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1. 发明专利

JP2008085558A Receiver, receiver for positioning system using the same, and the positioning method 有权
标题翻译：接收器，使用它的定位系统的接收器和定位方法
公开(公告)号：JP2008085558A
公开(公告)日：2008-04-10
申请号：JP2006262104
申请日：2006-09-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIWARA RYOSUKE , MIZUGAKI KENICHI , MIYAZAKI SUKEYUKI
IPC分类号： G01S5/06 , H04W64/00
CPC分类号： G01S5/0289 , G01S5/0215 , H04W64/00 , Y02D70/00 , Y02D70/142
摘要： PROBLEM TO BE SOLVED: To deduce the first path of an arrival signal, using a simple structure and at lower power consumption. SOLUTION: A nominal pulse repetition frequency or its integral multiple are A/D-converted at a frequency lower than the reciprocal of the pulse width, the A/D conversion timing is offset by the time resolution Δt and the reception signal is measured, data is stored in a RAM, and the first path output time is deduced, based on sequentially rearranging of the arrival times of the stored waveform data. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：推导出到达信号的第一路径，使用简单的结构和较低的功耗。解决方案：标称脉冲重复频率或其积分倍数以低于脉冲宽度倒数的频率进行A / D转换，A / D转换时序被时间分辨率Δt偏移，接收信号为基于存储的波形数据的到达时间的顺序重新排列，将数据存储在RAM中，并推导出第一路径输出时间。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007071819A Receiver, frequency deviation measuring unit, and positioning ranging system 有权
标题翻译：接收机，频偏偏差测量单元和定位系统
公开(公告)号：JP2007071819A
公开(公告)日：2007-03-22
申请号：JP2005261852
申请日：2005-09-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAGAWA SHIGEO , MIYAZAKI SUKEYUKI , MIZUGAKI KENICHI , FUJIWARA RYOSUKE
IPC分类号： G01S5/06 , H04W64/00
CPC分类号： G01S5/06 , H04J3/0682
摘要： PROBLEM TO BE SOLVED: To measure a highly accurately time difference with a compact and a low-cost device with low power consumption in a system for performing ranging by measuring an arrival time of a signal. SOLUTION: The system has a node (to be positioned) for transmitting a positioning signal, a reference station for transmitting a reference signal, a plurality of base stations for receiving the positioning signal and the reference signal, and a server connected with the plurality of the base stations and a network. The plurality of the base stations measures the time difference and a frequency deviation with the reference station receiving the positioning signal and the reference signal by using a clock signal and a signal shifting the clock signal, and calculates the position of the node by the server on the basis of the measurement time difference and the frequency deviation. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过测量信号的到达时间来进行测距的系统中，通过具有低功耗的紧凑型和低成本设备来测量高精度的时间差。解决方案：系统具有用于发送定位信号的节点（待定位），用于发送参考信号的参考站，用于接收定位信号的多个基站和参考信号，以及与多个基站和网络。多个基站通过使用时钟信号和移位时钟信号的信号来测量时间差和参考站接收定位信号和参考信号的频率偏差，并且由服务器计算节点的位置测量时间差的基础和频率偏差。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006170891A Node position positioning system, radio base station, and position measuring method 有权
标题翻译：节点位置定位系统，无线基站和位置测量方法
公开(公告)号：JP2006170891A
公开(公告)日：2006-06-29
申请号：JP2004365939
申请日：2004-12-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUGAKI KENICHI , FUJIWARA RYOSUKE
IPC分类号： G01S5/06 , G01S19/09 , G01S19/42 , H04W64/00 , H04W84/10 , H04W88/08
CPC分类号： G01S5/021 , G01S5/06
摘要： PROBLEM TO BE SOLVED: To simplify structure of a base station. SOLUTION: This node position positioning system having a node, a reference station, the plurality of base stations, a server for calculating a position of the node, and a network for connecting the base stations with the server, the reference station is provided with a positioning signal reception part for receiving a positioning signal, and a reference signal preparation part for transmitting a reference signal after the positioning signal reception part receives the positioning signal, the each base station is provided with a signal reception part for receiving the positioning signal and the reference signal, a reception time measuring part for detecting specified patterns from the positioning signal and the reference signal received by the signal reception part, and for measuring a time in the detection, and a communication part for transmitting, to the server, time information generated from the time measured by the reception time measuring part, and the server is provided with a position calculation part for calculating the position of the node, based on the time information transmitted from the base each station. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了简化基站的结构。解决方案：该节点位置定位系统具有节点，参考站，多个基站，用于计算节点位置的服务器和用于将基站与服务器连接的网络，参考站是设置有用于接收定位信号的定位信号接收部分，以及用于在定位信号接收部分接收到定位信号之后发送参考信号的参考信号准备部分，每个基站设置有用于接收定位信号的信号接收部分信号和参考信号;接收时间测量部分，用于根据定位信号和由信号接收部分接收到的参考信号检测指定的模式，并用于测量检测中的时间;以及通信部分，用于向服务器发送，从由接收时间测量部分测量的时间产生的时间信息和服务器被提供位置计算部分，用于基于从基站各站发送的时间信息来计算节点的位置。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005150824A Sensor with radio function 审中-公开
标题翻译：具有无线电功能的传感器
公开(公告)号：JP2005150824A
公开(公告)日：2005-06-09
申请号：JP2003381296
申请日：2003-11-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ARITA YUTAKA , KOKUBO MASARU , MIZUGAKI KENICHI
IPC分类号： H04M1/00 , G08B25/10 , H04M1/725 , H04M11/00
CPC分类号： G08B25/10
摘要： PROBLEM TO BE SOLVED: To intermittently perform transmission/reception of radio signals to/from a communication target.
SOLUTION: Power generated by power generation of a generating circuit 151 is accumulated in a capacitor 152. A sensor main body 120, an operating circuit 130, a radio transmission circuit 111, and a radio receiving circuit 112 are successively activated for only a predetermined time when the accumulated power reaches a predetermined level. Sensing information by the detection of the sensor main body 120 is processed in the operation circuit 130, information about the number of bites receivable by the radio reception circuit 112 is added to this processing result, and the added information is transmitted as sensor information from the radio transmission circuit 111 to a radio host 20. In the radio reception circuit 112 activated after the radio transmission circuit 111 is activated, a control information signal 32 from the radio host 20 is received, and this reception information is processed in the operation apparatus 130.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：间歇地执行到/从通信目标的无线电信号的发送/接收。解决方案：通过发电电路151的发电产生的功率被累积在电容器152中。传感器主体120，操作电路130，无线电发送电路111和无线电接收电路112仅被依次激活当累积功率达到预定水平时的预定时间。通过检测传感器主体120的感测信息在运算电路130中进行处理，将与无线电接收电路112可接受的比特数相关的信息添加到该处理结果中，并将附加信息作为传感器信息从无线电发送电路111发送到无线电主机20.在无线电发送电路111被激活之后被激活的无线电接收电路112中，接收到来自无线电主机20的控制信息信号32，并且该接收信息在操作装置130中被处理（C）2005，JPO＆NCIPI

5. 发明专利

JP2002271840A LOCATION MEASUREMENT SYSTEM 失效
公开(公告)号：JP2002271840A
公开(公告)日：2002-09-20
申请号：JP2001069613
申请日：2001-03-13
申请人： HITACHI LTD
发明人： MIZUGAKI KENICHI , KUWABARA MIKIO , OGINO ATSUSHI , ISHIDO TOMOAKI , DOI NOBUKAZU
IPC分类号： G01S5/10 , H04L9/08 , H04W4/02 , H04W12/02 , H04W12/08 , H04Q7/34
摘要： PROBLEM TO BE SOLVED: To provide a location measurement system that can provide a service where only a specifically approved terminal can measure the location. SOLUTION: A plurality of wireless base stations transmit encrypted transmission timing error information of the base stations and its decoding key to wireless terminals, the wireless terminals interpret the encrypted information to calculate signal propagation delays of the wireless base stations and to measure the location.

6. 发明专利

JP2009159619A Sensor with radio function 审中-公开
标题翻译：具有无线电功能的传感器
公开(公告)号：JP2009159619A
公开(公告)日：2009-07-16
申请号：JP2009024299
申请日：2009-02-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ARITA YUTAKA , KOKUBO MASARU , MIZUGAKI KENICHI
IPC分类号： H04M11/00 , H04M1/73 , H04W4/04 , H04W28/06 , H04W52/02
CPC分类号： Y02D70/00
摘要： PROBLEM TO BE SOLVED: To intermittently transmits/receives radio signals to/from a communication target. SOLUTION: The electric power generated with a power generating circuit 151 is accumulated in a capacitor 152. When the accumulated electric power reaches a set level, a sensor body 120, a calculation circuit 130, a radio transmission circuit 111 and a radio reception circuit 112 are sequentially triggered only for a certain period. The sensing information detected with the sensor body 120 is processed with the calculation device 130. The result of the process is added with the information about the number of bites that can be received with the radio reception circuit 112. The added information is transmitted as sensor information to a radio host 20 from the radio transmission circuit 111. The radio reception circuit 112 that is triggered after the radio transmission circuit 111 is triggered receives control information signal 32 from the radio host 20, and the reception information is processed with the calculation device 130. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：间歇地向/从通信目标发送/接收无线电信号。解决方案：用发电电路151产生的电力累积在电容器152中。当累积电力达到设定电平时，传感器体120，计算电路130，无线电发射电路111和无线电接收电路112仅在一段时间内被依次触发。利用计算装置130对传感器主体120检测到的感测信息进行处理。该处理结果附加有关无线电接收电路112可接收的比特数的信息。附加信息作为传感器传送从无线发送电路111向无线电主机20发送信息。在触发无线发送电路111之后触发的无线电接收电路112从无线电主机20接收控制信息信号32，并且利用计算装置处理接收信息（C）2009年，JPO＆INPIT

7. 发明专利

JP2006226740A POSITIONING SYSTEM AND RADIO BASE STATION 审中-公开
公开(公告)号：JP2006226740A
公开(公告)日：2006-08-31
申请号：JP2005038568
申请日：2005-02-16
申请人： HITACHI LTD
发明人： MIZUGAKI KENICHI , FUJIWARA RYOSUKE
IPC分类号： G01S5/06 , H04W64/00
摘要： PROBLEM TO BE SOLVED: To realize small-sizing of base station and cost reduction by reducing the number of matched filter necessary for a base station in a radio determination system. SOLUTION: Signals with the same waveform but different polarity are allotted to a signal for synchronizing and a signal for delay measurement. Thus, two kinds of signals are detected with a matched filter, and the two signals can be discriminated moreover by an easy means due to the difference in the polarities. COPYRIGHT: (C)2006,JPO&NCIPI

8. 发明专利

JP2005039392A Radio reception system and receiver 有权
标题翻译：无线电接收系统和接收机
公开(公告)号：JP2005039392A
公开(公告)日：2005-02-10
申请号：JP2003198186
申请日：2003-07-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUGAKI KENICHI , SUZUKI HIDEYA
IPC分类号： H04J13/00 , H04B1/719 , H04L25/49
CPC分类号： H04B1/719 , H04B1/71637 , H04L25/4902
摘要： PROBLEM TO BE SOLVED: To provide a radio reception system and a receiver which can suppress the reduction of the output of a correlation detection even in a site where a reception waveform is distorted due to the influence of a mutlipath etc., thereby enabling improving the receiving characteristic of the receiver without requiring addition of a new function or increase in transmission power on a transmitter side.
SOLUTION: Upon receiving (20) a packet, first, the receiver measures (21) distortion condition of a pulse waveform by using a propagation path state discriminating section included in a header section. Next, a template waveform creator creates (22) a corresponding template waveform on the basis of information about waveform distortion obtained by this measurement. The receiver applies (23) this template waveform to decoding information portion of the packet to reproduce (24) the transmitted information (24). In addition, the scope also includes a method in which the propagation path state discriminating section is provided on the top of the header to perform decoding other than the propagation path state discriminating section of the header by using the template waveform. Also, the receiver creates template waveforms for a plurality of receiving signal waveforms, and makes an average value of the outputs into a final template waveform.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：即使在由于多路径等的影响导致接收波形失真的地方，也能够抑制相关检测的输出的降低的无线接收系统和接收机，由此能够提高接收机的接收特性，而无需增加发送机侧的新功能或发送功率的增加。解决方案：接收（20）数据包时，首先，接收机通过使用包含在报头部分中的传播路径状态判别部分来测量（21）脉冲波形的失真状态。接下来，模板波形生成器基于通过该测量获得的关于波形失真的信息，创建（22）相应的模板波形。接收器将该模板波形（23）应用于分组的解码信息部分以再现（24）所发送的信息（24）。此外，该范围还包括一种方法，其中传播路径状态鉴别部分设置在标题的顶部，以通过使用模板波形来执行除标题的传播路径状态判别部分之外的解码。此外，接收机为多个接收信号波形创建模板波形，并将输出的平均值作为最终模板波形。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2004233176A Automatic minutes creating system using position information 审中-公开
公开(公告)号：JP2004233176A
公开(公告)日：2004-08-19
申请号：JP2003021302
申请日：2003-01-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUGAKI KENICHI , SUZUKI HIDEYA
IPC分类号： G01S5/06 , G10L15/00 , H04W4/02 , H04W4/08 , H04Q7/34
摘要： PROBLEM TO BE SOLVED: To provide a system for automatically creating a record of an audience and minutes through the use of results of measurement on the positions of terminals carried by the participants in the place of presentation of an academic conference etc. gathering a large audience.
SOLUTION: In the system, by measuring not the coordinates of the terminals but the relation among the relative positions of the terminals, it is possible to prevent positioning accuracy from being affected by coordinate error of a measuring apparatus and grasp the relation of the positions of a large number of terminals by one measurement.
COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2003035762A Position measuring system and position measuring method 有权
标题翻译：位置测量系统和位置测量方法
公开(公告)号：JP2003035762A
公开(公告)日：2003-02-07
申请号：JP2001219468
申请日：2001-07-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUGAKI KENICHI , KUWABARA MIKIO , ISHIDO TOMOAKI
IPC分类号： G01S5/12 , H04W88/02 , H04Q7/34
摘要： PROBLEM TO BE SOLVED: To provide a position measuring system capable of accurately measuring the present position of a moving terminal by utilizing a moving radio wave system including a repeater base station.
SOLUTION: In the position measuring system for calculating the present position on the basis of the receiving timing of the pilot signals from a plurality of base stations received at the moving terminal and the position data of the respective base stations and the transmission timing data of the pilot signals, the pilot signal from the base station becoming the master station of the repeater base station and the pilot signal transmitted from the repeater base station are discriminated and the position of the moving terminal is calculated by utilizing the receiving timing of the pilot signal from the repeater base station, the position data of the repeater base station and the transmission timing data of the pilot signal.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够通过利用包括中继器基站的移动无线电波系统来精确地测量移动终端的当前位置的位置测量系统。解决方案：在用于根据从移动终端接收的多个基站的导频信号的接收定时和各个基站的位置数据以及各个基站的发送定时数据计算当前位置的位置测量系统中，导频信号，从基站变为中继器基站的主站的导频信号和从中继器基站发送的导频信号被识别，并且通过利用来自中继器基站的导频信号的接收定时来计算移动终端的位置中继器基站，中继器基站的位置数据和导频信号的发送定时数据。

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