CN1241280A - Cd－rom驱动器 - Google Patents

Cd－rom驱动器 Download PDF

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Publication number
CN1241280A
CN1241280A CN97180880A CN97180880A CN1241280A CN 1241280 A CN1241280 A CN 1241280A CN 97180880 A CN97180880 A CN 97180880A CN 97180880 A CN97180880 A CN 97180880A CN 1241280 A CN1241280 A CN 1241280A
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Prior art keywords
rotating speed
rom drive
driver
button
control device
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CN97180880A
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CN1143298C (zh
Inventor
A·法伊勒
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Fujitsu Technology Solutions GmbH
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Wincor Nixdorf International GmbH
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Control Of Stepping Motors (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Feeding And Guiding Record Carriers (AREA)

Abstract

CD－ROM驱动器,具有多个n倍级的可选择的转速范围并且在每一个转速范围之内以如下的措施实现在外和内扇区之间的线性降低的转速,即在负面的读出结果的情况下实现转速的自动的降低,含有控制装置,其在超过一个预定的噪声水平和/或在出现振动时起作用以转换到一个低的振动范围。

Description

CD-ROM驱动器
本发明涉及按照权利要求1前序部分所述的CD-ROM驱动器。
CD-ROM驱动器相应于具有较高转速的较高的读效率的要求进行工作。从简单的2倍速到目前的8倍速，相应的驱动器具有从500到6.500U/分的转速，以致于该驱动器能够按照不同的速度范围的要求进行调节。在硬盘存储器驱动器中，基于固定构成的硬盘一个特别精确的调节和对中是可能的，但在CD-ROM驱动器上的问题是，在此只在一个驱动器中所使用的数据盘的一个相对比较小的部分的情况下能够达到足够精确的对中。这尤其是在上述的转速中实现了在所使用的数据盘的较大的部分上基于没有优化的位址变化和/或所出现的工作噪声，其在相应构成的个人计算机上明显地被减弱或者避免。除了通过该驱动器的较高的噪声外，该驱动器能够嵌入整个外壳上，这也导致了不必要的较高的驱动器的机械负载，这引起了维护、修理和其他的费用。在CD-ROM上所出现的振动大部分能够传输到附近的硬盘或者光驱，以致于它们的工作被灵敏地干扰。最后这导致了在用户处的不便，所以该CD-ROM驱动器总的来说是不能再被接受的。
已知的是在一个CD中，一个轨道具有从内到外延伸的螺旋，其中所有的扇区与硬盘不同而具有相同的长度。这表示该驱动器的转速从第一个扇区到最后一个扇区在一个预定高的转速范围内能够线性地从例如6.500U/分下降到3.000U/分。如果现在出现了这种情况，即一个扇区不能够无错误地读出，那么该驱动器自动地切换到最近的低转速范围。一个相似的工作方式不是在出现振动和/或者发出噪声时，而该数据尽管该振动仍然能够无错误地读出。
上述发明的任务在于以此方式改进CD-ROM驱动器，一个通过振动和/或发出噪声而受影响的工作过程以简单的装置被避免，并且该CD-ROM驱动器再一次返回到无干扰的工作状态。
此任务按照本发明通过权利要求1的特征解决。这能够以最简单的方式通过一个手动的触摸控制进行。这也能够在相应高的费用情况下通过声学和/或振动传感器自动地实现。本发明有利的改进在从属权利要求中给出。
下面借助于附图详细解释本发明的实施例。
图1CD-ROM驱动器的原理电路图，
图2用于本发明的CD-ROM驱动器的工作方式的流程图。
图1示出了CD-ROM驱动器的原理结构。其含有一个借助于电机1驱动的转轴2，该轴对中地设置在CD盘3上。由扫描光线4所接收的信号传输到一个数据处理器5以进行另外的处理。一个另外的处理器6一方面监视开关S的实际位址并且另一方面提供用于电机控制器7和位移电子控制器8的控制信号，其将CD盘3传送到工作位址，也就是说控制到达转轴2并且从那再一次返回到取样位址。分别在接通开关S之后，该处理器6或者提供一个到电机控制器7的信号以减小转速，或者提供一个到位移电子控制器8的信号以将CD盘从工作位址传送到一个输出位址。
借助于在图2中表示的流程图，CD-ROM驱动器的工作方式不再较小解释。在线路“控制”是监视开关S的功能，也就是说，在预先给出的询问周期中的切换状态-开/关。如果现在开关S动作，那么该开关状态的改变被变动地，例如约100ns到缓冲和启动状态地受到监视和检测。如果在上述的例如＜0.5秒的时间间隔内该开关不再启动，则转换到线路“SP”。在另一种情况下，也就是说该开关被长时间地保持启动时检测，是否此启动状态维持至少2秒。如果出现了这种情况，则切换到线路“E”，这意味着该CD盘被撤出，也就是说具有CD盘的位移电子装置被拉出。在应用了一个新的数据盘的情况下，该线路“E”返回到线路“控制”。
在转换到线路“SP”时首先检测是否必需重视速度的给定。如果这是不必要的，能够立即切换到最接近的低的旋转速度。这个过程能够通过控制线路立即实现，直到该驱动器以简单的速度(约500U/分)旋转。如果该旋转速度的预定是必需的，则该旋转速度与该要求(例如MPEG-4-倍或者声频-1-倍)进行匹配和调整。
总而言之具有如下的工作方式。如果该开关S被短时间地压合，例如最大0.5秒，那么该处理器6通过电机控制器7实现了到低转速的转换。此过程能够一直被重复，直到预先所出现的振动和/或较大的噪声被完全地减弱或者能够至少减少到非常低的程度。如果该开关被长时间地压合，那么该处理器6通过位移电子控制器8触发了CD盘的输出，在此该该位移电子设备连同该CD盘都可以拉出。
借助于其信号通过传感器6传输到电机控制器7的声学和/或振动传感器，在存在干扰振动和/或发出噪声时所希望的转速下降也能够自动地实现。

Claims (5)

1.CD-ROM驱动器，具有多个n倍级的可选择的转速范围并且在每一个转速范围之内以如下的措施实现在外和内扇区之间的线性降低的转速，即在负面的读出结果的情况下实现转速的自动的降低，
其特征在于，含有控制装置，其在超过一个预定的噪声水平和/或在出现振动时起作用以转换到一个低的振动范围。
2.如权利要求1的CD-ROM驱动器，
其特征在于，在驱动器的外壳上含有声学和/或振动传感器，相应于其输出信号的控制装置以此方式受到影响，在超过一个预定的阈值时一个控制信号被发出到驱动器的电机控制器上以降低转速。
3.如权利要求1的CD-ROM驱动器，
其特征在于，用于降低转速的控制装置设置有一个手动操作的按键。
4.如权利要求3的CD-ROM驱动器，
其特征在于，按键控制的转速降低借助于用于CD位移电子传送的操作按键实现。
5.如权利要求4的CD-ROM驱动器，
其特征在于，用于位移电子传送的操作按键能够如此地控制，在按键的短时间的启动时实现转速的降低并且在长时间地按压按键时触发了CD位移电子设备的传送运动。
CNB971808805A 1996-12-19 1997-12-05 Cd-rom驱动器 Expired - Fee Related CN1143298C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19653109.8 1996-12-19
DE19653109 1996-12-19

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CN1241280A true CN1241280A (zh) 2000-01-12
CN1143298C CN1143298C (zh) 2004-03-24

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CNB971808805A Expired - Fee Related CN1143298C (zh) 1996-12-19 1997-12-05 Cd-rom驱动器

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US (2) US6493300B2 (zh)
EP (1) EP0946940B1 (zh)
JP (2) JP2000507026A (zh)
CN (1) CN1143298C (zh)
AT (1) ATE194435T1 (zh)
DE (1) DE59701983D1 (zh)
ES (1) ES2150292T3 (zh)
HK (1) HK1021240A1 (zh)
TW (1) TW410325B (zh)
WO (1) WO1998027549A2 (zh)

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JP2001035068A (ja) 1999-07-08 2001-02-09 Samsung Electronics Co Ltd 振動誘発ディスク再生装置及び方法
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Publication number Publication date
US20010030923A1 (en) 2001-10-18
EP0946940A1 (de) 1999-10-06
WO1998027549A3 (de) 1998-08-06
JP2000507026A (ja) 2000-06-06
ATE194435T1 (de) 2000-07-15
US20030090976A1 (en) 2003-05-15
WO1998027549A2 (de) 1998-06-25
US6493300B2 (en) 2002-12-10
JP3084075U (ja) 2002-02-28
ES2150292T3 (es) 2000-11-16
HK1021240A1 (en) 2000-06-02
CN1143298C (zh) 2004-03-24
DE59701983D1 (de) 2000-08-10
EP0946940B1 (de) 2000-07-05
TW410325B (en) 2000-11-01

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