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”）。

公开(公告)号：US07702002B2

公开(公告)日：2010-04-20

申请号：US10936177

申请日：2004-09-07

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”）。

公开(公告)号：US20080158051A1

公开(公告)日：2008-07-03

申请号：US11836643

申请日：2007-08-09

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S1/00

CPC分类号： H04W64/006 ,  G01P3/50 ,  G01P3/64 ,  G01S11/02 ,  G01S11/06 ,  G01S19/254 ,  G01S19/26 ,  H04B17/318 ,  H04W52/08 ,  H04W52/221

摘要： Methods and apparatuses for determining a position of a mobile satellite positioning system (SPS) receiver which is coupled to a communication receiver or transceiver. In one exemplary method, a change in a communication signal received by the communication receiver is determined. A parameter, based on the change, is determined, and SPS signals from SPS satellites are processed according to the parameter. According to further details of this method, the change involves the fluctuation of the level of the communication signal and the parameter is a motion information which specifies a frequency range for searching for SPS signals in the process of acquiring the SPS signals from SPS satellites. In an alternative embodiment the change in the communication signal is a change in the transmitted signal in response to power control commands. Apparatuses, such as a mobile communication system which includes an SPS receiver and a communication receiver, are also described.

摘要翻译： 用于确定耦合到通信接收机或收发机的移动卫星定位系统（SPS）接收机的位置的方法和装置。 在一个示例性方法中，确定由通信接收机接收的通信信号的改变。 根据变化确定参数，根据参数对SPS卫星的SPS信号进行处理。 根据该方法的更多细节，该变化涉及通信信号的电平的波动，并且该参数是在从SPS卫星获取SPS信号的过程中指定用于搜索SPS信号的频率范围的运动信息。 在替代实施例中，通信信号的变化是响应于功率控制命令的发射信号的变化。 还描述了诸如包括SPS接收机和通信接收机的移动通信系统的装置。

公开(公告)号：US06937872B2

公开(公告)日：2005-08-30

申请号：US10189044

申请日：2002-07-02

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： H04B1/00 ,  H04B7/26 ,  H04W56/00 ,  H04W92/10 ,  H04W92/20 ,  H04B15/00

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.

公开(公告)号：US06411254B1

公开(公告)日：2002-06-25

申请号：US09835924

申请日：2001-04-10

申请人： Mark Moeglein ,  Leonid Sheynblat ,  Norman F. Krasner

发明人： Mark Moeglein ,  Leonid Sheynblat ,  Norman F. Krasner

IPC分类号： G01S502

CPC分类号： H03J7/047 ,  G01S5/0036 ,  G01S5/0045 ,  G01S5/0054 ,  G01S5/009 ,  G01S19/06 ,  G01S19/07 ,  G01S19/09 ,  G01S19/11 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/41 ,  G01S2205/008

摘要： Methods and apparatuses which use satellite position system (SPS) reference receivers. In one example of the invention, a plurality of SPS reference receivers, such as Global Positioning System (GPS) reference receivers, each having a known position, are dispersed over a geographical region. Each of the SPS reference receivers transmits into a communication network, a representation of at least a portion of a satellite navigation message, such as satellite ephemeris data, received from SPS satellites in view of the particular SPS reference receiver. A plurality of digital processing systems, such as a first and a second digital processing systems, are coupled to the communication network to receive the satellite ephemeris data which is transmitted through the communication network.

公开(公告)号：US06298098B1

公开(公告)日：2001-10-02

申请号：US09022467

申请日：1998-02-12

申请人： Norman F. Krasner ,  Allen Ponsford Edwards ,  William G. Xenakis ,  Bruce J. Currivan

发明人： Norman F. Krasner ,  Allen Ponsford Edwards ,  William G. Xenakis ,  Bruce J. Currivan

IPC分类号： H04L2510

CPC分类号： H04L7/046

摘要： A hybrid fiber/coax digital data transmission system in which data from a plurality of subscribers are transmitted upstream to a headend demodulator in a series of data bursts. The headend demodulator acquires and synchronizes a data burst by detecting a BPSK preamble having a repetitive one and zero pattern (10101010101000). The pattern is detected by integrating clock energy in an envelope of a preamble length transmission and using the last three symbols (0,0,0) as a frame marker after differential decoding. Noise in the system is periodically measured by detecting an empty burst placed periodically in the data stream. A first-in, first-out (FIFO) memory allows closer spacing for the data bursts by permitting asynchronous received and output clocks.

摘要翻译： 一种混合光纤/同轴电缆数字数据传输系统，其中来自多个用户的数据在一系列数据突发中向上游发送到头端解调器。 前端解调器通过检测具有重复的一个和零个模式的BPSK前导码（10101010101000）来获取和同步一个数据突发。 通过在前导码长度传输的包络中集成时钟能量并且在差分解码之后使用最后三个符号（0,0,0）作为帧标记来检测模式。 通过检测在数据流中周期性地放置的空脉冲来周期性地测量系统中的噪声。 先进先出（FIFO）存储器通过允许异步接收和输出时钟允许数据突发的更紧密的间隔。

公开(公告)号：US06272430B1

公开(公告)日：2001-08-07

申请号：US09136011

申请日：1998-08-17

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S514

CPC分类号： G01S19/235 ,  G01C21/206 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0045 ,  G01S5/0054 ,  G01S5/009 ,  G01S19/06 ,  G01S19/07 ,  G01S19/09 ,  G01S19/11 ,  G01S19/25 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/29 ,  G01S19/30 ,  G01S19/34 ,  G01S19/37 ,  G01S19/41 ,  G01S19/42 ,  G01S2205/008 ,  G06F2221/2111 ,  H01Q1/273 ,  H01Q21/28 ,  H03D7/163 ,  H03J7/06 ,  H03J2200/11 ,  H04B1/3805

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. Alterative arrangements for the two signal paths include separate downconverting 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。 第二电路通过数字化并存储接收到的序列的预定记录长度然后对所存储的数据执行快速卷积运算来确定伪距来处理伪随机序列。 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; 其中第一个提供常规的相关处理来计算伪距离。 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。 两个信号路径的改变方案包括单独的下变频或共享数字化仪。 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于接收条件的GPS信号处理。

公开(公告)号：US06259399B1

公开(公告)日：2001-07-10

申请号：US09132573

申请日：1998-08-11

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： G01S502

CPC分类号： H04B1/0007 ,  A61B5/1112 ,  A61B5/6805 ,  A61B5/7232 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0045 ,  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

摘要： A GPS receiver having multiple GPS antennas. Also described is a method of tracking employing the GPS receiver and a communication transmitter. Also described is a garment having a GPS receiver and a GPS antenna and a communication antenna and a communication transmitter.

摘要翻译： 具有多个GPS天线的GPS接收机。 还描述了使用GPS接收机和通信发射机的跟踪方法。 还描述了具有GPS接收机和GPS天线以及通信天线和通信发射机的服装。

公开(公告)号：US06239742B1

公开(公告)日：2001-05-29

申请号：US09550450

申请日：2000-04-17

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： H04B7185

CPC分类号： G01S5/0009 ,  G01S19/09 ,  G01S19/235 ,  G01S19/24 ,  G01S19/25 ,  G01S19/256 ,  G01S19/258 ,  G04R20/06

摘要： A method and apparatus for measuring time related to satellite data messages which are used with satellite positioning systems (SPS). In one method, a first record of at least a portion of a satellite data message is received at an entity, which is typically a basestation. The first record is compared with a second record of the satellite data message, where the first record and the second record overlap at least partially in time. Then a time is determined from this comparison, and this time indicates when the first record (or the source from which the first record was obtained) was received at a remote entity which is typically a mobile SPS receiver. Various other methods of the invention are described and various apparatuses of the invention are also described. The methods and apparatuses measure time of day using SPS signals without reading the satellite data messages which are transmitted as data within these signals. The methods and apparatuses are suitable for situations in which the received signal level is too weak to allow reading of the satellite data messages.

摘要翻译： 用于测量与卫星定位系统（SPS）一起使用的卫星数据消息相关时间的方法和装置。 在一种方法中，在通常是基站的实体处接收卫星数据消息的至少一部分的第一记录。 将第一记录与卫星数据消息的第二记录进行比较，其中第一记录和第二记录至少部分地在时间上重叠。 然后从该比较中确定一个时间，并且此时表示何时在通常为移动SPS接收机的远程实体处接收到第一记录（或获得第一记录的源）的时间。 还描述了本发明的各种其它方法，并且还描述了本发明的各种装置。 方法和装置使用SPS信号测量时间，而不读取在这些信号中作为数据传输的卫星数据消息。 所述方法和装置适用于接收信号电平太弱而不能读取卫星数据消息的情况。

公开(公告)号：US06236354B1

公开(公告)日：2001-05-22

申请号：US09109112

申请日：1998-07-02

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： H04B7185

CPC分类号： G01S19/21 ,  G01S5/0036 ,  G01S5/0054 ,  G01S19/246 ,  H04B7/18513

摘要： A method and apparatus is disclosed for reducing cross-interference between received satellite signals in a satellite positioning system receiver. A satellite positioning receiver receives satellite signals from a plurality of satellites. Spurious signals when processing a weak received satellite signal due to interference by a stronger received signal are reduced by estimating certain characteristics of the stronger signal, creating an interference waveform based on these estimated characteristics, and subtracting this interference waveform from a set of correlation outputs for the weaker signal to remove the interference effects of the stronger signal. Alternatively, a subset of these correlation outputs are ignored where the interference waveform produces strong spurious signals.

摘要翻译： 公开了一种用于减少卫星定位系统接收机中接收到的卫星信号之间的交叉干扰的方法和装置。 卫星定位接收机从多个卫星接收卫星信号。 通过估计较强信号的某些特性，产生基于这些估计特性的干扰波形，以及从一组相关输出中减去该干扰波形来减少由于较强接收信号的干扰而处理弱接收卫星信号时的杂散信号 较弱的信号消除了较强信号的干扰效应。 或者，忽略这些相关输出的子集，其中干扰波形产生强杂散信号。