The present invention relates to methods and systems for minimizing alien crosstalk between connectors. Specifically, the methods and systems relate to isolation and compensation techniques for minimizing alien crosstalk between connectors for use with high-speed data cabling. A frame can be configured to receive a number of connectors. Shield structures may be positioned to isolate at least a subset of the connectors from one another. The connectors can be positioned to move at least a subset of the connectors away from alignment with a common plane. A signal compensator may be configured to adjust a data signal to compensate for alien crosstalk. The connectors are configured to efficiently and accurately propagate high-speed data signals by, among other functions, minimizing alien crosstalk.

A wired communication systems, a subscriber device and a method, and more specifically related to initialization and/or update of communication parameters used for communication through the wired communication systems. An access node comprises at least one processor and memory storing instructions that when executed by the at least one processor cause a local transceiver of the access node to transmit signaling data via a subscriber line to a remote transceiver, the signaling data identifying particular symbol positions within a sequence of symbols transmitted over the subscriber line during show-time as being suitable for characterizing a direct communication channel between the local transceiver and the remote transceiver.

Embodiments of the present invention provide systems, devices and methods for improving the performance and range of wireless communication systems. In various embodiments, a wireless and wireline architecture is implemented to allow a channel to more efficiently span physical barriers within the channel. The wireline portion of the channel may leverage pre-existing copper deployed within a building by interfacing copper with north and south transceiver nodes that allow the signal to propagate through a physical structure on the wire itself resulting in significantly less signal degradation compared to the signal having to traverse the physical structure wirelessly.

A method and circuit for providing adaptive suppression of signal crosstalk appearing on a common return wire in a signal cable connected to a device. The method steps comprise connecting an adjustable negative resistance circuit between the common wire terminal and a common point at the device; determining an auxiliary current (Iaux) such that is flowing through at least one of the cable wires and returns through the common wire; sensing the voltage between selected at least one of the cable wire terminals at the device port and the common point, while ensuring that this level is substantially affected by Iaux; measuring a level of the sensed voltage according to a predefined level measurement procedure; and adjusting the negative resistance so as to nullify said voltage level, thereby effectively cancelling the common wire ohmic resistance.

A method and circuit for providing adaptive suppression of signal crosstalk appearing on a common return wire in a signal cable connected to a device. The method steps comprise connecting an adjustable negative resistance circuit between the common wire terminal and a common point at the device; determining an auxiliary current (Iaux) such that is flowing through at least one of the cable wires and returns through the common wire; sensing the voltage between selected at least one of the cable wire terminals at the device port and the common point, while ensuring that this level is substantially affected by Iaux; measuring a level of the sensed voltage according to a predefined level measurement procedure; and adjusting the negative resistance so as to nullify said voltage level, thereby effectively cancelling the common wire ohmic resistance.

The present invention relates to a communication controller (131; 132) and method for controlling communications between an access node (101; 102) and a plurality of remote communication units (211; 212) coupled to the access node via at least one wired transmission medium (20; 40). At least one communication unit (111, 211; 112, 212) of the access node and of the plurality of remote communication units is configured to operate in full-duplex mode according to a first full-duplex communication profile (OP1) when using a first subset of transmission resources (TSSET1; TONESET1) selected from a whole set of transmission resources available for communication over the at least one transmission medium, and according to a second full-duplex communication profile (OP2) when using a second non-overlapping subset of transmission resources (TSSET2; TONESET2) selected from the whole set of transmission resources. The first full-duplex communication profile includes first downstream and upstream transmit power profiles (PSDDS1, PSDUS1) to achieve first aggregate downstream and upstream data rates (DSMAX1, USMIN1; DSMAX2, USMIN2) over the at least one transmission medium, and the second full-duplex communication profile includes second downstream and upstream transmit power profiles (PSDDS2, PSDUS2) to achieve second aggregate downstream and upstream data rates (USMAX1, DSMIN1; USMAX2, DSMIN2) over the at least one transmission medium distinct from the respective first aggregate downstream and upstream data rates. The present invention also relates to a so-configured full-duplex communication unit.

The present invention relates to a communication controller (131; 132) and method for controlling communications between an access node (101; 102) and a plurality of remote communication units (211; 212) coupled to the access node via at least one wired transmission medium (20; 40). At least one communication unit (111, 211; 112, 212) of the access node and of the plurality of remote communication units is configured to operate in full-duplex mode according to a first full-duplex communication profile (OP1) when using a first subset of transmission resources (TSSET1; TONESET1) selected from a whole set of transmission resources available for communication over the at least one transmission medium, and according to a second full-duplex communication profile (OP2) when using a second non-overlapping subset of transmission resources (TSSET2; TONESET2) selected from the whole set of transmission resources. The first full-duplex communication profile includes first downstream and upstream transmit power profiles (PSDDS1, PSDUS1) to achieve first aggregate downstream and upstream data rates (DSMAX1, USMIN1; DSMAX2, USMIN2) over the at least one transmission medium, and the second full-duplex communication profile includes second downstream and upstream transmit power profiles (PSDDS2, PSDUS2) to achieve second aggregate downstream and upstream data rates (USMAX1, DSMIN1; USMAX2, DSMIN2) over the at least one transmission medium distinct from the respective first aggregate downstream and upstream data rates. The present invention also relates to a so-configured full-duplex communication unit.

A transmitter includes output drivers respectively corresponding to data transmission lines, driver control logic configured to control the output drivers in response to data pattern information, and a data pattern detector configured to detect a data pattern in relation to at least two data transmission lines among the data transmission lines over a predetermined period of time, and output the data pattern information corresponding to the data pattern.

A transmitter includes output drivers respectively corresponding to data transmission lines, driver control logic configured to control the output drivers in response to data pattern information, and a data pattern detector configured to detect a data pattern in relation to at least two data transmission lines among the data transmission lines over a predetermined period of time, and output the data pattern information corresponding to the data pattern.

A method for leakage detection in an aeronautical band for a high split HFC network includes: providing a vehicle borne leak detector configured to perform substantially simultaneous upstream and downstream leakage detection; and while traversing a hub containing any quantity of high split nodes, performing a substantially simultaneous upstream leakage detection and a downstream leakage detection at about a same frequency. A system for leakage detection in an aeronautical band for a high split HFC network is also described.