公开(公告)号：US07224720B2

公开(公告)日：2007-05-29

申请号：US10625337

申请日：2003-07-22

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

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

IPC分类号： H04B1/69 ,  H03D3/24

CPC分类号： H04B1/7075 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7095 ,  H04B2201/70707

摘要： The present invention reduces the scale of circuitry and shortens the code phase detection time needed to achieve initial synchronization. In a correlator for calculating correlation between a received spreading code contained in a received spread-spectrum signal and a reference spreading code, a combined code generator is included. The combined code generator outputs a combined spreading code by weighting and combining a plurality of phase-shifted reference spreading codes A1–AM. Further, an arithmetic circuit calculates correlation between the received spreading code and the plurality of phase-shifted reference spreading codes simultaneously. A phase detection circuit detects the phase difference between the received spreading code and a reference spreading code, namely the phase of the received spreading code from the results of the arithmetic operation.

摘要翻译： 本发明减小了电路规模，缩短了实现初始同步所需的码相位检测时间。 在用于计算包含在接收扩展频谱信号中的接收扩展码与参考扩展码之间的相关性的相关器中，包括组合码发生器。 组合代码生成器通过加权和组合多个相移参考扩展码A 1 -M M来输出组合的扩展码。 此外，算术电路同时计算接收的扩展码与多个相移参考扩展码之间的相关性。 相位检测电路从算术运算结果检测接收到的扩展码与参考扩展码之间的相位差，即接收到的扩展码的相位。

公开(公告)号：US07030807B2

公开(公告)日：2006-04-18

申请号：US11077065

申请日：2005-03-10

申请人： Kaoru Yokoo ,  Yasuyuki Oishi

发明人： Kaoru Yokoo ,  Yasuyuki Oishi

IPC分类号： G01S13/10 ,  G01S13/93

CPC分类号： G01S13/103

摘要： The invention relates to a radar device for measuring a relative distance to a target. It is an object of the invention to precisely determine the relative distance to the target in a wide range. The radar device according to the invention generates a second pulse by demodulating a signal arriving from a target as a response to a wave signal modulated with a first pulse. The radar device evaluates, as the relative distance to the target, such two different instances that an absolute value of a deviation of a ratio of two instantaneous values of the second pulse from a reference value as a ratio of two instantaneous values of the first pulse is to be minimum. The respective two instantaneous values are with a predetermined interval therebetween on a time axis.

摘要翻译： 本发明涉及一种用于测量与目标的相对距离的雷达装置。 本发明的一个目的是在宽范围内精确地确定与目标的相对距离。 根据本发明的雷达装置通过解调从目标到达的信号作为对用第一脉冲调制的波信号的响应来产生第二脉冲。 雷达装置评估作为到目标的相对距离的两个不同情况，即将第二脉冲的两个瞬时值与参考值的比值的偏差的绝对值作为第一脉冲的两个瞬时值的比率 是最小的。 相应的两个瞬时值在时间轴上具有预定间隔。

公开(公告)号：US20060012527A1

公开(公告)日：2006-01-19

申请号：US10999690

申请日：2004-11-30

申请人： Manabu Kai ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Andrey Andrenko

发明人： Manabu Kai ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Andrey Andrenko

IPC分类号： H01Q1/38 ,  H01Q9/38

CPC分类号： H01Q1/38 ,  G11B23/0042 ,  H01Q1/22 ,  H01Q1/42 ,  H01Q9/0407

摘要： An antenna comprises a dielectric member, an antenna pattern formed on one surface of the dielectric member, and a ground pattern formed on the other surface of the dielectric member. A part or the whole of the antenna is implanted in a dielectric layer on the side from which a laser beam does not come in of an optical recording medium symmetrically having a metal layer reflecting the laser beam and the dielectric layer, thereby to provide a radio tag antenna structure for an optical recording medium which is simple, is small-sized, and can secure necessary reading performance.

摘要翻译： 天线包括介电构件，形成在电介质构件的一个表面上的天线图案，以及形成在电介质构件的另一表面上的接地图案。 将天线的一部分或整体植入介质层，激光束不会从其对称地具有反射激光束和电介质层的金属层的光记录介质入射，从而提供无线电 用于光记录介质的标签天线结构简单，尺寸小，并且可以确保必要的读取性能。

公开(公告)号：US20050226346A1

公开(公告)日：2005-10-13

申请号：US11149730

申请日：2005-06-10

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

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

IPC分类号： H03F1/32 ,  H03F1/34 ,  H03F3/24 ,  H04J1/00 ,  H04J11/00 ,  H04L27/26 ,  H04L27/36 ,  H04L25/03

CPC分类号： H03F1/3247 ,  H03F2201/3233

摘要： Disclosed is a distortion compensating apparatus for correcting the size of a distortion compensation coefficient in such a manner that a transmit signal that has undergone distortion compensation will not exceed the dynamic range of a DA converter. Specifically, before a distortion compensation coefficient hn+1(p) that has been calculated by a calculation unit is stored in a coefficient memory, an assumption is made that distortion compensation will be performed using the distortion compensation coefficient hn+1(p). Then it is determined beforehand whether a signal x(t)*hn+1(p) that will be obtained by this distortion compensation will exceed the limit of a DA converter. If the limit will be exceeded, the size of the distortion compensation coefficient is reduced by a correction unit, the corrected distortion compensation coefficient is stored in the memory and the transmit signal is corrected using the stored distortion compensation coefficient.

摘要翻译： 公开了一种失真补偿装置，用于以经过失真补偿的发送信号不会超过DA转换器的动态范围的方式校正失真补偿系数的大小。 具体地说，在由计算单元计算出的失真补偿系数h N + 1（p）被存储在系数存储器中之前，假定将使用失真补偿执行失真补偿 系数h n + 1（p）。 然后，预先确定将通过该失真补偿获得的信号x（t）* h N + 1（p）将超过DA转换器的极限。 如果超过极限，则通过校正单元来减小失真补偿系数的大小，将校正的失真补偿系数存储在存储器中，并使用所存储的失真补偿系数校正发送信号。

公开(公告)号：US06907085B2

公开(公告)日：2005-06-14

申请号：US09805870

申请日：2001-03-14

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

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

IPC分类号： H03F1/32 ,  H04B1/04 ,  H04L27/00 ,  H04L27/20 ,  H04L27/26 ,  H04B15/00

CPC分类号： H03F1/3247 ,  H03F1/3282 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433

摘要： First, a digital section constituting a linearizer is activated. Then, a feedback loop for updating a distortion compensation coefficient is opened. Then, the analog section on the antenna side is activated from an ADC, including a PA, etc., or a DAC. Then, both the ATT value of an ATT installed in a feedback route for updating the distortion compensation coefficient and the signal delay amount of a signal delay unit are adjusted to make a state such that the distortion compensation coefficient can be accurately updated. Then, the feedback loop is closed, a distortion compensation table having the distortion compensation coefficient as an entry is generated and after the generation is completed, the operation shifts to the normal operation.

摘要翻译： 首先，构成线性化器的数字部分被激活。 然后，打开用于更新失真补偿系数的反馈回路。 然后，天线侧的模拟部分从包括PA等的ADC或DAC激活。 然后，调整安装在用于更新失真补偿系数的反馈路径中的ATT的ATT值和信号延迟单元的信号延迟量，使得能够精确地更新失真补偿系数的状态。 然后，反馈回路闭合，生成具有作为入口的失真补偿系数的失真补偿表，并且在生成完成之后，操作转移到正常操作。

公开(公告)号：US20050101258A1

公开(公告)日：2005-05-12

申请号：US10998283

申请日：2004-11-23

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

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

IPC分类号： H03F1/32 ,  H04K3/00 ,  H04L27/36

CPC分类号： H04L27/368 ,  H03F1/3247 ,  H03F1/3294 ,  H03F2200/447 ,  H03F2201/3233

摘要： A distortion compensation apparatus of the present invention is used in a transmitter that produces and outputs a second signal from a first signal. This apparatus comprises a delay unit for delaying a feedback signal obtained from by the second signal; and a delay control unit for determining a delay quantity of said delay means so that a timing difference between a reference signal obtained from the first signal and the feedback signal delayed by the delay unit is made small. The delay control unit limits the delay quantity within a predetermined limit value.

摘要翻译： 本发明的失真补偿装置用于从第一信号产生并输出第二信号的发送器中。 该装置包括用于延迟由第二信号获得的反馈信号的延迟单元; 以及延迟控制单元，用于确定所述延迟装置的延迟量，使得从第一信号获得的参考信号和由延迟单元延迟的反馈信号之间的定时差变小。 延迟控制单元将延迟量限制在预定极限值内。

公开(公告)号：US20050020310A1

公开(公告)日：2005-01-27

申请号：US10801426

申请日：2004-03-16

申请人： Yuuta Nakaya ,  Takeshi Toda ,  Yasuyuki Oishi ,  Kaoru Yokoo

发明人： Yuuta Nakaya ,  Takeshi Toda ,  Yasuyuki Oishi ,  Kaoru Yokoo

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04B7/26 ,  H04Q7/20

CPC分类号： H01Q3/26 ,  H01Q3/44 ,  H01Q21/245 ,  H04B7/043 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/0848 ,  H04B7/0854

摘要： A MIMO wireless communication system and wireless communication apparatuses are disclosed that increase the practically usable communication channel capacity in the Shannon channel capacity that determines the ratio of maximum signal transmission speed to frequency. Each wireless communication apparatus includes antenna units that transmit and receive radio frequency signals, and a weight controlling unit that provides weights with respect to the antenna units. The antenna units are formed by adaptive array antenna units that can change the directivity by varying weights with respect to antenna elements. The weight controlling unit includes an eigenvalue calculating unit that calculates the eigenvalues of a matrix HH* (H being a channel matrix), an inverse calculation unit that calculates such a channel matrix H′ as to have all eigenvalues within a predetermined range that includes the average value-of the calculated eigenvalues, and a directivity adjusting unit that adjusts the adaptive array antenna directivity so that the current channel matrix H approaches the calculated channel matrix H′.

摘要翻译： 公开了一种MIMO无线通信系统和无线通信装置，其增加了确定最大信号传输速度与频率的比率的香农信道容量中实际可用的通信信道容量。 每个无线通信装置包括发送和接收射频信号的天线单元，以及提供关于天线单元的权重的权重控制单元。 天线单元由自适应阵列天线单元形成，其可以通过相对于天线元件改变权重来改变方向性。 权重控制单元包括计算矩阵HH *（H为信道矩阵）的特征值的特征值计算单元，计算这样的信道矩阵H'以使所有特征值在包括 计算的特征值的平均值，以及调整自适应阵列天线方向性使得当前信道矩阵H接近计算的信道矩阵H'的方向性调整单元。

公开(公告)号：US06717464B2

公开(公告)日：2004-04-06

申请号：US10256833

申请日：2002-09-27

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

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

IPC分类号： H03F126

CPC分类号： H03F1/3241 ,  H03F1/3247 ,  H03F1/3294 ,  H03F2201/3233

摘要： In a distortion compensating apparatus for adaptively compensating a non-linear distortion of a circuit having the non-linear distortion, an adaptive equalizing processor adaptively selects, from among a filter coefficient group preliminarily held in a memory, a filter coefficient which makes an out-of-band power of an output signal reduced to be set in a digital filter.

摘要翻译： 在用于自适应地补偿具有非线性失真的电路的非线性失真的失真补偿装置中，自适应均衡处理器从预先保持在存储器中的滤波器系数组中自适应地选择滤波器系数， 输出信号的带内功率减少以设置在数字滤波器中。

公开(公告)号：US06563859B1

公开(公告)日：2003-05-13

申请号：US09440341

申请日：1999-11-15

申请人： Yasuyuki Oishi ,  Michiharu Nakamura ,  Kazuo Nagatani ,  Hajime Hamada ,  Yoshihiko Asano

发明人： Yasuyuki Oishi ,  Michiharu Nakamura ,  Kazuo Nagatani ,  Hajime Hamada ,  Yoshihiko Asano

IPC分类号： H04B1707

CPC分类号： H04B1/7115 ,  H04B1/692 ,  H04L5/026 ,  H04L27/2647

摘要： A multi-carrier signal received by an antenna is converted into a signal of an IF band by an RX, and converted into an I signal and a Q signal by an quadrature detector. The I signal and the Q signal as multi-carrier signals are converted into digital signals by an A/D converter, and input to complex filters. The complex filters extract a complex signal having a specified carrier. Then, complex filters shift the center frequency of the extracted complex signal into 0 Hz. The obtained base band signal is input to a finger, and despread and demodulated. The despread and demodulated signal is RAKE synthesized by a synthesis unit, and transmitted to a signal discrimination unit.

摘要翻译： 由天线接收的多载波信号通过RX被转换为IF频带的信号，并由正交检波器转换为I信号和Q信号。 作为多载波信号的I信号和Q信号由A / D转换器转换成数字信号，并输入到复数滤波器。 复数滤波器提取具有指定载波的复信号。 然后，复数滤波器将提取的复信号的中心频率移动到0Hz。 所获得的基带信号被输入到手指，并被解扩和解调。 解扩信号由合成单元RAKE合成，发送到信号鉴别单元。

公开(公告)号：US6009090A

公开(公告)日：1999-12-28

申请号：US872362

申请日：1997-06-10

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

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

IPC分类号： H04J11/00 ,  H04B1/707 ,  H04J13/00 ,  H04B7/216 ,  H04B15/00

CPC分类号： H04B1/707 ,  H04B2201/70706

摘要： A code multiplexing wireless apparatus for amplifying a code-multiplexed signal and then transmitting the amplified signal includes the following to reduce output back-off, improve the efficiency of a power amplifier and suppress broadening of the frequency spectrum: (1) a code-multiplexed signal generator for multiplying each item of transmission data by a spreading code sequence and combining spread-spectrum modulated signals to generate a code-multiplexed signal, (2) a signal-peak suppressing unit for holding the envelope of the code-multiplexed signal below a set level, and (3) a power amplifier for amplifying the code-multiplexed signal and transmitting the amplified code-multiplexed signal from an antenna.

摘要翻译： 用于放大代码多路复用信号然后发送放大信号的代码复用无线装置包括以下以减少输出回退，提高功率放大器的效率并抑制频谱的扩展：（1）码复用 信号发生器，用于将每个发送数据项乘以扩展码序列，并组合扩频调制信号以产生码复用信号;（2）信号峰值抑制单元，用于将码复用信号的包络保持在低于 设置电平，以及（3）功率放大器，用于放大代码复用信号并从天线发送放大的码复用信号。