充电完成,从而在端子电压VB中产生电压降-DTA,并且控制恒流电路部分17终止充电的供应 目前S17。

    Disc recording and/or reproducing apparatus that positions the magnetic
head in response to a type of disc
    10.
    发明授权
    Disc recording and/or reproducing apparatus that positions the magnetic head in response to a type of disc 失效
    光盘记录和/或再现装置,其响应于盘的类型来定位磁头

    公开(公告)号:US5557589A

    公开(公告)日:1996-09-17

    申请号:US317846

    申请日:1994-10-04

    摘要: A disc type detection arm contacts a disc type opening formed in a disc cartridge when the disc cartridge is loaded into a recording and/or reproducing apparatus. The disc type detection arm determines the type of disc which has been loaded by the depth of the disc type opening, and controls the positioning of the magnetic head in response thereto. The magnetic head is spaced-apart from the disc when a read-only type disc is loaded, and positioned close to the disc when a read/write disc is loaded.

    摘要翻译: 当盘盒装载到记录和/或再现装置中时,盘型检测臂接触形成在盘盒中的盘形开口。 盘型检测臂根据盘式开口的深度来确定已经加载的盘的类型,并响应于此而控制磁头的定位。 当加载只读型光盘时,磁头与光盘间隔开,当加载读/写光盘时,磁头位于光盘附近。