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1. 发明申请

US20180294946A1 OPTICAL TIME DISTRIBUTOR AND PROCESS FOR OPTICAL TWO-WAY TIME-FREQUENCY TRANSFER 审中-公开
公开(公告)号：US20180294946A1
公开(公告)日：2018-10-11
申请号：US15827482
申请日：2017-11-30
申请人： Government of the United States of America, as represented by the Secretary of Commerce
发明人： Laura C. Sinclair , Nathan R. Newbury , William C. Swann , Hugo Bergeron , Jean-Daniel Deschenes
IPC分类号： H04L7/00 , H04B10/112 , H04B10/40 , H04B10/61
CPC分类号： H04L7/0075 , G04C11/00 , G04G7/00 , H04B10/11 , H04B10/112 , H04B10/1125 , H04B10/40 , H04B10/548 , H04B10/61 , H04J3/00 , H04L7/0008
摘要： An optical time distributor includes: a master clock including: a master comb; a transfer comb; and a free-space optical terminal; and a remote clock in optical communication with the master clock via a free space link and including: a remote comb that produces: a remote clock coherent optical pulse train output; a remote coherent optical pulse train; a free-space optical terminal in optical communication: with the remote comb; and with the free-space optical terminal of the master clock via the free space link, and that: receives the remote coherent optical pulse train from the remote comb; receives the master optical signal from the free-space optical terminal of the master clock; produces the remote optical signal in response to receipt of the remote coherent optical pulse train; and communicates the remote optical signal to the free-space optical terminal of the master clock.

2. 发明授权

US08923346B2 Time synchronization method, device and system 有权
标题翻译：时间同步方法，设备和系统
公开(公告)号：US08923346B2
公开(公告)日：2014-12-30
申请号：US13531789
申请日：2012-06-25
申请人： Bingbo Li , Long Jiang , Wenguang Xu , Wenhua Sun , Yuanxin Xu , Shumin Chen , Yang Wang , Chuangang Wang
发明人： Bingbo Li , Long Jiang , Wenguang Xu , Wenhua Sun , Yuanxin Xu , Shumin Chen , Yang Wang , Chuangang Wang
IPC分类号： H04J3/06 , G04G7/00 , G04C11/00 , H04M11/06
CPC分类号： H04J3/0638 , G04C11/00 , G04G7/00 , G04G7/02 , H04J3/0667 , H04M11/062 , H04Q2213/13039
摘要： A time synchronization method includes: after sending a synchronization message to the opposite end, sending a following message where an ending time for sending the synchronization message is recorded; receiving a delay request message sent by the opposite end, and sending a delay response message where the initial time for receiving the delay request message is recorded; receiving the synchronization message and the following message, and recording the initial time for receiving the synchronization message and the ending time recorded in the following message for sending the synchronization message; sending a delay request message, and recording an ending time for sending the delay request message; receiving a delay response message, and recording an initial time recorded in the delay response message for the opposite end to receive the delay request message; calculating the time offset value between the two ends, and completing time synchronization.
摘要翻译：时间同步方法包括：在向对端发送同步消息之后，发送下一个消息，其中记录用于发送同步消息的结束时间; 接收相对端发送的延迟请求消息，并发送延迟响应消息，其中记录用于接收延迟请求消息的初始时间; 接收同步消息和以下消息，并且记录用于接收同步消息的初始时间和记录在下一消息中的结束时间，用于发送同步消息; 发送延迟请求消息，并记录用于发送延迟请求消息的结束时间; 接收延迟响应消息，并记录记录在相对端的延迟响应消息中的初始时间以接收延迟请求消息; 计算两端之间的时间偏移值，并完成时间同步。

3. 发明授权

US06314059B1 Electronically controlled, mechanical timepiece and control method for the same 有权
标题翻译：电子控制，机械时计及其控制方法
公开(公告)号：US06314059B1
公开(公告)日：2001-11-06
申请号：US09163112
申请日：1998-09-29
申请人： Eisaku Shimizu , Kunio Koike , Hidenori Nakamura
发明人： Eisaku Shimizu , Kunio Koike , Hidenori Nakamura
IPC分类号： G04B100
CPC分类号： G04C10/00 , G04C3/00 , G04C11/00
摘要： A timepiece includes a mechanical energy source, a generator, and a train wheel connecting the mechanical energy source and the generator. The mechanical energy source drives the train wheel to cause the generator to rotate thereby creating electrical power. A rotation controller coupled to the generator controls the rotation of the generator, and includes a rotation detector for detecting the rotation of the generator and generating a rotation signal corresponding to the rotation and a reference signal generator for generating a reference signal based on a signal from a time reference source. The brake controller counts the reference signal and produces a first count, counts the rotation signal and produces a second count, and brakes the rotation of the generator when the first count is less than the second count.
摘要翻译：钟表包括机械能源，发电机和连接机械能源和发电机的轮系。机械能源驱动轮系使发电机旋转，从而产生电力。耦合到发电机的旋转控制器控制发电机的旋转，并且包括旋转检测器，用于检测发电机的旋转并产生对应于旋转的旋转信号和参考信号发生器，用于基于来自时间参考源。制动控制器对参考信号进行计数并产生第一计数，对旋转信号进行计数并产生第二计数，并且当第一计数小于第二计数时，制动发电机的旋转。

4. 发明授权

US06169709A Watch movement 有权
标题翻译：看运动
公开(公告)号：US06169709A
公开(公告)日：2001-01-02
申请号：US09232648
申请日：1999-01-19
申请人： Konrad Schafroth
发明人： Konrad Schafroth
IPC分类号： G04B100
CPC分类号： G04C10/00 , G04C11/00
摘要： A timepiece movement proposed has a spring which drives, via gearing, a time display and a generator (1) supplying an a.c. voltage. The generator (1) powers, via a voltage-transformer circuit (2), a first capacitative component (10). The first capacitative component (10) powers an electronic reference circuit (3, 4, 5) with a stable oscillator (3, 4) and an electronic control circuit (6, 7, 8, 9). The first capacitative component (10) is charged immediately after the movement is started for the first time by one or more passive components. The one or more passive components are replaced, or supplemented in parallel, by one or more active units as soon as the voltage of the first capacitative component (10) is sufficient to operate the one or more active units, the one or more active units having a lower electrical resistance in the pass direction then the one or more passive components.
摘要翻译：所提出的钟表运动具有通过齿轮传动来驱动时间显示的弹簧和提供交流电的发电机（1）。电压。发电机（1）通过电压 - 变压器电路（2），第一电容分量（10）供电。第一电容部件（10）用稳定的振荡器（3,4）和电子控制电路（6,7,8,9）为电子参考电路（3,4,5）供电。第一电容分量（10）在第一次由一个或多个无源部件开始移动之后立即被充电。只要第一电容分量（10）的电压足以操作一个或多个有效单元，一个或多个有源单元（1）或多个有源单元在通过方向上具有较低的电阻，然后是一个或多个无源部件。

5. 发明授权

US3345520A Gyro-chronometer system for generating precise time base electrical signals and means responsive thereto for sequencing events 失效
标题翻译：用于产生精确的时基电信号的陀螺计时器系统以及响应于此的顺序事件的装置
公开(公告)号：US3345520A
公开(公告)日：1967-10-03
申请号：US39510364
申请日：1964-09-08
申请人： BROWNING WILLIAM H , PADGETT EDWARD D
发明人： BROWNING WILLIAM H , PADGETT EDWARD D
IPC分类号： G04C11/00 , G04F5/04 , H02P23/00
CPC分类号： G04C11/00 , G04F5/04 , H02P23/16 , Y10T74/12 , Y10T74/1261 , Y10T74/1279

6. 发明授权

US502157A Electric-clock synchronizer 失效
公开(公告)号：US502157A
公开(公告)日：1893-07-25
申请号：US502157D
CPC分类号： G04C11/00

7. 发明授权

US496134A Electric synchronizer for clocks 失效
公开(公告)号：US496134A
公开(公告)日：1893-04-25
申请号：US496134D
CPC分类号： G04C11/00

8. 发明授权

US333132A Saeah j 失效
公开(公告)号：US333132A
公开(公告)日：1885-12-29
申请号：US333132D
CPC分类号： G04C11/00

9. 发明授权

US292962A Chaeles x 失效
公开(公告)号：US292962A
公开(公告)日：1884-02-05
申请号：US292962D
CPC分类号： G04C11/00

10. 发明授权

US09645272B2 Method and apparatus for synchronizing clocks underwater using light and sound 有权
公开(公告)号：US09645272B2
公开(公告)日：2017-05-09
申请号：US14588558
申请日：2015-01-02
申请人： TRACKSERVER, INC.
发明人： Jonathan C. Crowell
IPC分类号： G04G7/00 , H04B11/00 , G04C11/00 , G01V1/38
CPC分类号： G04C11/00 , G01S19/13 , G01V1/3852 , G01V2200/12 , G04G7/00 , H04B10/80 , H04B11/00 , H04B13/02 , H04L7/0075
摘要： Methods and systems for synchronizing clocks used in underwater devices is described. All clocks have some drift due to frequency accuracy and this disclosure provides a method for periodically synchronizing clocks to an accurate master clock to remove long term drift. A synchronization device can use an accurate clock and hardware to transmit both a sound wave and light pulse at the same point in time. Remote slave clocks can detect the light first, and later the sound, allowing them to calculate the distance the pulse had to travel. The clocks can then synchronize their time to the master clock canceling out any drift. The synchronization device can be packaged in a waterproof housing and can be moved around on a periodic basis between the clock on an underwater robot or any other means.

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