会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • CDMA chip synchronization circuit
    • CDMA芯片同步电路
    • US06188679B1
    • 2001-02-13
    • US08988990
    • 1997-12-11
    • Toshifumi Sato
    • Toshifumi Sato
    • H04B7216
    • H04B1/7075H04B1/7073H04B1/7085H04B1/709H04B1/7115H04B1/712H04B2201/70701
    • A CDMA chip synchronization circuit is provided for a mobile communications system employing a wide band CDMA method, for example, a direct spread code division multiple access (DS-CDMA) method. The circuit is designed to perform detection of multipath receiving timing, particularly synchronous tracking, under a low Eb/No environment where multipaths are received in an overlapping manner. Herein, a radio receiver converts radio frequency signals to digital base band signals, and a search section detects a receiving timing with respect to multipath components contained in the digital base band signals. The detected receiving timing is used as a center position for receiving on a time axis. The radio receiver is connected with multipath receivers, each of which contains a number of correlators which produce correlation values between the multipath components and dc-spreading codes which are delayed by different delay times respectively. Herein, the correlators correspond to prescribed intervals of time which deviate from the center position for receiving on the time axis. The correlator outputs are temporarily stored in a memory. The multipath receiver periodically selects a correlator output having a best receiving quality from among the correlator outputs for every prescribed interval of time corresponding to a pilot period. Synchronous detection is performed using the selected correlator output. Outputs of the multipath receivers are combined at a maximum ratio, so that receiving data is produced.
    • 提供了一种CDMA芯片同步电路,用于采用宽带CDMA方法的移动通信系统,例如直扩扩频码分多址(DS-CDMA)方式。 该电路被设计为在以重叠的方式接收多路径的低Eb / No环境下执行多径接收定时的检测,特别是同步跟踪。 这里,无线电接收机将射频信号转换为数字基带信号,并且搜索部分检测关于数字基带信号中包含的多径分量的接收定时。 检测到的接收定时用作在时间轴上接收的中心位置。 无线电接收机与多径接收机连接,每个接收机包含多个相关器,它们产生分别延迟不同延迟时间的多径分量和直扩展码之间的相关值。 这里,相关器对应于偏离用于在时间轴上接收的中心位置的规定时间间隔。 相关器输出暂时存储在存储器中。 多径接收机在对应于导频周期的每个规定时间间隔周期性地从相关器输出中选择具有最佳接收质量的相关器输出。 使用所选的相关器输出执行同步检测。 多径接收机的输出以最大比组合,从而产生接收数据。
    • 32. 发明授权
    • Transmitting and receiving system in base station
    • 基站发射和接收系统
    • US5321690A
    • 1994-06-14
    • US31477
    • 1993-03-15
    • Toshifumi Sato
    • Toshifumi Sato
    • H04Q7/36H04B7/26H04Q7/38H04J3/02
    • H04B7/2643
    • A transmitting and receiving system in base station in a time-division multiple access digital mobile telephone system has a control signal input/output unit (20) for an external system, a speech signal input/output unit (30) for the external system, a plurality of transmitting/receiving units (10a, 10b, 10c) each including a radio transmitting/receiving circuit (11a, 11b, 11c)and a transmission/reception data processing circuit (12a, 12b, 12c), a control signal bus (40) connecting the control signal input/output unit and the plurality of transmitting/receiving units, and a speech signal bus (50) connecting the speech signal input/output unit and the plurality of transmitting/receiving units. The transmission/reception data processing circuit (12) executes processes of disassembling and assembling to and from a plurality of slots with respect to the control signals for all channels to be multiplexed to a single radio frequency, and of data processings for each slot on the control signals and the speech signals for all channels to be multiplexed to a single radio frequency.
    • 在时分多址数字移动电话系统中的基站中的发送和接收系统具有用于外部系统的控制信号输入/输出单元(20),用于外部系统的语音信号输入/输出单元(30) 每个包括无线电发送/接收电路(11a,11b,11c)和发送/接收数据处理电路(12a,12b,12c)的发送/接收单元(10a,10b,10c),控制信号总线 40)连接控制信号输入/输出单元和多个发送/接收单元,以及连接语音信号输入/输出单元和多个发送/接收单元的语音信号总线(50)。 发送/接收数据处理电路(12)对于要复用到单个射频的所有信道的控制信号执行从多个时隙分解和组装过程的处理以及针对每个时隙的数据处理 控制信号和所有信道的语音信号被复用到单个射频。
    • 34. 发明授权
    • Radio receiver with clock signal controlled to improve the signal to
noise ratio
    • 无线电接收机采用时钟信号控制,提高信噪比
    • US5142699A
    • 1992-08-25
    • US759040
    • 1991-09-05
    • Toshifumi SatoMotoki Ide
    • Toshifumi SatoMotoki Ide
    • H04B1/16H04W52/02H04W88/02
    • H04W52/0245H04W88/022
    • In a radio paging receiver comprising a receiving section (11), a decoder section (12), and a CPU (13) for distinguishing a specific one of a plurality of call signals and processing a specific message signal succeeding the specific call signal into a processed message signal, the receiving section is intermittently put into operation. The decoder section is put into operation in accordance with a first clock signal which is supplied from a first clock generator (16). A switching circuit (20) selectively connects the CPU with the first clock generator and a second clock generator (17). More particularly, the CPU is put into operation in accordance with a second clock signal which is supplied from the second generator when the receiving section does not operate. The frequency of the second clock signal is much higher than that of the first clock signal. Therefore, the CPU processes the specific message signal into the processed message signal at a rapid processing speed in accordance with the second clock signal when the receiving section is not put into operation.
    • 在包括接收部分(11),解码器部分(12)和用于区分多个呼叫信号中的特定一个呼叫信号的CPU(13)的无线电寻呼接收机中,并且将特定呼叫信号的特定消息信号处理成一个 处理消息信号,接收部分间歇地投入运行。 解码器部分根据从第一时钟发生器(16)提供的第一时钟信号进行操作。 切换电路(20)选择性地将CPU与第一时钟发生器和第二时钟发生器(17)连接。 更具体地,当接收部分不工作时,CPU根据从第二发生器提供的第二时钟信号而投入运行。 第二时钟信号的频率比第一时钟信号的频率高得多。 因此,当接收部分未投入运行时,CPU根据第二时钟信号以快速处理速度将特定消息信号处理成处理消息信号。
    • 37. 发明授权
    • Nuclear reactor oscillation power range monitor, and method and program therefor
    • 核反应堆振荡功率范围监测及其方法和程序
    • US09595356B2
    • 2017-03-14
    • US13111322
    • 2011-05-19
    • Norihiro UmemuraToshifumi Sato
    • Norihiro UmemuraToshifumi Sato
    • G21C17/108
    • G21C17/108
    • According to one embodiment, reactor oscillation power ranges monitor includes: a receiving unit which receives LPRM signals; an exclusion processing unit which searches the LPRM signals allocated to the cell for an LPRM signal corresponding to an exceptional condition; an averaging unit which averages the allocated LPRM signals; a time averaging unit which calculates a time average of the average flux value; a normalized value calculation unit which divides the average flux value by the time averaged flux value; an initialization unit which outputs an initialization signal identifying the cell allocated to an LPRM signal which is changed to correspond or not correspond to the exceptional condition; and a determination unit which derives at least one of amplitude and cycle of a power oscillation from the normalized value.
    • 根据一个实施例,电抗器振荡功率范围监视器包括:接收单元,其接收LPRM信号; 排除处理单元,其针对与异常条件对应的LPRM信号搜索分配给所述小区的LPRM信号; 平均单元,其对分配的LPRM信号进行平均; 时间平均单元,其计算平均通量值的时间平均值; 归一化值计算单元,其将平均通量值除以时间平均通量值; 输出识别分配给LPRM信号的信元的初始化信号的初始化单元,其被改变为对应于或不对应于异常条件; 以及确定单元,其从归一化值导出功率振荡的幅度和周期中的至少一个。
    • 39. 再颁专利
    • Cellular communication system, and mobile and base stations used in the same
    • 蜂窝通信系统,以及移动和基站使用的相同
    • USRE41891E1
    • 2010-10-26
    • US10868886
    • 2004-06-17
    • Toshifumi Sato
    • Toshifumi Sato
    • H04W36/00H04W4/00H04M1/00
    • H04W36/18H04W48/12
    • When a mobile station becomes a soft handover state, a reception quality monitor 104 measures reception quality of a pilot signal from each base station. Base station specifying means 105 generates a base-station select signal (BSse1) to specify base stations that have transmitted pilot channels of inferior reception quality. The base-station select signal is multiplexed with transmission data (r-txd), and the multiplexed signal is spread at a spreading circuit. The spread signal is transmitted to plural base stations through a transmitter 111 and a duplexer 102. Then the base stations specified by this base-station specify signal stops transmission of downward signals.
    • 当移动站变为软切换状态时,接收质量监视器104测量来自每个基站的导频信号的接收质量。 基站指定装置105生成基站选择信号(BSse1),以指定已经发送具有较差接收质量的导频信道的基站。 基站选择信号与发送数据(r-txd)复用,并且复用的信号在扩频电路上扩展。 扩展信号通过发射机111和双工器102发送到多个基站。然后由该基站指定的信号指定的基站停止下行信号的传输。