公开(公告)号：US5909640A

公开(公告)日：1999-06-01

申请号：US944832

申请日：1997-10-06

申请人： Leland M. Farrer ,  Joseph S. Chan ,  Robert F. Garry, Jr. ,  Charles A. Glorioso ,  Norman F. Krasner

发明人： Leland M. Farrer ,  Joseph S. Chan ,  Robert F. Garry, Jr. ,  Charles A. Glorioso ,  Norman F. Krasner

IPC分类号： H04B1/713 ,  H04B1/7136 ,  H04B7/12 ,  H04B1/54

CPC分类号： H04B1/7136 ,  H04B1/713 ,  H04B7/12

摘要： A wireless communication system with one or more remote transceivers for transmitting a wireless data signal at an actual frequency that is different than the expected frequency and a base transceiver that can automatically adjust to receive the actual frequency. Each remote transceiver is adapted to initiate a wireless data signal at a selected time that is unique to that remote transceiver. The expected frequency is sequentially pre-determined in a pseudo-random sequence with each remote transceiver having a unique sequence. The base transceiver can respond to the remote transceiver at the actual frequency. Both the remote transceiver and the base transceiver can convert the wireless signals in a single step to baseband.

摘要翻译： 一种具有一个或多个远程收发器的无线通信系统，用于以不同于预期频率的实际频率发送无线数据信号，以及可以自动调整以接收实际频率的基本收发器。 每个远程收发器适于在该远程收发器唯一的选定时间发起无线数据信号。 预期频率在伪随机序列中依次预先确定，每个远程收发器具有唯一的序列。 基站收发器可以以实际频率响应远程收发器。 远程收发器和基本收发器都可以将单个步骤中的无线信号转换为基带。

公开(公告)号：US5734966A

公开(公告)日：1998-03-31

申请号：US376109

申请日：1995-01-20

申请人： Leland M. Farrer ,  Joseph S. Chan ,  Robert F. Garry, Jr. ,  Charles A. Glorioso ,  Norman F. Krasner

发明人： Leland M. Farrer ,  Joseph S. Chan ,  Robert F. Garry, Jr. ,  Charles A. Glorioso ,  Norman F. Krasner

IPC分类号： H04B1/713 ,  H04B1/7136 ,  H04B7/12 ,  H04B1/54

CPC分类号： H04B1/7136 ,  H04B1/713 ,  H04B7/12

摘要： A wireless communication system with one or more remote transceivers for transmitting a wireless data signal at an actual frequency that is different than the expected frequency and a base transceiver that can automatically adjust to receive the actual frequency. Each remote transceiver is adapted to initiate a wireless data signal at a selected time that is unique to that remote transceiver. The expected frequency is sequentially pre-determined in a pseudo-random sequence with each remote transceiver having a unique sequence. The base transceiver can respond to the remote transceiver at the actual frequency. Both the remote transceiver and the base transceiver can convert the wireless signals in a single step to baseband.

公开(公告)号：US20100182197A1

公开(公告)日：2010-07-22

申请号：US12689922

申请日：2010-01-19

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S19/42

CPC分类号： G01S19/246 ,  G01S5/0018 ,  G01S19/243 ,  G01S2205/008

摘要： A method and apparatus for processing satellite positioning system (SPS) signals which are weak in level. In one embodiment, a SPS receiver receives at least two signal samples representing, at least in part, common information, wherein the two signal samples are associated with one or more satellite messages. By combining the two signal samples, navigation information (e.g., time, position, velocity, etc.) may be determined based on the combination of the two signal samples. According to another embodiment, the two signal samples are differentially demodulated and summed together to form the combination.

摘要翻译： 一种处理水平较弱的卫星定位系统（SPS）信号的方法和装置。 在一个实施例中，SPS接收器至少部分地接收表示至少两个信号样本的公共信息，其中两个信号采样与一个或多个卫星消息相关联。 通过组合两个信号样本，可以基于两个信号样本的组合来确定导航信息（例如，时间，位置，速度等）。 根据另一个实施例，两个信号样本被差分解调并相加在一起以形成组合。

公开(公告)号：US07706754B2

公开(公告)日：2010-04-27

申请号：US11339243

申请日：2006-01-24

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： H04B1/40 ,  H04L29/06 ,  H04W36/00 ,  H04W24/00

CPC分类号： H04W56/0035 ,  H04B7/2675 ,  H04B7/2693 ,  H04W92/10 ,  H04W92/20

摘要： Methods and apparatuses for frequency synchronizing basestations in a cellular communication system. In one aspect of the invention, a method to predict a timing of transmission of a basestation in a cellular communication system includes: receiving a first time tag for a first timing marker in a first cellular signal transmitted from the basestation; receiving a second time tag of a second timing marker in a second cellular signal transmitted from the basestation; and computing a frequency related to the basestation using the first and second time tags. Each of the time tags are determined using at least one satellite positioning system signal received at a mobile station which receives the corresponding time marker.

摘要翻译： 用于蜂窝通信系统中频率同步基站的方法和装置。 在本发明的一个方面，一种用于预测蜂窝通信系统中的基站的传输定时的方法包括：从基站发送的第一蜂窝信号中接收第一定时标记的第一时间标签; 在从所述基站发送的第二蜂窝信号中接收第二定时标记的第二时间标签; 以及使用第一和第二时间标签计算与基站相关的频率。 使用在接收对应的时间标记的移动站处接收到的至少一个卫星定位系统信号来确定每个时间标签。

公开(公告)号：US06215442B1

公开(公告)日：2001-04-10

申请号：US09062232

申请日：1998-04-16

申请人： Leonid Sheynblat ,  Norman F. Krasner

发明人： Leonid Sheynblat ,  Norman F. Krasner

IPC分类号： H04B7185

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, a relative velocity between an SPS receiver and a set of one or more satellites is used to determine an offset between time as indicated by the SPS receiver and the reference time. According to another embodiment of the invention, an error statistic is used to determine the reference time. According to yet 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，SPS接收机和一个或多个卫星的集合之间的相对速度用于确定由SPS接收机指示的时间与参考时间之间的偏移。 根据本发明的另一实施例，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接收机是移动的并且与基站一起操作以根据所描述的方法中的一个或组合来确定时间和/或其他导航信息。

公开(公告)号：US6104340A

公开(公告)日：2000-08-15

申请号：US138946

申请日：1998-08-24

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S1/00 ,  G01S5/00 ,  G01S5/14 ,  G01S19/07 ,  G01S19/09 ,  G01S19/11 ,  G01S19/23 ,  G01S19/25 ,  G01S19/34 ,  G01S19/41 ,  G06F1/00 ,  H01Q1/27 ,  H01Q21/28 ,  H03D7/16 ,  H03J7/06 ,  H04B1/38 ,  G01S5/02

CPC分类号： H04B1/3805 ,  G01S19/07 ,  G01S19/09 ,  G01S19/235 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/34 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0054 ,  H01Q1/273 ,  H01Q21/28 ,  H03J7/06 ,  G01S19/11 ,  G01S19/41 ,  G01S2205/008 ,  G06F2221/2111 ,  H03D7/163 ,  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 stoning 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 con-elation 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.

摘要翻译： 全球定位系统（GPS）接收机具有用于接收和处理由多个GPS卫星发送的伪随机序列的第一电路。 第一电路被配置为对所接收的伪随机序列执行传统的相关操作，以确定从GPS接收器到GPS卫星的伪距离。 GPS接收机还包括耦合到第一电路的第二电路。 第二电路被配置为在阻塞状态期间接收和处理伪随机序列。 第二电路通过对接收到的序列的预定记录长度进行数字化和伪造处理伪随机序列，然后对所存储的数据执行快速卷积运算以确定伪距离。 GPS接收机可以具有用于从视频卫星接收GPS信号并将接收的GPS信号的RF频率下变频到中频（IF）的公共电路。 IF信号分为两个信号路径; 第一个提供常规的连接处理来计算伪距离。 在阻塞条件期间，IF信号被传递到第二信号路径，其中IF信号被数字化并存储在存储器中，并且随后使用快速卷积运算来处理以提供伪距。 两个信号路径的替代布置包括单独的下变频器或共享数字化仪。 一个实施例在单个集成电路上提供两个信号路径，共享电路执行计算机可读指令以执行适合接收条件的GPS信号处理。

公开(公告)号：US6104338A

公开(公告)日：2000-08-15

申请号：US072405

申请日：1998-05-04

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S1/00 ,  G01S5/00 ,  G01S5/14 ,  G01S19/08 ,  G01S19/09 ,  G01S19/41 ,  H04Q7/34 ,  G01S5/02 ,  H04B7/185

CPC分类号： G01S19/41 ,  G01S19/08 ,  G01S19/09 ,  G01S5/0036

摘要： A method and an apparatus for operating a satellite positioning system (SPS) receiver in a client/server architecture. In one example of a method, a first plurality of pseudoranges is determined at a first time and a second plurality of pseudoranges is determined at a second time which is after the first time. The first and the second pluralities of pseudoranges are stored. After the second time, the first and the second pluralities of pseudoranges are transmitted to a location server, normally in one transmission. The location server then determines a first position from the first plurality of pseudoranges and a second position from the second plurality of pseudoranges. In one particular example, the first and second pseudoranges are transmitted in response to a predetermined type of event, and the location server stores a collection of differential GPS data which has been collected over time.

摘要翻译： 一种用于在客户端/服务器架构中操作卫星定位系统（SPS）接收机的方法和装置。 在方法的一个示例中，在第一时间确定第一多个伪距，并且在第一次之后的第二时间确定第二多个伪距。 存储第一和第二多个伪距。 在第二次之后，通常在一个传输中将第一和第二多个伪距发送到位置服务器。 然后，位置服务器从第一多个伪距确定第一位置，并从第二多个伪距确定第二位置。 在一个特定示例中，响应于预定类型的事件来发送第一和第二伪距，并且位置服务器存储随时间收集的差分GPS数据的集合。

公开(公告)号：US6016119A

公开(公告)日：2000-01-18

申请号：US162314

申请日：1998-09-28

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S1/00 ,  G01S5/00 ,  G01S5/14 ,  G01S19/25 ,  G06F1/00 ,  H01Q1/27 ,  H01Q21/28 ,  H03D7/16 ,  H03J7/06 ,  H04B1/38 ,  G01S5/02 ,  H04B7/185

CPC分类号： G01S19/235 ,  G01S19/07 ,  G01S19/09 ,  G01S19/34 ,  G01S19/37 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/009 ,  H01Q1/273 ,  H01Q21/28 ,  H03J7/06 ,  H04B1/3805 ,  G01S19/11 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/41 ,  G01S2205/008 ,  G01S5/0045 ,  G06F2221/2111 ,  H03D7/163 ,  H03J2200/11 ,  H04B2001/3894

摘要： A positioning sensor receives and stores a predetermined record length of positioning signals while in a fix position located such that the positioning sensor can receive positioning signals. Thereafter, the stored positioning signals are processed to determine the geographic location of the fix position. The fix position may correspond to a location of an object of interest or it may be in a known location relative to the position of the object, in which case once the geographic location of the fix position has been computed, the geographic location of the object can be derived. The positioning sensor includes a Snapshot GPS receiver which may collect and process GPS signals transmitted by GPS satellites using fast convolution operations to compute pseudoranges from the GPS satellites to the fix position. Alternatively, these computations may be performed at a basestation. The computed pseudoranges may then used to determine the geographic location of the fix position. The positioning sensor may be equipped with depth sensing means, such as a pressure sensor, which allows a determination of the depth of submerged object to be made. The positioning sensor may further be equipped with signal detecting means for determining when the positioning sensor is in the fix position.

摘要翻译： 定位传感器接收并存储定位信号的预定记录长度，同时位于定位传感器可以接收定位信号的固定位置。 此后，处理存储的定位信号以确定固定位置的地理位置。 固定位置可以对应于感兴趣对象的位置，或者它可以在相对于对象的位置的已知位置中，在这种情况下，一旦已经计算了定位位置的地理位置，该对象的地理位置 可以派生。 定位传感器包括一个快照GPS接收器，它可以采集快速卷积运算来收集和处理由GPS卫星发射的GPS信号，以计算从GPS卫星到固定位置的伪距。 或者，这些计算可以在基站执行。 然后，计算的伪距可用于确定固定位置的地理位置。 定位传感器可以配备有诸如压力传感器的深度感测装置，其允许确定要被制造的浸没物体的深度。 定位传感器还可以配备有用于确定定位传感器何时处于固定位置的信号检测装置。

公开(公告)号：US09035829B2

公开(公告)日：2015-05-19

申请号：US13535128

申请日：2012-06-27

申请人： Arun Raghupathy ,  Andrew Sendonaris ,  Norman F. Krasner

发明人： Arun Raghupathy ,  Andrew Sendonaris ,  Norman F. Krasner

IPC分类号： G01S1/08 ,  G01S5/02 ,  G01S19/11 ,  G01S19/46

CPC分类号： G01S5/0226 ,  G01S19/11 ,  G01S19/46 ,  H04W64/00

摘要： Devices, systems, and methods for sending positional information from transmitters/beacons are disclosed. In one implementation a transmitter generates a range block including a ranging signal and a hybrid block including positioning data, and sends the range block and hybrid block in predefined slots in a transmit frame. A receiver in a user device receives signals from a plurality of transmitters and generates position/location information using trilateration and measured altitude information in comparison with transmitter altitude information.

摘要翻译： 公开了用于从发射机/信标发送位置信息的装置，系统和方法。 在一个实现中，发射机生成包括测距信号的范围块和包括定位数据的混合块，并且将发射帧中的预定义时隙中的距离块和混合块发送。 用户设备中的接收机从多个发射机接收信号，并且与发射机高度信息相比，使用三边测量和测量的高度信息来生成位置/位置信息。

公开(公告)号：US20110103433A1

公开(公告)日：2011-05-05

申请号：US12763026

申请日：2010-04-19

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： H04B1/00

CPC分类号： G01S19/29 ,  G01S19/09 ,  G01S19/25 ,  G01S19/30 ,  H04B1/707 ,  H04B2201/70715

摘要： A method and apparatus for receiving a signal from transmitters such as GPS satellites, for fixing the location of the receiver. Each of the transmitted signals includes a unique periodically-repeating sequence. A received signal is stored by the receiver for at least two repetitions of the periodically-repeating sequence. FFT operations are performed, and the resulting data frequency samples are pruned responsive to a hypothesized residual frequency, a procedure which significantly reduces the total number of subsequent calculations and therefore significantly reduces processing time. A correlation series is determined from the pruned samples and reference frequency samples corresponding to a hypothesized transmitter. If a match is found in the examination of this series, a code phase offset is determined; if not the process is repeated with another hypothesized residual frequency. Multiple correlation series similarly obtained may also be incoherently combined prior to this examination. The apparatus and method disclosed herein is particularly useful for combined position location and communication systems, especially those that are unsynchronized, such as assisted GPS (“A-GPS”) utilized on GSM and UMTS cellular telephone systems.

摘要翻译： 一种用于从诸如GPS卫星的发射机接收信号的方法和装置，用于固定接收机的位置。 每个发送的信号包括唯一的周期性重复序列。 接收信号由接收机存储至少两次周期性重复序列。 执行FFT操作，并且响应于假设的残余频率修剪所得到的数据频率样本，这是显着减少后续计算的总数并因此显着减少处理时间的过程。 从与假设的发射机对应的修剪的样本和参考频率样本中确定相关系数。 如果在该系列的检查中发现匹配，则确定码相位偏移; 如果不是，该过程与另一个假设的残余频率重复。 在这种检查之前，类似地获得的多个相关系数也可以不相干地组合。 本文公开的装置和方法对于组合的位置定位和通信系统特别有用，特别是那些不同步的位置，例如在GSM和UMTS蜂窝电话系统上使用的辅助GPS（“A-GPS”）。