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公开(公告)号：US07286504B2
公开(公告)日：2007-10-23
申请号：US10187800
申请日：2002-07-03
CPC分类号： H04W16/00
摘要： A communication zone is defined by a plurality of cells, which are separated from one another and has respective fixed base stations. The base stations in the first cell and the last cell are capable of bidirectional communication with a mobile station, while other base stations are capable of unidirectional communication. The base stations are connected to a zone control station, which controls communications with the mobile station within the zone.
摘要翻译： 通信区由多个单元定义，多个单元彼此分离并具有相应的固定基站。 第一小区和最后一个小区中的基站能够与移动台双向通信，而其他基站能够进行单向通信。 基站连接到区域控制站，该区域控制站控制与该区域内的移动站的通信。
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2.发明授权Receiving apparatus, receiving method, program and information recording medium 有权接收装置，接收方法，程序和信息记录介质公开(公告)号：US06959052B2
公开(公告)日：2005-10-25
申请号：US10092697
申请日：2002-03-06
CPC分类号： H04L27/2647 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L2025/03414
摘要： A channel evaluator acquires a change predicted value from a known symbol, and a compensator compensates for a first symbol using the change predicted value. A demodulator restores a portion corresponding to this symbol with another subcarrier. A replica generator acquires a transmission replica of the restored symbol. The channel evaluator performs complex division on the replica with the symbol to acquire an amplitude phase ratio. A detector compares the amplitude phase ratio with an amplitude phase ratio acquired immediately previously. In case where an elimination condition is satisfied, the detector disregards the amplitude phase ratio acquired currently and uses an immediately previous value instead, an averaging unit averages amplitude phase ratios to acquire a next change predicted value, and the compensator compensates for a next symbol using the change predicted value. Hereinafter, the sequence of processes is repeated.
摘要翻译： 信道评估器从已知符号获取改变预测值，并且补偿器使用改变预测值来补偿第一符号。 解调器用另一副载波来恢复对应于该符号的部分。 副本生成器获取已恢复符号的传输副本。 信道评估器对具有符号的副本执行复数除法以获得幅度相位比。 检测器将幅度相位比与立即获得的振幅相位比进行比较。 在满足消除条件的情况下，检测器忽略当前获取的幅度相位比，并且代替使用紧接在前的值，平均单元对振幅相位比进行平均以获取下一个改变预测值，并且补偿器使用 变化预测值。 以下，重复处理顺序。
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公开(公告)号：US07313180B2
公开(公告)日：2007-12-25
申请号：US10789672
申请日：2004-02-27
申请人： Hiroshi Harada , Masayuki Fujise , Ryuuhei Funada , Manabu Sawada
发明人： Hiroshi Harada , Masayuki Fujise , Ryuuhei Funada , Manabu Sawada
IPC分类号： H03H7/30
CPC分类号： H04L25/03159 , H04L25/0202 , H04L2025/03414 , H04L2025/03522 , H04L2025/03783
摘要： A receiving unit of a receiving device receives a signal arriving thereto through a transmission path as a reception signal. A delay unit outputs a delay signal obtained by delaying the reception signal by a predetermined delay time. An estimation unit estimates a transmission path characteristic. An equalizer/demodulator compensates for the delay signal with the transmission path characteristic, demodulates the compensation result, and outputs the demodulation result as a transmission signal. A replica unit compensates for the reception signal with the transmission path characteristic, demodulates the compensation result, modulates the demodulation result, and outputs the modulation result as a replica signal. The estimation unit estimates a transmission path characteristic by comparing the reception signal with the replica signal. The predetermined delay time is equal to or smaller than a time required for the processes by the replica unit and the estimation unit.
摘要翻译： 接收装置的接收单元通过传输路径接收到达其的信号作为接收信号。 延迟单元输出通过将接收信号延迟预定延迟时间而获得的延迟信号。 估计单元估计传输路径特性。 均衡器/解调器用传输路径特性补偿延迟信号，解调补偿结果，并输出解调结果作为传输信号。 复制单元用传输路径特性补偿接收信号，解调补偿结果，调制解调结果，并输出调制结果作为复制信号。 估计单元通过将接收信号与复制信号进行比较来估计传输路径特性。 预定延迟时间等于或小于复制单元和估计单元处理所需的时间。
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4.发明授权公开(公告)号：US07136426B2
公开(公告)日：2006-11-14
申请号：US10020164
申请日：2001-12-18
申请人： Minoru Okada , Yutaka Aoki , Manabu Sawada , Masahiro Kuwabara , Hiroshi Harada , Masayuki Fujise
发明人： Minoru Okada , Yutaka Aoki , Manabu Sawada , Masahiro Kuwabara , Hiroshi Harada , Masayuki Fujise
CPC分类号： H04L27/08 , H04B10/25752 , H04L27/10
摘要： A vehicle-vehicle communication system includes an in-vehicle wire LAN established in a vehicle. The in-vehicle wire LAN includes a plurality of devices connected by optical fiber links. A terminal for radio vehicle-vehicle communication is connected to the in-vehicle wire LAN by the optical fiber link. The terminal receives an optical digital signal in a predetermined format from the in-vehicle wire LAN. The terminal includes a light controlled oscillator and applies the received optical signal to the light controlled oscillator. The light controlled oscillator outputs a transmission signal of a frequency shifted from a predetermined frequency according to the intensity of the applied optical signal. Thus the terminal generates the transmission signal using FSK-modulation technique without converting the format of the optical signal into another format. The transmission signal is transmitted to a device in another vehicle via radio waves.
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公开(公告)号：US20050111402A1
公开(公告)日：2005-05-26
申请号：US10779575
申请日：2004-02-13
申请人： Manabu Sawada , Shigeki Kawai , Hiroshi Harada , Masayuki Fujise
发明人： Manabu Sawada , Shigeki Kawai , Hiroshi Harada , Masayuki Fujise
CPC分类号： H04W72/1257 , H04L1/188 , H04L5/0005 , H04L5/0055
摘要： In a radio communication system, a base station sends each of n send packets to a terminal station in parallel through n channels as they are in packet unit instead of dividing each of n send packets to send the same to the terminal station. It is possible in the base station to eliminate the need for a processing of dividing send packets and processing of resending divided send packets. It is also possible in the terminal station to eliminate the need of a configuration for receiving the divided send packets.
摘要翻译： 在无线通信系统中，基站通过n个信道并行地将n个发送分组中的每一个发送到终端站，而不是将n个发送分组中的每一个发送到终端站。 在基站中可以消除对分组发送分组的处理和重发分组发送分组的处理的需要。 终端也可以不需要用于接收划分的发送分组的配置。
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6.发明授权公开(公告)号：US07006430B2
公开(公告)日：2006-02-28
申请号：US09865165
申请日：2001-05-24
申请人： Hiroshi Harada , Masayuki Fujise , Ryuuhei Funada , Manabu Sawada
发明人： Hiroshi Harada , Masayuki Fujise , Ryuuhei Funada , Manabu Sawada
IPC分类号： H04J11/00
CPC分类号： H04L25/0212 , H04L25/0204 , H04L27/2647
摘要： A receiving section outputs a received signal. An estimation section estimates transmission path characteristics, using the received signal and a modulated data signal. A compensation section outputs a compensated data signal, using the received signal and the transmission path characteristics. A demodulation section demodulates a modulated data signal, using the compensated data signal. A modulation section modulates a modulated data signal, using the demodulated data signal. The estimation section begins the estimation by comparing a result obtained by modulating known-data and a known-data portion of the received signal. The compensation section compensates for a non-compensated data signal portion, using the estimated transmission path characteristics.
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公开(公告)号：US07003301B2
公开(公告)日：2006-02-21
申请号：US09953429
申请日：2001-09-17
申请人： Manabu Sawada , Masahiro Kuwabara , Yutaka Aoki , Minoru Okada , Hiroshi Harada , Masayuki Fujise
发明人： Manabu Sawada , Masahiro Kuwabara , Yutaka Aoki , Minoru Okada , Hiroshi Harada , Masayuki Fujise
CPC分类号： H04W16/32
摘要： A Micro-cell is formed to include a plurality of spot-cells. Communication is executed between a micro-cell base station and a mobile terminal in the micro-cell, and between a spot-cell base station and the mobile terminal in the spot cell. The micro-cell base station and spot-cell base stations are connected to an integrated base station. A signal transmitted to the micro-cell base station from the mobile terminal is transferred to the integrated base station and information transmitted to the mobile terminal is transferred to the micro-cell base station and/or spot-cell base station from the integrated base station. The respective integrated base stations are connected to a server via a dedicated backbone to enable a large-capacity transmission.
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公开(公告)号：US6066997A
公开(公告)日：2000-05-23
申请号：US928395
申请日：1997-09-12
CPC分类号： H03B5/1852 , H03B1/04 , H03B2200/0028 , H03B2200/0062 , H03B2200/0092 , H03B2201/0208 , H03C3/08 , H03C3/20
摘要： A frequency multiplier is constructed to input an input signal to a transistor through an input matching circuit and to output a multiplied output signal from the transistor through a reflecting type fundamental wave signal band suppressing circuit and an output matching circuit. A transmission line produces a standing wave and is disposed between the output terminal of the transistor and the input terminal of the reflecting type fundamental wave signal band suppressing circuit. Because the voltage acting on the output terminal of the transistor consequently increases, the transistor operates at a point at which the nonlinearity of its input-output characteristic is greater and the output power of the multiplied output signal increases.
摘要翻译： 构成倍增器，以通过输入匹配电路将输入信号输入到晶体管，并通过反射型基波信号频带抑制电路和输出匹配电路从晶体管输出相乘的输出信号。 传输线产生驻波，并且设置在晶体管的输出端和反射型基波信号频带抑制电路的输入端之间。 因为作用在晶体管的输出端上的电压因此增加，所以晶体管在其输入 - 输出特性的非线性更大并且倍增输出信号的输出功率增加的点处工作。
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公开(公告)号：US07099265B2
公开(公告)日：2006-08-29
申请号：US09872330
申请日：2001-06-01
IPC分类号： H04J11/00
CPC分类号： H04Q11/02 , H04B7/10 , H04L5/0048 , H04L27/2626 , H04L27/2647
摘要： A diversity OFDM communication is performed between a base terminal and a mobile terminal, both having a horizontal polarization antenna and a vertical polarization antenna forming two transmission channels. In the base terminal, data signals to be transmitted are divided into two channels to transmit the data signals through either one of the channels having a higher transmission performance for each sub-carrier. Common pilot signals are transmitted through both channels. The data signals received by the mobile terminal are phase-adjusted using the common pilot signals. The phase-adjusted data signals in both channels are synthesized and then demodulated.
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10.发明授权Decoder device for decoding packet signals composed of control codes and data codes 失效用于解码由控制码和数据码组成的分组信号的解码器装置公开(公告)号：US06947501B2
公开(公告)日：2005-09-20
申请号：US09867727
申请日：2001-05-29
申请人： Shigeki Kawai , Manabu Sawada , Kunihiko Sasaki
发明人： Shigeki Kawai , Manabu Sawada , Kunihiko Sasaki
IPC分类号： H04L27/18 , H04J11/00 , H04L1/00 , H04L27/00 , H04L27/26 , H04L27/34 , H04L29/06 , H04L27/06 , G01S1/24 , G10L21/00
CPC分类号： H04L1/0071 , H04L1/0009 , H04L1/0045 , H04L27/2647
摘要： A packet signal, formed according to an orthogonal frequency division multiplexing (OFDM) format, received by a receiver is decoded in a decoder device of the receiver. The packet signal includes a data code and a control code having a formula for decoding the data code. The control code is first decoded and analyzed to obtain the decoding formula contained therein. The data code is decoded during a period in which the control code is being analyzed, based on plural decoding formulae one of which coincides with the decoding formula contained in the control code. Data signals decoded based on the respective decoding formulae are sent to an output selector together with the decoding formula obtained from the control code. The output selector selects a data signal which is decoded based on a decoding formula that coincides with the decoding formula obtained from the control code.
摘要翻译： 由接收机接收的根据正交频分复用（OFDM）格式形成的分组信号在接收机的解码器装置中解码。 分组信号包括数据代码和具有用于解码数据代码的公式的控制代码。 首先对控制码进行解码和分析，以获得其中包含的解码公式。 基于多个解码公式，其中一个与控制代码中包含的解码公式一致，在分析控制代码的时段期间对数据代码进行解码。 基于各个解码公式解码的数据信号与从控制码获得的解码公式一起被发送到输出选择器。 输出选择器基于与从控制码获得的解码公式一致的解码公式来选择解码的数据信号。
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