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    • 1. 发明授权
    • Disk device
    • 磁盘设备
    • US06981271B2
    • 2005-12-27
    • US10701371
    • 2003-11-03
    • Minoru MinaseShigeru FukinukiYo KameiNoriyuki Kato
    • Minoru MinaseShigeru FukinukiYo KameiNoriyuki Kato
    • G11B17/04G11B25/04G11B33/12G11B17/03
    • G11B33/121G11B17/056
    • A disk device for improving a S/N ratio is provided with a spindle motor control substrate 10 arranged below a tray 3 via a buffer material and a medium substrate 12 arranged at a position different from the spindle motor control substrate 10 below the tray 3. The spindle motor control substrate 10, the medium substrate 12 and the main control substrate 7 of the device body are connected each other with a flexible print circuit (FPC) 9. The medium substrate 12 and a pickup head 1c are connected with other FPC. The head detection signal is provided to the main control substrate 7 through the medium substrate 12. A driver IC for motor drive system is carried on the spindle motor control substrate 10. The motor drive signal is apart from the head detection signal and is provided to a spindle motor 1a or a head transferring motor.
    • 用于提高S / N比的盘装置设置有经由缓冲材料布置在托盘3下方的主轴马达控制基板10和布置在与托盘3下方的主轴马达控制基板10不同的位置处的介质基板12。 主轴电动机控制基板10,介质基板12和装置主体的主控制基板7通过柔性印刷电路(FPC)9相互连接。 介质基板12和拾取头1c与其它FPC连接。 头部检测信号通过介质基板12提供给主控制基板7。 用于马达驱动系统的驱动器IC在主轴马达控制基板10上承载。 马达驱动信号与头部检测信号分离,并且被提供给主轴马达1a或头部传送马达。
    • 2. 发明授权
    • Overheat prevention of a solenoid or the like in a CD-ROM drive or the like
    • CD-ROM驱动器等中的螺线管等的过热防止
    • US06625098B1
    • 2003-09-23
    • US09583033
    • 2000-05-30
    • Minoru MinaseShigeru Fukinuki
    • Minoru MinaseShigeru Fukinuki
    • G11B558
    • G11B17/056G06F1/1616G06F1/1658
    • A CD-ROM drive has a disk tray ejectable from a data transfer position within a casing, where the disk is read, to a load/unload position outside the casing where the disk is loaded on and unloaded from the tray. Being locked in the data transfer position against the bias of an ejector spring, the tray is ejected by being unlocked by brief energization of a solenoid under the direction of a controller. The solenoid might overheat to self-destruction if, upon malfunctioning of the controller, it were left energized after tray ejection. A protection circuit is therefore provided for permitting a solenoid driver circuit to energize the solenoid in response to an ejection command from the controller only when the tray is in the data transfer position.
    • CD-ROM驱动器具有可从外壳内的数据传送位置弹出的磁盘托盘,其中磁盘被读取到壳体外部的装载/卸载位置,在该装载/卸载位置,盘被装载并从托盘卸载。 被锁定在数据传送位置以抵抗喷射器弹簧的偏压时,通过在控制器的方向上通过螺线管的短暂通电来解除托盘。 如果在控制器发生故障后,电磁铁可能会过热自毁,则在托盘弹出后,电磁阀可能会通电。 因此,仅当托盘处于数据传送位置时,提供保护电路,用于允许螺线管驱动器电路响应于来自控制器的喷射命令来激励螺线管。
    • 3. 发明授权
    • Method and apparatus for reading CD-ROMs or the like at matching speeds determined by disk eccentricities
    • 用于通过盘偏心度确定的匹配速度读取CD-ROM等的方法和装置
    • US06181652B2
    • 2001-01-30
    • US09177024
    • 1998-10-22
    • Noriyuki KatouJunichi KanenagaShigeru Fukinuki
    • Noriyuki KatouJunichi KanenagaShigeru Fukinuki
    • G11B709
    • G11B19/04G11B7/0037G11B7/005G11B7/0953G11B19/26
    • A CD-ROM drive is disclosed which is for use with disks having various degrees of spindle hole eccentricity and data track eccentricity. The hole eccentricity of each disk manifests itself during disk rotation as periodic vibration of the disk and, in consequence, periodic departures of the light beam spot from the track to an extent proportional to the speed of disk rotation, whereas the track eccentricity manifests itself during disk rotation as periodic departures of the beam spot from the track to a constant extent regardless of the speed of disk rotation. Therefore, on being loaded into the disk drive, each disk has its hole eccentricity and track eccentricity measured at two different disk eccentricity check speeds in terms of, for example, the amplitude of an eccentricity-caused periodic component of a tracking error signal. The hole eccentricity of the disk is ascertainable by subtracting the eccentricity measurement at the lower check speed from that at the higher check speed. A speed suitable for reading the disk, at which speed the disk will cause no inconvenient vibration, is determined on the basis of the thus ascertained hole eccentricity thereof.
    • 公开了一种CD-ROM驱动器,其用于具有不同程度的主轴孔偏心度和数据磁道偏心率的磁盘。 每个磁盘的孔偏心度在磁盘旋转期间表现为盘的周期性振动,结果是光束点从轨道的周期性偏移到与盘旋转速度成比例的程度,而轨道偏心度在 磁盘旋转作为光束点从轨道的周期性偏移到恒定的程度,而与盘旋转的速度无关。 因此,在装载到磁盘驱动器中时,每个磁盘的偏心距离和轨道偏心度在两个不同的磁盘偏心检查速度下测量,例如在跟踪误差信号的偏心引起的周期分量的振幅方面。 通过以较低的检查速度从较低的检查速度减去偏心率测量值来确定盘的孔偏心度。 基于这样确定的孔偏心率来确定适于读取盘的速度,盘以不会引起振动的不便。
    • 4. 发明授权
    • Optical disk device and power supply method
    • 光盘装置及电源方式
    • US08416661B2
    • 2013-04-09
    • US13158253
    • 2011-06-10
    • Manabu MurakamiShigeru FukinukiNaoki Kimura
    • Manabu MurakamiShigeru FukinukiNaoki Kimura
    • G11B5/00
    • G11B7/126G11B7/1275G11B2007/0006
    • According to one embodiment, an optical disk device includes types of semiconductor laser diodes configured to emit laser light of different wavelengths, an output control circuit configured to control light output of each semiconductor laser diode, and a composite power source configured to generate voltages required for driving the types of semiconductor laser diodes and operating the output control circuit from a single power source voltage and to selectively output the generated voltages. The composite power source includes an input port to input an external control signal at a time of voltage selection and is configured to change the output voltage stepwise in response to the control signal.
    • 根据一个实施例,光盘装置包括配置为发射不同波长的激光的半导体激光二极管的类型,被配置为控制每个半导体激光二极管的光输出的输出控制电路和被配置为产生 驱动类型的半导体激光二极管,并从单个电源电压操作输出控制电路并选择性地输出所产生的电压。 复合电源包括在电压选择时输入外部控制信号的输入端口,并且被配置为响应于控制信号逐步改变输出电压。
    • 5. 发明授权
    • Electric power steering apparatus
    • 电动助力转向装置
    • US08847536B2
    • 2014-09-30
    • US14114296
    • 2012-11-15
    • Shin KumagaiShigeru Fukinuki
    • Shin KumagaiShigeru Fukinuki
    • H02P29/02G01R31/34B62D5/04H02P23/00
    • G01R31/343B62D5/049H02M7/5395H02M2001/0009H02P23/00
    • An electric power steering apparatus includes a shunt resistor connected to an inverter, a controlling motor current detection circuit connected to two terminals of the shunt resistor in a positive direction, which detects phase currents of a motor and uses the detected phase current as a controlling motor current detection value of assist control, and a diagnostic motor current detection circuit that is connected to two terminals of the shunt resistor in an opposite direction and detects a failure of the controlling motor current detection circuit. Each phase current of the motor is detected by one-shunt type and the assist control is performed, and two systems of a circuit for amplifying a voltage between two terminals of the shunt resistor are provided.
    • 一种电动助力转向装置,包括连接到逆变器的分流电阻器,控制电动机电流检测电路,其正向连接到分流电阻器的两个端子,其检测电动机的相电流并使用检测到的相电流作为控制电动机 辅助控制的电流检测值,以及诊断电动机电流检测电路,其以相反方向连接到分流电阻器的两个端子,并检测控制电动机电流检测电路的故障。 电动机的每个相电流由单分流型检测,并且进行辅助控制,并且提供用于放大分流电阻器的两个端子之间的电压的电路的两个系统。
    • 6. 发明授权
    • Optical disk apparatus
    • 光盘装置
    • US07864639B2
    • 2011-01-04
    • US11857710
    • 2007-09-19
    • Shigeru Fukinuki
    • Shigeru Fukinuki
    • G11B7/00G11B20/10G11B20/20G11B27/10
    • G11B7/0053G11B2007/0006
    • An optical disk apparatus includes a signal detection unit which detects a signal corresponding to a wobbling guide groove formed on an optical disk, a timing signal generating unit which generates first and second timing signals in accordance with an amplitude level of the signal detected, a photodetector which detects reflective light from the optical disk, and a wobble signal generating unit which outputs as a wobble signal a signal which is amplified with a low gain amount by the first timing signal in a case where an arithmetic signal, which is generated for the wobble signal on the basis of a signal detected by the photodetector, is at a high amplification level, and outputs as the wobble signal a signal which is amplified with a high gain amount by the second timing signal in a case where the arithmetic signal is at a low amplification level.
    • 一种光盘装置,包括检测与形成在光盘上的摆动引导槽相对应的信号的信号检测单元,根据所检测信号的幅度电平产生第一和第二定时信号的定时信号产生单元, 其检测来自光盘的反射光;以及摆动信号发生单元,其在为摆动产生的算术信号的情况下,以第一定时信号作为摆动信号输出以低增益量被放大的信号 基于由光电检测器检测到的信号的信号处于高放大电平,并且在算术信号处于某一信号的情况下,作为摆动信号输出通过第二定时信号以高增益量放大的信号 低放大级别。
    • 9. 发明申请
    • ELECTRIC POWER STEERING APPARATUS
    • 电动转向装置
    • US20140077741A1
    • 2014-03-20
    • US14114296
    • 2012-11-15
    • Shin KumagaiShigeru Fukinuki
    • Shin KumagaiShigeru Fukinuki
    • G01R31/34
    • G01R31/343B62D5/049H02M7/5395H02M2001/0009H02P23/00
    • [Problem]An object of the present invention is to provide an electric power steering apparatus that enhances safety by detecting each-phase currents of a motor by means of a one-shunt type current detection circuit and at the same time, certainly performing diagnosis of failures (troubles) of the current detection circuit by means of a simplified constitution.[Means for Solving the Problem]An electric power steering apparatus comprises a shunt resistor that is connected to an inverter, a controlling motor current detection circuit that is connected to two terminals of the shunt resistor in a positive direction, detects phase currents of a motor and uses the detected phase current as a controlling motor current detection value of assist control, and a diagnostic motor current detection circuit that is connected to two terminals of the shunt resistor in an opposite direction and detects a failure of the controlling motor current detection circuit, wherein each phase current of the motor is detected by one-shunt type and the assist control is performed, and two systems of a circuit for amplifying a voltage between two terminals of the shunt resistor are provided.
    • 发明内容本发明的目的在于提供一种电动助力转向装置,其通过利用一分流型电流检测电路检测电动机的各相电流来提高安全性,同时,确定地进行诊断 通过简化的结构,电流检测电路的故障(故障)。 解决问题的手段电动助力转向装置包括连接到逆变器的分流电阻器,正向连接到分流电阻器的两个端子的控制电动机电流检测电路,检测电动机的相电流 并且使用所检测的相电流作为辅助控制的电动机电流检测值,以及诊断电动机电流检测电路,其以相反方向连接到分流电阻器的两个端子,并检测控制电动机电流检测电路的故障, 其中电动机的每个相电流通过一分路型检测,并且进行辅助控制,并且提供用于放大分流电阻器的两个端子之间的电压的电路的两个系统。