公开(公告)号：JP2009163880A

公开(公告)日：2009-07-23

申请号：JP2009108453

申请日：2009-04-27

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI ,  NABETA MASAOMI

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

CPC classification number: G11B7/08511 ,  G11B7/08529 ,  G11B7/24038 ,  G11B2007/0013

Abstract: PROBLEM TO BE SOLVED: To realize a stable focus jump operation in a multi-layered optical disc, even when a waveform of an S-curve of a focus error signal becomes asymmetric between positive and negative due to aberration caused by fluctuation of a multilayer optical disk substrate thickness, or the level of the S-curve fluctuates due to reflectance fluctuation. SOLUTION: A focus jump means (DSP 51) performs acceleration processing to move an objective lens (13) from one recording layer of a multi-layered optical disc to another recording layer, standby processing, and deceleration processing to stop the movement of the objective lens. In the acceleration processing, the impulse of an acceleration parameter applied to move the objective lens is made greater than the impulse of a deceleration pulse to stop the objective lens. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了在多层光盘中实现稳定的聚焦跳跃操作，即使当由于波动引起的像差引起的聚焦误差信号的S曲线的波形在正负两者之间变得不对称时， 多层光盘基板厚度或S曲线的水平由于反射波动而波动。 解决方案：聚焦跳跃装置（DSP51）执行加速处理以将物镜（13）从多层光盘的一个记录层移动到另一记录层，待机处理和减速处理以停止移动 的物镜。 在加速处理中，使用于移动物镜的加速度参数的脉冲大于减速脉冲的脉冲以停止物镜。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2004039120A

公开(公告)日：2004-02-05

申请号：JP2002195420

申请日：2002-07-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI ,  YAMAUCHI KIYOSHI

IPC: G11B7/125 ,  G11B7/135 ,  H01S5/024

Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup capable of efficiently radiating heat generated in a semiconductor laser diode, an optical integrated element, a light emitting/receiving element, and a light emitting device. SOLUTION: When a drive signal is supplied to the semiconductor laser diode 1204 through a 1st conductive layer 42 of a flexible substrate 40, the diode 1204 is driven and starts light emitting. Heat generated in the diode 1204 due to the light emitting is transmitted to a radiating plate 1202. The heat transmitted to the radiating plate 1202 is transmitted to a holder (pickup casing) 50 and radiated from the holder (pickup casing) 50 and the heat is transmitted to the 1st conductive layer 42 of the flexible substrate 40 through a side plate 1202A, further transmitted to the 2nd conductive layer 44 through a conductive area 46 and radiated from the 2nd conductive layer 44. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003016660A

公开(公告)日：2003-01-17

申请号：JP2001197886

申请日：2001-06-29

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI ,  ICHIMURA ISAO

IPC: G11B7/085 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To stably perform the focus jump of an optical spot with respect to an optical recording medium having a plurality of recording layers.
SOLUTION: The device which records and reproduces information on a multiplayer disk having a plurality of recording layers is provided with an optical unit for correcting the spherical aberration of an expander lens composed of two lenses group and of a liquid crystal element or the like, and the correction state of the optical unit is so controlled that the spherical aberration is excellently corrected with respect to the recording layer which is to be preliminarily focused when a focus servo of the optical pickup is drawn in. Further, the optical unit for correcting the spherical aberration is held before the beginning of the focus jump in a state that the spherical aberration is corrected as far as possible with respect to the target recording layer in a range in which the present focus servo is not coming off.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了稳定地执行相对于具有多个记录层的光记录介质的光点的聚焦跳跃。 解决方案：在具有多个记录层的多人盘上记录和再现信息的装置设置有用于校正由两个透镜组和液晶元件等组成的扩展器透镜的球面像差的光学单元，以及 光学单元的校正状态得到如此控制，使得当吸收光拾取器的聚焦伺服时，相对于要预先聚焦的记录层，球面像差被良好地校正。此外，用于校正球面像差的光学单元 在聚焦伺服不脱离的范围内，在目标记录层的尽可能地校正球面像差的状态下，在聚焦跳跃开始之前保持像差。

公开(公告)号：JP2001126286A

公开(公告)日：2001-05-11

申请号：JP30547999

申请日：1999-10-27

Applicant: SONY CORP

Inventor： MANO KIYOSHI

IPC: G11B7/095 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup and disk drive assembly which can correct the radial skew being the largest cause for the occurrence of an aberration while suppressing the unnecessary inclination of an objective lens in a tangential skew direction and can reduce the weight of a moving section mounted with the objective lens. SOLUTION: This optical pickup has an actuator base 21 which is disposed at the optical pickup 2, a bobbin 13 which is supported tiltably relative to the actuator base 21 and is mounted with the objective lens 12, a drive means which tilts the bobbin 13, optical sensors 27 and 28 which detect the inclination quantity of the recording surface with respect to the actuator base 21, optical sensors 25 and 26 which detect the inclination quantity of the bobbin 12 with respect to the actuator base 21 and a titling control means which tilts the moving section in such a manner that the angle of the optical axis of the objective lens 12 with respect to the recording surface is kept constant.

公开(公告)号：JP2009176395A

公开(公告)日：2009-08-06

申请号：JP2008124951

申请日：2008-05-12

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI

IPC: G11B7/125 ,  H05K1/02

Abstract: PROBLEM TO BE SOLVED: To reduce both flexural rigidity and characteristic impedance. SOLUTION: The signal transmission substrate 36 is constructed in such a manner that in a transmission part 36B, a conductor layer 52 having three signal lines 52S and four ground lines 52G alternately arranged in a width direction is held between a base layer 51 and a cover layer 53, the four ground lines 52G are electrically interconnected at a driver mount part 36A and a diode mount part 36C based on the wiring patterns of the conductor layer 52, and the three signal lines 52S are electrically interconnected at the driver mount part 36A and the diode mount part 36C via jumper lines 55A and 55C. Thus, the signal transmission substrate 36 enables reduction of characteristic impedance almost equal to differential resistance of a laser diode 38 while reducing flexural rigidity of the transmission part 36B to a low level and setting a gap G2 between each signal line 52S and each ground line 52G to be within a range in which the gap is relatively easily manufactured. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：减少弯曲刚度和特性阻抗。 解决方案：信号传输基板36被构造成使得在透射部分36B中，具有三个信号线52S的导体层52和沿宽度方向交替布置的四个接地线52G保持在基底层51 和覆盖层53，四个接地线52G基于导体层52的布线图案在驱动器安装部36A和二极管安装部36C处电互连，并且三个信号线52S在驱动器安装 部分36A和二极管安装部分36C，经由跳线55A和55C。 因此，信号传输基板36能够将发送部36B的弯曲刚性降低到几乎等于激光二极管38的差分电阻的特性阻抗，并且在各信号线52S与各接地线52G之间设定间隙G2 在间隙相对容易制造的范围内。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009134232A

公开(公告)日：2009-06-18

申请号：JP2008053800

申请日：2008-03-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： OKAMOTO YOSHIKI ,  SEO KATSUHIRO ,  MANO KIYOSHI

IPC: G02B5/18 ,  G11B7/125 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To improve light resistance and to change diffraction efficiency to high speed. SOLUTION: A variable diffraction grating 10 in which a grating surface 11A of a diffraction grating 11 formed with a grating g11 of a period (c) and a grating surface 12A of a diffraction grating 12 formed with a grating g12 of a period (c) are arranged to face each other, can act as a diffraction grating of different diffraction efficiency by acting as a diffraction grating of phase depth ϕ1 represented by an expression (1), to light beams incident from a z-direction in a first state in which the positions of crest parts of the grating g11 and grating g12 are adjusted to each other with respect to the z-direction while acting as a diffraction grating of phase depth ϕ2 represented by an expression (3) in a second state in which the positions of the crest parts and trough parts of the grating g11 and grating g12 correspond to each other by moving the diffraction grating 11 in an x-direction by a width (h), which is the half of the period (c), with respect to the diffraction grating 12. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提高耐光性并将衍射效率改变为高速。 解决方案：一种可变衍射光栅10，其中形成有周期（c）的光栅g11的衍射光栅11的光栅表面11A和形成有周期的光栅g12的衍射光栅12的光栅表面12A （c）被布置为彼此面对，可以通过充当由表达式（1）表示的相位深度φ1的衍射光栅，作为第一（z）方向入射的光束，作为具有不同衍射效率的衍射光栅 其中光栅g11和光栅g12的波峰部分的位置相对于z方向相互调整，同时在第二状态下用作由表达式（3）表示的相位深度φ2的衍射光栅，其中 光栅g11和光栅g12的波峰部分和波谷部分的位置通过将衍射光栅11沿x方向移动宽度（h）彼此对应，宽度（h）是周期（c）的一半，与 相对于衍射光栅 12.版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008065913A

公开(公告)日：2008-03-21

申请号：JP2006243379

申请日：2006-09-07

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI

IPC: G11B7/09

Abstract: PROBLEM TO BE SOLVED: To provide a photoelectric conversion element integrated circuit, capable of reducing the output terminals by efficiently multiplexing only a control signal whose phase characteristics are not so important and outputting it, and to provide an optical pickup device, a control signal generator, a drive control device, an optical recording medium drive device, and a control method for the same. SOLUTION: The photoelectric conversion element integrated circuit is provided with photodetectors 131 to 136 for receiving rays of light, to convert them into electrical signals, a generation means for recording information in an optical recording medium, based on the electric signals and generating a control signal to reproduce the information recorded in the optical recording medium, a multiplexing means for multiplexing the control signal in a time axis direction, and an output terminal for outputting the time-division multiplexed control signal. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供一种光电转换元件集成电路，其能够仅通过有效地复用相位特性不那么重要并输出的控制信号来减少输出端子，并且提供光学拾取装置， 控制信号发生器，驱动控制装置，光记录介质驱动装置及其控制方法。 解决方案：光电转换元件集成电路设置有用于接收光线的光电检测器131至136，以将其转换成电信号;基于电信号在光记录介质中记录信息的产生装置，并产生 用于再现记录在光学记录介质中的信息的控制信号，用于在时间轴方向上复用控制信号的多路复用装置和用于输出时分复用控制信号的输出端。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006196132A

公开(公告)日：2006-07-27

申请号：JP2005009286

申请日：2005-01-17

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI

IPC: G11B7/09

Abstract: PROBLEM TO BE SOLVED: To realize an optical disk drive of simple constitution capable of performing a more accurate focus control with respect to the optical disks of multiple kinds. SOLUTION: By changing a resolution at an analog-digital conversion of a focus error signal in accordance with the kind of an optical disk to be played back, the resolution can be set to values suitable for respective optical disks without separating optical paths of return lights of laser beam ejected from respective light sources, therefore, a discretization error at the analog-digital conversion can be suppressed to a value suitable for respective optical disk without complicating the constitution of an optical system. Thus, the optical disk drive of simple constitution capable of performing the focus control suitable for respective optical disks of multiple kinds is realized. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了实现能够对多种光盘执行更精确的聚焦控制的简单结构的光盘驱动器。 解决方案：通过根据要重放的光盘的种类，在聚焦误差信号的模数转换时改变分辨率，可以将分辨率设置为适合各光盘而不分离光路的值 从相应的光源喷射的激光束的返回光，因此，可以将模拟数字转换时的离散化误差抑制到适合于各个光盘的值，而不会使光学系统的结构复杂化。 因此，可以实现能够执行适合于各种各样的光盘的聚焦控制的简单结构的光盘驱动器。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005135491A

公开(公告)日：2005-05-26

申请号：JP2003369338

申请日：2003-10-29

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI ,  KOBAYASHI TAKASHI ,  KATO NORIYUKI

IPC: G11B7/22 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To prevent deterioration in quality of a reproducing signal, even when the characteristics of a laser diode vary. SOLUTION: The optical pickup 1, is provided with: a step SP2 for measuring the light amount P1 of an optical beam emitted from a laser diode 3; a step SP4 for measuring the light amount P2 of the optical beam emitted from the laser diode 3 and sequentially transmitted through a 1/2 wavelength plate 5, an aperture 10, a polarization beam splitter 8, and an aperture 14; and a step SP4 for changing the transmittance at the polarization beam splitter 8 by adjusting the rotational angle θ of the 1/2 wavelength plate 5 and for adjusting the ratio of the light amount P2 to the light amount P1 at a prescribed value. Accordingly, the variation in the optical coupling efficiency of the optical pickup 1 is suppressed by adjusting the rotational angle of the 1/2 wavelength plate 5. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：即使当激光二极管的特性变化时，为了防止再现信号的质量劣化。 光拾取器1设置有：用于测量从激光二极管3发射的光束的光量P1的步骤SP2; 用于测量从激光二极管3发射并依次透过1/2波长板5，光圈10，偏振分束器8和光圈14的光束的光量P2的步骤SP4; 以及步骤SP4，用于通过调整1/2波长板5的旋转角度θ并将光量P2与光量P1的比率调整到规定值来改变偏振分束器8的透射率。 因此，通过调节1/2波长板5的旋转角来抑制光学拾取器1的光耦合效率的变化。（C）2005，JPO和NCIPI

公开(公告)号：JP2005116547A

公开(公告)日：2005-04-28

申请号：JP2003344666

申请日：2003-10-02

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MANO KIYOSHI

IPC: G11B7/125 ,  H01S5/0683

CPC classification number: G11B7/126

Abstract: PROBLEM TO BE SOLVED: To realize an optical pickup which enables both an average light volume and a peak light volume to be controlled with high accuracy. SOLUTION: A semiconductor laser diode LD2 is driven by a high-frequency drive current HI2, and the optical pickup 23 is equipped with a laser drive circuit 40 which drives the laser diode LD2 to emit a high-frequency light beam L1. An APC circuit 40A detects the average light volume of the high-frequency light beam L1 and feedback-controls the drive current I2 on the basis of the above average light volume, and a superimposition amplitude control circuit 40B detects the peak light volume of the high-frequency light beam L1 and feedback-controls the amplitude A of the high-frequency drive current HI2 on the basis of the above peak light volume independently of control by the APC circuit 40A. The average light volume and peak light volume of the high-frequency light beam L1 emitted from the semiconductor laser diode LD2 can be separately controlled, so that both the average light volume and peak light volume of the light beam L1 can be surely controlled. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：实现能够以高精度控制平均光体积和峰值光体积的光学拾取器。 解决方案：半导体激光二极管LD2由高频驱动电流HI2驱动，光拾取器23配备有驱动激光二极管LD2发射高频光束L1的激光驱动电路40。 APC电路40A检测高频光束L1的平均光量，并基于上述平均光量对驱动电流I2进行反馈控制，叠加幅度控制电路40B检测高频光束L1的峰值光量 基于上述峰值光量，独立于APC电路40A的控制，频率光束L1和反馈控制高频驱动电流HI2的振幅A。 可以分别控制从半导体激光二极管LD2发射的高频光束L1的平均光量和峰值光量，从而可以可靠地控制光束L1的平均光量和峰值光体积。 版权所有（C）2005，JPO＆NCIPI