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273results about "Aperture leaage reduction" patented technology
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Energy conditioning structure
InactiveUS7042703B2Multiple-port networksResistor terminals/electrodesElectrical conductorEnergy regulation
Owner:X2Y ATTENTUATORS
Connecting structure of shielded wire for shield connector
InactiveUS6358069B2Improve electromagnetic shielding performanceElectromagnetic shielding performance be deterioratedVehicle connectorsAperture leaage reductionMechanical engineering
Owner:YAZAKI CORP
Noise suppressing structure for shielded cable
InactiveUS6800805B2Low costMany timesElectrically conductive connectionsAperture leaage reductionShielded cableEngineering
A low-cost noise suppressive technology using a general connector, reliably grounding to a shielding sheath of shielded cable at a low impedance by simple structure. The structure comprises conductive shielding covers attached to a chassis to enclose both sides of the second connector of non-shielded type at a tip of the shielded cable connected to the first connector mounted on the chassis and are fixed in a state to mate each other. Gaskets made of elastic material are respectively attached to inside of each shielding covers and made of conductive material being in electrical contact with the shielding cover. The gaskets are elastically contacted and conducted with the shielding sheath at an exposed portion of the shielded cable when the shielding covers are attached to the chassis to enclose the second connector and are fixed in the state to mate each other.
Owner:NEC PLATFORMS LTD
Coaxial connector
InactiveUS20010034143A1Improve shielding effectSimple wayTwo pole connectionsIncorrect coupling preventionEngineeringBearing surface
A coaxial connector is suitable for being received in an opening in a panel, in particular a wall of a metal box. The connector comprises a conductive tubular body, a conductive tubular grounding plate and at least one resilient member, said grounding plate being movable in translation coaxially relative to said body, said grounding plate having a continuous rigid bearing surface for pressing against said panel, and said at least one resilient member, in particular a spring, being arranged to urge the grounding plate into a given position relative to the tubular body and to press the grounding plate against said panel when the connector is assembled with a complementary connector element.
Owner:RADIALL SA
Electromagnetic interference grouping clamp
InactiveUS6241200B1Drawback can be solvedPipe supportsAperture leaage reductionShielded cableElectromagnetic interference
A grounding clamp includes mechanical features for electrically interconnecting two or more shielding layers of shielded cables, and / or for interconnecting the shielding layer of one or more shielded cables to an electrically grounded chassis. The grounding clamp includes two elongated brackets, each having a first end and a second end, and each being formed of an electrically conductive material. The two brackets include undulating surfaces, and are interconnected to each other at their first ends by a tab and slot arrangement. When the two brackets face each other the undulations on their undulating surfaces are offset relative to one another. The second ends of the brackets are connected by a threaded fastener arrangement, so that cables may be pinched between the undulating surfaces to establish electrical conductivity between shielding layers of the cables and the grounding clamp. One of the two brackets may also include fastening features allowing the grounding clamp to be physically and electrically connected to a grounded chassis.
Owner:LUCENT TECH INC
Electromagnetic interference (EMI) collar and method for use with a pluggable optical transceiver module
InactiveUS7597590B2Improves EMI shielding effectivenessImprove shielding effectContact member manufacturingScreening gaskets/sealsTransceiverElectromagnetic interference
An EMI collar is provided that is configured to be secured about a housing of a pluggable optical transceiver module. The configuration of the EMI collar and the method by which the collar is attached to the housing of the transceiver module ensures that the collar will not be damaged when the transceiver module housing is inserted into a cage. Ensuring that the collar will not be damaged during insertion ensures that electrically conductive contact points on the collar will not be eliminated by insertion of the housing into a cage. In addition, dimples, or indentations, formed on the spring fingers of the EMI collar result in additional electrically conductive contact points on the fingers that result in a reduction in the size of the maximum EMI aperture dimension of the collar. Reducing the maximum EMI aperture dimension of the collar greatly improves the ability of the collar to attenuate EMI signals, even EMI signals having high frequencies.
Owner:BROADCOM INT PTE LTD
Coaxial connector
InactiveUS6354855B2Improve shielding effectSimple wayTwo pole connectionsIncorrect coupling preventionEngineeringBearing surface
A coaxial connector is suitable for being received in an opening in a panel, in particular a wall of a metal box. The connector comprises a conductive tubular body, a conductive tubular grounding plate and at least one resilient member, said grounding plate being movable in translation coaxially relative to said body, said grounding plate having a continuous rigid bearing surface for pressing against said panel, and said at least one resilient member, in particular a spring, being arranged to urge the grounding plate into a given position relative to the tubular body and to press the grounding plate against said panel when the connector is assembled with a complementary connector element.
Owner:RADIALL SA
Electromagnetic interference shield for I/O ports
ActiveUS20050265003A1Aperture leaage reductionDigital processing power distributionElectromagnetic interferenceEngineering
A computer system is provided, including: a computer chassis configured to retain a motherboard having a plurality of I / O (input / output) connectors mounted thereon; and an electrically conductive door movable from an open position to a closed position, wherein when said door is in the open position, the I / O connectors are exposed, and when said door is in the closed position, the I / O connectors are covered. A method of operating a computer including a motherboard having a plurality of I / O (input / output) connectors mounted thereon is provided. The method includes operating the computer to generate electromagnetic signals, and blocking the electromagnetic signals with an electrically conductive door movable from an open position to a closed position, wherein when said door is in the open position, the I / O connectors are exposed, and when said door is in the closed position, the I / O connectors are covered.
Owner:HEWLETT-PACKARD ENTERPRISE DEV LP
Power transmission system for a Faraday cage power source
InactiveUS6597255B1Improve the level ofHinders its propagationCurrent interference reductionAperture leaage reductionElectric power transmissionElectromagnetic radiation
A transmission system is provided for a power source to transfer power to equipment housed within a Faraday cage. The transmission system transfers energy along a non-conductive path yet remains in conductive contact with the Faraday cage. This prevents EMI disturbing electrical power provided within the Faraday cage and damaging equipment housed within the cage. The transmission system enables mains power to be transmitted to equipment housed within the Faraday cage without the need to provide conventional electric filters. The performance of the Faraday cage in shielding electromagnetic radiation is not compromised. Nor is the ability of the Faraday cage to shield electromagnetic radiation generated by communications equipment within the cage compromised.
Owner:NORTEL NETWORKS LTD
Receptacle cage, receptacle assembly, and transceiver module assembly
ActiveUS8870471B2Reliable suppressionAvoid radiationAperture leaage reductionCoupling device detailsTransceiverOptical Module
In a receptacle cage, a front EMI finger in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between the peripheral edge of a slot of a cover, into which a plug connector for the optical module connected to a receptacle connector in a receptacle connector accommodating portion is inserted, and a peripheral surface of a plug connector and a gap between a lower surface of the cover and a surface, on which a printed wiring board is mounted, are shielded by an EMI gasket serving as a second shield member and an EMI gasket serving as a third shield member, respectively.
Owner:YAMAICHI ELECTRONICS
Method and system of feeding cable through an enclosure while maintaining electrognetic shielding
InactiveUS20080164059A1Aperture leaage reductionCoupling protective earth/shielding arrangementsElectrical conductorElectromagnetic shielding
An exemplary embodiment disclosed herein relates to a method of feeding cable through a wall. The method includes, cutting an outer jacket of a cable, and pulling the outer jacket away from the cut thereby exposing an electromagnetic interference shielding layer. The method further includes, clamping a conductor around the shielding layer, securing the clamped conductor to a conductive wall, and electrically connecting the clamped conductor to the conductive wall.
Owner:IBM CORP
Receptacle cage, receptacle assembly, and transceiver module assembly
InactiveUS20140202755A1Reliable suppressionAvoid radiationAperture leaage reductionCouplings bases/casesOptical ModuleTransceiver
In a receptacle cage, a front EMI fingers in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between outer peripheral surfaces of an upper case as well as a lower plate of an optical module connected to a receptacle connector in a receptacle connector accommodating portion and an inner surface of the cage is shielded by a top EMI fingers serving as a second shield member and side EMI fingers serving as third shield members. Moreover, the lower plate comes into contact with a bottom wall portion which is grounded.
Owner:YAMAICHI ELECTRONICS
Electromagnetic interference shield for I/O ports
ActiveUS7411784B2Aperture leaage reductionDigital processing power distributionElectromagnetic interferenceComputerized system
A computer system is provided, including: a computer chassis configured to retain a motherboard having a plurality of I / O (input / output) connectors mounted thereon; and an electrically conductive door movable from an open position to a closed position, wherein when said door is in the open position, the I / O connectors are exposed, and when said door is in the closed position, the I / O connectors are covered. A method of operating a computer including a motherboard having a plurality of I / O (input / output) connectors mounted thereon is provided. The method includes operating the computer to generate electromagnetic signals, and blocking the electromagnetic signals with an electrically conductive door movable from an open position to a closed position, wherein when said door is in the open position, the I / O connectors are exposed, and when said door is in the closed position, the I / O connectors are covered.
Owner:HEWLETT-PACKARD ENTERPRISE DEV LP
Connector which can easily be mounted to an object and provided with EMI protection
InactiveUS7077696B2Easy to installSubstation/switching arrangement detailsAperture leaage reductionMating connectionMechanical engineering
In a connector including a connector element to be connected to a mating connector in a predetermined direction, a ring-shaped guide member is engaged with the connector element in the predetermined direction to receive the mating connector. The guide member has a spring portion which is formed on its inner surface and is adapted to be pressed by the mating connector in a radially outward direction. The spring portion serves to stabilize the mating connector.
Owner:JAPAN AVIATION ELECTRONICS IND LTD
Wiring member
ActiveUS20150289420A1Restrict movementVehicle connectorsAperture leaage reductionElectromagnetic wave absorberEngineering
A wire harness includes first to third electric wires, a braid shield that covers the first to third electric wires, and a tube-shaped electromagnetic wave absorber having a through hole that allows the first to third electric wires to be inserted therethrough, the electromagnetic wave absorber absorbing electromagnetic waves emitted from the first to third electric wires. The braid shield covers an outer circumferential surface and two axial end surfaces of the electromagnetic wave absorber to restrict movement of the electromagnetic wave absorber in an axial direction. The braid shield satisfies 1≦n≦15 and 10≦m≦50 where the number of carriers of the braid shield is denoted by n and the number of ends of the braid shield is denoted by m.
Owner:HITACHI METALS LTD
Electrical connector assembly with EMI gasket
ActiveUS8203084B2Electrically conductive connectionsScreening gaskets/sealsEngineeringElectrical connector
An electrical connector assembly includes an electrically conductive cage having a cage end configured for mounting in a panel opening. The cage has a compartment for receiving a pluggable electrical component therein. The cage end has a circumference defined by an exterior surface of the cage. A retention frame extends over the cage end along at least a portion of the circumference. The retention frame includes a gasket side and a rear side. A retention opening extends through the gasket and rear sides of the retention frame. An EMI gasket is mounted on the cage end. The EMI gasket includes a length of electrically conductive cord having opposite cord ends. The cord is wrapped externally around the cage end forming a continuous band that engages the exterior surface of the cage along at least a portion of the circumference. The cord extends along and engages the gasket side of the retention frame and the cord ends extend through the retention opening and along the rear side of the retention frame.
Owner:TYCO ELECTRONICS LOGISTICS AG (CH)
Electrical connector having an EMI absorber
ActiveUS20150044909A1Electrically conductive connectionsAperture leaage reductionElectromagnetic interferenceEngineering
An electrical connector is provided for terminating a cable having a cable shield. The electrical connector includes an electrical contact configured to be terminated to an end of a wire of the cable, and a housing having a body that extends from a mating end to a cable end. The housing includes a connector shield. The electrical contact is held by the housing. The cable end includes a cable channel that is configured to hold an end segment of the cable therein such that the cable shield is electrically engaged with the connector shield. An electromagnetic interference (EMI) absorber is held within the cable channel such that the EMI absorber is configured to extend around the cable shield along at least a portion of a length of the cable channel. The EMI absorber is configured to absorb EMI emitted from the cable.
Owner:TYCO ELECTRONICS LOGISTICS AG (CH)
Bushing arrangement
InactiveUS6777616B2Easily experience interferenceEasy to passNon-metal conductorsAperture leaage reductionElectrical and Electronics engineeringElectrically conductive
A bushing arrangement and method for passing an electrical cable with conductive shielding through an opening in a wall while providing protection against electromagnetic overtension and electrical interference and the like, including the placement of an electrically conductive bushing in the wall opening that is electrically connected to earth ground potential, and electrically connecting an electrically conductive tape between the electrically conducting shielding and the electrically conductive bushing so as to connect the conductive shielding to earth ground potential. The electrically conductive tape is made electrically conductive by the use of carbon black particles.
Owner:BEELE ENG
Electromagnetic wave shielding structure
InactiveUS20050208798A1Reduce noiseVehicle connectorsAperture leaage reductionElectrical devicesEngineering
The present invention provides an electromagnetic wave shielding structure for shielding electromagnetic waves emitted from a harness of electrical equipment. For example, a vehicle body of an electric vehicle is provided with a direct current power source, an inverter, and a driving motor. The direct current power source and the inverter, and the inverter and the driving motor are connected to each other by harnesses, respectively. Around the harnesses, cylindrical members for shielding electromagnetic waves are provided, respectively, so as to cover the harnesses. The peripheral wall of the cylindrical member made of aluminum, on which an uneven portion is formed continuously in the axial direction, shields electromagnetic waves emitted from the harness to the outside.
Owner:OHTSUKA
Pluggable module having cooling channel
A pluggable module includes a pluggable body having a top and channel walls extending above the top defining a cooling channel along the top. The cooling channel allows airflow between a front end and a mating end of the pluggable body. The pluggable module includes a communication circuit board held in the pluggable body. The pluggable module includes an EMI shield coupled to the pluggable body above the top. The EMI shield has a shield plate spanning the cooling channel. The shield plate is metal and provides electrical shielding across the cooling channel. The shield plate has openings allowing airflow therethrough to flow through the cooling channel.
Owner:TYCO ELECTRONICS LOGISTICS AG (CH)
Receptacle cage, receptacle assembly, and transceiver module assembly
ActiveUS8714839B2Reliable suppressionAvoid radiationAperture leaage reductionCouplings bases/casesOptical ModuleTransceiver
In a receptacle cage, a front EMI fingers in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between outer peripheral surfaces of an upper case as well as a lower plate of an optical module connected to a receptacle connector in a receptacle connector accommodating portion and an inner surface of the cage is shielded by a top EMI fingers serving as a second shield member and side EMI fingers serving as third shield members. Moreover, the lower plate comes into contact with a bottom wall portion which is grounded.
Owner:YAMAICHI ELECTRONICS
Cable connection device, line feedthrough provided therewith, and use thereof
InactiveUS20120015555A1Simple designEasy to useElectrically conductive connectionsAperture leaage reductionEngineeringElectromagnetic shielding
The invention relates to a cable connection device for connecting a cable to a housing that is to be electromagnetically shielded, comprising a sheath, which serves to surround the cable in the region of a cable feedthrough opening in the housing and is designed to be electrically conductive at least at its surface. In order to achieve a cable connection device with a simple design which can be used for different cables and has improved shielding, the invention proposes that the sheath completely covers a cable feedthrough opening, which is associated with the housing, when viewed in a direction axial to the cable feedthrough opening, the sheath being provided with shielding structures for damping electromagnetic radiation on an inner surface, which points towards the cable to be accommodated.
Owner:AIRBUS OPERATIONS GMBH
Receptacle cage, receptacle assembly, and transceiver module assembly
ActiveUS20130051738A1Reliable suppressionAvoid radiationAperture leaage reductionCouplings bases/casesOptical ModuleTransceiver
In a receptacle cage, a front EMI fingers in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between outer peripheral surfaces of an upper case as well as a lower plate of an optical module connected to a receptacle connector in a receptacle connector accommodating portion and an inner surface of the cage is shielded by a top EMI fingers serving as a second shield member and side EMI fingers serving as third shield members. Moreover, the lower plate comes into contact with a bottom wall portion which is grounded.
Owner:YAMAICHI ELECTRONICS
Disk drive cage with shielding member
InactiveUS7755913B2Digital data processing detailsAperture leaage reductionEngineeringMechanical engineering
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Electromagnetically shielded slot transmission line
InactiveUS7151420B2Easy to controlSimple transmission structureAperture leaage reductionPrinted circuit aspectsDielectric substrateEngineering
An electro-magnetically shielded slot-transmission line is formed by metallizing the opposing sides of a slot cut through a dielectric substrate. A ground plane is deposited on the bottom of the substrate. Conductive vias through the substrate and that contact the ground plane are located on both sides of the metallized slot surfaces. Conductive pads on the upper surface and which contact the vias provide additional shielding.
Owner:MOLEX INC
Magnetic composite tape for inhibiting radiation noise and radiation noise inhibiting component using same
InactiveUS6143406AGood adhesionAperture leaage reductionRecord information storageNoise controlMagnetic tape
A magnetic composite tape for inhibiting radiation noise and a radiation noise inhibiting component using such a magnetic composite tape which can be easily attached to a cable and has a high radiation noise inhibiting effect are provided. A magnetic composite tape for radiation noise control has an elongated shape, and includes a magnetic band member and a metal foil provided on the surface of the magnetic band member. The magnetic band member includes a rubber or a flexible resin and ferrite magnetic powders. One side of the metal foil in a width direction projects from one side of the magnetic band member. An adhesive is applied on the other surface of the magnetic band member. The composite tape is wound and attached with the adhesive applied on the other surface of the magnetic band member at a location on a cable, such as an interface cable, a head cable (power supply cable) or the like, which is to located close to an electronic apparatus containing an oscillation circuit. The composite tape is wound such that the projected left side of the metal foil can overlap the adjacent right side of the metal foil.
Owner:MURATA MFG CO LTD
Electromagnetic interference (EMI) collar and method for use with a pluggable optical transceiver module
InactiveUS20090196008A1Improves EMI shieldingReduce in quantityContact member manufacturingScreening gaskets/sealsTransceiverElectromagnetic interference
An EMI collar is provided that is configured to be secured about a housing of a pluggable optical transceiver module. The configuration of the EMI collar and the method by which the collar is attached to the housing of the transceiver module ensures that the collar will not be damaged when the transceiver module housing is inserted into a cage. Ensuring that the collar will not be damaged during insertion ensures that electrically conductive contact points on the collar will not be eliminated by insertion of the housing into a cage. In addition, dimples, or indentations, formed on the spring fingers of the EMI collar result in additional electrically conductive contact points on the fingers that result in a reduction in the size of the maximum EMI aperture dimension of the collar. Reducing the maximum EMI aperture dimension of the collar greatly improves the ability of the collar to attenuate EMI signals, even EMI signals having high frequencies.
Owner:BROADCOM INT PTE LTD
Noise suppressing structure for shielded cable
ActiveUS20040118582A1Low costMany timesElectrically conductive connectionsAperture leaage reductionShielded cableConductive materials
A low-cost noise suppressive technology using a general connector, reliably grounding to a shielding sheath of shielded cable at a low impedance by simple structure. The structure comprises conductive shielding covers attached to a chassis to enclose both sides of the second connector of non-shielded type at a tip of the shielded cable connected to the first connector mounted on the chassis and are fixed in a state to mate each other. Gaskets made of elastic material are respectively attached to inside of each shielding covers and made of conductive material being in electrical contact with the shielding cover. The gaskets are elastically contacted and conducted with the shielding sheath at an exposed portion of the shielded cable when the shielding covers are attached to the chassis to enclose the second connector and are fixed in the state to mate each other.
Owner:NEC PLATFORMS LTD
Cable feed-through
ActiveUS7507907B2For a reliable connectionFirmly connectedElectrically conductive connectionsAperture leaage reductionBristleContact element
A cable feed-through is provided in accordance with the present invention. The cable feed-through comprises a housing which can be fixed to an appliance, a fixing device for a cable held on the housing and a shield contact element held on the housing. The shield contact element comprises a bristle element for making contact with a cable shield with elastic and electrically conductive bristles.
Owner:LAPP ENG
Integrated rotary connector and dynamic RF shield
A rotary cable connector assembly for connecting coaxial waveguides. The assembly includes a metal stator having a counterbored well and a metal rotor extending coaxially into the well. An axial air gap is formed between the stator and rotor which each contain a conventional dielectric sleeve and center element for mating conventionally to carry a signal therebetween. An electrical connector / dynamic RF shield for providing an electrical path across the rotary joint and for shielding the air gap includes a pair of rings having crenelated cylindrical leaves extending axially toward each other and being interspersed. Each ring has a face for making electrical contact with the stator and rotor. A spring urges the rings into contact with the stator and rotor. The crenelated leaves provide RF shielding of the air gap surrounded by the shield. The rings are formed of bronze or other non-precious metal or alloy.
Owner:KEVLIN CORP
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