-
公开(公告)号：KR1020050023232A
公开(公告)日：2005-03-09
申请号：KR1020047012172
申请日：2003-04-25
Applicant: 한국전자통신연구원
IPC: G02F1/133
CPC classification number: G09G3/3406 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/066 , G09G2330/021
Abstract: PURPOSE: An apparatus and a method for controlling an LCD(Liquid Crystal Display) backlight and processing image signal are provided to make it possible to reduce the power consumption of an end user terminal having an LCD panel without lowering of brightness and contrast of image, by adapting brightness and contrast of the image signal based on the adjusted backlight intensity information. CONSTITUTION: An apparatus for controlling an LCD backlight and processing image signal comprises the first unit for generating backlight intensity information and the second unit(100) for controlling brightness and contrast of an image signal. The first unit generates backlight intensity information, adjusted for reducing the power consumption of an end user terminal having an LCD panel. The second unit adapts brightness and contrast of the image signal based on the adjusted backlight intensity information and displays the adapted image signal on the LCD. The apparatus makes a user experience image display with undamaged quality by adapting brightness or contrast of the image signal into high-level based on the adjusted backlight intensity information, and simultaneously, reduces the power consumption of the end user terminal.
Abstract translation: 目的：提供一种用于控制LCD（液晶显示器）背光和处理图像信号的装置和方法，以使得可以降低具有LCD面板的终端用户终端的功耗而不降低图像的亮度和对比度， 通过基于所调整的背光强度信息调整图像信号的亮度和对比度。 构成：用于控制LCD背光和处理图像信号的装置包括用于产生背光强度信息的第一单元和用于控制图像信号的亮度和对比度的第二单元（100）。 第一单元产生用于降低具有LCD面板的终端用户终端的功耗的背光亮度信息。 第二单元基于调整后的背光强度信息来适应图像信号的亮度和对比度，并在LCD上显示适合的图像信号。 该装置通过基于调整后的背光强度信息将图像信号的亮度或对比度适应为高电平，使得用户体验未损坏的图像显示，同时降低终端用户终端的功耗。
-
公开(公告)号：KR100399057B1
公开(公告)日：2003-09-26
申请号：KR1020010047560
申请日：2001-08-07
Applicant: 한국전자통신연구원
IPC: H04B1/00
Abstract: PURPOSE: A voice activity detection apparatus and a method thereof in a mobile communication system are provided to distinguish a voice section from a background noise section efficiently while taking over the telephone existing the background noise by using peak measurement(PM) of a residual signal of an LPC(Linear Prediction Coefficient). CONSTITUTION: An LPC analyzer(101) receives and analyzes an input voice signal applied, and then extracts an LPC. An LPC mixer(102) reproduces the voice signal from the LPC. An adder(103) adds up the input voice signal and deducts the signal received from the LPC mixer(102) to produce an LPC residual signal. A PM calculating device(104) performs a PM by using the LPC residual signal. A first flag determining device(105) determines a flag by using the value of PM received from the PM calculating device(104). An analysis and flag determining unit analyzes frame energy and characteristic and distribution of frequency and then determines a flag. A VAD(Voice Activity Detection) device(112) determines a VAD by using a flag received from the analysis and flag determining unit.
Abstract translation: 目的：提供一种在移动通信系统中的话音活动检测装置及其方法，以便通过使用残余信号的峰值测量（PM）来接管存在背景噪声的电话，从而有效地区分话音区段和背景噪声区段， 一个LPC（线性预测系数）。 构成：LPC分析器（101）接收并分析所施加的输入语音信号，然后提取LPC。 LPC混频器（102）再现来自LPC的语音信号。 加法器（103）将输入语音信号相加并且推导从LPC混频器（102）接收的信号以产生LPC残余信号。 PM计算装置（104）通过使用LPC剩余信号来执行PM。 第一标志确定装置（105）通过使用从PM计算装置（104）接收的PM的值来确定标志。 分析和标志确定单元分析帧能量和频率的特性和分布，然后确定标志。 VAD（语音活动检测）装置（112）通过使用从分析和标志确定单元接收到的标志来确定VAD。
-
公开(公告)号：KR1020020022256A
公开(公告)日：2002-03-27
申请号：KR1020000054959
申请日：2000-09-19
Applicant: 한국전자통신연구원
IPC: G10L19/02
CPC classification number: G10L19/02
Abstract: PURPOSE: A system and a method for coding speech using time division coding algorithm are provided to code speech by detecting the transition time of a transition section and dividing the section in order to obtain improved speech quality of the transition section. CONSTITUTION: A time division speech coder for coding a voiced/voiceless sound transition signal through harmonic speech coding includes an excitation signal transition section analyzer(10). The excitation signal transition section analyzer has a transition time detector, a harmonic excitation signal analyzer, and a harmonic excitation signal adder. The transition time detector detects transition time for grasping the transition section of the transition signal. The harmonic excitation signal analyzer extracts a harmonic model parameter of the detected transition section. The excitation signal transition section adder adds the harmonic model parameter.
Abstract translation: 目的：提供一种使用时分编码算法对语音进行编码的系统和方法，通过检测转换部分的转换时间并对该部分进行划分，以获得改进的转换部分的语音质量来编码语音。 构成：用于通过谐波语音编码对浊音/无声声音转换信号进行编码的时分语音编码器包括激励信号转换部分析器（10）。 励磁信号过渡段分析仪具有过渡时间检测器，谐波激励信号分析仪和谐波激励信号加法器。 转移时间检测器检测用于掌握转换信号的转换部分的转换时间。 谐波激励信号分析仪提取检测到的过渡段的谐波模型参数。 激励信号转换部分加法器加上谐波模型参数。
-
公开(公告)号：KR101259576B1
公开(公告)日：2013-04-30
申请号：KR1020090057193
申请日：2009-06-25
Applicant: 한국전자통신연구원 , 창원대학교 산학협력단
Abstract: 본 발명은 서로 다른 주파수 대역의 RF 신호를 동시에 수신하여 처리 가능하며, 이때, RF 신호들에 의해 발생하는 에얼리어싱을 최소화하는 BPS 수신장치를 개시한다. 이를 위해 본 발명은 서로 다른 주파수 대역의 제1 RF신호와 제2 RF신호가 합쳐진 신호에 대해 시간차를 두고 샘플링하는 샘플링 처리부, 상기 샘플링 처리부에 의해 제1 RF신호와 제2 RF신호의 합의 신호에서 각각 시간 정보에 따라 샘플링된 신호에서 제1 스트림신호, 및 제2 스트림신호를 생성하는 양자화 처리부, 및 제1 스트림신호와 제2 스트림신호가 갖는 주파수 대역의 위상차를 참조하여 인터폴레이션을 수행함으로써 제1 RF신호와 제2 RF신호를 분리하는 신호처리부를 포함한다.
인터폴런트, 에얼리어싱, BPS, SDR-
公开(公告)号：KR101159887B1
公开(公告)日：2012-06-26
申请号：KR1020080130893
申请日：2008-12-22
Applicant: 한국전자통신연구원 , 창원대학교 산학협력단
IPC: H04B1/10
CPC classification number: H03M1/12 , H04L27/142 , H04L27/3881 , H04L2027/0026 , H04L2027/0051
Abstract: 본 발명의 일 실시예에 따른 디지털 직접 변환 수신 장치는 RF 신호를 복수의 샘플 신호들로 하향 변환하되, 상기 하향 변환 시 상기 샘플 신호들 간에 일정한 위상차를 발생시키는 위상 변환부; 및 상기 발생된 위상차를 이용하여, 상기 샘플 신호들로부터 이미지 성분을 제거하는 가변 복소 게인부를 포함한다.
DRF, 디지털 직접변환, 대역통과 샘플링, 인터폴란트(interpolant), 고정 딜레이(constant delay), 가변 복소 이득(variable complex gain)-
Patent Agency Ranking
公开(公告)号：KR101130882B1
公开(公告)日：2012-03-28
申请号：KR1020100102034
申请日：2010-10-19
Applicant: 군산대학교산학협력단 , 한국전자통신연구원
CPC classification number: H04B1/0475 , H03F3/245 , H04B2001/0416
Abstract: PURPOSE: A polar transmitter with a time delay compensation function and an operating method thereof, and a mobile terminal with the same are provided to prevent a time delay when signals are transmitted/received. CONSTITUTION: A baseband signal processing unit(210) outputs a pulse modulation signal for detecting a time delay. An amplitude modulating unit(220) generates an amplitude modulating signal by the pulse modulation signal. A phase modulating unit(230) generates a phase modulating signal by the pulse modulation signal. A time delay compensating unit(250) differentially amplifies the difference between an output of the amplitude modulating unit and an output of the phase modulating unit.
Abstract translation: 目的：提供具有时间延迟补偿功能的极性发射机及其操作方法，以及具有该极地发射机的移动终端，以防止当发送/接收信号时的时间延迟。 构成：基带信号处理单元（210）输出用于检测时间延迟的脉冲调制信号。 振幅调制单元（220）通过脉冲调制信号产生振幅调制信号。 相位调制单元（230）通过脉冲调制信号产生相位调制信号。 时间延迟补偿单元（250）差分放大幅度调制单元的输出与相位调制单元的输出之间的差。
-
公开(公告)号：KR1020100088261A
公开(公告)日：2010-08-09
申请号：KR1020090007365
申请日：2009-01-30
Applicant: 고려대학교 산학협력단 , 한국전자통신연구원
CPC classification number: G06F21/36 , H04L9/3226
Abstract: PURPOSE: An authentication system utilizing multi-dimensional patterns of password data through an input device are provided to enhance the stability and accuracy thereof through the comparison between a feature vector and a reference feature vector by extracting an input feature vector from an input behavior pattern of a user. CONSTITUTION: A specific vector generator(110) extracts a feature vector from an inputted pattern of a password. If the inputted password of the feature vector generating unit and reference password of a storage unit(120) are matched, a password comparison unit(130) transmits the feature vector. If the input feature vector and the reference specific vector of the storage unit are matched, a specific vector comparison unit(140) transfers authentication success to a control device(30).
Abstract translation: 目的：提供一种通过输入装置利用密码数据的多维模式的认证系统，通过从特征向量和参考特征向量之间的比较，通过从输入特征向量的输入行为模式中提取输入特征向量来提高其稳定性和准确度 一个用户 构成：特定向量生成器（110）从输入的密码模式中提取特征向量。 如果特征向量生成单元的输入密码和存储单元（120）的参考密码匹配，则密码比较单元（130）发送特征向量。 如果存储单元的输入特征向量和参考特定向量匹配，则特定向量比较单元（140）将认证成功传送到控制设备（30）。
-
公开(公告)号：KR1020100071546A
公开(公告)日：2010-06-29
申请号：KR1020080130310
申请日：2008-12-19
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A phase modulator and a phase modulating method are provided to minimize the performance change of a voltage-controlling oscillator by regulating the frequency of reference modulating signal in which phase modulated signal and channel modulated signal are combined. CONSTITUTION: A first phase-locked loop(PLL) block(410) generates phase modulated signal. A voltage controlling oscillator regulates a frequency based on the phase modulated signal. A second PLL block(450) generates channel modulated signal based on channel information which is determined by reflecting the regulated frequency. The voltage controlling oscillator regulates the frequency of reference modulated signal in which the phase modulated signal and the channel modulated signal are combined. A first frequency divider(440) is fed-back the reference modulated signal from the voltage-controlling oscillator.
Abstract translation: 目的：提供相位调制器和相位调制方法，通过调节相位调制信号和信道调制信号组合的参考调制信号的频率来最小化电压控制振荡器的性能变化。 构成：第一锁相环（PLL）块（410）产生相位调制信号。 电压控制振荡器基于相位调制信号来调节频率。 第二PLL块（450）基于通过反映调节频率确定的信道信息来生成信道调制信号。 电压控制振荡器调节参考调制信号的频率，其中相位调制信号和信道调制信号被组合。 第一分频器（440）从电压控制振荡器反馈参考调制信号。
-
69.发明公开ＲＦ 신호 수신을 위한 가변 딜레이와 단일 ｉｎｔｅｒｐｏｌａｎｔ 방식의 디지털 직접변환 수신기 및그 제공 방법 有权基于可变延迟的带通采样接收器和用于接收无线电频率信号的恒定插值器及其方法
公开(公告)号：KR1020100071545A
公开(公告)日：2010-06-29
申请号：KR1020080130309
申请日：2008-12-19
Applicant: 한국전자통신연구원 , 창원대학교 산학협력단
CPC classification number: H04B1/0003 , H04B1/30
Abstract: PURPOSE: A variable delay and a providing method thereof are provided to execute a universal access through reconfiguration of a signal processing algorithm. CONSTITUTION: A Track & Holder(320) samples the RF signal which is selected in a tunable RF filter to a selected sampling frequency. The Track & Holder generates a uniform phase difference between sample streams by using a clock signal which has a time interval during down-conversion. An analog to digital converter(340) generates a sample stream which has phase difference information in the sampling signal which is down-converted. A complex interpolant(350) eliminates the image component from the sample stream by using the phase difference between a plurality of sample streams.
Abstract translation: 目的：提供可变延迟及其提供方法，以通过重新配置信号处理算法执行通用访问。 构成：轨道和持有人（320）将在可调谐RF滤波器中选择的RF信号采样到所选择的采样频率。 轨道和持有者通过使用在下变换期间具有时间间隔的时钟信号在采样流之间产生均匀的相位差。 模数转换器（340）产生在下变频的采样信号中具有相位差信息的采样流。 复杂内插器（350）通过使用多个样本流之间的相位差来消除来自样本流的图像分量。
-
公开(公告)号：KR1020100071544A
公开(公告)日：2010-06-29
申请号：KR1020080130308
申请日：2008-12-19
Applicant: 한국전자통신연구원
IPC: H04L27/20
Abstract: PURPOSE: A phase modulator and a phase modulating method for compensating the performance change of the modulator are provided to correct the phase modulated value by controlling the phase information of a second phase modulated signal, based on the comparison result of first phase modulated signal and reference phase modulated signal. CONSTITUTION: A voltage-controlling oscillator(610) generates phase modulated signal. A mixer(620) is fed back a first phase modulated signal through the voltage-controlling oscillator. A baseband signal processor compares the first phase modulated signal with reference phase modulated signal. The baseband signal processor(650) controls the phase information of second phase modulated signal, which is generated from the voltage-controlling oscillator. A low-band pass filter low-passes the first phase modulated signal outputted from a mixer.
Abstract translation: 目的：提供一种用于补偿调制器的性能变化的相位调制器和相位调制方法，用于通过基于第一相位调制信号和参考的比较结果控制第二相位调制信号的相位信息来校正相位调制值 相位调制信号。 构成：电压控制振荡器（610）产生相位调制信号。 混频器（620）通过电压控制振荡器反馈第一相位调制信号。 基带信号处理器将第一相位调制信号与参考相位调制信号进行比较。 基带信号处理器（650）控制从压控振荡器产生的第二相位调制信号的相位信息。 低通滤波器低通过从混频器输出的第一相位调制信号。
-
-
-
-
-
-
-
-
-
Search Results
77
records
(took 0.026 seconds)
