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38 条记录 (耗时 0.02 秒)

    INFORMATION PROCESSOR AND INFORMATION PROCESSING METHOD, DISPLAY DEVICE, AND PROGRAM
    22.
    发明申请
    INFORMATION PROCESSOR AND INFORMATION PROCESSING METHOD, DISPLAY DEVICE, AND PROGRAM 有权
    信息处理器和信息处理方法，显示设备和程序

    公开(公告)号：US20100080329A1

    公开(公告)日：2010-04-01

    申请号：US12567837

    申请日：2009-09-28

    申请人： Hidetoshi Kawauchi ,  Toshiyuki Miyauchi ,  Takashi Yokokawa ,  Takuya Okamoto ,  Hiroyuki Kamata

    发明人： Hidetoshi Kawauchi ,  Toshiyuki Miyauchi ,  Takashi Yokokawa ,  Takuya Okamoto ,  Hiroyuki Kamata

    IPC分类号： H04B1/10

    CPC分类号： H04L25/0212 ,  H04L25/022 ,  H04L25/0232 ,  H04L27/2647 ,  H04L27/2665

    摘要： Disclosed herein is an information processor, including: a receiving section configured to receive an OFDM signal transmitted in accordance with an OFDM system; a FFT arithmetically operating section configured to carry out FFT for a signal within a predetermined interval of the OFDM signal; a delay profile estimating section configured to estimate delay profiles from the OFDM signal received by the receiving section; an inter-symbol interference amount estimating section configured to estimate inter-symbol interference amounts for a plurality of candidates for the predetermined interval, respectively, by using the delay profiles estimated by the delay profile estimating section; and a searching section configured to search for the candidate having the minimum inter-symbol interference amount estimated by the inter-symbol interference amount estimating section from among the plurality of candidates in the predetermined interval, and supply data on the candidate thus searched for as the predetermined interval to the FFT arithmetically operating section.

    摘要翻译： 本文公开了一种信息处理器，包括：接收部分，被配置为接收根据OFDM系统传输的OFDM信号; FFT算术运算部，被配置为对所述OFDM信号的预定间隔内的信号进行FFT; 延迟分布估计部，被配置为从所述接收部接收到的OFDM信号估计延迟分布; 符号间干扰量估计部，被配置为通过使用由所述延迟分布估计部估计出的延迟分布，分别估计所述预定间隔的多个候选的符号间干扰量; 以及搜索部，被配置为从所述预定间隔中的所述多个候选中搜索具有由所述符号间干扰量估计部估计的最小符号间干扰量的候选，并且将所搜索的候选者的数据提供为 到FFT运算部分的预定间隔。

    OFDM demodulator, receiver, and method
    24.
    发明申请
    OFDM demodulator, receiver, and method 失效
    OFDM解调器，接收机和方法

    公开(公告)号：US20070177685A1

    公开(公告)日：2007-08-02

    申请号：US11698138

    申请日：2007-01-26

    申请人： Hidetoshi Kawauchi

    发明人： Hidetoshi Kawauchi

    IPC分类号： H04K1/10

    CPC分类号： H04L25/0232 ,  H04L5/0048 ,  H04L25/0216 ,  H04L27/2662 ,  H04L27/2665

    摘要： An orthogonal frequency division multiplexing (OFDM) demodulator demodulates an OFDM signal constituted by OFDM symbols each including at least an effective symbol and a scattered known signal. The OFDM demodulator includes a Fourier transform performing unit, a known signal extracting unit, a time dimension interpolation unit, a delay spread generating unit, a frequency dimension interpolation unit, and a waveform equalizing unit. The delay spread generating unit employs a time difference between a time point for a starting position of the Fourier transform operation performed by the Fourier transform performing unit and a time point at which a latest arriving path arrived as the delay spread.

    摘要翻译： 正交频分复用（OFDM）解调器解调由至少包括有效符号和散射已知信号的OFDM符号构成的OFDM信号。 OFDM解调器包括傅立叶变换执行单元，已知信号提取单元，时间维度插值单元，延迟扩展生成单元，频率维数插值单元和波形均衡单元。 延迟扩展生成部使用由傅立叶变换执行部进行的傅里叶变换动作的开始位置的时刻与作为延迟扩展的最近到达路径到达的时间点之间的时间差。

    Sensor supporting structure for an accelerometer
    25.
    发明授权
    Sensor supporting structure for an accelerometer 失效
    用于加速度计的传感器支撑结构

    公开(公告)号：US5265471A

    公开(公告)日：1993-11-30

    申请号：US863969

    申请日：1992-04-06

    申请人： Hidetoshi Kawauchi ,  Akira Niino

    发明人： Hidetoshi Kawauchi ,  Akira Niino

    IPC分类号： G01P15/00 ,  G01P1/02 ,  G01P15/02 ,  G01D1/02

    CPC分类号： G01P1/023

    摘要： In an accelerometer supporting structure a housing is formed by a cylindrical portion and a flange, and a positioning part whose outer diameter is greater than that of the cylindrical portion and whose length is shorter than the length of the cylindrical portion in the axial direction of the cylindrical portion, is formed in the outer periphery of the cylindrical portion in contiguity to the flange. The inner peripheral surface of the cylindrical portion and the outer peripheral surface of the cylindrical sensor part are fixed to each other by a fixing ring disposed therebetween at an axial distance from the flange. The sensor supporting structure is adapted to be mounted on a mount with the cylindrical portion received in a circular hole of the mount and the flange resting on the mount about the marginal edge of the circular hole and fixed to the mount.

    Receiving apparatus, receiving method and program, and receiving system
    26.
    发明授权
    Receiving apparatus, receiving method and program, and receiving system 有权
    接收装置，接收方法和程序，以及接收系统

    公开(公告)号：US09258165B2

    公开(公告)日：2016-02-09

    申请号：US12788378

    申请日：2010-05-27

    申请人： Hidetoshi Kawauchi

    发明人： Hidetoshi Kawauchi

    IPC分类号： H04B1/66 ,  H04L27/00 ,  H04L27/26 ,  H04L5/00

    CPC分类号： H04L27/2656 ,  H04L5/0044 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2666 ,  H04L27/2676 ,  H04L27/2678

    摘要： Disclosed herein is a receiving apparatus including a correlation value computer configured, for a digital signal, transmitted on a frame basis, having a correlation between a first section and a second section occupying predetermined intervals at a start part of each frame, to extract signals in two sections separated by time intervals of the first section and the second section and compute correlation values; a maximum value detector configured to detect a maximum value of the correlation values; a digital signal processor configured to execute processing on the digital signal on the basis of a timing with which a maximum value has been detected by the maximum value detector; and a reset processor configured to reset the processing executed in the digital signal processor every time the maximum value is detected.

    摘要翻译： 这里公开了一种接收装置，包括相关值计算机，该相关值计算机被配置为针对数字信号，以帧为基础发送，在第一部分和第二部分之间的相关性，每个帧的起始部分占据预定的间隔，以将 两部分由第一部分和第二部分的时间间隔分开，并计算相关值; 最大值检测器，被配置为检测所述相关值的最大值; 数字信号处理器，被配置为基于由最大值检测器检测到最大值的定时对数字信号执行处理; 以及复位处理器，被配置为在每次检测到最大值时复位在数字信号处理器中执行的处理。

    Receiving apparatus and method, program, and receiving system
    27.
    发明授权
    Receiving apparatus and method, program, and receiving system 有权
    接收装置和方法，程序和接收系统

    公开(公告)号：US08488695B2

    公开(公告)日：2013-07-16

    申请号：US12958912

    申请日：2010-12-02

    申请人： Takashi Yokokawa ,  Tadaaki Yuba ,  Hidetoshi Kawauchi ,  Hitoshi Sakai ,  Yuken Goto ,  Suguru Houchi

    发明人： Takashi Yokokawa ,  Tadaaki Yuba ,  Hidetoshi Kawauchi ,  Hitoshi Sakai ,  Yuken Goto ,  Suguru Houchi

    IPC分类号： H04K1/10

    CPC分类号： H04L25/02 ,  H04L25/0232 ,  H04L2025/03414

    摘要： A receiving apparatus for receiving an orthogonal frequency division multiplexing (OFDM) signal including a frame having one frame length of a plurality of patterns. The apparatus comprises an acquiring section to acquire information regarding a preamble signal from an OFDM signal from a transmitting apparatus; a frame determining section to determine whether the one frame length is short in the frame based on the information regarding the acquired preamble signal; and a time interpolating section to obtain transmission path characteristics by comparing a pilot contained in the preamble signal with a known pilot corresponding to the pilot in a phase of transmission, when the frame determining section determines that the one frame length is short in the frame, and to interpolate a data portion in a time direction based on transmission path characteristics.

    摘要翻译： 一种用于接收正交频分多路复用（OFDM）信号的接收装置，包括具有多个模式的一帧长度的帧。 该装置包括：获取部分，从发送装置获取来自OFDM信号的关于前导码信号的信息; 帧确定部分，用于基于关于所获取的前导信号的信息来确定帧中的一个帧长度是否短; 以及时间内插部分，当帧确定部分确定帧中的一个帧长度短时，通过将包含在前导码信号中的导频与对应于传输的相位中的导频的已知导频进行比较来获得传输路径特性， 并且基于传输路径特性在时间方向上内插数据部分。

    Receiving apparatus, receiving method, and program
    29.
    发明授权
    Receiving apparatus, receiving method, and program 有权
    接收装置，接收方法和程序

    公开(公告)号：US08249180B2

    公开(公告)日：2012-08-21

    申请号：US12749644

    申请日：2010-03-30

    申请人： Hidetoshi Kawauchi ,  Tomoharu Honda

    发明人： Hidetoshi Kawauchi ,  Tomoharu Honda

    IPC分类号： H04L27/28 ,  H04K1/10

    CPC分类号： H04L27/2657 ,  H04L27/0014 ,  H04L27/2647 ,  H04L27/2675 ,  H04L2027/0032 ,  H04L2027/0057 ,  H04L2027/0065 ,  H04L2027/0095

    摘要： A receiving apparatus is disclosed which includes a reception device configured to receive a signal modulated through Orthogonal Frequency Division Multiplexing known as OFDM; and a detection device configured to detect whether or not spectrum inversion has occurred in the OFDM-modulated signal by use of a spectrum inversion presence signal obtained by inverting a subcarrier position of a known signal included in the OFDM-modulated signal.

    摘要翻译： 公开了一种接收装置，其包括被配置为接收被称为OFDM的正交频分复用调制的信号的接收装置; 以及检测装置，被配置为通过使用通过将包括在所述OFDM调制信号中的已知信号的子载波位置反相而获得的频谱反转存在信号来检测在所述OFDM调制信号中是否发生频谱反转。