Patent application number | Description | Published |
20080242141 | Wire Containment Cap - A wire containment cap has twisted pair slots for routing twisted wire pairs through the wire containment cap. The twisted pair slots are provided with funnel-shaped entrances to assist in routing the twisted wire pairs from a rear end of the wire containment cap toward wire slots of the wire containment cap. The wire containment cap may be provided in shielded or unshielded versions, and is adapted for use with a communication jack assembly. | 10-02-2008 |
20080242156 | Electrical connector with improved crosstalk compensation - An electrical connector with improved crosstalk compensation is disclosed. By including at least one coupling with a different frequency dependency than other couplings in the connector, crosstalk compensation performance is improved over a greater frequency range. The different frequency dependency may, for example, be used to compensate for phase shifts caused by distances between compensation circuitry and the plug/jack interface. Embodiments for decreasing these distances are also disclosed. | 10-02-2008 |
20080247113 | Protection patch panel - An access control system dissipates voltage transients while allowing access control equipment to operate normally. The access control system utilizes an isolation patch panel which is provided with circuitry to prevent voltage transients from damaging access control equipment, while also enabling the access control equipment to be wired with standard Ethernet cabling. | 10-09-2008 |
20090068878 | Wire containment cap - A wire containment cap includes a first side having a plurality of retainers for retaining wires, and a second side opposite the first side. Two sidewalls extend between the first side and the second side, and a support rib extends between the two sidewalls. The support rib includes two pair separators for separating wire pairs. In one embodiment, a plurality of sloped pair splitters is located between two of the retainers and includes a sharp point for cutting through insulation material on a pair of bonded wires. A communication jack assembly including a front portion and the wire containment cap is also described. | 03-12-2009 |
20090075523 | Methods and Apparatus for Reducing Crosstalk in Electrical Connectors - A communication jack having crosstalk compensation features for overall crosstalk interference reduction is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth. | 03-19-2009 |
20090081888 | Powered patch panel - A powered communications patch panel is adapted to power network devices connected to the communications patch panel. Power is supplied to the network devices by the powered communications patch panel over the communication cabling. The powered communications patch panel may be provided with a management port to allow remote management of the patch panel via a network connection. Multiple management ports may be provided, allowing patch panels to be connected to one another in a daisy-chain configuration. | 03-26-2009 |
20090130914 | Electrical Connector with Improved Crosstalk Compensation - An electrical connector with improved crosstalk compensation is disclosed. By including at least one coupling with a different frequency dependency than other couplings in the connector, crosstalk compensation performance is improved over a greater frequency range. The different frequency dependency may, for example, be used to compensate for phase shifts caused by distances between compensation circuitry and the plug/jack interface. Embodiments for decreasing these distances are also disclosed. | 05-21-2009 |
20090163084 | Method and System for Reducing Common Mode Signal Generation Within a Plug/Jack Connection - A communication connector is described that includes a plug and a jack, into which the plug is inserted. The plug terminates a length of twisted pair cable. The jack includes a sled to support contacts for connecting to wires within the cable, a rigid circuit board that connects to the contacts, and a flex board that contacts the plug interface contacts. The jack also includes circuitry to compensate for crosstalk between wire pairs of the cable by adding capacitance values within the sled, rigid circuit board and/or flex board between traces carrying signals from the wire pairs so that crosstalk caused by the plug between wire pairs that have signals in phase cancels with crosstalk caused by the plug between signals out of phase, and so that the capacitance values added between each trace are about equal. The compensation is performed to reduce differential to common mode signal conversion. | 06-25-2009 |
20090198812 | Systems and methods for managing a network - A system for managing and documenting a local area communications network is provided which deploys power sourcing equipment and powered devices by the use of active electronic modules, having an Ethernet controller and Power over Ethernet forwarding capabilities, as integral, managed components within the cable plant, to enhance management, documentation, security and emergency 911 aspects of the network as well as extending the physical reach of the network. | 08-06-2009 |
20090233486 | Plug/Jack System Having PCB with Lattice Network - A jack is provided that has compensation and crosstalk zones. At least one of the zones employs a lattice network that couples conductors in the zone to reduce the net crosstalk in the plug/jack system. The lattice network has a frequency response slope that is different from the frequency response slope of a first-order coupling or of a series LC circuit coupling. A variety of lattice networks are provided. | 09-17-2009 |
20090263980 | Powered patch panel - A powered communications patch panel is adapted to power network devices connected to the communications patch panel. Power is supplied to the network devices by the powered communications patch panel over the communication cabling. The powered communications patch panel may be provided with a management port to allow remote management of the patch panel via a network connection. Multiple management ports may be provided, allowing patch panels to be connected to one another in a daisy-chain configuration. | 10-22-2009 |
20090294146 | Communication cable with improved crosstalk attenuation - The present invention relates to a barrier tape used as part of a communication cable to improve crosstalk attenuation. The barrier tape is provided with one or more barrier layers of discontinuous conductive segments. Conductive segments of one barrier layer are preferably sized and shaped to overlie gaps between conductive segments of another barrier layer. | 12-03-2009 |
20100029104 | Pluggable cable connector - A pair manager for use in securing a twin-axial cable to a printed circuit board is described. The pair manager comprises a generally block-shaped portion containing a pair of channels. The channels extend from the front face to the rear face of the block-shaped portion. An integral flange and a pair of integral fingers extend perpendicularly from the front face of the block-shaped portion. The flange extends generally from the center of the front face and the fingers extend from opposite edges of the front face. The fingers and flange function as a partial shield cavity around each pair of conductors. This design helps to maintain better impedance matching when connecting twin-axial cables to a printed circuit board. | 02-04-2010 |
20100048055 | Wire Containment Cap - A wire containment cap has twisted pair slots for routing twisted wire pairs through the wire containment cap. The twisted pair slots are provided with funnel-shaped entrances to assist in routing the twisted wire pairs from a rear end of the wire containment cap toward wire slots of the wire containment cap. The wire containment cap may be provided in shielded or unshielded versions, and is adapted for use with a communication jack assembly. | 02-25-2010 |
20100101826 | Communication Cable with Variable Lay Length - Communication cables are provided in which a core lay length of the cable varies along the cable length. The cable may be provided with different segments that have different core lay lengths. It is desirable for neighboring core lay lengths in a cable to differ by a factor of two, to enable a reduction in power-sum alien near-end crosstalk (PSANEXT) when two cables are installed alongside one another. Segments of the cable having different core lay lengths may be spaced periodically along the length of the cable, and the periodicity of the spacing may be altered by a jitter distance. The introduction of jitter into the periodicity of the spacing of the segments increases the likelihood that a beneficial placement of core lay lengths will occur when two or more cables are installed alongside one another. | 04-29-2010 |
20100116521 | Communication Cable with Improved Crosstalk Attenuation - A communications cable is provided with a matrix tape that attenuates alien crosstalk when cables run near one another. The matrix tape is provided with conductive segments. The conductive segments are preferably provided on two layers of the matrix tape. In one embodiment, the conductive segments are attached to a film with an adhesive. A barrier tape is preferably provided between the cable core and the matrix tape. | 05-13-2010 |
20100149709 | POWER OVER ETHERNET TRANSIENT VOLTAGE SUPPRESSION PATCH PANEL - A device for providing transient voltage suppression on a Power over Ethernet system is provided. The device includes a transient voltage suppression module. The transient voltage suppression module includes a circuit module, which includes a circuit board and input and output connectors. One or more transient voltage suppression modules may be mounted to a frame to form a transient voltage suppression patch panel, which, in turn, may be mounted to a rack for use in a telecommunications room. The circuit board combines a frequency-variable impedance connected between conductors in a pair and a voltage-variable impedance connected to the frequency-variable impedance, where the voltage-variable impedance is also connected to a chassis and/or an electrical ground. | 06-17-2010 |
20100206608 | COMMUNICATION CHANNELS WITH CROSSTALK-MITIGATING MATERIAL - Alien crosstalk in communication channels is decreased with the use of crosstalk-mitigating materials. Electrical communication cables may be provided with crosstalk-mitigating materials that surround twisted pairs in the cables. According to one embodiment, the crosstalk-mitigating material is an electrically resistive material having electrically conductive areas placed thereon. Such a material mitigates the effects of electrical and magnetic fields that would normally lead to alien crosstalk between communication channels. | 08-19-2010 |
20100224389 | Method and Apparatus For Manufacturing Mosaic Tape For Use In Communication Cable - Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape. | 09-09-2010 |
20100236813 | Alien Crosstalk Suppression with Enhanced Patch Cord - Systems and methods for decreasing alien crosstalk use enhanced patch cords for introducing additional attenuation. The enhanced patch cords are preferably shielded to reduce alien crosstalk down their lengths and also attenuate signals passing therethrough to a greater extent than standard communication patch cords. The interaction of two enhanced patch cords results in two suppression steps for alien crosstalk and only one suppression step for intended signal passing through a communication cable. | 09-23-2010 |
20100267272 | Wire Containment Cap - A wire containment cap includes a first side having a plurality of retainers for retaining wires, and a second side opposite the first side. Two sidewalls extend between the first side and the second side, and a support rib extends between the two sidewalls. The support rib includes two pair separators for separating wire pairs. In one embodiment, a plurality of sloped pair splitters is located between two of the retainers and includes a sharp point for cutting through insulation material on a pair of bonded wires. A communication jack assembly including a front portion and the wire containment cap is also described. | 10-21-2010 |
20100302754 | ACTIVE PATCH PANEL - An active patch panel uses small form factor plus (SFP+) connectivity with a plurality of channels extending between first and second faces of the panel. The channels connect ports on the opposing faces of the panel and are provided with additional electronic elements, such as an equalizer, a clock data recovery element, and a pre-emphasis element. A controller can be connected to the plurality of channels to provide instructions for simultaneous equalization and pre-emphasis of a plurality of cable assemblies in the same channel. | 12-02-2010 |
20100304577 | Powered Patch Panel - A powered communications patch panel is adapted to power network devices connected to the communications patch panel. Power is supplied to the network devices by the powered communications patch panel over the communication cabling. The powered communications patch panel may be provided with a management port to allow remote management of the patch panel via a network connection. Multiple management ports may be provided, allowing patch panels to be connected to one another in a daisy-chain configuration. | 12-02-2010 |
20110034067 | Wire Containment Cap - A wire containment cap has twisted pair slots for routing twisted wire pairs through the wire containment cap. The twisted pair slots are provided with funnel-shaped entrances to assist in routing the twisted wire pairs from a rear end of the wire containment cap toward wire slots of the wire containment cap. The wire containment cap may be provided in shielded or unshielded versions, and is adapted for use with a communication jack assembly. | 02-10-2011 |
20110041331 | Method for Compensating For Crosstalk - An apparatus and method for crosstalk compensation in a jack of a modular communications connector includes a flexible printed circuit board connected to jack contacts and to connections to a network cable. The flexible printed circuit board includes conductive traces arranged as one or more couplings to provide crosstalk compensation. | 02-24-2011 |
20110061924 | Communication Channels with Suppression Cores - Alien crosstalk suppression cores are used to decrease alien crosstalk in communications channels. Electrical communication cables may be provided with alien crosstalk suppression cores. The alien crosstalk suppression cores, which may be ferrite suppression cores, are placed separately on some or all of the twisted pairs within a communication cable. The alien crosstalk suppression cores reduce ANEXT and AFEXT in high-frequency communications when communication cables are installed near one another. Alien crosstalk suppression cores may also be incorporated into other communication channel components, such as on a PCB within a communication jack. | 03-17-2011 |
20110086549 | Methods and Apparatus for Reducing Crosstalk in Electrical Connectors - A communication jack having crosstalk compensation features for overall crosstalk interference reduction is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth. | 04-14-2011 |
20110102959 | Protection Patch Panel - An access control system dissipates voltage transients while allowing access control equipment to operate normally. The access control system utilizes an isolation patch panel which is provided with circuitry to prevent voltage transients from damaging access control equipment, while also enabling the access control equipment to be wired with standard Ethernet cabling. | 05-05-2011 |
20110111630 | Plug/Jack System Having PCB with Lattice Network - A jack is provided that has compensation and crosstalk zones. At least one of the zones employs a lattice network that couples conductors in the zone to reduce the net crosstalk in the plug/jack system. The lattice network has a frequency response slope that is different from the frequency response slope of a first-order coupling or of a series LC circuit coupling. A variety of lattice networks are provided. | 05-12-2011 |
20110237136 | Method and System For Reducing Internal Crosstalk and Common Mode Signal Generation Within a Plug/Jack Combination - A communication connector is described that includes a plug and a jack, into which the plug is inserted. The plug terminates a length of twisted pair cable. The jack includes a sled to support contacts for connecting to wires within the cable, a rigid circuit board that connects to the contacts, and a flex board that contacts the plug interface contacts. The jack also includes circuitry to compensate for crosstalk between wire pairs of the cable by adding capacitance values within the sled, rigid circuit board and/or flex board between traces carrying signals from the wire pairs so that crosstalk caused by the plug between wire pairs that have signals in phase cancels with crosstalk caused by the plug between signals out of phase, and so that the capacitance values added between each trace are about equal. The compensation is performed to reduce differential to common mode signal conversion. | 09-29-2011 |
20120040570 | Wire Containment Cap - A wire containment cap includes a first side having a plurality of retainers for retaining wires, and a second side opposite the first side. Two sidewalls extend between the first side and the second side, and a support rib extends between the two sidewalls. The support rib includes two pair separators for separating wire pairs. In one embodiment, a plurality of sloped pair splitters is located between two of the retainers and includes a sharp point for cutting through insulation material on a pair of bonded wires. A communication jack assembly including a front portion and the wire containment cap is also described. | 02-16-2012 |
20120045942 | Pluggable Cable Connector - A pair manager for use in securing a twin-axial cable to a printed circuit board is described. The pair manager comprises a generally block-shaped portion containing a pair of channels. The channels extend from the front face to the rear face of the block-shaped portion. An integral flange and a pair of integral fingers extend perpendicularly from the front face of the block-shaped portion. The flange extends generally from the center of the front face and the fingers extend from opposite edges of the front face. The fingers and flange function as a partial shield cavity around each pair of conductors. This design helps to maintain better impedance matching when connecting twin-axial cables to a printed circuit board. | 02-23-2012 |
20120068830 | Physical Layer Management Using RFID Modules and Common Mode Signaling - An intelligent network patch field management system is provided that includes active electronic hardware, firmware, mechanical assemblies, cables, and software that guide, monitor, and report on the process of connecting and disconnecting patch cords plugs in an interconnect or cross-connect patching environment. RFID tag integrated chips are used in some embodiments of the system to allow for detection of patch cord insertion and removal at switch ports. RFID tags may also be used to detect users and control access to the network based on the users' levels of authorization. Network access can also be controlled at the outlet jack level. The system is capable of monitoring patch cord connections to detect insertions or removals of patch cords or plugs. In addition, the system can map entire networks. | 03-22-2012 |
20120098664 | RFID System - The present invention provides an automated system for asset tracking and management and utilizes near field Radio Frequency IDentification (RFID) technology. RFID tags are attached to the assets, and RFID antennas (and corresponding readers) are strategically located in close proximity to read the tags. As applied to a rack or cabinet, near-field antennas are mounted along one of the mounting posts at each rack unit location such that when a piece of equipment (rack mounted or rail mounted) is installed at a particular rack unit space, the tag will be read and registered in an RFID management system. A magnetic field shaping arrangement ensures that crosstalk between adjacent rack positions is prevented. Ferrite elements are used to control the magnetic field. | 04-26-2012 |
20120100744 | Communication Plug with Improved Crosstalk - A communication plug having a plug body and a plurality of contact pairs at least partially within the plug body, the contact pairs including an inherent asymmetric coupling between individual contacts of one of the contact pairs and other individual contacts of another of the contact pairs. Second asymmetric coupling elements are connected between the individual contacts of one of the contact pairs and the other individual contacts of another of the contact pairs. The second asymmetric coupling elements, when combined with the inherent asymmetric coupling, provide a balanced symmetric coupling between the individual contacts of one of the contact pairs and the other individual contacts of another of the contact pairs. | 04-26-2012 |
20120145429 | Twinax Cable Design for Improved Electrical Performance - A twinax cable is described. The twinax cable has at least one twinax wire pair with a first shield tape wrapped around it and then surrounded by a second shield tape wrapped around the twinax wire pair and the first shield tape. The shield tapes are wrapped such that the metallic sides of the tape face and make contact with each other. | 06-14-2012 |
20120152588 | Shielded Wireway Systems - Certain embodiments of the present invention provide a duct for a shielded wireway system. The duct includes a bottom wall, two sidewalls extending from the bottom wall, and a plurality of fingers extending from each of the sidewalls. Adjacent fingers are connected by at least one bridging component. The bottom wall, the sidewalls, and a portion of the fingers, including the bridging component, are shielded. | 06-21-2012 |
20120156932 | Method and System for Reducing Internal Crosstalk and Common Mode Signal Generation Within a Plug/Jack Combination - A communication connector is described that includes a plug and a jack, into which the plug is inserted. The plug terminates a length of twisted pair cable. The jack includes a sled to support contacts for connecting to wires within the cable, a rigid circuit board that connects to the contacts, and a flex board that contacts the plug interface contacts. The jack also includes circuitry to compensate for crosstalk between wire pairs of the cable by adding capacitance values within the sled, rigid circuit board and/or flex board between traces carrying signals from the wire pairs so that crosstalk caused by the plug between wire pairs that have signals in phase cancels with crosstalk caused by the plug between signals out of phase, and so that the capacitance values added between each trace are about equal. The compensation is performed to reduce differential to common mode signal conversion. | 06-21-2012 |
20120190218 | Pluggable Cable Connector - A pair manager for use in securing a twin-axial cable to a printed circuit board is described. The pair manager comprises a generally block-shaped portion containing a pair of channels. The channels extend from the front face to the rear face of the block-shaped portion. An integral flange and a pair of integral fingers extend perpendicularly from the front face of the block-shaped portion. The flange extends generally from the center of the front face and the fingers extend from opposite edges of the front face. The fingers and flange function as a partial shield cavity around each pair of conductors. This design helps to maintain better impedance matching when connecting twin-axial cables to a printed circuit board. | 07-26-2012 |
20120222883 | Communication Cable with Improved Crosstalk Attenuation - A barrier tape used as part of a communication cable is described. The barrier tape is provided with one or more barrier layers of discontinuous conductive segments. Conductive segments of one barrier layer are preferably sized and shaped to overlie gaps between conductive segments of another barrier layer. | 09-06-2012 |
20120267142 | Communication Cable with Improved Crosstalk Attenuation - A communication cable with a barrier tape to improve crosstalk attenuation. The barrier tape is provided with one or more barrier layers of discontinuous conductive segments. | 10-25-2012 |
20120270449 | Wire Containment Cap - A wire containment cap includes a first side having a plurality of retainers for retaining wires, and a second side opposite the first side. Two sidewalls extend between the first side and the second side, and a support rib extends between the two sidewalls. The support rib includes two pair separators for separating wire pairs. In one embodiment, a plurality of sloped pair splitters is located between two of the retainers and includes a sharp point for cutting through insulation material on a pair of bonded wires. A communication jack assembly including a front portion and the wire containment cap is also described. | 10-25-2012 |
20120273267 | Alien Crosstalk Suppression with Enhanced Patch Cord - Systems and methods for decreasing alien crosstalk use enhanced patch cords for introducing additional attenuation. The enhanced patch cords are preferably shielded to reduce alien crosstalk down their lengths and also attenuate signals passing therethrough to a greater extent than standard communication patch cords. The interaction of two enhanced patch cords results in two suppression steps for alien crosstalk and only one suppression step for intended signal passing through a communication cable. | 11-01-2012 |
20120318558 | Communication Cable with Variable Lay Length - Communication cables are provided in which a core lay length of the cable varies along the cable length. The cable may be provided with different segments that have different core lay lengths. It is desirable for neighboring core lay lengths in a cable to differ by a factor of two, to enable a reduction in power-sum alien near-end crosstalk (PSANEXT) when two cables are installed alongside one another. Segments of the cable having different core lay lengths may be spaced periodically along the length of the cable, and the periodicity of the spacing may be altered by a jitter distance. The introduction of jitter into the periodicity of the spacing of the segments increases the likelihood that a beneficial placement of core lay lengths will occur when two or more cables are installed alongside one another. | 12-20-2012 |
20120329326 | Methods and Apparatus for Reducing Crosstalk in Electrical Connectors - A communication jack having crosstalk compensation features for overall crosstalk interference reduction is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth. | 12-27-2012 |
20130077232 | THERMAL MANAGEMENT INFRASTRUCTURE FOR IT EQUIPMENT IN A CABINET - The present invention attempts to reduce the thermal resistance with the use of heat-transfer devices (e.g., vapor chambers) placed directly on the heat-generating components in IT equipment and the integration of a cold plate within the cabinet. In some embodiments, the present invention is a thermal management system comprising a cabinet-side thermal management system and a server-side thermal management system using moveable thermal components. | 03-28-2013 |
20130090011 | Backward Compatible Connectivity for High Data Rate Applications - The present invention provides a communication jack for connecting to one of a first plug and a second plug. The jack includes a housing, plug interface contacts, and coupling circuitry. The plug interface contacts are at least partially within said housing and include a plurality of contact pairs having at least a first contact pair and a second contact pair. The coupling circuitry is configured for engaging said first contact pair and said second contact pair when said first plug is inserted into said housing. The coupling circuitry is configured for disengaging from said first contact pair and said second contact pair when said second plug is inserted into said housing. | 04-11-2013 |
20130118772 | Communication Cable with Improved Crosstalk Attenuation - A matrix tape with conductive segments. The conductive segments are preferably provided on two layers of the matrix tape. The conductive segments can be attached to a film with an adhesive. A barrier tape is preferably applied between the cable core and the matrix tape. | 05-16-2013 |
20130130560 | Compensation Network Using an Orthogonal Compensation Network - In one embodiment, the present invention is a communication connector, comprising a compensation circuit for providing a compensating signal to approximately cancel an offending signal over a range of frequency, the compensation circuit including a capacitive coupling with a first magnitude growing at a first rate over the range of frequency and a mutual inductive coupling with a second magnitude growing at a second rate over the range of frequency, the second rate being greater than the first rate (e.g., the second rate approximately double the first rate). | 05-23-2013 |
20130187460 | Active Patch Panel - An active patch panel uses small form factor plus (SFP+) connectivity with a plurality of channels extending between first and second faces of the panel. The channels connect ports on the opposing faces of the panel and are provided with additional electronic elements, such as an equalizer, a clock data recovery element, and a pre-emphasis element. A controller can be connected to the plurality of channels to provide instructions for simultaneous equalization and pre-emphasis of a plurality of cable assemblies in the same channel. | 07-25-2013 |
20130217273 | Communication Channels with Suppression Cores - Alien crosstalk suppression cores are used to decrease alien crosstalk in communications channels. Electrical communication cables may be provided with alien crosstalk suppression cores. The alien crosstalk suppression cores, which may be ferrite suppression cores, are placed separately on some or all of the twisted pairs within a communication cable. The alien crosstalk suppression cores reduce ANEXT and AFEXT in high-frequency communications when communication cables are installed near one another. Alien crosstalk suppression cores may also be incorporated into other communication channel components, such as on a PCB within a communication jack. | 08-22-2013 |
20130277090 | Communication Cable with Improved Electrical Characteristics - A communication cable with a plurality of twisted pairs of conductors and a matrix tape having conductive segments separated by gaps. In some embodiments, an insulating layer is placed between the twisted pairs of conductors and the matrix tape. In some embodiments, the insulating layer is an embossed or perforated film. | 10-24-2013 |
20130320079 | Anti-Counterfeiting Methods - The present invention relates to the field of product authentication and anti-counterfeiting techniques, and more specifically, to techniques employing RFID tags and encryption technologies. Embodiments of the present invention illustrate the use of RFID tags having encrypted information stored therein which upon decryption by a down-stream entity or an end user can help determine the authenticity of a product. Furthermore, the embodiments disclosed herein illustrate various examples supply chains and private key management. | 12-05-2013 |
20140027036 | Methods of Manufacturing a Communication Cable - Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape. | 01-30-2014 |
20140038461 | Methods and Apparatus for Reducing Crosstalk in Electrical Connectors - A communication jack having crosstalk compensation features for overall crosstalk interference reduction is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth. | 02-06-2014 |
20140091138 | RFID System - The present invention provides an automated system for asset tracking and management and utilizes near field Radio Frequency IDentification (RFID) technology. RFID tags are attached to the assets via a flexible mounting system, and RFID antennas (and corresponding readers) are strategically located in close proximity to read the tags. As applied to a rack or cabinet, near-field antennas are mounted along one of the mounting posts at each rack unit location such that when a piece of equipment (rack mounted or rail mounted) is installed at a particular rack unit space, the tag will be read and registered in an RFID management system. A magnetic field shaping arrangement ensures that crosstalk between adjacent rack positions is prevented. Ferrite elements are used to control the magnetic field. | 04-03-2014 |
20140187077 | COMMUNICATION PLUG WITH IMPROVED CROSSTALK - A communication plug having a plug body and a plurality of contact pairs at least partially within the plug body, the contact pairs including an inherent asymmetric coupling between individual contacts of one of the contact pairs and other individual contacts of another of the contact pairs. Second asymmetric coupling elements are connected between the individual contacts of one of the contact pairs and the other individual contacts of another of the contact pairs. The second asymmetric coupling elements, when combined with the inherent asymmetric coupling, provide a balanced symmetric coupling between the individual contacts of one of the contact pairs and the other individual contacts of another of the contact pairs. | 07-03-2014 |
20140190734 | SHIELDED WIREWAY SYSTEMS - Certain embodiments of the present invention provide a duct for a shielded wireway system. The duct includes a bottom wall, two sidewalls extending from the bottom wall, and a plurality of fingers extending from each of the sidewalls. Adjacent fingers are connected by at least one bridging component. The bottom wall, the sidewalls, and a portion of the fingers, including the bridging component, are shielded. | 07-10-2014 |
20140256182 | COMPENSATION NETWORKS AND COMMUNICATION CONNECTORS USING SAID COMPENSATION NETWORKS - The present invention generally relates to the field of network communication, and more specifically to networks for crosstalk reduction/compensation and communication connectors which employ such networks. In some embodiments, the present invention employs an orthogonal network implemented within a communication jack to compensate for crosstalk which occurs within a communication plug and at the plug/jack interface. | 09-11-2014 |
20140273660 | CONNECTORS AND SYSTEMS HAVING IMPROVED CROSSTALK PERFORMANCE - Embodiments of the present invention generally relate to the field of electronic communication, and more particularly, to techniques used to compensate for/reduce/or otherwise manipulate crosstalk in communication connectors, and apparatuses and methods which employ such techniques. In an embodiment, the present invention is a communication connector that includes a plurality of signal pairs including at least a first pair and a second pair, a first compensation stage between the first pair and the second pair, and an orthogonal compensation network between the first pair and the second pair. The orthogonal compensation network can be time delayed from the first compensation stage. | 09-18-2014 |
20140374479 | RFID System - The present invention provides an automated system for asset tracking and management and utilizes near field Radio Frequency IDentification (RFID) technology. RFID tags are attached to the assets, and RFID antennas (and corresponding readers) are strategically located in close proximity to read the tags. As applied to a rack or cabinet, near-field antennas are mounted along one of the mounting posts at each rack unit location such that when a piece of equipment (rack mounted or rail mounted) is installed at a particular rack unit space, the tag will be read and registered in an RFID management system. A magnetic field shaping arrangement ensures that crosstalk between adjacent rack positions is prevented. Ferrite elements are used to control the magnetic field. | 12-25-2014 |
20150024613 | Method for Reducing Crosstalk in Electrical Connectors - An apparatus and method for crosstalk compensation in a jack of a modular communications connector includes a flexible printed circuit board connected to jack contacts and to connections to a network cable. The flexible printed circuit board includes conductive traces arranged as one or more couplings to provide crosstalk compensation. | 01-22-2015 |
20150056824 | COMMUNICATION CONNECTOR - Embodiments of the present invention are generally related to communication connectors, and more specifically, to communication connectors such as jacks which are compatible with more than one style of a plug. In one embodiment, the electrical and mechanical design of a jack in accordance with the present invention may extend the usable bandwidth beyond the IEC 60603-7-71 requirement of 1000 MHz to support potential future applications such as, but not limited to, 40GBASE-T. In addition, the jack may be backwards compatible with lower speed BASE-T applications (e.g., 10GBASE-T and/or below) when an RJ45 plug is mated to the jack. | 02-26-2015 |