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71. 发明申请

US20060193393A1 OFDM transmitter 有权
标题翻译： OFDM发射机
公开(公告)号：US20060193393A1
公开(公告)日：2006-08-31
申请号：US11353148
申请日：2006-02-14
申请人： Jiyun Shen , Hiromasa Fujii , Takahiro Asai , Hitoshi Yoshino
发明人： Jiyun Shen , Hiromasa Fujii , Takahiro Asai , Hitoshi Yoshino
IPC分类号： H04K1/10
CPC分类号： H04L27/2621
摘要： An OFDM transmitter is configured to perform a peak reduction process on a signal sequence to be transmitted in a stepwise manner to transmit a peak processed transmission signal. The OFDM transmitter includes a dividing inverse fast Fourier transform unit (104) configured to divide the signal sequence to be transmitted into N signal sequences (N>2) and perform inverse fast Fourier transform on each of the divided signal sequences to output N time signal sequences; a threshold control unit (106) configured to determine at least two threshold values (Cth) used in the stepwise peak reduction process; and a first peak reduction processing unit (1201) configured to determine a first cyclic shift to be applied to one of the time signal sequences based on a first one of the threshold values, produce a first cyclically shifted signal sequence according to the first cyclic shift, and output a first peak processed signal sequence based on the first cyclically shifted signal sequence. The first cyclic shift is determined such that an exceeding power level over the first threshold value in the first peak processed signal sequence becomes the minimum.
摘要翻译： OFDM发送器被配置为对要以逐步方式发送的信号序列执行峰值降低处理，以发送峰值处理的发送信号。所述OFDM发射机包括：分频逆快速傅里叶变换单元，被配置为将要发送的信号序列划分为N个信号序列（N> 2），并对每个分割信号序列进行快速傅立叶逆变换，以输出N个时间信号序列; 阈值控制单元（106），被配置为确定在所述逐步峰值降低处理中使用的至少两个阈值（C SUB）; 以及第一峰值缩减处理单元（120“1”），其被配置为基于所述阈值中的第一个来确定要施加到所述时间信号序列之一的第一循环移位，产生第一循环移位信号序列，并且基于第一循环移位信号序列输出第一峰值处理信号序列。确定第一循环移位，使得在第一峰值处理信号序列中超过第一阈值的超过功率电平变为最小。

72. 发明授权

US07045923B2 Magnetizing method and permanent magnet magnetized thereby 失效
标题翻译：磁化方法和永磁体由此磁化
公开(公告)号：US07045923B2
公开(公告)日：2006-05-16
申请号：US10710296
申请日：2004-06-30
申请人： Hiromasa Fujii
发明人： Hiromasa Fujii
IPC分类号： H02K21/12
CPC分类号： H02K15/03 , H01F13/003 , H02K1/27
摘要： A conductive attenuation body is arranged close to at least a part of surface of a material to be magnetized which has far lower conductivity than that of the attenuation body. Furthermore, the change in magnetic flux during magnetization is rapidly intensified for a sufficiently short period of time and rapidly weakened. The magnetization flux is impressed in form of penetrating the attenuation body. With the rapid change in the magnetization flux over time, in the conductive attenuation body, an eddy current is generated in a direction canceling the magnetization flux and thus the magnetization field weakens. The magnetization waveform can be adjusted by adjusting a thickness, an arrangement shape or expanse of the attenuation body.
摘要翻译：导电衰减体靠近被磁化材料表面的至少一部分被布置，其具有远低于衰减体的电导率。此外，磁化期间的磁通量的变化在足够短的时间段内迅速增强并且迅速变弱。磁化通量以穿透衰减体的形式被压入。随着磁通量随时间的快速变化，在导电衰减体中，在消除磁通量的方向上产生涡流，因此磁化场减弱。磁化波形可以通过调整衰减体的厚度，排列形状或扩展来调节。

73. 发明授权

US07027533B2 Turbo-reception method and turbo-receiver 失效
标题翻译：涡轮接收方式和涡轮接收机
公开(公告)号：US07027533B2
公开(公告)日：2006-04-11
申请号：US10076407
申请日：2002-02-19
申请人： Tetsushi Abe , Hiromasa Fujii , Shigeru Tomisato , Tadashi Matsumoto
发明人： Tetsushi Abe , Hiromasa Fujii , Shigeru Tomisato , Tadashi Matsumoto
IPC分类号： H04L27/06 , H03M13/03
CPC分类号： H04L25/0236 , H04L1/005 , H04L25/0204
摘要： An impluse response hmn(q) of each transmission path is estimated from N received signals rm (m=1, . . . , M) and a known signal (for a number of users equal to N, n=1, . . . , N). M×N matrix H (q) having hmn(q) as an element and a Q×Q matrix H having H(q) as an element are determined (where Q represents a number of multipaths of each transmitted wave and q=0, . . . , Q−1). A soft decision value b′n(k) is determined from decoded λ2 [bn(k)], and this is used to generate an interference component matrix B′(k) to generate an interference replica H·B′(k). The interference replica H·B′(k) is subtracted from a received matrix y(k) to determine y′(k). y(k) and H are used to determine an adaptive filter coefficient wn(k) to be applied to an n-th user in order to eliminate residual interference components in y′(k) according to the minimum mean square error criteria. y(k) is passed through wn(k) to provide a log-likelihood ratio as a received signal from the user n from which interferences are eliminated.
摘要翻译：从N个接收信号r m（m = 1，...，M）和已知信号（m 1，...，M）估计每个传输路径的静态响应（q）对于等于N的数个用户，n = 1，...，N）。确定具有h（q）作为元素的M×N矩阵H（q）和具有H（q）作为元素的QxQ矩阵H（其中Q表示每个发射波的多径的数量， q = 0，... Q-1）。从解码的λ2（b）n（k）]确定软判定值b''N（k），并将其用于生成干扰分量矩阵B'（k）以产生干扰复制品H.B'（k）。从接收矩阵y（k）中减去干扰副本H.B'（k）以确定y'（k）。使用y（k）和H来确定要施加到第n个用户的自适应滤波器系数w N（k），以便根据下式来消除y'（k）中的残留干扰分量：最小均方误差标准。 y（k）通过w（n）（k），以提供对数似然比作为来自消除了干扰的用户n的接收信号。

74. 发明申请

US20050265468A1 Transmitter and transmission controlling method 有权
标题翻译：发射机和传输控制方法
公开(公告)号：US20050265468A1
公开(公告)日：2005-12-01
申请号：US11136520
申请日：2005-05-25
申请人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hirohito Suda
发明人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hirohito Suda
IPC分类号： H04J11/00 , G06F17/14 , H04B1/04 , H04L27/26 , H04K1/10
CPC分类号： H04L27/2621
摘要： An OFDM transmitter (100) is disclosed. The OFDM transmitter comprises: a sorter (103-1) for sorting plural input complex signals and partitioning them into plural groups; plural IFFTs (103-2) for performing inverse Fourier transform on the input complex signals in groups; a peak reducer (103-4) for performing peak reduction, based on outputs from at least one of the IFFTs; and a multiple discrete signal generator (103-5) for generating a designated number of discrete signals from outputs of the peak reducer.
摘要翻译：公开了一种OFDM发射机（100）。 OFDM发射机包括：分类器（103-1），用于对多个输入复合信号进行分类并将其分成多个组; 用于对组中的输入复信号执行逆傅立叶变换的多个IFFT（103-2）基于来自所述IFFT中的至少一个的输出，执行峰值降低的峰值减速器（103-4）; 以及用于从所述峰值衰减器的输出产生指定数量的离散信号的多个离散信号发生器（103-5）。

75. 发明申请

US20050259565A1 Radio communication system, radio transmitter and radio receiver 有权
标题翻译：无线电通信系统，无线电发射机和无线电接收机
公开(公告)号：US20050259565A1
公开(公告)日：2005-11-24
申请号：US11121077
申请日：2005-05-04
申请人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hitoshi Yoshino
发明人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hitoshi Yoshino
IPC分类号： H04J11/00 , H04B1/04 , H04L27/26
CPC分类号： H04L27/2614
摘要： A radio transmitter adopting the OFDM scheme is disclosed. The radio transmitter includes an amplitude measuring part for measuring the amplitude of a transmission signal on which inverse Fourier transform has been performed; a power control part for outputting, based on the result of the measurement, control signals each for adjusting the amplitude of a signal on which inverse Fourier transform has not been performed, each signal corresponding to one of plural sub-carriers; and multiple multiplying parts each for multiplying the amplitude of the signal by a multiplying number indicated by the control signal. The power control part outputs the control signal based on a product of a signal pf(n) obtained by performing Fourier transform on an output of the amplitude measuring part and the signal sf(n).
摘要翻译：公开了采用OFDM方案的无线电发射机。无线电发射机包括用于测量其上进行了傅立叶逆变换的传输信号的幅度的幅度测量部分; 功率控制部分，用于基于测量结果输出用于调整未进行傅立叶逆变换的信号的振幅的控制信号，每个信号对应于多个子载波中的一个; 以及多个乘法器，用于将信号的振幅乘以由控制信号指示的乘数。功率控制部分基于通过对振幅测量部分的输出执行傅里叶变换而得到的信号p（n）（n）的乘积和信号s （n）。

76. 发明申请

US20050190822A1 Wireless relay system, wireless relay apparatus, and wireless relay method 有权
标题翻译：无线中继系统，无线中继装置和无线中继方式
公开(公告)号：US20050190822A1
公开(公告)日：2005-09-01
申请号：US11061539
申请日：2005-02-18
申请人： Hiromasa Fujii , Hirohito Suda , Tetsu Tanaka
发明人： Hiromasa Fujii , Hirohito Suda , Tetsu Tanaka
IPC分类号： H04J11/00 , H04B7/015 , H04B7/15 , H04B7/155 , H04B7/26 , H04J15/00 , H04B5/00
CPC分类号： H04B7/15585 , H04L5/0023 , H04L5/0032 , H04L5/0048 , H04L25/0226 , H04L27/2602
摘要： A wireless relay system for relaying a radio signal transmitted from a first wireless station to a second wireless station via a wireless relay apparatus is disclosed. The wireless relay system includes a relay control part for receiving transmission symbols transmitted from the first wireless station and refraining from relaying a portion of the symbols, a pilot signal transmission part for transmitting a pilot signal that is inserted into a section of the portion of the transmission symbols, a coupling loop interference wave estimation part for receiving the pilot signal and estimating a coupling loop interference wave based on the pilot signal, and a coupling loop interference wave cancellation part for subtracting the estimated coupling loop interference wave from a reception signal.
摘要翻译：公开了一种用于经由无线中继装置中继从第一无线站发送到第二无线站的无线电信号的无线中继系统。无线中继系统包括：中继控制部分，用于接收从第一无线站发送的传输符号，并避免中继一部分符号;导频信号发送部分，用于发送导频信号，该导频信号插入到该部分的一部分; 传输符号，用于接收导频信号并基于导频信号估计耦合环路干扰波的耦合环路干扰波估计部分，以及用于从接收信号中减去所估计的耦合环路干扰波的耦合环路干扰波消除部分。

77. 发明申请

US20050135788A1 Image encoder and recorder 审中-公开
标题翻译：图像编码器和录像机
公开(公告)号：US20050135788A1
公开(公告)日：2005-06-23
申请号：US10920980
申请日：2004-08-18
申请人： Hiromasa Fujii , Yasushi Takagi , Yuji Sato
发明人： Hiromasa Fujii , Yasushi Takagi , Yuji Sato
IPC分类号： H04N5/915 , H04N7/18 , H04N19/102 , H04N19/115 , H04N19/134 , H04N19/157 , H04N19/172 , H04N19/189 , H04N19/50 , H04N19/503 , H04N7/26
CPC分类号： H04N19/31 , H04N19/179
摘要： A recording apparatus is provided in which, when image signals are inputted from a plurality of channels and compressed and encoded before being recorded on a medium, the slow-varying-image signals are improved in their quality even if the numbers of bits for the image signals are decreased and they are recorded on the medium for a long time. The image signals inputted are converted into a single-channel image signal, sorted to be a group of a certain number of frames for each channel, and compressed and encoded for each group of a certain number of frames. When an image quality is fixed, the number of bits for the reference image at the encoding time is kept constant, but the number of bits for the difference image at that time is changed.
摘要翻译：提供了一种记录装置，其中当图像信号从多个通道输入并在被记录在介质上之前进行压缩和编码时，即使图像的比特数量，慢变化图像信号也提高了其质量信号减少，并且它们被长时间地记录在介质上。输入的图像信号被转换为单通道图像信号，被分类为每个通道的一定数量的帧的组，并且对于一组数量的帧的每个组进行压缩和编码。当图像质量固定时，编码时的参考图像的位数保持不变，但是此时的差分图像的比特数改变。

78. 发明申请

US20050099936A1 OFDM transmitter and OFDM receiver 有权
标题翻译： OFDM发射机和OFDM接收机
公开(公告)号：US20050099936A1
公开(公告)日：2005-05-12
申请号：US10984976
申请日：2004-11-10
申请人： Hiromasa Fujii , Hirohito Suda
发明人： Hiromasa Fujii , Hirohito Suda
IPC分类号： H04J11/00 , H04L1/00 , H04L27/26
CPC分类号： H04L27/2607 , H04L1/0007
摘要： An OFDM transmitter transmits an OFDM signal by a frame having a plurality of transmission symbol periods constituted of an effective symbol period for transmitting an information bit and a guard interval. The OFDM transmitter includes a guard interval length decider configured to decide a guard interval length in accordance with a feedback signal from an OFDM receiver; and a guard interval length changer configured to change a guard interval length in each transmission symbol period, in accordance with a decided guard interval length without changing a frame length.
摘要翻译： OFDM发射机通过具有由用于发送信息比特和保护间隔的有效符号周期构成的多个发送符号周期的帧发送OFDM信号。所述OFDM发射机包括：保护间隔长度判定器，被配置为根据来自OFDM接收机的反馈信号来确定保护间隔长度; 以及保护间隔长度变更器，被配置为根据确定的保护间隔长度改变每个发送符号周期中的保护间隔长度，而不改变帧长度。

79. 发明授权

US5617535A Recording and playbackk apparatus 失效
标题翻译：录音和播放设备
公开(公告)号：US5617535A
公开(公告)日：1997-04-01
申请号：US978729
申请日：1992-11-19
申请人： Toshiro Aizawa , Shigemitsu Higuchi , Hiromasa Fujii
发明人： Toshiro Aizawa , Shigemitsu Higuchi , Hiromasa Fujii
IPC分类号： G11B5/00 , G11B15/00 , G11B15/02 , G11B19/04 , G11B20/18 , G11B27/34 , G11B27/36 , G11B33/00 , G11B33/10 , H04N5/782 , G06F11/00
CPC分类号： G11B27/34 , G11B15/026 , G11B19/04 , G11B27/36 , H04N5/782
摘要： A recording and playback apparatus for recording and playing back onto and from a magnetic tape and utilizable with a memory card adapted to be mounted onto the apparatus. The memory card is adapted to at least one of store operational characteristics for the apparatus to enable automatic setting of the operational characteristics of the apparatus when mounted and, if the apparatus includes a self-diagnostic information unit, the memory card enables storage of at least self-diagnostic information generated upon occurrence of a trouble during operation of the apparatus. The stored self-diagnostic information enables analyzing of the cause of a cause of the trouble occurring during operation of the apparatus at a time subsequent to the occurrence and taking of countermeasures with respect thereto. If the memory card is not mounted or is in a nonwritable state, the apparatus is provided with a storage device for storing the self-diagnostic information. The memory card also enables storage of other information relating to the apparatus.
摘要翻译：一种记录和播放装置，用于在磁带上记录和播放并且可用于适于安装到设备上的存储卡。存储卡适于装置的存储操作特性中的至少一个，以便能够在安装时自动设置装置的操作特性，并且如果装置包括自诊断信息单元，则存储卡至少能够存储在设备操作期间发生故障时产生的自诊断信息。所存储的自诊断信息能够分析在发生和发生对策之后的时间期间设备操作期间发生故障的原因。如果存储卡未安装或处于不可写状态，则该设备设置有用于存储自诊断信息的存储设备。存储卡还能够存储与该装置有关的其它信息。

80. 发明授权

US08948068B2 Wireless station, interference avoidance method, and system for interference avoidance 有权
标题翻译：无线站，干扰避免方法，以及避免干扰的系统
公开(公告)号：US08948068B2
公开(公告)日：2015-02-03
申请号：US13350079
申请日：2012-01-13
申请人： Hiroki Harada , Hiromasa Fujii , Shunji Miura , Hidetoshi Kayama
发明人： Hiroki Harada , Hiromasa Fujii , Shunji Miura , Hidetoshi Kayama
IPC分类号： H04W72/04 , H04W72/08 , H04W16/14 , H04W72/12
CPC分类号： H04W72/082 , H04W16/14 , H04W72/0406 , H04W72/085 , H04W72/1215
摘要： A wireless station in a second communication system, with at least a portion of a first frequency band used in a first communication system and a portion of a second frequency band used in the second communication system being shared or neighboring, the wireless station including a waveform characteristic quantity extracting unit that extracts a waveform characteristic quantity which shows a statistical characteristic of a signal received from the first communication system; a communication parameter determining unit that determines communication parameters to be used for the wireless station in the second communication system depending on a determination result of whether the extracted waveform characteristic quantity is of a predetermined waveform characteristic quantity for reducing an interference; and a transmission and reception unit that transmits and receives a wireless communication signal in the second communication system in accordance with the determined communication parameters.
摘要翻译：第二通信系统中的无线站，其中在第一通信系统中使用的第一频带的至少一部分和在第二通信系统中使用的第二频带的一部分是共享的或相邻的，所述无线站包括波形特征量提取单元，其提取表示从第一通信系统接收的信号的统计特性的波形特征量; 通信参数确定单元，根据所提取的波形特征量是否是用于减少干扰的预定波形特征量的确定结果，确定第二通信系统中用于无线站的通信参数; 以及发送和接收单元，其根据确定的通信参数在第二通信系统中发送和接收无线通信信号。

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