公开(公告)号：EP1058246B1

公开(公告)日：2006-05-10

申请号：EP00301451.1

申请日：2000-02-24

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo

IPC分类号： G11B7/125

CPC分类号： G11B7/126 ,  G11B7/1263

摘要： A method and apparatus for controlling the power of a laser diode (160), which can prevent fluctuation in the laser power of the laser diode (160) at a record/playback area of an optical disc (180). The apparatus for controlling the power of the laser diode includes a controller (300) for providing an automatic power control of the laser diode (APC controller), interposed between an up/down counter (208) and a laser diode driver (140), the APC controller (300) for latching the output of the up/down counter (208) in synchronism with a periodic synchronization signal, and outputting the latch result to the laser diode driver (140). Therefore, the power level of the laser diode (160) can be periodically controlled according to the sub-divided control modes, so that the laser power level remains resilient to external noise, compared to continuous control operation through the entire mode.

公开(公告)号：EP1329879A2

公开(公告)日：2003-07-23

申请号：EP02257896.7

申请日：2002-11-15

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo

IPC分类号： G11B7/00

CPC分类号： G11B7/0062

摘要： A write pulse generating apparatus and method which can generate a write pulse appropriate for the type and the recording speed factor of an optical recording medium are provided. The write pulse generating apparatus which generates a write pulse appropriate to an optical recording medium by controlling a light emitting device via a light emitting device driving unit so that a desired write pulse is generated, the write pulse generating apparatus including a control unit which provides information on the type of the optical recording medium and information on the recording speed factor; and a control signal generating unit which determines the type of a multi pulse which is to be generated in a multi pulse interval based on the information on the type and recording speed factor of the optical recording medium which is provided by the control unit, and generates a signal for controlling the light emitting device driving unit so that a write pulse having the determined multi pulse type is generated from the light emitting device. Also, the write pulse generating apparatus includes a control unit which sets the level of the write pulse for the entire interval or for a partial interval of a write mark and/or a write space of the optical recording medium according to the type of the optical recording medium and a recording speed factor; and a control signal generating unit which is controlled by the control unit and generates a control signal for changing the level of the write pulse for each interval of a write mark and/or a write space, and sends the control signal to the light emitting device driving unit. According to the apparatus and method, in an optical drive, compatibility with optical recording media of a variety of types and a variety of recording speeds is improved so that quality recording can be provided for any optical recording medium and any recording speed factor.

摘要翻译： 本发明提供一种写脉冲生成装置和方法，其可以产生写脉冲适合的类型和光记录介质的记录速度的因素。 写入脉冲生成装置，其基因速率的写入脉冲适宜光学记录介质上，通过控制光通过的发光器件的发光器件驱动单元，以便做了期望的写入脉冲产生，包括控制单元，其提供信息的写入脉冲生成装置 在光学记录介质的信息和关于记录速度因子的类型; 和控制信号生成单元，其确定性地雷的多脉冲的所有这是基于在所述光记录介质的类型和记录速度因子的信息的多脉冲间隔要产生所有由所述控制单元提供，并基因率的类型 用于控制发光装置的驱动单元的信号所以没有从发光器件产生的具有确定性开采多脉冲型的写脉冲。 这样，写脉冲生成装置包括：控制单元，其设定所述写脉冲的电平为整个间隔或用于写标记和/或光学记录介质的雅丁到光的类型的写入空间的部分间隔 记录介质和记录速度因子; 和控制信号生成单元的所有其由所述控制单元和基因率控制的控制信号用于改变写脉冲的电平为一写标记和/或写空间的每个区间，并且所述控制信号发送给发光器件 驱动单元。 在光盘驱动器。根据该设备和方法，在与多种类型的光学记录介质和各种记录速度的兼容性得到改善，从而确实可以针对任何光学记录介质和任何记录速度因数来提供质量记录。

公开(公告)号：EP1288922A2

公开(公告)日：2003-03-05

申请号：EP02079398.0

申请日：1999-07-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo ,  Joo, Seong-sin ,  Yoon, Du-seop ,  Roh, Myung-do ,  Ahn, Yong-jin ,  Kim, Seoung-soo ,  Lee, Kyung-geun ,  Cho, Myeong-ho ,  Yang, Chang-jin, Samsung Electronics Co., Ltd ,  Kim, Jong-kyu ,  Ko, Sung-ro ,  Ohtsuka, Tatsuhiro

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/0045 ,  G11B7/00718 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/10009 ,  G11B20/1403

摘要： An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

摘要翻译： 它们提供了用于高密度光记录装置和电路的自适应写方法。 该电路包括用于鉴别输入数据的当前标记的量值与幅值控制写脉冲的雅舞蹈波形的鉴别器（102）和前导和/或结尾间隔的量值，发电机（104108） 输入数据的当前标记及前导和/或结尾间隔的自适应写脉冲，以产生的大小，以及用于通过自适应写脉冲与转换为电流信号在雅舞蹈驱动光源的驱动器（110）的 驱动功率水平的respectivement渠道。 的写脉冲波形的第一和/或负载的脉冲的宽度在雅舞蹈与输入NRZI数据的当前标记的量值和前导和/或结尾间隔的量值而变化，从而最小化抖动，以提高系统的可靠性和 性能。

公开(公告)号：EP1349244A2

公开(公告)日：2003-10-01

申请号：EP02256155.9

申请日：2002-09-05

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo

IPC分类号： H01S5/042

CPC分类号： G11B7/126 ,  G11B7/0062 ,  G11B7/1263 ,  H01S5/042 ,  H01S5/0683 ,  H01S5/06835

摘要： Provided is a laser diode driver for driving a laser diode in an optical recording/reproducing apparatus, and more particularly, a laser diode driver having an auto laser power control (APC) function, an optical pickup device and an optical recording/reproducing apparatus using the laser diode driver. The laser diode driver includes a multiplexer (408), a pulse generator (404), a differential amplifier (422), and an adder (414). The multiplexer selectively outputs drive potentials, such as a peak power drive potential, a bias power drive potential, a read power drive potential, and the like, corresponding to power levels of a laser signal in response to a select signal applied to the multiflexer (408). The pulse generator (404) generates the select signal applied to the multiplexer (408). The differential amplifier (422) calculates a difference between a monitor signal provided from a monitor diode for monitoring the laser signal output from the laser diode and a drive potential selected by the multiplexer (408). The adder (414) adds an output of the differential amplifier (422) and an output of the multiplexer (408) and outputs a signal for driving the laser diode. The laser diode driver itself performs the APC function, and thus can prevent malfunction caused by electromagnetic interference.

摘要翻译： 提供了一种用于在光学记录/再现装置，更具体地，具有自动激光功率控制的激光二极管驱动器（APC）在光学拾取装置和光学记录/功能使用再现装置驱动激光二极管的激光二极管驱动器 激光二极管驱动器。 激光二极管驱动器包括：多路复用器（408），一个脉冲发生器（404），差分放大器（422），以及加法器（414）。 多路转换器有选择地输出驱动电位，检查作为峰值功率驱动电位，偏置功率驱动电位，读出功率驱动电位等，对应于激光信号的功率电平以响应于施加到所述多Flexer的选择信号（ 408）。 所述脉冲发生器（404）基因用量施用到多路复用器（408）的选择信号。 差分放大器（422）计算从监控二极管提供了一种用于从激光二极管，并通过多路转换器（408）中选择的驱动电位监视激光输出信号的监控信号之间的差。 加法器（414）添加到差分放大器（422）和输出在多路复用器（408）的输出，并输出信号，用于驱动激光二极管。 激光二极管驱动器本身执行APC的功能，并且因此可以防止误动作由电磁干扰引起的。

公开(公告)号：EP1282117A2

公开(公告)日：2003-02-05

申请号：EP02079350.1

申请日：1999-07-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo ,  Joo, Seong-sin ,  Yoon, Du-seop ,  Roh, Myung-do ,  Ahn, Yong-jin ,  Kim, Seoung-soo ,  Lee, Kyung-geun ,  Cho, Myeong-ho ,  Yang, Chang-jin, c/o Digital Media R&D Center ,  Kim, Jong-kyu, 306-1703 Daewoo Apt., ,  Ko, Sung-ro ,  Ohtsuka, Tatsuhiro

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/0045 ,  G11B7/00718 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/10009 ,  G11B20/1403

摘要： An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

公开(公告)号：EP1136992A2

公开(公告)日：2001-09-26

申请号：EP01301809.8

申请日：2001-02-28

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo ,  Jin, Kyoung-bog, I.P.T Digital Media R&D Center ,  Go, Sung-ro

IPC分类号： G11B7/125

CPC分类号： G11B7/127 ,  G11B7/0045 ,  G11B7/126 ,  G11B7/1263 ,  G11B2007/0006 ,  H01S5/042 ,  H01S5/06835

摘要： An optical recording/reproducing apparatus and a method therefor, and more particularly, an auto laser diode power controlling apparatus for controlling the power of a laser diode to be in an optimal state and a method therefor are provided. The auto laser diode power controlling apparatus for controlling the output of a laser diode by comparing the current power level of an optical signal output by the LD with a reference power level and controlling the output of the LD according to the comparison result comprises a photo detector (PD) (214) for monitoring the current power level of the optical signal output by the LD, a sampler/holder (202) for sampling and holding the current power level output from the PD, a sampling and holding control signal generator (208) for generating a sampling and holding control signal for controlling the sampling operation of the sampler/holder (202) on the basis of a non return to zero inverted (NRZI) signal, and an operator (204) for comparing the current power level sampled by the sampler/holder with the reference power level and controlling the output of the LD according to the difference value. It is possible to improve recording and reproducing performance since rapid change in an optical output is appropriately controlled using different loops according to the kind and state of the disc.

摘要翻译： 提供一种光记录/再现装置及其方法，更具体地说，提供一种用于控制激光二极管的功率处于最佳状态的自动激光二极管功率控制装置及其方法。 用于通过将LD输出的光信号的当前功率电平与参考功率电平进行比较来控制激光二极管的输出并且根据比较结果控制LD的输出的自动激光二极管功率控制装置包括光电检测器 （PD）（214），用于监视由LD输出的光信号的当前功率电平，用于采样和保持从PD输出的当前功率电平的采样器/保持器（202），采样和保持控制信号发生器（208） ），用于产生用于基于不归零（NRZI）信号控制采样器/保持器（202）的采样操作的采样和保持控制信号;以及用于比较当前功率电平采样的操作器（204） 由具有参考功率电平的采样器/保持器根据差值控制LD的输出。 可以根据盘的种类和状态，使用不同的回路适当地控制光输出的快速变化，从而提高记录和再现性能。

公开(公告)号：EP1058246A3

公开(公告)日：2001-08-16

申请号：EP00301451.1

申请日：2000-02-24

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo

IPC分类号： G11B7/125

CPC分类号： G11B7/126 ,  G11B7/1263

摘要： A method and apparatus for controlling the power of a laser diode (160), which can prevent fluctuation in the laser power of the laser diode (160) at a record/playback area of an optical disc (180). The apparatus for controlling the power of the laser diode includes a controller (300) for providing an automatic power control of the laser diode (APC controller), interposed between an up/down counter (208) and a laser diode driver (140), the APC controller (300) for latching the output of the up/down counter (208) in synchronism with a periodic synchronization signal, and outputting the latch result to the laser diode driver (140). Therefore, the power level of the laser diode (160) can be periodically controlled according to the sub-divided control modes, so that the laser power level remains resilient to external noise, compared to continuous control operation through the entire mode.

摘要翻译： 一种用于控制激光二极管（160），它可以防止在激光二极管（160）的激光功率波动在光盘（180）的记录/重放区的功率的方法和装置。 用于控制激光二极管的功率的装置包括用于提供给激光二极管（APC控制器）的自动功率控制的控制器（300），上/下计数器（208）和激光二极管驱动器之间插入（140） 在APC控制部（300），用于锁存同步地增/减计数器（208）与一个周期性同步信号的输出，并且输出廷锁存结果提供给激光二极管驱动器（140）。 因此，激光二极管（160）的功率电平可被周期性地控制gemäß到细分的控制模式，所以没有激光功率电平保持弹性外部噪声，连续相比通过整个时尚控制操作。

公开(公告)号：EP1058246A2

公开(公告)日：2000-12-06

申请号：EP00301451.1

申请日：2000-02-24

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo

IPC分类号： G11B7/125

CPC分类号： G11B7/126 ,  G11B7/1263

摘要： A method and apparatus for controlling the power of a laser diode (160), which can prevent fluctuation in the laser power of the laser diode (160) at a record/playback area of an optical disc (180). The apparatus for controlling the power of the laser diode includes a controller (300) for providing an automatic power control of the laser diode (APC controller), interposed between an up/down counter (208) and a laser diode driver (140), the APC controller (300) for latching the output of the up/down counter (208) in synchronism with a periodic synchronization signal, and outputting the latch result to the laser diode driver (140). Therefore, the power level of the laser diode (160) can be periodically controlled according to the sub-divided control modes, so that the laser power level remains resilient to external noise, compared to continuous control operation through the entire mode.

公开(公告)号：EP1282117B1

公开(公告)日：2010-02-17

申请号：EP02079350.1

申请日：1999-07-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo ,  Joo, Seong-sin ,  Yoon, Du-seop ,  Roh, Myung-do ,  Ahn, Yong-jin ,  Kim, Seoung-soo ,  Lee, Kyung-geun ,  Cho, Myeong-ho ,  Yang, Chang-jin, c/o Digital Media R&D Center ,  Kim, Jong-kyu, 306-1703 Daewoo Apt., ,  Ko, Sung-ro ,  Ohtsuka, Tatsuhiro

IPC分类号： G11B7/125 ,  G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/0045 ,  G11B7/00718 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/10009 ,  G11B20/1403

摘要： An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

公开(公告)号：EP1288922A3

公开(公告)日：2008-12-10

申请号：EP02079398.0

申请日：1999-07-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seo, Jin-gyo ,  Joo, Seong-sin ,  Yoon, Du-seop ,  Roh, Myung-do ,  Ahn, Yong-jin ,  Kim, Seoung-soo ,  Lee, Kyung-geun ,  Cho, Myeong-ho ,  Yang, Chang-jin, Samsung Electronics Co., Ltd ,  Kim, Jong-kyu ,  Ko, Sung-ro ,  Ohtsuka, Tatsuhiro

IPC分类号： G11B7/125 ,  G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/0045 ,  G11B7/00718 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/10009 ,  G11B20/1403

摘要： An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

摘要翻译： 提供了用于高密度光学记录设备的自适应写入方法及其电路。 该电路包括鉴别器（102），用于鉴别输入数据的当前标记的大小和前沿和/或后沿空间的大小;发生器（104,108），用于根据幅度控制写入脉冲的波形 输入数据的当前标记的数量以及引导和/或尾随空间的大小以产生自适应写入脉冲;以及驱动器（110），用于通过将自适应写入脉冲转换为电流信号来驱动光源 驱动各个通道的功率水平。 写入脉冲波形的第一和/或最后一个脉冲的宽度根据输入NRZI数据的当前标记的大小和前导和/或尾随空间的大小而变化，由此使抖动最小化以增强系统可靠性并且 性能。