公开(公告)号：US08243566B2

公开(公告)日：2012-08-14

申请号：US12560082

申请日：2009-09-15

申请人： Takeyoshi Kataoka ,  Nobuo Nakai

发明人： Takeyoshi Kataoka ,  Nobuo Nakai

IPC分类号： G11B7/00

CPC分类号： G11B7/13927 ,  G11B7/0956 ,  G11B7/1378

摘要： There is a need to provide correction of a temperature characteristic of an optical pickup of an optical disk recording/reproducing apparatus, in which items of the optical pickup including spherical aberration may be improved in temperature characteristic. To achieve the need, an optical disk drive is characterized by correcting a spherical aberration correction element when variation of a signal from the control circuit to the driver and/or a tracking or focusing error signal supplied to the controller has a value equal to or more than a predetermined value.

摘要翻译： 需要提供光盘记录/再现装置的光学拾取器的温度特性的校正，其中包括球面像差的光学拾取器的项目可以在温度特性方面得到改善。 为了实现这一需要，光盘驱动器的特征在于当从控制电路到驱动器的信号的变化和/或提供给控制器的跟踪或聚焦误差信号的值等于或等于 超过预定值。

公开(公告)号：US08184509B2

公开(公告)日：2012-05-22

申请号：US12760592

申请日：2010-04-15

申请人： Toshiteru Nakamura ,  Nobuo Nakai ,  Shigeharu Kimura

发明人： Toshiteru Nakamura ,  Nobuo Nakai ,  Shigeharu Kimura

IPC分类号： G11B7/00 ,  G11B27/36 ,  G11B7/135

CPC分类号： G11B7/1381 ,  G11B7/0906 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/133 ,  G11B2007/0013

摘要： Of the beams reflected by an optical disk, only peripheral beams excluding the push-pull region are used to generate a DPD signal in order to optimize internal wire connections among the light receiving areas of the optical detector and thereby reduce the amplification factor of the lens error signal, required for generating the tracking error signal of the DPP method. A beam reflected from a multilayered optical disk is divided into some beam diffraction areas. The divided beam diffraction areas and the light receiving areas are so arranged that the divided beams focus at different positions on the optical detector and that, when a beam is focused on a target recording layer of the disk, stray light from other than the target recording layer being reproduced does not enter into the servo signal light receiving area of the optical detector.

摘要翻译： 在由光盘反射的光束中，仅使用不包括推挽区域的外围光束来产生DPD信号，以便优化光学检测器的光接收区域之间的内部线路连接，从而降低透镜的放大系数 产生DPP方法的跟踪误差信号所需的误差信号。 从多层光盘反射的光束被分成一些光束衍射区域。 分割光束衍射区域和光接收区域被布置成使得分光束聚焦在光学检测器上的不同位置处，并且当光束聚焦在盘的目标记录层上时，来自除目标记录之外的杂散光 被再现的层不进入光学检测器的伺服信号光接收区域。

公开(公告)号：US20080117729A1

公开(公告)日：2008-05-22

申请号：US11858159

申请日：2007-09-20

申请人： Toshio Satoh ,  Nobuo Nakai

发明人： Toshio Satoh ,  Nobuo Nakai

IPC分类号： G11B7/00

CPC分类号： G11B7/1263

摘要： A driving voltage of a laser diode provided in an optical disc apparatus is properly set based on an operating environment thereof to reduce unnecessary power consumption and heat generation. A temperature detector detects the temperature inside a pickup. A memory stores a value of the voltage to be supplied to a laser driver, the voltage corresponding to each of various operating environments. A controller refers to voltage values stored in the memory to set the voltage to be supplied to the laser driver based on a current operating environment. Operating environment parameters includes at least one of the temperature, operation mode, recording rate, and accumulated light emission time. The voltage value to be stored in the memory is a value of the voltage at which electric power consumed by the laser driver becomes smallest in the operating environment.

摘要翻译： 基于其操作环境适当地设置设置在光盘装置中的激光二极管的驱动电压，以减少不必要的功率消耗和发热。 温度检测器检测拾音器内部的温度。 存储器存储要提供给激光驱动器的电压的值，对应于各种操作环境中的每一个的电压。 控制器是指存储在存储器中的电压值，以基于当前的操作环境来设置要提供给激光驱动器的电压。 操作环境参数包括温度，操作模式，记录速率和累积发光时间中的至少一个。 要存储在存储器中的电压值是在操作环境中由激光驱动器消耗的电力变得最小的电压的值。

公开(公告)号：US20080267045A1

公开(公告)日：2008-10-30

申请号：US12078450

申请日：2008-03-31

申请人： Junji Nakajima ,  Kazuhiro Ikeda ,  Nobuo Nakai

发明人： Junji Nakajima ,  Kazuhiro Ikeda ,  Nobuo Nakai

IPC分类号： G11B7/00

CPC分类号： G11B7/1263

摘要： A laser driving method and an optical disc recording/reproducing apparatus are provided which are arranged to stably write data on an optical disc. The laser driving method is applied to a laser driving circuit arranged to have a laser diode for emitting a laser beam onto an optical disc, a transistor connected in series with the laser diode and a variable power supply for applying a DC voltage to the laser diode. The laser driving method includes the steps of causing the laser diode to emit a laser beam on trial before starting recording of data on the optical disc, detecting an operating voltage applied onto a contact between the laser diode and the transistor, and adjusting a DC voltage of the variable power supply based on the operating voltage.

摘要翻译： 提供了激光驱动方法和光盘记录/再现装置，其被布置成在光盘上稳定地写入数据。 激光驱动方法应用于激光驱动电路，该激光驱动电路被配置为具有用于将激光束发射到光盘上的激光二极管，与激光二极管串联连接的晶体管和用于向激光二极管施加直流电压的可变电源 。 激光驱动方法包括以下步骤：在开始在光盘上记录数据之前，激光二极管在试验中发射激光束，检测施加到激光二极管和晶体管之间的接触点上的工作电压，并调整直流电压 的可变电源基于工作电压。

公开(公告)号：US20080101169A1

公开(公告)日：2008-05-01

申请号：US11747248

申请日：2007-05-11

申请人： KOICHI SUZUKI ,  Nobuo Nakai

发明人： KOICHI SUZUKI ,  Nobuo Nakai

IPC分类号： G11B7/00

CPC分类号： G11B7/0917 ,  G11B7/0941 ,  G11B7/0945 ,  G11B7/1275 ,  G11B2007/0006 ,  G11B2007/092

摘要： The present invention provides an optical disc device and a method for focus control which enable an efficient operation for focusing without giving damages to an optical disc. A focus control section detects a focus position (drive voltage V1) by shifting an objective lens in the state where the optical disc is stopped (first step). Then, an amplitude (V2) of vertical deviation of the optical disc is detected from a reflected optical signal from the optical disc obtained by giving minute wobbling to the objective lens in the state where the optical disc rotates (second step). Based on the detected amplitude of vertical deviation of the optical disc, limit values (V3) are set for preventing collision between the objective lens and the optical disc. Then focusing is performed within a range defined by the limit values (third step).

摘要翻译： 本发明提供了一种用于聚焦控制的光盘装置和方法，其能够进行聚焦的有效操作而不给光盘造成损害。 聚焦控制部通过在光盘停止的状态下移动物镜来检测对焦位置（驱动电压V 1）（第一步骤）。 然后，在光盘旋转的状态下，通过在物镜上给予微小的摆动而获得的光盘的反射光信号，检测光盘的垂直偏移的振幅（V 2）（第二步骤）。 基于检测到的光盘的垂直偏差的振幅，设定限制值（V 3）以防止物镜与光盘之间的碰撞。 然后在由极限值（第三步）限定的范围内执行聚焦。

公开(公告)号：US4540856A

公开(公告)日：1985-09-10

申请号：US499241

申请日：1983-05-31

申请人： Teruo Fujii ,  Hiroshi Fukushima ,  Nobuo Nakai

发明人： Teruo Fujii ,  Hiroshi Fukushima ,  Nobuo Nakai

IPC分类号： H04M1/65 ,  H04M1/652 ,  H04Q9/00 ,  H04M1/64

CPC分类号： H04M1/652

摘要： A remote control system which is suitable for selective execution of any one of a plurality of functions of an automatic answering telephone apparatus by means of remote control over a telephone line. In the system, questioning speeches corresponding to the individual functions respectively are sequentially transmitted to the user of the apparatus, and the answer of the user to a specific question is detected to execute the specific function.

摘要翻译： 一种遥控系统，其适用于通过对电话线的遥控来选择性地执行自动应答电话设备的多个功能中的任何一个。 在系统中，分别对应于各个功能的询问演讲顺序地发送给设备的用户，并且检测用户对特定问题的答案以执行特定功能。

公开(公告)号：US20110182165A1

公开(公告)日：2011-07-28

申请号：US12956135

申请日：2010-11-30

申请人： Toshiteru NAKAMURA ,  Nobuo Nakai ,  Shigeharu Kimura

发明人： Toshiteru NAKAMURA ,  Nobuo Nakai ,  Shigeharu Kimura

IPC分类号： G11B7/00

CPC分类号： G11B7/1365 ,  G11B7/0906 ,  G11B7/0912 ,  G11B7/0916 ,  G11B7/0943 ,  G11B7/1353 ,  G11B7/13925

摘要： According to the present invention, of all beams of light reflected from the optical disc, only light in a peripheral region excluding a push-pull region is used to generate a DPD signal. In this method of signal generation that optimizes internal light-receiving surface interconnections in a photodetector, the lens error signal required for the generation of a tracking error signal in the DPP scheme is amplified at a lower amplification factor. In addition, the light reflected from the multilayered optical disc will be divided into a plurality of regions and the divided beam of light will be focused at different positions on the photodetector. When the beam is focused upon a desired layer, stray light from recording layers other than those to be subjected to information reproduction will not enter the photodetector light-receiving surfaces used for servo signals.

摘要翻译： 根据本发明，从光盘反射的所有光束中，仅使用除了推挽区域以外的周边区域的光来产生DPD信号。 在这种优化光电检测器内的光接收表面互连的信号产生方法中，DPP方案中产生跟踪误差信号所需的透镜误差信号以较低的放大因子被放大。 此外，从多层光盘反射的光将被划分为多个区域，并且分割的光束将聚焦在光电检测器上的不同位置。 当光束聚焦在期望的层上时，来自记录层的杂散光不再进行信息再现，不会进入用于伺服信号的光电检测器光接收表面。

公开(公告)号：US20100194910A1

公开(公告)日：2010-08-05

申请号：US12699553

申请日：2010-02-03

申请人： Yoshihiro Matsuo ,  Shigeyuki Okada ,  Nobuo Nakai

发明人： Yoshihiro Matsuo ,  Shigeyuki Okada ,  Nobuo Nakai

IPC分类号： H04N5/228 ,  H04N7/32

CPC分类号： H04N5/23229 ,  H04N19/124 ,  H04N19/137 ,  H04N19/152 ,  H04N19/159 ,  H04N19/51

摘要： A motion vector detector detect a motion vector of each macroblock in an I frame. A control unit controls a quantization unit in such manner that the quantization scale in a quantization table referenced in the quantization processing is adaptively varied for a first macroblock whose motion vector detected is smaller than a prescribed threshold value.

摘要翻译： 运动矢量检测器检测I帧中每个宏块的运动矢量。 控制单元控制量化单元，使得量化处理中所参考的量化表中的量化尺度对于其运动矢量检测小于规定阈值的第一宏块自适应地变化。

公开(公告)号：US08668037B2

公开(公告)日：2014-03-11

申请号：US13289394

申请日：2011-11-04

申请人： Yasuo Shinde ,  Nobuo Nakai ,  Masahiko Takenaka

发明人： Yasuo Shinde ,  Nobuo Nakai ,  Masahiko Takenaka

IPC分类号： B60R16/04

CPC分类号： B62K5/025 ,  B60K1/04 ,  B60L1/003 ,  B60L11/1805 ,  B60L11/1818 ,  B60L11/1864 ,  B60L11/1868 ,  B60L11/1874 ,  B60L11/1877 ,  B60L11/1879 ,  B60L2200/12 ,  B60L2210/10 ,  B60L2220/46 ,  B60L2240/34 ,  B60L2270/32 ,  B60L2270/34 ,  B60Y2200/12 ,  B60Y2200/126 ,  B62K11/10 ,  B62K2208/00 ,  Y02T10/7005 ,  Y02T10/7061 ,  Y02T10/7066 ,  Y02T10/7072 ,  Y02T10/7216 ,  Y02T90/127 ,  Y02T90/14

摘要： In an electrically-operated vehicle including rear wheels on right and left sides of a rear portion of a vehicle body, the electrically-operated vehicle includes a motor that drives the rear wheels, a battery 51 that is arranged above the motor, and a lower battery that is placed between the right and left rear wheels. The lower battery and the motor are arranged in a distributed manner over an axle of the rear wheels between a vehicle front side of the axle of the rear wheels and a vehicle rear side of the axle of the rear wheels. An upper end portion of a rear cushion is supported on a vehicle body frame, and the battery and the motor are supported on a lower end of the rear cushion.

摘要翻译： 在包括车身后部的左右两侧的后轮的电动车辆中，电动车辆包括驱动后轮的电动机，配置在电动机上方的电池51和下部 放置在右后轮和左后轮之间的电池。 下部电池和电动机以分布的方式布置在后轮的车辆前侧和后轮的车辆的车辆后侧之间的后轮的轴上。 后缓冲垫的上端部被支撑在车体框架上，电池和电动机被支撑在后缓冲垫的下端。

公开(公告)号：US08270281B2

公开(公告)日：2012-09-18

申请号：US12956135

申请日：2010-11-30

申请人： Toshiteru Nakamura ,  Nobuo Nakai ,  Shigeharu Kimura

发明人： Toshiteru Nakamura ,  Nobuo Nakai ,  Shigeharu Kimura

IPC分类号： G11B7/00 ,  G11B27/36 ,  G11B20/18 ,  G11B7/135

CPC分类号： G11B7/1365 ,  G11B7/0906 ,  G11B7/0912 ,  G11B7/0916 ,  G11B7/0943 ,  G11B7/1353 ,  G11B7/13925

摘要： According to the present invention, of all beams of light reflected from the optical disc, only light in a peripheral region excluding a push-pull region is used to generate a DPD signal. In this method of signal generation that optimizes internal light-receiving surface interconnections in a photodetector, the lens error signal required for the generation of a tracking error signal in the DPP scheme is amplified at a lower amplification factor. In addition, the light reflected from the multilayered optical disc will be divided into a plurality of regions and the divided beam of light will be focused at different positions on the photodetector. When the beam is focused upon a desired layer, stray light from recording layers other than those to be subjected to information reproduction will not enter the photodetector light-receiving surfaces used for servo signals.

摘要翻译： 根据本发明，从光盘反射的所有光束中，仅使用除了推挽区域以外的周边区域的光来产生DPD信号。 在这种优化光电检测器内的光接收表面互连的信号产生方法中，DPP方案中产生跟踪误差信号所需的透镜误差信号以较低的放大系数被放大。 此外，从多层光盘反射的光将被划分为多个区域，并且分割的光束将聚焦在光电检测器上的不同位置。 当光束聚焦在期望的层上时，来自记录层的杂散光不会进行信息再现，不会进入用于伺服信号的光电检测器光接收表面。