Arris Enterprises LLC

At+t Corp.

Gregory J Cyr

John Ulm

Venkatesh Gururaj Mutalik

Thomas J Cloonan

Jeffrey Joseph Howe

Steven John Krapp

Mark A Pashan

Lawrence J Nociolo

Kurt Arnold Hedlund

Owen McNally

Albert Kai-sun Wong

Owen Mcnally

Methods and systems that reduce power usage in a CATV network. Power usage may be reduced by temporally adjusting the power output of amplifiers in the network. The power output of one or more amplifiers in the network are preferably adjusted based on patterns of temporal usage of the network.

Systems and methods for power savings in HFC amplifiers

Particular embodiments provide an N+0 sharing scheme for networks. The N+0 sharing scheme includes no dedicated spare among a group of active elements. Each active element may provide service to a medium, which may be associated with a medium. When a failure to one of the active elements occurs, at least one of the working active elements takes the workload of the failed active element. The cost of N+0 sharing is a reduced per medium (e.g., service group) capacity during a failure. That is, some service groups may receive less bandwidth from the active element that is used in the sharing scheme to compensate for the failure. However, this may be preferable to service operators compared to the additional cost of including a spare for the group of active elements, or the complete loss of service that occurs when a failure occurs without a failure recovery scheme.

N+0 redundancy in a network access system

Apparatus and methods can provide for reduced crosstalk in a conductive body connector. In some implementations, such apparatus and methods can include applying or embedding a selectively resistive material between channel elements to reduce return ground current sharing. The selectively resistive material can operate to increase the effective resistance between channels and thereby reduce crosstalk.

Reduced crosstalk in a multi-channel conductive body connector

First multiplexers have inputs connected to communication channels which carry inbound digital words. The output of each of the first multiplexers is coupled to a control buffer that has its output connected to a data input of a random access memory (RAM) of M columns and N rows. The RAM is capable of concurrently storing a digital word entered on each of its data inputs during each clock cycle. During a clock cycle each control buffer: (a) stores an associated inbound word received from a first multiplexer, (b) transmits the associated inbound word to a respective input of the RAM, or (c) does both (a) and (b). The control buffer operates to cause each column in the RAM to be completely filled with inbound words before another column in the RAM receives any inbound words. The packing of the RAM to avoid empty or 'fill' cells makes the reading or withdrawing of information straightforward.

Digital data concentrator

A high capacity packet switch is implemented using an expansion module that divides an incoming packet cell into a plurality of segments and supplies the segments, based on their sequential order, to respective ones of a plurality of concentrator units contained in the expansion module. Each concentrator unit includes a plurality of concentrator logic units and one of those logic units accepts a segment for storage based on routing information contained in the packet cell. The stored segments forming a packet cell are thereafter unloaded and recombined in proper sequence for routing to a packet switch module, which then forwards the packet cell toward its destination.

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Winfield, IL, United States of America

Gregory J Cyr