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1. 发明授权

US08073465B2 Reciever, frequency deviation measuring unit and positioning and ranging system 有权
公开(公告)号：US08073465B2
公开(公告)日：2011-12-06
申请号：US12926862
申请日：2010-12-14
申请人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
发明人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H04W24/00 , H04L27/00
CPC分类号： G01S5/06 , H04J3/0682
摘要： In a system for measuring a time difference of arrival of signals for positioning, an accurate time difference is measured by a receiver which is reduced in power consumption, size, and cost. The system comprises a node (under measurement) for transmitting a positioning signal, a reference station for transmitting a reference signal, and a plurality of access points for receiving the positioning signal and reference signal, and a server connected to the plurality of access points through a network. Each of the plurality of access points measures a time difference between the reception of the positioning signal and the reception of the reference signal, and a frequency deviation from the reference station, using a clock signal and a signal for shifting the clock signal, and the server calculates the position of the node based on the measured time difference and frequency deviation.

2. 发明申请

US20110092223A1 Reciever, frequency deviation measuring unit and positioning and ranging system 有权
标题翻译：接收器，频率偏差测量单元和定位和测距系统
公开(公告)号：US20110092223A1
公开(公告)日：2011-04-21
申请号：US12926862
申请日：2010-12-14
申请人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
发明人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H04W24/00 , H04B7/00
CPC分类号： G01S5/06 , H04J3/0682
摘要： In a system for measuring a time difference of arrival of signals for positioning, an accurate time difference is measured by a receiver which is reduced in power consumption, size, and cost. The system comprises a node (under measurement) for transmitting a positioning signal, a reference station for transmitting a reference signal, and a plurality of access points for receiving the positioning signal and reference signal, and a server connected to the plurality of access points through a network. Each of the plurality of access points measures a time difference between the reception of the positioning signal and the reception of the reference signal, and a frequency deviation from the reference station, using a clock signal and a signal for shifting the clock signal, and the server calculates the position of the node based on the measured time difference and frequency deviation.
摘要翻译：在用于测量用于定位的信号的到达时间差的系统中，由功率消耗，尺寸和成本降低的接收器测量准确的时间差。该系统包括用于发送定位信号的节点（未测量），用于发送参考信号的参考站和用于接收定位信号和参考信号的多个接入点，以及连接到多个接入点的服务器一个网络。多个接入点中的每一个都使用时钟信号和用于移位时钟信号的信号来测量定位信号的接收和参考信号的接收之间的时间差以及与参考站的频率偏差，并且服务器根据测得的时差和频率偏差计算节点的位置。

3. 发明申请

US20070060079A1 Receiver, frequency deviation measuring unit and positioning and ranging system 有权
标题翻译：接收机，频偏测量单元及定位及测距系统
公开(公告)号：US20070060079A1
公开(公告)日：2007-03-15
申请号：US11356171
申请日：2006-02-17
申请人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
发明人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H03D7/16
CPC分类号： G01S5/06 , H04J3/0682
摘要： In a system for measuring a time difference of arrival of signals for positioning, an accurate time difference is measured by a receiver which is reduced in power consumption, size, and cost. The system comprises a node (under measurement) for transmitting a positioning signal, a reference station for transmitting a reference signal, and a plurality of access points for receiving the positioning signal and reference signal, and a server connected to the plurality of access points through a network. Each of the plurality of access points measures a time difference between the reception of the positioning signal and the reception of the reference signal, and a frequency deviation from the reference station, using a clock signal and a signal for shifting the clock signal, and the server calculates the position of the node based on the measured time difference and frequency deviation.
摘要翻译：在用于测量用于定位的信号的到达时间差的系统中，由功率消耗，尺寸和成本降低的接收器测量准确的时间差。该系统包括用于发送定位信号的节点（未测量），用于发送参考信号的参考站和用于接收定位信号和参考信号的多个接入点，以及连接到多个接入点的服务器一个网络。多个接入点中的每一个都使用时钟信号和用于移位时钟信号的信号来测量定位信号的接收和参考信号的接收之间的时间差以及与参考站的频率偏差，并且服务器根据测得的时差和频率偏差计算节点的位置。

4. 发明授权

US07881684B2 Receiver, frequency deviation measuring unit and positioning and ranging system 有权
标题翻译：接收机，频偏测量单元及定位及测距系统
公开(公告)号：US07881684B2
公开(公告)日：2011-02-01
申请号：US11356171
申请日：2006-02-17
申请人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
发明人： Tatsuo Nakagawa , Masayuki Miyazaki , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H03D7/16 , H04W24/00 , H04B15/00
CPC分类号： G01S5/06 , H04J3/0682
摘要： In a system for measuring a time difference of arrival of signals for positioning, an accurate time difference is measured by a receiver which is reduced in power consumption, size, and cost. The system comprises a node (under measurement) for transmitting a positioning signal, a reference station for transmitting a reference signal, and a plurality of access points for receiving the positioning signal and reference signal, and a server connected to the plurality of access points through a network. Each of the plurality of access points measures a time difference between the reception of the positioning signal and the reception of the reference signal, and a frequency deviation from the reference station, using a clock signal and a signal for shifting the clock signal, and the server calculates the position of the node based on the measured time difference and frequency deviation.
摘要翻译：在用于测量用于定位的信号的到达时间差的系统中，由功率消耗，尺寸和成本降低的接收器测量准确的时间差。该系统包括用于发送定位信号的节点（未测量），用于发送参考信号的参考站和用于接收定位信号和参考信号的多个接入点，以及连接到多个接入点的服务器一个网络。多个接入点中的每一个都使用时钟信号和用于移位时钟信号的信号来测量定位信号的接收和参考信号的接收之间的时间差以及与参考站的频率偏差，并且服务器根据测得的时差和频率偏差计算节点的位置。

5. 发明申请

US20080090588A1 Positioning system 审中-公开
标题翻译：定位系统
公开(公告)号：US20080090588A1
公开(公告)日：2008-04-17
申请号：US11902483
申请日：2007-09-21
申请人： Kenichi Mizugaki , Tatsuo Nakagawa , Ryosuke Fujiwara
发明人： Kenichi Mizugaki , Tatsuo Nakagawa , Ryosuke Fujiwara
IPC分类号： H04Q7/20 , H04M1/00
CPC分类号： H04W84/18 , H04W64/00 , Y02D70/00
摘要： A positioning system having a node (subject to positioning) transmitting a positioning signal; a reference station transmitting a reference signal; at least three base stations having a receiving part receiving the aforementioned positioning signal and the aforementioned reference signal; and a server connected to the base stations by a network; wherein the aforementioned server measures, using a clock signal and a signal shifting the concerned clock signal, the time difference with which the aforementioned positioning signal and the aforementioned reference signal are received by the aforementioned plurality of base stations as well as the frequency deviation with the aforementioned base stations; decides whether to carry out a correction with respect to the aforementioned measured time difference, on the basis of the measurement result of the aforementioned positioning signal; and computes the position of the aforementioned node, based on the aforementioned time deviation for which appropriate processing has been performed.
摘要翻译：具有发送定位信号的节点（定位）的定位系统; 传送参考信号的参考站; 至少三个基站具有接收上述定位信号的接收部分和上述参考信号; 以及通过网络连接到基站的服务器; 其中上述服务器使用时钟信号和相关时钟信号的信号测量上述多个基站接收上述定位信号和上述参考信号的时间差以及频率偏差上述基站; 基于上述定位信号的测量结果，决定是否对上述测量时间差进行校正; 并且基于已经执行了适当处理的上述时间偏差来计算上述节点的位置。

6. 发明申请

US20070217379A1 Terminal location system and positioning method 审中-公开
标题翻译：终端定位系统和定位方法
公开(公告)号：US20070217379A1
公开(公告)日：2007-09-20
申请号：US11651083
申请日：2007-01-09
申请人： Ryosuke Fujiwara , Masayuki Miyazaki , Kenichi Mizugaki
发明人： Ryosuke Fujiwara , Masayuki Miyazaki , Kenichi Mizugaki
IPC分类号： H04Q7/24
CPC分类号： G01S5/0289 , G01S5/0205 , G01S5/0221 , G01S5/0226 , G01S5/14 , H04W64/00 , H04W88/08
摘要： A location system of a configuration that facilitates initial introduction, maintenance, and system expansion. A terminal location system basically has at least (N+1) base station (here, N=1 to 3) and a location server and finds a position of a terminal performing wireless communication in N-dimensional coordinates. Further, the terminal location system calculates distances among the at least (N+1) base stations, finds relative coordinates of the base stations, evaluates the obtained relative coordinates, determines switching to terminal location processing of finding the position of the terminal, and finds the position of the terminal using propagation times of radio signals transmitted/received among the terminal and the base stations and the obtained relative coordinates of the base stations.
摘要翻译：配置的位置系统，有助于初始引入，维护和系统扩展。终端定位系统基本上至少具有（N + 1）个基站（这里N = 1〜3）和位置服务器，并且找到在N维坐标中执行无线通信的终端的位置。此外，终端定位系统计算至少（N + 1）个基站之间的距离，找到基站的相对坐标，评估所获得的相对坐标，确定切换到寻找终端位置的终端位置处理，并且找到终端使用终端和基站之间发送/接收的无线电信号的传播时间的位置以及所获得的基站的相对坐标。

7. 发明授权

US07912481B2 Receiver, receiver for positioning system using the same, and positioning method 有权
标题翻译：接收机，接收机用于定位系统使用，定位方法
公开(公告)号：US07912481B2
公开(公告)日：2011-03-22
申请号：US11767560
申请日：2007-06-25
申请人： Ryosuke Fujiwara , Kenichi Mizugaki , Masayuki Miyazaki
发明人： Ryosuke Fujiwara , Kenichi Mizugaki , Masayuki Miyazaki
IPC分类号： H04W24/00 , H04M11/04
CPC分类号： G01S5/0289 , G01S5/0215 , H04W64/00 , Y02D70/142
摘要： An invention for estimating the first path of an arrival signal by a method and device with a simple structure and lower power consumption. In this method, the nominal pulse repetition frequency or its integer multiple are A/D converted at a frequency less than the multiplicative inverse of the pulse width, the AD conversion timing is offset by time resolution Δt and the receive signal measured, data stored in a RAM, and the first path output time is estimated based on sequentially rearranging of the stored waveform data.
摘要翻译：一种用于通过具有简单结构和较低功耗的方法和装置来估计到达信号的第一路径的发明。在该方法中，标称脉冲重复频率或其整数倍以小于脉冲宽度的乘法反相的频率进行A / D转换，AD转换定时由时间分辨率＆Dgr; t和测量的接收信号，数据存储在RAM中，并且基于所存储的波形数据的顺序重排来估计第一路径输出时间。

8. 发明授权

US07664163B2 Receiver 有权
标题翻译：接收器
公开(公告)号：US07664163B2
公开(公告)日：2010-02-16
申请号：US11288349
申请日：2005-11-29
申请人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
发明人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
IPC分类号： H04B1/69
CPC分类号： H04B1/71637
摘要： With the objective of enhancing receiving performance of a receiver with respect to pulse signals spread by spread codes, the receiver comprises an RF front-end section which performs amplification, an AD converter section which AD-converts signals outputted from the RF front-end section, a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon, a reception environment measuring section which measures reception environment using the input signals of the baseband section, and a parameter setting section which sets parameters for respective parts on the basis of signals outputted from the reception environment measuring section. The parameter setting section sets the parameters for the respective parts to the optimum according to the environmental condition measured by the reception environment measuring section.
摘要翻译：为了提高接收机相对于由扩展码扩展的脉冲信号的接收性能，接收机包括执行放大的RF前端部分，对从RF前端部分输出的信号进行AD转换的AD转换器部分基带部分，其对AD转换器部分的输出进行反扩频并对其进行信号检测和解调;接收环境测量部分，其使用基带部分的输入信号测量接收环境;以及参数设置部分，其设置各自的参数基于从接收环境测量部输出的信号。参数设定部根据由接收环境测定部测定的环境条件，将各部分的参数设定为最佳。

9. 发明申请

US20060120441A1 Receiver 有权
标题翻译：接收器
公开(公告)号：US20060120441A1
公开(公告)日：2006-06-08
申请号：US11288349
申请日：2005-11-29
申请人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
发明人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
IPC分类号： H04B1/707 , H04L27/22
CPC分类号： H04B1/71637
摘要： With the objective of enhancing receiving performance of a receiver with respect to pulse signals spread by spread codes, the receiver comprises an RF front-end section which performs amplification, an AD converter section which AD-converts signals outputted from the RF front-end section, a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon, a reception environment measuring section which measures reception environment using the input signals of the baseband section, and a parameter setting section which sets parameters for respective parts on the basis of signals outputted from the reception environment measuring section. The parameter setting section sets the parameters for the respective parts to the optimum according to the environmental condition measured by the reception environment measuring section.
摘要翻译：为了提高接收机相对于由扩展码扩展的脉冲信号的接收性能，接收机包括执行放大的RF前端部分，对从RF前端部分输出的信号进行AD转换的AD转换器部分基带部分，其对AD转换器部分的输出进行反扩频并对其进行信号检测和解调;接收环境测量部分，其使用基带部分的输入信号测量接收环境;以及参数设置部分，其设置各自的参数基于从接收环境测量部输出的信号。参数设定部根据由接收环境测定部测定的环境条件，将各部分的参数设定为最佳。

10. 发明授权

US08265122B2 Receiver 失效
标题翻译：接收器
公开(公告)号：US08265122B2
公开(公告)日：2012-09-11
申请号：US12654659
申请日：2009-12-29
申请人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
发明人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
IPC分类号： H04B1/69 , H04B1/713
CPC分类号： H04B1/71637
摘要： With the objective of enhancing receiving performance of a receiver with respect to pulse signals spread by spread codes, the receiver comprises an RF front-end section which performs amplification, an AD converter section which AD-converts signals outputted from the RF front-end section, a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon, a reception environment measuring section which measures reception environment using the input signals of the baseband section, and a parameter setting section which sets parameters for respective parts on the basis of signals outputted from the reception environment measuring section. The parameter setting section sets the parameters for the respective parts to the optimum according to the environmental condition measured by the reception environment measuring section.
摘要翻译：为了提高接收机相对于由扩展码扩展的脉冲信号的接收性能，接收机包括执行放大的RF前端部分，对从RF前端部分输出的信号进行AD转换的AD转换器部分基带部分，其对AD转换器部分的输出进行反扩频并对其进行信号检测和解调;接收环境测量部分，其使用基带部分的输入信号测量接收环境;以及参数设置部分，其设置各自的参数基于从接收环境测量部输出的信号。参数设定部根据由接收环境测定部测定的环境条件，将各部分的参数设定为最佳。

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