Method and apparatus for satellite positioning system based time
measurement
    62.
    发明授权
    Method and apparatus for satellite positioning system based time measurement 失效
    基于卫星定位系统的时间测量方法和装置

    公开(公告)号:US6052081A

    公开(公告)日:2000-04-18

    申请号:US74521

    申请日:1998-05-07

    申请人: Norman F. Krasner

    发明人: Norman F. Krasner

    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。

    Method and apparatus for satellite positioning system based time
measurement

    公开(公告)号:US5812087A

    公开(公告)日:1998-09-22

    申请号:US794649

    申请日:1997-02-03

    申请人: Norman F. Krasner

    发明人: Norman F. Krasner

    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.

    FFT Parallel processor having mutually connected, multiple identical
cards
    65.
    发明授权
    FFT Parallel processor having mutually connected, multiple identical cards 失效
    FFT并行处理器具有相互连接,多个相同的卡

    公开(公告)号:US4241411A

    公开(公告)日:1980-12-23

    申请号:US961116

    申请日:1978-11-16

    IPC分类号: G06F17/14 G06F15/332

    CPC分类号: G06F17/142

    摘要: A modular fast Fourier transform processor which employs identical processor cards, each of which has a butterfly, memory units which send and receive data to and from the butterfly and a pair of input ports and a pair of output ports. The cards are interconnected through these ports to execute a fast Fourier transform decomposition in accord with Singleton's algorithm. The speed and capacity of the processor may be increased in a gradual manner by employing more of the processor cards.

    摘要翻译: 一种模块化快速傅里叶变换处理器,其采用相同的处理器卡,每个处理器卡具有蝶形存储单元,其向蝶形发送和接收数据以及一对输入端口和一对输出端口。 这些卡通过这些端口互连,以符合Singleton算法执行快速傅里叶变换分解。 可以通过使用更多的处理器卡来逐渐增加处理器的速度和容量。

    Rapid acquisition methods and apparatus for GPS signals
    66.
    发明授权
    Rapid acquisition methods and apparatus for GPS signals 有权
    快速采集GPS信号的方法和装置

    公开(公告)号:US08111736B2

    公开(公告)日:2012-02-07

    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

    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”)。

    Methods and apparatuses for controlling distribution of location information
    67.
    发明授权
    Methods and apparatuses for controlling distribution of location information 有权
    控制位置信息分配的方法和装置

    公开(公告)号:US07570958B2

    公开(公告)日:2009-08-04

    申请号:US10961986

    申请日:2004-10-07

    IPC分类号: H04M3/42

    摘要: A mobile system, such as a wireless phone, communicates its location or other position information, such as pseudoranges, to a server system and optionally sends permission criteria defining which other mobile systems are allowed to access its location. In the case where the mobile system does not provide its location, the server determines the location using the other position information provided (e.g. pseudoranges for satellites in view of the mobile system). The server system sends the location to other mobile systems in accordance with the permission criteria, with or without a request from another mobile system for the location. If no permission criteria has been sent by the mobile system, the server system queries the mobile system for the permission criteria in response to a request for the location. If no permission criteria is sent by the mobile system, or if the permission criteria sent denies the request, the server system can, alternately, not reply to the request or reply with an error message. The permission criteria can include additional access limitations such as dates or times during which access is permitted or denied, and geographic areas in which access is permitted or denied.

    摘要翻译: 诸如无线电话的移动系统将其位置或其他位置信息(例如伪距)传送到服务器系统,并且可选地发送允许标准,定义哪些其他移动系统被允许访问其位置。 在移动系统不提供其位置的情况下,服务器使用提供的其他位置信息(例如,考虑到移动系统的卫星的伪距)来确定位置。 服务器系统根据许可标准将位置发送到其他移动系统,具有或不具有来自另一个移动系统的位置的请求。 如果移动系统没有发送许可标准,则服务器系统响应于对该位置的请求来向移动系统查询许可标准。 如果移动系统没有发送许可标准,或者如果发送的许可标准拒绝了该请求,则服务器系统可以不用回复请求或回复错误消息。 许可标准可以包括其他访问限制,例如允许或拒绝访问的日期或时间,以及允许或拒绝访问的地理区域。

    Methods and apparatuses for measuring frequencies of basestations in cellular networks using mobile GPS receivers
    68.
    发明授权
    Methods and apparatuses for measuring frequencies of basestations in cellular networks using mobile GPS receivers 有权
    使用移动GPS接收机测量蜂窝网络基站频率的方法和装置

    公开(公告)号:US07024215B2

    公开(公告)日:2006-04-04

    申请号:US11187175

    申请日:2005-07-21

    申请人: Norman F. Krasner

    发明人: Norman F. Krasner

    IPC分类号: H04B15/00

    摘要: Methods and systems for frequency synchronizing base stations in a cellular communication system. In one aspect of the invention, a method to measure a frequency related to a base station of a cellular communication system includes receiving a satellite positioning system signal; determining a frequency of a reference signal from a local oscillator of a mobile station from the satellite position system signal; receiving a first cellular signal from a base station containing first and second timing markers; determining first and second time tags for the markers using the reference signal; and combining the frequency of the reference signal and the first and second time tags to compute a first frequency related to the base station.

    摘要翻译: 在蜂窝通信系统中频率同步基站的方法和系统。 在本发明的一个方面,一种测量与蜂窝通信系统的基站有关的频率的方法包括:接收卫星定位系统信号; 从卫星位置系统信号确定来自移动台的本地振荡器的参考信号的频率; 从包含第一和第二定时标记的基站接收第一蜂窝信号; 使用参考信号确定所述标记的第一和第二时间标签; 以及组合所述参考信号的频率和所述第一和第二时间标签,以计算与所述基站相关的第一频率。

    Client-server based remote locator device
    70.
    发明授权
    Client-server based remote locator device 有权
    基于客户端服务器的远程定位器设备

    公开(公告)号:US06661372B1

    公开(公告)日:2003-12-09

    申请号:US09684346

    申请日:2000-10-06

    IPC分类号: H04B7185

    摘要: A user accesses a server using a client. The client provides an identification code which serves to uniquely identify a remote sensor. The remote sensor is capable of providing information related to its position. The server interrogates the remote sensor and, in response, the remote sensor transmits positioning data to the server where it is analyzed to derive the location of the remote sensor. The location so determined is transmitted from the server to the client and is displayed at the client so that the user can identify the location of the remote sensor. The client and the server may be connected to a computer network and the client may use a web browser to interrogate the server. The remote sensor may be a SNAPSHOT GPS receiver or other GPS receiver or positioning device. The user display may be a simple position report, e.g., latitude and longitude, or a graphical report which provides an indication of the remote sensor's location superimposed on a map or other reference.

    摘要翻译: 用户使用客户端访问服务器。 客户端提供用于唯一识别远程传感器的识别码。 远程传感器能够提供与其位置相关的信息。 服务器询问远程传感器,作为响应,远程传感器将定位数据发送到服务器进行分析,以得出远程传感器的位置。 如此确定的位置从服务器发送到客户端,并在客户端显示,以便用户可以识别远程传感器的位置。 客户机和服务器可以连接到计算机网络,并且客户端可以使用网络浏览器来询问服务器。 遥感器可以是SNAPSHOT GPS接收器或其他GPS接收器或定位装置。 用户显示可以是简单的位置报告,例如纬度和经度,或图形报告,其提供叠加在地图或其他参考上的远程传感器的位置的指示。