公开(公告)号：US08559902B2

公开(公告)日：2013-10-15

申请号：US12915841

申请日：2010-10-29

申请人： Polly Huang ,  Po-Yen Lin ,  Ling-Jyh Chen ,  Jyh-How Huang

发明人： Polly Huang ,  Po-Yen Lin ,  Ling-Jyh Chen ,  Jyh-How Huang

IPC分类号： H04B1/06 ,  H04B7/00 ,  H04M1/10 ,  H04B1/38

CPC分类号： H04W52/0254 ,  H04M1/72569 ,  H04M2250/12 ,  H04W52/282 ,  Y02D70/164

摘要： An operation method and a radio device for controlling a power switch of a radio based on moving speed. The radio device includes a speed estimator and an operator. The speed estimator is used for estimating the moving speed of the radio device, and the operator is used for comparing the moving speed of the radio device with a speed threshold value so as to turn on/off the power switch of the radio device. The power switch of the radio device can be controlled based on the moving speed so as to decrease the time the radio device stays on, thus reducing the power consumption of the radio device.

摘要翻译： 一种用于基于移动速度控制无线电的电源开关的操作方法和无线电设备。 无线电设备包括速度估计器和操作器。 速度估计器用于估计无线电设备的移动速度，并且操作者用于将无线电设备的移动速度与速度阈值进行比较，以便打开/关闭无线电设备的电源开关。 无线电设备的电源开关可以根据移动速度进行控制，以减少无线电设备停留的时间，从而降低无线电设备的功耗。

公开(公告)号：US08384590B2

公开(公告)日：2013-02-26

申请号：US12967699

申请日：2010-12-14

申请人： Polly Huang ,  Seng-Yong Lau ,  Ling-Jyh Chen ,  Jyh-How Huang

发明人： Polly Huang ,  Seng-Yong Lau ,  Ling-Jyh Chen ,  Jyh-How Huang

IPC分类号： G01S19/23 ,  G01S19/03

CPC分类号： G01S19/34 ,  G04R40/06

摘要： The present invention relates to a system, and a method for time synchronization with low power consumption and high accuracy. The system comprises a plurality of devices for time synchronization. Each device comprises a GPS receiver, a microprocessor, and an oscillator. The microprocessor generates a drift per second according to the difference between the PPS signal and the clock signal, and calibrates the clock signal constantly according to drift per second. The GPS receiver is turned off when the drift per second is obtained, and then is turned on after a pre-determined time period for updating the drift per second.

摘要翻译： 本发明涉及一种系统和一种低功耗，高精度的时间同步方法。 该系统包括用于时间同步的多个装置。 每个设备包括GPS接收器，微处理器和振荡器。 微处理器根据PPS信号和时钟信号之间的差异每秒产生漂移，并根据每秒的漂移量不断校准时钟信号。 当获得每秒漂移时，GPS接收机被关闭，然后在用于更新每秒漂移的预定时间段之后被接通。

公开(公告)号：US20120050100A1

公开(公告)日：2012-03-01

申请号：US12967699

申请日：2010-12-14

申请人： Polly HUANG ,  Seng-Yong Lau ,  Ling-Jyh Chen ,  Jyh-How Huang

发明人： Polly HUANG ,  Seng-Yong Lau ,  Ling-Jyh Chen ,  Jyh-How Huang

IPC分类号： G01S19/48

CPC分类号： G01S19/34 ,  G04R40/06

摘要： The present invention relates to a system, and a method for time synchronization with low power consumption and high accuracy. The system comprises a plurality of devices for time synchronization. Each device comprises a GPS receiver, a microprocessor, and an oscillator. The microprocessor generates a drift per second according to the difference between the PPS signal and the clock signal, and calibrates the clock signal constantly according to drift per second. The GPS receiver is turned off when the drift per second is obtained, and then is turned on after a pre-determined time period for updating the drift per second.

摘要翻译： 本发明涉及一种系统和一种低功耗，高精度的时间同步方法。 该系统包括用于时间同步的多个装置。 每个设备包括GPS接收器，微处理器和振荡器。 微处理器根据PPS信号和时钟信号之间的差异每秒产生漂移，并根据每秒的漂移量不断校准时钟信号。 当获得每秒漂移时，GPS接收机被关闭，然后在用于更新每秒漂移的预定时间段之后被接通。

公开(公告)号：US20120034877A1

公开(公告)日：2012-02-09

申请号：US12915841

申请日：2010-10-29

申请人： Polly HUANG ,  Po-Yen Lin ,  Ling-Jyh Chen ,  Jyh-How Huang

发明人： Polly HUANG ,  Po-Yen Lin ,  Ling-Jyh Chen ,  Jyh-How Huang

IPC分类号： H04B17/00

CPC分类号： H04W52/0254 ,  H04M1/72569 ,  H04M2250/12 ,  H04W52/282 ,  Y02D70/164

摘要： An operation method and a radio device for controlling power switch of radio based on moving speed are provided. The radio device comprises a speed estimator and an operator. The speed estimator is used for estimating the moving speed of the radio device, and the operator is used for comparing the moving speed of the radio device with a speed threshold value so as to turn on/off the power switch of the radio device. Thereby, the power switch of the radio device can be controlled based on the moving speed so as to decrease the time the radio device staying on, thus reducing the power consumption of the radio device.

摘要翻译： 提供了一种用于基于移动速度控制无线电的电源开关的操作方法和无线电设备。 无线电设备包括速度估计器和操作者。 速度估计器用于估计无线电设备的移动速度，并且操作者用于将无线电设备的移动速度与速度阈值进行比较，以便打开/关闭无线电设备的电源开关。 由此，可以根据移动速度来控制无线装置的电源开关，以减少无线装置停留的时间，从而降低无线装置的电力消耗。

公开(公告)号：US20080201076A1

公开(公告)日：2008-08-21

申请号：US11935288

申请日：2007-11-05

申请人： Jyh-How Huang ,  Shivakant Mishra ,  Saqib Amijad

发明人： Jyh-How Huang ,  Shivakant Mishra ,  Saqib Amijad

IPC分类号： G01C21/00

CPC分类号： G01C21/00

摘要： Systems and method provide witness based tracking. An encounter with a first mobile sensor module and a second mobile sensor module is determined. At least one witness event of the encounter is recorded, the witness event comprising a mobile ID of at least one of the first and second mobile sensor modules and a time of the encounter. Stored witness events are exchanged between the first and second mobile sensor modules. Stored witness events are transmitted to an access point when the access point is within communication range of at least one of the first and second mobile sensor modules. Received witness events are sent from the access point to a data processing center and stored within a database. The witness events stored within the database are processed to determine a last encounter of one or both of the first and second mobile sensor modules.

摘要翻译： 系统和方法提供基于证据的跟踪。 确定与第一移动传感器模块和第二移动传感器模块的碰撞。 记录遇难的至少一个见证事件，该证人事件包括第一和第二移动传感器模块中的至少一个的移动ID以及遇到的时间。 在第一和第二移动传感器模块之间交换存储的见证事件。 当接入点在第一和第二移动传感器模块中的至少一个的通信范围内时，存储的见证事件被发送到接入点。 收到的见证事件从接入点发送到数据处理中心并存储在数据库中。 处理存储在数据库内的见证事件以确定第一和第二移动传感器模块中的一个或两个的最后一次遇到。