Laser drive integrated circuit and optical disk apparatus using the same
    31.
    发明授权
    Laser drive integrated circuit and optical disk apparatus using the same 有权
    激光驱动集成电路和使用其的光盘装置

    公开(公告)号:US06687208B2

    公开(公告)日:2004-02-03

    申请号:US10059188

    申请日:2002-01-31

    IPC分类号: G11B70045

    摘要: A laser drive integrated circuit and an optical disk apparatus using the laser drive integrated circuit for forming high-density marks. The optical disk apparatus includes a drive waveform information storage unit for storing at least one information of a drive waveform for driving a laser diode in response to a binary recording signal to be recorded in a recording medium, and a drive waveform decoder for decoding the drive waveform based on the information stored in the drive waveform information storage unit. A recording strategy can be changed in accordance with variations and fluctuations of recording media or characteristics of the recording media, while at the same time reducing a number of signal lines in flexible wiring and alleviating effects of signal distortion in the signal lines.

    摘要翻译: 激光驱动集成电路和使用激光驱动集成电路形成高密度标记的光盘装置。 光盘装置包括驱动波形信息存储单元,用于响应于要记录在记录介质中的二进制记录信号,存储用于驱动激光二极管的驱动波形的至少一个信息;驱动波形解码器,用于对驱动器进行解码 基于存储在驱动波形信息存储单元中的信息的波形。 可以根据记录介质的变化和波动或记录介质的特性来改变记录策略,同时减少柔性布线中的多个信号线并减轻信号线中信号失真的影响。

    Laser drive integrated circuit and optical disk apparatus using the same
    32.
    发明授权
    Laser drive integrated circuit and optical disk apparatus using the same 有权
    激光驱动集成电路和使用其的光盘装置

    公开(公告)号:US06483791B1

    公开(公告)日:2002-11-19

    申请号:US09239516

    申请日:1999-01-29

    IPC分类号: G11B70045

    摘要: A laser drive integrated circuit and an optical disk apparatus using the laser drive integrated circuit for forming high-density marks. The optical disk apparatus has a drive waveform information storage unit for storing at least one information of the drive waveform for driving a laser diode in response to a binary recording signal recorded in a recording medium and a drive waveform decoder for decoding the drive waveform based on the information stored in the drive waveform information storage unit. The recording strategy can be changed in accordance with the variations and fluctuations of recording media or the characteristics of the recording media, while at the same time reducing the number of signal lines of flexible wiring and alleviating the effect of the signal distortion.

    摘要翻译: 激光驱动集成电路和使用激光驱动集成电路形成高密度标记的光盘装置。 光盘装置具有驱动波形信息存储单元,用于响应于记录在记录介质中的二进制记录信号存储用于驱动激光二极管的驱动波形的至少一个信息,以及驱动波形解码器,用于基于 存储在驱动波形信息存储单元中的信息。 可以根据记录介质的变化和波动或记录介质的特性改变记录策略,同时减少柔性布线的信号线数量并减轻信号失真的影响。

    Information recording/reproducing apparatus
    33.
    发明授权
    Information recording/reproducing apparatus 失效
    信息记录/重放装置

    公开(公告)号:US06301211B1

    公开(公告)日:2001-10-09

    申请号:US09291280

    申请日:1999-04-14

    IPC分类号: G11B700

    摘要: An information recording/reproducing apparatus for recording/reproducing information into and from an optical information recording medium, wherein the information of a plurality of sectors is recorded as one recording unit. A recoding area of the recording medium is constructed with a plurality of zones and each zone is different in a sector number per one round of track. A number of the recording units for conducting a verify control for each of the zones is changed on the basis of a number of sectors per one round of track and a number of sectors for turning back by the one round of track.

    摘要翻译: 一种用于将光信息记录介质中的信息记录/再现的信息记录/再现装置,其中将多个扇区的信息记录为一个记录单元。 记录介质的记录区域由多个区域构成,并且每个区域每个轨道的扇区数不同。 用于对每个区域进行验证控制的多个记录单元基于每一轮轨道的扇区数和通过一轮轨道返回的扇区数量而改变。

    Method and apparatus for tracking servo system
    38.
    发明授权
    Method and apparatus for tracking servo system 失效
    跟踪伺服系统的方法和装置

    公开(公告)号:US4751695A

    公开(公告)日:1988-06-14

    申请号:US870944

    申请日:1986-06-05

    IPC分类号: G11B7/09 G11B7/095

    CPC分类号: G11B7/0901

    摘要: A tracking servo system using an optical disc with guide grooves formed thereon for a plurality of tracks each having a plurality of interrupting portions, wherein a tracking signal is detected from the diffracted light of a beam spot irradiated to the optical disc and reflected from the guide groove, then the tracking signal is corrected by a signal component included therein and obtained from the interrupting portions, and the track is traced by the use of such corrected signal and the tracking signal.

    摘要翻译: 一种跟踪伺服系统,其使用具有形成在其上的导槽的多个轨道的光盘,​​每个轨道具有多个中断部分,其中,从照射到光盘并从该引导件反射的束斑的衍射光中检测跟踪信号 然后通过其中包含的信号分量并且从中断部分获得跟踪信号来校正跟踪信号,并且通过使用这种校正信号和跟踪信号来跟踪轨迹。

    Optical information processor for compensating offset
    39.
    发明授权
    Optical information processor for compensating offset 失效
    用于补偿偏移的光学信息处理器

    公开(公告)号:US4663751A

    公开(公告)日:1987-05-05

    申请号:US515520

    申请日:1983-07-20

    摘要: An optical information processor including a recording medium with a guide groove having interrupting portions therealong in the form of mirror areas for reflecting light impinging on the recording medium. A light detector is provided for receiving diffraction light from the guide groove with a first signal detector being provided for differentially operating on signals from the light detector and generating a tracking signal tracking the guide groove. Additionally, a second signal detector is provided for detecting the signal from the light detector indicative of the mirror areas and providing an output indicative thereof which is utilized for compensating the tracking signal. The compensated tracking signal is then utilized for controlling the positioning of the light beam on the recording medium.

    摘要翻译: 一种光学信息处理器,包括具有引导槽的记录介质,所述引导槽具有镜面区域形式的中断部分,用于反射入射到记录介质上的光。 提供了一种光检测器,用于接收来自引导槽的衍射光,第一信号检测器被提供用于对来自光检测器的信号进行差分操作,并产生跟踪引导槽的跟踪信号。 此外,提供第二信号检测器,用于检测来自光检测器的指示镜面积的信号,并提供用于补偿跟踪信号的指示的输出。 补偿的跟踪信号然后用于控制光束在记录介质上的定位。

    Multiple pulse recording method with 3-valued power levels
    40.
    发明授权
    Multiple pulse recording method with 3-valued power levels 失效
    具有3值功率电平的多脉冲记录方法

    公开(公告)号:US08144559B2

    公开(公告)日:2012-03-27

    申请号:US11761399

    申请日:2007-06-12

    IPC分类号: G11B5/09

    CPC分类号: G11B7/00456 G11B7/1267

    摘要: Pulses modulated between the erase power and the bottom power are used instead of cooling pulses for an optical disk medium that needs a write strategy with 4-valued power levels. Consequently, pulse instruction lines for the cooling pulses, power level instruction lines, and corresponding current source within the laser driver can be omitted. Decrease in size and lower power consumption can be accomplished.

    摘要翻译: 使用在擦除功率和底部功率之间调制的脉冲来代替需要具有4值功率电平的写入策略的光盘介质的冷却脉冲。 因此,可以省略用于冷却脉冲,功率电平指令线和激光驱动器内的对应电流源的脉冲指令线。 可以实现尺寸减小和功耗降低。