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    • 2. 发明申请
    • RECIEVING APPARATUS AND METHOD, PROGRAM, AND RECIEVING SYSTEM
    • 回收装置和方法,程序和响应系统
    • US20110142176A1
    • 2011-06-16
    • US12958912
    • 2010-12-02
    • Takashi YOKOKAWATadaaki YubaHidetoshi KawauchiHitoshi SakaiYuken GotoSuguru Houchi
    • Takashi YOKOKAWATadaaki YubaHidetoshi KawauchiHitoshi SakaiYuken GotoSuguru Houchi
    • H04L27/06
    • H04L25/02H04L25/0232H04L2025/03414
    • Disclosed herein is a receiving apparatus for receiving an orthogonal frequency division multiplexing signal, namely, OFDM signal having a frame having one frame length of a plurality of patterns, including: an acquiring section configured to acquire information on a preamble signal from the OFDM signal transmitted from a transmitting apparatus in accordance with an OFDM system; a frame determining section configured to determine whether or not the one frame length is short in the frame based on the information on the preamble signal acquired from the acquiring section; and a time interpolating section configured to obtain transmission path characteristics by comparing a pilot contained in the preamble signal and a known pilot corresponding to the pilot in a phase of transmission with each other when the frame determining section determines that the one frame length is short in the frame, and interpolate a data portion in a time direction based on the transmission path characteristics thus obtained.
    • 本发明公开了一种用于接收正交频分复用信号的接收装置,即具有多个模式的一帧长度的帧的OFDM信号,包括:获取部,被配置为从发送的OFDM信号获取关于前导信号的信息 根据OFDM系统的发送装置; 帧确定部分,被配置为基于从获取部分获取的关于前导信号的信息来确定帧中的一个帧长度是否短; 以及时间内插部,被配置为当帧确定部确定一个帧长度短时,通过将包含在前导信号中的导频与在传输相位中的导频对应的已知导频彼此进行比较来获得传输路径特性 并根据所获得的传输路径特性在时间方向内插数据部分。
    • 3. 发明申请
    • RECEPTION APPARATUS, RECEPTION METHOD, PROGRAM, AND RECEPTION SYSTEM
    • 接收装置,接收方法,程序和接收系统
    • US20140016728A1
    • 2014-01-16
    • US14006799
    • 2012-03-23
    • Takashi YokokawaNaoki YoshimochiHitoshi Sakai
    • Takashi YokokawaNaoki YoshimochiHitoshi Sakai
    • H04L27/26
    • H04L27/2649H04N21/4263
    • The present technique relates to a reception apparatus, a reception method, a program, and a reception system capable of starting decoding of data in a short time. A reception apparatus according to an aspect of the present technique includes a demodulation unit configured to demodulate a modulated signal used to transmit transmission control information about data and the data to be transmitted, a first decoding unit configured to decode the transmission control information obtained by demodulation performed with the demodulation unit, a storage unit configured to store the data obtained by demodulation performed with the demodulation unit, and a second decoding unit configured to decode the data stored in the storage unit on the basis of the transmission control information decoded by the first decoding unit. The present technique can be applied to a receiver receiving an OFDM signal of DVB-C2.
    • 本技术涉及能够在短时间内开始数据解码的接收装置,接收方法,程序和接收系统。 根据本技术的一个方面的接收装置包括解调单元,被配置为对用于发送关于数据的发送控制信息和要发送的数据的调制信号进行解调;第一解码单元,被配置为对通过解调获得的发送控制信息进行解码 用解调单元执行的存储单元,存储单元,被配置为存储通过用解调单元执行的解调获得的数据;以及第二解码单元,被配置为基于由第一个解码单元解码的传输控制信息来解码存储在存储单元中的数据 解码单元。 本技术可以应用于接收DVB-C2的OFDM信号的接收机。
    • 5. 发明申请
    • RECEIVING APPARATUS, RECEIVING METHOD, AND RECEIVING SYSTEM
    • 接收装置,接收方法和接收系统
    • US20110317790A1
    • 2011-12-29
    • US13165230
    • 2011-06-21
    • Takashi YokokawaHitoshi SakaiTaylor Matthew
    • Takashi YokokawaHitoshi SakaiTaylor Matthew
    • H04L27/06H04B1/10
    • H04L25/0232H04L5/0007H04L5/0048H04L25/0226H04L27/2647
    • A receiving apparatus includes: a transmission path characteristics estimating section obtaining pre-interpolation transmission path characteristic data as estimate values for transmission path characteristics as characteristics of a transmission path of an OFDM signal for transmission symbols of pilot signals by using the pilot signals contained in the OFDM signal, and filtering the pre-interpolation transmission path characteristic data by using an interpolation filter, thereby obtaining transmission path characteristic data as estimate values for transmission path characteristics for transmission symbols of the OFDM signal; a distortion correcting section performing distortion correction for the OFDM signal by using the transmission path characteristic data; and a filter controlling section controlling a pass band of the interpolation filter.
    • 接收装置包括:传输路径特性估计部分,通过使用包含在导频信号中的导频信号,获得插值前传输路径特性数据作为传输路径特性的估计值,作为用于导频信号的传输符号的OFDM信号的传输路径的特性 OFDM信号,并且通过使用内插滤波器对插值前传输路径特征数据进行滤波,从而获得作为OFDM信号的发送符号的传输路径特性的估计值的传输路径特性数据; 失真校正部通过使用所述传输路径特性数据对所述OFDM信号进行失真校正; 以及控制内插滤波器的通带的滤波器控制部。
    • 6. 发明申请
    • RECEIVING APPARATUS, RECEIVING METHOD, PROGRAM, AND RECEIVING SYSTEM
    • 接收设备,接收方法,程序和接收系统
    • US20100245677A1
    • 2010-09-30
    • US12726484
    • 2010-03-18
    • Takashi YOKOKAWAHitoshi Sakai
    • Takashi YOKOKAWAHitoshi Sakai
    • H03M13/05H04N5/44G06F11/10
    • H03M13/11H03M13/2707H03M13/2785H03M13/2789
    • A receiving apparatus includes: a deinterleaving device configured to perform a deinterleaving process on an LDPC-coded data signal having undergone an interleaving process, the LDPC representing Low Density Parity Check, by use of a memory which has columns capable of storing as many as “a” data, the “a” being an integer of at least 1; and a control device configured such that if the data signal is supplied in units of N data, the N being an integer smaller than the “a,” the control device controls the deinterleaving device to write the data signal to a predetermined address of the memory while reading previously written data from the predetermined address in a write period, the control device further controlling the deinterleaving device to stop writing the data signal to the predetermined address of the memory while reading the previously written data from the predetermined address in a write inhibit period.
    • 接收装置包括:解交织装置,被配置为对已经经历交织处理的LDPC编码数据信号执行解交织处理,LDPC表示低密度奇偶校验,通过使用具有能够存储多达“ “数据”,“a”为至少1的整数; 以及控制装置,被配置为使得如果以N个数据为单位提供数据信号,则N是小于“a”的整数,控制装置控制解交织装置将数据信号写入存储器的预定地址 同时在写周期期间从预定地址读取先前写入的数据时,控制装置进一步控制解交错装置,以便在写入禁止期间从预定地址读出先前写入的数据时停止将数据信号写入存储器的预定地址 。
    • 7. 发明授权
    • Receiving apparatus, receiving method, and receiving system
    • 接收装置,接收方式和接收系统
    • US08750435B2
    • 2014-06-10
    • US13165230
    • 2011-06-21
    • Takashi YokokawaHitoshi SakaiTaylor Matthew
    • Takashi YokokawaHitoshi SakaiTaylor Matthew
    • H04L27/06
    • H04L25/0232H04L5/0007H04L5/0048H04L25/0226H04L27/2647
    • A receiving apparatus includes: a transmission path characteristics estimating section obtaining pre-interpolation transmission path characteristic data as estimate values for transmission path characteristics as characteristics of a transmission path of an OFDM signal for transmission symbols of pilot signals by using the pilot signals contained in the OFDM signal, and filtering the pre-interpolation transmission path characteristic data by using an interpolation filter, thereby obtaining transmission path characteristic data as estimate values for transmission path characteristics for transmission symbols of the OFDM signal; a distortion correcting section performing distortion correction for the OFDM signal by using the transmission path characteristic data; and a filter controlling section controlling a pass band of the interpolation filter.
    • 接收装置包括:传输路径特性估计部分,通过使用包含在导频信号中的导频信号,获得插值前传输路径特性数据作为传输路径特性的估计值,作为用于导频信号的传输符号的OFDM信号的传输路径的特性 OFDM信号,并且通过使用内插滤波器对插值前传输路径特征数据进行滤波,从而获得作为OFDM信号的发送符号的传输路径特性的估计值的传输路径特性数据; 失真校正部通过使用所述传输路径特性数据对所述OFDM信号进行失真校正; 以及控制内插滤波器的通带的滤波器控制部。
    • 8. 发明授权
    • Receiver, receiving method, program and receiving system
    • 接收机,接收方式,程序和接收系统
    • US08503583B2
    • 2013-08-06
    • US12953832
    • 2010-11-24
    • Takashi YokokawaOsamu ShinyaHitoshi Sakai
    • Takashi YokokawaOsamu ShinyaHitoshi Sakai
    • H04L27/06
    • H04L5/0007H04L1/0052H04L1/0071
    • A receiver that receives an Orthogonal Frequency Division Multiplexing (OFDM) signal obtained by modulating a common packet sequence and data packet sequence. The common packet sequence is made up of packets common to a plurality of streams. The data packet sequence is made up of packets specific to one of the plurality of streams. The receiver sorts the common packet sequence, obtained by demodulating the received OFDM signal, in the time domain, and sorts the data packet sequence, obtained by demodulating the received OFDM signal, in the time domain. The receiver then switches the output for error correction from the one sorting over to the other sorting if, while the one sorting supplies its output to the error correction, the other sorting completes its input of a predetermined unit of information to be processed.
    • 接收器,其接收通过调制公共分组序列和数据分组序列而获得的正交频分复用(OFDM)信号。 公共分组序列由多个流公共的分组组成。 数据分组序列由特定于多个流之一的分组组成。 接收机对在时域中对接收到的OFDM信号进行解调而获得的公共分组序列进行排序,并对在时域中对接收到的OFDM信号进行解调而获得的数据分组序列进行分类。 然后,如果在一个排序将其输出提供给纠错的情况下,接收器将用于纠错的输出从一个排序切换到另一个分类,则另一排序完成其要处理的预定信息单元的输入。
    • 9. 发明授权
    • Receiving apparatus, receiving method, program, and receiving system
    • 接收装置,接收方法,程序和接收系统
    • US08423864B2
    • 2013-04-16
    • US12726484
    • 2010-03-18
    • Takashi YokokawaHitoshi Sakai
    • Takashi YokokawaHitoshi Sakai
    • G11C29/00
    • H03M13/11H03M13/2707H03M13/2785H03M13/2789
    • A receiving apparatus includes: a deinterleaving device configured to perform a deinterleaving process on an LDPC-coded data signal having undergone an interleaving process, the LDPC representing Low Density Parity Check, by use of a memory which has columns capable of storing as many as “a” data, the “a” being an integer of at least 1; and a control device configured such that if the data signal is supplied in units of N data, the N being an integer smaller than the “a,” the control device controls the deinterleaving device to write the data signal to a predetermined address of the memory while reading previously written data from the predetermined address in a write period, the control device further controlling the deinterleaving device to stop writing the data signal to the predetermined address of the memory while reading the previously written data from the predetermined address in a write inhibit period.
    • 接收装置包括:解交织装置,被配置为对已经经历交织处理的LDPC编码数据信号执行解交织处理,LDPC表示低密度奇偶校验,其使用具有能够存储多达一个 数据,a为至少1的整数; 以及控制装置,被配置为使得如果以N个数据为单位提供数据信号,则N是小于a的整数,控制装置控制解交织装置将数据信号写入存储器的预定地址,同时读取 在写入期间,从预定地址预先写入的数据,控制装置进一步控制解交错装置,以便在写入禁止期间从预定地址读出先前写入的数据时停止将数据信号写入存储器的预定地址。