公开(公告)号：US06864839B2

公开(公告)日：2005-03-08

申请号：US10413421

申请日：2003-04-14

申请人： Hajime Hamada ,  Michiharu Nakamura ,  Yasuyuki Oishi

发明人： Hajime Hamada ,  Michiharu Nakamura ,  Yasuyuki Oishi

IPC分类号： G01S19/25 ,  G01S1/38 ,  G01S3/14 ,  G01S3/46 ,  G01S5/02 ,  H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04W16/28 ,  H04W64/00 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10 ,  G01S5/04

CPC分类号： H04B7/0617 ,  G01S1/38 ,  G01S3/14 ,  G01S3/46 ,  G01S5/0226 ,  H04B7/0626

摘要： Disclosed is a method of controlling direction of radio-wave emission of a base-station transmitter which emits radio waves upon providing the radio waves with directivity in the direction of a receiver. Two antennas of a base station that are disposed at different positions transmit first and second signals that have been spread by mutually orthogonal spreading codes. A mobile station has a phase detector for receiving the first and second signals transmitted from respective ones of the antennas and obtaining a phase difference between these signals, and a direction estimator for calculating the direction of the mobile station, as seen from the base station, based upon the phase difference and for feeding back a signal representing the calculated direction from the mobile station to the base station. The transmitter of the base station transmits data toward the receiver in the calculated direction using a directional antenna.

摘要翻译： 公开了一种在向接收机的方向提供无线电波的基站发射机的无线电波发射的方向上发射无线电波的方法。 设置在不同位置的基站的两个天线发送已经通过相互正交的扩展码扩展的第一和第二信号。 移动站具有相位检测器，用于接收从相应天线发送的第一和第二信号，并获得这些信号之间的相位差，以及用于计算移动站的方向的方向估计器，从基站看， 基于相位差，并将表示所计算的方向的信号从移动台反馈到基站。 基站的发射机使用定向天线在计算出的方向上向接收机发送数据。

公开(公告)号：US20050047521A1

公开(公告)日：2005-03-03

申请号：US10951040

申请日：2004-09-22

申请人： Hiroyoshi Ishikawa ,  Tokuro Kubo ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Hajime Hamada ,  Nobukazu Fudaba ,  Toru Maniwa ,  Hiroyuki Hayashi

发明人： Hiroyoshi Ishikawa ,  Tokuro Kubo ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Hajime Hamada ,  Nobukazu Fudaba ,  Toru Maniwa ,  Hiroyuki Hayashi

IPC分类号： H03F1/32 ,  H04K1/02

CPC分类号： H03F1/3247 ,  H03F2201/3231 ,  H03F2201/3233

摘要： A distortion compensating apparatus calculates a distortion compensation coefficient in such a manner that a difference signal between a reference signal, which is a transmit signal, and a feedback signal will be diminished, updates an old distortion compensation coefficient by the calculated distortion compensation coefficient and applies distortion compensation to the transmit signal based upon this distortion compensation coefficient. In this apparatus, a phase correcting interval, which is for correcting the phase difference between the reference signal and the feedback signal, and a distortion compensation coefficient updating interval are generated alternately, a correction is applied so as to null the phase difference in the phase correcting interval, and the distortion compensation coefficient is updated in the distortion compensation coefficient updating interval.

摘要翻译： 失真补偿装置以这样的方式来计算失真补偿系数，使得作为发送信号的参考信号与反馈信号之间的差信号将被减小，通过计算出的失真补偿系数来更新旧的失真补偿系数并应用 基于该失真补偿系数对发送信号进行失真补偿。 在该装置中，交替地产生用于校正参考信号和反馈信号之间的相位差的相位校正间隔和失真补偿系数更新间隔，进行校正，以使相位中的相位差无效 在失真补偿系数更新间隔中更新失真补偿系数。

公开(公告)号：US06791965B2

公开(公告)日：2004-09-14

申请号：US10272635

申请日：2002-10-17

申请人： Kazuo Nagatani ,  Yasuyuki Oishi ,  Hidenobu Fukumasa ,  Hajime Hamada ,  Yoshihiko Asano

发明人： Kazuo Nagatani ,  Yasuyuki Oishi ,  Hidenobu Fukumasa ,  Hajime Hamada ,  Yoshihiko Asano

IPC分类号： H04B7216

CPC分类号： H04J13/00 ,  H04B1/707 ,  H04B2201/70701 ,  H04B2201/70706 ,  H04J13/0051 ,  H04J13/12

摘要： A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectrum modulated signal. A spread-spectrum modulating unit for each channel includes a phase shifter for shifting, by a predetermined angle channel by channel, the phase of a position vector of the spread-spectrum modulated signal of each channel. As the result of such phase control, the phases of pilot signal portions of the spread-spectrum modulated signals of the respective channels are shifted relative to one another so that the peak values of the code-multiplexed signal can be suppressed.

公开(公告)号：US06657493B2

公开(公告)日：2003-12-02

申请号：US10116633

申请日：2002-04-04

申请人： Takayoshi Ode ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Kazuo Nagatani ,  Hiroyoshi Ishikawa

发明人： Takayoshi Ode ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Kazuo Nagatani ,  Hiroyoshi Ishikawa

IPC分类号： H03F126

CPC分类号： H03F1/3247 ,  H03F1/3294

摘要： A distortion compensation apparatus returns a part of an amplified output signal of a power amplifier amplifying a transmission signal, reads a distortion compensation signal from a distortion compensation table, multiplies the transmission signal with the distortion compensation signal thereof, and inputs the signal to the power amplifier. The distortion compensation signal corresponding to a signal calculated based on an error signal that is a difference between the transmission signal and the amplified output signal, the distortion compensation signal from the distortion compensation table and the step size parameter, and to a power of the transmission signal. The distortion compensation apparatus comprises a &mgr; control part including a fast Fourier transformation part that obtains a spectrum of the amplified output signal, a calculation part that calculates an adjacent channel leakage power ratio based on the spectrum, and a &mgr; adjusting part that varies the step size parameter by comparing the calculated adjacent leakage power ratio with a threshold value.

摘要翻译： 失真补偿装置返回放大发送信号的功率放大器的放大输出信号的一部分，从失真补偿表读出失真补偿信号，将发送信号与其失真补偿信号相乘，并将该信号输入到功率 放大器 对应于基于作为发送信号和放大输出信号之间的差的误差信号，来自失真补偿表的失真补偿信号和步长参数而计算出的信号的失真补偿信号，以及发送功率的失真补偿信号 信号。 失真补偿装置包括：mu控制部，包括获取放大的输出信号的频谱的快速傅里叶变换部，基于该频谱计算相邻信道泄漏功率比的计算部;以及改变步骤的mu调整部 通过将计算的相邻泄漏功率比与阈值进行比较来确定尺寸参数。

公开(公告)号：US06487193B1

公开(公告)日：2002-11-26

申请号：US09378265

申请日：1999-08-20

申请人： Hajime Hamada ,  Yasuyuki Oishi ,  Kazuo Nagatani ,  Michiharu Nakamura ,  Koji Matsuyama

发明人： Hajime Hamada ,  Yasuyuki Oishi ,  Kazuo Nagatani ,  Michiharu Nakamura ,  Koji Matsuyama

IPC分类号： H04B7216

CPC分类号： H04B7/18584

摘要： The present invention is directed to a path searching device and a CDMA receiver employing the same, having a reduced circuit scale and operating to carry out a smaller number of operations. For a direct spreading CDMA communication system, a CDMA receiver includes a reception demodulator including an antenna, a high-frequency amplifier a band-pass filter, demodulators, etc. The CDMA receiver also has despreading units, a determination unit, and a path search device. The path search device has a sampling unit for sampling an input signal by low-speed oversampling based on an integer multiple of a chip rate and by high-speed oversampling that is faster than the low-speed oversampling, a first circuit for finding a correlative value between a spreading code and a signal provided by the low-speed oversampling and finding timing corresponding to a maximum correlative value. A second circuit for finding despreading timing according to correlative values between a signal provided by the high-speed oversampling and a spreading code corresponding to the timing provided by the first circuit.

摘要翻译： 本发明涉及一种路径搜索装置和采用该路径搜索装置的CDMA接收机，其具有减小的电路规模并且操作以执行较少数量的操作。 对于直接扩频CDMA通信系统，CDMA接收机包括接收解调器，包括天线，高频放大器，带通滤波器，解调器等。CDMA接收机还具有解扩单元，确定单元和路径搜索 设备。 路径搜索装置具有采样单元，用于通过基于芯片速率的整数倍的低速过采样和通过比低速过采样快的高速过采样来对输入信号进行采样，用于找到相关的第一电路 扩展码与由对应于最大相关值的低速过采样和寻找定时提供的信号之间的值。 根据由高速过采样提供的信号与对应于由第一电路提供的定时的扩展码之间的相关值，找到解扩定时的第二电路。

公开(公告)号：US06359875B1

公开(公告)日：2002-03-19

申请号：US09084830

申请日：1998-05-26

申请人： Hajime Hamada ,  Yasuyuki Oishi ,  Hidenobu Fukumasa ,  Koji Matsuyama

发明人： Hajime Hamada ,  Yasuyuki Oishi ,  Hidenobu Fukumasa ,  Koji Matsuyama

IPC分类号： H04B7216

CPC分类号： H04B1/707 ,  H04B2201/70707

摘要： A CDMA receiving apparatus receives a direct sequence CDMA signal produced through QPSK spreading modulation, performs coherent detection of the direct sequence CDMA signal, and despreads the signals, obtained through the coherent detection, through a despreading portion. The despreading portion comprises a selector portion. The selector portion selects signals as a demodulated and despread in-phase output signal and a demodulated and despread quadrature output signal, in accordance with despreading codes, from demodulated in-phase and quadrature signals obtained through the coherent detection, and an inverted in-phase and quadrature signals obtained as a result of the signs of the demodulated in-phase and quadrature signals being inverted.

摘要翻译： CDMA接收装置接收通过QPSK扩展调制产生的直接序列CDMA信号，执行直接序列CDMA信号的相干检测，并且通过去扩展部分解调通过相干检测获得的信号。 解扩部分包括选择器部分。 选择器部分根据去扩展码从解调的通过相干检测获得的同相和正交信号中选择信号作为解调和去扩展的同相输出信号和解调和去扩展的正交输出信号，以及反相同相 并且作为被解调的同相和正交信号的符号的结果获得的正交信号被反转。

公开(公告)号：US4861746A

公开(公告)日：1989-08-29

申请号：US148986

申请日：1988-01-27

申请人： Yasuyuki Oishi ,  Akira Inoue

发明人： Yasuyuki Oishi ,  Akira Inoue

IPC分类号： B01J23/847 ,  B01J23/22 ,  B01J23/24 ,  B01J23/74 ,  B01J23/85 ,  B01J23/88 ,  B01J23/882 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  C10G45/04 ,  C10G47/12 ,  C10G47/20

CPC分类号： B01J23/24 ,  B01J23/22 ,  B01J23/74 ,  B01J23/882 ,  B01J35/0006 ,  B01J37/0203 ,  C10G45/04 ,  B01J35/0073 ,  B01J35/1042 ,  B01J35/1061 ,  B01J35/108

摘要： A catalyst for hydrotreating a heavy hydrocarbon oil which comprises a porous refractory inorganic oxide carrier component and at least one hydrogenating active metal component selected from nickel, cobalt and the like, the metal component concentration in the cross-section of the catalyst being the highest between the center of the cross-section and the periphery thereof.

摘要翻译： 一种用于加氢处理重质烃油的催化剂，其包含多孔耐火无机氧化物载体组分和至少一种选自镍，钴等的氢化活性金属组分，催化剂横截面中的金属组分浓度在 横截面的中心及其周边。

公开(公告)号：US4836914A

公开(公告)日：1989-06-06

申请号：US240429

申请日：1988-09-01

申请人： Akira Inoue ,  Masaru Ushio ,  Toru Morita ,  Yasuyuki Oishi ,  Hisao Sakoda

发明人： Akira Inoue ,  Masaru Ushio ,  Toru Morita ,  Yasuyuki Oishi ,  Hisao Sakoda

IPC分类号： C10G32/02 ,  C10G67/02

CPC分类号： C10G32/02 ,  C10G67/02

摘要： The present invention provides a method for removing an iron content in a petroleum series mineral oil therefrom which comprises treating a petroleum series mineral oil fraction containing 5 ppm or more of the iron content by the use of a high gradient magnetic separator under conditions of the strength of a magnetic field being from 500 to 25,000 gauss, a temperature being from room temperature to 400.degree. C., and a linear velocity being 0.1 to 50 cm/second.

摘要翻译： 本发明提供一种从其中除去石油系矿物油中的铁含量的方法，其包括使用高梯度磁选机在强度条件下处理含有5ppm以上铁含量的石油系矿物油馏分 的磁场为500至25,000高斯，温度为室温至400℃，线速度为0.1至50厘米/秒。

公开(公告)号：US4760045A

公开(公告)日：1988-07-26

申请号：US870224

申请日：1986-06-03

申请人： Yasuyuki Oishi ,  Ken Kawakatsu ,  Akira Inoue

发明人： Yasuyuki Oishi ,  Ken Kawakatsu ,  Akira Inoue

IPC分类号： B01J23/16 ,  B01J23/85 ,  B01J35/10 ,  B01J37/02 ,  C10G45/04 ,  B01J23/22 ,  B01J23/28 ,  B01J23/30 ,  B01J23/74

CPC分类号： B01J23/16 ,  B01J23/85 ,  B01J35/0026 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1061 ,  B01J35/108 ,  B01J37/0205 ,  C10G45/04 ,  B01J35/0073

摘要： The present invention provides a catalyst for hydrotreatment of heavy oils in which at least one active metal component for hydrogenation selected from the Groups Vb, VIb and VIII of the periodic table is supported in a porous refractory carrier, the catalyst being characterized in that a distribution of the metal concentrative in each catalyst satisfies the relation of Cr.sub.1 R.sub.2 in the sectional surface of said catalyst, and a method for preparing the catalyst.

摘要翻译： 本发明提供一种用于加氢处理重油的催化剂，其中至少一种选自周期表第Vb，VIb和VIII族的氢化活性金属组分负载在多孔耐火载体中，催化剂的特征在于分布 的每种催化剂中的金属浓度满足在所述催化剂的截面中的R1> R2的情况下的Cr1