公开(公告)号：US07268564B2

公开(公告)日：2007-09-11

申请号：US10784928

申请日：2004-02-25

申请人： Akihiro Ozaki ,  Koichi Ogawa ,  Yoshio Koyanagi ,  Yutaka Saito ,  Shoichi Kajiwara ,  Yoshitaka Asayama ,  Atsushi Yamamoto

发明人： Akihiro Ozaki ,  Koichi Ogawa ,  Yoshio Koyanagi ,  Yutaka Saito ,  Shoichi Kajiwara ,  Yoshitaka Asayama ,  Atsushi Yamamoto

IPC分类号： G01R29/08 ,  H01Q17/00

CPC分类号： G01R29/0857 ,  G01R29/0878

摘要： In an apparatus for measuring a specific absorption rate (SAR), a first near magnetic field distribution of a radio wave radiated from an array antenna of a reference antenna including a plurality of minute antennas is measured, and an SAR distribution with respect to the radio wave radiated from the array antenna is measured with a predetermined phantom. Then a distribution of a transformation coefficient α is calculated by dividing the measured SAR distribution by a square of the measured first near magnetic field distribution, a second near magnetic field distribution of a radio wave radiated from a measured radio communication apparatus is measured, and an SAR distribution with respect to the radio wave radiated from the radio communication apparatus is calculated by multiplying a square of the measured second near magnetic field distribution by the calculated distribution of the transformation coefficient α.

摘要翻译： 在用于测量比吸收率（SAR）的装置中，测量从包括多个分天线的参考天线的阵列天线辐射的无线电波的第一近场磁场分布，并且相对于无线电的SAR分布 用预定的体模测量从阵列天线辐射的波。 然后，通过将测得的SAR分布除以被测量的第一近场磁场分布的平方来计算变换系数α的分布，测量从测量的无线电通信装置辐射的无线电波的第二近场磁场分布，并且 通过将测量的第二近场磁场分布的平方乘以所计算的变换系数α的分布来计算相对于从无线电通信装置辐射的无线电波的SAR分布。

公开(公告)号：US06919845B2

公开(公告)日：2005-07-19

申请号：US10419813

申请日：2003-04-22

申请人： Akihiro Ozaki ,  Koichi Ogawa ,  Yoshio Koyanagi ,  Yutaka Saito ,  Shoichi Kajiwara ,  Yoshitaka Asayama ,  Atsushi Yamamoto

发明人： Akihiro Ozaki ,  Koichi Ogawa ,  Yoshio Koyanagi ,  Yutaka Saito ,  Shoichi Kajiwara ,  Yoshitaka Asayama ,  Atsushi Yamamoto

IPC分类号： G01R29/08 ,  H04B1/38 ,  H02J1/00 ,  G01N22/00 ,  H03C1/52

CPC分类号： G01R29/0857 ,  G01R29/0814 ,  H04B1/3838

摘要： In an apparatus for measuring a specific absorption rate (SAR) for use in a radio apparatus, a first near magnetic field of a radio wave radiated from a reference radio apparatus is measured in free space, and an SAR of the radio wave radiated from the reference radio apparatus by using a predetermined phantom according to a predetermined measurement method. A transformation factor α is calculated by dividing the measured SAR by a square value of the measured first near magnetic field, and a second near magnetic field of a radio wave radiated from a radio apparatus to be measured is measured in free space. Then an SAR of the radio wave radiated from the radio apparatus to be measured is estimated and calculated by multiplying a square value of the measured second near magnetic field by the calculated transformation factor α.

摘要翻译： 在无线电设备中用于测量特定吸收率（SAR）的设备中，在自由空间中测量从参考无线电设备辐射的无线电波的第一近似磁场，并且从所述无线电设备辐射的无线电波的SAR 参考无线电设备，根据预定的测量方法使用预定的体模。 通过将测量的SAR除以测量的第一近似磁场的平方值，并且在自由空间中测量从待测量的无线电设备辐射的无线电波的第二近似磁场来计算变换因子α。 然后通过将测量的第二近似磁场的平方值乘以计算出的变换因子α来估计和计算从待测量的无线电设备辐射的无线电波的SAR。

公开(公告)号：US07439918B2

公开(公告)日：2008-10-21

申请号：US11294524

申请日：2005-12-06

申请人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Yoshio Koyanagi

发明人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Yoshio Koyanagi

IPC分类号： H01Q1/24

CPC分类号： H04B7/0845 ,  H01Q3/2611

摘要： An adaptive antenna apparatus includes antenna elements. One of the antenna elements has an electrical length L1 larger than λ/2, and equal to or smaller than a predetermined upper-limit wavelength, where λ is a wavelength of a radio signal. Another antenna element has an electrical length L2 equal to or larger than a predetermined lower-limit wavelength and equal to or smaller than λ/2. A controller adaptive-controls the adaptive antenna apparatus to form a radiation pattern of the adaptive antenna apparatus including a plurality of nulls substantively in a direction of an interference wave by adjusting at least one of an amplitude and a phase of each radio signal received by the first and second antenna elements.

摘要翻译： 自适应天线装置包括天线元件。 天线元件之一具有大于λ/ 2的电长度L 1，并且等于或小于预定的上限波长，其中λ是无线电信号的波长。 另一个天线元件的电长度L 2等于或大于预定的下限波长并且等于或小于λ/ 2。 控制器自适应控制自适应天线装置，以通过调整由干扰波方向接收的每个无线电信号的幅度和相位中的至少一个来形成在干扰波的方向上实质上包括多个零点的自适应天线装置的辐射图案 第一和第二天线元件。

公开(公告)号：US20090221253A1

公开(公告)日：2009-09-03

申请号：US12282954

申请日：2007-03-15

申请人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

发明人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

IPC分类号： H04B7/00 ,  H04B1/06 ,  G05B13/02 ,  G01R29/26

CPC分类号： H04B7/0851

摘要： In the adaptive control apparatus, a computation unit computes weighting coefficients, using a first adaptive control method in a proportion α of a first computation amount, where the first adaptive control method has a first convergence rate and a first convergence error. Further, a computation unit computes weighting coefficients from initial values of the weighting coefficients computed by the computation unit, using a second adaptive control method in a proportion (1−α) of a second computation amount, where the second adaptive control method has a second convergence rate slower than the first convergence rate and a second convergence error smaller than the first convergence error. A controller controls determination of a ratio α/(1-α) based on a moving speed of a mobile unit, and controls the computation units to perform computing processes.

摘要翻译： 在自适应控制装置中，计算单元使用第一自适应控制方法具有第一收敛速度和第一收敛误差的第一计算量的比例α来使用第一自适应控制方法来计算加权系数。 此外，计算单元使用第二自适应控制方法以第二计算量的比例（1-α）计算由计算单元计算的加权系数的初始值的加权系数，其中第二自适应控制方法具有第二 收敛速度比第一收敛速度慢，第二收敛误差小于第一收敛误差。 控制器基于移动单元的移动速度来控制α/（1-α）比率的确定，并且控制计算单元执行计算处理。

公开(公告)号：US07502592B2

公开(公告)日：2009-03-10

申请号：US11315329

申请日：2005-12-23

申请人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

发明人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

IPC分类号： H04B1/00

CPC分类号： H04B7/0848

摘要： An adaptive antenna apparatus including a reception adaptive control circuit is provided. The reception adaptive control circuit adaptively controls respective received signals received by a plurality of antenna elements, and outputs the adaptively-controlled received signals as a combined received signal. A demodulator demodulates the combined received signal to a demodulated signal, and demodulates the respective received signals separately received by the respective antenna elements to demodulated signals. A controller compares signal quality of the demodulated signal of the combined received signal with signal qualities of the demodulated signals of the respective received signals separately received by the respective antenna elements, respectively, selects a demodulated signal having the highest signal quality, and controls to receive a received signal including a selected demodulated signal.

摘要翻译： 提供一种包括接收自适应控制电路的自适应天线装置。 接收自适应控制电路自适应地控制由多个天线元件接收的各个接收信号，并且将自适应控制的接收信号作为组合的接收信号输出。 解调器将组合的接收信号解调为解调信号，并将由各个天线元件接收的各个接收信号解调为解调信号。 控制器将组合的接收信号的解调信号的信号质量与由各个天线单元分别接收的相应接收信号的解调信号的信号质量分别进行比较，选择具有最高信号质量的解调信号，并控制接收 包括所选择的解调信号的接收信号。

公开(公告)号：US20060246953A1

公开(公告)日：2006-11-02

申请号：US11401267

申请日：2006-04-11

申请人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

发明人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

IPC分类号： H04B1/02 ,  H04M1/00 ,  H04B7/02

CPC分类号： H04B7/0857 ,  H01Q3/2629 ,  H04B7/0814 ,  H04B17/318

摘要： An adaptive antenna apparatus includes two antenna elements and a parasitic element to which a variable reactance element is connected, and selects an adaptive control processing according to detected signal quality. A controller executes a first adaptive control processing for adaptively controlling respective received signals received by the respective antenna elements and outputting the respective received signals after the adaptive control as a combined received signal, and executes a second adaptive control processing for reactance controlling an element value of the variable reactance element. The controller executes the first adaptive control processing. The controller executes a communication processing when the detected signal quality is equal to or larger than a predetermined threshold. The controller executes the second adaptive control processing when the detected signal quality is not equal to or larger than the threshold.

摘要翻译： 自适应天线装置包括两个天线元件和连接可变电抗元件的寄生元件，并且根据检测到的信号质量选择自适应控制处理。 控制器执行第一自适应控制处理，用于自适应地控制由各个天线元件接收的各个接收信号，并在自适应控制之后输出相应的接收信号作为组合的接收信号，并且执行第二自适应控制处理，用于电抗控制元件值 可变电抗元件。 控制器执行第一自适应控制处理。 当所检测的信号质量等于或大于预定阈值时，控制器执行通信处理。 当所检测的信号质量不等于或大于阈值时，控制器执行第二自适应控制处理。

公开(公告)号：US08457582B2

公开(公告)日：2013-06-04

申请号：US12282954

申请日：2007-03-15

申请人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

发明人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

IPC分类号： H04B1/06

CPC分类号： H04B7/0851

摘要： In the adaptive control apparatus, a computation unit computes weighting coefficients, using a first adaptive control method in a proportion α of a first computation amount, where the first adaptive control method has a first convergence rate and a first convergence error. Further, a computation unit computes weighting coefficients from initial values of the weighting coefficients computed by the computation unit, using a second adaptive control method in a proportion (1−α) of a second computation amount, where the second adaptive control method has a second convergence rate slower than the first convergence rate and a second convergence error smaller than the first convergence error. A controller controls determination of a ratio α/(1-α) based on a moving speed of a mobile unit, and controls the computation units to perform computing processes.

摘要翻译： 在自适应控制装置中，计算单元使用第一自适应控制方法具有第一收敛速度和第一收敛误差的第一计算量的比例α来使用第一自适应控制方法来计算加权系数。 此外，计算单元使用第二自适应控制方法以第二计算量的比例（1-α）计算由计算单元计算的加权系数的初始值的加权系数，其中第二自适应控制方法具有第二 收敛速度比第一收敛速度慢，第二收敛误差小于第一收敛误差。 控制器基于移动单元的移动速度来控制α/（1-α）比率的确定，并且控制计算单元执行计算处理。

公开(公告)号：US07324047B2

公开(公告)日：2008-01-29

申请号：US11401267

申请日：2006-04-11

申请人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

发明人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

IPC分类号： H01Q3/28 ,  H01Q3/30

CPC分类号： H04B7/0857 ,  H01Q3/2629 ,  H04B7/0814 ,  H04B17/318

摘要： An adaptive antenna apparatus includes two antenna elements and a parasitic element to which a variable reactance element is connected, and selects an adaptive control process according to detected signal quality. A controller executes a first adaptive control process for adaptively controlling respective signals received by the respective antenna elements and outputting the respective signals after the adaptive control as a combined received signal, and executes a second adaptive control process for reactance controlling an element value of the variable reactance element. The controller executes the first adaptive control process. The controller executes a communication process when the detected signal quality is equal to or larger than a predetermined threshold. The controller executes the second adaptive control process when the detected signal quality is not equal to or larger than the threshold.

摘要翻译： 自适应天线装置包括两个天线元件和连接可变电抗元件的寄生元件，并根据检测到的信号质量选择自适应控制处理。 控制器执行第一自适应控制处理，用于自适应地控制由各个天线元件接收的相应信号，并将自适应控制之后的各个信号作为组合的接收信号输出，并且执行第二自适应控制处理以进行电抗控制， 电抗元件 控制器执行第一自适应控制过程。 当所检测的信号质量等于或大于预定阈值时，控制器执行通信处理。 当检测到的信号质量不等于或大于阈值时，控制器执行第二自适应控制处理。

公开(公告)号：US20070010202A1

公开(公告)日：2007-01-11

申请号：US11315329

申请日：2005-12-23

申请人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

发明人： Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai ,  Yoshio Koyanagi ,  Akira Kato

IPC分类号： H04B1/00

CPC分类号： H04B7/0848

摘要： An adaptive antenna apparatus including a reception adaptive control circuit is provided. The reception adaptive control circuit adaptively controls respective received signals received by a plurality of antenna elements, and outputs the adaptively-controlled received signals as a combined received signal. A demodulator demodulates the combined received signal to a demodulated signal, and demodulates the respective received signals separately received by the respective antenna elements to demodulated signals. A controller compares signal quality of the demodulated signal of the combined received signal with signal qualities of the demodulated signals of the respective received signals separately received by the respective antenna elements, respectively, selects a demodulated signal having the highest signal quality, and controls to receive a received signal including a selected demodulated signal.

摘要翻译： 提供一种包括接收自适应控制电路的自适应天线装置。 接收自适应控制电路自适应地控制由多个天线元件接收的各个接收信号，并且将自适应控制的接收信号作为组合的接收信号输出。 解调器将组合的接收信号解调为解调信号，并将由各个天线元件接收的各个接收信号解调为解调信号。 控制器将组合的接收信号的解调信号的信号质量与由各个天线单元分别接收的相应接收信号的解调信号的信号质量进行比较，选择具有最高信号质量的解调信号，并且控制接收 包括所选择的解调信号的接收信号。

公开(公告)号：US20060232483A1

公开(公告)日：2006-10-19

申请号：US11294524

申请日：2005-12-06

申请人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Yoshio Koyanagi

发明人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Yoshio Koyanagi

IPC分类号： H01Q1/24

CPC分类号： H04B7/0845 ,  H01Q3/2611

摘要： An adaptive antenna apparatus includes antenna elements. One of the antenna elements has an electrical length L1 larger than λ/2, and equal to or smaller than a predetermined upper-limit wavelength, where λ is a wavelength of a radio signal. Another antenna element has an electrical length L2 equal to or larger than a predetermined lower-limit wavelength and equal to or smaller than λ/2. A controller adaptive-controls the adaptive antenna apparatus to form a radiation pattern of the adaptive antenna apparatus including a plurality of nulls substantively in a direction of an interference wave by adjusting at least one of an amplitude and a phase of each radio signal received by the first and second antenna elements.

摘要翻译： 自适应天线装置包括天线元件。 天线元件之一具有大于λ/ 2的电长度L 1，并且等于或小于预定的上限波长，其中λ是无线电信号的波长。 另一个天线元件的电长度L 2等于或大于预定的下限波长并且等于或小于λ/ 2。 控制器自适应控制自适应天线装置，以通过调整由干扰波方向接收的每个无线电信号的幅度和相位中的至少一个来形成在干扰波的方向上实质上包括多个零点的自适应天线装置的辐射图案 第一和第二天线元件。