公开(公告)号：US08279732B2

公开(公告)日：2012-10-02

申请号：US12640353

申请日：2009-12-17

申请人： Koichi Watanabe ,  Manabu Shiozawa

发明人： Koichi Watanabe ,  Manabu Shiozawa

IPC分类号： G11B11/00

CPC分类号： G11B7/126

摘要： An HF waveform prevailing during a read operation varies due, for instance, to changes in the ambient temperature of an optical disc drive and variations in the characteristics of a laser. This degrades read performance and decreases the number of rewritable disc read operations. To address the above problems, an optical disc drive and an optical information read method are disclosed. The disclosed optical disc drive and optical information read method vary an HF amplitude in relation to the resistance, differential resistance, or temperature of the laser.

摘要翻译： 在读取操作期间存在的HF波形由于例如光盘驱动器的环境温度的变化和激光器的特性的变化而变化。 这会降低读取性能并减少可重写光盘读取操作的数量。 为了解决上述问题，公开了一种光盘驱动器和光信息读取方法。 所公开的光盘驱动器和光信息读取方法相对于激光器的电阻，差分电阻或温度改变HF振幅。

公开(公告)号：US08266642B2

公开(公告)日：2012-09-11

申请号：US12683334

申请日：2010-01-06

申请人： Amir H. Torkaman ,  Michael Szelong ,  Kyquang Son ,  Ravender Goyal ,  Paul R. Swan ,  Michael Umansky

发明人： Amir H. Torkaman ,  Michael Szelong ,  Kyquang Son ,  Ravender Goyal ,  Paul R. Swan ,  Michael Umansky

IPC分类号： G11B17/05

CPC分类号： G11B17/22

摘要： An optical disk mechanism has a housing with at least one disk entry/exit aperture. A disk guide, such as a plate, is aligned with and guides an optical disk through the disk entry/exit aperture. Two beams rotatably support at least one roller and a drive mechanism. Flexing and biasing the roller towards the disk, the two beams maintain a rotational axis of the roller parallel to the disk and accommodate varying separation between the roller and the disk guide. The two beams are closely spaced and non-coplanar, and may be part of a double-beam mount. The double-beam mount attaches the two beams to the housing and to a frame, which positions the roller near the disk guide and the disk entry/exit aperture. Sliding the disk along the plate or other disk guide, the roller is reversible to drive the disk in or out through the disk entry/exit aperture.

摘要翻译： 光盘机构具有至少一个盘进/出孔的外壳。 诸如板的盘引导件通过盘入口/出口孔对齐并引导光盘。 两个梁可旋转地支撑至少一个辊和驱动机构。 两个梁使滚子朝向盘弯曲并偏置，两个梁保持滚子的平行于盘的旋转轴线，并适应辊与盘引导件之间的不同分离。 两个梁是紧密间隔的并且非共面的，并且可以是双梁安装件的一部分。 双梁安装件将两个梁连接到壳体和框架，其将辊定位在盘引导件和盘进/出孔的附近。 沿着盘或其他盘引导件滑动盘，辊是可逆的，以通过盘入口/出口孔驱动盘进出。

公开(公告)号：US08243565B2

公开(公告)日：2012-08-14

申请号：US12987778

申请日：2011-01-10

申请人： Takeyoshi Kataoka ,  Motoyuki Suzuki

发明人： Takeyoshi Kataoka ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B20/10 ,  G11B7/08529 ,  G11B7/0946

摘要： An optical disk device for recording or reproducing an optical disk has: an objective lens for irradiating a laser beam to the optical disk; an actuator for moving the objective lens in the radial direction of the optical disk; and a spindle motor for rotating the optical disk. After the laser beam irradiated to the optical disk passed through a PID portion of the optical disk, the actuator moves the objective lens in the radial direction of the optical disk at a timing corresponding to a rotational speed. Between signals to drive the actuator, an output time of a deceleration signal is set to a predetermined ratio of a time during which an acceleration signal is outputted. While the deceleration signal is outputted, a light spot passes through the PID portion.

摘要翻译： 用于记录或再现光盘的光盘装置具有：用于将激光束照射到光盘的物镜; 用于沿着光盘的径向方向移动物镜的致动器; 以及用于旋转光盘的主轴电机。 在通过光盘的PID部分照射到光盘的激光束之后，致动器在对应于旋转速度的时刻沿着光盘的径向移动物镜。 在驱动致动器的信号之间，减速信号的输出时间被设定为输出加速度信号的时间的预定比率。 当减速信号输出时，光点通过PID部分。

公开(公告)号：US08228771B2

公开(公告)日：2012-07-24

申请号：US12056430

申请日：2008-03-27

申请人： Takuya Himi ,  Toshiki Ishii ,  Tsuyoshi Toda

发明人： Takuya Himi ,  Toshiki Ishii ,  Tsuyoshi Toda

IPC分类号： G11B11/00

CPC分类号： G11B20/182 ,  G11B7/00456 ,  G11B7/1267 ,  G11B27/36 ,  G11B2020/1275 ,  G11B2220/2537

摘要： In a recording/reproducing apparatus and a recording method, for enabling a high reliability on reproduction data are conducted the followings: recording a test mark within the test aria with a predetermined write strategy; obtaining signal amplitudes corresponding to a front portion, a middle portion, and a rear portion of the test mark, by reproducing the test mark; determining on whether the test mark has a desirable configuration or not, upon basis of at least one of ratios, defined between the amplitude of the front portion and the amplitude of the rear portion, and between the amplitude of the middle portion and the amplitude of the rear portion; correcting the write strategy if it is determined that the test mark has not the desirable configuration; and recording the information within the data area with the write strategy after the correction thereof.

摘要翻译： 在记录/再现装置和记录方法中，为了能够在再现数据上实现高可靠性，进行以下操作：以预定的写入策略在测试咏叹调中记录测试标记; 通过再现测试标记获得对应于测试标记的前部，中间部分和后部的信号幅度; 基于在前部的振幅和后部的振幅之间以及在中间部分的振幅和振幅之间限定的比例中的至少一个之后，确定测试标记是否具有期望的配置 后部; 如果确定测试标记没有期望的配置，则校正写入策略; 并在其修正之后用写入策略在数据区域内记录信息。

公开(公告)号：US08181190B2

公开(公告)日：2012-05-15

申请号：US12256496

申请日：2008-10-23

申请人： Koji Matsumoto ,  Yosuke Ishizuka

发明人： Koji Matsumoto ,  Yosuke Ishizuka

IPC分类号： G11B17/04

CPC分类号： G11B17/056 ,  G11B33/122

摘要： In an optical disc apparatus, convex portions are provided on the inner surface of a top cover that covers the top surface side of the apparatus such that the convex portions are directly opposite or directly above a flexible printed circuit board during the slide-in/slide-out movements of a tray. The convex portions are positioned further outwardly from the outer circumference of an optical disc with respect to the rotation center of the optical disc upon completion of the slide-in movement of the tray. The convex portions guide or slide part of the flexible printed circuit board along the tip end surfaces of the convex portions in the direction of the slide-in movement of the tray when the part of the flexible printed circuit board comes into contact with the inner surface of the top cover during the slide-in movement of the tray.

摘要翻译： 在光盘装置中，在覆盖装置的顶面侧的顶盖的内表面上设置凸部，使得在滑入/滑动期间凸部直接与柔性印刷电路板相对或正上方 - 托盘的运动。 在托盘的滑入运动完成时，凸部相对于光盘的旋转中心从光盘的外圆周进一步定位。 当柔性印刷电路板的一部分与内表面接触时，凸起部沿着托盘的滑入方向沿凸部的顶端表面引导或滑动柔性印刷电路板的一部分 在托盘滑入运动期间顶盖的位置。

公开(公告)号：US08179148B2

公开(公告)日：2012-05-15

申请号：US12769337

申请日：2010-04-28

申请人： Hirotoshi Fukuda ,  Junichi Iida ,  Masato Sano ,  Toshinori Arai

发明人： Hirotoshi Fukuda ,  Junichi Iida ,  Masato Sano ,  Toshinori Arai

IPC分类号： G01R23/20 ,  H04B15/00

CPC分类号： H04B1/10 ,  G06F13/4072

摘要： Proposed is a highly reliable information detecting apparatus and method. In an information detecting apparatus and method for detecting transmission information a transmission signal in which a burst period of transmitting a burst signal and a space period as a no-signal period are repeated in a pattern according to the subject matter of the transmission information, whether the absolute value of a signal amplitude level of the transmission signal is not less than a first threshold is detected, whether the absolute value of a signal amplitude level of the transmission signal is not less than a second threshold is detected, and whether the amplitude level displacement of the transmission signal is based on noise or the reception of the transmission information is determined based on the detection results.

摘要翻译： 提出了一种高可靠性的信息检测装置和方法。 在用于检测发送信息的信息检测装置和方法中，根据发送信息的主题，重复发送突发信号和空间周期的突发周期作为无信号周期的发送信号，无论是否 检测发送信号的信号幅度电平的绝对值不小于第一阈值，检测发送信号的信号幅度电平的绝对值是否不小于第二阈值，以及幅度电平 发送信号的位移基于噪声，或者基于检测结果确定发送信息的接收。

公开(公告)号：US08174954B2

公开(公告)日：2012-05-08

申请号：US12826775

申请日：2010-06-30

申请人： Koichi Watanabe

发明人： Koichi Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/126

摘要： An optical information recording and reproducing method for recording or reproducing information by irradiating pulsed laser diode light from a laser diode (LD) light source in which the resistance value of the LD light source is measured in an operating state, the measured LD light source resistance value is compared with a target resistance value, and the LD light source is heated when the LD light source resistance value is higher than the target resistance value, in order to maintain the LD light source resistance at a specified value or less.

摘要翻译： 一种光信息记录和再现方法，用于通过从其中在操作状态下测量LD光源的电阻值的激光二极管（LD）光源照射脉冲激光二极管光来记录或再现信息，测量的LD光源电阻 将值与目标电阻值进行比较，并且当LD光源电阻值高于目标电阻值时，为了将LD光源电阻保持在规定值以下，LD光源被加热。

公开(公告)号：US08136128B2

公开(公告)日：2012-03-13

申请号：US12508819

申请日：2009-07-24

申请人： Mitsutaka Shizuya ,  Shinya Tsubota ,  Hiroshi Yamagishi ,  Sojiro Kirihara

发明人： Mitsutaka Shizuya ,  Shinya Tsubota ,  Hiroshi Yamagishi ,  Sojiro Kirihara

IPC分类号： G11B17/04

CPC分类号： G11B17/056 ,  G11B33/08 ,  G11B33/148

摘要： An optical disc apparatus for enabling reduction of fluid noises accompanying with disc rotation, effectively, comprises a tray 5 provided to be able to comes in/out into/from said housing freely, a unit mechanism 5 provided together with the tray, in one body, a turntable 9a provided on the unit mechanism and configured to support a disc thereon, to be rotatable freely, a plural number of wall portions 5b to 5d formed on the tray surrounding the disc supported on the turntable from an outer periphery thereof, each of which has configuration like an arc around a rotation center of the turntable, a pickup 10 for doing straight-line motion within along a radius direction of a disc 4, and an opening 56, which is provided on the wall portion 5e locating at the position on the moving track of the pickup, for maintaining movement of the pickup, wherein the wall portion 5e is moved or stepped back to a side of an outer periphery of the turntable comparing to other wall portions.

摘要翻译： 一种用于能够有效地减少伴随盘旋转的流体噪声的光盘装置包括：托架5，其设置成能够自由地从所述壳体进入/离开;单元机构5，与托盘一起设置在一体中 设置在单元机构上并被配置为支撑其上可旋转的盘的转台9a，多个壁部分5b至5d，其形成在从其外周围支撑在转台上的盘周围的托盘上， 其具有围绕转台的旋转中心的弧形构造，用于沿着盘4的半径方向进行直线运动的拾取器10和设置在位于所述位置的位置的壁部5e上的开口56 在拾取器的移动轨道上，用于保持拾取器的运动，其中与其它壁部相比，壁部5e移动或倒退到转台的外周侧。

公开(公告)号：US08130613B2

公开(公告)日：2012-03-06

申请号：US12430963

申请日：2009-04-28

申请人： Atsushi Yamada ,  Tooru Kawashima ,  Mitsuhiro Nishidate

发明人： Atsushi Yamada ,  Tooru Kawashima ,  Mitsuhiro Nishidate

IPC分类号： G11B7/00

CPC分类号： G11B20/10 ,  G11B20/18 ,  G11B2020/10944 ,  G11B2020/1265 ,  G11B2220/2537

摘要： The present invention makes it possible to reproduce reproduction images without a break without having to use any additional identification information even when real-time recorded data is not completely continuous. A control circuit references a data identification flag (“Recording Type”) which is attached to each sector of reproduction data to indicate the type of recorded data, and counts the number of sectors to which the data identification flag representing real-time recorded data is attached. When the count is not smaller than a threshold value, the control circuit reproduces all the sectors of the target reproduction block in a real-time reproduction mode. In the real-time reproduction mode, the control circuit masks a portion of reproduction data that is found to be defective, changes the value of the defective data to 0 (zero), and transfers the resulting reproduction data to a host device.

摘要翻译： 即使在实时记录数据不是完全连续的情况下，本发明也可以不间断地再现再现图像，而不必使用任何附加的识别信息。 控制电路参考附加到每个再现数据扇区的数据识别标志（“记录类型”），以指示记录数据的类型，并且对表示实时记录数据的数据识别标志的扇区数进行计数 附上。 当计数不小于阈值时，控制电路在实时再现模式中再现目标再现块的所有扇区。 在实时再现模式中，控制电路遮蔽发现有缺陷的再现数据的一部分，将缺陷数据的值改变为0（零），并将所得到的再现数据传送到主机设备。

公开(公告)号：US08121004B2

公开(公告)日：2012-02-21

申请号：US12464136

申请日：2009-05-12

申请人： Tetsuya Fushimi ,  Atsushi Yamada ,  Jinya Ikeda

发明人： Tetsuya Fushimi ,  Atsushi Yamada ,  Jinya Ikeda

IPC分类号： G11B7/00

CPC分类号： G11B7/00557 ,  G11B7/00718 ,  G11B7/1267 ,  G11B20/10009 ,  G11B2220/2537

摘要： A method for adjusting recording power of an optical disk apparatus having an output circuit that outputs recording light onto a test writing area of an optical disk, and a control circuit that adjusts the recording power of the recording light outputted from the output circuit, the method including the steps of causing the control circuit to erase a recording mark recorded onto the test writing area, to record a recording mark onto the test writing area in constant recording power lower than threshold power for starting a recording operation, and to record a recording mark onto the test writing area while changing the recording power.

摘要翻译： 一种用于调整具有将记录光输出到光盘的测试写入区域的输出电路的光盘装置的记录功率的调节方法，以及调节从输出电路输出的记录光的记录功率的控制电路， 包括使控制电路擦除记录在测试写入区域上的记录标记的步骤，将记录标记记录在低于用于开始记录操作的阈值功率的恒定记录功率下的测试写入区域上，并记录记录标记 在测试写入区域更改记录功能时。