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    • 41. 发明公开
    • 무선 통신 시스템에서 신호 수신 방법 및 장치
    • 在无线通信系统中接收信号的方法和装置
    • KR1020100056033A
    • 2010-05-27
    • KR1020080114991
    • 2008-11-19
    • 삼성전자주식회사
    • 정영석김성수배상민임종한
    • H04L27/14H04L1/00
    • H04L1/0047H04L25/0224H04L27/14
    • PURPOSE: In the signal receiving method in the wireless telecommunications system and apparatus thereof is the channel environment with high signal-noise ratio, the traffic signal and pilot signal are the message received. The traffic signal and channel estimation signal can be readily processed in the signal receiving apparatus. CONSTITUTION: A channel estimator(220) presumes channel through the received pilot signal. A plurality of channel estimation signals comprising channel is decided. The power amplifying unit(225) amplifies the electricity of the channel estimation signal pitching with the received traffic signal. The power rate is recompensed. The demodulator [demodulator] demodulates the amplified traffic signal. The electricity decompression module(235) is restored to the former state the electricity of the demodulated traffic signal.
    • 目的:无线电信系统中的信号接收方法及其装置是具有高信噪比的信道环境,业务信号和导频信号是接收的消息。 可以在信号接收装置中容易地处理交通信号和信道估计信号。 构成:信道估计器(220)假设通过接收的导频信号的信道。 确定包括信道的多个信道估计信号。 功率放大单元(225)利用所接收的话务信号放大信道估计信号俯仰的电力。 电力费率被补偿。 解调器[解调器]解调放大的业务信号。 电力减压模块(235)将被解调的交通信号的电力恢复到前一状态。
    • 42. 发明公开
    • 더블링 샘플링에 근거한 베이스밴드 처리 방법
    • 基于双重采样的基带处理方法
    • KR1020070102721A
    • 2007-10-19
    • KR1020077019636
    • 2005-01-31
    • 지티이 코포레이션
    • 쩡짜오후아장하이리핑친홍펭
    • H04L27/14H04B7/26
    • H04B1/7105H04L25/0202H04L27/14
    • A baseband process method based on doubling sampling is disclosed. The method includes the following steps: subjecting the received signal to the root raised cosine-filtering process; sampling said signal; conducting channel estimation for every user based on the sampled data; conducting multi-user joint detect demodulation for said data. According to the method, the step of sampling said signal includes the following steps: conducting doubling sampling for said signal, the sampling interval is 1/2 chip; selecting the average value of the two sample value as sample value of the chip; grouping the sample value of every chip as data stream. According to the invention, in the case that the computing complexity is not increased and the memory space is only doubled, the gain of the received signal in the system is improved, especially when the signal synchronization is poor. The system delay is reduced. The quality of real time is increased. And the method is suitable to the mobile communication system in bad communication environment.
    • 公开了一种基于加倍采样的基带处理方法。 该方法包括以下步骤:对接收到的信号进行根升余弦滤波处理; 采样所述信号; 基于采样数据对每个用户进行信道估计; 对所述数据进行多用户联合检测解调。 根据该方法,对所述信号进行采样的步骤包括以下步骤:对所述信号进行加倍采样,采样间隔为1/2码片; 选择两个采样值的平均值作为芯片的采样值; 将每个芯片的采样值分组为数据流。 根据本发明,在计算复杂度不增加并且存储器空间仅加倍的情况下,系统中的接收信号的增益得到改善,特别是当信号同步较差时。 系统延迟减少。 实时质量提高。 该方法适用于不良通信环境下的移动通信系统。
    • 43. 发明公开
    • APPARATUS FOR DEMODULATING BROADCASTING SIGNAL
    • 用于解散广播信号的装置
    • KR20070094315A
    • 2007-09-20
    • KR20060024854
    • 2006-03-17
    • LG ELECTRONICS INC
    • KIM TAE HO
    • H04N5/455
    • H04L27/14G06F17/14H04L25/0202H04L25/03159
    • An apparatus for demodulating a broadcasting signal is provided to process received signals efficiently with a simple hardware configuration. An apparatus for demodulating a broadcasting signal includes a signal transformer(230), a filter(270), and an equalizer(300). The signal transformer transforms a channel-estimated frequency domain signal into a time domain signal or transforms a noise-removed time domain signal into a frequency domain signal. The filter removes noise from the time domain signal output from the signal transformer. The equalizer performs channel estimation of a received signal using the frequency domain signal output from the signal transformer.
    • 提供用于解调广播信号的装置,以用简单的硬件配置有效地处理接收到的信号。 用于解调广播信号的装置包括信号变压器(230),滤波器(270)和均衡器(300)。 信号变换器将信道估计的频域信号变换为时域信号,或将噪声消除的时域信号变换为频域信号。 该滤波器从信号变压器输出的时域信号中消除噪声。 均衡器使用从信号变换器输出的频域信号来执行接收信号的信道估计。
    • 44. 发明公开
    • BROADCASTING RECEIVER AND PROCESSING METHOD
    • 广播接收器和处理方法
    • KR20070090666A
    • 2007-09-06
    • KR20060020634
    • 2006-03-03
    • LG ELECTRONICS INC
    • KO WOO SUKJUN JUNG SIG
    • H04N7/015H04N7/08
    • H04H20/57H04H2201/11H04H2201/16H04L5/0007H04L27/14H04N5/46H04N5/50H04N5/63
    • A broadcasting receiver and a processing method thereof are provided to receive and supply two or more multi services, thereby applying a PIP(Picture In Picture) function or W&R(Watch&Record) functions such as a time machine to a video service without any constraints and expanding the other various multimedia functions. In a receiver, N ensemble processors(210,220) and N service processors(230,240) are installed in parallel. The ensemble processor performs digitalization and synchronization recovery by tuning a frequency corresponding to one ensemble according to a control signal and outputs the performance result in a symbol form. The service processor performs demodulation and differential decoding only for symbols necessary to restore a service selected by a user among output symbols of the ensemble processor. A service selecting/channel distributing unit(250) separates data information including only control information of each ensemble and selected services received from a signal outputted from the N service processors of the receiver, and outputs a control signal so as to process only the selected service within each ensemble received in the receiver. Decoders(233,243) extract information about each ensemble and service by decoding the control information separated in the service selecting/channel distributing unit, and simultaneously output at least plural services selected by the user after decoding the data information.
    • 提供广播接收机及其处理方法以接收和提供两个或更多个多业务,由此将视频业务的PIP(画中画)功能或W&R(Watch&Record)功能(例如时间机器)应用于视频业务而没有任何限制和扩展 其他各种多媒体功能。 在接收机中,N个合并处理器(210,220)和N个服务处理器(230,240)并行安装。 整体处理器通过根据控制信号调谐对应于一个集合的频率来执行数字化和同步恢复,并以符号形式输出性能结果。 服务处理器仅执行用于恢复由组合处理器的输出符号之中的用户选择的服务所必需的符号的解调和差分解码。 服务选择/信道分配单元(250)分离仅包含每个集合的控制信息的数据信息和从接收机的N个服务处理器输出的信号中接收的所选择的服务,并且输出控制信号,以仅处理所选择的服务 在接收器中接收的每个集合内。 解码器(233,243)通过解码在服务选择/频道分配单元中分离的控制信息来提取关于每个集合和服务的信息,并且在解码数据信息之后同时输出由用户选择的至少多个服务。
    • 48. 发明授权
    • 방송신호수신장치
    • KR100445319B1
    • 2004-11-12
    • KR1019970004145
    • 1997-02-12
    • 소니 주식회사
    • 도미야마히또시
    • H04B1/26H04B1/40H04B17/40
    • H04B1/0057H03D3/04H03D5/00H03J1/0083H04B1/006H04B1/0092H04B1/26H04B1/406H04L27/06H04L27/14H04L27/156
    • A pulse counting FM demodulator includes a differentiating circuit that differentiates an FM intermediate-frequency signal to produce a differentiated pulse signal. A trigger signal is generated based on the differentiated pulse signal and is used to control the charging and discharging of a capacitor that is included in a monostable multivibrator. The charging and discharging of the capacitor provides an output level inverting operation. A variable current source supplies the capacitor with a charging current that is varied in response to an externally supplied control voltage, and an output circuit provides a demodulated output signal having a level corresponding to the output level inverting operation in the monostable multivibrator.
    • 脉冲计数FM解调器包括微分电路,微分电路对FM中频信号进行微分以产生微分脉冲信号。 基于微分脉冲信号产生触发信号,并用于控制单稳态多谐振荡器中包含的电容器的充电和放电。 电容器的充电和放电提供了输出电平反相操作。 可变电流源向电容器提供响应于外部提供的控制电压而改变的充电电流,并且输出电路提供具有与单稳态多谐振荡器中的输出电平反相操作相对应的电平的解调输出信号。
    • 49. 发明公开
    • 신호주파수분할기 및 이를 이용한 주파수편위키 복호화장치
    • 信号频率分离器和频率移位键解码装置
    • KR1020040019826A
    • 2004-03-06
    • KR1020020074427
    • 2002-11-27
    • 노바텍 마이크로일렉트로닉스 코포레이션
    • 첸,융-렁
    • H04L27/14
    • H04L27/14H03D7/165
    • PURPOSE: A signal frequency splitter and a frequency shift key decoding apparatus using the same are provided to randomly change the frequency of a local carrier signal and to reduce manufacturing costs. CONSTITUTION: A multi-function wireless receiver(120) includes an antenna(122), a microprocessor(136), an interface(138), an oscillation crystal(134), a vibration initiator, and a frequency shift key decoding apparatus(110). The frequency shift key decoding apparatus(110) includes a frequency divider(140), a low-noise amplifier(124), a signal frequency splitter(100) and a demodulator(132). The signal frequency splitter(100) further comprises a frequency synthesizer(150), n-1 first mixers(M12 to M1n), n second mixers(M21,M22 to M2n) and n filters(128), where n is a positive integer larger the 2.
    • 目的:提供信号分频器和使用其的频移键解码装置,以随机地改变本地载波信号的频率并降低制造成本。 构成:多功能无线接收器(120)包括天线(122),微处理器(136),接口(138),振荡晶体(134),振动发起器和频移键解码装置(110 )。 频移键解码装置(110)包括分频器(140),低噪声放大器(124),信号分频器(100)和解调器(132)。 信号分离器(100)还包括频率合成器(150),n-1个第一混频器(M12至M1n),n个第二混频器(M21,M22至M2n)和n个滤波器(128),其中n为正整数 较大的2。
    • 50. 发明公开
    • 전력선통신용 주파수편이변조형 수신기의 동기장치
    • 用于电力线通信(PLC)的频率转换键控调制类型接收器的同步装置
    • KR1020020064512A
    • 2002-08-09
    • KR1020010005037
    • 2001-02-02
    • 주식회사 젤라인
    • 김진태김지현
    • H04L27/10
    • H04L27/14
    • PURPOSE: A synchronization device of a frequency shift keying(FSK) modulation type receiver for power line communication(PLC) is provided, which performs a symbol synchronization with a simple configuration. CONSTITUTION: According to the synchronization apparatus of a frequency shift keying modulation type receiver of a power line communication system, a plurality of correlators(10-1,...,10-n) separating a received signal according to its frequency. A reference waveform generator(20) generates a reference waveform in a pulse shape whose polarity is changed at every time when a level of each signal from the correlators crosses each other. A zero crossing detector(40) detects a zero crossing in the reference waveform being output from the reference waveform generator, and outputs a lead signal or a lagged signal by comparing the zero crossing with a zero crossing time of the reference waveform. And a sampling timing controller(50) controls a period of a sampling pulse.
    • 目的:提供用于电力线通信(PLC)的频移键控(FSK)调制型接收机的同步装置,其以简单的配置执行符号同步。 构成:根据电力线通信系统的频移键控调制型接收机的同步装置,根据其频率分离接收信号的多个相关器(10-1,...,10-n)。 参考波形发生器(20)产生脉冲形状的参考波形,其中每个相关器的每个信号的电平彼此相交时每次极性改变。 零交叉检测器(40)检测从参考波形发生器输出的参考波形中的过零点,并通过将过零点与参考波形的过零时间进行比较来输出引导信号或滞后信号。 并且采样定时控制器(50)控制采样脉冲的周期。