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    • 4. 发明申请
    • DEVICE AND METHOD FOR RECEIVING DIGITAL SIGNAL TRANSMITTED USING OFDM METHOD
    • 用于接收使用OFDM方法传输的数字信号的装置和方法
    • US20070288832A1
    • 2007-12-13
    • US11554811
    • 2006-10-31
    • Naoto ADACHI
    • Naoto ADACHI
    • H03M13/00
    • H03M13/27H03M13/6325H03M13/6505H04L1/0045H04L1/0071H04L27/2649
    • A receiver that receives a digital signal transmitted on the basis of an orthogonal frequency division multiplexing (OFDM) method. This receiver comprises a demodulation unit for demodulating the digital signal, a demapping unit for demapping demodulated data output from the demodulation unit, a frequency deinterleave unit for executing a frequency deinterleaving process on data output from the demapping unit, a delay unit for delaying control information superposed on the digital signal by a prescribed time period, and a time deinterleave unit for executing, on the basis of the interleave length specified by the control information delayed by the delay unit, a time deinterleaving process on data on which the frequency deinterleaving process has been executed.
    • 一种接收器,其接收基于正交频分复用(OFDM)方法发送的数字信号。 该接收机包括用于解调数字信号的解调单元,用于解映射从解调单元输出的解调数据的解映射单元,用于对从解映射单元输出的数据执行频率去交织处理的频率解交织单元,用于延迟控制信息的延迟单元 在数字信号上叠加规定的时间段的时间解交织单元,以及根据由延迟单元延迟的控制信息指定的交织长度,对频率解交织处理具有的数据进行时间解交织处理的时间解交织单元 被执行
    • 6. 发明授权
    • Receiving apparatus and receiving method
    • 接收装置和接收方法
    • US08744016B2
    • 2014-06-03
    • US13442572
    • 2012-04-09
    • Hiroaki TakagiNaoto AdachiMasataka Umeda
    • Hiroaki TakagiNaoto AdachiMasataka Umeda
    • H04L27/06
    • H04L25/03821H04L27/2665H04L27/2675H04L27/2691
    • A receiving apparatus includes a symbol timing detection unit, a Fourier transform unit, a first symbol timing correction unit, and an interpolation synthesis unit. The symbol timing detection unit is configured to detect a Fourier transform start position from a received transmitting signal of a symbol unit, the Fourier transform unit is configured to perform a Fourier transform using the detected Fourier transform start position. The first symbol timing correction unit is configured to calculate and correct an amount of change between the Fourier transform start position of a reference symbol and the detected Fourier transform start position, and the interpolation synthesis unit is configured to perform an interpolation synthesis of a plurality of delay profiles corresponding to a plurality of symbols including the reference symbol and a symbol in which the amount of change is corrected.
    • 接收装置包括符号定时检测单元,傅里叶变换单元,第一符号定时校正单元和内插合成单元。 符号定时检测单元被配置为从接收到的符号单元的发送信号检测傅立叶变换开始位置,傅立叶变换单元被配置为使用检测的傅立叶变换开始位置进行傅里叶变换。 第一符号定时校正单元被配置为计算和校正参考符号的傅立叶变换开始位置与检测到的傅里叶变换起始位置之间的变化量,并且内插合成单元被配置为执行多个 对应于包括参考符号的多个符号的延迟分布和其中改变量的符号。
    • 9. 发明授权
    • Device and method for receiving digital signal transmitted using OFDM method
    • 用OFDM接收数字信号发送的装置及方法
    • US07912136B2
    • 2011-03-22
    • US11554811
    • 2006-10-31
    • Naoto Adachi
    • Naoto Adachi
    • H04K1/10H04L27/28
    • H03M13/27H03M13/6325H03M13/6505H04L1/0045H04L1/0071H04L27/2649
    • A receiver that receives a digital signal transmitted on the basis of an orthogonal frequency division multiplexing (OFDM) method. This receiver comprises a demodulation unit for demodulating the digital signal, a demapping unit for demapping demodulated data output from the demodulation unit, a frequency deinterleave unit for executing a frequency deinterleaving process on data output from the demapping unit, a delay unit for delaying control information superposed on the digital signal by a prescribed time period, and a time deinterleave unit for executing, on the basis of the interleave length specified by the control information delayed by the delay unit, a time deinterleaving process on data on which the frequency deinterleaving process has been executed.
    • 一种接收器,其接收基于正交频分复用(OFDM)方法发送的数字信号。 该接收机包括用于解调数字信号的解调单元,用于解映射从解调单元输出的解调数据的解映射单元,用于对从解映射单元输出的数据执行频率去交织处理的频率解交织单元,用于延迟控制信息的延迟单元 在数字信号上叠加规定的时间段的时间解交织单元,以及根据由延迟单元延迟的控制信息指定的交织长度,对频率解交织处理具有的数据进行时间解交织处理的时间解交织单元 被执行