Semiconductor laser device and driving method for the same as well as
tracking servo system employing the same
    1.
    发明授权
    Semiconductor laser device and driving method for the same as well as tracking servo system employing the same 失效
    半导体激光器件及其驱动方法以及使用其的跟踪伺服系统

    公开(公告)号:US5533042A

    公开(公告)日:1996-07-02

    申请号:US317594

    申请日:1994-10-03

    摘要: A semiconductor laser device which allows high speed correction of the position of a laser spot on an optical disk is disclosed. The semiconductor laser device comprises an active layer which oscillates a laser beam when electric current is supplied thereto, and a plurality of independent electrodes for varying the current density distribution in the active layer to vary the intensity distribution of the laser beam to be emitted from an emergent face of the semiconductor laser device. With the semiconductor laser device, by supplying electric currents individually from the plurality of independent electrodes to vary the current density distribution in the active layer, the beam spot position can be corrected within the frequency bandwidth of several tens MHz by direct modulation of the semiconductor laser device. Also a driving method for the semiconductor laser device and a tracking servo system in which the semiconductor laser device is incorporated are disclosed.

    摘要翻译: 公开了一种允许高速校正光盘上的激光点位置的半导体激光器件。 半导体激光器件包括在向其提供电流时使激光束振荡的有源层,以及用于改变有源层中的电流密度分布的多个独立电极,以改变激光束的发射强度分布 半导体激光装置的紧急面。 利用半导体激光装置,通过从多个独立电极分别供给电流来改变有源层中的电流密度分布,可以通过半导体激光器的直接调制在数十MHz的频带内修正光束位置 设备。 还公开了半导体激光器件的驱动方法和其中结合半导体激光器件的跟踪伺服系统。

    Manufacturing products management method, system and apparatus
    4.
    发明授权
    Manufacturing products management method, system and apparatus 有权
    制造产品管理方法,系统和设备

    公开(公告)号:US08265892B2

    公开(公告)日:2012-09-11

    申请号:US12537630

    申请日:2009-08-07

    IPC分类号: G01N37/00

    CPC分类号: G06Q50/04 G06Q10/06 Y02P90/30

    摘要: A management apparatus includes: a managing unit that manages production information corresponding to each of a plurality of information processing devices; a specifying unit that specifies, based on a defect notice for at least one component and the production information on the managed information processing devices, at least one of the information processing devices using the component; a state judging unit that judges whether each information processing device is in an operable state where a processing function of each information processing device is operable in an environment in which the processing function of each information processing device is provided; and an operation restricting unit that performs operation restriction for the processing function of each information processing device according to the defect notice if the state judging unit judges that each information processing device is in the operable state.

    摘要翻译: 管理装置包括:管理单元,其管理与多个信息处理装置中的每一个对应的生产信息; 指定单元,其基于至少一个组件的缺陷通知和关于所述管理信息处理设备的生产信息,指定使用所述组件的所述信息处理设备中的至少一个; 状态判断单元,判断每个信息处理设备是否处于每个信息处理设备的处理功能在其中提供每个信息处理设备的处理功能的环境中是可操作的操作状态; 以及操作限制单元,如果状态判断单元判断每个信息处理设备处于可操作状态,则根据缺陷通知执行每个信息处理设备的处理功能的操作限制。

    Failure prevention diagnosis support system, failure prevention diagnosis support method, and program product of failure prevention diagnosis support
    6.
    发明授权
    Failure prevention diagnosis support system, failure prevention diagnosis support method, and program product of failure prevention diagnosis support 有权
    故障预防诊断支持系统,故障预防诊断支持方法和故障预防诊断支持的程序产品

    公开(公告)号:US07489881B2

    公开(公告)日:2009-02-10

    申请号:US11646254

    申请日:2006-12-28

    IPC分类号: G03G15/00

    摘要: A failure prevention diagnosis support system includes: an acquiring portion that acquires internal information about an internal state of an image forming apparatus; a storage portion that stores one or a plurality of logistic regression models that define an estimate value of a regression coefficient through a logistic regression analysis using the internal information obtained when the image forming apparatus is in a failed state and in a normal state; and a controller that performs a control operation to select a logistic regression model from the one or the plurality of the logistic regression models stored in the storage portion in accordance with the image forming apparatus, and to calculate risk degrees as objective variables that are indicators of failure degrees in the image forming apparatus by assigning the internal information acquired by the acquiring portion or the value obtained from the internal information to the selected logistic regression model.

    摘要翻译: 故障预防诊断支持系统包括:获取部,其获取关于图像形成装置的内部状态的内部信息; 存储部,其存储通过使用在图像形成装置处于故障状态而获得的正常状态下获得的内部信息的逻辑回归分析来定义回归系数的估计值的一个或多个逻辑回归模型; 以及控制器,其执行控制操作以根据图像形成装置从存储在存储部分中的一个或多个逻辑回归模型中选择逻辑回归模型,并将风险度计算为作为 通过将由获取部分获取的内部信息或从内部信息获得的值分配给所选择的逻辑回归模型,图像形成装置中的故障程度。

    Circuit board inspection device
    7.
    发明授权
    Circuit board inspection device 失效
    电路板检测装置

    公开(公告)号:US07250781B2

    公开(公告)日:2007-07-31

    申请号:US10721461

    申请日:2003-11-26

    IPC分类号: G01R31/02

    摘要: A circuit board inspection device for inspecting the operation of a circuit board having a predetermined part or wire formed therein includes a supporting substrate disposed substantially in parallel with the parts mounting surface of the circuit board, and a signal change detection unit made of a coil or a capacitor disposed in a position of the supporting substrate corresponding to the part or wire of the circuit board, with the supporting substrate being disposed substantially in parallel with the circuit board.

    摘要翻译: 用于检查其中形成有预定部分或线的电路板的操作的电路板检查装置包括基本上平行于电路板的部件安装表面设置的支撑基板,以及信号变化检测单元,其由线圈或 电容器,其设置在所述支撑基板的对应于所述电路板的所述部分或导线的位置,所述支撑基板大致平行于所述电路板。

    Fault diagnosis apparatus
    8.
    发明申请

    公开(公告)号:US20070113692A1

    公开(公告)日:2007-05-24

    申请号:US11645673

    申请日:2006-12-27

    IPC分类号: G01N19/00

    CPC分类号: B41J29/38

    摘要: A fault diagnosis section activates a driving component alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, σv, Tqs, σts) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks. When the driving component is activated alone under actual operation conditions, the operation state signal Vf is obtained, and an operation state fault determination section conducts diagnosis on whether or not a fault has arisen on the driving component and a state of the fault, and whether or not a fault has arisen on other power transmission components and a nature of the fault with reference to the feature values as the determination reference on the basis of a degree of deviation from a normal range.

    Fault diagnosis apparatus
    9.
    发明授权
    Fault diagnosis apparatus 失效
    故障诊断装置

    公开(公告)号:US07174264B2

    公开(公告)日:2007-02-06

    申请号:US10889055

    申请日:2004-07-13

    IPC分类号: G01M13/00

    CPC分类号: B41J29/38

    摘要: A fault diagnosis section activates a driving component alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, ov, Tqs, ots) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks. When the driving component is activated alone under actual operation conditions, the operation state signal Vf is obtained, and an operation state fault determination section conducts diagnosis on whether or not a fault has arisen on the driving component and a state of the fault, and whether or not a fault has arisen on other power transmission components and a nature of fault with reference to the feature values as the determination reference on the basis of a degree of deviation from a normal range.

    摘要翻译: 故障诊断部分单独激活驱动部件,测量操作状态信号和纸张通过时间,并将作为确定基准提取的特征值(Vm,ov,Tqs,ots)存储在存储介质中。 纸通过故障判定部根据设备处于正常工作条件下的纸张通过时间来判定故障是否发生。 当确定存在多个诊断目标块时,诊断目标块确定部分确定操作细节故障诊断的顺序。 当在实际操作条件下单独激活驱动部件时,获得操作状态信号Vf,并且操作状态故障确定部分是否对驱动部件发生故障和故障状态进行诊断,以及是否 或者不是基于与正常范围的偏离程度参照作为确定参考的特征值而在其它动力传递部件和故障的性质上产生故障。