公开(公告)号：US07539108B2

公开(公告)日：2009-05-26

申请号：US11250481

申请日：2005-10-17

申请人： Tsutomu Maruyama ,  Isao Ichimura

发明人： Tsutomu Maruyama ,  Isao Ichimura

IPC分类号： G11B7/00

CPC分类号： G11B20/10203 ,  G11B20/10027 ,  G11B2007/0013 ,  G11B2020/1288 ,  G11B2220/2541

摘要： An optical information reproduction apparatus for reproducing a recording signal by irradiating a light beam onto a recording surface of an optical information recording medium having at least two information recording layers and by receiving reflected light of the light beam is provided. The optical information reproduction apparatus includes an extraction section for extracting an envelope signal of a reproduction signal when the reproduction signal reproduced by focusing the light beam onto one information recording layer in the plural information recording layers has been modulated by interlayer crosstalk from another information recording layer; and a distortion correction section for correcting the distortion of the target reproduction signal caused by the interlayer crosstalk by gain-adjusting the reproduction signal containing DC components so that the envelope signal becomes constant.

摘要翻译： 提供了一种用于通过将光束照射到具有至少两个信息记录层的光学信息记录介质的记录表面并且通过接收光束的反射光来再现记录信号的光学信息再现设备。 光信息再现装置包括一个提取部分，用于当通过将光束聚焦在多个信息记录层中的一个信息记录层上而再现的再现信号通过来自另一个信息记录层的层间串扰进行调制时，提取再现信号的包络信号 ; 以及失真校正部分，用于通过对包含DC分量的再现信号进行增益调节，使得包络信号变得恒定来校正由层间串扰引起的目标再现信号的失真。

公开(公告)号：US20060087937A1

公开(公告)日：2006-04-27

申请号：US11250481

申请日：2005-10-17

申请人： Tsutomu Maruyama ,  Isao Ichimura

发明人： Tsutomu Maruyama ,  Isao Ichimura

IPC分类号： G11B5/09

CPC分类号： G11B20/10203 ,  G11B20/10027 ,  G11B2007/0013 ,  G11B2020/1288 ,  G11B2220/2541

摘要： An optical information reproduction apparatus for reproducing a recording signal by irradiating a light beam onto a recording surface of an optical information recording medium having at least two information recording layers and by receiving reflected light of the light beam is provided. The optical information reproduction apparatus includes an extraction section for extracting an envelope signal of a reproduction signal when the reproduction signal reproduced by focusing the light beam onto one information recording layer in the plural information recording layers has been modulated by interlayer crosstalk from another information recording layer; and a distortion correction section for correcting the distortion of the target reproduction signal caused by the interlayer crosstalk by gain-adjusting the reproduction signal containing DC components so that the envelope signal becomes constant.

公开(公告)号：US20050157614A1

公开(公告)日：2005-07-21

申请号：US10505047

申请日：2003-12-26

申请人： Isao Ichimura ,  Tsutomu Maruyama

发明人： Isao Ichimura ,  Tsutomu Maruyama

IPC分类号： G11B7/00 ,  G11B7/085 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/13925 ,  G11B7/08511 ,  G11B7/1369 ,  G11B2007/0013

摘要： The focus is moved from a first layer (L0) to a second layer (L1) of a double-layered optical disk by stopping a control loop operation and applying acceleration pulses for an interlayer jump to a two-axis electromagnetic actuator. Here, switching timing between acceleration and deceleration for an interlayer jump is generated based on the rate of change of a SUM signal obtained from a light-sensitive element (27), the SUM signal is distinguished by a specific threshold TH, and an S-shaped error signal is distinguished by thresholds THH and THL with different positive/negative level, thereby performing a pull-in operation of focus control. In addition, at the time of the interlayer jump, a liquid crystal element (23) for correcting the spherical aberration is optimized in advance for the cover layer thickness of the target layer L1.

摘要翻译： 通过停止控制循环操作并将层间跳跃的加速度脉冲施加到双轴电磁致动器，将焦点从双层光盘的第一层（L 0）移动到第二层（L 1）。 这里，基于从感光元件（27）获得的SUM信号的变化率来生成层间跳跃的加速和减速之间的切换定时，SUM信号被特定阈值TH区分，并且S- 形状误差信号由具有不同正/负电平的阈值THH和THL区分，从而执行聚焦控制的拉入操作。 此外，在层间跳跃时，针对目标层L 1的覆盖层厚度预先优化用于校正球面像差的液晶元件（23）。

公开(公告)号：US07301875B2

公开(公告)日：2007-11-27

申请号：US10890176

申请日：2004-07-14

申请人： Isao Ichimura ,  Tsutomu Maruyama ,  Yuichi Sabi ,  Kiyoshi Osato

发明人： Isao Ichimura ,  Tsutomu Maruyama ,  Yuichi Sabi ,  Kiyoshi Osato

IPC分类号： G11B7/00

CPC分类号： G11B7/1369 ,  G11B7/00456 ,  G11B7/13927

摘要： An optimum performance is achieved relative to write-once type optical recording mediums on which information is recorded by means of a blue-violet semiconductor laser. An optical disc recording/reproduction apparatus 10 comprises an LD control section 17 adapted to control the irradiation power of a laser when writing data. If the cycle of the channel clock is T, when forming a recording mark having a length of n×T (n being an integer not smaller than 2), a pulse beam is irradiated onto the write-once type information recording medium for n/2 times (decimals, if any, being to be rounded down). When forming a recording mark having a length of not smaller than 6T and even number times of T, a pulse beam is irradiated for n/2 times with all the intermediate pulse beams synchronized with the phase of the channel clock except the leading pulse beam and the tail end pulse beam. When forming a recording mark having a length of not smaller than 6T and odd number times of T, a pulse beam is irradiated with all the intermediate pulse beams delayed from the phase of the channel clock by T/2 except the leading pulse beam and the tail end pulse beam.

摘要翻译： 相对于其上通过蓝紫色半导体激光器记录信息的一次写入型光学记录介质，实现了最佳性能。 光盘记录/再现装置10包括LD控制部分17，其适于在写入数据时控制激光器的照射功率。 如果通道时钟的周期为T，则当形成长度为n×T（n为2以上的整数）的记录标记时，将脉冲光束照射到一次写入型信息记录介质上n / 2次 （小数，如果有的话）被四舍五入）。 当形成长度不小于6T且偶数次T的记录标记时，除了前导脉冲波束之外，与除了通道时钟的相位同步的所有中间脉冲波束照射脉冲束n / 2次， 尾端脉冲光束。 当形成长度不小于6T且奇数倍的记录标记时，除了前导脉冲波束之外，从通道时钟的相位延迟的所有中间脉冲波束照射脉冲光束T / 2， 尾端脉冲束。

公开(公告)号：US07126899B2

公开(公告)日：2006-10-24

申请号：US10505047

申请日：2003-12-26

申请人： Isao Ichimura ,  Tsutomu Maruyama

发明人： Isao Ichimura ,  Tsutomu Maruyama

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/08511 ,  G11B7/1369 ,  G11B2007/0013

摘要： The focus is moved from a first layer (L0) to a second layer (L1) of a double-layered optical disk by stopping a control loop operation and applying acceleration pulses for an interlayer jump to a two-axis electromagnetic actuator. Here, switching timing between acceleration and deceleration for an interlayer jump is generated based on the rate of change of a SUM signal obtained from a light-sensitive element (27), the SUM signal is distinguished by a specific threshold TH, and an S-shaped error signal is distinguished by thresholds THH and THL with different positive/negative level, thereby performing a pull-in operation of focus control. In addition, at the time of the interlayer jump, a liquid crystal element (23) for correcting the spherical aberration is optimized in advance for the cover layer thickness of the target layer L1.

摘要翻译： 通过停止控制循环操作并将层间跳跃的加速度脉冲施加到双轴电磁致动器，将焦点从双层光盘的第一层（L 0）移动到第二层（L 1）。 这里，基于从感光元件（27）获得的SUM信号的变化率来生成层间跳跃的加速和减速之间的切换定时，SUM信号被特定阈值TH区分，并且S- 形状误差信号由具有不同正/负电平的阈值THH和THL区分，从而执行聚焦控制的拉入操作。 此外，在层间跳跃时，针对目标层L 1的覆盖层厚度预先优化用于校正球面像差的液晶元件（23）。

公开(公告)号：US20050036423A1

公开(公告)日：2005-02-17

申请号：US10890176

申请日：2004-07-14

申请人： Isao Ichimura ,  Tsutomu Maruyama ,  Yuichi Sabi ,  Kiyoshi Osato

发明人： Isao Ichimura ,  Tsutomu Maruyama ,  Yuichi Sabi ,  Kiyoshi Osato

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/135 ,  G11B7/00 ,  G11B5/09

CPC分类号： G11B7/1369 ,  G11B7/00456 ,  G11B7/13927

摘要： An optimum performance is achieved relative to write-once type optical recording mediums on which information is recorded by means of a blue-violet semiconductor laser. An optical disc recording/reproduction apparatus 10 comprises an LD control section 17 adapted to control the irradiation power of a laser when writing data. If the cycle of the channel clock is T, when forming a recording mark having a length of n×T (n being an integer not smaller than 2), a pulse beam is irradiated onto the write-once type information recording medium for n/2 times (decimals, if any, being to be rounded down). When forming a recording mark having a length of not smaller than 6T and even number times of T, a pulse beam is irradiated for n/2 times with all the intermediate pulse beams synchronized with the phase of the channel clock except the leading pulse beam and the tail end pulse beam. When forming a recording mark having a length of not smaller than 6T and odd number times of T, a pulse beam is irradiated with all the intermediate pulse beams delayed from the phase of the channel clock by T/2 except the leading pulse beam and the tail end pulse beam.

摘要翻译： 相对于其上通过蓝紫色半导体激光器记录信息的一次写入型光学记录介质，实现了最佳性能。 光盘记录/再现装置10包括LD控制部分17，其适于在写入数据时控制激光器的照射功率。 如果通道时钟的周期为T，则当形成长度为n×T（n为2以上的整数）的记录标记时，将脉冲光束照射到一次写入型信息记录介质上n / 2次 （小数，如果有的话）被四舍五入）。 当形成长度不小于6T且偶数次T的记录标记时，除了前导脉冲波束之外，与除了通道时钟的相位同步的所有中间脉冲波束照射脉冲束n / 2次， 尾端脉冲光束。 当形成长度不小于6T且奇数倍的记录标记时，除了前导脉冲波束之外，从通道时钟的相位延迟的所有中间脉冲波束照射脉冲光束T / 2， 尾端脉冲束。

公开(公告)号：US08466475B2

公开(公告)日：2013-06-18

申请号：US12846485

申请日：2010-07-29

申请人： Isao Ichimura ,  Masanobu Yamamoto ,  Shinichi Kai

发明人： Isao Ichimura ,  Masanobu Yamamoto ,  Shinichi Kai

IPC分类号： H01L31/153

CPC分类号： G01N21/6454 ,  B01L3/5027 ,  B01L2300/0654 ,  B01L2300/0816 ,  B01L2300/0864 ,  B01L2300/168

摘要： A light detecting chip includes at least one detection region configured to accommodate a sample that is capable of emitting fluorescent light, and a light reflecting section configured to reflect at least a portion of the fluorescent light emitted from the sample in a direction toward a light detector.

摘要翻译： 光检测芯片包括被配置为容纳能够发射荧光的样本的至少一个检测区域，以及被配置为将从样品发射的荧光的至少一部分朝向光检测器的方向反射的光反射部分 。

公开(公告)号：US08335353B2

公开(公告)日：2012-12-18

申请号：US12450120

申请日：2008-04-03

申请人： Kenji Yamamoto ,  Isao Ichimura

发明人： Kenji Yamamoto ,  Isao Ichimura

IPC分类号： G06K9/00

CPC分类号： G06K9/00046 ,  A61B5/117 ,  G02B3/0006 ,  G02B6/0055 ,  G02B6/0056 ,  G06K2009/00932

摘要： A low-profile biometrics authentication system capable of achieving high security level authentication is provided. A biometrics authentication system 1 includes a light source 10, a light guide section 11A, a diffraction section 11B, a microlens array 12, an image pickup device 13, an image processing section 14, a pattern storing section 15, an authentication section 16, a voltage supply section 17, a light source driving section 181, an image pickup device driving section 182 and a control section 19. When light L0 emitted from the light source 10 propagates through the light guide section 11A by total reflection, and then enters the diffraction section 11B, light L1 diffracted at a different angle from an incident angle is generated. Thereby, the light guide section 11A functions as a surface-emitting light source, and total reflection conditions in the light guide section 11A are not satisfied, and the light L1 is guided to the outside of the light guide section 11A, thereby light is sufficiently applied to the inside of the living body 2.

摘要翻译： 提供能够实现高安全级别认证的低调生物识别认证系统。 生物体认证系统1包括光源10，导光部11A，衍射部11B，微透镜阵列12，图像拾取装置13，图像处理部14，图案存储部15，认证部16， 电压供给部17，光源驱动部181，摄像元件驱动部182和控制部19.当从光源10发射的光L0通过全反射传播通过导光部11A后，进入 衍射部11B产生以与入射角不同的角度衍射的光L1。 因此，导光部11A用作表面发射光源，并且不满足导光部11A中的全反射条件，并且将光L1引导到导光部11A的外部，从而光充分 应用于生物体2的内部。

公开(公告)号：US08324597B2

公开(公告)日：2012-12-04

申请号：US12848340

申请日：2010-08-02

申请人： Atsushi Fukumoto ,  Isao Ichimura ,  Shinichi Kai ,  Toshio Watanabe ,  Yuji Segawa

发明人： Atsushi Fukumoto ,  Isao Ichimura ,  Shinichi Kai ,  Toshio Watanabe ,  Yuji Segawa

IPC分类号： H05B33/00

CPC分类号： G01N21/6452 ,  B01L3/502715 ,  B01L2300/0654 ,  B01L2300/0816 ,  B01L2300/0829 ,  G01N21/05 ,  G01N2021/0346 ,  G01N2021/6419 ,  G01N2201/0627

摘要： Disclosed herein is a light detection device including, at least, a substrate provided with a plurality of detection regions where to perform detection of fluorescent light emitted from the inside of a sample upon irradiation of the sample with light, a light irradiation section operable to perform the irradiation with light, an optical control section configured to irradiate the detection regions with the light radiated from the light irradiation section, and a light detection section operable to detect the fluorescent light.

摘要翻译： 本发明公开了一种光检测装置，至少包括设置有多个检测区域的基板，其中，在用光照射样品时，从样品内部发出的荧光进行检测;光照射部分，其可操作以执行 光照射，被配置为用从所述光照射部照射的光照射所述检测区域的光学控制部，以及可操作以检测所述荧光的光检测部。

公开(公告)号：US08111595B2

公开(公告)日：2012-02-07

申请号：US11092907

申请日：2005-03-30

申请人： Isao Ichimura

发明人： Isao Ichimura

IPC分类号： G11B7/00

CPC分类号： G11B7/0053 ,  G11B7/00736 ,  G11B7/0901 ,  G11B7/0906

摘要： An optical disc recording and playback apparatus includes an optical pickup performing an operation for recording and playing back signal information into and from an optical disc; an optical element allowing a light beam irradiated onto an optical disc by the optical pickup to be split into a main beam and sub-beams on both sides of the main beam and supplying the beams to the optical disc; an optical detector detecting return light from the optical disc; and a computation circuit detecting a track control error signal by a phase difference method and a differential push-pull method by using the detection signal from the optical detector and also detecting a wobble signal.

摘要翻译： 光盘记录和重放装置包括执行用于将信号信息记录到光盘中并从光盘回放的操作的光学拾取器; 允许通过光学拾取器照射到光盘上的光束被分裂成主光束并且在主光束的两侧上的子光束并将光束提供给光盘的光学元件; 检测来自光盘的返回光的光学检测器; 以及通过使用来自光学检测器的检测信号并且还检测摆动信号的相位差法和差分推挽法检测轨道控制误差信号的计算电路。