公开(公告)号：US07203148B2

公开(公告)日：2007-04-10

申请号：US10419786

申请日：2003-04-22

申请人： Jong-ryull Kim ,  Pyong-yong Seong ,  No-jun Kwak ,  Chul-ho Jeon ,  Ki-bong Yun ,  Bong-hwoan Choi

发明人： Jong-ryull Kim ,  Pyong-yong Seong ,  No-jun Kwak ,  Chul-ho Jeon ,  Ki-bong Yun ,  Bong-hwoan Choi

IPC分类号： G11B7/00

CPC分类号： G11B19/127 ,  G11B2007/0006

摘要： A method and an apparatus for identifying the type of an optical recording medium are provided. The method includes detecting a surface reflected signal SS and a writable-surface reflected signal SR of an optical recording medium while performing a focus search using a first optical system, counting a time difference DTS between a high peak and a low peak of the surface reflected signal SS, counting a time difference DTR between the high peak of the surface reflected signal and a high peak of the writable-surface reflected signal SR, obtaining DT by substituting DTR and DTS into the following equation: DT = ( DT R ) a ( DT S ) b ⁢ ⁢ ( a - b ≥ 1 2 ) and comparing DT with a reference time T, and driving the first optical system if DT is greater than T and driving a second optical system if DT is not greater than T.

摘要翻译： 提供了一种用于识别光学记录介质的类型的方法和装置。 该方法包括在使用第一光学系统执行聚焦搜索的同时检测光学记录介质的表面反射信号S S S S和可写表面反射信号S SUB S R S，计数 在表面反射信号S S S的高峰值和低峰值之间的时差DT S S / S，计数在表面反射信号S S S上的时间差DT＆lt; S＆lt; 表面反射信号的高峰值和可写表面反射信号S的高峰值，通过用DT＆lt; R＆gt;和DT＆lt; S＆gt;和＆lt; >进入以下公式：

公开(公告)号：US5644561A

公开(公告)日：1997-07-01

申请号：US628938

申请日：1996-04-08

申请人： Woog-Ig Son ,  Ki-Bong Yun

发明人： Woog-Ig Son ,  Ki-Bong Yun

IPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B19/12 ,  G11B27/36

CPC分类号： G11B19/12 ,  G11B7/0037

摘要： A method of discerning an optical disk in a compact disk drive which includes the steps of moving an optical pick-up device to a table of contents (TOC) region of an optical disk to perform a focusing operation for reading data from the optical disk, and discerning whether an optical disk is loaded on a turntable of the compact disk drive. When the optical disk is loaded in the compact disk drive, the loaded optical disk is rotatably driven by a spindle motor. The time necessary for the rotating speed of the optical disk to reach a predetermined speed is counted, and the counted time is then compared with a predetermined time to determine whether the optical disk is one of a first type having, for example, a eight centimeters diameter and a second type having, for example, a twelve centimeters diameter. If the counted time is less than the predetermined time, the loaded optical disk is determined as a eight centimeters disk. If, on the other hand, the counted time is not less than the predetermined time, i.e., the counted time is equal or greater than the predetermined time, the loaded optical disk is determined as a twelve centimeters disk. According to the present invention, the size of a loaded optical disk is determined based on the recognition that the time necessary for the loaded optical disk to reach a normal rotating speed will differ depending on the weight and thereby the size of the loaded optical disk. This method will considerably reduce the time delay between the loading operation and playing operations.

摘要翻译： 一种识别光盘驱动器中的光盘的方法，包括将光拾取装置移动到光盘的目录（TOC）区域以执行从光盘读取数据的聚焦操作的步骤， 并且辨别光盘是否装载在光盘驱动器的转盘上。 当光盘装载在光盘驱动器中时，装载的光盘由主轴电机可旋转地驱动。 对光盘的转速达到规定速度所需的时间进行计数，然后将计时的时间与规定时间进行比较，判断光盘是否为例如八厘米 直径和第二类型，例如具有12厘米直径。 如果计数时间小于预定时间，则将加载的光盘确定为八厘米盘。 另一方面，如果计数时间不小于预定时间，即计数时间等于或大于预定时间，则将加载的光盘确定为十二厘米盘。 根据本发明，由装载光盘达到正常转速所需的时间将根据重量和所装载的光盘尺寸的不同而确定装入光盘的尺寸。 该方法将大大减少加载操作和播放操作之间的时间延迟。

公开(公告)号：US06785211B2

公开(公告)日：2004-08-31

申请号：US09917267

申请日：2001-07-30

申请人： Jong-hoon Lee ,  Sung-ro Go ,  Kyoung-bok Jin ,  Ki-bong Yun

发明人： Jong-hoon Lee ,  Sung-ro Go ,  Kyoung-bok Jin ,  Ki-bong Yun

IPC分类号： G11B390

CPC分类号： G11B7/126

摘要： An automatic power control (APC) apparatus reducing time necessary for stabilizing an APC circuit at the initial stage of automatic power control of a disc drive is provided. The APC circuit is designed such that a voltage of a predetermined percent of an expected output voltage is previously added to an APC output voltage of the APC circuit of a laser diode, thereby greatly reducing a stabilizing time necessary for stabilizing an APC output voltage at an initial stage in a write or read mode. Therefore, the loss of data in a high speed write or read mode can be reduced. Particularly, the loss of data in a high speed write mode can be greatly reduced.

摘要翻译： 提供了一种自动功率控制（APC）装置，其减少在盘驱动器的自动功率控制的初始阶段稳定APC电路所需的时间。 APC电路被设计成使得预期输出电压的预定百分比的电压预先添加到激光二极管的APC电路的APC输出电压，从而大大减少了稳定APC输出电压所需的稳定时间 在写入或读取模式下的初始阶段。 因此，可以降低高速写入或读取模式下的数据丢失。 特别地，可以大大降低高速写入模式中的数据丢失。

公开(公告)号：US5808982A

公开(公告)日：1998-09-15

申请号：US647421

申请日：1996-05-13

申请人： Ki-bong Yun

发明人： Ki-bong Yun

IPC分类号： G11B21/08 ,  G11B7/08 ,  G11B7/085 ,  G11B7/09 ,  G11B7/00 ,  G11B5/596

CPC分类号： G11B7/08541 ,  G11B7/08588 ,  G11B7/0945

摘要： A disk calibration and search method in a disk drive is provided, in which, after an initialization step, a pickup is jumped to a first position and moved radially in a predetermined direction in response to pulses generated by a frequency generator. During this radial movement the number of tracks crossed are counted. The counting is continued until a predetermined number of the pulses generated by the frequency generator have been generated. A calculated frequency generator track number is then obtained by dividing the counted number of tracks by the predetermined number of pulses generated by the frequency generator, i.e., calculating a unit track number of the disk per a single movement of the pickup, that is, the number of tracks the pickup moves per pulse generated by the frequency generator. The calculated frequency generator track number is stored in memory used to control the frequency generator for jumping the pickup during a search for a target track. An average pitch between the tracks is calculated in accordance with the calculated unit track number; and a moving amount for a drive to jump the pickup from a current position to a target track is then determined. The calibration and search methods will be described in greater detail below.

摘要翻译： 提供了磁盘驱动器中的盘校准和搜索方法，其中，在初始化步骤之后，拾取器被跳转到第一位置并且响应于由频率发生器产生的脉冲在预定方向上径向移动。 在该径向运动期间，计数穿过的轨道数。 继续计数，直到产生由频率发生器产生的预定数量的脉冲。 然后通过将计数的轨道数除以由频率发生器产生的预定脉冲数，即计算拾取器的单次运动的盘的单位轨道号，即， 拾音器由频率发生器产生的每个脉冲移动的磁道数。 所计算的频率发生器轨道号存储在用于控制频率发生器的存储器中，用于在搜索目标轨道期间跳跃拾​​取器。 根据计算的单位轨道号计算轨道之间的平均间距; 然后确定用于将拾取器从当前位置跳转到目标轨道的驱动器的移动量。 下面将更详细地描述校准和搜索方法。

公开(公告)号：USRE41687E1

公开(公告)日：2010-09-14

申请号：US09665183

申请日：2000-09-15

申请人： Ki-Bong Yun

发明人： Ki-Bong Yun

IPC分类号： G11B7/00 ,  G11B5/596

CPC分类号： G11B7/08541 ,  G11B7/08588 ,  G11B7/0945

摘要： A disk calibration and search method in a disk drive is provided, in which, after an initialization step, a pickup is jumped to a first position and moved radially in a predetermined direction in response to pulses generated by a frequency generator. During this radial movement the number of tracks crossed are is counted. The counting is continued until a predetermined number of the pulses generated by the frequency generator have been generated. A calculated frequency generator track number is then obtained by dividing the counted number of tracks by the predetermined number of pulses generated by the frequency generator, i.e., calculating a unit track number of the disk per a single movement of the pickup, that is, the number of tracks the pickup moves per pulse generated by the frequency generator. The calculated frequency generator track number is stored in memory used to control the frequency generator for jumping the pickup during a search for a target track. An average pitch between the tracks is calculated in accordance with the calculated unit track number; and a moving amount for a drive to jump the pickup from a current position to a target track is then determined. The calibration and search methods will be described in greater detail below.

摘要翻译： 提供了磁盘驱动器中的盘校准和搜索方法，其中，在初始化步骤之后，拾取器被跳转到第一位置并且响应于由频率发生器产生的脉冲在预定方向上径向移动。 在这个径向移动期间，计数交叉的轨道数。 继续计数，直到产生由频率发生器产生的预定数量的脉冲。 然后通过将计数的轨道数除以由频率发生器产生的预定脉冲数，即计算拾取器的单次运动的盘的单位轨道号，即， 拾音器由频率发生器产生的每个脉冲移动的磁道数。 所计算的频率发生器轨道号存储在用于控制频率发生器的存储器中，用于在搜索目标轨道期间跳跃拾​​取器。 根据计算的单位轨道号计算轨道之间的平均间距; 然后确定用于将拾取器从当前位置跳转到目标轨道的驱动器的移动量。 下面将更详细地描述校准和搜索方法。

公开(公告)号：US06469975B1

公开(公告)日：2002-10-22

申请号：US08816679

申请日：1997-03-13

申请人： Ki-bong Yun

发明人： Ki-bong Yun

IPC分类号： G11B2300

CPC分类号： G11B7/08529 ,  G11B7/08582

摘要： A method for controlling the speed of a sled motor for an optical disk drive, wherein the sled motor is first driven according to a predetermined target velocity profile stored in a microcomputer. Then, a frequency of a sinusoidal wave output by a Hall-effect sensor is detected and it is determined whether the frequency of the sinusoidal wave is greater or smaller than a predetermined value. The target speed is incremented by a predetermined amount when the frequency of the sinusoidal wave is greater than the predetermined value, and is decremented by the predetermined amount when the frequency of the sinusoidal wave is smaller than the predetermined value.

摘要翻译： 一种用于控制光盘驱动器的滑动马达的速度的方法，其中，首先根据存储在微计算机中的预定目标速度曲线来驱动滑动马达。 然后，检测由霍尔效应传感器输出的正弦波的频率，并且确定正弦波的频率是否大于或小于预定值。 当正弦波的频率大于预定值时，目标速度增加预定量，当正弦波的频率小于预定值时，目标速度递减预定量。