公开(公告)号：US07782750B2

公开(公告)日：2010-08-24

申请号：US10368612

申请日：2003-02-20

申请人： Tomoya Yamaura ,  Kazuyuki Sakoda ,  Yasunori Maeshima ,  Hidemasa Yoshida

发明人： Tomoya Yamaura ,  Kazuyuki Sakoda ,  Yasunori Maeshima ,  Hidemasa Yoshida

IPC分类号： H04J11/00

CPC分类号： H04L5/0048 ,  H04L25/03834 ,  H04L27/2605 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656 ,  H04W48/12 ,  H04W52/0219 ,  H04W52/0229 ,  H04W52/0241 ,  Y02D70/142

摘要： A radio communication method for exchanging information between a base station and a terminal station. The method includes: communicating the information between the base station and the terminal station by multi-carrier signals by OFDM modulation scheme including plural subcarriers within a bandwidth, communicating control signals in addition to the information between the base station and the terminal station, and wherein part of the control signals addressed to the terminal station from the base station is transmitted by one or more specific subcarriers in the bandwidth for the multi-carrier signals.

摘要翻译： 一种用于在基站和终端站之间交换信息的无线电通信方法。 该方法包括：通过包括带宽内的多个子载波的OFDM调制方式，通过多载波信号来传送基站与终端站之间的信息，除了基站与终端站之间的信息之外还传送控制信号，其中 通过用于多载波信号的带宽中的一个或多个特定子载波来发送从基站寻址到终端站的控制信号的一部分。

公开(公告)号：US20100091673A1

公开(公告)日：2010-04-15

申请号：US12551773

申请日：2009-09-01

申请人： Ryou SAWAI ,  Tomoya Yamaura

发明人： Ryou SAWAI ,  Tomoya Yamaura

IPC分类号： H04L12/26

CPC分类号： H04L69/32 ,  H04L1/0025 ,  H04L1/0031 ,  H04L1/0047 ,  H04L1/0061 ,  H04L1/0643 ,  H04L5/0053 ,  H04L27/2602 ,  H04L69/18 ,  H04L69/22

摘要： A wireless communication apparatus includes a reception unit configured to receive packets in multiple formats in which two or more different types of preamble information and intra-header control information are multiplexed, a demodulation and decode unit configured to demodulate and decode the received packets, and a measurement unit configured to measure a sending end time of the reception packets by selectively referring to any one of the intra-header control information on the basis of a transmission mode supported by the demodulation and decode unit.

摘要翻译： 无线通信装置包括接收单元，被配置为接收多个格式的分组，其中两个或多个不同类型的前同步码信息和帧头内控制信息被复用;解调和解码单元，被配置为对所接收的分组进行解调和解码;以及 测量单元，被配置为基于由解调和解码单元支持的传输模式选择性地参考帧内头部控制信息中的任何一个来测量接收分组的发送结束时间。

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：US07626558B2

公开(公告)日：2009-12-01

申请号：US11488753

申请日：2006-07-19

申请人： Shinichi Kuroda ,  Hisato Asai ,  Tomoya Yamaura

发明人： Shinichi Kuroda ,  Hisato Asai ,  Tomoya Yamaura

IPC分类号： H01Q13/00

CPC分类号： H01Q9/40 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q9/0471 ,  H01Q9/28 ,  H01Q9/38 ,  H01Q19/09

摘要： A monoconical antenna comprises: a substantially conical concavity formed in one end face of a dielectric; a radiation electrode provided on the surface of the concavity; and a ground conductor provided in proximity to and substantially in parallel with the other end face opposite the one end face of the dielectric. The monoconical antenna is so constituted that electrical signals are fed to between the near vertex region of the radiation electrode and the region of the ground conductor. The half-cone angle α of the substantially conical concavity formed in the one end face of the dielectric is determined by a predetermined rule corresponding to relative dielectric constant ∈r. Thus, the quality of wideband characteristics inherent in the monoconical antenna can be sufficiently maintained, and further size reduction can be accomplished by dielectric loading.

摘要翻译： 单体天线包括：在电介质的一个端面中形成的基本上圆锥形的凹面; 设置在所述凹部的表面上的辐射电极; 以及设置在与电介质的一个端面相对的另一端面附近并基本上平行的接地导体。 单体天线被构造成使得电信号被馈送到辐射电极的近顶点区域和接地导体的区域之间。 在电介质的一个端面中形成的大致圆锥形凹部的半锥角α由对应于相对介电常数εr的预定规则确定。 因此，可以充分保持单体天线固有的宽带特性的质量，并且可以通过介电负载来实现进一步的尺寸减小。

公开(公告)号：US07583644B2

公开(公告)日：2009-09-01

申请号：US10846556

申请日：2004-05-17

申请人： Yuichi Morioka ,  Fumihiro Nishiyama ,  Tomoya Yamaura

发明人： Yuichi Morioka ,  Fumihiro Nishiyama ,  Tomoya Yamaura

IPC分类号： H04W4/00

CPC分类号： H04W74/04 ,  H04W74/002 ,  H04W84/18

摘要： The present invention is to provide each communication station with a transmission prioritised period without any useless latency in an ad-hoc communication environment including no control station. For this end, each communication station periodically transmits the beacon signal and acquires the transmission prioritised period immediately after transmission of the beacon. If the number of communication stations in the network is small, a communication station transmit a supplementary beacon within the super frame period, thereby effectively shortening the beacon interval and reducing latency at the start of transmission. At the time when a new communication station enters the network, the supplementary beacon is released in order to accommodate such new communication station.

摘要翻译： 本发明是为每个通信站提供一个传输优先的周期，而在包括无控制站的自组织通信环境中没有任何无用的等待时间。 为此，每个通信站周期性地发送信标信号，并且在发送信标之后立即获取传输优先化周期。 如果网络中的通信站的数量少，则通信站在超帧周期内发送补充信标，从而有效地缩短信标间隔并减少开始传输时的等待时间。 当新的通信站进入网络时，补充信标被释放以适应这种新的通信站。

公开(公告)号：US07132993B2

公开(公告)日：2006-11-07

申请号：US10498813

申请日：2003-10-22

申请人： Shinichi Kuroda ,  Hisato Asai ,  Tomoya Yamaura

发明人： Shinichi Kuroda ,  Hisato Asai ,  Tomoya Yamaura

IPC分类号： H01Q13/00

CPC分类号： H01Q9/40 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q9/0471 ,  H01Q9/28 ,  H01Q9/38 ,  H01Q19/09

摘要： A monoconical antenna comprises: a substantially conical concavity formed in one end face of a dielectric; a radiation electrode provided on the surface of the concavity; and a ground conductor provided in proximity to and substantially in parallel with the other end face opposite the one end face of the dielectric. The monoconical antenna is so constituted that electrical signals are fed to between the near vertex region of the radiation electrode and the region of the ground conductor. The half-cone angle α of the substantially conical concavity formed in the one end face of the dielectric is determined by a predetermined rule corresponding to relative dielectric constant ∈r. Thus, the quality of wideband characteristics inherent in the monoconical antenna can be sufficiently maintained, and further size reduction can be accomplished by dielectric loading.

摘要翻译： 单体天线包括：在电介质的一个端面中形成的基本上圆锥形的凹面; 设置在所述凹部的表面上的辐射电极; 以及设置在与电介质的一个端面相对的另一端面附近并基本上平行的接地导体。 单体天线被构造成使得电信号被馈送到辐射电极的近顶点区域和接地导体的区域之间。 在电介质的一个端面中形成的基本上圆锥形的凹部的半锥角α由对应于相对介电常数εα的预定规则确定。 因此，可以充分保持单体天线固有的宽带特性的质量，并且可以通过介电负载来实现进一步的尺寸减小。

公开(公告)号：US20050184913A1

公开(公告)日：2005-08-25

申请号：US11107878

申请日：2005-04-18

申请人： Shinichi Kuroda ,  Tomoya Yamaura

发明人： Shinichi Kuroda ,  Tomoya Yamaura

IPC分类号： H01Q13/08 ,  H01Q1/38 ,  H01Q9/04

CPC分类号： H01Q1/38 ,  H01Q9/0421

摘要： Disclosed is a wideband antenna with a lowered standing wave ratio. The wideband antenna interposes a substance whose conductivity is about 0.1 through 10.0 as an interposition between a reference conductor and a radiation conductor; and thereby, the antenna reduces reflections of signals, and achieves a wider bandwidth as well as a sufficient gain with a lowered standing wave ratio. Also, the invention realizes a thin-type wideband antenna with a wider bandwidth and a sufficient gain, by interposing a magnetic substance whose relative permeability is more than 1 through about 8 as the interposition between the reference conductor and the radiation conductor.

公开(公告)号：US20050184911A1

公开(公告)日：2005-08-25

申请号：US11107801

申请日：2005-04-18

申请人： Shinichi Kuroda ,  Tomoya Yamaura

发明人： Shinichi Kuroda ,  Tomoya Yamaura

IPC分类号： H01Q13/08 ,  H01Q1/38 ,  H01Q9/04

CPC分类号： H01Q1/38 ,  H01Q9/0421

摘要： Disclosed is a wideband antenna with a lowered standing wave ratio. The wideband antenna interposes a substance whose conductivity is about 0.1 through 10.0 as an interposition between a reference conductor and a radiation conductor; and thereby, the antenna reduces reflections of signals, and achieves a wider bandwidth as well as a sufficient gain with a lowered standing wave ratio. Also, the invention realizes a thin-type wideband antenna with a wider bandwidth and a sufficient gain, by interposing a magnetic substance whose relative permeability is more than 1 through about 8 as the interposition between the reference conductor and the radiation conductor.