公开(公告)号：US06775208B1

公开(公告)日：2004-08-10

申请号：US09654909

申请日：2000-09-05

申请人： Ching-Hwa Liu ,  Chun-Hsiang Tsai ,  Wei-Hsin Hsu

发明人： Ching-Hwa Liu ,  Chun-Hsiang Tsai ,  Wei-Hsin Hsu

IPC分类号： G11B700

CPC分类号： G11B7/08511 ,  G11B7/08529 ,  G11B2007/0013

摘要： The present invention provides a method for controlling a focus speed of a pick-up head while performing a layer jump operation over a multi-layer optical disk in an optical information reproducing apparatus. The optical information reproducing apparatus includes the pick-up head, an actuator and a counter. The pick-up head has an objective lens positioned over a first focus of the multi-layer optical disk and in response to a signal reflected from the multi-layer optical disk, will generate a RF level signal and. The actuator is electronically connected to the pick-up head for driving the objective lens to perform the layer jump operation in response to a kick pulse signal. The counter generates a counter value in response to the kick pulse signal. The method comprises the steps of sending the kick pulse signal to the actuator for kicking the objective lens out of the first focus; processing the RF level signal and the counter value for generating a speed control data according to a predetermined procedure; and driving the objective lens to a second focus through the actuator in response to the speed control data.

摘要翻译： 本发明提供了一种用于在光信息再现装置中通过多层光盘执行层跳转操作时控制拾取头的聚焦速度的方法。 光信息重放装置包括拾取头，致动器和计数器。 拾取头具有位于多层光盘的第一焦点上的物镜，并且响应于从多层光盘反射的信号，将产生RF电平信号。 致动器电连接到拾取头，用于驱动物镜，以响应于反冲脉冲信号执行层跳跃操作。 计数器响应于反冲脉冲信号产生计数器值。 该方法包括以下步骤：将启动脉冲信号发送到致动器以将物镜从第一焦点中踢出; 处理RF电平信号和用于根据预定过程产生速度控制数据的计数器值; 并且响应于速度控制数据，通过致动器将物镜驱动到第二焦点。

公开(公告)号：US20070286003A1

公开(公告)日：2007-12-13

申请号：US11758214

申请日：2007-06-05

申请人： Kuo-Kai Liao ,  Ching-Hwa Liu

发明人： Kuo-Kai Liao ,  Ching-Hwa Liu

IPC分类号： G11C7/04

CPC分类号： G11B7/0037 ,  G11B7/08505

摘要： A temperature gain compensation system for disk label laser etching process contains a servo device, a DSP, a driver IC, and a temperature compensator. A temperature sensor in the servo device transmits a temperature signal to the temperature compensator. Then the temperature compensator obtains a temperature difference and calculates a corresponding feedback control signal. The DSP and the driver IC process the feedback control signal to adjust the servo device.

摘要翻译： 用于盘式标签激光蚀刻工艺的温度增益补偿系统包括伺服装置，DSP，驱动器IC和温度补偿器。 伺服装置中的温度传感器将温度信号传送到温度补偿器。 然后温度补偿器获得温度差并计算相应的反馈控制信号。 DSP和驱动IC处理反馈控制信号来调整伺服装置。

公开(公告)号：US07218587B2

公开(公告)日：2007-05-15

申请号：US10427906

申请日：2003-05-02

申请人： Hsien-Yu Tseng ,  Shih-Chieh Lee ,  Ching-Hwa Liu

发明人： Hsien-Yu Tseng ,  Shih-Chieh Lee ,  Ching-Hwa Liu

IPC分类号： G11B7/00

CPC分类号： G11B7/126

摘要： A method for determining the writing power of data recording devices. First, the inner circle and outer circle of recording media are processed with optimum power calibration (OPC) to obtain an inner circle optimum writing power and an outer circle optimum writing power respectively. The writing power is determined according to the inner circle optimum writing power, outer circle optimum writing power, and/or the time of write speed is raised from the minimum write speed to the maximum write speed of the data recording device.

摘要翻译： 一种用于确定数据记录装置的写入功率的方法。 首先，以最佳功率校准（OPC）处理记录介质的内圈和外圆，分别获得内圆最佳写功率和外圆最佳写功率。 根据内圆最佳写入功率，外圆最佳写入功率和/或写入速度的时间从数据记录装置的最小写入速度升高到最大写入速度来确定写入功率。

公开(公告)号：US06922382B2

公开(公告)日：2005-07-26

申请号：US10357426

申请日：2003-02-04

申请人： Hsien-Yu Tseng ,  Shih-Chieh Lee ,  Ching-Hwa Liu

发明人： Hsien-Yu Tseng ,  Shih-Chieh Lee ,  Ching-Hwa Liu

IPC分类号： G11B20/10 ,  G11B5/09

CPC分类号： G11B20/10527 ,  G11B2020/10703 ,  G11B2020/10814

摘要： A method for adjusting the write speed of a data recording device and apparatus thereof. First, the recording media is written to at a write speed, during which the number of buffer underrun events is counted. Then, the write speed is adjusted according to the number of buffer underrun events until writing is finished.

摘要翻译： 一种用于调整数据记录装置的写入速度的方法及其装置。 首先，以写入速度写入记录介质，在该速度下对缓冲器欠载事件的数量进行计数。 然后，根据缓冲区欠载事件的数量调整写入速度，直到写入完成。