Sonic-assisted localization of wireless devices
    1.
    发明授权
    Sonic-assisted localization of wireless devices 有权
    无线设备的声波辅助定位

    公开(公告)号:US09465107B2

    公开(公告)日:2016-10-11

    申请号:US13801304

    申请日:2013-03-13

    IPC分类号: G01S15/06 G01S3/80

    CPC分类号: G01S15/06 G01S3/80 G01S5/18

    摘要: Wireless location identification systems, methods, and devices include a wireless device configured to transmit at least one sonic signal operating on at least one acoustic frequency and to receive at least one echo signal indicative of the at least one sonic signal being reflected by objects in a current location, an audio module configured to measure the received at least one echo signal and process the at least one echo signal to extract attributes of the echo signal and generate at least one echo profile characteristic; and logic configured to compare the at least one profile characteristic with previously-stored sonic characteristics that are correlated with pre-identified locations. The current location is then identified as a pre-identified location correlated to the previously-stored sonic characteristics that match the at least one profile characteristic.

    摘要翻译: 无线位置识别系统,方法和设备包括:无线设备,被配置为发送至少一个在至少一个声频上操作的声音信号,并且接收指示所述至少一个声音信号的至少一个回波信号,该至少一个声音信号由 当前位置,被配置为测量所接收的至少一个回波信号并且处理所述至少一个回波信号以提取所述回波信号的属性并生成至少一个回波分布特征的音频模块; 以及被配置为将所述至少一个简档特征与与预先识别的位置相关联的先前存储的声音特性进行比较的逻辑。 然后将当前位置识别为与先前存储的与至少一个简档特征匹配的声音特性相关的预先识别的位置。

    Flat model software compensated crystal oscillator for GPS receiver
    2.
    发明授权
    Flat model software compensated crystal oscillator for GPS receiver 失效
    用于GPS接收机的平面型软件补偿晶体振荡器

    公开(公告)号:US07253767B1

    公开(公告)日:2007-08-07

    申请号:US11217693

    申请日:2005-09-01

    IPC分类号: G01S1/00 H03L1/00

    摘要: A GPS receiver comprises a crystal oscillator with a manufacturer's characteristic curve, a GPS radio, a TCO temperature sensor, and a GPS receiver software. The crystal oscillator serves as a local reference oscillator for the GPS radio. The GPS receiver software instructs the GPS radio to search radio spectrum for GPS satellite transmissions. Once the combination locks onto a minimum number of GPS satellites and produces a user position fix, the precise crystal oscillator frequency can be measured and associated with a temperature reading from the TCO to software-compensate the local oscillator in later cold-start frequency searches. A “flat” SCXO model is piecemeal upgraded with individual calibrations as they are collected over the life of the GPS receiver. During manufacturing of the GPS receiver such flat-SCXO model begins as a device characteristic curve supplied by the crystal manufacturer.

    摘要翻译: GPS接收机包括具有制造商特征曲线的晶体振荡器,GPS无线电,TCO温度传感器和GPS接收器软件。 晶体振荡器用作GPS无线电的本地参考振荡器。 GPS接收机软件指示GPS无线电台搜索无线电频谱以进行GPS卫星传输。 一旦组合锁定到最少数量的GPS卫星并产生用户定位,就可以测量精确的晶体振荡器频率并将其与从TCO的温度读数相关联,以在后来的冷启动频率搜索中对本地振荡器进行软件补偿。 在“GPS”接收机的使用寿命期间,“SCXO”型号可以通过单独的校准进行零碎升级。 在GPS接收机的制造过程中,这种平面SCXO模型作为晶体制造商提供的器件特性曲线开始。

    GEOFENCING TECHNIQUES
    3.
    发明申请
    GEOFENCING TECHNIQUES 有权
    地理技术

    公开(公告)号:US20150045064A1

    公开(公告)日:2015-02-12

    申请号:US13976237

    申请日:2012-12-28

    IPC分类号: H04W4/02

    摘要: In one embodiment a controller comprises logic configured to receive, in the controller, a geofencing definition and input from at least one location information device, update a location of the controller using one or more location parameters from one or more location information devices, and generate a notification signal when the location of the controller indicates that the controller has crossed a threshold. Other embodiments may be described.

    摘要翻译: 在一个实施例中,控制器包括被配置为在控制器中接收来自至少一个位置信息设备的地理围栏定义和输入的逻辑,其使用来自一个或多个位置信息设备的一个或多个位置参数更新控制器的位置,并且生成 当控制器的位置指示控制器已经越过阈值时的通知信号。 可以描述其他实施例。

    Shared reference station
    4.
    发明授权

    公开(公告)号:US06647339B2

    公开(公告)日:2003-11-11

    申请号:US10079252

    申请日:2002-02-19

    IPC分类号: G01C2128

    CPC分类号: G01S19/05

    摘要: A reference station system comprises a plurality of GPS reference stations that are distributed in different parts of the world to be able to simultaneously gather a complete set of satellite vehicle ephemeredes. Each reference station is associated with a network server connected to the Internet. Each network server posts ephemeredes, NAV-data, and other useful information for clients derived from its corresponding reference station. All such network servers inject their information in all the other servers in the system Each server validates and authenticates any injected data. Each client is also qualified as a subscriber before being able to access the complete ephemeredes database and other GPS system information.

    GNSS SERVICES ON LOW POWER HUB
    5.
    发明申请
    GNSS SERVICES ON LOW POWER HUB 有权
    全球导航卫星系统在低功率机组上的服务

    公开(公告)号:US20150089176A1

    公开(公告)日:2015-03-26

    申请号:US14037648

    申请日:2013-09-26

    IPC分类号: G06F5/10 G06F12/08

    摘要: In one embodiment an controller comprises logic, at least partially including hardware logic, configured to logic, at least partially including hardware logic, configured to receive location data from a location measurement apparatus, buffer the location data in a local memory, and release the location data from the local memory to a remote processor in response to one or more trigger conditions. Other embodiments may be described.

    摘要翻译: 在一个实施例中,控制器包括至少部分地包括硬件逻辑的逻辑,其被配置为至少部分地包括硬件逻辑的逻辑,其被配置为从位置测量装置接收位置数据,缓冲位置数据在本地存储器中,并释放位置 响应于一个或多个触发条件从本地存储器到远程处理器的数据。 可以描述其他实施例。