公开(公告)号：US20050041541A1

公开(公告)日：2005-02-24

申请号：US10921836

申请日：2004-08-20

申请人： Kiyoshi Tateishi ,  Kazuo Takahashi ,  Mitsuru Sato ,  Ichiro Sugai

发明人： Kiyoshi Tateishi ,  Kazuo Takahashi ,  Mitsuru Sato ,  Ichiro Sugai

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

CPC分类号： G11B7/08511 ,  G11B7/0945 ,  G11B2007/0013

摘要： An optical pickup is provided for preventing an objective lens from colliding with an optical recording medium at the stage of initial adjustments. The optical pickup device comprises a servo circuit, and a lens driver for driving an objective lens. In the servo circuit, a drive signal generator supplies the lens driver with one of a first focus drive signal for moving the objective lens in a direction closer to an information recording layer, and a second focus drive signal for moving the objective lens in a direction away from the information recording layer. A controller in a timing generator switches a signal supplied to the lens driver from the first focus drive signal to the second focus drive signal when the level changes by a predetermined range or more in a servo signal which is generated during a period in which the first focus drive signal is being supplied to the lens driver.

摘要翻译： 提供了一种用于在初始调整阶段防止物镜与光记录介质碰撞的光拾取器。 光学拾取装置包括伺服电路和用于驱动物镜的透镜驱动器。 在伺服电路中，驱动信号发生器向透镜驱动器提供用于使物镜沿更靠近信息记录层的方向移动的第一聚焦驱动信号和用于使物镜沿方向移动的第二聚焦驱动信号 远离信息记录层。 定时发生器中的控制器在第一聚焦驱动信号中提供给镜头驱动器的信号切换到第二聚焦驱动信号，当电平在伺服信号中改变预定范围或更大时，该伺服信号是在第一 聚焦驱动信号被提供给镜头驱动器。

公开(公告)号：US06958966B2

公开(公告)日：2005-10-25

申请号：US10379678

申请日：2003-03-06

申请人： Kiyoshi Tateishi ,  Ichiro Sugai

发明人： Kiyoshi Tateishi ,  Ichiro Sugai

IPC分类号： G11B7/0037 ,  G11B7/00 ,  G11B7/095 ,  G11B19/247 ,  H02P5/00 ,  H02P29/00

CPC分类号： G11B19/247 ,  G11B7/095

摘要： An optical disc player having an optical pickup records and retrieves information on an optical disc while the optical disc is rotating. A rotation pulse is generated each time the optical disc rotates through a prescribed angle. A rotation frequency data representing a frequency of the rotation pulse is also generated. A servo processor performs servo processing for rotation control on the optical disc in accordance with the rotation frequency data. A sampling pulse generator performs computational processing on an input data signal to generate a sampling pulse. The sampling pulse generator also corrects the rotation frequency data based on a phase error between the sampling pulse and the rotation pulse to use a corrected rotation frequency data as the input data signal. Another servo processor performs servo processing for repetitive control on the optical pickup using the sampling pulse.

摘要翻译： 具有光学拾取器的光盘播放器在光盘旋转的同时在光盘上记录和检索信息。 每当光盘旋转规定角度时产生旋转脉冲。 也产生表示旋转脉冲的频率的旋转频率数据。 伺服处理器根据旋转频率数据执行用于光盘上的旋转控制的伺服处理。 采样脉冲发生器对输入数据信号执行计算处理以产生采样脉冲。 采样脉冲发生器还基于采样脉冲和旋转脉冲之间的相位误差校正旋转频率数据，以使用校正的旋转频率数据作为输入数据信号。 另一个伺服处理器使用采样脉冲对光拾取器进行重复控制的伺服处理。

公开(公告)号：US07522482B2

公开(公告)日：2009-04-21

申请号：US10921836

申请日：2004-08-20

申请人： Kiyoshi Tateishi ,  Kazuo Takahashi ,  Mitsuru Sato ,  Ichiro Sugai

发明人： Kiyoshi Tateishi ,  Kazuo Takahashi ,  Mitsuru Sato ,  Ichiro Sugai

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/0945 ,  G11B2007/0013

摘要： An optical pickup is provided for preventing an objective lens from colliding with an optical recording medium at the stage of initial adjustments. The optical pickup device comprises a servo circuit, and a lens driver for driving an objective lens. In the servo circuit, a drive signal generator supplies the lens driver with one of a first focus drive signal for moving the objective lens in a direction closer to an information recording layer, and a second focus drive signal for moving the objective lens in a direction away from the information recording layer. A controller in a timing generator switches a signal supplied to the lens driver from the first focus drive signal to the second focus drive signal when the level changes by a predetermined range or more in a servo signal which is generated during a period in which the first focus drive signal is being supplied to the lens driver.

摘要翻译： 提供了一种用于在初始调整阶段防止物镜与光记录介质碰撞的光拾取器。 光学拾取装置包括伺服电路和用于驱动物镜的透镜驱动器。 在伺服电路中，驱动信号发生器向透镜驱动器提供用于使物镜沿更靠近信息记录层的方向移动的第一聚焦驱动信号和用于使物镜沿方向移动的第二聚焦驱动信号 远离信息记录层。 定时发生器中的控制器在第一聚焦驱动信号中提供给镜头驱动器的信号切换到第二聚焦驱动信号，当电平在伺服信号中改变预定范围或更大时，该伺服信号是在第一 聚焦驱动信号被提供给镜头驱动器。

公开(公告)号：US20130090564A1

公开(公告)日：2013-04-11

申请号：US13805262

申请日：2010-06-24

申请人： Kiyoshi Tateishi ,  Atsuya Ito ,  Yoshinori Kimura

发明人： Kiyoshi Tateishi ,  Atsuya Ito ,  Yoshinori Kimura

IPC分类号： A61B5/026

CPC分类号： A61B5/0261 ,  G01F1/661 ,  G01F1/663 ,  G01F1/667 ,  G01P5/26 ,  G01S17/58

摘要： A light detecting apparatus includes: a first photoelectric conversion element unit (110) and a second photoelectric conversion element unit(120) each of which converts input light to an electric current and output it; an optical current transducer unit (100) for outputting, as a detected current, a differential current between an electric current outputted by the first photoelectric conversion element unit and an electric current outputted by the second photoelectric conversion element unit; and a first current/voltage converting unit (200) for amplifying the detected current outputted from the optical current transducer unit, converting it to a voltage signal, and outputting the voltage signal.

摘要翻译： 光检测装置包括：将输入光转换为电流并输出的第一光电转换元件单元（110）和第二光电转换元件单元（120） 用于输出由第一光电转换元件单元输出的电流与由第二光电转换元件单元输出的电流之间的差分电流作为检测电流的光电流传感器单元; 以及用于放大从光电流传感器单元输出的检测电流的第一电流/电压转换单元（200），将其转换为电压信号，并输出电压信号。

公开(公告)号：US20120105033A1

公开(公告)日：2012-05-03

申请号：US13380407

申请日：2009-07-01

申请人： Kiyoshi Tateishi ,  Yoshihiro Hanada ,  Michiaki Nakamura

发明人： Kiyoshi Tateishi ,  Yoshihiro Hanada ,  Michiaki Nakamura

IPC分类号： G05F1/10

CPC分类号： H03F3/45475 ,  G01J1/44 ,  H03F3/082 ,  H03F3/087 ,  H03F3/45183 ,  H03F3/4565 ,  H03F2203/45082 ,  H03F2203/45138 ,  H03F2203/45528 ,  H03F2203/45702

摘要： A light amount detecting apparatus includes: a photoelectric converting element converting quantity of light inputted to current; a current/voltage converting device having a positive input terminal connected to a first terminal of the photoelectric converting element, a negative input terminal connected to a second terminal of the photoelectric converting element, a negative output terminal for reversing polarity of a current inputted to the positive input terminal and outputting it as a voltage, a positive output terminal for reversing polarity of a current inputted to the negative input terminal and outputting it as a voltage, a first negative feedback resistor connecting the positive and negative output terminals, and a second negative feedback resistor connected between the negative and positive output terminals, the current/voltage converting device setting the photoelectric converting element in zero bias and converting the converted current to the voltage; and an amplifying device for amplifying the converted voltage.

摘要翻译： 光量检测装置包括：光电转换元件，将输入到电流的光量进行转换; 电流/电压转换装置，具有连接到光电转换元件的第一端子的正输入端子，连接到光电转换元件的第二端子的负输入端子，用于反转输入到光电转换元件的电流的极性的负输出端子 正输入端子并将其输出为电压;正输出端子，用于反转输入到负输入端子的电流的极性并将其输出为电压;第一负反馈电阻器，连接正极和负极输出端子;以及第二负极 反馈电阻连接在负输出端和正输出端之间，电流/电压转换装置将光电转换元件设置为零偏置并将转换后的电流转换为电压; 以及用于放大转换电压的放大装置。

公开(公告)号：US08138746B2

公开(公告)日：2012-03-20

申请号：US12532129

申请日：2007-03-20

申请人： Kiyoshi Tateishi ,  Takanori Maeda ,  Hideki Kobayashi ,  Tomotaka Yabe

发明人： Kiyoshi Tateishi ,  Takanori Maeda ,  Hideki Kobayashi ,  Tomotaka Yabe

IPC分类号： G01N27/00

CPC分类号： G11B9/02 ,  G11B9/06

摘要： A physical properties detection device comprising a probe to be placed near or touching a surface of a ferroelectric; an oscillation loop including the probe and capacitance within the ferroelectric; and detection means for detecting a physical properties of the ferroelectric on the basis of a frequency variation of a measurement signal generated in the oscillation loop, the frequency variation accompanying application of an alternating electric field to the ferroelectric; and the physical properties detection device is further comprising frequency conversion means for converting the frequency of the measurement signal to a low frequency and outputting the resulting signal as a converted measurement signal; frequency control means for controlling the frequency of the converted measurement signal so as to match a target frequency; frequency detection means for generating a frequency detection signal that has a signal level corresponding to the frequency of the converted measurement signal; and synchronous detection means for synchronously detecting the frequency detection signal on the basis of a synchronization signal.

摘要翻译： 一种物理特性检测装置，包括放置在铁电体表面附近或接触铁电体的探针; 包括铁电体内探针和电容的振荡回路; 以及检测装置，用于基于在振荡环路中产生的测量信号的频率变化，伴随向铁电体施加交变电场的频率变化来检测铁电体的物理性质; 物理特性检测装置还包括频率转换装置，用于将测量信号的频率转换为低频，并将所得信号作为转换的测量信号输出; 频率控制装置，用于控制转换的测量信号的频率以便匹配目标频率; 频率检测装置，用于产生具有与转换的测量信号的频率对应的信号电平的频率检测信号; 以及用于基于同步信号同步检测频率检测信号的同步检测装置。

公开(公告)号：US08004958B2

公开(公告)日：2011-08-23

申请号：US12297421

申请日：2007-04-18

申请人： Takanori Maeda ,  Kiyoshi Tateishi

发明人： Takanori Maeda ,  Kiyoshi Tateishi

IPC分类号： G11B9/02

CPC分类号： G11B9/02 ,  B82Y10/00 ,  G11B9/1454 ,  Y10S977/947

摘要： A probe group is composed of, for instance, four probes adjacently arranged, and one modulation circuit is arranged for each probe group. At the time of recoding information, a changeover switch connects one of the four probes with the modulation circuit, and subsequently changes the probes to be connected with the modulation circuit while reciprocal movement of a recording medium is being controlled.

摘要翻译： 探针组由例如四个探针相邻排列组成，每个探针组设置一个调制电路。 在重新编码信息时，切换开关将四个探针中的一个连接到调制电路，随后在控制记录介质的往复运动的同时改变要与调制电路连接的探针。

公开(公告)号：US20110190641A1

公开(公告)日：2011-08-04

申请号：US13061079

申请日：2008-08-28

申请人： Kiyoshi Tateishi ,  Yoshinori Kimura

发明人： Kiyoshi Tateishi ,  Yoshinori Kimura

IPC分类号： A61B6/00

CPC分类号： A61B5/0261 ,  A61B2560/0242 ,  A61B2560/0276

摘要： Disclosed herein is a biological information measurement apparatus for rendering laser light incident on an examinee and measuring a state of internal tissue of the examinee based on light scattered within the examinee. The biological information measurement apparatus includes a laser light source for emitting the laser light, photoelectric conversion means for receiving the scattered light and generating a measurement signal based on the scattered light, signal amplification means for generating an amplified signal by amplifying a signal level of the measurement signal, signal supply means for intermittently supplying the measurement signal to the signal amplification means, first output means for intermittently holding the amplified signal corresponding to a period in which the measurement signal is supplied to the signal amplification means and outputting the held signal as a first signal, second output means for intermittently holding the amplified signal corresponding to a period in which the measurement signal is not supplied to the signal amplification means and outputting the held signal as a second signal, signal subtraction means for generating a subtraction signal based on a difference between the first signal and the second signal, and arithmetic output means for arithmetically outputting information about the internal tissue of the examinee based on the subtraction signal.

摘要翻译： 这里公开了一种生物信息测量装置，用于使入射到受检者上的激光，并且基于受检者内的光散射来测量受检者的内部组织的状态。 生物信息测量装置包括用于发射激光的激光源，用于接收散射光并基于散射光产生测量信号的光电转换装置，用于通过放大放大信号的信号电平来产生放大信号的信号放大装置 测量信号，用于将测量信号间歇地提供给信号放大装置的信号提供装置，用于将对应于测量信号的周期的放大信号间歇地保持到信号放大装置的第一输出装置，并将所保持的信号作为 第一信号，第二输出装置，用于将对应于测量信号未被提供给信号放大装置的周期的放大信号间歇地保持，并将所保持的信号作为第二信号输出;信号相减装置，用于产生基于 差异 使用第一信号和第二信号，以及算术输出装置，用于基于减法信号算术输出关于受检者的内部组织的信息。

公开(公告)号：US20100103491A1

公开(公告)日：2010-04-29

申请号：US12531787

申请日：2007-03-20

申请人： Michikazu Hashimoto ,  Kiyoshi Tateishi

发明人： Michikazu Hashimoto ,  Kiyoshi Tateishi

IPC分类号： G03H1/22

CPC分类号： G11B7/005 ,  G03H1/2249 ,  G03H2210/20 ,  G11B7/0065 ,  G11B7/131

摘要： A hologram reproduced image position detecting method used in a hologram apparatus which perfoming an image formation with light reproduced from a recording medium where a data page including a marker and a data area that have been displayed on a spatial light modulator is recorded, on an image sensor having a larger number of pixels than the spatial light modulator, thereby obtaining a reproduced image of the data page to reproduce the data page. The detecting method comprises the steps of storing a template image into which the marker has been interpolation-expanded, beforehand; oversampling the reproduced image of the data page in the image sensor to obtain a detected image; and performing a template matching process on the detected image using the template image, thereby detecting the position of the marker when recorded.

摘要翻译： 在全息图设备中使用的全息图再现图像位置检测方法，其用于记录从记录介质再现的光的图像形成，其中包括已经在空间光调制器上显示的标记和数据区的数据页被记录在图像上 传感器具有比空间光调制器更大数量的像素，从而获得数据页的再现图像以再现数据页。 检测方法包括以下步骤：事先将存储标记已被插值扩展的模板图像存储; 对图像传感器中的数据页的再现图像进行过采样以获得检测图像; 并使用模板图像对检测到的图像执行模板匹配处理，从而在记录时检测标记的位置。

公开(公告)号：US20090232174A1

公开(公告)日：2009-09-17

申请号：US11910282

申请日：2006-03-30

申请人： Junichi Furukawa ,  Kiyoshi Tateishi

发明人： Junichi Furukawa ,  Kiyoshi Tateishi

IPC分类号： H01S3/00

CPC分类号： G11B7/1263 ,  G11B7/0062 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/06832

摘要： A semiconductor laser driving device is mounted on an information recording/reproducing device or the like, and is suitably used for recording and reproducing information. The semiconductor laser driving device is provided with a semiconductor laser for emitting laser beams, and a temperature detecting means for detecting a temperature of the semiconductor laser, and changes an output of the laser beams based on the detected temperature. Thus, the semiconductor laser driving means can suitably improve response characteristics of the semiconductor laser, irrespective of the temperature of the semiconductor laser. Therefore, the semiconductor laser driving device can ensure recording performance to an optical disc without being affected by the temperature of the semiconductor laser.

摘要翻译： 半导体激光器驱动装置安装在信息记录/再现装置等上，适用于记录和再现信息。 半导体激光器驱动装置设置有用于发射激光束的半导体激光器和用于检测半导体激光器的温度的温度检测装置，并且基于检测到的温度改变激光束的输出。 因此，与半导体激光器的温度无关，半导体激光器驱动装置可以适当地改善半导体激光器的响应特性。 因此，半导体激光驱动装置可以确保对光盘的记录性能而不受半导体激光器的温度的影响。