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    • 23. 发明公开
    • 디지털 방송 수신 장치 및 수신 방법
    • 数字广播接收设备和接收方法
    • KR1020060054288A
    • 2006-05-22
    • KR1020067000341
    • 2004-07-09
    • 소니 주식회사
    • 나까무라,나오히또
    • H04N7/015H04L27/22
    • H04L1/206H04L27/22H04N5/4401H04N21/4382
    • An antenna is used to automatically determine a factor of degradation of reception characteristic, and the reception characteristic is automatically improved. In a digital broadcast receiving apparatus (100), during reception, a received signal supplied from an antenna (1) is subjected to an orthogonal detection onto a base band signal, and the average value of radial amplitudes of phase mapping signal points of this base band signal is determined to calculate a C/N value. The average value of circumferential amplitudes of the phase mapping signal points of the base band signal is also determined to calculate the phase noise amount of the received signal, and further, the bit error rate of a transport stream obtained by demodulating the base band signal is determined. The factor of the degradation of reception characteristic is determined based on the results of those calculations and determinations. A predetermined countermeasure mode is set based on a result of the factor determination.
    • 天线用于自动确定接收特性的劣化因素,并且自动提高接收特性。 在数字广播接收装置(100)中,在接收期间,从天线(1)提供的接收信号对基带信号进行正交检测,并且该基带的相位映射信号点的径向幅度的平均值 确定频带信号以计算C / N值。 还确定基带信号的相位映射信号点的周向振幅的平均值,以计算接收信号的相位噪声量,此外,通过解调基带信号获得的传输流的误码率为 决心。 基于这些计算和确定的结果确定接收特性的劣化的因素。 基于因子确定的结果来设定预定的对策模式。
    • 27. 发明公开
    • 통신 시스템의 가변 채널에러 발생장치
    • 通信系统的变通道错误发生器
    • KR1020000002158A
    • 2000-01-15
    • KR1019980022761
    • 1998-06-17
    • 에스케이하이닉스 주식회사
    • 김종원
    • H04B7/005
    • H04L1/0082H04L1/206
    • PURPOSE: A variable channel error generator of a communication system is provided to enhance the reliability when verifying an error by making a channel error environment similar to a real channel environment when a communication system is presented. CONSTITUTION: A variable channel error generator comprises: a beat error rate variation part(10) to vary the error rate by inputting a beat error rate parameter; a PN sequence generation part(20) to generate a random sequence; and a comparison part(30) to compare the PN sequence with the beat error rate and to control the output of an input data according to the compared result.
    • 目的:提供通信系统的可变通道错误发生器,以在通信系统呈现时,通过使与通道环境类似的通道错误环境来验证错误,提高可靠性。 构成:可变通道误差发生器包括:通过输入拍频误差参数来改变误差率的拍子差错率变化部分(10); PN序列生成部分(20),用于生成随机序列; 以及比较部分(30),用于将PN序列与拍频误差率进行比较,并根据比较结果控制输入数据的输出。
    • 30. 发明公开
    • 통신 에러 검출 장치 및 이를 구비하는 통신 시스템
    • 用于检测通信错误的设备和具有该通信错误的通信系统
    • KR1020150007691A
    • 2015-01-21
    • KR1020130082005
    • 2013-07-12
    • 에스케이하이닉스 주식회사금오공과대학교 산학협력단
    • 장영찬이광훈이한열이현배
    • H04L1/00
    • H04L1/203H04L1/206
    • The present invention aims to provide an apparatus for detecting a communications error which is provided in a receiver and performs a stable operation, and a communications system having the same. The present invention provides the apparatus for detecting the communications error, comprising: a control logic unit provided in a receiver receiving a transmission signal including specific pattern data transmitted from a transmitter to process the received transmission signal, and outputting a control clock signal; a reference data generation unit receiving the control clock signal and outputting reference data; and an error detection unit receiving the pattern data and the reference data, primarily performing an initial data setting operation that initially matches the sequence of the pattern data and the sequence of the reference data, and detecting an error of the transmission signal.
    • 本发明旨在提供一种用于检测在接收机中提供的通信错误并执行稳定操作的装置,以及具有该通信错误的通信系统。 本发明提供了一种用于检测通信错误的装置,包括:控制逻辑单元,设置在接收机中,接收从发射机发送的特定模式数据的传输信号,处理接收到的传输信号,并输出控制时钟信号; 参考数据生成单元,接收控制时钟信号并输出​​参考数据; 以及错误检测单元,接收图形数据和参考数据,主要执行初始数据设置操作,该初始数据设置操作最初与模式数据的序列和参考数据的顺序相匹配,并且检测发送信号的错误。