利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

106 条记录 (耗时 0.038 秒)

    Information processing device, access device, recording medium, information processing method, and information processing program
    2.
    发明授权
    Information processing device, access device, recording medium, information processing method, and information processing program 有权
    信息处理装置，存取装置，记录介质，信息处理方法和信息处理程序

    公开(公告)号：US07848198B2

    公开(公告)日：2010-12-07

    申请号：US11666884

    申请日：2005-10-14

    申请人： Harumitsu Miyashita ,  Junichi Minamino ,  Takeshi Nakajima

    发明人： Harumitsu Miyashita ,  Junichi Minamino ,  Takeshi Nakajima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/00736 ,  G11B7/004 ,  G11B7/005 ,  G11B7/0053 ,  G11B19/12

    摘要： An information processing device for processing specific information recorded to a recording medium that has a characteristic identification unit and a processing unit. The characteristic identification unit identifies the reflection characteristic of the recording medium. The processing unit processes the specific information recorded to the recording medium according to the identified reflection characteristic. The reflection characteristic is either a first characteristic such that the reflectance of light reflected by a recorded region of the recording medium (referred to as first reflectance) is greater than the reflectance of light reflected by an unrecorded region of the recording medium (referred to as second reflectance), or a second characteristic such that the first reflectance is less than the second reflectance.

    摘要翻译： 一种用于处理记录在具有特征识别单元和处理单元的记录介质上的特定信息的信息处理设备。 特征识别单元识别记录介质的反射特性。 处理单元根据所识别的反射特性来处理记录在记录介质上的特定信息。 反射特性是由记录介质的记录区域反射的光的反射率（被称为第一反射率）大于由记录介质的未记录区域反射的光的反射率的第一特性（称为第一反射率 第二反射率）或第二特性使得第一反射率小于第二反射率。

    Optical disk drive
    6.
    发明授权
    Optical disk drive 有权
    光盘驱动器

    公开(公告)号：US07660209B2

    公开(公告)日：2010-02-09

    申请号：US11271054

    申请日：2005-11-11

    申请人： Katsuya Watanabe ,  Junichi Minamino ,  Hiroshige Ishibashi ,  Takeshi Shimamoto

    发明人： Katsuya Watanabe ,  Junichi Minamino ,  Hiroshige Ishibashi ,  Takeshi Shimamoto

    IPC分类号： G11B7/00

    CPC分类号： G11B7/08517 ,  G11B7/00718

    摘要： An optical disk drive is designed to read and/or write data from/on a spiral string of tracks where land and groove tracks are alternated. The drive includes: a light source for radiating a light beam; a lens for converging the light beam; a mechanism for moving the lens; a photodetector for generating an electrical signal based on at least a part of the light beam reflected from the optical disk; and a control section for controlling the light source and the mechanism responsive to the electrical signal. While performing a seek operation by having the lens moved by the mechanism such that a target track, from/on which the data should start being read or written, is irradiated with the light beam, the control section tries to get a PLL locked by irradiating another track, which precedes the target track by at least one, with the light beam.

    摘要翻译： 光盘驱动器被设计用于读取和/或写入数据，其中脊线和凹槽轨迹交替的螺旋弦轨迹上。 驱动器包括：用于照射光束的光源; 用于会聚光束的透镜; 用于移动透镜的机构; 光电检测器，用于基于从光盘反射的光束的至少一部分产生电信号; 以及控制部分，用于根据电信号控制光源和机构。 当通过机构移动透镜使得从数据开始被读取或写入的目标轨迹被光束照射来执行寻道操作时，控制部分试图通过照射来锁定PLL 另一个轨道，其目标轨道至少有一个与光束。

    DROP-OUT DETECTING CIRCUIT AND OPTICAL DISC DEVICE
    7.
    发明申请
    DROP-OUT DETECTING CIRCUIT AND OPTICAL DISC DEVICE 审中-公开
    断开检测电路和光盘设备

    公开(公告)号：US20100027396A1

    公开(公告)日：2010-02-04

    申请号：US12096945

    申请日：2007-01-12

    申请人： Junichi Minamino

    发明人： Junichi Minamino

    IPC分类号： G11B20/18

    CPC分类号： G11B7/00375 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0948 ,  G11B19/041 ,  G11B20/10009 ,  G11B20/10037 ,  G11B2007/0013 ,  G11B2220/2541 ,  G11B2220/2579

    摘要： An optical disc apparatus according to the present invention includes: an optical head 102 that irradiates a given optical disc 101 with a light beam and generates electrical signals based on light reflected from the optical disc; a dropout detecting section 108 for detecting a dropout that has occurred in the reflected light intensity by comparing the level of one of the electrical signals that represents the reflected light intensity to a slice level; and a management information reading section 115 for determining whether each information storage layer of the given optical disc is an L to H type, in which the recording marks have a higher reflectance than an unrecorded area, or an H to L type, in which the recording marks have a lower reflectance than the unrecorded area. And the slice level is defined based on the result of the decision.

    摘要翻译： 根据本发明的光盘装置包括：光头102，其利用光束照射给定的光盘101，并且基于从光盘反射的光产生电信号; 用于通过将表示反射光强度的一个电信号的电平与切片电平进行比较来检测反射光强度中出现的压差的压差检测部分108; 以及管理信息读取部分115，用于确定给定光盘的每个信息存储层是否是L至H型，其中记录标记具有比未记录区域或H至L型更高的反射率，其中 记录标记具有比未记录区域更低的反射率。 并且根据决策的结果定义切片级别。

    Wobble demodulator and wobble demodulation method
    10.
    发明授权
    Wobble demodulator and wobble demodulation method 有权
    摆动解调器和摆动解调方式

    公开(公告)号：US07433277B2

    公开(公告)日：2008-10-07

    申请号：US11487241

    申请日：2006-07-14

    申请人： Kohei Nakata ,  Toyoji Gushima ,  Makoto Usui ,  Kazuya Ohshima ,  Junichi Minamino

    发明人： Kohei Nakata ,  Toyoji Gushima ,  Makoto Usui ,  Kazuya Ohshima ,  Junichi Minamino

    IPC分类号： G11B7/00 ,  G11B15/52 ,  G11B20/00

    CPC分类号： G11B7/0053 ,  G11B20/1403 ,  G11B27/19 ,  G11B27/24 ,  G11B2220/20

    摘要： A wobble demodulator for reproducing digital information from an optical recording medium in which a track is formed in accordance with a wobble signal that is MSK-modulated so as to contain the digital information by a carrier signal with a predetermined frequency and a sine wave signal with a frequency different from that of the carrier signal, includes: a wobble signal detector for detecting a wobble signal of the track from the optical recording medium; a wobble PLL for detecting the carrier signal based on the wobble signal detected by the wobble signal detector; a multiplier for multiplying the carrier signal detected by the wobble PLL by the wobble signal detected by the wobble signal detector and outputting a multiplied output; a MSK detector for detecting a MSK modulation mark having a phase or a frequency different from that of the carrier signal, based on an integrated value obtained by integrating the multiplied output from the multiplier on a predetermined section basis; and a MSK synchronization detector for detecting a synchronization position with respect to the digital information, based on the MSK modulation mark detected by the MSK detector, wherein the MSK detector compares a continuous predetermined number of the integrated values with a first threshold value for detecting a central portion of the MSK modulation mark, a second threshold value for detecting leading and trailing edges of the MSK modulation mark, and a third threshold value for detecting non-modulated portions before and after the MSK modulation mark, and detects the MSK modulation mark based on a pattern of a comparison result.

    摘要翻译： 一种用于从光学记录介质再现数字信息的摆动解调器，其中，根据通过MSK调制的摆动信号形成轨道，以便通过具有预定频率的载波信号和正弦波信号来包含数字信息， 与载波信号不同的频率包括：摆动信号检测器，用于从光记录介质检测轨道的摆动信号; 摆动PLL，用于基于由摆动信号检测器检测的摆动信号检测载波信号; 乘法器，用于将由摆动PLL检测的载波信号乘以由摆动信号检测器检测的摆动信号并输出​​乘法输出; 基于通过对乘法器的乘法输出进行积分而获得的积分值，基于规定的区间来检测具有与载波信号的相位或频率不同的MSK调制标记的MSK检测器; 以及MSK同步检测器，用于基于由MSK检测器检测到的MSK调制标记来检测相对于数字信息的同步位置，其中，MSK检测器将连续的预定数量的积分值与用于检测 MSK调制标记的中心部分，用于检测MSK调制标记的前沿和后沿的第二阈值，以及用于检测MSK调制标记之前和之后的未调制部分的第三阈值，并且基于MSK调制标记检测MSK调制标记 在一个比较结果的模式。