公开(公告)号：US09020522B2

公开(公告)日：2015-04-28

申请号：US12732874

申请日：2010-03-26

申请人： Dave Murray ,  Charles Abraham ,  Mark Buer ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren

发明人： Dave Murray ,  Charles Abraham ,  Mark Buer ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren

IPC分类号： H04W24/00 ,  H04W4/02

CPC分类号： H04W4/02

摘要： A mobile device may be operable to collect location data for a RF node and cache the collected location data in the mobile device. Resources that may be utilized for improving the uploading of the cached location data to a location server may be determined by the mobile device. The cached location data may be communicated, to the location server for updating a location database, by the mobile device utilizing the determined resources. The mobile device may determine and utilize an opportunistic transport based on a data usage and/or an access. The mobile device may store a subset of the location database locally for comparing with the cached location data for redundancy. The compared location data may be transmitted by the mobile device to the location server for updating the location database if the compared location data are not redundant data.

摘要翻译： 移动设备可以用于收集RF节点的位置数据，并且将收集的位置数据缓存在移动设备中。 可用于改进缓存的位置数据上传到位置服务器的资源可以由移动设备确定。 缓存的位置数据可以由移动设备利用确定的资源传送到位置服务器以更新位置数据库。 移动设备可以基于数据使用和/或访问来确定和利用机会性传输。 移动设备可以本地存储位置数据库的子集，以便与用于冗余的高速缓存的位置数据进行比较。 如果所比较的位置数据不是冗余数据，则比较的位置数据可以由移动设备发送到位置服务器以更新位置数据库。

公开(公告)号：US08958815B2

公开(公告)日：2015-02-17

申请号：US12732922

申请日：2010-03-26

申请人： Mark Buer ,  Charles Abraham ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren ,  David Murray

发明人： Mark Buer ,  Charles Abraham ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren ,  David Murray

IPC分类号： H04W64/00 ,  G01S5/12 ,  G01S11/08

CPC分类号： H04W64/00 ,  G01S5/12 ,  G01S11/06 ,  G01S11/08 ,  H04W4/02 ,  H04W12/06 ,  H04W48/04 ,  H04W52/283

摘要： A transmitting communication device may iteratively adjust its transmit power, and may estimate, based on iterative transmit power adjustment, relative location of a receiving communication device. The transmit power may be initialized to a maximum value, and the transmit power may be iteratively reduced until connectivity with the receiving communication device is lost. The loss of connectivity may be determined based on reception of responses to ping messages transmitted by the transmitting communication device. The transmitting communication device may authenticate the receiving communication device and/or a user of the receiving communication device. The authentication may comprises utilizing transmit power adjustment and/or relative location estimation therefrom to ensure that a separation between the devices does not exceed a maximum value. The transmitting communication device may generate location info associated with the receiving communication device based on the relative location estimation, and may communicate the location info to a location server.

摘要翻译： 发射通信设备可以迭代地调整其发射功率，并且可以基于迭代发射功率调整来估计接收通信设备的相对位置。 发射功率可以被初始化为最大值，并且可以迭代地减少发射功率，直到与接收通信设备的连接丢失。 可以基于对由发送通信设备发送的ping消息的响应的接收来确定连接性的损失。 发送通信设备可以认证接收通信设备和/或接收通信设备的用户。 认证可以包括利用传输功率调整和/或相对位置估计来确保设备之间的间隔不超过最大值。 发送通信设备可以基于相对位置估计生成与接收通信设备相关联的位置信息，并且可以将位置信息传送到位置服务器。

公开(公告)号：US08912954B2

公开(公告)日：2014-12-16

申请号：US13620458

申请日：2012-09-14

申请人： John Walley ,  Charles Abraham ,  Evan McCarthy ,  Kambiz Shoarinejad

发明人： John Walley ,  Charles Abraham ,  Evan McCarthy ,  Kambiz Shoarinejad

IPC分类号： G01S19/45 ,  G01S19/35 ,  G01S19/25 ,  G01S19/09

CPC分类号： G01S19/35 ,  G01S19/09 ,  G01S19/25

摘要： A multi-standard single chip integrated within a multi-standard mobile device concurrently receives multi-standard radio frequency signals by corresponding two or more integrated radios. The multi-standard single chip generates full GNSS measurement comprising pseudo-range information using the received radio frequency signals. The multi-standard single chip comprises a GNSS radio and multiple non-GNSS radios such as Bluetooth. The full GNSS measurement is generated using GNSS radio frequency signals received by the integrated GNSS radio and communicated over, for example, Bluetooth radio. GNSS satellite reference information embedded in radio frequency signals received by the integrated non-GNSS radios is extracted to assist the full GNSS measurement. A full GNSS navigation solution for the multi-standard mobile device is generated internally to and/or externally to the multi-standard single chip depending on the location of a navigation engine. The generation of the full GNSS measurement is independent of a host processor within the multi-standard mobile device.

摘要翻译： 集成在多标准移动设备内的多标准单芯片同时通过相应的两个或多个集成无线电接收多标准射频信号。 多标准单芯片使用所接收的射频信号产生包括伪距信息的全GNSS测量。 多标准单芯片包括GNSS无线电和诸如蓝牙的多个非GNSS无线电。 使用由集成的GNSS无线电接收的GNSS射频信号并通过例如蓝牙无线电来传送完整GNSS测量。 嵌入在由集成的非GNSS无线电接收的射频信号中的GNSS卫星参考信息被提取以协助完整的GNSS测量。 根据导航引擎的位置，多标准移动设备的完整GNSS导航解决方案在多标准单芯片内部和/或外部生成。 完整GNSS测量的生成与多标准移动设备内的主机处理器无关。

公开(公告)号：US08832718B2

公开(公告)日：2014-09-09

申请号：US11206315

申请日：2005-08-17

申请人： Charles Abraham ,  Sergei Podshivalov

发明人： Charles Abraham ,  Sergei Podshivalov

IPC分类号： G06F9/44 ,  G06F13/10 ,  G01S19/00

CPC分类号： G06F13/102 ,  Y02D10/14

摘要： Method and apparatus for providing an interface between application software and an SPS sub-system embedded in a location-enabled device is described. In one example, the location-enabled device includes a satellite positioning system (SPS) receiver, a hardware communication port coupled to the SPS receiver, a central processing unit (CPU), and a memory. The memory stores program code for execution by the CPU. The program code includes application software, SPS control software, and a driver. The application software is configured to communicate using the hardware communication port. The SPS control software is configured to control the SPS receiver. The driver is configured to provide a virtual communication port between the application software and the SPS control software.

摘要翻译： 描述了在应用软件和嵌入在位置使能设备中的SPS子系统之间提供接口的方法和装置。 在一个示例中，启用位置的设备包括卫星定位系统（SPS）接收机，耦合到SPS接收机的硬件通信端口，中央处理单元（CPU）和存储器。 存储器存储用于CPU执行的程序代码。 程序代码包括应用软件，SPS控制软件和驱动程序。 应用软件被配置为使用硬件通信端口进行通信。 SPS控制软件配置为控制SPS接收机。 驱动器被配置为在应用软件和SPS控制软件之间提供虚拟通信端口。

公开(公告)号：US08831507B2

公开(公告)日：2014-09-09

申请号：US12732986

申请日：2010-03-26

申请人： Dave Murray ,  Charles Abraham ,  Mark Buer ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren

发明人： Dave Murray ,  Charles Abraham ,  Mark Buer ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren

IPC分类号： H04B5/00

CPC分类号： G01S5/02

摘要： Whenever a mobile device in a building is within proximity of a RF communication device, the mobile device may be operable to receive location information transmitted, for example by broadcasting it, from a RF communication device. The transmitted location information comprises altitude information of the RF communication device. At least an altitude of the mobile device may be determined based on the received altitude information of the RF communication device. The RF communication device may be located in an elevator car and/or on a particular floor in the building. Whenever the RF communication device is located in the elevator car, the altitude information of the RF communication device may be received by the RF communication device from an elevator controller. In instances when the RF communication device also transmits its latitude/longitude (LAT/LON), the mobile device may be operable to determine a 3-dimentional (3D) location of the mobile device.

摘要翻译： 每当建筑物中的移动设备在RF通信设备附近时，移动设备可以可操作地从RF通信设备接收例如通过广播来发送的位置信息。 所发送的位置信息包括RF通信设备的高度信息。 可以基于RF通信设备的接收的高度信息来确定移动设备的至少高度。 RF通信设备可以位于建筑物中的电梯轿厢和/或特定楼层中。 每当RF通信设备位于电梯轿厢中时，RF通信设备的高度信息可以由RF通信设备从电梯控制器接收。 在RF通信设备也发送其纬度/经度（LAT / LON）的情况下，移动设备可以用于确定移动设备的3维（3D）位置。

公开(公告)号：US08738290B2

公开(公告)日：2014-05-27

申请号：US12760226

申请日：2010-04-14

申请人： Charles Abraham ,  Steven Malkos ,  Sergei Podshivalov

发明人： Charles Abraham ,  Steven Malkos ,  Sergei Podshivalov

IPC分类号： G06F19/00

CPC分类号： G01S19/05 ,  G01S19/08

摘要： Method and apparatus for managing a network element in a satellite navigation data distribution system is described. In one example, a network element includes a processor for processing satellite navigation data. For example, a network element may be a reference station, a hub, or a server in the satellite navigation data distribution system. The network element includes a memory for maintaining status variables associated with the processing of the satellite navigation data. The status variables may relate to the integrity of the satellite navigation data. The network element further includes a management agent for monitoring states of the status variables and communicating with a network management system to exchange information related to the states of the status variables. In one example, the management agent is configured to communicate using a simple network management protocol (SNMP).

摘要翻译： 描述了用于管理卫星导航数据分配系统中的网络元件的方法和装置。 在一个示例中，网络元件包括用于处理卫星导航数据的处理器。 例如，网络元件可以是卫星导航数据分配系统中的参考站，集线器或服务器。 网络元件包括用于维护与卫星导航数据的处理相关联的状态变量的存储器。 状态变量可能与卫星导航数据的完整性有关。 网络元件还包括用于监视状态变量的状态并与网络管理系统通信以交换与状态变量的状态有关的信息的管理代理。 在一个示例中，管理代理被配置为使用简单网络管理协议（SNMP）进行通信。

公开(公告)号：US08681043B2

公开(公告)日：2014-03-25

申请号：US13367333

申请日：2012-02-06

申请人： Charles Abraham ,  John Walley

发明人： Charles Abraham ,  John Walley

IPC分类号： G01S19/23

CPC分类号： G01S19/235 ,  G01S19/36

摘要： A global navigation satellite system (GNSS) enabled mobile device comprising a crystal oscillator and an automatic frequency correction (AFC) circuit may be operable to share the crystal oscillator between processing of cellular radio signals and processing of GNSS data messages. The GNSS enabled mobile device may be operable to enforce an AFC correction when the crystal oscillator drifts beyond a specific frequency error. The AFC correction may be allowed during time intervals corresponding to GNSS words at which decoding of these words is not required. The GNSS enabled mobile device may be operable to disable the AFC correction during time intervals associated with decoding of words while the crystal oscillator may drift within the specific frequency error range. After the decoding of one or more of words is completed, the AFC correction may be allowed during the time intervals corresponding to these words.

摘要翻译： 包括晶体振荡器和自动频率校正（AFC）电路的全球导航卫星系统（GNSS）移动设备可以用于在蜂窝无线电信号的处理和GNSS数据消息的处理之间共享晶体振荡器。 当使能GNSS功能的移动设备可以可操作以在晶体振荡器漂移超过特定频率误差时执行AFC校正。 可以在对应于不需要对这些单词进行解码的GNSS字的时间间隔期间允许AFC校正。 支持GNSS的移动设备可以可操作以在晶体振荡器可能在特定频率误差范围内漂移的同时，在与字解码相关的时间间隔期间禁用AFC校正。 在一个或多个字的解码完成之后，可以在对应于这些字的时间间隔期间允许AFC校正。

公开(公告)号：US08611397B2

公开(公告)日：2013-12-17

申请号：US12643494

申请日：2009-12-21

申请人： Charles Norman ,  Andreas Warloe ,  Charles Abraham ,  Jared Welz

发明人： Charles Norman ,  Andreas Warloe ,  Charles Abraham ,  Jared Welz

IPC分类号： H04B1/00

CPC分类号： H04B1/707

摘要： A direct-sequence spread spectrum (DSSS) receiver may be operable to process signal samples in frequency domain utilizing a prime factor fast Fourier transform (FFT) circuit and a pseudorandom noise (PRN) code. The DSSS receiver may be operable to transform the signal samples into FFT signal samples using the prime factor FFT circuit, transform the PRN code into a FFT PRN code using the prime factor FFT circuit and multiply the FFT signal samples with the FFT PRN code using the prime factor FFT circuit. The DSSS receiver may be operable to inversely transform the multiplied FFT signal samples into correlated signal samples using a prime factor inverse FFT (IFFT) implemented by the prime factor FFT circuit. The prime factor FFT circuit may comprise a prime length FFT core, a FFT memory, a register bank, a switch, a multiplier and a FFT controller.

摘要翻译： 直接序列扩频（DSSS）接收机可以用于利用素数因子快速傅立叶变换（FFT）电路和伪随机噪声（PRN）码来处理频域中的信号样本。 DSSS接收机可以用于使用素数FFT电路将信号样本变换成FFT信号样本，使用素数FFT电路将PRN码变换成FFT PRN码，并使用FFT PRN码将FFT信号样本与FFT PRN码相乘 素因子FFT电路。 DSSS接收机可以使用由素数因子FFT电路实现的素因子逆FFT（IFFT）将乘法的FFT信号样本反相变换为相关的信号样本。 素因子FFT电路可以包括素数FFT核心，FFT存储器，寄存器组，开关，乘法器和FFT控制器。

公开(公告)号：US08571153B2

公开(公告)日：2013-10-29

申请号：US12759816

申请日：2010-04-14

申请人： Charles Abraham

发明人： Charles Abraham

IPC分类号： H04B1/10

CPC分类号： H04B7/1851 ,  G01S19/21 ,  H04B1/3805 ,  H04B2201/70709 ,  H04B2201/709709

摘要： A method and apparatus for mitigating interference in a satellite signal receiver is described. The satellite signal receiver receives satellite signals from a plurality of satellites. In one example, a control signal is transmitted to the satellite signal receiver upon occurrence of data transmission from a wireless transceiver operating in proximity to the satellite signal receiver. Signal integration within the satellite signal receiver is gated in response to the control signal. In another example, one or more values of satellite signal samples are selected from a plurality of possible values. Signal integration within the satellite signal receiver is gated in response to a percentage of satellite signal samples taken over a predefined period exceeding a predefined threshold. In yet another example, a gain setting of an automatic gain control circuit within the satellite signal receiver is adjusted in response to detection of interference.

摘要翻译： 描述了用于减轻卫星信号接收机中的干扰的方法和装置。 卫星信号接收机从多个卫星接收卫星信号。 在一个示例中，当从邻近卫星信号接收机操作的无线收发器发生数据传输时，控制信号被发送到卫星信号接收机。 卫星信号接收机中的信号积分响应于控制信号而选通。 在另一示例中，从多个可能值中选择卫星信号样本的一个或多个值。 卫星信号接收机内的信号积分响应于在超过预定阈值的预定义周期内拍摄的卫星信号样本的百分比来选通。 在另一示例中，响应于干扰的检测来调整卫星信号接收机内的自动增益控制电路的增益设置。

公开(公告)号：US08508407B2

公开(公告)日：2013-08-13

申请号：US13176013

申请日：2011-07-05

申请人： Charles Abraham

发明人： Charles Abraham

IPC分类号： G01S19/34

CPC分类号： G01S19/29 ,  G01S5/0036 ,  G01S19/05 ,  G01S19/34

摘要： Methods and systems for measuring wireless signals are described. The method includes generating a velocity estimate that includes a speed and a direction of a wireless receiver. A change in the velocity estimate is detected and how frequently the wireless signal is measured is adjusted according to the change detected in the velocity estimate. Systems may include wireless receivers that include an accelerometer that is operable to generate a velocity estimate that includes speed and direction of the wireless receiver. The wireless receivers may also include a processor operable to adjust a measurement period of the wireless signal in the wireless receiver according to a rate of change in the velocity estimate.

摘要翻译： 描述了用于测量无线信号的方法和系统。 该方法包括产生包括无线接收机的速度和方向的速度估计。 检测速度估计的变化，并根据速度估计中检测到的变化来调整无线信号的测量频率。 系统可以包括无线接收器，其包括加速度计，其可操作以产生包括无线接收器的速度和方向的速度估计。 无线接收机还可以包括可操作以根据速度估计的变化率来调整无线接收机中的无线信号的测量周期的处理器。