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    • 23. 发明申请
    • BATTERY CHARGER
    • 充电器
    • US20090027012A1
    • 2009-01-29
    • US12175269
    • 2008-07-17
    • Koji UmetsuMasanao SatoKazumi Sato
    • Koji UmetsuMasanao SatoKazumi Sato
    • H02J7/00H02J7/04
    • H02J7/0044
    • A battery charger for charging a secondary battery using a power supply circuit, includes a discrimination circuit to discriminate a constant-current charging mode and a constant-voltage charging mode, and a controller to which a discrimination signal is supplied. When judged as being the constant-current charging mode, the controller sets the current in the constant-current charging mode by using the control signal. When judged as being the constant-voltage charging mode in accordance with the discrimination signal, the controller sets intermittently the end of charging detection current, and sets an end of charging detection period for judging the constant-current charging mode and the constant-voltage charging mode. When the discrimination signal indicates the constant-voltage charging mode in the end of charging detection period, the controller controls to shift to the end of charging detection mode.
    • 一种使用电源电路对二次电池进行充电的电池充电器,包括:鉴别电路,用于识别恒流充电模式和恒定电压充电模式;以及控制器,其中提供鉴别信号。 当判断为恒流充电模式时,控制器通过使用控制信号将电流设定为恒流充电模式。 当判断为根据鉴别信号的恒压充电模式时,控制器间歇地设定充电检测电流的结束,并设定用于判断恒流充电模式和恒压充电的充电检测期间的结束 模式。 当鉴别信号在充电检测期结束时表示恒压充电模式时,控制器控制转移到充电检测模式的结束。
    • 25. 发明授权
    • Wireless receiving method
    • 无线接收方式
    • US07359689B2
    • 2008-04-15
    • US10994469
    • 2004-11-23
    • Koji HorisakiKazumi Sato
    • Koji HorisakiKazumi Sato
    • H04B17/02H04B17/00
    • H04L25/0226
    • A wireless receiving method includes calculating a transmission channel response from a reception signal and a reference signal, determining reliabilities of a plurality of transmission channel responses calculated using reception signals received at different time periods to decide on a weight synthesis method, weight-synthesizing the plurality of transmission channel responses based on the decided weight synthesis method to obtain a synthesized transmission channel response, and compensating a distortion of the reception signal using the synthesized transmission channel response.
    • 无线接收方法包括从接收信号和参考信号计算传输信道响应,确定使用在不同时间段接收的接收信号计算的多个传输信道响应的可靠性,以决定权重合成方法, 基于所确定的权重合成方法来获得合成的传输信道响应,并且使用合成的传输信道响应来补偿接收信号的失真。
    • 26. 发明授权
    • Radio receiving apparatus and method
    • 无线接收装置及方法
    • US07308037B2
    • 2007-12-11
    • US10950396
    • 2004-09-28
    • Koji AkitaKazumi SatoKuniaki ItoAkihiro Tsujimura
    • Koji AkitaKazumi SatoKuniaki ItoAkihiro Tsujimura
    • H04B7/02
    • H04B7/0874
    • Radio receiving apparatus includes antennas, radio units adjusting gains of received signals, and outputting the adjusted received signals, respectively, converters converting the adjusted received signals into digital signals, selector device which selects several of the digital signals, combination of the selected digital signals exhibiting good receiving characteristic, controller which determines the gains and outputs single control signal included in information of the determined gains to certain radio units, the certain radio units being included in the radio units and connected to certain converters of the converters which output digital signals included in the selected combination, weight calculator which calculates weight for each of the selected digital signals to enhance the receiving characteristic if the controller outputs the single control signal, synthesizer which synthesizes, into synthetic digital signal, digital signals obtained by multiplying each of the selected digital signals by the weight, and demodulator which demodulates the synthetic digital signal.
    • 无线接收装置包括天线,无线电单元,分别调整接收信号的增益,并分别输出经调整的接收信号,将经调整的接收信号转换为数字信号的转换器,选择数字信号的选择装置,所选数字信号的组合表现 良好的接收特性,控制器,其确定增益和输出包括在确定的增益的信息中的单个控制信号到某些无线电单元,所述某些无线电单元包括在无线电单元中并连接到转换器的某些转换器,该转换器输出包括在 所选择的组合,权重计算器,其计算每个所选数字信号的权重,以在控制器输出单个控制信号时提高接收特性,合成器将合成数字信号合成为通过将所选择的二进制 重量信号,解调合成数字信号的解调器。
    • 27. 发明授权
    • OFDM receiver apparatus
    • OFDM接收机装置
    • US07283598B2
    • 2007-10-16
    • US10813014
    • 2004-03-31
    • Koji AkitaKazumi SatoRen Sakata
    • Koji AkitaKazumi SatoRen Sakata
    • H04L27/00H04L7/00H04L27/06H03H7/30H04J11/00
    • H04L25/03159H04L27/2657H04L2025/03414
    • An OFDM receiver apparatus comprises a receiver to receive an OFDM signal, an estimator to estimate a distortion, a distortion compensator subjecting the sub-carrier to distortion compensation according to a control signal to generate a distortion-compensated sub-carrier, a demodulator to demodulate the distortion-compensated sub-carrier, an estimator to generate first phase distortion information, using the distortion-compensated sub-carrier and the distortion information, a weighting synthesizer to weight the first phase distortion information by weighting factors with time function over symbol intervals and then synthesize the first phase distortion information, to generate second phase distortion information, and a control signal generator to generate the control signal using the distortion information and the second phase distortion information.
    • OFDM接收机装置包括接收OFDM信号的接收机,用于估计失真的估计器,根据控制信号对子载波进行失真补偿的失真补偿器,以产生失真补偿子载波,解调器解调 失真补偿子载波,使用失真补偿子载波和失真信息产生第一相位失真信息的估计器,加权合成器,用于通过符号间隔上的时间函数加权因子来加权第一相位失真信息;以及 然后合成第一相位失真信息,产生第二相位失真信息,以及控制信号发生器,使用失真信息和第二相位失真信息产生控制信号。
    • 29. 发明申请
    • Radio communication method, system and a terminal station
    • 无线电通信方法,系统和终端
    • US20060192708A1
    • 2006-08-31
    • US11345488
    • 2006-02-02
    • Tomoya TandaiTomoko AdachiYoriko UtsunomiyaDaisuke TakedaKazumi SatoKoji Ogura
    • Tomoya TandaiTomoko AdachiYoriko UtsunomiyaDaisuke TakedaKazumi SatoKoji Ogura
    • G01S13/86
    • G01S7/021
    • Radio communication system includes terminal including unit detecting radar wave transmitted through second-frequency channel, first-and-second-frequency channels through which radar wave fails to be transmitted being simultaneously utilized or one of first-and-second-frequency channels being utilized, unit generating radar-detection information including information indicating detection time when detecting unit detects radar wave, and information indicating frequency channel through which radar wave is transmitted, and unit transmitting radar-detection information, and base station including unit receiving radar-detection information, unit generating radar-occurrence information based on received-radar-detection information, radar-occurrence information including information indicating occurrence time when radar wave occurs, information indicating period of occurrence of radar wave, and information indicating frequency channel through which radar wave is transmitted, and unit transmitting radar-occurrence information, terminal further including unit receiving radar-occurrence information, and unit communicating with other terminals through second-frequency channel without using base station when radar wave fails to occur, based on received-radar-occurrence information.
    • 无线电通信系统包括:终端,包括通过第二频道发送的雷达波的单元检测,同时利用雷达波不能发送的第一和第二频率信道,或利用第一和第二频道中的一个, 单元产生雷达检测信息,包括指示检测单元检测雷达波时的检测时间的信息,以及指示雷达波发射的频道的信息,以及发送雷达检测信息的单元,以及包括接收雷达检测信息的单元的基站 基于接收雷达检测信息生成雷达发生信息,包括表示发生雷达波的发生时间的信息的雷达发生信息,表示雷达波的发生期间的信息以及表示雷达波发送的频道的信息,以及 单位传输 基于接收到的雷达发生信息,终端还包括接收雷达发生信息的单元,以及当雷达波不能发生时不使用基站通过第二频道与其他终端通信的单元。