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1. 发明授权

US09453917B2 Methods for subnanosecond time synchronizing using RTK receivers and devices thereof 有权
标题翻译：使用RTK接收机及其设备进行亚纳秒时间同步的方法
公开(公告)号：US09453917B2
公开(公告)日：2016-09-27
申请号：US14260045
申请日：2014-04-23
申请人： Spectracom Corporation
发明人： John Fischer , Paul E. Myers
IPC分类号： G01S19/44 , G01S19/23 , G01S19/14 , G01S19/39 , G01S5/02
CPC分类号： G01S19/23 , G01S5/021 , G01S19/14 , G01S19/235 , G01S19/39
摘要： A method, non-transitory computer readable medium and timing computing device for subnanosecond time synchronization. A difference between synchronized measurements of one of a plurality of satellite signals from a reference receiver and another receiver for each of N values within a cycle is determined. A clock bias error is calculated for each of the N values. The calculated clock bias errors are stored in a vector over time for each of the N values, with one of the vectors for each of the N values. A trajectory of the vectors over time is determined. The one of the vectors with a best convergence over time is selected. A timing signal is adjusted based on the N value for the selected one of the vectors with the best convergence over time.
摘要翻译：一种用于亚纳秒时间同步的方法，非暂时性计算机可读介质和计时计算装置。确定一个周期内的N个值中的每一个的来自参考接收机的多个卫星信号中的一个卫星信号与另一个接收机之间的同步测量值之间的差异。计算N个值中的每一个的时钟偏差误差。计算出的时钟偏差误差被存储在N个值中的每一个的时间上的向量中，其中N个值中的每一个的向量之一。确定矢量随时间的轨迹。选择具有最佳收敛时间的向量中的一个。基于时间上具有最佳收敛性的所选择的一个矢量的N值来调整定时信号。

2. 发明申请

US20160127036A1 INDEPENDENT FIBER-OPTIC REFERENCE APPARATUSES AND METHODS THEREOF 有权
标题翻译：独立的光纤参考装置及其方法
公开(公告)号：US20160127036A1
公开(公告)日：2016-05-05
申请号：US14532620
申请日：2014-11-04
申请人： Spectracom Corporation
发明人： David Sohn
IPC分类号： H04B10/079 , H04Q11/00
CPC分类号： G04F5/00 , H04B10/0795
摘要： A reference management apparatus includes a reference signal housing, a fixed length propagation device, an oscillator device, and a reference management computing device. The reference signal housing having a propagation signal output and a propagation signal input. The fixed length propagation device is coupled between the propagation signal output and the propagation signal input. The reference signal management computing device is coupled to the oscillator device and the propagation signal input. The reference signal management computing device also comprises at least one of configurable hardware logic configured to implement or a memory coupled to the processor which is configured to be capable of executing programmed instructions comprising and stored in the memory to: detect a start and an end of a transmission of at least one pulse signal through the fixed length propagation device; measure propagation time of the at least one pulse signal through the fixed length propagation device; and utilize the measured propagation time for managing a reference signal.
摘要翻译：参考管理装置包括参考信号外壳，固定长度传播装置，振荡器装置和参考管理计算装置。参考信号壳体具有传播信号输出和传播信号输入。固定长度传播装置耦合在传播信号输出和传播信号输入之间。参考信号管理计算装置耦合到振荡器装置和传播信号输入。参考信号管理计算设备还包括被配置为实现的可配置硬件逻辑中的至少一个或耦合到处理器的存储器，该存储器被配置为能够执行包括并存储在存储器中的编程指令，以便：检测存储器的开始和结束通过固定长度传播装置传输至少一个脉冲信号; 测量所述至少一个脉冲信号通过所述固定长度传播装置的传播时间; 并利用测量的传播时间来管理参考信号。

3. 发明申请

US20150268352A1 METHODS FOR SUBNANOSECOND TIME SYNCHRONIZING USING RTK RECEIVERS AND DEVICES THEREOF 有权
标题翻译：使用RTK接收机的子网时间同步方法及其设备
公开(公告)号：US20150268352A1
公开(公告)日：2015-09-24
申请号：US14260045
申请日：2014-04-23
申请人： Spectracom Corporation
发明人： John Fischer , Paul E. Myers
IPC分类号： G01S19/44 , G01S19/23 , G01S19/04
CPC分类号： G01S19/23 , G01S5/021 , G01S19/14 , G01S19/235 , G01S19/39
摘要： A method, non-transitory computer readable medium and timing computing device for subnanosecond time synchronization. A difference between synchronized measurements of one of a plurality of satellite signals from a reference receiver and another receiver for each of N values within a cycle is determined. A clock bias error is calculated for each of the N values. The calculated clock bias errors are stored in a vector over time for each of the N values, with one of the vectors for each of the N values. A trajectory of the vectors over time is determined. The one of the vectors with a best convergence over time is selected. A timing signal is adjusted based on the N value for the selected one of the vectors with the best convergence over time.
摘要翻译：一种用于亚纳秒时间同步的方法，非暂时性计算机可读介质和计时计算装置。确定一个周期内的N个值中的每一个的来自参考接收机的多个卫星信号中的一个卫星信号与另一个接收机之间的同步测量值之间的差异。计算N个值中的每一个的时钟偏差误差。计算出的时钟偏差误差被存储在N个值中的每一个的时间上的向量中，其中N个值中的每一个的向量之一。确定矢量随时间的轨迹。选择具有最佳收敛时间的向量中的一个。基于时间上具有最佳收敛性的所选择的一个矢量的N值来调整定时信号。

4. 发明授权

US10241211B2 Methods of location using GNSS simulators and devices thereof 有权
公开(公告)号：US10241211B2
公开(公告)日：2019-03-26
申请号：US15140086
申请日：2016-04-27
申请人： Spectracom Corporation
发明人： Lisa Perdue , David Sohn , Paul Myers
IPC分类号： G01S19/05 , G01S19/11 , G01S19/25 , G01S19/13
摘要： A method, GNSS simulator, and non-transitory computer readable medium for providing a simulated global navigation satellite system (GNSS) signal. The method includes receiving, by a GNSS simulator, a precision timing signal and one or more items of ephemeris data from a GNSS receiver based on a decoded GNSS signal received by the GNSS receiver. The precision timing signal and the one or more items of GNSS ephemeris data are received in a digital format over a communication network. A simulated GNSS signal is generated, by the GNSS simulator, based on the received precision timing signal and one or more items of ephemeris data. The simulated GNSS signal is transmitted, by the GNSS simulator, over a coverage area. A GNSS system for providing a simulated GNSS signal is also disclosed.

5. 发明授权

US09703266B2 Independent fiber-optic reference apparatuses and methods thereof 有权
公开(公告)号：US09703266B2
公开(公告)日：2017-07-11
申请号：US14532620
申请日：2014-11-04
申请人： Spectracom Corporation
发明人： David Sohn
IPC分类号： H04B10/079 , G04F5/00
CPC分类号： G04F5/00 , H04B10/0795
摘要： A reference management apparatus includes a reference signal housing, a fixed length propagation device, an oscillator device, and a reference management computing device. The reference signal housing having a propagation signal output and a propagation signal input. The fixed length propagation device is coupled between the propagation signal output and the propagation signal input. The reference signal management computing device is coupled to the oscillator device and the propagation signal input. The reference signal management computing device also comprises at least one of configurable hardware logic configured to implement or a memory coupled to the processor which is configured to be capable of executing programmed instructions comprising and stored in the memory to: detect a start and an end of a transmission of at least one pulse signal through the fixed length propagation device; measure propagation time of the at least one pulse signal through the fixed length propagation device; and utilize the measured propagation time for managing a reference signal.

6. 发明申请

US20160320491A1 METHODS OF INDOOR LOCATION USING GNSS SIMULATORS AND DEVICES THEREOF 审中-公开
标题翻译：使用GNSS模拟器和其设备的室内位置的方法
公开(公告)号：US20160320491A1
公开(公告)日：2016-11-03
申请号：US15140086
申请日：2016-04-27
申请人： Spectracom Corporation
发明人： Lisa Perdue , David Sohn , Paul Myers
IPC分类号： G01S19/05 , G01S19/13
CPC分类号： G01S19/11 , G01S19/05 , G01S19/13 , G01S19/25 , G01S19/258
摘要： A method, GNSS simulator, and non-transitory computer readable medium for providing a simulated global navigation satellite system (GNSS) signal. The method includes receiving, by a GNSS simulator, a precision timing signal and one or more items of ephemeris data from a GNSS receiver based on a decoded GNSS signal received by the GNSS receiver. The precision timing signal and the one or more items of GNSS ephemeris data are received in a digital format over a communication network. A simulated GNSS signal is generated, by the GNSS simulator, based on the received precision timing signal and one or more items of ephemeris data. The simulated GNSS signal is transmitted, by the GNSS simulator, over a coverage area. A GNSS system for providing a simulated GNSS signal is also disclosed.
摘要翻译：一种用于提供模拟的全球导航卫星系统（GNSS）信号的方法，GNSS模拟器和非暂时计算机可读介质。该方法包括：通过GNSS模拟器，基于由GNSS接收机接收的解码的GNSS信号，从GNSS接收器接收精确定时信号和一个或多个星历数据项。通过通信网络以数字格式接收精确定时信号和GNSS星历数据的一个或多个项目。 GNSS模拟器基于接收的精确定时信号和一个或多个星历数据项产生模拟GNSS信号。模拟GNSS信号由GNSS模拟器在覆盖区域上传输。还公开了一种用于提供模拟GNSS信号的GNSS系统。

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