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1. 发明授权

US11962402B2 Systems and methods for watermarking time, place and identity of events 有权
公开(公告)号：US11962402B2
公开(公告)日：2024-04-16
申请号：US17459035
申请日：2021-08-27
申请人： HOPTROFF LONDON LIMITED
发明人： Richard Hoptroff
IPC分类号： H04W56/00 , G06N20/00 , H04B17/318 , H04J3/06 , H04W4/029
CPC分类号： H04J3/0655 , G06N20/00 , H04B17/318 , H04J3/0644 , H04J3/065 , H04J3/0667 , H04W4/029 , H04W56/0015
摘要： The present disclosure provides systems and methods for proving an event. The system comprises a network of one or more beacon nodes and each beacon node is configured to: receive a request over the network for proving a time and location for an event, and the request comprises event data generated by a requesting entity; create a timestamp for the event using a clock of the beacon node, wherein the clock is synchronized to a trusted time source; generate a hash code for the timestamp and the event data and record the hash code to a ledger at the beacon node.

2. 发明授权

US11888587B2 Tolerant PCS for accurate timestamping in disaggregated network elements and synchronization method 有权
公开(公告)号：US11888587B2
公开(公告)日：2024-01-30
申请号：US17376232
申请日：2021-07-15
申请人： Ciena Corporation
发明人： John Andrew Earl , David James Evans , David Stuart , Daniel Claude Perras
IPC分类号： H04J3/06 , H04W92/04
CPC分类号： H04J3/0667 , H04J3/067 , H04J3/0655 , H04J3/0673 , H04W92/04
摘要： A network element includes a port; and a device with circuitry configured to encode data for communication to a second device via a plurality of physical channels, and utilize one of the plurality of physical channels as a dedicated timing channel with encoding thereon different from encoding on the other plurality of physical channels, and interface encoded data via the plurality of physical channels with the port for transmission and reception with a second device.

3. 发明公开

US20230246723A1 TIME SYNCHRONIZATION BASED ON LOOKUP TABLE 审中-公开
公开(公告)号：US20230246723A1
公开(公告)日：2023-08-03
申请号：US17587542
申请日：2022-01-28
申请人： Avago Technologies Internationa lSales Pte. Limited
发明人： Shrjie Tzeng , Stephen Ho
IPC分类号： H04J3/06
CPC分类号： H04J3/0667 , H04J3/0697 , H04J3/0655
摘要： Described herein are systems and methods for implementing a look up table by a network node, and performing or supporting time synchronization based on the look up table. In one aspect, a network node may receive a packet. The network node can identify a few number of bits in the packet, and determine one or more actions or functions corresponding to the few number of bits via the look up table. In addition, the network node can execute or perform the determined one or more actions to support time synchronization.

4. 发明授权

US10505651B1 Precision time synchronization over standardized networking protocols 有权
公开(公告)号：US10505651B1
公开(公告)日：2019-12-10
申请号：US16054526
申请日：2018-08-03
申请人： WHELEN ENGINEERING COMPANY, INC.
发明人： Caleb Garrett
IPC分类号： H04J3/06 , H04L29/06
CPC分类号： H04J3/0655 , H04J3/0682 , H04L69/28 , H04J3/0635 , H04L69/22
摘要： A system, method and computer product for performing a time synchronization between first and second nodes includes the first node performing: generating a synchronization message, transmitting the synchronization message to the second node at a first time, taking a first timestamp in response to the synchronization message being transmitted and transmitting a timestamp message including the first timestamp to the second node at a second time; and the second node performing: receiving the synchronization message and the timestamp message from the first node, taking a second timestamp in response to the synchronization message being received, receiving the timestamp message from the first node, obtaining the first timestamp based on the received timestamp message, obtaining a timing offset between the first timestamp and the second timestamp and performing a time synchronization to the first node based on the timing offset.

5. 发明申请

US20190191398A1 Synchronisation of Wireless Base Stations 审中-公开
公开(公告)号：US20190191398A1
公开(公告)日：2019-06-20
申请号：US16281920
申请日：2019-02-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Stefano Ruffini , Stefano Stracca
IPC分类号： H04W56/00 , H04J3/06
CPC分类号： H04W56/002 , H04J3/0644 , H04J3/0655 , H04W56/001 , Y02D30/32
摘要： A transport network (20) is connected to a first wireless base station (3, 4) and to a second wireless base station (6). The first wireless base station comprises a remote radio unit (3) and a baseband processing unit (4) which are connected by the transport network (20). A node (16) of the transport network (20) receives a synchronous time division multiplexed communication signal which carries at least a first communication signal between the baseband processing unit (4) and the remote radio unit (3). The node (16) determines a frequency synchronisation signal from the synchronous time division multiplexed communication signal. The node (16) transmits the synchronous time division multiplexed communication signal to the remote radio unit (3) of the first wireless base station. The node (16) transmits the frequency synchronisation signal to the second wireless base station (6). The node (16) also assists with providing phase/time synchronisation to the second wireless base station (6).

6. 发明授权

US09883262B2 Optical network system, optical switch node, master node, and node 有权
公开(公告)号：US09883262B2
公开(公告)日：2018-01-30
申请号：US14407716
申请日：2013-06-13
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Kyota Hattori , Naoki Kimishima , Masahiro Nakagawa , Masaru Katayama , Akira Misawa
IPC分类号： H04J14/00 , H04Q11/00 , H04J14/02 , H04J14/08 , H04J3/08 , H04J3/06
CPC分类号： H04Q11/0005 , H04J3/0655 , H04J3/085 , H04J14/0212 , H04J14/0257 , H04J14/0267 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/08 , H04Q2011/0033 , H04Q2011/0045 , H04Q2011/005 , H04Q2011/0086 , H04Q2213/1301
摘要： An optical network system includes a master node and a plurality of optical switch nodes, allowing the number of nodes without depending on the number of wavelengths. The master node is configured to: divide a wavelength path having an arbitrary wavelength into time slots each having a predetermined time period; and allocate the time slots to each of the optical switch nodes. Each of the optical switch nodes is configured to: synchronize the time slots based on information delivered from the master node; and thereby transmit or receive a data or performs route switching.

7. 发明申请

US20160344537A1 COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND COMPUTER READABLE MEDIUM 有权
标题翻译：通信设备，通信方法和计算机可读介质
公开(公告)号：US20160344537A1
公开(公告)日：2016-11-24
申请号：US15112867
申请日：2014-05-23
申请人： Mitsubishi Electric Corporation
发明人： Daisuke OSAGAWA
IPC分类号： H04L7/00
CPC分类号： H04L7/0033 , H04J3/0655 , H04J3/0682 , H04L43/0852
摘要： A synchronous frame reception unit receives a synchronous frame describing a reference value for time synchronization with a management apparatus which is transmitted repeatedly from the management apparatus. A propagation delay computation unit computes, each time when the synchronous frame is received, a propagation delay of the synchronous frame. A propagation delay time period computation unit computes, each time when the propagation delay is computed, a propagation delay time period by adding a target value of a synchronous accuracy to the propagation delay. A propagation delays computation unit operates a logical OR operation of M pieces of propagation delay time periods computed for M pieces of synchronous frames which precede a latest synchronous frame. A synchronous determination unit decides, based on the propagation delay of the latest synchronous frame and a logical OR operation result of the M pieces of propagation delay time periods of the M pieces of synchronous frames, whether or not to use the reference value described in the latest synchronous frame for time synchronization with the management apparatus.
摘要翻译：同步帧接收单元从与管理装置重复发送的管理装置接收描述与时间同步的基准值的同步帧。传播延迟计算单元在每次接收到同步帧时计算同步帧的传播延迟。传播延迟时间计算单元通过将传播延迟的同步精度的目标值与传播延迟相加来计算传播延迟时间周期。传播延迟计算单元对于在最新的同步帧之前的M个同步帧计算的M个传播延迟时间段进行逻辑或运算。同步确定单元基于最新的同步帧的传播延迟和M个同步帧的M个传播延迟时间段的逻辑或运算结果来决定是否使用在同一帧中描述的参考值与管理装置进行时间同步的最新同步帧。

8. 发明申请

US20160164745A1 Robust Techniques for Upstream Communication Between Subscriber Stations and a Base Station 审中-公开
公开(公告)号：US20160164745A1
公开(公告)日：2016-06-09
申请号：US15011193
申请日：2016-01-29
申请人： Broadcom Corporation
发明人： Thomas J. QUIGLEY , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
IPC分类号： H04L12/24 , H04L25/03 , H04L5/00 , H04L12/28 , H04L1/00 , H04B1/10
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.

9. 发明申请

US20160112185A1 METHOD AND APPARATUS FOR CONFIGURING ONU AS IEEE1588 MASTER CLOCK IN PON 审中-公开
标题翻译：用于在PON中配置ONU作为IEEE1588主时钟的方法和装置
公开(公告)号：US20160112185A1
公开(公告)日：2016-04-21
申请号：US14894624
申请日：2014-07-10
申请人： ALCATEL LUCENT
发明人： Qin YIN , Xiao CHEN , Xili ZHANG , Jianhua ZHU
IPC分类号： H04L7/00 , H04B10/27
CPC分类号： H04L7/0075 , H04B10/27 , H04J3/0655 , H04L7/0008
摘要： A method for making IEEE 1588 master clock configuration for an ONU in a PON includes creating a PTP port on a UNI of the ONU, and generating a corresponding PTP port ME for the PTP port to indicate that the UNI is operating in a master clock mode; generating a 1588 master clock configuration data ME based on PTP port MEs of all PTP ports in the ONU, to store profiles of all PTP ports used as master clock devices; and generating a clock data set ME according to the 1588 master clock configure data ME, to indicate clock source information of all PTP ports used as master clock devices.
摘要翻译：在PON中为ONU制造IEEE 1588主时钟配置的方法包括在ONU的UNI上创建PTP端口，并为PTP端口生成相应的PTP端口ME，以指示UNI以主时钟模式工作 ; 根据ONU中所有PTP端口的PTP端口ME生成1588主时钟配置数据ME，存储用作主时钟设备的所有PTP端口的配置文件; 并根据1588主时钟配置数据ME生成时钟数据集ME，以指示用作主时钟器件的所有PTP端口的时钟源信息。

10. 发明授权

US09264213B2 Time synchronization method for communication system, slave station apparatus, master station apparatus, control device, and program 有权
标题翻译：通信系统，从站设备，主站设备，控制设备和程序的时间同步方法
公开(公告)号：US09264213B2
公开(公告)日：2016-02-16
申请号：US13976188
申请日：2012-02-06
申请人： Seiji Kozaki , Kenichi Nakura , Yoshifumi Hotta , Jun Mizuguchi
发明人： Seiji Kozaki , Kenichi Nakura , Yoshifumi Hotta , Jun Mizuguchi
IPC分类号： H04L7/00 , H04J3/06 , H04L12/24 , H04Q11/00
CPC分类号： H04L7/0075 , H04B10/032 , H04B10/272 , H04J3/0641 , H04J3/0655 , H04J3/0667 , H04Q11/0067 , H04Q2011/0081
摘要： A time synchronization method for a communication system configured to perform protection switching, the communication system including a first network in which a master station and a slave station are connected via plural physical lines including a working line and a backup line and a second network connected to the slave station, the method including a time synchronization in which the slave station executes, when not detecting a communication failure of a downlink signal transmitted from the master station, synchronization processing for synchronizing, based on a clock of the slave station and timing information, time information transmitted to the second network with time information included in a time synchronization command and suppresses, when detecting a communication failure or receiving a switching notification from the master station apparatus, a synchronization error due to a difference between the clock of the slave station and the timing information.
摘要翻译：一种被配置为执行保护切换的通信系统的时间同步方法，所述通信系统包括第一网络，其中主站和从站经由包括工作线路和备用线路的多条物理线路连接，并且第二网络连接到从站，在不检测从主站发送的下行链路信号的通信故障时，包括从站执行的时间同步的方法，用于基于从站的时钟和定时信息同步的同步处理，在时间同步命令中包含时间信息发送到第二网络的时间信息，并且当检测到通信故障或从主站装置接收到切换通知时，抑制由于从站的时钟与时钟之间的差异导致的同步误差时间信息。

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