公开(公告)号：US07826584B2

公开(公告)日：2010-11-02

申请号：US11822216

申请日：2007-07-03

Applicant: Soo-Jin Paek ,  Jae-wook Lee ,  Ho-keun Cho

Inventor： Soo-Jin Paek ,  Jae-wook Lee ,  Ho-keun Cho

IPC: H03D3/24 ,  H03L7/06

CPC classification number: H03D13/004 ,  H03L7/08

Abstract: In phase locked loop, a phase detector detects a phase difference between a first clock signal and a second clock signal and output a first output signal based on the detected difference. A charge pump generates a control voltage in response to the first output signal from the phase detector. A voltage-controlled oscillator generates the second clock signal. A controller controls the control voltage such that the phase difference between the first clock signal and the second clock signal is increased in response to a burn-in test mode signal.

Abstract translation: 在锁相环中，相位检测器检测第一时钟信号和第二时钟信号之间的相位差，并基于检测到的差值输出第一输出信号。 电荷泵响应于来自相位检测器的第一输出信号产生控制电压。 压控振荡器产生第二时钟信号。 控制器控制控制电压，使得响应于老化测试模式信号，第一时钟信号和第二时钟信号之间的相位差增加。

公开(公告)号：US07804755B2

公开(公告)日：2010-09-28

申请号：US10979815

申请日：2004-11-03

Applicant: Hyun-soo Park ,  Jae-wook Lee ,  Jae-seong Shim ,  Jung-hyun Lee ,  Eing-seob Cho ,  Eun-jin Ryu

Inventor： Hyun-soo Park ,  Jae-wook Lee ,  Jae-seong Shim ,  Jung-hyun Lee ,  Eing-seob Cho ,  Eun-jin Ryu

IPC: G11B7/00

CPC classification number: G11B20/10009 ,  G11B2020/10555

Abstract: A method of determining characteristics of a signal and an apparatus using the method. The apparatus for determining characteristics of a signal includes: a level detector receiving sample values of a radio frequency (RF) signal and binary data obtained by binarizing the RF signal, generating selection signals based on the binary data, classifying each of the sample values of the RF signal into one of a plurality of levels using the selection signals, and outputting average values of sample values of each level; and a signal characteristics determiner determining a characteristics value that indicates the characteristics of the RF signal using the average values of the sample values belonging to each level.

Abstract translation: 一种确定信号特性的方法和使用该方法的装置。 用于确定信号特性的装置包括：电平检测器，其接收射频（RF）信号的采样值和通过二值化RF信号获得的二进制数据，基于二进制数据产生选择信号，将每个样本值 使用所述选择信号将所述RF信号变换成多个电平之一，并输出各电平的采样值的平均值; 以及信号特性确定器，其使用属于每个级别的样本值的平均值来确定指示RF信号的特性的特性值。

公开(公告)号：US07801005B2

公开(公告)日：2010-09-21

申请号：US10931254

申请日：2004-09-01

Applicant: Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

Inventor： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

IPC: G11B7/00

CPC classification number: G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

Abstract: An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.

Abstract translation: 提供了一种基于维特比解码器的电平信息来测量光盘上的信号质量的装置和方法。 信号质量测量装置包括：二进制单元，其从输入的RF信号产生二进制信号; 接收从二进制单元输出的输入RF信号和二进制信号并输出​​对应于二进制信号的参考电平值的信道标识符; 以及信息计算器，其接收参考电平值并检测信号质量值。

公开(公告)号：US20050128916A1

公开(公告)日：2005-06-16

申请号：US10985014

申请日：2004-11-10

Applicant: Hyun-soo Park ,  Jae-wook Lee ,  Jae-seong Shim ,  Jung-hyun Lee ,  Eing-seob Cho ,  Eun-jin Ryu

Inventor： Hyun-soo Park ,  Jae-wook Lee ,  Jae-seong Shim ,  Jung-hyun Lee ,  Eing-seob Cho ,  Eun-jin Ryu

IPC: G11B5/09 ,  G11B7/09 ,  G11B7/095 ,  G11B19/04 ,  G11B20/10 ,  H04B17/00

CPC classification number: G11B19/04 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0941 ,  G11B7/0945 ,  G11B7/0956 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10296

Abstract: A recording and/or reproducing apparatus and method with signal quality determining device and a method thereof, with the signal quality determining device including a signal estimator determining a level corresponding to a sample value of the RF signal using binary data obtained from the RF signal and generating a selection signal corresponding to the determined level, a channel identifier classifying the sample value into a plurality of levels according to the selection signal and obtaining an average value of the sample values classified into each level, and a quality calculator outputting a signal quality value representing quality of the RF signal using each sample value output from the channel identifier and the average value of the sample values classified into each level. Accordingly, quality of an RF signal can be determined more exactly, and focus compensation, tilt compensation, detrack compensation, and recording signal optimization can be performed using the determined signal quality.

Abstract translation: 一种具有信号质量确定装置的记录和/或再现装置和方法及其方法，其中信号质量确定装置包括使用从RF信号获得的二进制数据确定与RF信号的样本值相对应的电平的信号估计器，以及 产生与所确定的电平相对应的选择信号，根据选择信号将采样值分类为多个电平的信道标识符，并获得分类为每个电平的采样值的平均值;以及质量计算器，输出信号质量值 使用从信道标识符输出的每个样本值和分类到每个级别的样本值的平均值来表示RF信号的质量。 因此，可以更准确地确定RF信号的质量，并且可以使用确定的信号质量来执行聚焦补偿，倾斜补偿，去差补偿和记录信号优化。

公开(公告)号：US08385173B2

公开(公告)日：2013-02-26

申请号：US12823943

申请日：2010-06-25

Applicant: Hyun-soo Park ,  Jae-wook Lee ,  Jae-seong Shim ,  Jung-hyun Lee ,  Eing-seob Cho ,  Eun-jin Ryu

Inventor： Hyun-soo Park ,  Jae-wook Lee ,  Jae-seong Shim ,  Jung-hyun Lee ,  Eing-seob Cho ,  Eun-jin Ryu

IPC: G11B7/00

CPC classification number: G11B20/10009 ,  G11B2020/10555

Abstract: A method of determining characteristics of a signal and an apparatus using the method. The apparatus for determining characteristics of a signal includes: a level detector receiving sample values of a radio frequency (RF) signal and binary data obtained by binarizing the RF signal, generating selection signals based on the binary data, classifying each of the sample values of the RF signal into one of a plurality of levels using the selection signals, and outputting average values of sample values of each level; and a signal characteristics determiner determining a characteristics value that indicates the characteristics of the RF signal using the average values of the sample values belonging to each level.

Abstract translation: 一种确定信号特性的方法和使用该方法的装置。 用于确定信号特性的装置包括：电平检测器，其接收射频（RF）信号的采样值和通过二值化RF信号获得的二进制数据，基于二进制数据产生选择信号，将每个样本值 使用所述选择信号将所述RF信号变换成多个电平之一，并输出各电平的采样值的平均值; 以及信号特性确定器，其使用属于每个级别的样本值的平均值来确定指示RF信号的特性的特性值。

公开(公告)号：US07969218B2

公开(公告)日：2011-06-28

申请号：US11812928

申请日：2007-06-22

Applicant: Jae-wook Lee

Inventor： Jae-wook Lee

IPC: H03K3/00

CPC classification number: H04L25/03878 ,  H03K3/3565

Abstract: Example embodiments are directed to a receiver for reducing ISI of at least one data transmission channel and compensating for signal gain loss, and method thereof. A receiver may include a high pass filter and a Schmitt trigger controlled by a plurality of first control signals and a plurality of second control signals. The plurality of first control signals and the plurality of second control signals may be used to shift a first trigger voltage and a second trigger voltage of the Schmitt trigger. A method of reducing intersymbol interference and compensating for signal gain loss of a receiver connected to at least one data transmission channel is also provided.

Abstract translation: 示例性实施例涉及用于减少至少一个数据传输信道的ISI并补偿信号增益损失的接收机及其方法。 接收机可以包括高通滤波器和由多个第一控制信号和多个第二控制信号控制的施密特触发器。 多个第一控制信号和多个第二控制信号可用于移位施密特触发器的第一触发电压和第二触发电压。 还提供了一种减少符号间干扰并补偿连接到至少一个数据传输信道的接收机的信号增益损失的方法。

公开(公告)号：US20080318114A1

公开(公告)日：2008-12-25

申请号：US12103819

申请日：2008-04-16

Applicant: Jae-wook Lee ,  Keun-yong Lee ,  Chan-hee Park

Inventor： Jae-wook Lee ,  Keun-yong Lee ,  Chan-hee Park

IPC: H01M2/14 ,  H01M2/00 ,  H01M8/10

CPC classification number: H01M8/0206 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0265 ,  H01M2008/1095 ,  Y02P70/56 ,  Y10T29/49108

Abstract: A separator for a fuel cell, including: a plate; a first flow channel having a first depth on a first side of the plate; a first inlet hole coupled to the first flow channel; a first outlet hole coupled to the first flow channel; a second flow channel on a second side of the plate; a second inlet hole coupled to the second flow channel; a second outlet hole coupled to the second flow channel; and a bridge unit having a second depth less than the first depth at a region where a direction of flow of at least one of the first inlet hole or the first outlet hole and a direction of flow of the second flow channel cross.

Abstract translation: 一种用于燃料电池的隔板，包括：板; 第一流动通道，其具有在所述板的第一侧上的第一深度; 耦合到第一流动通道的第一入口孔; 耦合到第一流动通道的第一出口孔; 在所述板的第二侧上的第二流动通道; 耦合到第二流动通道的第二入口孔; 耦合到第二流动通道的第二出口孔; 以及桥单元，其在第一入口孔或第一出口孔中的至少一个流动方向与第二流动通道的流动方向交叉的区域处具有小于第一深度的第二深度。

公开(公告)号：US07394735B2

公开(公告)日：2008-07-01

申请号：US10429954

申请日：2003-05-06

Applicant: Jae-seong Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee

Inventor： Jae-seong Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee

IPC: G11B7/004

CPC classification number: G11B20/10009 ,  G11B20/18

Abstract: An apparatus, a method, and a computer readable recording medium thereof to update filter tap coefficients of an equalizer include a defect signal detection unit and a coefficient updating unit. The defect signal detection unit receives a sampled input signal reflected from an optical disc and/or a track jump signal, detects whether the input signal and/or the track jump signal are defective, and outputs an update stop signal indicative thereof. The coefficient updating unit stops the updating of the filter tap coefficients in response to the update stop signal and outputs current filter tap coefficients.

Abstract translation: 用于更新均衡器的滤波器抽头系数的装置，方法和计算机可读记录介质包括缺陷信号检测单元和系数更新单元。 缺陷信号检测单元接收从光盘反射的采样输入信号和/或轨道跳转信号，检测输入信号和/或轨道跳转信号是否有缺陷，并输出指示其的更新停止信号。 系数更新单元响应于更新停止信号停止更新滤波器抽头系数，并输出当前滤波器抽头系数。

公开(公告)号：US06965659B2

公开(公告)日：2005-11-15

申请号：US09917234

申请日：2001-07-30

Applicant: Jae-wook Lee ,  Dae-yun Shim

Inventor： Jae-wook Lee ,  Dae-yun Shim

IPC: G11B20/16 ,  G11B20/10 ,  G11B20/14 ,  H04L7/033 ,  H04L7/00

CPC classification number: G11B20/10037 ,  G11B20/10527 ,  G11B20/1403 ,  H04L7/0334

Abstract: A device and method for detecting a period of an input signal including a count value setting portion; an A/D converter; a zero cross point detecting portion to detect a symbol change of digital values received from the A/D converter; a arithmetic processing unit; a counter; and a period value calculating portion. The arithmetic processing unit divides two sampling sectors, having a zero cross point in their center, by a preset value which is set in the count value setting portion, predicts a zero cross point sector based on the digital values of two sampling points, and calculates a count value of the reference clock in accordance with the predicted zero cross point sector and the preset value which is set in the count value setting portion.

Abstract translation: 一种用于检测包括计数值设置部分的输入信号的周期的装置和方法; A / D转换器; 零交叉点检测部分，用于检测从A / D转换器接收的数字值的符号变化; 算术处理单元; 柜台 以及周期值计算部。 算术处理单元将在其中心具有零交叉点的两个采样扇区除以设定在计数值设定部分中的预设值，基于两个采样点的数字值预测零交叉点扇区，并计算 根据预测的零交叉点扇区的参考时钟的计数值和在计数值设定部分中设定的预设值。

公开(公告)号：US20100278027A1

公开(公告)日：2010-11-04

申请号：US12833793

申请日：2010-07-09

Applicant: Hyun-soo PARK ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

Inventor： Hyun-soo PARK ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

IPC: H04B17/00 ,  G11B7/00 ,  G11B27/36

CPC classification number: G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

Abstract: An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.

Abstract translation: 提供了一种基于维特比解码器的电平信息来测量光盘上的信号质量的装置和方法。 信号质量测量装置包括：二进制单元，其从输入的RF信号产生二进制信号; 接收从二进制单元输出的输入RF信号和二进制信号并输出​​对应于二进制信号的参考电平值的信道标识符; 以及信息计算器，其接收参考电平值并检测信号质量值。