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1. 发明公开

EP1947470A3 Reducing cross-interference in a combined GPS receiver and communication system 审中-公开
标题翻译：在组合的GPS接收机和通信系统中的交叉干扰的减少
公开(公告)号：EP1947470A3
公开(公告)日：2011-09-28
申请号：EP07025009.7
申请日：2002-06-20
申请人： Snaptrack Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S1/00 , H04B1/38 , H04B15/02 , H04B1/10
CPC分类号： H04B1/126 , G01S5/0036 , G01S19/09 , G01S19/21 , H04B1/109 , H04B1/3805 , H04B15/02 , H04B2215/062
摘要： A method of operating a mobile device is disclosed. A first activity of the mobile device is detected. The following two operations are executed upon detection of the first activity; (i) wireless transmission of data over a wireless data link from a communication unit of the mobile device is disabled for a period of time, and (ii) a first control signal is transmitted from a communication unit to a satellite positioning system receiver of the mobile device, the first control signal enabling processing of signal positioning system signals received by the receiver during this period of time. The size of this period of time may be predetennined or adaptable.

2. 发明授权

EP1566655B1 Method and apparatus for determining time in a satellite positioning system 有权
标题翻译：用于确定卫星定位系统时间的方法和装置
公开(公告)号：EP1566655B1
公开(公告)日：2009-03-11
申请号：EP05010404.1
申请日：1999-04-12
申请人： Snaptrack Inc.
发明人： Sheynblat, Leonid , Krasner, Norman F.
IPC分类号： G01S5/14 , G01S5/00
CPC分类号： G01S5/0063 , G01S5/0009 , G01S5/0036 , G01S5/0045 , G01S19/09 , G01S19/11 , G01S19/23 , G01S19/235 , G01S19/24 , G01S19/246 , G01S19/25 , G01S19/256 , G01S19/37 , G01S19/39 , G01S19/42 , G04R20/04 , G04R20/06

3. 发明公开

EP1260830A3 A GPS receiver and method for processing GPS signals 失效
标题翻译： GPS接收器和方法，用于处理GPS信号
公开(公告)号：EP1260830A3
公开(公告)日：2003-05-28
申请号：EP02015127.0
申请日：1996-10-08
申请人： Snaptrack, Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S5/14 , G01S1/04
CPC分类号： H04B1/3805 , G01S5/0027 , G01S5/0036 , G01S5/0054 , G01S19/07 , G01S19/09 , G01S19/11 , G01S19/235 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/34 , G01S19/41 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J7/06 , H03J2200/11
摘要： A global positioning system (GPS) receiver has first circuitry for receiving and processing pseudorandom sequences transmitted by a number of GPS satellites. The first circuitry is configured to perform conventional correlation operations on the received pseudorandom sequences to determine pseudoranges from the GPS receiver to the GPS satellites. The GPS receiver also includes second circuitry coupled to the first circuitry. The second circuitry is configured to receive and process the pseudorandom sequences during blockage conditions. The second circuitry processes the pseudorandom sequences by digitizing and storing a predetermined record length of the received sequences and then performing fast convolution operations on the stored data to determine the pseudoranges. The GPS receiver may have a common circuitry for receiving GPS signals from in view satellites and downconverting the RF frequency of the received GPS signals to an intermediate frequency (IF). The IF signals are split into two signal paths, a first of which provides the conventional correlation processing to calculate the pseudoranges. During blockage conditions, the IF signal is passed to the second signal path wherein the IF signals are digitized and stored in memory and later processed using the fast convolution operations to provide the pseudoranges. Alternative arrangements for the two signal paths include separate downconverters or shared digitizers. One embodiment provides both signal paths on a single integrated circuit with shared circuitry executing computer-readable instructions to perform GPS signal processing appropriate to the reception conditions.

4. 发明授权

EP2020608B1 Method and apparatus for determining time for GPS receivers 失效
标题翻译：用于确定时间的GPS接收机的方法和装置
公开(公告)号：EP2020608B1
公开(公告)日：2016-09-07
申请号：EP08165134.1
申请日：1997-11-21
申请人： Snaptrack, Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S5/14 , G01S1/04 , H04B7/185 , G01S5/00 , G01S1/00
CPC分类号： G01S19/34 , G01S5/0036 , G01S5/0045 , G01S5/009 , G01S19/05 , G01S19/06 , G01S19/07 , G01S19/09 , G01S19/11 , G01S19/23 , G01S19/235 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/37 , G01S19/41 , G01S2205/008 , H03J7/04 , H03J7/047 , H04B1/00 , H04B1/0007 , H04B1/28 , H04B1/3805

5. 发明授权

EP1586916B1 GPS receiver and method for processing GPS signals 失效
标题翻译： GPS接收机和用于处理GPS信号的方法
公开(公告)号：EP1586916B1
公开(公告)日：2011-06-01
申请号：EP05012297.7
申请日：1996-10-08
申请人： Snaptrack, Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S5/14
CPC分类号： H04B1/0007 , G01S5/0027 , G01S5/0036 , G01S5/0054 , G01S19/05 , G01S19/09 , G01S19/254 , G01S19/34 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J7/04 , H03J7/06 , H03J2200/11 , H04B1/00 , H04B1/28 , H04B1/3805 , H04B2001/3894

6. 发明授权

EP1223434B1 Combined GPS positioning system and communications system utilizing shared circuitry 失效
标题翻译：合成GPS及通信系统具有共享电路
公开(公告)号：EP1223434B1
公开(公告)日：2010-08-25
申请号：EP02005555.4
申请日：1996-10-08
申请人： Snaptrack, Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S5/14
CPC分类号： H04B1/0007 , G01S5/0027 , G01S5/0036 , G01S5/0054 , G01S5/0063 , G01S19/07 , G01S19/09 , G01S19/235 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/34 , G01S19/37 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J7/04 , H03J7/06 , H03J2200/11 , H04B1/00 , H04B1/28 , H04B1/3805 , H04B2001/3894

7. 发明公开

EP2075591A1 Highly parallel GPS correlator system and method 失效
标题翻译： Hoch平行机GPS-Korrelatorsystem und -verfahren
公开(公告)号：EP2075591A1
公开(公告)日：2009-07-01
申请号：EP09003719.3
申请日：1998-05-29
申请人： Snaptrack, Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S1/00
CPC分类号： H04B1/7077 , G01S5/0036 , G01S5/0054 , G01S19/09 , G01S19/30 , G01S19/37 , H04B1/708 , H04B1/7093 , H04B2201/70707 , H04B2201/70715
摘要： A machine-readable storage medium storing instructions, which when executed by a processor, cause the processor to perform a method of processing satellite positioning system (SPS) signals, the method comprising:
receiving a set of SPS signal samples from a particular SPS transmitter;
performing a first correlation on the set of SPS signal samples with a first pseudorandom sequence using a first multiplier and adder to provide a first correlated result; and
performing a second correlation on the set of SPS signal samples with a second pseudorandom sequence using the first multiplier and adder to provide a second correlated result, and wherein the second pseudorandom sequence corresponds to the first pseudorandom sequence shifted in time, and wherein the adder comprises a loop integrator,
wherein performing the first and second correlations comprise comparing a unique identification code contained within the set of SPS signal samples with a locally generated identification code, wherein each of the first correlated result and the second correlated result comprises the result of a comparison of each phase of the unique identification code with a corresponding phase of the locally generated identification code, and
wherein each of the SPS signal samples is multiplied sequentially by successive half-chips of the locally generated identification code shifted in time and summed by the loop integrator with similar results for previous data samples.
摘要翻译：一种存储指令的机器可读存储介质，当由处理器执行时，所述指令使所述处理器执行处理卫星定位系统（SPS）信号的方法，所述方法包括：从特定SPS发送器接收一组SPS信号样本; 使用第一乘法器和加法器对具有第一伪随机序列的所述SPS信号样本集合执行第一相关，以提供第一相关结果; 以及使用所述第一乘法器和加法器对具有第二伪随机序列的所述一组SPS信号样本执行第二相关以提供第二相关结果，并且其中所述第二伪随机序列对应于在时间上移位的所述第一伪随机序列，并且其中所述加法器包括循环积分器，其中执行所述第一和第二相关包括将包含在所述SPS信号样本集合内的唯一识别码与本地生成的识别码进行比较，其中所述第一相关结果和所述第二相关结果中的每一个包括将唯一识别码的每个相位与本地生成的识别码的对应相位进行比较，并且其中每个SPS信号样本被顺序地乘以在时间上移位的本地生成的识别码的连续半码，并由循环相加与以前的数据相似的积分器 amples。

8. 发明授权

EP1306688B1 Method and apparatus for determining time in a satellite positioning system 有权
标题翻译：用于确定卫星定位系统时间的方法和装置
公开(公告)号：EP1306688B1
公开(公告)日：2006-02-22
申请号：EP02023862.2
申请日：1999-04-12
申请人： Snaptrack Inc.
发明人： Sheynblat, Leonid , Krasner, Norman F.
IPC分类号： G01S5/14
CPC分类号： G01S5/0063 , G01S5/0009 , G01S5/0036 , G01S5/0045 , G01S19/09 , G01S19/11 , G01S19/23 , G01S19/235 , G01S19/24 , G01S19/246 , G01S19/25 , G01S19/256 , G01S19/37 , G01S19/39 , G01S19/42 , G04R20/04 , G04R20/06

9. 发明公开

EP1306688A1 Method and apparatus for determining time in a satellite positioning system 有权
标题翻译： Verfahren und Vorrichtung zur Bestimmung der Zeit im Satellitenpositionierungssystem
公开(公告)号：EP1306688A1
公开(公告)日：2003-05-02
申请号：EP02023862.2
申请日：1999-04-12
申请人： Snaptrack Inc.
发明人： Sheynblat, Leonid , Krasner, Norman F.
IPC分类号： G01S5/14
CPC分类号： G01S5/0063 , G01S5/0009 , G01S5/0036 , G01S5/0045 , G01S19/09 , G01S19/11 , G01S19/23 , G01S19/235 , G01S19/24 , G01S19/246 , G01S19/25 , G01S19/256 , G01S19/37 , G01S19/39 , G01S19/42 , G04R20/04 , G04R20/06
摘要： A method and apparatus for determining a reference time associated with a satellite positioning system. In turn, the reference time, in one embodiment, may be used to determine other navigational information. Such navigational information may include, for example, the location/position of a satellite positioning system (SPS) receiver. In one embodiment, an error statistic is used to determine the reference time. According to another embodiment of the invention, two records, each representing at least a portion of a satellite message, are compared to determine time. In one implementation, the SPS receiver is mobile and operates in conjunction with a basestation to determine time and/or other navigational information according to one or a combination of the methods described.
摘要翻译：一种用于确定与卫星定位系统相关联的参考时间的方法和装置。反过来，在一个实施例中，参考时间可以用于确定其他导航信息。这种导航信息可以包括例如卫星定位系统（SPS）接收机的位置/位置。在一个实施例中，使用误差统计量来确定参考时间。根据本发明的另一个实施例，比较两个记录，每个记录表示卫星消息的至少一部分，以确定时间。在一个实现中，SPS接收机是可移动的并且与基站一起操作，以根据所描述的方法的一个或组合来确定时间和/或其他导航信息。

10. 发明授权

EP1418440B9 GPS receiver and method for processing GPS signals 失效
标题翻译： GPS接收器和方法，用于处理GPS信号
公开(公告)号：EP1418440B9
公开(公告)日：2012-01-18
申请号：EP04001156.1
申请日：1996-10-08
申请人： Snaptrack, Inc.
发明人： Krasner, Norman F.
IPC分类号： G01S5/14
CPC分类号： H04B1/0007 , G01S5/0027 , G01S5/0036 , G01S5/0054 , G01S19/05 , G01S19/09 , G01S19/254 , G01S19/34 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J7/04 , H03J7/06 , H03J2200/11 , H04B1/00 , H04B1/28 , H04B1/3805 , H04B2001/3894

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