公开(公告)号：EP2221642A2

公开(公告)日：2010-08-25

申请号：EP10161976.5

申请日：2007-09-06

申请人： Seiko Epson Corporation

发明人： Kimura, Akira

IPC分类号： G01S19/24 ,  G01S19/37

CPC分类号： G01S19/37 ,  G01S19/24

摘要： A slice set for a specific period of time is acquired from a storage area of a memory which is a ring buffer while changing the read position, and the signal strength total value of each slice set is calculated. The signal strengths of the slices include in the maximum strength slice set and the signal strengths of the slices preceding or subsequent to the maximum strength slice set are calculated, and the final signal read position is determined based on a read offset of the maximum strength slice. A GPS satellite signal is acquired and tracked based on the slice read from the determined signal read position, and a specific positioning process is performed.

摘要翻译： 在改变读取位置时，从作为环形缓冲器的存储器的存储区域中获取特定时间段的片段，并且计算每个片段集合的信号强度总值。 切片的信号强度包括在最大强度切片组中，并且计算在最大强度切片集合之前或之后的切片的信号强度，并且基于最大强度切片的读偏移来确定最终信号读取位置 。 基于从确定的信号读取位置读取的片段获取并跟踪GPS卫星信号，并且执行特定的定位处理。

公开(公告)号：EP1785740B1

公开(公告)日：2008-05-14

申请号：EP06023119.8

申请日：2006-11-07

申请人： Seiko Epson Corporation

发明人： Kimura, Akira

IPC分类号： G01S1/00

CPC分类号： G01S19/22

公开(公告)号：EP1916537A1

公开(公告)日：2008-04-30

申请号：EP07017467.7

申请日：2007-09-06

申请人： Seiko Epson Corporation

发明人： Kimura, Akira

IPC分类号： G01S1/00

CPC分类号： G01S19/37 ,  G01S19/24 ,  G01S19/29

摘要： Signals output from two filters included in a filter section 70 and differing in passband are respectively stored in different memories included in a memory section 80, and a positioning process is performed based on the signal stored in the memory. Specifically, the signal strength of a received signal is calculated by a coherent accumulation process and an incoherent accumulation process, and a signal system used for positioning is alternatively switched to a high-sensitivity system S1 or a high-accuracy system S2 as a result of determining whether or not the signal strength is equal to or greater than a threshold value.

摘要翻译： 包括在滤波器部分70中并且通带不同的两个滤波器的信号分别存储在包括在存储器部分80中的不同存储器中，并且基于存储在存储器中的信号执行定位处理。 具体地说，通过相干累积处理和非相干累积处理来计算接收信号的信号强度，并且用于定位的信号系统交替地切换到高灵敏度系统S1或高精度系统S2，作为 确定信号强度是否等于或大于阈值。

公开(公告)号：EP1916536A2

公开(公告)日：2008-04-30

申请号：EP07017466.9

申请日：2007-09-06

申请人： Seiko Epson Corporation

发明人： Kimura, Akira

IPC分类号： G01S1/00

CPC分类号： G01S19/37 ,  G01S19/24

摘要： A slice set for a specific period of time is acquired from a storage area of a memory which is a ring buffer while changing the read position, and the signal strength total value of each slice set is calculated. The signal strengths of the slices included in the maximum strength slice set and the signal strengths of the slices preceding or subsequent to the maximum strength slice set are calculated, and the final signal read position is determined based on a read offset of the maximum strength slice. A GPS satellite signal is acquired and tracked based on the slice read from the determined signal read position, and a specific positioning process is performed.

摘要翻译： 在改变读取位置时，从作为环形缓冲器的存储器的存储区域中获取特定时间段的片段，并且计算每个片段集合的信号强度总值。 计算包括在最大强度切片组中的切片的信号强度和在最大强度切片集合之前或之后的切片的信号强度，并且基于最大强度切片的读取偏移来确定最终信号读取位置 。 基于从确定的信号读取位置读取的片段获取并跟踪GPS卫星信号，并且执行特定的定位处理。

公开(公告)号：EP2221642B1

公开(公告)日：2012-02-08

申请号：EP10161976.5

申请日：2007-09-06

申请人： Seiko Epson Corporation

发明人： Kimura, Akira

IPC分类号： G01S19/24 ,  G01S19/37

CPC分类号： G01S19/37 ,  G01S19/24

公开(公告)号：EP1785740A1

公开(公告)日：2007-05-16

申请号：EP06023119.8

申请日：2006-11-07

申请人： SEIKO EPSON CORPORATION

发明人： Kimura, Akira

IPC分类号： G01S1/00

CPC分类号： G01S19/22

摘要： A positioning apparatus for positioning a current position based on satellite signals from positioning satellites includes: satellite signal receiving means, correlation information generating means, tentative code peak position information generating means, statistical processing range information generating means, statistical information generating means for generating statistical information by performing a statistical processing of the correlation values within the statistical processing range for each partial range specified as a limited range rather than the statistical processing range, beginning position information generating means, and direct wave code peak corresponding position information generating means for generating direct wave code peak corresponding position information which indicates a direct wave code peak corresponding position corresponding to a direct wave code peak, which is the maximum correlation value between the direct wave and the replica satellite signal, based on the beginning position information.

摘要翻译： 用于定位基于卫星信号从定位卫星的当前位置的定位装置，包括：卫星信号接收装置，相关信息产生装置，暂定码峰值位置信息生成单元，统计处理范围信息生成单元，统计信息发生装置，用于产生统计信息 通过统计处理范围指定为一个有限的范围内，而不是统计处理范围内的每个局部范围内执行所述相关值的统计处理，开始位置信息产生装置，以及直接波码峰值对应位置信息生成装置，用于产生直接波 码峰值位置相对应的信息，其指示的直接波码峰值对应位置对应于直接波码峰，所有这些是直达波和复制卫星信号之间的最大相关值 ，基于起始位置信息。

公开(公告)号：EP1684086A2

公开(公告)日：2006-07-26

申请号：EP06000740.8

申请日：2006-01-13

申请人： SEIKO EPSON CORPORATION

发明人： Kimura, Akira

IPC分类号： G01S5/10

CPC分类号： G01S5/0081 ,  G01S5/021

摘要： A time difference information supply system includes: a terminal unit for receiving satellite signals as signals from positioning satellites; and a plurality of communication base stations asynchronous with one another, which can communicate with the terminal unit and include base station time measuring means for measuring time of the communication base stations, transmission information producing means for producing transmission information containing transmission time, and transmission information transmitting means for transmitting the transmission information to the terminal unit on transmission radio waves. The terminal unit includes: distance information storing means for storing distance information indicating distances between the terminal unit and the communication base stations with which the terminal unit can communicate; satellite time synchronizing means for maintaining synchronicity with time of the positioning satellites based on the satellite signals from the plural positioning satellites; transmission radio wave receiving means for receiving the transmission radio waves from the plural communication base stations simultaneously or sequentially, reception time information producing means for producing reception time information indicating reception time of the transmission radio waves; communication base station distance acquiring means for acquiring distances between the terminal unit and the communication base stations from the distance information storing means; estimated reception time information producing means for producing estimated reception time information indicating estimated reception time of the transmission radio waves based on the transmission time contained in the transmission information and the distances between the terminal unit and the communication base stations; transmission time difference information producing means for producing transmission time difference information indicating differences of the transmission time based on the reception time information and the estimated reception time information; and transmission time difference information storing means for storing the transmission time difference information of the plural communication base stations.

摘要翻译： 时差信息供应系统包括：用于接收卫星信号来自定位卫星的信号的终端单元; 和通信基站异步彼此，其可与该终端单元通信，并且包括基站时间测量装置，用于测量所述通信基站的时间的复数，发送信息产生装置，用于发送信息包含发送时间，和发送信息 发送装置，用于发送信息到终端单元上发射无线电波。 所述终端单元包括：距离信息存储单元，存储距离信息表示终端单元和与该终端单元可通信的通信基站之间的距离; 卫星的时刻同步装置，用于基于从所述多个定位卫星的卫星信号的定位卫星的时间同步性维护; 发射无线电波接收装置，用于从所述多个通信基站接收到所述发送的无线电波同时或顺序，接收时间信息产生装置，用于接收时间信息表示发送的无线电波的接收时间; 通信基站的距离获得装置，用于获取所述终端单元，然后从距离信息存储装置中的通信基站之间的距离; 估计接收时间信息产生装置，用于估计接收时间信息，其指示基于包含在发送信息和终端单元和所述通信基站之间的距离的传送时的发送无线电波的估计接收时间; 传输时间差信息产生装置，用于传输的时间差信息指示基于所述接收时间信息和所估计的接收时间信息的传输时间差; 和传输时间差信息存储装置用于存储所述多个通信基站的传输时间差的信息。

公开(公告)号：EP1632784A1

公开(公告)日：2006-03-08

申请号：EP05018889.5

申请日：2005-08-31

申请人： SEIKO EPSON CORPORATION

发明人： Kimura, Akira

IPC分类号： G01S1/00

CPC分类号： G01S19/23 ,  G01S5/0036 ,  G01S19/25 ,  G01S19/28

摘要： A positioning system including: a terminal apparatus that acquires positioning positional information from a positioning apparatus that performs positioning calculation based on position related signals from plural positional information satellites; and a supplementary information providing apparatus that is capable of communicating with the terminal apparatus and provides the terminal apparatus with supplementary information for receiving the position related signals, wherein the supplementary information includes Doppler frequency information indicating a Doppler frequency that is a change in a frequency of the position related signals due to relative movement of the respective positional information satellites and the terminal apparatus, and the terminal apparatus includes: a reception frequency information generating unit that generates reception frequency information indicating a reception frequency at the time when the position related signals are received; a frequency difference information generating unit that generates frequency difference information indicating a frequency difference between a transmission frequency, which is a frequency at the time when the respective positional information satellites transmit the position related signals, and the reception frequency; a drift frequency information generating unit that generates drift frequency information indicating a drift frequency, which is shift of the reception frequency due to a factor inside the terminal apparatus, on the basis of the Doppler frequency information included in the supplementary information and the frequency difference information generated by the terminal apparatus.

摘要翻译： 一种定位系统，包括：终端装置，其从基于来自多个位置信息卫星的位置相关信号进行定位计算的定位装置获取定位位置信息; 以及补充信息提供装置，其能够与终端装置进行通信，向终端装置提供用于接收位置相关信号的补充信息，其中，所述补充信息包括表示作为频率变化的多普勒频率的多普勒频率信息 由于各个位置信息卫星和终端装置的相对运动引起的位置相关信号，终端装置包括：接收频率信息生成部，生成接收频率信息，该接收频率信息表示接收位置信息时的接收频率 ; 频率差信息生成部，其生成表示作为各位置信息卫星发送位置相关信号时的频率的发送频率与接收频率之间的频率差的频率差信息; 漂移频率信息生成单元，基于辅助信息中包含的多普勒频率信息和频率差异信息，生成表示漂移频率的漂移频率信息，所述漂移频率信息是由终端装置内的因素引起的接收频率的偏移 由终端装置产生。