公开(公告)号：US07859456B2

公开(公告)日：2010-12-28

申请号：US11548204

申请日：2006-10-10

申请人： Chi-Shin Wang ,  Zongde Qiu ,  Zhike Jia

发明人： Chi-Shin Wang ,  Zongde Qiu ,  Zhike Jia

IPC分类号： G01S19/24 ,  G01S19/25 ,  G01S19/27

CPC分类号： G01S19/27 ,  G01S19/246 ,  G01S19/254

摘要： The present invention provides systems and methods for enabling a navigation signal receiver to perform both data assisted and non-data assisted integration to provide better integration during signal acquisition, reacquisition and tracking. In data assisted integration mode, a receiver uses known or predicted data bits to remove the modulated data bits of a received signal prior to integration. In non data assisted integration mode, when the data bits are not known or predictable, the receiver uses an optimal estimation or maximum likelihood algorithm to determine the polarities of the modulated data bits of the received signal. This may be done by determining which of various possible bit pattern yields the maximum integrated power. When the modulated data bits are not known or predictable over a limited range, the receiver carries out data assisted integration over the known or predictable data bits and additional non data assisted integration.

摘要翻译： 本发明提供了使导航信号接收机能够执行数据辅助和非数据辅助集成的系统和方法，以在信号采集，重新采集和跟踪期间提供更好的集成。 在数据辅助积分模式中，接收机使用已知或预测的数据比特来在积分之前去除接收信号的调制数据比特。 在非数据辅助积分模式中，当数据比特未知或可预测时，接收机使用最优估计或最大似然算法来确定接收信号的调制数据比特的极性。 这可以通过确定各种可能的位模式中的哪一个产生最大集成功率来完成。 当调制数据位在有限范围内不知道或可预测时，接收机通过已知或可预测的数据位和附加的非数据辅助积分来执行数据辅助积分。

公开(公告)号：US20080084336A1

公开(公告)日：2008-04-10

申请号：US11548204

申请日：2006-10-10

申请人： Chi-Shin Wang ,  Zongde Qiu ,  Zhike Jia

发明人： Chi-Shin Wang ,  Zongde Qiu ,  Zhike Jia

IPC分类号： H03M7/38

CPC分类号： G01S19/27 ,  G01S19/246 ,  G01S19/254

摘要： The present invention provides systems and methods for enabling a navigation signal receiver to perform both data assisted and non-data assisted integration to provide better integration during signal acquisition, reacquisition and tracking. In data assisted integration mode, a receiver uses known or predicted data bits to remove the modulated data bits of a received signal prior to integration. In non data assisted integration mode, when the data bits are not known or predictable, the receiver uses an optimal estimation or maximum likelihood algorithm to determine the polarities of the modulated data bits of the received signal. This may be done by determining which of various possible bit pattern yields the maximum integrated power. When the modulated data bits are not known or predictable over a limited range, the receiver carries out data assisted integration over the known or predictable data bits and additional non data assisted integration.

摘要翻译： 本发明提供了使导航信号接收机能够执行数据辅助和非数据辅助集成的系统和方法，以在信号采集，重新采集和跟踪期间提供更好的集成。 在数据辅助积分模式中，接收机使用已知或预测的数据比特来在积分之前去除接收信号的调制数据比特。 在非数据辅助积分模式中，当数据比特未知或可预测时，接收机使用最优估计或最大似然算法来确定接收信号的调制数据比特的极性。 这可以通过确定各种可能的位模式中的哪一个产生最大集成功率来完成。 当调制数据位在有限范围内不知道或可预测时，接收机通过已知或可预测的数据位和附加的非数据辅助积分来执行数据辅助积分。

公开(公告)号：US20080117103A1

公开(公告)日：2008-05-22

申请号：US11561749

申请日：2006-11-20

申请人： Chi-Shin Wang ,  David Wang ,  Zongde Qiu

发明人： Chi-Shin Wang ,  David Wang ,  Zongde Qiu

IPC分类号： G01S5/14 ,  G01S1/00

CPC分类号： G01S19/34 ,  G01S19/258

摘要： The present invention provides methods and systems for keeping the ephemeris in a navigational receiver current to achieve fast TTFF without the need for connecting to an aiding network or remote server. In an embodiment, the receiver keeps the ephemeris current by downloading the ephemeris in the background. In the preferred embodiment, the receiver uses a background sleep/wake up process to download current ephemeris with minimal power drain. In this embodiment, the receiver alternates between a sleep mode and a wake up mode. During the wake up mode, the receiver attempts to download current ephemeris. The receiver then goes back to the sleep mode until the next wake up to conserve power. The receiver may wake up from the sleep mode to download the ephemeris when the stored ephemeris is no longer current or the ephemeris broadcasted from a satellite has been updated or based on receiver usage patterns.

摘要翻译： 本发明提供了用于将星历保持在导航接收机当中以在不需要连接到辅助网络或远程服务器的情况下实现快速TTFF的方法和系统。 在一个实施例中，接收器通过在背景中下载星历来保持星历当前的状态。 在优选实施例中，接收机使用背景睡眠/唤醒过程以最小的功率耗散来下载当前星历。 在该实施例中，接收器在睡眠模式和唤醒模式之间交替显示。 在唤醒模式下，接收端尝试下载当前星历。 接收器然后回到睡眠模式，直到下一次唤醒以节省电量。 当存储的星历不再是当前的或者从卫星广播的星历表已被更新或基于接收机使用模式时，接收机可以从休眠模式唤醒以下载星历。

公开(公告)号：US07570208B2

公开(公告)日：2009-08-04

申请号：US11324144

申请日：2005-12-29

申请人： Chi-Shin Wang ,  Zongde Qiu ,  Shridhara A. Kudrethaya ,  Jun Mo

发明人： Chi-Shin Wang ,  Zongde Qiu ,  Shridhara A. Kudrethaya ,  Jun Mo

IPC分类号： G01S5/14 ,  H04B1/16

CPC分类号： G01S19/24 ,  G01S19/246 ,  G01S19/27 ,  G01S19/29 ,  G01S19/34

摘要： The present invention provides GPS receivers capable of tracking very weak GPS signals particularly in an indoor environment without assistance from an external server or a network. In a preferred embodiment, a GPS receiver initially acquires and locks onto GPS satellite signals to compute receiver position outdoors. The GPS receiver then tracks at least one satellite signal indoors to maintain acquisition parameters for quick acquisition of GPS signals. To save power, the receiver automatically goes to the sleep state and periodically wakes up, i.e., powers up, to maintain the at least one satellite signal tracking. During the wakeup state, the receiver collects ephemeris data from the at least one satellite signal when the ephemeris data needs to be updated for quick acquisition of GPS signals.

摘要翻译： 本发明提供了能够跟踪非常弱的GPS信号的GPS接收机，特别是在室内环境中，无需外部服务器或网络的协助。 在一个优选实施例中，GPS接收机最初获取并锁定到GPS卫星信号上以在室外计算接收器位置。 GPS接收机然后在室内跟踪至少一个卫星信号，以维持采集参数，以便快速获取GPS信号。 为了节省电力，接收机自动进入睡眠状态并周期性地唤醒，即上电，以维持至少一个卫星信号跟踪。 在唤醒状态期间，当需要更新星历数据以快速获取GPS信号时，接收器从至少一个卫星信号收集星历数据。

公开(公告)号：US20070152878A1

公开(公告)日：2007-07-05

申请号：US11324144

申请日：2005-12-29

申请人： Chi-Shin Wang ,  Zongde Qiu ,  Shridhara Kudrethaya ,  Jun Mo

发明人： Chi-Shin Wang ,  Zongde Qiu ,  Shridhara Kudrethaya ,  Jun Mo

IPC分类号： G01S5/14

CPC分类号： G01S19/24 ,  G01S19/246 ,  G01S19/27 ,  G01S19/29 ,  G01S19/34

摘要： The present invention provides GPS receivers capable of tracking very weak GPS signals particularly in an indoor environment without assistance from an external server or a network. In a preferred embodiment, a GPS receiver initially acquires and locks onto GPS satellite signals to compute receiver position outdoors. The GPS receiver then tracks at least one satellite signal indoors to maintain acquisition parameters for quick acquisition of GPS signals. To save power, the receiver automatically goes to the sleep state and periodically wakes up, i.e., powers up, to maintain the at least one satellite signal tracking. During the wakeup state, the receiver collects ephemeris data from the at least one satellite signal when the ephemeris data needs to be updated for quick acquisition of GPS signals.

摘要翻译： 本发明提供了能够跟踪非常弱的GPS信号的GPS接收机，特别是在室内环境中，无需外部服务器或网络的协助。 在一个优选实施例中，GPS接收机最初获取并锁定到GPS卫星信号上以在室外计算接收器位置。 GPS接收机然后在室内跟踪至少一个卫星信号，以维持采集参数，以便快速获取GPS信号。 为了节省电力，接收机自动进入睡眠状态并周期性地唤醒，即上电，以维持至少一个卫星信号跟踪。 在唤醒状态期间，当需要更新星历数据以快速获取GPS信号时，接收器从至少一个卫星信号收集星历数据。

公开(公告)号：US07436357B2

公开(公告)日：2008-10-14

申请号：US11561749

申请日：2006-11-20

申请人： Chi-Shin Wang ,  David Wang ,  Zongde Qiu

发明人： Chi-Shin Wang ,  David Wang ,  Zongde Qiu

IPC分类号： G01S5/14 ,  G01S1/02

CPC分类号： G01S19/34 ,  G01S19/258

摘要： The present invention provides methods and systems for keeping the ephemeris in a navigational receiver current to achieve fast TTFF without the need for connecting to an aiding network or remote server. In an embodiment, the receiver keeps the ephemeris current by downloading the ephemeris in the background. In the preferred embodiment, the receiver uses a background sleep/wake up process to download current ephemeris with minimal power drain. In this embodiment, the receiver alternates between a sleep mode and a wake up mode. During the wake up mode, the receiver attempts to download current ephemeris. The receiver then goes back to the sleep mode until the next wake up to conserve power. The receiver may wake up from the sleep mode to download the ephemeris when the stored ephemeris is no longer current or the ephemeris broadcasted from a satellite has been updated or based on receiver usage patterns.

摘要翻译： 本发明提供了用于将星历保持在导航接收机当中以在不需要连接到辅助网络或远程服务器的情况下实现快速TTFF的方法和系统。 在一个实施例中，接收器通过在背景中下载星历来保持星历当前的状态。 在优选实施例中，接收机使用背景睡眠/唤醒过程以最小的功率耗散来下载当前星历。 在该实施例中，接收器在睡眠模式和唤醒模式之间交替显示。 在唤醒模式下，接收端尝试下载当前星历。 接收器然后回到睡眠模式，直到下一次唤醒以节省电量。 当存储的星历不再是当前的或者从卫星广播的星历表已被更新或基于接收机使用模式时，接收机可以从休眠模式唤醒以下载星历。

公开(公告)号：US20130054505A1

公开(公告)日：2013-02-28

申请号：US13601683

申请日：2012-08-31

申请人： Mark A. Ross ,  Zongde Qiu ,  David Jonq Wang ,  Conway Thomas Chen ,  Ronald Jen-Chuan Chwang

发明人： Mark A. Ross ,  Zongde Qiu ,  David Jonq Wang ,  Conway Thomas Chen ,  Ronald Jen-Chuan Chwang

IPC分类号： G06N5/02

CPC分类号： G06Q10/00 ,  G06F19/3481 ,  G06Q30/02 ,  G06Q30/0282 ,  G06Q50/12 ,  G09B19/0092 ,  H04L67/12 ,  H04N9/87

摘要： An example embodiment includes a life pattern detection system. The life pattern detection system includes a sensor, a data acquisition device, and a first processor. The sensor is configured to monitor actions of a user. The data acquisition device is configured to harvest signals from the sensor and produce sensor data. The first processor is configured to receive the sensor data and background data, and to execute a life pattern application including a first series of analytical steps that determines a predictable set of actions from the sensor data and the background data.

摘要翻译： 一个示例性实施例包括寿命模式检测系统。 寿命模式检测系统包括传感器，数据采集装置和第一处理器。 传感器被配置为监视用户的动作。 数据采集​​装置被配置为从传感器收集信号并产生传感器数据。 第一处理器被配置为接收传感器数据和背景数据，并且执行寿命模式应用，其包括从传感器数据和背景数据确定可预测的一组动作的第一系列分析步骤。

公开(公告)号：US20130141277A1

公开(公告)日：2013-06-06

申请号：US13312936

申请日：2011-12-06

申请人： Daming Hang ,  Zongde Qiu ,  Rui Tang ,  Daniel Babitch

发明人： Daming Hang ,  Zongde Qiu ,  Rui Tang ,  Daniel Babitch

IPC分类号： G01S19/42 ,  G01S19/33

CPC分类号： G01S19/33 ,  G01S19/425

摘要： Methods and apparatuses are disclosed for enabling a satellite-based navigation signal receiver to support multiple types of global navigation satellite systems (GNSS). A legacy GNSS receiver can support a plurality of GNSS types by software upgrade and with a new/modified radio frequency (RF) chip. There is no need to completely redesign a navigation host chip to support the multiple GNSS types. This invention offers a cost-efficient multi-GNSS solution without sacrificing the navigation performance. A GNSS baseband controller controls synchronization of measurement time for digitized data along a first signal processing path for a legacy GNSS signal and a second signal processing path for a non-legacy GNSS signal.

摘要翻译： 公开了使卫星导航信号接收机支持多种类型的全球导航卫星系统（GNSS）的方法和装置。 传统GNSS接收机可以通过软件升级和新的/修改的射频（RF）芯片来支持多种GNSS类型。 不需要完全重新设计导航主机芯片来支持多种GNSS类型。 本发明提供了一种具有成本效益的多GNSS解决方案，而不牺牲导航性能。 GNSS基带控制器控制用于传统GNSS信号的第一信号处理路径和非传统GNSS信号的第二信号处理路径的数字化数据的测量时间的同步。

公开(公告)号：US09299036B2

公开(公告)日：2016-03-29

申请号：US13601683

申请日：2012-08-31

申请人： Mark A. Ross ,  Zongde Qiu ,  David Jonq Wang ,  Conway Thomas Chen ,  Ronald Jen-Chuan Chwang

发明人： Mark A. Ross ,  Zongde Qiu ,  David Jonq Wang ,  Conway Thomas Chen ,  Ronald Jen-Chuan Chwang

IPC分类号： H03F1/26 ,  G06Q10/00 ,  G06Q30/02 ,  G06Q50/12 ,  H04L29/08 ,  G06F19/00 ,  H04N9/87 ,  G09B19/00

CPC分类号： G06Q10/00 ,  G06F19/3481 ,  G06Q30/02 ,  G06Q30/0282 ,  G06Q50/12 ,  G09B19/0092 ,  H04L67/12 ,  H04N9/87

摘要： An example embodiment includes a life pattern detection system. The life pattern detection system includes a sensor, a data acquisition device, and a first processor. The sensor is configured to monitor actions of a user. The data acquisition device is configured to harvest signals from the sensor and produce sensor data. The first processor is configured to receive the sensor data and background data, and to execute a life pattern application including a first series of analytical steps that determines a predictable set of actions from the sensor data and the background data.

摘要翻译： 一个示例性实施例包括寿命模式检测系统。 寿命模式检测系统包括传感器，数据采集装置和第一处理器。 传感器被配置为监视用户的动作。 数据采集​​装置被配置为从传感器收集信号并产生传感器数据。 第一处理器被配置为接收传感器数据和背景数据，并且执行寿命模式应用，其包括从传感器数据和背景数据确定可预测的一组动作的第一系列分析步骤。

公开(公告)号：US08860610B2

公开(公告)日：2014-10-14

申请号：US13312936

申请日：2011-12-06

申请人： Daming Hang ,  Zongde Qiu ,  Rui Tang ,  Daniel Babitch

发明人： Daming Hang ,  Zongde Qiu ,  Rui Tang ,  Daniel Babitch

IPC分类号： G01S19/33

CPC分类号： G01S19/33 ,  G01S19/425

摘要： Methods and apparatuses are disclosed for enabling a satellite-based navigation signal receiver to support multiple types of global navigation satellite systems (GNSS). A legacy GNSS receiver can support a plurality of GNSS types by software upgrade and with a new/modified radio frequency (RF) chip. There is no need to completely redesign a navigation host chip to support the multiple GNSS types. This invention offers a cost-efficient multi-GNSS solution without sacrificing the navigation performance. A GNSS baseband controller controls synchronization of measurement time for digitized data along a first signal processing path for a legacy GNSS signal and a second signal processing path for a non-legacy GNSS signal.

摘要翻译： 公开了使卫星导航信号接收机支持多种类型的全球导航卫星系统（GNSS）的方法和装置。 传统GNSS接收机可以通过软件升级和新的/修改的射频（RF）芯片来支持多种GNSS类型。 不需要完全重新设计导航主机芯片来支持多种GNSS类型。 本发明提供了一种具有成本效益的多GNSS解决方案，而不牺牲导航性能。 GNSS基带控制器控制用于传统GNSS信号的第一信号处理路径和非传统GNSS信号的第二信号处理路径的数字化数据的测量时间的同步。