公开(公告)号：US10432691B2

公开(公告)日：2019-10-01

申请号：US15287905

申请日：2016-10-07

Applicant: TRANSMODE SYSTEMS AB

Inventor： Magnus Svevar ,  Håkan Nivestedt ,  Jens Rasmussen

IPC: H04L29/06 ,  H04J3/06 ,  H04L12/841 ,  H04L7/00 ,  H04L12/64

Abstract: Methods, system, nodes and computer program for transmission of a synchronous data stream having a bitrate, over an asynchronous packet data network between a transmitter node and a receiver node comprising: packaging, by the transmitter node, the synchronous data stream into data packets, transmitting, by the transmitter node, the data packets onto the asynchronous packet data network with a fixed packet rate defined by a first clock frequency which corresponds to the average distance in time between two consecutive data packets transmitted onto the asynchronous packet data network, which is independent of the bitrate of the synchronous data stream, receiving, by the receiver node, the data packets from the asynchronous packet data network detecting, by the receiver node, the fixed packet rate, and based on the fixed packet rate, regenerating, by the receiver node, the first clock frequency by detection of the distance in time between two consecutive data packets received from the asynchronous packet data network.

公开(公告)号：US10079638B2

公开(公告)日：2018-09-18

申请号：US15686460

申请日：2017-08-25

Applicant: TRANSMODE SYSTEMS AB

Inventor： Bengt Johansson ,  Magnus Svevar ,  Ola Wikström ,  Mats Plantare ,  Jan Skagerlund

IPC: H04B10/25 ,  H04B10/032 ,  H04B10/275 ,  H04B10/2575 ,  H04J14/02 ,  H04J14/08 ,  H04B10/079 ,  H04L7/00

CPC classification number: H04B10/032 ,  H04B10/0795 ,  H04B10/2575 ,  H04B10/275 ,  H04J14/0201 ,  H04J14/08 ,  H04L7/0075

Abstract: An optical system is provided comprising a first node and a channel drop add device. The first node is configured to transmit data onto an optical fiber in a first line direction. The channel drop add device (501) is adapted to receive and add channels onto the optical fiber thereby transmitting the data into the first and a second line direction. The network further comprises a second node configured to form a transmitter/receiver function. The second node is configured to receive data on said optical fiber from said first and second line directions. Further, the second node is adapted to synchronize received data from said first and second line directions by delaying the data signals seeing the shortest delay, by a delay device.