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    Reception device, control method, and program
    1.
    发明授权
    Reception device, control method, and program 有权
    接收设备，控制方法和程序

    公开(公告)号：US08081027B2

    公开(公告)日：2011-12-20

    申请号：US11946351

    申请日：2007-11-28

    Applicant: Yasuhiro Iida ,  Kazuhisa Funamoto

    Inventor： Yasuhiro Iida ,  Kazuhisa Funamoto

    IPC: H04L27/22

    CPC classification number: H04L27/38 ,  H04L27/0014 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0069 ,  H04L2027/0081 ,  H04L2027/0095

    Abstract: A reception device that receives a modulation signal being a result of digital modulation of a carrier is disclosed. The device includes: a demodulation section that demodulates the modulation signal into a demodulation signal including an I component and a Q component; a numerically controlled oscillation section that generates a signal of predetermined phase; a phase error detection section that detects a phase error between a phase of a symbol of the demodulation signal and the predetermined phase of the signal generated by the numerically controlled oscillation section; a phase rotation section that rotates the phase of the symbol of the demodulation signal in accordance with the phase error; a loop filter that filters the phase error, and controls the numerically controlled oscillation section; and a gain control section that controls a gain of the loop filter based on a modulation technique of the modulation signal.

    Abstract translation: 公开了接收作为载波的数字调制结果的调制信号的接收装置。 该装置包括：解调部，其将调制信号解调为包括I分量和Q分量的解调信号; 产生预定相位信号的数控振荡部分; 相位误差检测部分，检测解调信号的符号的相位与由数字振荡部分产生的信号的预定相位之间的相位误差; 相位旋转部，其根据相位误差旋转解调信号的符号的相位; 环路滤波器，滤波相位误差，并控制数控振荡部分; 以及增益控制部，其基于调制信号的调制技术来控制环路滤波器的增益。

    DATA READER, DATA READING METHOD AND DATA RECORDER
    2.
    发明申请
    DATA READER, DATA READING METHOD AND DATA RECORDER 审中-公开
    数据读取器，数据读取方法和数据记录器

    公开(公告)号：US20110186638A1

    公开(公告)日：2011-08-04

    申请号：US12980941

    申请日：2010-12-29

    Applicant: Kazuhisa FUNAMOTO

    Inventor： Kazuhisa FUNAMOTO

    IPC: G06K7/12 ,  G06K19/06

    CPC classification number: G06K7/12 ,  G06K19/06

    Abstract: Disclosed herein is a data reader including: an image acquisition section configured to acquire an image having color cells arranged in a two-dimensional space, each of the color cells being made up of a graphic of a given color density in a predetermined form and size; a spatial deinterleaving section configured to perform spatial deinterleaving adapted to sort the color cells arranged in the two-dimensional space in a spatially distributed manner in the acquired image; and a color decoding section configured to decode data coded in association with colors of the color cells and densities of the colors by analyzing the image with the sorted color cells as color data associated with coordinate positions in the two-dimensional space.

    Abstract translation: 本文公开了一种数据读取器，包括：图像获取部，被配置为获取具有以二维空间排列的彩色单元的图像，每个颜色单元由预定形式和尺寸的给定颜色浓度的图形组成 ; 空间解交织部分，被配置为执行空间解交织，其适于在所获取的图像中以空间分布的方式对布置在二维空间中的颜色单元进行排序; 以及颜色解码部分，被配置为通过分析具有排序的颜色单元的图像作为与二维空间中的坐标位置相关联的颜色数据来解码与颜色单元的颜色和颜色密度相关联地编码的数据。

    Ofdm demodulation device
    4.
    发明授权
    Ofdm demodulation device 失效
    Ofdm解调装置

    公开(公告)号：US07447277B2

    公开(公告)日：2008-11-04

    申请号：US10504341

    申请日：2003-12-18

    Applicant: Atsushi Yajima ,  Kazuhisa Funamoto ,  Yasunari Ikeda

    Inventor： Atsushi Yajima ,  Kazuhisa Funamoto ,  Yasunari Ikeda

    IPC: H04L27/00 ,  H04L27/10 ,  H03K7/06

    CPC classification number: H04L27/2605 ,  H04L7/02 ,  H04L27/2662 ,  H04L27/2676

    Abstract: An OFDM receiver (1) is provided which includes a clock-frequency error calculation circuit (41) to calculate a difference in clock frequency between a clock for a received signal and an operation clock used in the receiver (1), and a guard correlation/peak detection circuit (12) to determine an autocorrelation of a guard interval and detect a peak timing of the correlation signal. The guard correlation/peak detection circuit (12) incorporates a free-running counter, and outputs a count of the free-running counter at the peak timing to the clock-frequency error calculation circuit (41). The clock-frequency error calculation circuit (41) uses a plurality of time-change rate detection circuits provided at different time intervals to calculate a time-change rate of an input count. The clock-frequency error calculation circuit (41) plots the time-change rates to generate a histogram and calculates a clock-frequency error from the histogram.

    Abstract translation: 提供了一种OFDM接收器（1），其包括时钟频率误差计算电路（41），用于计算接收信号的时钟和接收机（1）中使用的操作时钟之间的时钟频率差，以及保护相关 /峰值检测电路（12），以确定保护间隔的自相关性并检测相关信号的峰值定时。 保护相关/峰值检测电路（12）包含自由运行计数器，并将峰值定时的自由运行计数器的计数输出到时钟频率误差计算电路（41）。 时钟频率误差计算电路（41）使用以不同时间间隔设置的多个时变速率检测电路来计算输入计数的时间变化率。 时钟频率误差计算电路（41）绘制时间变化率以产生直方图，并根据直方图计算时钟频率误差。

    Reception Device, Control Method, and Program
    5.
    发明申请
    Reception Device, Control Method, and Program 有权
    接收设备，控制方法和程序

    公开(公告)号：US20080136510A1

    公开(公告)日：2008-06-12

    申请号：US11946351

    申请日：2007-11-28

    Applicant: Yasuhiro IIDA ,  Kazuhisa Funamoto

    Inventor： Yasuhiro IIDA ,  Kazuhisa Funamoto

    IPC: H04L27/22

    CPC classification number: H04L27/38 ,  H04L27/0014 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0069 ,  H04L2027/0081 ,  H04L2027/0095

    Abstract: A reception device that receives a modulation signal being a result of digital modulation of a carrier is disclosed. The device includes:a demodulation section that demodulates the modulation signal into a demodulation signal including an I component and a Q component;a numerically controlled oscillation section that generates a signal of predetermined phase;a phase error detection section that detects a phase error between a phase of a symbol of the demodulation signal and the predetermined phase of the signal generated by the numerically controlled oscillation section;a phase rotation section that rotates the phase of the symbol of the demodulation signal in accordance with the phase error;a loop filter that filters the phase error, and controls the numerically controlled oscillation section; anda gain control section that controls a gain of the loop filter based on a modulation technique of the modulation signal.

    Abstract translation: 公开了接收作为载波的数字调制结果的调制信号的接收装置。 该装置包括：解调部，其将调制信号解调为包括I分量和Q分量的解调信号; 产生预定相位信号的数控振荡部分; 相位误差检测部分，检测解调信号的符号的相位与由数字振荡部分产生的信号的预定相位之间的相位误差; 相位旋转部，其根据相位误差旋转解调信号的符号的相位; 环路滤波器，滤波相位误差，并控制数控振荡部分; 以及增益控制部，其基于调制信号的调制技术来控制环路滤波器的增益。

    RECEIVING APPARATUS, RECEIVING METHOD, AND PROGRAM
    7.
    发明申请
    RECEIVING APPARATUS, RECEIVING METHOD, AND PROGRAM 有权
    接收设备，接收方法和程序

    公开(公告)号：US20100080330A1

    公开(公告)日：2010-04-01

    申请号：US12567856

    申请日：2009-09-28

    Applicant: Hidetoshi KAWAUCHI ,  Masayuki Hattori ,  Toshiyuki Miyauchi ,  Takashi Yokokawa ,  Kazuhiro Shimizu ,  Kazuhisa Funamoto

    Inventor： Hidetoshi KAWAUCHI ,  Masayuki Hattori ,  Toshiyuki Miyauchi ,  Takashi Yokokawa ,  Kazuhiro Shimizu ,  Kazuhisa Funamoto

    IPC: H04B1/10

    CPC classification number: H04L27/2662 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2656 ,  H04L27/2665

    Abstract: Disclosed herein is a receiving apparatus including: first to third position determination sections configured to determine the start position of an FFT interval which serves as a signal interval targeted for FFT by an FFT section; a selection section configured to select one of those start positions of the FFT interval which are determined by the first through the third position determination section; and the FFT section configured to perform FFT on the OFDM time domain signal by regarding the start position selected by the selection section as the start position of the FFT interval in order to generate the first OFDM frequency domain signal.

    Abstract translation: 本发明公开了一种接收装置，包括：第一至第三位置确定部分，被配置为确定FFT间隔的起始位置，其作为由FFT部分进行FFT的信号间隔; 选择部，被配置为选择由所述第一至第三位置确定部确定的所述FFT间隔的那些起始位置之一; FFT部，被配置为通过将由选择部选择出的开始位置作为FFT间隔的开始位置，对OFDM时域信号进行FFT，以生成第一OFDM频域信号。

    Ofdm demodulation apparatus
    8.
    发明申请
    Ofdm demodulation apparatus 审中-公开
    Ofdm解调装置

    公开(公告)号：US20050147186A1

    公开(公告)日：2005-07-07

    申请号：US10505794

    申请日：2003-12-18

    Applicant: Kazuhisa Funamoto ,  Takahiro Okada ,  Tamotsu Ikeda ,  Atsushi Yajima ,  Yasunari Ikeda

    Inventor： Kazuhisa Funamoto ,  Takahiro Okada ,  Tamotsu Ikeda ,  Atsushi Yajima ,  Yasunari Ikeda

    IPC: H04J11/00 ,  H04L7/08 ,  H04L27/14 ,  H04L27/26

    CPC classification number: H04L27/2605 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2676

    Abstract: An OFDM demodulation (1) is provided which includes a guard correlation/peak time detection circuit (12) to generate a peak timing Np of a guard interval correlation value, and a timing synchronization circuit (13) to estimate a symbol-boundary time Nx from the peak timing Np. The timing synchronization circuit (13) calculates the symbol-boundary time Nx by filtering the peak time Np by a DLL (delay locked loop) filter (43). Further, the DLL filter (43) includes a limiter (52) to limit the range of phase-error component and an asymmetric gain circuit (53) to change the magnitude of the gain correspondingly to the polarity of the phase error to prevent the timing from being pulled out due to a fading or multipath.

    Abstract translation: 提供了一种OFDM解调（1），其包括：保护相关/峰值时间检测电路（12），用于产生保护间隔相关值的峰值定时Np;以及定时同步电路（13），用于估计符号边界时间Nx 从峰值时刻Np。 定时同步电路（13）通过DLL（延迟锁定环）滤波器（43）对峰值时间Np进行滤波来计算符号边界时间Nx。 此外，DLL滤波器（43）包括限制相位误差分量范围的限幅器（52）和非对称增益电路（53），以相应于相位误差的极性改变增益的幅度，以防止定时 由于衰落或多路径而被拉出。

    Signal processing device and method
    9.
    发明授权
    Signal processing device and method 有权
    信号处理装置及方法

    公开(公告)号：US09426008B2

    公开(公告)日：2016-08-23

    申请号：US12951687

    申请日：2010-11-22

    Applicant: Kazuhisa Funamoto ,  Kazuhiro Oguchi ,  Kazukuni Takanohashi

    Inventor： Kazuhisa Funamoto ,  Kazuhiro Oguchi ,  Kazukuni Takanohashi

    IPC: H04Q5/22 ,  H04L27/227 ,  H04L7/04 ,  H04H60/11 ,  H04B1/10 ,  H04L27/26 ,  H04L5/00

    CPC classification number: H04L27/2278 ,  H04B1/1027 ,  H04H60/11 ,  H04L5/0007 ,  H04L7/042 ,  H04L27/2662

    Abstract: Disclosed herein is a signal processing device including: a correlation signal output unit configured to, about a received signal transmitted from another device, calculate a correlation value between the received signal and a pattern of a waveform of a known signal and output the calculated correlation value as a correlation signal in a time corresponding to one symbol; a known signal determiner configured to determine, based on the correlation signal, whether or not the received signal is modulated by the known signal in a first interval defined when the time corresponding to one symbol is divided into a plurality of intervals; and an identifier configured to identify a series of the symbol based on a result of the determination.

    Abstract translation: 这里公开了一种信号处理装置，包括：相关信号输出单元，被配置为关于从另一装置发送的接收信号，计算接收信号和已知信号的波形图案之间的相关值，并输出所计算的相关值 作为对应于一个符号的时间的相关信号; 已知信号确定器，被配置为基于所述相关信号确定所接收的信号是否在对应于一个符号的时间被划分为多个间隔时定义的第一间隔中被所述已知信号调制; 以及被配置为基于所述确定的结果来识别所述符号的一系列的标识符。

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