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    • 41. 发明授权
    • Wireless location handset apparatus
    • 无线定位手机设备
    • US06640107B1
    • 2003-10-28
    • US09639745
    • 2000-08-15
    • Mikio KuwaharaKatsuhiko Tsunehara
    • Mikio KuwaharaKatsuhiko Tsunehara
    • H04Q720
    • H04W64/00G01S5/10H04B1/707H04B7/01
    • A periodical signal is transmitted from a cellular base station. A memory circuit having a capacity of the signal for one cycle is provided. Newly received information is added to information previously accumulated in the memory circuit, and the resultant information is again accumulated in the memory circuit, thereby enabling the received information to be stored in the memory circuit having the capacity for only one cycle of the signal. Conventionally, a large amount of memory has been required to perform coherent adding for a long time period, whereas the present invention can reduce the circuit scale and the amount of memory, and also reduce the number of times of operations required for the long-period coherent adding, when a mobile station is located using a cellular communication system.
    • 从蜂窝基站发送周期信号。 提供具有一个周期的信号容量的存储器电路。 将新收到的信息添加到先前存储在存储器电路中的信息,并且所得到的信息再次累积在存储器电路中,从而使得所接收的信息能够被存储在仅具有该信号的一个周期的容量的存储器电路中。 通常,需要大量的存储器来执行长时间的相干加法,而本发明可以减少电路规模和存储量,并且还减少长周期所需的操作次数 当移动台位于使用蜂窝通信系统时,相干相加。
    • 42. 发明授权
    • Method for measuring distance and position using spectrum signal, and an equipment using the method
    • 使用频谱信号测量距离和位置的方法,以及使用该方法的设备
    • US06459402B1
    • 2002-10-01
    • US09640018
    • 2000-08-17
    • Katsuhiko TsuneharaNobukazu DoiMikio KuwaharaTomoaki Ishifuji
    • Katsuhiko TsuneharaNobukazu DoiMikio KuwaharaTomoaki Ishifuji
    • G01S1308
    • G01S5/0215G01S1/026G01S1/045G01S5/10H04B1/70755H04B2201/70715
    • Under a multi-path environment, the receive timing for an incoming wave of the minimum propagation delay time cannot be accurately measured in the prior art. By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation section 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timings that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, the reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by a previously set timing behind said reference timing is sent from the receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
    • 在多路径环境下,在现有技术中不能精确地测量最小传播延迟时间的入射波的接收定时。 通过使用从第一阈值计算部105接收到的延迟分布创建部102和第一阈值330所产生的延迟分布,第一阈值定时检测部103从全部仅选择超过第一阈值的最早的接收定时 延迟分布中的相关值变为最大的定时。 通过使用从第二阈值计算部107接收的接收定时和第二阈值331,基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。 从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113延迟的参考定时之后的先前设定的定时的定时。
    • 44. 发明授权
    • Antenna system including a plurality of meander conductors for a
portable radio apparatus
    • 天线系统,包括用于便携式无线电设备的多个曲折导体
    • US5559524A
    • 1996-09-24
    • US207428
    • 1994-03-08
    • Ken TakeiMasami OhnishiMikio Kuwahara
    • Ken TakeiMasami OhnishiMikio Kuwahara
    • H01Q1/24H01Q1/36H01Q1/08
    • H01Q1/362H01Q1/242
    • An antenna of small size is provided which can be mass-produced, which is suitable for use with a portable receiver and which does not require provision of a separate matching circuit. The antenna includes a plurality of meander antennas printed on at least one dielectric film and satisfying respectively different resonance conditions in a frequency band used by the receiver, at least one dielectric solid cylinder for winding the dielectric film therearound, and a dielectric hollow cylinder for covering the dielectric film wound around the dielectric solid cylinder. The individual meander antennas printed on the dielectric film do not make direct electrical contact with each other, and one of the meander antennas connected to a feeder or a helical antenna surrounding the dielectric solid cylinder acts to produce multiple resonance by means of electromagnetic coupling with the other meander antennas, thereby widening the frequency band. The dielectric solid cylinder around which the dielectric film is wound or to which the dielectric film is bonded may be replaced by a dielectric polygonal prism such as a dielectric square prism. In the antenna, impedance matching with the radio frequency part of the receiver can be satisfactorily achieved, so that an antenna of low cost suitable for portable receivers can be offered.
    • 提供小尺寸的天线,其可以批量生产,其适合于与便携式接收器一起使用,并且不需要提供单独的匹配电路。 该天线包括印刷在至少一个电介质膜上的多个曲折天线,并且在接收器使用的频带中分别满足不同的共振条件,至少一个用于在其周围缠绕电介质膜的电介质实心圆柱体,以及用于覆盖 电介质膜缠绕在电介质实心圆筒上。 打印在电介质膜上的各个曲折天线不会彼此直接电接触,并且连接到馈电器或围绕电介质实心圆柱体的螺旋天线之一的曲折天线之一用于通过电磁耦合产生多个谐振 其他弯曲天线,从而扩大了频带。 电介质膜被缠绕在其周围或电介质膜被接合的电介质实心圆柱体可以由电介质多边形棱柱如电介质正方形棱镜代替。 在天线中,可以令人满意地实现与接收机的射频部分的阻抗匹配,从而可以提供适合于便携式接收机的低成本的天线。
    • 45. 发明授权
    • Radio base station, radio communication system and interference notifying method in radio communication system
    • 无线电基站,无线电通信系统和无线电通信系统中的干扰通知方法
    • US08862167B2
    • 2014-10-14
    • US13238556
    • 2011-09-21
    • Tsukasa SasayamaMikio KuwaharaKoichiro FuruedaHajime Kanzaki
    • Tsukasa SasayamaMikio KuwaharaKoichiro FuruedaHajime Kanzaki
    • H04B15/00
    • H04W24/10
    • A radio communication system is provided in which, based on a measurement condition and neighbor information specified by a base station to which a mobile terminal is connected, the mobile terminal measures the reception quality of the neighboring base stations included in the neighbor information and, when a transmission request is received from the connected base station, transmits the measurement result to the connected base station. In this radio communication system, the base station transmits neighbor information, which specifies the base stations for which interference measurement is to be performed, and a measurement result transmission request to the mobile terminal at a predetermined time for measuring the interference of neighboring base stations and, in response to it, the mobile terminal transmits the measurement result of the base stations, specified by the base station for measuring the interference, to the base station.
    • 提供了一种无线电通信系统,其中,基于由连接有移动终端的基站指定的测量条件和相邻信息,移动终端测量包括在邻居信息中的相邻基站的接收质量,以及何时 从所连接的基站接收到发送请求,将测量结果发送给所连接的基站。 在该无线通信系统中,基站在预定时间向移动终端发送指定要进行干扰测量的基站的相邻信息和测量结果发送请求,以测量相邻基站的干扰, 响应于此,移动终端向基站发送由用于测量干扰的基站指定的基站的测量结果。
    • 47. 发明授权
    • Wireless communication system, wireless communication method, and base station
    • 无线通信系统,无线通信方式和基站
    • US08571589B2
    • 2013-10-29
    • US12826140
    • 2010-06-29
    • Naomitsu IshibashiMikio Kuwahara
    • Naomitsu IshibashiMikio Kuwahara
    • H04M1/00H04B1/00H04B15/00
    • H04L5/0023
    • In a wireless communication system having a plurality of base stations and a control station controlling the plurality of base stations, the control station allocates, to the plurality of base stations, antenna patterns associated with directivity patterns for each of a plurality of frequency bands that can be utilized by the respective base stations and if it transmits, to respective ones of the plurality of base stations, parameters for associating the allocated antenna patterns with directivity patterns for each of the plurality of frequency bands; and the plurality of base stations associate the directivity patterns with the plurality of frequency bands on the basis of the parameters received from the control station and, in accordance with the associated directivity patterns, transmit signals to the antenna and receive signals from the antenna.
    • 在具有多个基站和控制多个基站的控制站的无线通信系统中,控制站向多个基站分配与多个频带中的每一个的方向性模式相关联的天线模式, 由各个基站使用,并且如果向多个基站中的相应基站发送用于将分配的天线方向图与多个频带中的每一个的方向性模式相关联的参数; 并且所述多个基站根据从所述控制站接收到的参数,并根据所述相关联的方向性模式,将所述指向性模式与所述多个频带相关联,并向所述天线发送信号并从所述天线接收信号。
    • 48. 发明授权
    • Transmission apparatus, access point and symbol transmission method
    • 传输装置,接入点和符号传输方法
    • US08291275B2
    • 2012-10-16
    • US12474593
    • 2009-05-29
    • Kingo MiyoshiMikio Kuwahara
    • Kingo MiyoshiMikio Kuwahara
    • H04L1/06
    • H04B7/0671H04L1/1607H04L1/1812H04L1/1877H04L5/0023H04L27/2626H04W28/08
    • In a transmission apparatus in a MIMO-OFDM communication system employing cyclic diversity, a cyclic delay controller sets plural delay magnitudes, different for respective antennas, in cyclic delayers for each predetermined timing. The cyclic delayers receive symbols subjected to orthogonal frequency division multiplexing, for the respective ones of plural allotted antennas. Additionally, the cyclic delayers bestow cyclic delays on the individual symbols of the respective antennas in accordance with plural set delay magnitudes. The symbols cyclically delayed are outputted from the antennas. As the delay magnitudes, a first delay magnitude at a first transmission timing and a second delay magnitude at a second transmission timing are different for one antenna, and the delay magnitudes differ in the respective antennas for one transmission timing. Thus, in a MIMO-OFDM transmission scheme, frequency diversity and time diversity are enhanced to heighten a retransmission efficiency in a data retransmission mode.
    • 在采用循环分集的MIMO-OFDM通信系统中的发送装置中,循环延迟控制器对于每个预定定时,在循环延迟器中为各个天线设置不同的延迟幅度。 循环延迟器接收经过正交频分复用的符号,用于多个分配天线中的相应的。 此外,循环延迟器根据多个设定的延迟幅度给各个天线的各个符号产生循环延迟。 从天线输出循环延迟的符号。 作为延迟幅度,在第一发送定时的第一延迟幅度和第二发送定时的第二延迟幅度对于一个天线是不同的,并且对于一个发送定时,各个天线中的延迟幅度不同。 因此,在MIMO-OFDM传输方案中,增强了频率分集和时间分集以提高数据重传模式中的重传效率。