公开(公告)号：US20200220636A1

公开(公告)日：2020-07-09

申请号：US16595322

申请日：2019-10-07

Applicant: ADVA Optical Networking SE

Inventor： Michael RABINOVICH ,  Moshe TOFEF ,  Igal PINCHASOV

IPC: H04J3/06 ,  H04L7/00 ,  G06F1/14 ,  H04L12/26 ,  G06F9/54 ,  H04L29/06

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.

公开(公告)号：US10666461B2

公开(公告)日：2020-05-26

申请号：US16002720

申请日：2018-06-07

Applicant: ADVA Optical Networking SE

Inventor： Timothy J. Shearer

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/931

Abstract: A network edge device may be placed at a location to participate in a VLAN using a specific VLAN ID without expressly programming the network edge device to use that specific VLAN ID. The network edge device is connected to a network to receive ingressing frames from the network and to send egressing frames to the network. The network edge device copies a specific VLAN ID from an ingressing VLAN message into memory and subsequently reads the specific VLAN ID from the memory for use in tagging frames egressing from the network edge device with the specific VLAN ID so that the egressing frames are VLAN conformant. The network edge device may communicate with non-edge devices at the same location as the network edge device.

公开(公告)号：US10579331B2

公开(公告)日：2020-03-03

申请号：US15632185

申请日：2017-06-23

Applicant: ADVA Optical Networking SE

Inventor： Stephen Strode

IPC: G06F5/14 ,  G06F1/08 ,  H04L7/00 ,  G06F5/12

Abstract: A fill level control apparatus configured to control the average fill level of an asynchronous first-in-first-out, FIFO, the fill level control apparatus comprising an offset calculation unit adapted to or configured to calculate the offset between a programmable target average fill level and the current average fill level of the FIFO and an adjustment unit adapted to or configured to adjust continuously the empty rate of the FIFO in response to the calculated offset to keep the average fill level of the FIFO constant.

公开(公告)号：US10433325B2

公开(公告)日：2019-10-01

申请号：US15691261

申请日：2017-08-30

Applicant: ADVA Optical Networking SE

Inventor： Daniel Muench

IPC: H04L1/00 ,  H04W72/12 ,  H04L7/00 ,  H04L12/801 ,  H04W28/02 ,  H04W56/00 ,  H04L29/08 ,  H04W88/08

Abstract: A method for scheduling a transmission of packets within a network using a common periodic time window, having a congestion protected section, partitioned into time slots, including time slots dedicated to packets being sensitive to a delay variation.

公开(公告)号：US10432306B2

公开(公告)日：2019-10-01

申请号：US15965815

申请日：2018-04-27

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: H04B10/079 ,  G01M11/00 ,  H04B10/071 ,  H04B10/25 ,  H04J14/02

Abstract: An optical time-domain reflectometer, OTDR, apparatus is configured to measure a backscattered trace of a fiber link under test (FLUT). The OTDR apparatus includes at least one photo diode adapted to detect an optical signal reflected from points along the fiber link under test in response to an optical test signal generated by a laser of the OTDR apparatus and supplied to the fiber link under test. The reflected optical test signal is attenuated or amplified automatically such that the power of the optical signal received by the photodiode is limited to a predetermined power range.

公开(公告)号：US10362501B2

公开(公告)日：2019-07-23

申请号：US15663217

申请日：2017-07-28

Applicant: ADVA Optical Networking SE

Inventor： Cornelius Fuerst ,  Wayne Sankey

IPC: H04W24/06 ,  H04B10/40 ,  H04L1/00 ,  H04L25/49

Abstract: An apparatus for monitoring a performance of an Ethernet data stream, EDS, said apparatus comprising: an evaluation unit adapted to evaluate sync headers and block type fields of line code vectors of the Ethernet data stream, EDS; and a counter unit adapted to increment at least one performance counter in response to the evaluated sync header and the evaluated block type field of each line code vector of the Ethernet data stream, EDS.

公开(公告)号：US10355445B2

公开(公告)日：2019-07-16

申请号：US15831739

申请日：2017-12-05

Applicant: ADVA Optical Networking SE

Inventor： Patrick Berthoud

IPC: H01S5/06 ,  H01S5/40 ,  H01S5/022 ,  H01S5/024 ,  H01S5/042 ,  H01S5/068 ,  H01S5/0683

Abstract: A redundant optical radiant energy source, especially for metrology applications, including a redundant optical device for creating optical radiation including at least two semiconductor lasers, which are provided on a thermally conducting laser support, at least one thermal sensor configured to detect the temperature of the laser support or at least one of the semiconductor lasers, respectively; and a heating/cooling device thermally connected to or integrally provided with the laser support.

公开(公告)号：US10228519B2

公开(公告)日：2019-03-12

申请号：US15966219

申请日：2018-04-30

Applicant: ADVA Optical Networking SE

Inventor： Andreas Färbert ,  Markus Noller

IPC: G02B6/38 ,  G02B6/42 ,  H04B10/07

Abstract: An optical connecting system for connecting a first and a second optical device includes a first and a second multi-fiber device connector included in the first and second optical device and a multi-fiber optical connection cable including a plurality of optical fibers and having a first and a second multi-fiber cable connector at a first and second end thereof and being adapted to be connected to the first and second multi-fiber device connector. The optical devices are configured to transmit to and/or receive from the other optical device wanted optical data signals via optical fibers of the multi-optical fiber connection cable.

公开(公告)号：US20180205461A1

公开(公告)日：2018-07-19

申请号：US15406027

申请日：2017-01-13

Applicant: ADVA Optical Networking SE

Inventor： Mohammad ALFIAD ,  Sorin TIBULEAC ,  Cornelius FUERST ,  Christophe MEYER

IPC: H04B10/2513 ,  H04J14/02

CPC classification number: H04B10/2513 ,  H04B10/25133 ,  H04J14/02

Abstract: A chromatic dispersion compensation apparatus for automatic compensation of chromatic dispersion of signals transmitted via an optical link at predetermined wavelengths of WDM channels within a predetermined band. A tapping unit taps optical signals received by the chromatic dispersion compensation apparatus via the optical link at predetermined wavelengths and supply them to an optical coherent receiver adapted to tune its local oscillator to WDM channels to generate corresponding analog electrical signals of the WDM channels which are sampled by an analog digital converter to provide digital signal samples of WDM channels processed by a digital signal processor of the chromatic dispersion compensation apparatus to calculate an estimate residual chromatic dispersion value of the received optical signals. A tuneable dispersion compensation module is set to perform optical compensation of a residual chromatic dispersion of the received optical signals depending on calculated estimate residual chromatic dispersion value of the received optical signals.

公开(公告)号：US09923756B2

公开(公告)日：2018-03-20

申请号：US14484223

申请日：2014-09-11

Applicant: ADVA Optical Networking SE

Inventor： Michael Waldo

IPC: H04L1/00 ,  H04L12/24 ,  H04L12/26

CPC classification number: H04L41/06 ,  H04L41/0213 ,  H04L43/0811

Abstract: A Maintenance Entity Group, MEG, End Point, MEP, of a subnetwork within a multi-domain network, said MEP comprising an encapsulation unit configured to encapsulate SOAM frames received by a passive Service Access Point, SAP, of the MEP and a decapsulation unit configured to decapsulate encapsulated SOAM frames received by an active Service Access Point, SAP, of the MEP.