公开(公告)号：US09030922B2

公开(公告)日：2015-05-12

申请号：US12480944

申请日：2009-06-09

Applicant: Chih-Ching Yu ,  Hung-Hsiang Chang ,  Ping-Tsai Tsai

Inventor： Chih-Ching Yu ,  Hung-Hsiang Chang ,  Ping-Tsai Tsai

IPC: G11B7/00 ,  G11B7/1263 ,  G11B7/1267

CPC classification number: G11B7/1263 ,  G11B7/1267

Abstract: The invention relates to recording on a medium, and in particular, to laser control during recording data on an optical medium. A laser control method for dynamically adjusting laser power during recording data onto an optical disc comprises: recording normal data onto the optical disc according to an initial laser power; stopping recording when a trigger is generated; reading back the recorded normal data and generating a first recording quality index; recording a test pattern at a test pattern starting point according to a selected laser power; reading back the test pattern and generating a second recording quality index; and determining an adaptive laser power to continually record the normal data according to the first recording quality index and the second recording quality index.

公开(公告)号：US08406101B2

公开(公告)日：2013-03-26

申请号：US12275370

申请日：2008-11-21

Applicant: Chih-Ching Yu ,  Ying-Feng Huang ,  Yu-Chun Lin

Inventor： Chih-Ching Yu ,  Ying-Feng Huang ,  Yu-Chun Lin

IPC: G11B7/00

CPC classification number: G11B7/13925 ,  G11B7/1378 ,  G11B2007/13727

Abstract: The invention provides an optical disk drive. In one embodiment, the optical disk drive comprises a feeding device, a power driver, and a controller. The feeding device comprises a spherical aberration (SA) lens and a stepping motor, wherein the SA lens corrects spherical aberration of a light beam emitted by a pickup head, and the stepping motor moves the SA lens according to a plurality of control signals. The power driver generates the control signals to drive the stepping motor to move the SA lens. The controller directs the power driver to drive the stepping motor to move the SA lens with only stable steps when the SA lens is required to move, so that the stepping motor is in a stable state without inducing step errors after the stepping motor rotates with the stable steps.

Abstract translation: 本发明提供一种光盘驱动器。 在一个实施例中，光盘驱动器包括馈送装置，功率驱动器和控制器。 馈送装置包括球面像差（SA）透镜和步进电机，其中SA透镜校正由拾取头发射的光束的球面像差，并且步进电机根据多个控制信号移动SA透镜。 电源驱动器产生控制信号以驱动步进电机移动SA镜头。 当SA镜头需要移动时，控制器引导电源驱动器驱动步进电机，以稳定的步进移动SA镜头，使步进电机处于稳定状态，而不会在步进电机旋转后引起步进错误 稳定的步骤。

公开(公告)号：US20110261668A1

公开(公告)日：2011-10-27

申请号：US12764254

申请日：2010-04-21

Applicant: Chih-Ching YU ,  Yu-Hsuan LIN

Inventor： Chih-Ching YU ,  Yu-Hsuan LIN

IPC: G11B20/10

CPC classification number: H03M13/3738 ,  G11B20/10009 ,  G11B20/10018 ,  G11B20/10351 ,  G11B20/1037 ,  G11B2220/2537 ,  H03M13/41 ,  H03M13/6331 ,  H03M13/6343

Abstract: An apparatus for improving decoding accuracy of an equalized signal having a direct current (DC) level obtained from an optical disk is provided. A Viterbi decoder is configured to decode the equalized signal and output a Viterbi-decoded signal. A DC controller is configured to adjust the DC level of the equalized signal such that the equalized signal with the adjusted DC level is decoded.

Abstract translation: 提供一种用于提高从光盘获得的具有直流（DC）电平的均衡信号的解码精度的装置。 维特比解码器被配置为对均衡信号进行解码并输出维特比解码信号。 DC控制器被配置为调整均衡信号的DC电平，使得具有经调整的DC电平的均衡信号被解码。

公开(公告)号：US20110110468A1

公开(公告)日：2011-05-12

申请号：US12614431

申请日：2009-11-08

Applicant: Chih-Ching Yu

Inventor： Chih-Ching Yu

IPC: H04L27/06

CPC classification number: H03M13/35 ,  H03M13/3707 ,  H03M13/41 ,  H03M13/4107

Abstract: A decoding circuit includes: a level adjuster with pattern dependency arranged to generate a plurality of Viterbi target levels with pattern dependency; and a Viterbi decoder arranged to perform Viterbi decoding according to the Viterbi target levels with pattern dependency. A decoding circuit includes a Viterbi decoder arranged to perform Viterbi decoding, and the Viterbi decoder includes a branch metric generator arranged to generate a plurality of branch metrics with pattern dependency according to an input of the Viterbi decoder and a plurality of Viterbi target levels with pattern dependency. In particular, the branch metric generator includes: a plurality of branch metric generation paths arranged to generate a plurality of intermediate values according to the input of the Viterbi decoder and the Viterbi target levels with pattern dependency, respectively; and a selection unit for selecting a portion of the intermediate values as the branch metrics with pattern dependency.

Abstract translation: 解码电路包括：具有图案依赖性的电平调节器，被布置为产生具有图案依赖性的多个维特比目标电平; 以及维特比解码器，被配置为根据具有模式依赖性的维特比目标级别执行维特比解码。 解码电路包括被配置为执行维特比解码的维特比解码器，维特比解码器包括分支度量发生器，其被配置为根据维特比解码器的输入和具有模式的多个维特比目标电平生成具有模式依赖性的多个分支度量 依赖。 特别地，分支量度生成器包括：多个分支量度生成路径，其被配置为分别根据维特比解码器的输入和维特比目标水平分别产生多个中间值，具有模式依赖性; 以及选择单元，用于选择中间值的一部分作为具有模式依赖性的分支度量。

公开(公告)号：US20100293431A1

公开(公告)日：2010-11-18

申请号：US12621509

申请日：2009-11-19

Applicant: Pi-Hai Liu ,  Chih-Ching Yu ,  Li-Lien Lin ,  Shih-Hsin Chen ,  Shih-Ta Hung

Inventor： Pi-Hai Liu ,  Chih-Ching Yu ,  Li-Lien Lin ,  Shih-Hsin Chen ,  Shih-Ta Hung

IPC: H03M13/05 ,  H03M13/29 ,  G06F11/10

CPC classification number: G11B20/18 ,  G11B20/1833 ,  G11B2020/1272 ,  G11B2020/1823 ,  G11B2020/1846 ,  G11B2220/2541 ,  H03M13/2954

Abstract: An error correction method for correcting an first ECC code from a storage unit, comprising: (a) marking at least a first part of the first ECC code according to a correction result generated by correcting error of the first ECC code, to generate a first error correction reference information; and (b) marking at least a second part of the first ECC code according to the first error correction reference information to generate a second error correction reference information.

Abstract translation: 一种用于从存储单元校正第一ECC代码的纠错方法，包括：（a）根据通过校正第一ECC代码的错误产生的校正结果来标记第一ECC代码的至少第一部分，以产生第一ECC代码 纠错参考信息; 和（b）根据第一纠错参考信息标记第一ECC码的至少第二部分，以产生第二纠错参考信息。

公开(公告)号：US07778132B2

公开(公告)日：2010-08-17

申请号：US11424552

申请日：2006-06-16

Applicant: Chih-Hsiung Chu ,  Chih-Ching Yu

Inventor： Chih-Hsiung Chu ,  Chih-Ching Yu

IPC: G11B7/00

CPC classification number: G11B7/00456

Abstract: A method for optimizing write parameters using two-stage adjustment is provided. A first kind of write strategy parameters optimization procedure for adjusting at least one static write strategy parameter of a write strategy is performed. A second kind of write strategy parameters optimization procedure for adjusting at least one dynamic write strategy parameter of the write strategy is performed after performing the first kind of write strategy parameters optimization procedure. The static write strategy parameter corresponds to a signal length of a pit on an optical disk and the dynamic write strategy parameter is utilized to overcome heat interference when forming the pit.

Abstract translation: 提供了一种使用两级调整优化写入参数的方法。 执行用于调整写入策略的至少一个静态写入策略参数的第一种写入策略参数优化过程。 在执行第一种写策略参数优化过程之后，执行用于调整写策略的至少一个动态写策略参数的第二种写策略参数优化过程。 静态写入策略参数对应于光盘上的凹坑的信号长度，并且动态写入策略参数用于克服当形成凹坑时的热干扰。

公开(公告)号：US20100034069A1

公开(公告)日：2010-02-11

申请号：US12188219

申请日：2008-08-08

Applicant: Chih-Ching Yu ,  Yu-Chun Lin

Inventor： Chih-Ching Yu ,  Yu-Chun Lin

IPC: G11B7/00

CPC classification number: G11B7/0916 ,  G11B7/0956

Abstract: A method for controlling focus loop of an optical storage device includes: moving a lens of an optical pick-up head in a first moving direction; performing a focusing operation when a first S-curve sequence appears in a focus error signal; and when a light beam generated from the optical pick-up head is not focused on an optical disc, performing the focusing operation when a second S-curve sequence appears in the focus error signal; wherein the first S-curve sequence and the second S-curve sequence appear in the focus error signal during one revolution of the optical disc.

Abstract translation: 一种用于控制光存储装置的聚焦环的方法包括：在第一移动方向移动光学拾取头的透镜; 当第一S曲线序列出现在聚焦误差信号中时进行聚焦操作; 并且当从光学拾取头产生的光束不聚焦在光盘上时，当在聚焦误差信号中出现第二S曲线序列时执行聚焦操作; 其中所述第一S曲线序列和所述第二S曲线序列在所述光盘的一圈内出现在所述聚焦误差信号中。

公开(公告)号：US20090175142A1

公开(公告)日：2009-07-09

申请号：US11969930

申请日：2008-01-07

Applicant: Ping-Tsai Tsai ,  Pin-Chou Liu ,  Sung-Yang Wu ,  Chih-Ching Yu ,  Ya-Fang Nien ,  Hsin-Chuan Lai

Inventor： Ping-Tsai Tsai ,  Pin-Chou Liu ,  Sung-Yang Wu ,  Chih-Ching Yu ,  Ya-Fang Nien ,  Hsin-Chuan Lai

IPC: G11B5/09

CPC classification number: G11B27/36 ,  G11B20/1217 ,  G11B2020/1285 ,  G11B2220/216 ,  G11B2220/2537

Abstract: A method of recording data on a storage medium is provided. A first recording indicator is written on the storage medium to indicate a first state of a data recording thereon. A second recording indicator is written on the storage medium to indicate a second state of the data recording thereon. A recording status of the data recording is determined accordingly in accordance with the first and second indicators.

Abstract translation: 提供了一种在存储介质上记录数据的方法。 第一记录指示符被写在存储介质上以指示其上的数据记录的第一状态。 第二记录指示符被写在存储介质上以指示其上的数据记录的第二状态。 根据第一和第二指示器相应地确定数据记录的记录状态。

公开(公告)号：US20070153649A1

公开(公告)日：2007-07-05

申请号：US11306500

申请日：2005-12-30

Applicant: Chih-Ching Yu ,  Yu-Chun Lin

Inventor： Chih-Ching Yu ,  Yu-Chun Lin

IPC: G11B19/00

CPC classification number: G11B7/1267

Abstract: A method for determining an optimum write power for writing data to an optical disc is disclosed. The method includes utilizing a plurality of candidate write powers for writing data to the optical disc; measuring at least a writing quality parameter corresponding to each of the candidate write powers, respectively; determining a characteristic curve of the writing quality parameters to the candidate write powers; and determining the optimum write power according to a write power corresponding to a target inflection point of the characteristic curve.

Abstract translation: 公开了一种确定用于将数据写入光盘的最佳写入功率的方法。 该方法包括利用多个候选写入功率将数据写入光盘; 分别测量与所述候选写入功率中的每一个对应的至少写入品质参数; 确定写入质量参数对候选写入功率的特性曲线; 以及根据与特征曲线的目标拐点相对应的写入功率来确定最佳写入功率。

公开(公告)号：US20060114780A1

公开(公告)日：2006-06-01

申请号：US10904759

申请日：2004-11-26

Applicant: CHIA-CHUNG CHEN ,  CHIH-CHING YU

Inventor： CHIA-CHUNG CHEN ,  CHIH-CHING YU

IPC: G11B5/09

CPC classification number: G11B7/1267 ,  G11B7/00456 ,  G11B2007/0006

Abstract: A method and a recording device capable of selecting a preferred write strategy from a plurality of write strategies for an optical disc. The optical disc contains a characteristic value. The method includes: reading the characteristic value from the optical disc; selecting a first write strategy from the write strategies to be an active test write strategy according to the characteristic value of the optical disc; writing a test pattern onto the optical disc according to the active test write strategy; and reading the written test pattern from the optical disc, checking if the written test pattern satisfies a corresponding criterion, and utilizing the active test write strategy to be the preferred write strategy if the written test pattern satisfies the corresponding criterion.

Abstract translation: 一种能够从光盘的多个写入策略中选择优选的写入策略的方法和记录装置。 光盘包含特征值。 该方法包括：从光盘读取特征值; 根据光盘的特征值，从写入策略中选择第一写策略作为主动测试写策略; 根据主动测试写入策略将测试图案写入光盘; 并从光盘读取写入的测试图形，检查写入的测试图案是否满足相应的标准，如果写入的测试图案满足相应的标准，则使用主动测试写入策略作为首选写入策略。