公开(公告)号：US20010033529A1

公开(公告)日：2001-10-25

申请号：US09833147

申请日：2001-04-11

发明人： Yoko Shinohara ,  Yasuyuki Mitsuoka ,  Manabu Oumi ,  Nobuyuki Kasama ,  Hidetaka Maeda ,  Kenji Kato ,  Takashi Niwa

IPC分类号： G11B007/095

CPC分类号： G11B7/22 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0909 ,  G11B7/0916 ,  G11B7/122 ,  G11B7/1387

摘要： A near-field optical head capable of rapid recording and/or reproducing of the information is provided. The near-field optical head condenses the light from the light source and irradiates the light on the minute opening 1. Then, by means of detecting the reflected light from the light condensing mark 501 provided on the circumference of the minute opening 1, the relative position between the light condensing point condensed by the lens and the light condensing mark 501 is detected so that the light condensing point is controlled to follow the light condensing mark 501. Thus, intensive and constant near-field light can be generated in the minute opening 1 and a signal having high S/N can be obtained even by a rapid scanning of the minute opening 1 over the recording medium so that rapid recording and/or reproducing of the information is made possible.

摘要翻译： 提供能够快速记录和/或再现信息的近场光学头。 近场光学头冷凝来自光源的光，并将光照射在微小开口1上。然后，通过检测设置在分钟开口1的圆周上的聚光标记501的反射光， 检测由透镜聚光的聚光点与聚光标记501之间的位置，使得聚光点被控制以跟随聚光标记501.因此，可以在分钟开口中产生密集且恒定的近场光 1，并且即使通过记录介质上的分钟1的快速扫描，也可以获得具有高S / N的信号，使得信息的快速记录和/或再现成为可能。

公开(公告)号：US20010028614A1

公开(公告)日：2001-10-11

申请号：US09756284

申请日：2001-01-09

发明人： Junichi Furukawa

IPC分类号： G11B007/095 ,  G11B007/135

CPC分类号： G11B7/13925 ,  G11B7/0908 ,  G11B7/1369

摘要： An optical information reproduction apparatus is provided that, even when spherical aberration has occurred because of a thickness error in a transmissive substrate of an optical disk, is capable of improving the information reading accuracy by correcting the spherical aberration. The spherical aberration of an optical system is corrected while changing the amount of correction in a state where an objective lens is retained at a position on a focus adjusting orbit where the amplitude level of a reading signal read from an optical recording medium reaches a maximum. The spherical aberration is then corrected by using the amount of correction, which is defined as the final amount of spherical aberration correction, where the amplitude level of a tracking error signal obtained during this time reaches the maximum.

摘要翻译： 提供一种光信息再现装置，即使由于光盘的透射性基板的厚度误差而发生球面像差，也能够通过校正球面像差来提高信息读取精度。 在将物镜保持在从光记录介质读取的读取信号的振幅电平达到最大的聚焦调整轨道上的位置的状态下，改变校正量来校正光学系统的球面像差。 然后通过使用定义为球面像差校正的最终量的校正量校正球面像差，其中在该时间期间获得的跟踪误差信号的幅度电平达到最大值。

公开(公告)号：US20010026505A1

公开(公告)日：2001-10-04

申请号：US09848046

申请日：2001-05-03

申请人： Matsushita Electric Industrial Co., Ltd

发明人： Yasumori Hino ,  Norio Miyatake ,  Tadashi Nakamura

IPC分类号： G11B007/095 ,  G11B007/24

CPC分类号： G11B27/3027 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/261 ,  G11B27/19 ,  Y10S430/146

摘要： An optical disk includes at least one region along a radial direction, and a plurality of tracks provided in the at least one region. The at least one region contains address regions radially positioned on the plurality of tracks. In the address regions, data which is common between two adjacent tracks of the plurality of tracks is recorded at positions aligned along the same radial direction on the two adjacent tracks, and data which is not common between the two adjacent tracks is recorded at positions along different radial directions on the two adjacent tracks.

摘要翻译： 光盘包括沿着径向方向的至少一个区域和设置在该至少一个区域中的多个轨道。 所述至少一个区域包含位于多个轨道上的径向定位的地址区。 在地址区域中，在两个相邻轨道上沿着相同的径向方向对准的位置处记录在多个轨道的两个相邻轨道之间共同的数据，并且在两个相邻轨道之间的位置记录不相同的数据 两个相邻轨道上的不同径向方向。

公开(公告)号：US20010022762A1

公开(公告)日：2001-09-20

申请号：US09789067

申请日：2001-02-20

发明人： Tetsuji Kawashima

IPC分类号： G11B007/095

CPC分类号： G11B7/0037 ,  G11B7/0045 ,  G11B19/12

摘要： A recording and/or reproducing apparatus for recording and/or reproducing data on or from an optical disc, in which the tracking error signal format for a recordable optical disc differs from that for a replay-only optical disc. The recording and/or reproducing apparatus includes a read-out processing unit for reading out data from the optical disc, a write processing unit for writing data on the optical disc and a system controller for managing control to verify the recordable optical disc having data recorded by the write processing unit by a reproducing system conforming to the standard for the replay-only optical disc. The recordable optical disc is verified by the reproducing system for the replay-only optical disc.

摘要翻译： 一种用于在光盘上记录和/或再现数据的记录和/或再现装置，其中用于可记录光盘的跟踪误差信号格式不同于仅用于仅重放光盘的跟踪误差信号格式。 记录和/或再现装置包括：用于从光盘读出数据的读出处理单元，用于在光盘上写入数据的写入处理单元和用于管理控制的系统控制器，以验证具有记录的数据的可记录光盘 由写入处理单元通过符合仅重放光盘的标准的再现系统。 可再现光盘由仅用于重放光盘的再现系统验证。

公开(公告)号：US20010021149A1

公开(公告)日：2001-09-13

申请号：US09861544

申请日：2001-05-22

发明人： Kazuo Watabe

IPC分类号： G11B007/095

CPC分类号： G11B7/0901 ,  G11B7/005 ,  G11B7/24085

摘要： An optical disk apparatus comprising a light source for emitting a light beam, an optical system for focusing the light beam to form a beam spot on the optical disk, a tracking unit for detecting the light reflected from the optical disk to generate a tracking error signal from the light by a differential phase detection method, and move the beam spot in accordance with the tracking error signal, and an information-readout section for reading out information from the optical disk. To achieve readout compatibility between a high-definition DVD and a DVD-ROM, a predetermined delay is given relatively to first and second signals obtained from two pairs of regions arranged in two crossing diagonals of a quadrant photodetector, thereby shifting the beam spot from the centerline of the pit stream in the radial direction of a DVD-ROM, in order to read out information from the DVD-ROM.

摘要翻译： 一种光盘装置，包括用于发射光束的光源，用于聚焦光束以在光盘上形成光斑的光学系统，用于检测从光盘反射的光以产生跟踪误差信号的跟踪单元 通过差分相位检测方法从光照射，并根据跟踪误差信号移动束斑;以及信息读出部，用于从光盘读出信息。 为了实现高分辨率DVD和DVD-ROM之间的读出兼容性，相对于从配置在象限光检测器的两个交叉对角线中的两对区域获得的第一和第二信号给出预定的延迟，从而将波束点从 DVD-ROM的径向方向上的凹坑流的中心线，以便从DVD-ROM中读出信息。

公开(公告)号：US20010008505A1

公开(公告)日：2001-07-19

申请号：US09759235

申请日：2001-01-16

发明人： Tatsuki Wade ,  Hiroshi Sugihara

IPC分类号： G11B007/095

CPC分类号： G11B7/0932 ,  G11B7/22

摘要： In an optical pickup device, wires 16A through 16D resiliently support a lens holder 12 in a cantilever fashion. Of the wires, wires 16A and 16C arranged so as to overlap when viewed in a tracking direction are fixed together by heat sealing. The wires 16B and 16D are arranged independently of each other. In each of the wires 16A through 16D, a portion 166 close to the base end of the wire is squeezed from a focusing direction, and a portion 167 close to the tip end of the wires is squeezed from the tracking direction.

摘要翻译： 在光拾取装置中，导线16A至16D以悬臂方式弹性地支撑透镜架12。 在电线中，沿跟踪方向观察而布置为重叠的电线16A和16C通过热封而固定在一起。 电线16B和16D彼此独立地布置。 在每条导线16A至16D中，从聚焦方向挤压靠近导线的基端的部分166，并且从跟踪方向挤压靠近导线末端的部分167。

公开(公告)号：US20010007543A1

公开(公告)日：2001-07-12

申请号：US09754381

申请日：2001-01-05

申请人： ROHM CO., LTD.

发明人： Haruo Tanaka ,  Masahiko Tsumori

IPC分类号： G11B007/095 ,  G11B007/135

CPC分类号： G11B7/1372 ,  G11B7/0909 ,  G11B7/123

摘要： A light emitting portion (1) and an objective lens (3) for collecting a light of the light emitting portion are provided. The light receiving portion (2) is provided in the vicinity of the light emitting portion (1) such that the light can be collected by the objective lens and the light reflected by an optical disk (10) to be an object can be detected. The light emitting portion and the light receiving portion are formed to get in a range of 1.22 null/NA (beam waist BW) wherein a numerical aperture of the objective lens is represented by NA and a wavelength of the light emitting portion is represented by null or the light receiving portion is multi-split such that a focal shift of a beam having an astigmatism formed thereon can be detected. As a result, it is possible to obtain a light receiving and emitting compound element capable of surely detecting a focal position without adjusting a positional relationship between the light emitting portion and the light receiving portion and an optical pick-up device capable of being easily assembled and of detecting and correcting a shift in a focus or a tracking with a high sensitivity.

摘要翻译： 提供了用于收集发光部分的光的发光部分（1）和物镜（3）。 光接收部分（2）设置在发光部分（1）的附近，使得可以通过物镜收集光，并且可以检测由作为对象的光盘（10）反射的光。 光发射部分和光接收部分形成为1.22兰姆/ NA（束腰BW）的范围，其中物镜的数值孔径由NA表示，并且发光部分的波长由羔羊 或者光接收部分被多分割，使得可以检测到其上形成有像散的光束的焦点偏移。 结果，可以获得能够可靠地检测焦点位置而不调节发光部分和光接收部分之间的位置关系的光接收和发射复合元件以及能够容易地组装的光学拾取装置 并且以高灵敏度检测和校正焦点偏移或跟踪。

公开(公告)号：US20010000997A1

公开(公告)日：2001-05-10

申请号：US09752435

申请日：2001-01-03

发明人： Kunio Yamamiya

IPC分类号： G11B007/095

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B7/0857 ,  G11B7/08582 ,  G11B7/0908 ,  G11B11/10558 ,  G11B11/10571 ,  G11B11/10576 ,  G11B11/10595 ,  G11B17/0288 ,  G11B19/06 ,  G11B19/2009 ,  G11B19/2054

摘要： An apparatus for recording and/or reproducing information on and/or from a magneto-optical disk including an optical head for projecting a laser beam onto a magneto-optical disk and receiving the laser beam reflected by the disk, an up-down block arranged movably between a lower position and an upper position, an up-down motor for moving said up-down block up and down, a turntable for supporting the disk and a spindle motor secured to said up-down block and having a driving shaft coupled with said turntable for rotating the turntable, a position detecting device for detecting a position of said up-down block to derive a position signal when the up-down block is driven into the upper position, a rotation detecting device for detecting a rotation of said optical information record disk to derive a rotation signal when the optical information record disk is rotated at a predetermined revolving speed, and a control device for initiating a focus control for moving said objective lens and turntable relative to each other in accordance with said position signal and rotation signal.

公开(公告)号：US20040218485A1

公开(公告)日：2004-11-04

申请号：US10769959

申请日：2004-02-02

发明人： Jen-Yu Hsu ,  Hsiang-Yi Fu ,  Tun-Chieh Lee ,  Fu-Hsiang Chen ,  Yao-Chou Tsai

IPC分类号： G11B007/095

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B7/121

摘要： A method of disc protection during servo focusing is disclosed. First, the disc device performs a servo focusing on a disc at a first speed, and records the first focusing time accordingly. Afterward, the disc device calculates a second focusing time required for another servo focusing if the disc requires re-focusing, and re-focuses the disc if the second focusing time exceeds the first focusing time.

公开(公告)号：US20040196768A1

公开(公告)日：2004-10-07

申请号：US10756204

申请日：2004-01-13

申请人： FUJITSU LIMITED

发明人： Ichiro Watanabe

IPC分类号： G11B007/09 ,  G11B007/095

CPC分类号： G11B21/106 ,  G11B5/59627 ,  G11B7/00 ,  G11B7/0901 ,  G11B7/0941

摘要： A follow-up control system follows up a head of a storage device to a storage medium. A sine wave signal learning section (82) which learns sine wave signals according to follow-up error signals which are input to a feedback control system (80), and performs time lead compensation corresponding to a delay of the feedback system (80), is provided. Since the time lead compensation is used for the sine wave signal learning model which can learn at high-speed, frequency disturbance of high frequency, for which phase lag must be considered, can be a compensation target, and the present invention contributes to the improvement of follow-up accuracy of the storage device.

摘要翻译： 后续控制系统将存储设备的头部跟随到存储介质。 正弦波信号学习部（82）根据输入到反馈控制系统（80）的跟随误差信号来学习正弦波信号，并进行与反馈系统（80）的延迟对应的时间引导补偿， 被提供。 由于时间引线补偿用于可以在高速，高频频率干扰下学习的正弦波信号学习模型，必须考虑相位滞后，可以作为补偿目标，本发明有助于改进 的存储设备的后续准确性。