公开(公告)号：US5907303A

公开(公告)日：1999-05-25

申请号：US873705

申请日：1997-06-12

Applicant: Hideki Yukitomo ,  Mitsuru Uesugi ,  Katsuhiko Hiramatsu

Inventor： Hideki Yukitomo ,  Mitsuru Uesugi ,  Katsuhiko Hiramatsu

IPC: H04L27/22 ,  G01S3/02 ,  G01S3/06 ,  H01Q3/26 ,  H04B7/005 ,  H04B7/08 ,  H04L1/02 ,  G01S3/16

CPC classification number: H01Q3/2605 ,  G01S3/06 ,  H04B7/0845 ,  G01S3/023

Abstract: A CMA-based antenna system is disclosed which shows an improved receiving performance by reducing phase differences in the received signals which have been weighted. The CMA-based antenna system comprises a plurality of antenna, weight circuits, an adder, an error detector and a synthesis controller. The synthesis controller controls the weight circuits so as not only to make the adder output at a preset level but also to cause any differences among the weight circuit outputs not to increase. In order to cope with an error of symbol synchronization and a delayed wave, the CMA-based antenna system may further have a kind of equalizer inserted before the weight circuit in each antenna circuit.

Abstract translation: 公开了一种基于CMA的天线系统，其通过减少已经被加权的接收信号中的相位差来显示改进的接收性能。 基于CMA的天线系统包括多个天线，加权电路，加法器，误差检测器和综合控制器。 合成控制器控制加权电路，不仅使加法器的输出处于预设电平，而且也使得加权电路输出之间的任何差异不增加。 为了应对符号同步和延迟波的误差，基于CMA的天线系统还可以在每个天线电路中的加权电路之前进一步插入一种均衡器。

公开(公告)号：US6147645A

公开(公告)日：2000-11-14

申请号：US53063

申请日：1998-04-01

Applicant: Hideki Yukitomo ,  Katsuhiko Hiramatsu

Inventor： Hideki Yukitomo ,  Katsuhiko Hiramatsu

IPC: H01Q3/26 ,  H01Q3/30 ,  H01Q21/00 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04B7/26 ,  H04W16/28 ,  H04W64/00 ,  G01S3/16 ,  G01S3/28 ,  H04B7/00

CPC classification number: H01Q3/2605 ,  H04B7/086 ,  H04B7/0617 ,  H04W16/28 ,  H04W64/00 ,  H04W64/006

Abstract: By estimating the movement direction of a communication partner, the radiation pattern is forcibly rotated to thereby form a correct radiation pattern. Specifically, an apparatus of the present invention includes reception radiation pattern control section for providing a reception signal from an antenna with a first reception radiation pattern by a first control signal, radiation pattern control section for providing the abovementioned reception signal with a second reception radiation pattern by a second control signal based on an output of movement direction estimating section for estimating a movement direction of a transmitting side, and a reception signal processing system having multiplication section for multiplying the abovementioned reception signal by the first control signal and the second control signal. Consequently, even when the movement speed of the transmitting side or the receiving side is high, by causing a reception radiation pattern controller or a transmission radiation pattern controller to respond to the movement to thereby form a correct radiation pattern, the transmission and reception performance can be improved.

Abstract translation: 通过估计通信伙伴的移动方向，强制旋转辐射图，从而形成正确的辐射图。 具体地说，本发明的装置包括接收辐射图形控制部分，用于通过第一控制信号从天线提供具有第一接收辐射图的接收信号;辐射图控制部分，用于向上述接收信号提供第二接收辐射图 基于用于估计发送侧的移动方向的移动方向估计部的输出的第二控制信号，以及具有乘以上述接收信号与第一控制信号和第二控制信号的乘法部的接收信号处理系统。 因此，即使当发送侧或接收侧的移动速度高时，通过使接收辐射图案控制器或发送辐射图案控制器响应于移动从而形成正确的辐射图，发送和接收性能可以 要改进

公开(公告)号：US06218986B1

公开(公告)日：2001-04-17

申请号：US09599851

申请日：2000-06-23

Applicant: Hideki Yukitomo ,  Katsuhiko Hiramatsu

Inventor： Hideki Yukitomo ,  Katsuhiko Hiramatsu

IPC: H01Q326

CPC classification number: H01Q3/2605 ,  H04B7/0617 ,  H04B7/086 ,  H04W16/28 ,  H04W64/00 ,  H04W64/006

Abstract: By estimating the movement direction of a communication partner, the radiation pattern is forcibly rotated to thereby form a correct radiation pattern. Specifically, an apparatus of the present invention includes reception radiation pattern control section for providing a reception signal from an antenna with a first reception radiation pattern by a first control signal, radiation pattern control section for providing the abovementioned reception signal with a second reception radiation pattern by a second control signal based on an output of movement direction estimating section for estimating a movement direction of a transmitting side, and a reception signal processing system having multiplication section for multiplying the abovementioned reception signal by the first control signal and the second control signal. Consequently, even when the movement speed of the transmitting side or the receiving side is high, by causing a reception radiation pattern controller or a transmission radiation pattern controller to respond to the movement to thereby form a correct radiation pattern, the transmission and reception performance can be improved.

Abstract translation: 通过估计通信伙伴的移动方向，强制旋转辐射图，从而形成正确的辐射图。 具体地说，本发明的装置包括接收辐射图形控制部分，用于通过第一控制信号从天线提供具有第一接收辐射图的接收信号;辐射图控制部分，用于向上述接收信号提供第二接收辐射图 基于用于估计发送侧的移动方向的移动方向估计部的输出的第二控制信号，以及具有乘以上述接收信号与第一控制信号和第二控制信号的乘法部的接收信号处理系统。 因此，即使当发送侧或接收侧的移动速度高时，通过使接收辐射图案控制器或发送辐射图案控制器响应于移动从而形成正确的辐射图，发送和接收性能可以 要改进

公开(公告)号：US06501943B1

公开(公告)日：2002-12-31

申请号：US09485821

申请日：2000-05-01

Applicant: Minako Ide ,  Katsuhiko Hiramatsu ,  Keiji Takausaki ,  Hideki Yukitomo

Inventor： Minako Ide ,  Katsuhiko Hiramatsu ,  Keiji Takausaki ,  Hideki Yukitomo

IPC: H04B100

CPC classification number: H01Q3/2605 ,  H04B7/0613 ,  H04B7/086

Abstract: A diversity receiver estimates a reception weight sing signals received at a plurality of antennas, a target pattern former forms a target radiation pattern based on the estimated reception weight, a transmission pattern former forms a transmission radiation pattern with a transmission weight using an arbitrary transmission weight as an initial value, a controller limits an angle range in which formation of the target radiation pattern and formation of the transmission radiation pattern are executed, an error detector detects an error between the target radiation pattern and the transmission radiation pattern, and subjects the detected error to logarithmic transformation, an updator updates the transmission weight so as to reduce the error subjected to logarithmic transformation, and a directivity former provides a transmission signal with a directivity according to the transmission radiation pattern formed using an updated transmission weight.

Abstract translation: 分集接收机估计在多个天线处接收到的接收权重唱信号，目标图形表示器基于估计的接收权重形成目标辐射图，传输模式形成器使用任意传输权重形成具有传输权重的传输辐射图 作为初始值，控制器限制执行目标辐射图案的形成和发送辐射图案的形成的角度范围，误差检测器检测目标辐射图案与透射辐射图案之间的误差，并对检测到的 错误到对数变换，更新器更新传输权重以减少经过对数变换的误差，并且方向性变换器根据使用更新的传输权重形成的传输辐射图来提供具有方向性的传输信号。

公开(公告)号：US06498804B1

公开(公告)日：2002-12-24

申请号：US09381621

申请日：1999-09-24

Applicant: Minako Ide ,  Sadaki Futagi ,  Katsuhiko Hiramatsu ,  Hideki Yukitomo

Inventor： Minako Ide ,  Sadaki Futagi ,  Katsuhiko Hiramatsu ,  Hideki Yukitomo

IPC: H04L2730

CPC classification number: H04B7/0848

Abstract: When carrying out directive reception using an adaptive array antenna apparatus, a plurality of diversity reception circuits which differ in communication environment follow-up performance are used for reception and the reception output with the best reception quality is selected. The environment follow-up performance of the other non-selected diversity reception circuits is dynamically changed, preferably every time a selection is made by a selector based on the environment follow-up performance of a selected diversity reception circuit.

Abstract translation: 当使用自适应阵列天线装置进行指示接收时，使用通信环境跟随性能不同的多个分集接收电路进行接收，并且选择具有最佳接收质量的接收输出。 动态地改变其他未选择的分集接收电路的环境跟踪性能，优选地，每次基于所选择的分集接收电路的环境跟踪性能，由选择器进行选择时。

公开(公告)号：US06240149B1

公开(公告)日：2001-05-29

申请号：US09052976

申请日：1998-04-01

Applicant: Hideki Yukitomo ,  Katsuhiko Hiramatsu

Inventor： Hideki Yukitomo ,  Katsuhiko Hiramatsu

IPC: H04L102

CPC classification number: H04B7/086 ,  H01Q3/2605 ,  H04B7/0617

Abstract: An adaptive transmission diversity apparatus utilizes a spread spectrum system, detects radiation patterns of direct and indirect waves, which have arrived in a time-shifted manner, by reception radiation pattern controllers. A transmission radiation pattern controller is utilized in accordance with a transmission radiation pattern. The transmission radiation pattern is determined by selecting a pattern from reception radiation patterns obtained by the reception radiation pattern controllers. This can ensure a higher transmission performance.

Abstract translation: 自适应传输分集装置利用扩频系统，通过接收辐射模式控制器检测以时移方式到达的直接和间接波的辐射图。 根据传输辐射图来使用传输辐射图案控制器。 通过从接收辐射图控制器获得的接收辐射图中选择图案来确定发射辐射图。 这可以确保更高的传输性能。

公开(公告)号：US06191736B1

公开(公告)日：2001-02-20

申请号：US09208860

申请日：1998-12-10

Applicant: Hideki Yukitomo ,  Kazuyuki Miya ,  Katsuhiko Hiramatsu ,  Keiji Takakusaki

Inventor： Hideki Yukitomo ,  Kazuyuki Miya ,  Katsuhiko Hiramatsu ,  Keiji Takakusaki

IPC: G01S316

CPC classification number: H04B7/0857

Abstract: Received signal provided via plural antennas 101 are memorized in memory 102. First weight controller 103 calculates the first weights by which the received signals are weighted, and second weight controller 104 calculates the second weights using the received signals. Multipliers 107 and 108 multiply the memorized received signals by the first weights, while multiply the memorized received signals by the second weights when a channel quality of radio signals deteriorates due to a change of the radio signal's direction of arrival Adder 109 synthesizes the multiplication results. Propagation path distortion compensator 110 estimates a deterioration of the channel quality using synthesis result to compensate. Detector 111 detects the compensation result that is used as a parameter to calculate the first and second weights, which allows the apparatus to receive radio signals without deteriorating reception qualities when the channel quality deteriorates rapidly due to the change of the radio signal's direction of arrival.

Abstract translation: 通过多个天线101提供的接收信号被存储在存储器102中。第一加权控制器103计算接收信号被加权的第一加权，第二加权控制器104使用接收信号来计算第二加权。 乘法器107和108将存储的接收信号乘以第一权重，同时当由于无线电信号的到达方向的变化而导致无线电信号的信道质量恶化时，存储的接收信号乘以第二权重。加法器109合成乘法结果。 传播路径失真补偿器110使用合成结果来估计信道质量的恶化以进行补偿。 检测器111检测用作参数的补偿结果，用于计算第一和第二权重，当信道质量由于无线电信号的到达方向的改变而迅速恶化时，允许设备接收无线电信号而不恶化接收质量。

公开(公告)号：US06208701B1

公开(公告)日：2001-03-27

申请号：US08867806

申请日：1997-06-03

Applicant: Katsuhiko Hiramatsu ,  Mitsuru Uesugi ,  Hiroaki Sudo

Inventor： Katsuhiko Hiramatsu ,  Mitsuru Uesugi ,  Hiroaki Sudo

IPC: H04L700

CPC classification number: H04L7/0054 ,  H04L7/0334 ,  H04L7/0337 ,  H04L7/041

Abstract: The synchronizing apparatus includes a block for detecting a code from an input signal, a block for detecting from the code the variable points of the code at several times as high as the symbol rate, a block for calculating a histogram of the detected variables of the code to time, and a block for deciding that the phase number at which the calculated histogram takes the maximum value is a symbol synchronization point. This synchronizing apparatus detects the zero-cross points of an intermediate frequency band signal at N times as high as the symbol rate. It also calculates a histogram of detected time (0 to N−1). The time (0 to N−1) at which the histogram is the maximum within a predetermined detected time is selected as a symbol clock, and thereby symbol synchronization is established.

Abstract translation: 同步装置包括用于从输入信号中检测代码的块，用于从代码中检测代码的可变点数为符号速率的几倍的块，用于计算检测到的变量的直方图的块 代码到时间，以及用于确定计算的直方图获取最大值的相位数的块是符号同步点。 该同步装置检测中间频带信号的零交叉点的N倍于符号率。 它还计算检测时间的直方图（0到N-1）。 选择在预定检测时间内直方图为最大值的时间（0到N-1）作为符号时钟，从而建立符号同步。

公开(公告)号：US6111921A

公开(公告)日：2000-08-29

申请号：US28853

申请日：1998-02-24

Applicant: Hiroaki Sudo ,  Katsuhiko Hiramatsu ,  Mitsuru Uesugi

Inventor： Hiroaki Sudo ,  Katsuhiko Hiramatsu ,  Mitsuru Uesugi

IPC: H04L1/00 ,  H04B1/10 ,  H04J11/00 ,  H04L1/20 ,  H04L27/20

CPC classification number: H04L1/206

Abstract: An estimator of error rate is provided for reducing variations of an error pulse count value at burst signals of a received signal for digital mobile communications and thereby improving an accuracy of estimating an error rate. The estimator of error rate includes detectors for detecting that phase information derived from a baseband signal of an I channel (I signal) and a baseband signal of a Q channel (Q signal) is located in an error pulse generation area, detectors for detecting that envelope information of the I signal and the Q signal is located in the error pulse generation area, and a counter for detecting that the phase error signal and the envelope error signal are outputted and counting the signals. The estimator operates to estimate an error rate based on an error pulse count value at one period. The estimator operates to detect that the phase information and the envelope information are located in the error pulse generation area. This serves to suppress the probability of counting correct signals and reducing variations of a count value at the burst signals, thereby improving an accuracy of estimating an error rate.

Abstract translation: 提供误差率的估计器，用于减少用于数字移动通信的接收信号的脉冲串信号的误差脉冲计数值的变化，从而提高误差率的估计精度。 误差率的估计器包括用于检测从I信道（I信号）的基带信号和Q信道（Q信号）的基带信号导出的相位信息位于误差脉冲产生区域中的检测器，用于检测 I信号和Q信号的包络信息位于误差脉冲产生区域中，并且用于检测相位误差信号和包络误差信号的计数器，并对该信号进行计数。 估计器用于基于一个周期的错误脉冲计数值来估计错误率。 估计器操作以检测相位信息和包络信息位于错误脉冲产生区域中。 这用于抑制对正确信号进行计数并减少脉冲串信号处的计数值的变化的概率，从而提高误差率的估计精度。

公开(公告)号：US06456677B1

公开(公告)日：2002-09-24

申请号：US09709650

申请日：2000-11-13

Applicant: Katsuhiko Hiramatsu ,  Mitsuru Uesugi ,  Hiroaki Sudo

Inventor： Katsuhiko Hiramatsu ,  Mitsuru Uesugi ,  Hiroaki Sudo

IPC: H04L700

CPC classification number: H04L7/0054 ,  H04L7/0334 ,  H04L7/0337 ,  H04L7/041

Abstract: The synchronizing apparatus includes a block for detecting a code from an input signal, a block for detecting from the code the variable points of the code at several times as high as the symbol rate, a block for calculating a histogram of the detected variables of the code to time, and a block for deciding that the phase number at which the calculated histogram takes the maximum value is a symbol synchronization point. This synchronizing apparatus detects the zero-cross points of an intermediate frequency band signal at N times as high as the symbol rate. It also calculates a histogram of detected time (0 to N−1). The time (0 to N−1) at which the histogram is the maximum within a predetermined detected time is selected as a symbol clock, and thereby symbol synchronization is established.

Abstract translation: 同步装置包括用于从输入信号中检测代码的块，用于从代码中检测代码的可变点数为符号速率的几倍的块，用于计算检测到的变量的直方图的块 代码到时间，以及用于确定计算的直方图获取最大值的相位数的块是符号同步点。 该同步装置检测中间频带信号的零交叉点的N倍于符号率。 它还计算检测时间的直方图（0到N-1）。 选择在预定检测时间内直方图为最大值的时间（0到N-1）作为符号时钟，从而建立符号同步。