公开(公告)号：US08036299B2

公开(公告)日：2011-10-11

申请号：US12090224

申请日：2006-10-05

申请人： Hiroaki Takano

发明人： Hiroaki Takano

IPC分类号： H04L1/02 ,  H04B7/02

CPC分类号： H04B7/08 ,  H04B7/0689 ,  H04B7/0871 ,  H04B17/21 ,  H04J15/00 ,  H04L25/0204 ,  H04L27/2601

摘要： Reversibility in the directivity in the event of transmission/reception through a multi-antenna system is well suitably compensated for by executing self-calibration. A branch is set to a reference branch, and a forward loopback transfer function and a backward loopback transfer function are acquired, whereby per-branch calibration factors are calculated. Subsequently, an other branch is set to a reference branch, and calibration factors are calculated in a similar manner. Then, the calibration factor for the reference branch is corrected in accordance with the secondly obtained calibration factor so that a calibration condition is satisfied.

摘要翻译： 通过多天线系统进行发送/接收时的方向性的可逆性通过执行自校准而得到适当的补偿。 分支被设置为参考分支，并且获取前向环回传递函数和反向回送传递函数，由此计算每个分支校准因子。 随后，将另一个分支设置为参考分支，并以类似的方式计算校准因子。 然后，根据第二获得的校准因子校正参考分支的校准因子，从而满足校准条件。

公开(公告)号：US08000421B2

公开(公告)日：2011-08-16

申请号：US11119465

申请日：2005-05-02

申请人： Hiroaki Takano ,  Shinichi Kuroda

发明人： Hiroaki Takano ,  Shinichi Kuroda

IPC分类号： H04B1/10

CPC分类号： H04L1/0631 ,  H04B7/02 ,  H04B7/0613 ,  H04B7/0842 ,  H04B7/0891 ,  H04L1/0026 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/442 ,  Y02D70/444

摘要： Communication operation is performed with enhanced transmission efficiency by obtaining enhanced communication capacity through optimal allocation of transmission powers to individual MIMO channels obtainable by spatial multiplexing. A transmitter has a plurality of transmission antennas and a receiver has a plurality of reception antennas and perform spatial multiplex communication through transmission and reception with individual antenna weights being set. The transmitter varies the power allocation in units of a communication channel in correspondence to communication quality of the channel. The receiver uses a power allocation value of each communication channel that is estimated in accordance with a reception power of a pilot carrier included in user data after spatially separated. Thereby, the receiver returns the magnitude of the amplitude of a received signal in the signal spacing to an original magnitude, and performs an accurate demapping process.

摘要翻译： 通过通过对通过空间复用获得的各个MIMO信道的发送功率的最佳分配获得增强的通信容量，来提高传输效率。 发射机具有多个发射天线，并且接收机具有多个接收天线，并且通过发送和接收执行具有各个天线权重的空间复用通信。 发射机根据信道的通信质量改变通信信道单元的功率分配。 接收机使用在空间分离之后根据用户数据中包括的导频载波的接收功率估计的每个通信信道的功率分配值。 因此，接收器将信号间隔中的接收信号的幅度的大小返回到原始幅度，并且执行精确的解映射处理。

公开(公告)号：US20100026561A1

公开(公告)日：2010-02-04

申请号：US12492679

申请日：2009-06-26

申请人： Hiroaki Takano ,  Seiichi Izumi ,  Shinichi Kuroda ,  Tomoya Yamaura

发明人： Hiroaki Takano ,  Seiichi Izumi ,  Shinichi Kuroda ,  Tomoya Yamaura

IPC分类号： G01S7/40

CPC分类号： H01Q3/267 ,  H01Q3/2605 ,  H04B17/14 ,  H04B17/21

摘要： A wireless commutation device includes: an antenna unit including antennas transmitting and receiving wireless signals; an analog processing unit including transmitting analog circuits and receiving analog circuits processing analog transmitting and received signals; a digital processing unit processing digital transmitting and received signals; an inter-antenna propagation loss determination unit determining propagation losses between the antennas; a loopback transfer function gain acquisition unit acquiring, through loopback of a calibration signal between the antennas, gains of loopback transfer functions between antenna branches; a loopback transfer function gain correction unit correcting the gains by using the propagation losses; a correction coefficient determination unit determining the respective gain ratios among the receiving analog circuits and the transmitting analog circuits by using the corrected gains, and determining correction coefficients by using the gain ratios; and a gain calibration processing unit performing gain calibration on the digital transmitting and received signals by using the correction coefficients.

摘要翻译： 无线换向装置包括：天线单元，包括发射和接收无线信号的天线; 模拟处理单元，包括发送模拟电路和接收处理模拟发送和接收信号的模拟电路; 处理数字发送和接收信号的数字处理单元; 天线间传播损耗确定单元，确定天线之间的传播损耗; 环回传递函数增益获取单元通过天线之间的校准信号的环回获取天线分支之间的环回传递函数的增益; 环回传递函数增益校正单元，通过使用传播损耗来校正增益; 校正系数确定单元，通过使用所述校正后的增益来确定所述接收模拟电路和所述发送模拟电路之间的各增益比，以及通过使用所述增益比确定校正系数; 以及增益校准处理单元，通过使用校正系数对数字发送和接收信号执行增益校准。

公开(公告)号：US20100008407A1

公开(公告)日：2010-01-14

申请号：US12483363

申请日：2009-06-12

申请人： Seiichi IZUMI ,  Hiroaki Takahashi ,  Hiroaki Takano ,  Tomoya Yamaura

发明人： Seiichi IZUMI ,  Hiroaki Takahashi ,  Hiroaki Takano ,  Tomoya Yamaura

IPC分类号： H04B1/38

CPC分类号： H04B17/21 ,  H04B7/0848

摘要： There is provided a communication apparatus, including a transmission unit that transmits information by a plurality of systems and a reception unit that receives information by a plurality of systems, wherein the transmission unit includes a calibration information generation unit that generates calibration information transmitted for each the system and a calibration information generation notification generation unit that generates a calibration information generation notification indicating that the calibration information has been generated by the calibration information generation unit for each system, and the reception unit includes a calibration information detection unit that starts measurement of time based on reception of the calibration information generation notification and detecting calibration information turned back by the transmission unit for each system after a fixed time passes after starting measurement of time.

摘要翻译： 提供了一种通信装置，包括由多个系统发送信息的发送单元和由多个系统接收信息的接收单元，其中，所述发送单元包括校准信息生成单元，其生成针对每个系统发送的校准信息 系统和校准信息生成通知生成单元，其生成表示每个系统的校准信息生成单元生成了校准信息的校准信息生成通知，并且接收单元包括校准信息检测单元，其开始基于时间的测量 在开始测量时间之后经过固定时间之后，接收校准信息生成通知并检测由每个系统的发送单元所转回的校准信息。

公开(公告)号：US20090323591A1

公开(公告)日：2009-12-31

申请号：US12492746

申请日：2009-06-26

申请人： Hiroaki Takahashi ,  Tomoya Yamaura ,  Shinichi Kuroda ,  Hiroaki Takano

发明人： Hiroaki Takahashi ,  Tomoya Yamaura ,  Shinichi Kuroda ,  Hiroaki Takano

IPC分类号： H04W4/00

CPC分类号： H04L7/042

摘要： A receiving apparatus is provided which includes a receiving unit to receive a radio signal, a transfer function estimation unit to estimate a transfer function of a communication path of the radio signal, and a cross-correlation calculation unit to calculate cross-correlation between a synchronous signal contained in a radio signal received by the receiving unit and a known synchronous signal multiplied by the transfer function estimated by the transfer function estimation unit.

摘要翻译： 提供一种接收装置，其包括：接收单元，用于接收无线电信号;传递函数估计单元，用于估计无线电信号的通信路径的传递函数;以及互相关计算单元，用于计算同步 由接收单元接收的无线电信号中包含的信号和乘以由传递函数估计单元估计的传递函数的已知同步信号。

公开(公告)号：US20090305629A1

公开(公告)日：2009-12-10

申请号：US12473404

申请日：2009-05-28

申请人： Seiichi Izumi ,  Hiroaki Takano ,  Ryou Sawai ,  Tomoya Yamaura ,  Masanori Sato

发明人： Seiichi Izumi ,  Hiroaki Takano ,  Ryou Sawai ,  Tomoya Yamaura ,  Masanori Sato

IPC分类号： H04B7/24 ,  H04B1/06

CPC分类号： H04B7/084

摘要： There is provided a receiving apparatus including a plurality of antennas, a phase difference detection unit to detect a phase difference of each of a plurality of received signals received by the plurality of antennas, a phase adjustment unit to align phase of the plurality of received signals based on the phase difference detected by the phase difference detection unit, an adding unit to add the plurality of received signals with the phase aligned by the phase adjustment unit together, and a synchronous detection unit to perform synchronous detection using a signal obtained by addition in the adding unit.

摘要翻译： 提供了一种包括多个天线的接收装置，相位差检测单元，用于检测由多个天线接收的多个接收信号中的每一个的相位差;相位调整单元，用于调整多个接收信号的相位 基于由所述相位差检测单元检测出的相位差，添加单元，将由所述相位调整单元相位对准的所述多个接收信号相加在一起;同步检测单元，使用通过加法获得的信号进行同步检测; 添加单元。

公开(公告)号：US07477695B2

公开(公告)日：2009-01-13

申请号：US11050731

申请日：2005-02-07

申请人： Hiroaki Takano

发明人： Hiroaki Takano

IPC分类号： H04L23/02 ,  H03C7/02

CPC分类号： H04B7/0634 ,  H04B7/0417

摘要： An SVD-MIMO transmission compresses the amount of information to be fed back to a transmitter from a receiver. The transmitter and the receiver share a representation form of (amplitude, phase) for representing data to be transmitted, i.e., a form of converting real data into complex data. In other words, transmitted data is allocated to a signal point in the signal space corresponding to the data value for data transmission. The data receiver extracts an original data value according to a combination of amplitude and phase at a received signal point. The receiver can compress the information amount of transmission data.

摘要翻译： SVD-MIMO传输从接收机压缩要反馈到发射机的信息量。 发射机和接收机共享用于表示要发射的数据的（幅度，相位）的表示形式，即将实际数据转换成复数据的形式。 换句话说，发送的数据被分配给与用于数据传输的数据值相对应的信号空间中的信号点。 数据接收器根据接收信号点的幅度和相位的组合提取原始数据值。 接收机可以压缩传输数据的信息量。

公开(公告)号：US07436995B2

公开(公告)日：2008-10-14

申请号：US11034311

申请日：2005-01-12

申请人： Tsukasa Ito ,  Jun Minakuti ,  Takeshi Nakajima ,  Hiroaki Takano

发明人： Tsukasa Ito ,  Jun Minakuti ,  Takeshi Nakajima ,  Hiroaki Takano

IPC分类号： G06K9/00

CPC分类号： G06K9/00 ,  H04N1/6088

摘要： An image processing apparatus for converting photographed image data representing a scene luminance into visual image data representing a visual image, comprises a data analyzing section to obtain a viewing condition to view a visual image, to analyze the photographed image data, and to obtain an image converting condition and a viewing condition parameter for a color management employing a color appearance model on the basis of the analysis result of the photographed image data and the viewing condition for the visual image; an image converting section to convert the photographed image data on the basis of the image converting condition obtained by the data analyzing section so as to produce the visual image data; and a formatting section to attach the viewing condition parameter to the visual image data produced by the image converting section and to output the visual image data attached with the viewing condition parameter.

摘要翻译： 一种用于将表示场景亮度的拍摄图像数据转换为表示视觉图像的视觉图像数据的图像处理装置包括：数据分析部，用于获取观看视觉图像的观看条件，分析拍摄的图像数据，并获得图像 基于所拍摄的图像数据的分析结果和视觉图像的观看条件，使用颜色外观模型的颜色管理的转换条件和观看条件参数; 图像转换部分，用于基于由数据分析部分获得的图像转换条件转换所拍摄的图像数据，以产生视觉图像数据; 以及格式化部分，用于将观看条件参数附加到由图像转换部分生成的视觉图像数据，并输出附加有观看条件参数的视觉图像数据。

公开(公告)号：US07324702B2

公开(公告)日：2008-01-29

申请号：US10647646

申请日：2003-08-25

申请人： Hiroaki Takano ,  Tsukasa Ito ,  Chizuko Ikeda

发明人： Hiroaki Takano ,  Tsukasa Ito ,  Chizuko Ikeda

IPC分类号： B06K9/40 ,  G03F3/08

CPC分类号： H04N1/603

摘要： An image processing method for subjecting captured-image data outputting from an image-capturing device to an optimization processing for appreciation to produce viewing image referred image data. The image processing method has the step of conducting a pre-processing before the optimization processing is carried out, wherein the pre-processing includes the transformation of the frequency characteristic of the captured-image data into the scene-referred frequency characteristic by removing the effect of a frequency characteristic specific to the image-capturing device from the frequency characteristic of the captured-image data.

摘要翻译： 一种图像处理方法，用于将从图像捕获装置输出的捕获图像数据用于欣赏的优化处理，以产生观看图像参考图像数据。 图像处理方法具有在执行优化处理之前进行预处理的步骤，其中预处理包括通过去除效果来将拍摄图像数据的频率特性变换为场景参考频率特性 根据捕获图像数据的频率特性，对图像捕获装置特有的频率特性。

公开(公告)号：US20060257615A1

公开(公告)日：2006-11-16

申请号：US11417206

申请日：2006-05-04

申请人： Hiroaki Takano ,  Noriko Inoue

发明人： Hiroaki Takano ,  Noriko Inoue

IPC分类号： B32B3/02

CPC分类号： G11B7/00736 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/24044 ,  G11B2007/0009

摘要： A three-dimensional optical recording medium includes: an optical information recording layer and a recording portion that stores managing information of the three-dimensional optical recording medium. The recording portion is optically or electromagnetically readable, for example, a barcode, an RFID tag, a magnetic recording material, and is disposed at a periphery of the three-dimensional optical recording medium which may be formed in a disk or in a card. An optical disk cartridge including a cartridge case for housing the medium as optical disk cartridge has the recording portion at the medium or the cartridge case.

摘要翻译： 三维光学记录介质包括：光学信息记录层和存储三维光学记录介质的管理信息的记录部分。 记录部分是光学或电磁读取的，例如条形码，RFID标签，磁记录材料，并且设置在可以形成在盘或卡中的三维光学记录介质的周围。 包括用于容纳介质作为光盘盒的盒壳的光盘盒具有在介质或盒壳体处的记录部分。