公开(公告)号：US20080100356A1

公开(公告)日：2008-05-01

申请号：US11977352

申请日：2007-10-24

申请人： Dong-Jin Lee

发明人： Dong-Jin Lee

IPC分类号： H03L7/06

CPC分类号： H03L7/0814 ,  H03L7/0818 ,  H03L7/10

摘要： A delay locked loop (DLL) circuit has a first delay line that delays a received external clock signal for a fine delay time and then outputs a first internal clock signal; a duty cycle correction unit that corrects a duty cycle of the first internal clock signal and then outputs a second clock signal; a second delay line that delays the second clock signal for a coarse delay time and then outputs a second internal clock signal; and a phase detection and control unit that detects the difference between the phases of the external clock signal and the fed back second internal clock signal, and controls the fine delay time and the coarse delay time. The DLL circuit performs coarse locking and fine locking by using different type delay cells, and thus consumes a small amount of power and robustly withstands jitter and variation in PVT variables.

摘要翻译： 延迟锁定环（DLL）电路具有延迟接收到的外部时钟信号以获得精细延迟时间的第一延迟线，然后输出第一内部时钟信号; 占空比校正单元，校正第一内部时钟信号的占空比，然后输出第二时钟信号; 第二延迟线，延迟所述第二时钟信号的粗略延迟时间，然后输出第二内部时钟信号; 以及相位检测和控制单元，其检测外部时钟信号和反馈的第二内部时钟信号的相位之间的差异，并且控制精细延迟时间和粗略延迟时间。 DLL电路通过使用不同类型的延迟单元执行粗略锁定和精细锁定，从而消耗少量的功率，并且坚固地承受PVT变量的抖动和变化。

公开(公告)号：US07282968B2

公开(公告)日：2007-10-16

申请号：US11327688

申请日：2006-01-06

申请人： Dong-Jin Lee

发明人： Dong-Jin Lee

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： H03K19/0005 ,  G11C7/1051 ,  G11C7/1057 ,  H03K17/164

摘要： A data output driver and a semiconductor memory device having the same are disclosed. This data output driver includes: a rising transition slope adjuster including a plurality of first delay units cascade-connected to each other and receiving data and generating delayed data, each of the first delay units having a delay time which varies in response to a first control signal; a falling transition slope adjuster including a plurality of second delay units cascade-connected to each other and receiving inverted data and generating delayed inverted data, each of the second delay units having a delay time which varies in response to a second control signal; a pull-up driver including a plurality of pull-up circuits, the driving capabilities of the pull-up circuits being adjustable in response to a third control signal, each pull-up circuit pulling-up output data in response to each of the data and the delayed data; and a pull-down driver including a plurality of pull-down circuits, the driving capabilities of the pull-down circuits being adjustable in response to a fourth control signal, each pull-down circuit pulling-down output data in response to each of the inverted data and the delayed inverted data, wherein the first control signal varies in response to the third control signal, and wherein the second control signal varies in response to the fourth control signal. Accordingly, the rising and falling transition slopes of the output data can be constant even when the driving capability is varied, so that output data having desired characteristics can be produced.

摘要翻译： 公开了一种数据输出驱动器和具有该数据输出驱动器的半导体存储器件。 该数据输出驱动器包括：上升过渡斜率调整器，包括彼此级联的多个第一延迟单元，并接收数据并产生延迟数据，每个第一延迟单元具有响应于第一控制而变化的延迟时间 信号; 一个下降的转变斜率调节器，包括彼此级联的多个第二延迟单元，并接收反相数据并产生延迟的反相数据，每个第二延迟单元具有响应于第二控制信号变化的延迟时间; 包括多个上拉电路的上拉驱动器，上拉电路的驱动能力可响应于第三控制信号而被调节，每个上拉电路响应于每个数据提取输出数据 和延迟数据; 以及包括多个下拉电路的下拉驱动器，所述下拉电路的驱动能力响应于第四控制信号而是可调节的，每个下拉电路根据每个下拉电路的每个下拉输出数据 反转数据和延迟反转数据，其中第一控制信号响应于第三控制信号而变化，并且其中第二控制信号响应于第四控制信号而变化。 因此，即使驱动能力变化，输出数据的上升和下降转换斜率也可以是恒定的，从而可以产生具有期望特性的输出数据。

公开(公告)号：US20070217270A1

公开(公告)日：2007-09-20

申请号：US11802443

申请日：2007-05-23

申请人： Dong-Jin Lee ,  Kye-Hyun Kyung ,  Chang-Sik Yoo

发明人： Dong-Jin Lee ,  Kye-Hyun Kyung ,  Chang-Sik Yoo

IPC分类号： G11C7/00

CPC分类号： G11C7/1057 ,  G11C7/1051 ,  G11C2207/105

摘要： A synchronous semiconductor memory device having an on-die termination (ODT) circuit, and an ODT method, satisfy ODT DC and AC parameter specifications and perform an adaptive impedance matching through an external or internal control, by executing an ODT operation synchronized to an external clock. The synchronous semiconductor memory device having a data output circuit for performing a data output operation synchronously to the external clock includes the ODT circuit for generating ODT up and down signals having the same timing as data output up and down signals for the data output operation, to perform the ODT operation.

摘要翻译： 具有片上终端（ODT）电路和ODT方法的同步半导体存储器件通过执行与外部同步的ODT操作，满足ODT DC和AC参数规格并通过外部或内部控制执行自适应阻抗匹配 时钟。 具有用于与外部时钟同步地进行数据输出操作的数据输出电路的同步半导体存储器件包括ODT电路，用于产生具有与用于数据输出操作的数据输出上下信号相同的定时的ODT上下信号， 执行ODT操作。

公开(公告)号：US20050078573A1

公开(公告)日：2005-04-14

申请号：US10894360

申请日：2004-07-20

申请人： Dong-Jin Lee

发明人： Dong-Jin Lee

IPC分类号： G11B7/00 ,  G11B7/095

CPC分类号： G11B7/0953

摘要： A method and apparatus compensating for disc eccentricity includes extracting eccentricity data from a tracking error signal having one period, generated by a tracking servo, detecting parameter values of an eccentricity component extracted during the extraction of the eccentricity data and transforming a reference sine wave based on the detected parameter values of the eccentricity component. The eccentricity data is replaced with the transformed reference sine wave and the replaced eccentricity data is added to the tracking error signal to compensate for the disc eccentricity.

摘要翻译： 补偿盘偏心度的方法和装置包括从跟踪伺服产生的具有一个周期的跟踪误差信号中提取偏心数据，检测在提取偏心数据期间提取的偏心分量的参数值，并基于 检测到偏心分量的参数值。 偏心率数据被变换后的参考正弦波代替，替代的偏心数据被加到跟踪误差信号中，以补偿盘偏心。

公开(公告)号：US20050052978A1

公开(公告)日：2005-03-10

申请号：US10859471

申请日：2004-06-03

申请人： Yong-seock Yoon ,  Byoung-ho Choi ,  Soo-yul Jung ,  Joong-Eon Seo ,  Dong-Jin Lee

发明人： Yong-seock Yoon ,  Byoung-ho Choi ,  Soo-yul Jung ,  Joong-Eon Seo ,  Dong-Jin Lee

IPC分类号： G11B7/004 ,  G11B7/085 ,  G11B19/12 ,  G11B7/00 ,  G11B5/58

CPC分类号： G11B19/12

摘要： A method of discriminating an optical disc type and an apparatus thereof. The method for an optical disc system of recording and/or reproducing an optical disc that includes an optical pickup having a laser diode, an object lens, and a light receiving device, checks a track error signal while moving the object lens to upward/downward, and discriminates an optical disc type by using the magnitude of the checked track error signal. The method and apparatus discriminate the disc type in the initial stage of focusing where the object lens moves to upward/downward.

摘要翻译： 鉴别光盘类型的方法及其装置。 用于记录和/或再现光盘的光盘系统的方法包括具有激光二极管，物镜和光接收装置的光学拾取器，在将物镜向上/向下移动的同时检查轨道误差信号 并且通过使用所检查的轨道误差信号的幅度来鉴别光盘类型。 该方法和装置在物镜向上/向下移动的聚焦的初始阶段中区分光盘类型。

公开(公告)号：US5568625A

公开(公告)日：1996-10-22

申请号：US331740

申请日：1994-10-31

申请人： Dong-Jin Lee

发明人： Dong-Jin Lee

IPC分类号： G11B27/10 ,  G11B20/12 ,  G11B27/30 ,  G11B27/34 ,  G11B7/00

CPC分类号： G11B27/34 ,  G11B27/3036 ,  G11B2220/2529

摘要： A method for converting position data of a mini disc into corresponding regenerating time data of a cluster and a sector in the mini disc system. The method having a first step of converting time by using a time table based on the cluster word and a second step of converting time by using a time table based on the sector byte. The first step further includes the steps of dividing the cluster word into the upper and lower bytes, respectively, creating a first time table corresponding to the upper byte of the cluster and a second time table corresponding to the lower byte of the cluster, and obtaining converted time corresponding to the upper and lower bytes of the cluster in the first and second time tables. The converted time, which is represented in predetermined time units, is generated by adding the converted time for each of the upper and lower bytes of the cluster, and the converted time for the sector byte.

摘要翻译： 一种用于将小型盘的位置数据转换成小型盘系统中的群集和扇区的对应的再生时间数据的方法。 该方法具有通过使用基于群集字的时间表来转换时间的第一步骤和通过使用基于扇区字节的时间表来转换时间的第二步骤。 第一步还包括分别将集群字划分为上下字节的步骤，创建与集群的高字节对应的第一时间表和对应于集群的低字节的第二时间表，并获得 转换时间对应于第一和第二时间表中的集群的上下字节。 以预定时间单位表示的转换时间是通过将针对簇的上，下字节的每一个的转换时间和扇区字节的转换时间相加来生成的。