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1. 发明授权

US06889051B2 Method and apparatus for measuring transmitting time offset of a base station 失效
标题翻译：用于测量基站的发射时间偏移的方法和装置
公开(公告)号：US06889051B2
公开(公告)日：2005-05-03
申请号：US10046509
申请日：2002-01-16
申请人： Atsushi Ogino , Mikio Kuwahara , Tomoaki Ishifuji , Kenzaburo Fujishima
发明人： Atsushi Ogino , Mikio Kuwahara , Tomoaki Ishifuji , Kenzaburo Fujishima
IPC分类号： G01S5/10 , G01S19/14 , H04B7/08 , H04B7/155 , H04B7/26 , H04W56/00 , H04W64/00 , H04W88/02 , H04Q7/20
CPC分类号： G01S5/10 , G01S5/02 , G01S5/021 , G01S19/235
摘要： An offset measuring method according to the present invention accurately measures a transmitting time offset of a base station. The offset measuring method for receiving signals from the radio base station and measuring the transmitting time offset of the radio base station includes the steps of calculating estimated values of transmitting time offset based on signals received at a plurality of observation points and selecting a minimum from the estimated offsets to determine the selected minimum value as transmitting time offset of the radio base station.
摘要翻译：根据本发明的偏移测量方法精确地测量基站的发射时间偏移。用于从无线电基站接收信号并测量无线电基站的发送时间偏移的偏移测量方法包括以下步骤：基于在多个观测点处接收到的信号来计算发送时间偏移的估计值，并从将所选择的最小值确定为无线电基站的发射时间偏移的估计偏移量。

2. 发明授权

US06671649B2 Position calculation method and position calculation apparatus 失效
公开(公告)号：US06671649B2
公开(公告)日：2003-12-30
申请号：US10390721
申请日：2003-03-19
申请人： Mikio Kuwahara , Tomoaki Ishifuji , Takashi Yano , Kenzaburo Fujishima
发明人： Mikio Kuwahara , Tomoaki Ishifuji , Takashi Yano , Kenzaburo Fujishima
IPC分类号： G01C1700
CPC分类号： G01S5/14
摘要： A position calculation method that calculates the correct position of a terminal even when errors are not distributed symmetrically for positive and negative values, by calculating the position of a terminal using the delay time of received signals. The method calculates a first range that is a difference between a range from the terminal to each of antenna and a range from the terminal to a base antenna, the range being calculated from a wireless signal delay time; calculates a second range that is a difference between a range from an assumed terminal position for calculation to each antenna and a range from the assumed terminal position for calculation to the base antenna; calculates a likelihood of the position of the terminal, repeats these procedures to obtain a point where the likelihood is maximized, and determines an obtained most likely solution as the position of the terminal.

3. 发明授权

US06556943B2 Position calculation method and position calculation apparatus 有权
公开(公告)号：US06556943B2
公开(公告)日：2003-04-29
申请号：US09918641
申请日：2001-08-01
申请人： Mikio Kuwahara , Tomoaki Ishifuji , Takashi Yano , Kenzaburo Fujishima
发明人： Mikio Kuwahara , Tomoaki Ishifuji , Takashi Yano , Kenzaburo Fujishima
IPC分类号： H04Q720
CPC分类号： G01S5/14
摘要： A position calculation method that calculates the correct position of a terminal even when errors are not distributed symmetrically for positive and negative values, by calculating the position of a terminal using the delay time of received signals. The method calculates a first range that is a difference between a range from the terminal to each of antenna and a range from the terminal to a base antenna, the range being calculated from a wireless signal delay time; calculates a second range that is a difference between a range from an assumed terminal position for calculation to each antenna and a range from the assumed terminal position for calculation to the base antenna; calculates a likelihood of the position of the terminal, repeats these procedures to obtain a point where the likelihood is maximized, and determines an obtained most likely solution as the position of the terminal.

4. 发明授权

US07711376B2 Method of providing location service using CDMA-based cellular phone system, a method of measuring location and location system 失效
标题翻译：使用基于CDMA的蜂窝电话系统提供定位服务的方法，测量位置和位置系统的方法
公开(公告)号：US07711376B2
公开(公告)日：2010-05-04
申请号：US09781187
申请日：2001-02-13
申请人： Atsushi Ogino , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Atsushi Ogino , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： H04W24/00
CPC分类号： H04W64/00
摘要： At least three base stations transmit a specific signal pattern at given intervals. This allows a mobile station that received this signal pattern to locate itself by using the positional information about the base stations, sending timing (or information on phase shift from the reference time) of each signal pattern from the base stations, and signal pattern receiving time information. At least one of the above base stations changes the sending timing of the signal pattern. On this occasion, the mobile terminal or station is notified of the altered reference time offset (or information on phase shift from the reference time) of the sending timing or updated sending timing of the signal pattern.
摘要翻译：至少三个基站以给定的间隔发送特定信号模式。这允许通过使用关于基站的位置信息来接收该信号模式的移动台定位自身，从基站发送每个信号模式的定时（或者从参考时间的相移信息）和信号模式接收时间信息。上述基站中的至少一个基站改变信号模式的发送定时。在这种情况下，向发送定时或更新的信号模式的发送定时通知移动终端或站改变的基准时间偏移（或参考时间的相移信息）。

5. 发明授权

US06865394B2 Location detection method, location detection system and location detection program 失效
标题翻译：位置检测方法，位置检测系统和位置检测程序
公开(公告)号：US06865394B2
公开(公告)日：2005-03-08
申请号：US10050856
申请日：2002-01-18
申请人： Atsushi Ogino , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Atsushi Ogino , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： G01S1/02 , G01S5/14 , G01S19/25 , H04Q7/20
CPC分类号： G01S1/022 , G01S5/14
摘要： A positioning method, which is related to a technique to measure a correct position of a terminal by preventing time required for the position measurement, of calculating a position of a receiver according to signals from a plurality of wireless transmitters includes a first step of measuring propagation delay time of the signal from each of the wireless transmitters and calculating a position of the receiver and a standard deviation about measuring distance error, a second step of calculating a positioning error of the receiver a third step of determining, according to the positioning error calculated by the second step, wireless transmitters in directions nearer to a direction in which the positioning error is large, and a fourth step of re-detecting signals from the wireless transmitters determined by the third step and thereby re-calculating the position of the receiver.
摘要翻译：与通过防止位置测量所需的时间来测量终端的正确位置的技术相关的定位方法根据来自多个无线发射机的信号来计算接收机的位置的步骤包括：测量传播的第一步骤来自每个无线发射机的信号的延迟时间和计算接收机的位置以及关于测量距离误差的标准偏差;计算接收机的定位误差的第二步骤，第三步骤，根据所计算出的定位误差通过第二步骤，在更靠近定位误差大的方向的方向上的无线发射机，以及重新检测由第三步骤确定的无线发射机的信号，从而重新计算接收机的位置的第四步骤。

6. 发明授权

US06900753B2 Method for measuring distance and position using spread spectrum signal, and an equipment using the method 有权
标题翻译：使用扩频信号测量距离和位置的方法，以及使用该方法的设备
公开(公告)号：US06900753B2
公开(公告)日：2005-05-31
申请号：US10680089
申请日：2003-10-08
申请人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： G01S1/02 , G01S1/04 , G01S5/10 , G01S19/19 , G01S19/25 , H04B1/7113 , H04J13/00 , H04W64/00 , H04W88/02 , G01S13/08
CPC分类号： G01S5/0215 , G01S1/026 , G01S1/045 , G01S5/10 , H04B1/70755 , H04B2201/70715
摘要： By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation section 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timing that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by previously set timing behind said reference timing is sent from receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
摘要翻译：通过使用从第一阈值计算部105接收到的延迟分布创建部102和第一阈值330所产生的延迟分布，第一阈值定时检测部103从全部仅选择超过第一阈值的最早的接收定时延迟分布中的相关值变为最大的定时。通过使用从第二阈值计算部107接收到的接收定时和第二阈值331，基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113的从基准定时之后预先设定的定时延迟的定时。

7. 发明授权

US06704547B2 Wireless communication base station transmission timing offset correction system 失效
标题翻译：无线通信基站传输定时偏移校正系统
公开(公告)号：US06704547B2
公开(公告)日：2004-03-09
申请号：US09793908
申请日：2001-02-28
申请人： Mikio Kuwahara , Tomoaki Ishifuji , Nobukazu Doi
发明人： Mikio Kuwahara , Tomoaki Ishifuji , Nobukazu Doi
IPC分类号： H04B1700
CPC分类号： H04J3/0685 , H04J3/0644 , H04J3/0688
摘要： An apparatus, system and method for measuring timing of a signal transmitted from a wireless base station antenna. The apparatus and system include a wireless base station antenna that transmits a first signal, and a transmission timing measurement apparatus having a first antenna and a second antenna that receives an accurate time value and the first signal, and that outputs an offset of the first signal from the accurate time value. The method includes receiving an accurate time, receiving the reception time transmitted from the wireless base station antenna, receiving the reception time value and the accurate time value, and comparing of the reception time value and the accurate time value.
摘要翻译：一种用于测量从无线基站天线发送的信号的定时的装置，系统和方法。该装置和系统包括发送第一信号的无线基站天线和具有接收准确时间值和第一信号的第一天线和第二天线的发送定时测量装置，并且输出第一信号的偏移从准确的时间值。该方法包括接收准确的时间，接收从无线基站天线发送的接收时间，接收接收时间值和准确时间值，以及比较接收时间值和准确时间值。

8. 发明授权

US06459402B1 Method for measuring distance and position using spectrum signal, and an equipment using the method 有权
标题翻译：使用频谱信号测量距离和位置的方法，以及使用该方法的设备
公开(公告)号：US06459402B1
公开(公告)日：2002-10-01
申请号：US09640018
申请日：2000-08-17
申请人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： G01S1308
CPC分类号： G01S5/0215 , G01S1/026 , G01S1/045 , G01S5/10 , H04B1/70755 , H04B2201/70715
摘要： Under a multi-path environment, the receive timing for an incoming wave of the minimum propagation delay time cannot be accurately measured in the prior art. By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation section 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timings that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, the reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by a previously set timing behind said reference timing is sent from the receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
摘要翻译：在多路径环境下，在现有技术中不能精确地测量最小传播延迟时间的入射波的接收定时。通过使用从第一阈值计算部105接收到的延迟分布创建部102和第一阈值330所产生的延迟分布，第一阈值定时检测部103从全部仅选择超过第一阈值的最早的接收定时延迟分布中的相关值变为最大的定时。通过使用从第二阈值计算部107接收的接收定时和第二阈值331，基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113延迟的参考定时之后的先前设定的定时的定时。

9. 发明授权

US07969347B2 Method for measuring distance and position using spread spectrum signal, and an equipment using the method 有权
标题翻译：使用扩频信号测量距离和位置的方法，以及使用该方法的设备
公开(公告)号：US07969347B2
公开(公告)日：2011-06-28
申请号：US12651780
申请日：2010-01-04
申请人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： G01S13/08 , G01S13/00
CPC分类号： G01S5/0215 , G01S1/026 , G01S1/045 , G01S5/10 , H04B1/70755 , H04B2201/70715
摘要： By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timing that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by previously set timing behind said reference timing is sent from receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
摘要翻译：通过使用由延迟分布创建部102创建的延迟分布和从第一阈值计算105接收到的第一阈值330，第一阈值定时检测部103仅从超过第一阈值的时间选择最早的接收定时定时延迟分布中的相关值变为最大值。通过使用从第二阈值计算部107接收到的接收定时和第二阈值331，基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113的从基准定时之后预先设定的定时延迟的定时。

10. 发明授权

US07663532B2 Method for measuring distance and position using spread spectrum signal, and an equipment using the method 失效
标题翻译：使用扩频信号测量距离和位置的方法，以及使用该方法的设备
公开(公告)号：US07663532B2
公开(公告)日：2010-02-16
申请号：US11976979
申请日：2007-10-30
申请人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： G01S13/08 , G01S13/00
CPC分类号： G01S5/0215 , G01S1/026 , G01S1/045 , G01S5/10 , H04B1/70755 , H04B2201/70715
摘要： By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timing that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by previously set timing behind said reference timing is sent from receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
摘要翻译：通过使用由延迟分布创建部102创建的延迟分布和从第一阈值计算105接收到的第一阈值330，第一阈值定时检测部103仅从超过第一阈值的时间选择最早的接收定时定时延迟分布中的相关值变为最大值。通过使用从第二阈值计算部107接收到的接收定时和第二阈值331，基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113的从基准定时之后预先设定的定时延迟的定时。

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