Eci Telecom Ltd.

Ilan Halevi

David Harris

Eitan Yehuda

Eli Korall

Eyal Shaked

Mordechay Tuby

Tsvi Sivan

A method, a device and a system for delay equalizing of fragment data streams transmitted via N individual paths and forming a virtual data stream, wherein the virtual data stream and each of said fragment data streams consisting of data frames; the method including gradual minimization of differential delay of the fragment data streams at one or more intermediate points between a source point and a destination point of the virtual data stream. The gradual minimization of the differential delay can be provided by devices () respectively fitted at the intermediate points; each of the devices comprises a control unit () and N memory buffer blocks (), each associated with a respective individual path.

Method, device and system for delay equalizing in high rate data streams

There is proposed a method and a module for real time control of power per optical channel in a multi-channel optical communication line formed by a group of optical elements connected in a chain by fiber spans. The group of elements comprises one or more optical fiber amplifiers (OFA); each of the spans is characterized by its span loss, while each of the OFA is characterized by its gain and its designed output power per channel. The method comprises steps of calculating an expected total input power value (EIP) for a particular optical amplifier (OFA) in the line, measuring a real total input power (MIP) at the particular optical amplifier, and comparing the values. If a difference between the EIP and the MIP at the OFA exceeds a predetermined value, the method (and the module) ensures adjusting the gain of the OFA to maintain its output power per channel constant.

Method and system for span optical power control

There is proposed a technique for counting channels at a node of a multi-channel optical network, where the node is connected to a following node and a preceding node by an optical communication line carrying a plurality of information optical channels. The technique comprises exchanging of information structures between the nodes, such that each of the information structures specifies particular optical information channels which are currently in use at a predetermined network section or node.

Method and system for channel count and power control in optical networks

A method for preventing errors in transmission of a telecommunication signal via a network domain, involves transmitting the signal as a succession of binary data frames via two border points in the network domain, and each of the frames comprises a parity array of bits assigned for parity check and a temporary use array of bits assigned to serve at least one temporary data channel between the two border points. The method comprises a) transmitting, via the temporary data channel, additional information between the two border points with performing operation of parity compensation at each of the border points, in the parity array of each of the binary frames, b) obtaining an external command to cease transmission of the additional information via the temporary data channel, and c) executing the external command with performing a procedure of the temporary channels compensation at the border points.

Growing community of inventors

Petach Tikva, Israel

Ilan Halevi