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Patent Agency Ranking
公开(公告)号：US20180013508A1
公开(公告)日：2018-01-11
申请号：US15643613
申请日：2017-07-07
Applicant: ADVA Optical Networking SE
Inventor： Michael Rabinovich , Moshe Tofef
IPC: H04J3/06
CPC classification number: H04J3/0682 , H04J3/0667 , H04J3/0679
Abstract: There are provided a clock node, a controller, a method of operating the clock node and a method of operating the controller in a time distribution network (TDN) comprising the controller being in data communication with the clock nodes via a control path. The method of operating the clock node comprises: sending, from the clock node via the control path to the controller, a first timestamp-related data; receiving, by the clock node via the control path from the controller, clock-recovery control data generated by the controller using the first timestamp-related data received from the clock node; processing the received clock-recovery control data to extract data usable for phase and frequency recovery; and using the extracted data to steer frequency and phase characterizing the clock node.
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公开(公告)号：US20210294378A1
公开(公告)日：2021-09-23
申请号：US17107090
申请日：2020-11-30
Applicant: ADVA Optical Networking SE
Inventor： Michael RABINOVICH , Moshe Tofef
Abstract: There is provided a technique of clock managing in a packet data network implementing a time-transfer protocol. The technique comprises: modifying, by the timing-server, a timestamp record to enable a controllable access to data informative of the least significant part of clock-informative data (CLSP data), wherein modifying the timestamp record comprises modifying the least significant part of the timestamp record (RLSP) to comprise the CLSP data in an encrypted form or to comprise values substituting, in a predefined manner, the CLSP data; transferring the modified timestamp record to all timing-clients, wherein CLSP data are transferred in a controllable access manner; enabling access to the CLSP data merely to authorized timing-clients among the plurality of timing-clients; and enabling the authorized timing-clients to obtain the CLSP data and synchronize the respective clocks using the CLSP data together with data informative of the most significant part of the clock-informative data.
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公开(公告)号：US20180287725A1
公开(公告)日：2018-10-04
申请号：US15923241
申请日：2018-03-16
Applicant: ADVA Optical Networking SE
Inventor： Michael Rabinovich , Moshe Tofef
IPC: H04J3/06
Abstract: There is provided a method of clock management in a packet data network (PDN) implementing a time-transfer protocol and a clock controller configured to operate therein. The clock controller is configured to: obtain topology data informative of a master clock node and a slave clock node constituting end points of a PTP path in the PDN and further informative of at least part of transit nodes of said PTP path; periodically obtain data informative of queue size and link rate characterizing, during a collection period, the at least part of transit nodes in master-slave (MS) and slave-master (SM) directions; for each collection period, use the obtained queue-related data to estimate queue-induced delay asymmetry of the PTP path; and send the estimated value of queue-induced delay asymmetry to the slave node, the estimated value to be used by a clock residing on the slave node as delay asymmetry correction parameter.
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公开(公告)号：US11314276B2
公开(公告)日：2022-04-26
申请号：US16595322
申请日：2019-10-07
Applicant: ADVA Optical Networking SE
Inventor： Michael Rabinovich , Moshe Tofef , Igal Pinchasov
Abstract: There is provided a technique of time delivery in a computing system comprising a system call interface (SCI) located in a kernel space and operatively connected to a time client located in a user space. The technique comprises: using a time agent component located in the user space to measure data indicative of delay in a system time delivery and to derive therefrom a system time delivery error TES2C; using TES2C to enable correction of system time; and sending by the SCI the corrected system time in response to a “Read Clock RT” (RCRT) call received from the time client. The method can further comprise: measuring data indicative of delays in the system time delivery for RCRT calls with different priorities; and in response to a system time request received from the time client, providing the time client with system time corrected per TES2C corresponding to the recognized priority thereof.
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公开(公告)号：US10432336B2
公开(公告)日：2019-10-01
申请号：US15643613
申请日：2017-07-07
Applicant: ADVA Optical Networking SE
Inventor： Michael Rabinovich , Moshe Tofef
IPC: H04J3/06
Abstract: There are provided a clock node, a controller, a method of operating the clock node and a method of operating the controller in a time distribution network (TDN) comprising the controller being in data communication with the clock nodes via a control path. The method of operating the clock node comprises: sending, from the clock node via the control path to the controller, a first timestamp-related data; receiving, by the clock node via the control path from the controller, clock-recovery control data generated by the controller using the first timestamp-related data received from the clock node; processing the received clock-recovery control data to extract data usable for phase and frequency recovery; and using the extracted data to steer frequency and phase characterizing the clock node.
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