公开(公告)号：US20130083393A1

公开(公告)日：2013-04-04

申请号：US13536996

申请日：2012-06-28

Applicant: Yoshihiro KANDA

Inventor： Yoshihiro KANDA

IPC: G02B5/30

CPC classification number: H04B10/2569 ,  G02B27/286

Abstract: A polarization mode dispersion (PMD) generating apparatus includes a polarization plane controller; a unit function block including a first differential group delay (DGD) generator, a first mode mixer, and a second DGD generator, a second mode mixer and a reflective mirror, which are arranged in this order from the input side of input light free from PMD. Part of the first and second DGD generators is disposed on a driven stage to modify the optical path length. The input light has polarization converted by the polarization plane controller and is inputted to the first DGD generator to propagate back and forth on an optical path from the unit function block through the second mode mixer to the reflective mirror. In the PMD-generating apparatus, the driven stage adjusts a DGD amount between orthogonal eigen-polarization modes generated in the first and second DGD generators on the basis of an applicable wavelength band.

Abstract translation: 偏振模色散（PMD）发生装置包括偏振面控制器; 包括第一差分组延迟（DGD）发生器，第一模式混频器和第二DGD发生器，第二模式混频器和反射镜的单元功能块，其从输入光的输入侧以此顺序排列， PMD。 第一和第二DGD发生器的一部分设置在驱动级上以改变光路长度。 输入光由偏振面控制器进行极化转换，并被输入到第一DGD发生器，以在从单元功能块通过第二模式混合器到反射镜的光路上来回传播。 在PMD生成装置中，驱动级基于适用的波长带来调整在第一和第二DGD发生器中产生的正交特征极化模式之间的DGD量。

公开(公告)号：US07916607B2

公开(公告)日：2011-03-29

申请号：US12129153

申请日：2008-05-29

Applicant: Yoshihiro Kanda ,  Yoshihisa Fukushima ,  Masaru Odagiri

Inventor： Yoshihiro Kanda ,  Yoshihisa Fukushima ,  Masaru Odagiri

IPC: G11B7/00

CPC classification number: G11B20/00086 ,  G11B7/007 ,  G11B19/122 ,  G11B20/00115 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00268 ,  G11B20/00449

Abstract: In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.

Abstract translation: 在已被调制后记录了属性数据的可记录数据存储介质中，并且记录了可以通过从属性数据生成的加密密钥可解码的数据的属性数据优选地通过与所应用的不同的方法进行调制 到只读数据存储介质。 然后，不能区分可记录数据存储介质和只读数据存储介质的光盘驱动器不能读取可记录数据存储介质。 因此，更多的驱动器应该具有识别给定数据存储介质的类型的功能，并且应该巩固版权保护功能。

公开(公告)号：US20100226637A1

公开(公告)日：2010-09-09

申请号：US12718115

申请日：2010-03-05

Applicant: Yoshihiro KANDA ,  Yusuke Adachi

Inventor： Yoshihiro KANDA ,  Yusuke Adachi

IPC: G03B3/10 ,  H01L41/04 ,  G02B7/02

CPC classification number: G03B3/10 ,  G02B7/08 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/025 ,  H02N2/026 ,  H02N2/062

Abstract: A drive unit includes an ultrasonic actuator, which has an actuator body formed using a piezoelectric element and outputs a driving force by vibration of the actuator body, and a control section which induces vibration in the actuator body by supplying a plurality of AC voltages to the piezoelectric element. The control section provides, in combination, phase control, which controls the driving force by adjusting a phase difference between a first and a second AC voltages, and wave-number control, which controls the driving force by adjusting the wave number included in a predetermined burst period in each AC voltage.

Abstract translation: 驱动单元包括超声波致动器，该超声波致动器具有使用压电元件形成的致动器主体，并且通过致动器主体的振动输出驱动力;以及控制部，其通过向致动器主体提供多个AC电压而引起振动 压电元件 控制部组合地提供相位控制，其通过调节第一和第二AC电压之间的相位差来控制驱动力，以及波数控制，其通过调节包括在预定的 每个交流电压的突发周期。

公开(公告)号：US07746755B2

公开(公告)日：2010-06-29

申请号：US12129146

申请日：2008-05-29

Applicant: Yoshihiro Kanda ,  Yoshihisa Fukushima ,  Masaru Odagiri

Inventor： Yoshihiro Kanda ,  Yoshihisa Fukushima ,  Masaru Odagiri

IPC: G11B7/00

CPC classification number: G11B20/00086 ,  G11B7/007 ,  G11B19/122 ,  G11B20/00115 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00268 ,  G11B20/00449

Abstract: In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.

Abstract translation: 在已被调制后记录了属性数据的可记录数据存储介质中，并且记录了可以通过从属性数据生成的加密密钥可解码的数据的属性数据优选地通过与所应用的不同的方法进行调制 到只读数据存储介质。 然后，不能区分可记录数据存储介质和只读数据存储介质的光盘驱动器不能读取可记录数据存储介质。 因此，更多的驱动器应该具有识别给定数据存储介质的类型的功能，并且应该巩固版权保护功能。

公开(公告)号：US20080267049A1

公开(公告)日：2008-10-30

申请号：US12129146

申请日：2008-05-29

Applicant: Yoshihiro Kanda ,  Yoshihisa Fukushima ,  Masaru Odagiri

Inventor： Yoshihiro Kanda ,  Yoshihisa Fukushima ,  Masaru Odagiri

IPC: G11B7/24

CPC classification number: G11B20/00086 ,  G11B7/007 ,  G11B19/122 ,  G11B20/00115 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00268 ,  G11B20/00449

Abstract: In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.

公开(公告)号：US06925037B2

公开(公告)日：2005-08-02

申请号：US10386612

申请日：2003-03-12

Applicant: Takashi Kishimoto ,  Takeharu Yamamoto ,  Yoshihiro Kanda ,  Jun Kikuchi

Inventor： Takashi Kishimoto ,  Takeharu Yamamoto ,  Yoshihiro Kanda ,  Jun Kikuchi

IPC: G11B7/085 ,  G11B7/00

CPC classification number: G11B7/08529 ,  G11B7/08541

Abstract: An optical disc drive includes: an optical head with an actuator and a photodetector; a tracking driver outputting a drive signal to the actuator; a first tracking error signal generator for generating a first tracking error signal based on an output signal of the photodetector; first and second lens position control sections for respectively outputting first and second lens position control signals to the tracking driver; and a selector for selectively supplying the first tracking error signal to the first or second lens position control section according to a moving velocity of the optical head during a seek operation. The first lens position control signal is obtained by extracting signal components, of which the frequencies are equal to or lower than a predetermined frequency, from the first tracking error signal. The second lens position control signal is obtained by extracting DC components of the first tracking error signal at on-track points thereof.

Abstract translation: 光盘驱动器包括：具有致动器和光电检测器的光学头; 向所述致动器输出驱动信号的跟踪驱动器; 第一跟踪误差信号发生器，用于基于光电检测器的输出信号产生第一跟踪误差信号; 第一和第二透镜位置控制部分，用于分别向跟踪驱动器输出第一和第二透镜位置控制信号; 以及选择器，用于根据拾取操作期间光头的移动速度，选择性地将第一跟踪误差信号提供给第一或第二透镜位置控制部。 通过从第一跟踪误差信号中提取频率等于或低于预定频率的信号分量来获得第一透镜位置控制信号。 第二透镜位置控制信号通过在其轨迹点上提取第一跟踪误差信号的DC分量来获得。

公开(公告)号：US06751176B1

公开(公告)日：2004-06-15

申请号：US09462718

申请日：2000-01-12

Applicant: Yoshihiro Kanda ,  Mitsurou Moriya ,  Mitsuteru Fujimoto

Inventor： Yoshihiro Kanda ,  Mitsurou Moriya ,  Mitsuteru Fujimoto

IPC: G11B700

CPC classification number: G11B7/00736 ,  G11B7/0037 ,  G11B7/085 ,  G11B20/1217 ,  G11B27/034 ,  G11B27/32 ,  G11B27/329 ,  G11B2020/1229 ,  G11B2020/1231 ,  G11B2020/1265 ,  G11B2020/1267 ,  G11B2020/1277 ,  G11B2020/1285 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  G11B2220/2566 ,  G11B2220/2575

Abstract: An optical disc that has a recognition mark area behind a recorded area and in which the last data in the recorded area is stably accessed, the recognition mark area can be accessed without bringing about an abnormal state, and the first data in a succeeding recorded area, if it exists, is stably accessed. An unrecorded area (5) is provided outside the recorded area (4) of the optical disc (1). A mark area (6) is provided between the recorded area (4) and unrecorded area (5). A recognition mark area (6d) is provided in the mark area (6) in order to recognize the boundary between the recorded area (4) and the unrecorded area (5). In the mark area (6), first and second buffer areas (6b and 6c) are provided respectively in front of and behind the recognition mark area (6d). The width of the first buffer area (6b) is preset to be wider than the access error when the last data (4a) in the recorded area (4) is accessed, and the width of the second buffer area (6c) is preset to be wider than the access error when the recognition mark area (6d) is accessed.

Abstract translation: 一种在记录区域后面具有识别标记区域并且其中记录区域中的最后数据被稳定地访问的光盘，可以访问识别标记区域而不引起异常状态，并且在后续记录区域中的第一数据 如果存在，则被稳定地访问。 未记录区域（5）设置在光盘（1）的记录区域（4）的外部。 在记录区域（4）和未记录区域（5）之间设置有标记区域（6）。 识别标记区域（6d）被设置在标记区域（6）中，以识别记录区域（4）和未记录区域（5）之间的边界。 在标记区域（6）中，第一和第二缓冲区域（6b和6c）分别设置在识别标记区域（6d）的前面和后面。 当访问记录区域（4）中的最后数据（4a）时，第一缓冲区域（6b）的宽度被预设为比访问错误宽，并且第二缓冲区域（6c）的宽度被预设为 比识别标记区域（6d）被访问时的访问错误宽。

公开(公告)号：US08160438B2

公开(公告)日：2012-04-17

申请号：US12771149

申请日：2010-04-30

Applicant: Dai Shintani ,  Kenichi Honjo ,  Yoshihiro Kanda

Inventor： Dai Shintani ,  Kenichi Honjo ,  Yoshihiro Kanda

IPC: G03B15/03

CPC classification number: G03B15/05 ,  G03B2215/051 ,  H04N5/2256 ,  H04N5/2354 ,  H04N2101/00

Abstract: An imaging device disclosed herein is a device for acquiring image data about a subject, comprising an image acquisition section, a housing, a flash device, and a flash controller. The image acquisition section is configured to continuously acquire a plurality of image data from an optical image of a subject. The housing holds the image acquisition section. The flash device is configured to emit a flash of light, with which the emission angle of the flash light with respect to the housing can be varied. The flash controller is configured to control the flash device so that the emission angle of the flash light when the plurality of image data are being continuously acquired will differ for at least two image data out of the plurality of image data.

Abstract translation: 本文公开的成像装置是用于获取关于被摄体的图像数据的装置，包括图像获取部分，壳体，闪光装置和闪光控制器。 图像获取部被配置为从被摄体的光学图像连续地获取多个图像数据。 外壳保持图像采集部分。 闪光装置被配置为发射闪光，闪光的相对于壳体的发射角可以改变。 闪光灯控制器被配置为控制闪光灯设备，使得当连续获取多个图像数据时闪光灯的发射角度对于多个图像数据中的至少两个图像数据将是不同的。

公开(公告)号：US20100046339A1

公开(公告)日：2010-02-25

申请号：US12441987

申请日：2007-09-19

Applicant: Yoshihiro Kanda ,  Mayumi Yasukouchi ,  Dai Ichiryu

Inventor： Yoshihiro Kanda ,  Mayumi Yasukouchi ,  Dai Ichiryu

IPC: G11B20/00

CPC classification number: G11B20/10009 ,  G11B2220/2537

Abstract: The present invention solves the problems that, in a detection circuit which is mostly configured by analog circuits, the chip size cannot be reduced even using a highly-precise processing, there are many external capacitors and terminals thereof, a plurality of high-speed and large-scale AD converters are required for digitization, the detection precision of a small amplitude signal superimposed on an RF signal is deteriorated, and high-speed sample/hold is required.A significant deletion of analog circuits can be realized by generating a digital detection signal directly from an analog RF signal using a simple analog circuit configuration of a detection control means including a comparator, a threshold DAC for setting a threshold value, and an integrator.

Abstract translation: 本发明解决了在大多由模拟电路构成的检测电路中，即使使用高精度的处理也不能减小芯片尺寸，因此存在许多外部电容器及其端子，多个高速和 需要大规模AD转换器进行数字化处理，叠加在RF信号上的小振幅信号的检测精度降低，需要高速采样/保持。 通过使用包括比较器，用于设置阈值的阈值DAC和积分器的检测控制装置的简单模拟电路配置，可以通过从模拟RF信号直接生成数字检测信号来实现模拟电路的显着删除。

公开(公告)号：US20090296549A1

公开(公告)日：2009-12-03

申请号：US12130801

申请日：2008-05-30

Applicant: Kei Kobayashi ,  Masayoshi Igarashi ,  Yoshihiro Kanda

Inventor： Kei Kobayashi ,  Masayoshi Igarashi ,  Yoshihiro Kanda

IPC: G11B7/00 ,  G11B5/58

CPC classification number: G11B5/59627 ,  G11B7/08517 ,  G11B7/0948 ,  G11B7/0953

Abstract: The precision of a direction detection signal DIR is judged from the duty ratio of the direction detection signal DIR, and the direction detection signal DIR which is used for track search control or tracking pull-in control is judged as valid or invalid according to the precision, thereby to improve the precision of the track search control or the tracking pull-in control. Therefore, even when the direction detection is not performed accurately due to a difference in the reflected light quantity on the optical disk, a defect on the optical disk, a delay in the track cross speed during search, or a delay in the detection circuit, the track search control and the tracking pull-in control can be performed with stability.

Abstract translation: 根据方向检测信号DIR的占空比来判断方向检测信号DIR的精度，并且用于轨道搜索控制或跟踪拉入控制的方向检测信号DIR根据精度被判定为有效或无效 从而提高轨道搜索控制或跟踪拉入控制的精度。 因此，即使由于光盘上的反射光量的差异导致方向检测不准确，光盘上的缺陷，检索期间的轨道交叉速度的延迟或检测电路的延迟， 可以稳定地执行轨道搜索控制和跟踪拉入控制。