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公开(公告)号：US06466527B1
公开(公告)日：2002-10-15
申请号：US10076556
申请日：2002-02-19
Applicant: Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
Inventor： Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
IPC: G11B700
CPC classification number: G11B7/08511 , G11B7/1376 , G11B2007/0013
Abstract: In order to reproduce signals from a double-layer optical disc having two signal recording surfaces, a focus jump that the focusing of an objective lens from the one signal recording surface to the other signal recording surface is quickly achieved, is necessary. When a focus error signal (FE) from a pickup (60, 70) reaches a predetermined threshold value (Vcomp), a deceleration signal for decelerating the objective lens (42) is supplied to an actuator (47). Preferably, a deceleration pulse voltage is lowered step by step. The deceleration pulse voltage is determined in accordance with the maximum value (DFEmax) of a differential focus error signal (DFE) generated by differentiating the focus error signal (FE). Preferably, the address seeking is done simultaneously with the focus jump. The focus jump is performed in accordance with the layer-to-layer distance which is measured beforehand. The focus jump is performed by using a lens (143) having a controllable focal distance. Preferably, whether the layer is the first layer or the second layer is judged based on the reflected luminous power. If the focus error signal (FE) from the other layer is not obtained even when a certain time passages after the focus jump is started, the objective lens (42) is moved in the reverse direction.
Abstract translation: 为了从具有两个信号记录表面的双层光盘再现信号，需要快速实现从一个信号记录表面到另一个信号记录表面的物镜的聚焦的聚焦跳跃。 当来自拾取器（60,70）的聚焦误差信号（FE）达到预定阈值（Vcomp）时，用于减速物镜（42）的减速信号被提供给致动器（47）。 优选地，减速脉冲电压逐步降低。 根据通过微分聚焦误差信号（FE）产生的差分聚焦误差信号（DFE）的最大值（DFEmax）来确定减速脉冲电压。 优选地，寻址与焦点跳跃同时完成。 按照预先测量的层间距离执行聚焦跳转。 通过使用具有可控焦距的透镜（143）来进行聚焦跳跃。 优选地，基于反射的光功率来判断层是第一层还是第二层。 如果即使在聚焦跳跃开始之后经过一定时间，也不能获得来自另一层的聚焦误差信号（FE），则物镜42沿相反方向移动。
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公开(公告)号：US4986657A
公开(公告)日：1991-01-22
申请号：US221596
申请日：1988-07-20
Applicant: Shinichi Ohe
Inventor： Shinichi Ohe
CPC classification number: G01N15/1429 , G01J2001/4433 , G01N15/1459 , G01N2021/1734
Abstract: Disclosed is an apparatus for analyzing fine particles such as blood cells in a fluid such as blood, the apparatus comprising a device for generating electrical signal pulses from the specimen particles which have passed a detecting section such as, for example, a flow pass. The signal pulses are compared with a predetermined threshold, and specific information concerning the specimen particles is detected for a period which is determined on the basis of the signals produced by delaying the signal pulses, from a moment at which the threshold value is exceeded by each signal pulse.
Abstract translation: 公开了一种用于分析诸如血液的流体中的细胞的细颗粒的装置，该装置包括用于从已经通过诸如流路的检测部分的样本颗粒产生电信号脉冲的装置。 将信号脉冲与预定阈值进行比较，并且检测关于样本颗粒的特定信息的时间，该周期是基于通过延迟信号脉冲而产生的信号确定的，从每个阈值超过阈值的时刻 信号脉冲。
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公开(公告)号：US4643566A
公开(公告)日：1987-02-17
申请号：US753871
申请日：1985-07-11
Applicant: Shinichi Ohe , Yuji Ito
Inventor： Shinichi Ohe , Yuji Ito
CPC classification number: G01N15/1459 , G01N33/5302 , G01N2015/1477
Abstract: A particle analyzing apparatus has a flow cell provided with a flow section passing therethrough a particle to be examined, an irradiating system for irradiating the particle to be examined in the flow cell with an irradiation light beam having a predetermined light intensity distribution in a direction perpendicular to the direction of application, a photodetector for photometering the light from the particle to be examined irradiated by the irradiating system, a detector for detecting the information regarding the light intensity of the irradiation light beam of the irradiating system at the position of the particle to be examined, and a compensation part for correcting the output of the photodetector on the basis of the output of the information detector.
Abstract translation: 粒子分析装置具有流动池，该流动池设置有通过待检查的粒子的流动部分，照射系统，用于在流动池中照射具有预定的光强度分布的照射光束在垂直方向 向照射方向施加光电检测器，用于对由照射系统照射的待检测颗粒的光进行光度测量;检测器，用于检测在颗粒位置处的照射系统的照射光束的光强度的信息， 以及补偿部分，用于根据信息检测器的输出校正光电检测器的输出。
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Patent Agency Ranking
公开(公告)号：US06480444B2
公开(公告)日：2002-11-12
申请号：US10076531
申请日：2002-02-19
Applicant: Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
Inventor： Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
IPC: G11B700
CPC classification number: G11B7/1372 , G11B7/085 , G11B7/08511 , G11B7/08529 , G11B7/0901 , G11B7/1376 , G11B2007/0013
Abstract: In order to reproduce signals from a double-layer optical disc having two signal recording surfaces, a focus jump that the focusing of an objective lens from the one signal recording surface to the other signal recording surface is quickly achieved, is necessary. When a focus error signal (FE) from a pickup (60, 70) reaches a predetermined threshold value (Vcomp), a deceleration signal for decelerating the objective lens (42) is supplied to an actuator (47). Preferably, a deceleration pulse voltage is lowered step by step. The deceleration pulse voltage is determined in accordance with the maximum value (DFEmax) of a differential focus error signal (DFE) generated by differentiating the focus error signal (FE). Preferably, the address seeking is done simultaneously with the focus jump. The focus jump is performed in accordance with the layer-to-layer distance which is measured beforehand. The focus jump is performed by using a lens (143) having a controllable focal distance. Preferably, whether the layer is the first layer or the second layer is judged based on the reflected luminous power. If the focus error signal (FE) from the other layer is not obtained even when a certain time passages after the focus jump is started, the objective lens (42) is moved in the reverse direction.
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公开(公告)号：US06477122B2
公开(公告)日：2002-11-05
申请号：US10076529
申请日：2002-02-19
Applicant: Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
Inventor： Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
IPC: G11B700
CPC classification number: G11B7/1372 , G11B7/085 , G11B7/08511 , G11B7/08529 , G11B7/0901 , G11B7/1376 , G11B2007/0013
Abstract: In order to reproduce signals from a double-layer optical disc having two signal recording surfaces, a focus jump that the focusing of an objective lens from the one signal recording surface to the other signal recording surface is quickly achieved, is necessary. When a focus error signal (FE) from a pickup (60, 70) reaches a predetermined threshold value (Vcomp), a deceleration signal for decelerating the objective lens (42) is supplied to an actuator (47). Preferably, a deceleration pulse voltage is lowered step by step. The deceleration pulse voltage is determined in accordance with the maximum value (DFEmax) of a differential focus error signal (DFE) generated by differentiating the focus error signal (FE). Preferably, the address seeking is done simultaneously with the focus jump. The focus jump is performed in accordance with the layer-to-layer distance which is measured beforehand. The focus jump is performed by using a lens (143) having a controllable focal distance. Preferably, whether the layer is the first layer or the second layer is judged based on the reflected luminous power. If the focus error signal (FE) from the other layer is not obtained even when a certain time passages after the focus jump is started, the objective lens (42) is moved in the reverse direction.
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公开(公告)号：US06459662B1
公开(公告)日：2002-10-01
申请号：US10076228
申请日：2002-02-19
Applicant: Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
Inventor： Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
IPC: G11B700
CPC classification number: G11B7/1372 , G11B7/085 , G11B7/08511 , G11B7/08529 , G11B7/0901 , G11B7/1376 , G11B2007/0013
Abstract: In order to reproduce signals from a double-layer optical disc having two signal recording surfaces, a focus jump that the focusing of an objective lens from the one signal recording surface to the other signal recording surface is quickly achieved, is necessary. When a focus error signal (FE) from a pickup (60, 70) reaches a predetermined threshold value (Vcomp), a deceleration signal for decelerating the objective lens (42) is supplied to an actuator (47). Preferably, a deceleration pulse voltage is lowered step by step. The deceleration pulse voltage is determined in accordance with the maximum value (DFEmax) of a differential focus error signal (DFE) generated by differentiating the focus error signal (FE). Preferably, the address seeking is done simultaneously with the focus jump. The focus jump is performed in accordance with the layer-to-layer distance which is measured beforehand. The focus jump is performed by using a lens (143) having a controllable focal distance. Preferably, whether the layer is the first layer or the second layer is judged based on the reflected luminous power. If the focus error signal (FE) from the other layer is not obtained even when a certain time passages after the focus jump is started, the objective lens (42) is moved in the reverse direction.
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公开(公告)号：US06370093B1
公开(公告)日：2002-04-09
申请号：US09230540
申请日：1999-01-28
Applicant: Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
Inventor： Koichi Tada , Shinichi Ohe , Naoyuki Takagi , Ken Hirose , Shuichi Ichiura , Hiroshi Watanabe
IPC: G11B700
CPC classification number: G11B7/1372 , G11B7/085 , G11B7/08511 , G11B7/08529 , G11B7/0901 , G11B7/1376 , G11B2007/0013
Abstract: In order to reproduce signals from a double-layer optical disc having two signal recording surfaces, a focus jump that the focusing of an objective lens from the one signal recording surface to the other signal recording surface is quickly achieved, is necessary. When a focus error signal (FE) from a pickup (60, 70) reaches a predetermined threshold value (Vcomp), a deceleration signal for decelerating the objective lens (42) is supplied to an actuator (47). Preferably, a deceleration pulse voltage is lowered step by step. The deceleration pulse voltage is determined in accordance with the maximum value (DFEmax) of a differential focus error signal (DFE) generated by differentiating the focus error signal (FE). Preferably, the address seeking is done simultaneously with the focus jump. The focus jump is performed in accordance with the layer-to-layer distance which is measured beforehand. The focus jump is performed by using a lens (143) having a controllable focal distance. Preferably, whether the layer is the first layer or the second layer is judged based on the reflected luminous power. If the focus error signal (FE) from the other layer is not obtained even when a certain time passages after the focus jump is started, the objective lens (42) is moved in the reverse direction.
Abstract translation: 为了从具有两个信号记录表面的双层光盘再现信号，需要快速实现从一个信号记录表面到另一个信号记录表面的物镜的聚焦的聚焦跳跃。 当来自拾取器（60,70）的聚焦误差信号（FE）达到预定阈值（Vcomp）时，用于减速物镜（42）的减速信号被提供给致动器（47）。 优选地，减速脉冲电压逐步降低。 根据通过微分聚焦误差信号（FE）产生的差分聚焦误差信号（DFE）的最大值（DFEmax）来确定减速脉冲电压。 优选地，寻址与焦点跳跃同时完成。 按照预先测量的层间距离执行聚焦跳转。 通过使用具有可控焦距的透镜（143）来进行聚焦跳跃。 优选地，基于反射的光功率来判断层是第一层还是第二层。 如果即使在聚焦跳跃开始之后经过一定时间，也不能获得来自另一层的聚焦误差信号（FE），则物镜42沿相反方向移动。
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公开(公告)号：US4732479A
公开(公告)日：1988-03-22
申请号：US918981
申请日：1986-10-15
Applicant: Masayuki Tanaka , Shinichi Ohe , Naoki Yuguchi , Akira Tago
Inventor： Masayuki Tanaka , Shinichi Ohe , Naoki Yuguchi , Akira Tago
CPC classification number: G01N15/1434 , G01N15/1459 , G01N2015/1452
Abstract: A particle analyzing apparatus is provided with an irradiating optical system for applying a light beam to a particle to be examined flowing through a circulation portion in a flow cell, a photometering optical system for photometering the light from the particle to be examined irradiated by the irradiating optical system, and moving means for rendering a base bed on which the flow cell and the photometering optical system are placed movable relative to the irradiating optical system.
Abstract translation: 粒子分析装置设置有用于将光束施加到流过流动池中的循环部分的被检查粒子的照射光学系统，用于对通过照射的被检查的被检查粒子的光进行测光的测光光学系统 光学系统和移动装置，用于使流化池和测光光学系统放置在其上的基床相对于照射光学系统可移动。
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