Patent application number | Description | Published |
20080205022 | Toolless alignment, retention, connection, termination and testing on printed circuit boards - Embodiments of the present invention provide a system for testing and mounting a PCB in a device. A PCB may be placed on one or more standoffs so that a head portion of the standoff protrudes from one or more apertures of the PCB. A push-pin type standoff cap may then be placed on the protruding heads to mechanically restrain the PCB to the standoffs. Furthermore, one or more cables may be coupled with the standoff caps to provide power or test signals to one or more connector pads on the PCB. Therefore, the standoff caps provide a system for aligning, retaining, connecting, terminating, and testing printed circuit boards. | 08-28-2008 |
20080217868 | Electroactive Polymer Compressed Gasket for Electromagnetic Shielding - A gasket for shielding a seam between two surfaces includes a resilient member, a first electrode, a second electrode and a conductive layer. The resilient member has a first side and an opposite second side. The first electrode is disposed on the first side of the resilient member. The second electrode is disposed on the second side of the resilient member. The conductive layer envelops at least a portion of the resilient member, the first electrode and the second electrode. The resilient member includes a material that is compressed when a first potential is applied between the first electrode and the second electrode and that is decompressed when a second potential, different from the first potential, is applied between the first electrode and the second electrode. | 09-11-2008 |
20080230256 | STRUCTURE AND METHOD FOR A TWISTED BUS BAR FOR LOW IMPEDANCE POWER DISTRIBUTION AND ELECTROMAGNETIC FIELD SUPPRESSION - A twisted pair symmetric bus bar structure for electric power distribution includes a first conductor; a second conductor; an insulator; wherein the first conductor and the second conductor form an interwoven alternating interlocking pattern; wherein the first and second conductors are formed from a series of Z-shaped sections; wherein the insulator is H-shaped and has a series of slots for receiving the first and second conductors; and wherein the insulator is sandwiched between the first and second conductor. | 09-25-2008 |
20080245607 | AIR EXHAUST/INLET SOUND ATTENUATION MECHANISM - An attenuation mechanism for an electronic device is presented. The attenuation mechanism includes an outer member that has an inner member oriented axially within the outer member. The inner member has an axial twist that causes a line of sight blockage between an exterior and an interior of a housing of an electronic device when the attenuation mechanism is mounted through the housing, such that sound and electromagnetic radiation is attenuated without obstructing cooling air that is flowing through the housing. | 10-09-2008 |
20090056350 | BIMETALLIC HEAT SINK AIR DEFLECTORS FOR DIRECTED AIRFLOW FOR IMPROVED THERMAL TRANSFER AND DISSIPATION - A cooling apparatus, includes: one or more bimetallic deflectors attached to a mounting post, the mounting post configured for mating engagement with a protrusion of a heat sink, such that the one or more bimetallic deflectors are in thermal contact with the protrusion when the mounting post is engaged therewith; wherein the bimetallic deflectors are configured to deflect in response to thermal energy conducted from the protrusions so as to change a direction of airflow incident thereupon. | 03-05-2009 |
20090061664 | GROUNDING ONE OR MORE CABLES - An apparatus is for grounding one or more cables, each cable having a cable jacket surrounding an electrically conductive layer that includes an exposed portion not covered by the cable jacket. The apparatus includes an electrically conductive enclosure coupled to a ground potential and having an opening therethrough, a plurality of electrical conductors disposed across the opening to form a lattice, and an electrically conductive connection. The lattice is configured to receive the one or more cables therethrough such that the exposed portion of the electrically conductive layer of each cable makes electrical contact with at least one of the electrical conductors. The connection is electrical coupled to the lattice and the enclosure such that the electrically conductive layer of each cable received through the lattice is electrically coupled to the ground potential through the lattice, the connection, and the enclosure. | 03-05-2009 |
20090108860 | VERSATILE MATERIALS PROBE - Disclosed is an electrical measurement probe including two probe blocks, each probe block having a connection face and a measurement face. Each probe block also includes a plurality of spring loaded pogo pins. Each pogo pin has a first end that extends to the connection face and a second end that protrudes from the measurement face. The two probe blocks are attached to a top plate. The top plate is attached to a face of each probe block opposite to the measurement face of the probe block. | 04-30-2009 |
20090174982 | CONTROLLING THE FLOW OF ELECTROSTATIC DISCHARGE CURRENTS - A method and system for controlling the electrical connection between the metallic covers and the underlying metal chassis of an electrical system by the select placement of impedances in a current control connector. The current control connector places an impedance, capable of controlling electrostatic discharge (ESD) currents, between the covers and the underlying chassis. The current control connector comprises a number of metallic and dielectric components. Each of these components is ideally chosen such that the structure and composition of each component contributes to an overall functionality of the current control connector and an ability to control the ESD current flow. The relative placement of the components of the current control connector allows the current control connector to eliminate current flow along a number of paths but control the current flow along a preferred path. Thus, the current control connector prevents damage to the internal electrical system. | 07-09-2009 |
20090268858 | DUAL CLOCK SPREAD FOR LOW CLOCK EMISSIONS WITH RECOVERY - A method and apparatus provides for the generation and recovery of a stable clock signal having harmonic emission suppressions using dual spread spectrum clock signals. The transmission frequencies of non-mixed, spread spectrum lower frequency clock signals may be varied and, upon receipt of these non-mixed signals, they are mixed into sum and difference signals. The sum signal thus generated is representative of the desired clock signal to be recovered. Such conditioning of the non-mixed signals need only occur within the receiver, thereby allow the channel that transmits the non-mixed lower frequency clock signals to the receiver to be lower bandwidth than would be required to carry the final, recovered, and higher frequency clock signal produced by the receiver. | 10-29-2009 |
20100226090 | TEMPERATURE CONTROL SYSTEM FOR AN ELECTRONIC DEVICE CABINET - An electronic device cabinet includes a first temperature control system positioned to direct a conditioned airflow into a first electronic device storage zone of the cabinet and a second temperature control system positioned to direct a conditioned airflow into a second electronic device storage zone of the cabinet. The first temperature control system includes a first plurality of vortex tubes having a compressed air inlet and a first cooling air outlet that guides cooling air into the first device storage zone. The second temperature control system includes a second plurality of vortex tubes having a compressed air inlet and a second cooling air outlet that guides cooling air into the second device storage zone. A controller selectively delivers compressed air to respective ones of the first and second temperature control systems upon sensing a demand for cooling in corresponding ones of the first and second electronic device storage zones. | 09-09-2010 |
20100277182 | Implementing A Coded Time Domain Transmission Distance Meter - A method and circuit for implementing a coded time domain transmission distance meter, and a design structure on which the subject circuit resides are provided. A first transmitter module connected to a cable at a first point or power outlet, generates and sends a testing coded pulse onto the power cable. A second receiver module connected to the cable at a second point, receives the testing coded pulse, and returns a receiver response coded pulse to the transmitter module. The first transmitter module determines the round-trip elapsed time, subtracts a receiver latency time, and calculates a distance to the second receiver module. Encoded in the testing coded pulse are data representing the last calculated distance. Both the first transmitter module and the second receiver module include a display for displaying the calculated distance. | 11-04-2010 |
20100290508 | Implementing Single Line Asynchronous Dual Watchdog Communication for ESD Immunity - A method and dual watchdog communication circuit for implementing single line asynchronous dual watchdog communication for electrostatic discharge (ESD) immunity, and a design structure on which the subject circuit resides are provided. The dual watchdog communication circuit includes a source transceiver module and a sink transceiver module connected together by a single line, each of the source transceiver module and the sink transceiver module uses a coded pulse for the single line asynchronous dual watchdog communication. | 11-18-2010 |
20100311275 | IMPLEMENTING ADAPTABLE THREE PHASE MODULAR LINE FILTERING - A modular line filter connector is provided for implementing adaptable three-phase power filtering. A plurality of selected modular components defines the modular line filter connector. The modular line filter connector includes a pair of outer cylinders providing power filtering connections including, for example, line-to-line connections, line-to-common connections, common-to-protective earth connections, and line-to-protective earth connections. The selected modular components are mounted between the pair of outer cylinders and disposed along the length of the modular line filter connector. Different modular components are selected to adapt the modular line filter connector for different filtering applications. | 12-09-2010 |
20110292631 | APERTURE EDGE EMISSION SUPPRESSION USING FERRITE - An electronic device is within a housing that has an aperture through an enclosure surface of the housing. A ferrite block is attached to an edge of the aperture, thus transforming electromagnetically-induced current next to the aperture into heat in order to reduce a voltage across the aperture, thereby suppressing aperture edge emissions. | 12-01-2011 |
20120025930 | PROGRAMMABLE ANTIFUSE MATRIX FOR MODULE DECOUPLING - An adapter couples a module to a circuit board. The adapter comprises a decoupling capacitor, which has a first capacitor plate and a second capacitor plate separated by an insulating dielectric, located within the adapter. A voltage pin and a ground pin within the adapter traverse through the decoupling capacitor in order to make voltage and ground connections between the module and the circuit board. A first fusible ring, which is adjacent to the first capacitor plate, encircles the voltage pin, and a second fusible ring, which is adjacent to the second capacitor plate, encircles the ground pin. When the first and second fusible rings are fused to their respective capacitor plates, the decoupling capacitor provides the module with decoupling capacitance protection from stray alternating current voltage, and also provides the module with power/ground sources to compensate for current/ground spikes. | 02-02-2012 |
20120033373 | RADIAL OPTICAL DATA INTERCHANGE PACKAGING - A radial optical data interchange packaging comprises a central core; a plurality of central core photo transceivers emerging from an exterior side surface of the central core; a mother board coupled to the central core, wherein the mother board is perpendicularly oriented below and abutting the central core; a plurality of retention slots on the mother board, wherein the retention slots radially extend away from the central core; and a plurality of cards held by the retention slots, wherein each of the plurality of cards comprises a set of card photo transceivers that optically communicate with the central core photo transceivers. | 02-09-2012 |
20120138353 | IMPLEMENTING INCREASED LATCHING FORCE WITH GASKET FOR PERPENDICULAR SURFACES - A method and structures are provided for implementing a latching gasket including an electrically conductive fabric, and a latching clip. The latching clip includes a support member carrying the electrically conductive fabric for radio frequency (RF) connection engagement with a first wall surface. The latching clip includes a first channel-defining member and a second channel-defining member extending downwardly from the support member. The first channel-defining member carries the electrically conductive fabric for radio frequency (RF) connection engagement with a second wall surface received in a channel defined by the first and second channel-defining members. The latching clip includes a latch arm extending outwardly and downwardly from an end of the support member near the second channel-defining member. The second channel-defining member includes an outwardly and upwardly extending plate with at least one latching tab for latching engagement and spring biasing with the latch arm in a closed position of the latching gasket. | 06-07-2012 |
20120188742 | IMPLEMENTING SURFACE MOUNT COMPONENTS WITH SYMMETRIC REFERENCE BALANCE - A method and structure are provided for implementing surface mount components with symmetric reference balance. A first reference and an incoming signal are received in a surface mounted device (SMD) package and a second reference and the outgoing signal are output from the SMD package. A capacitor structure is defined within the SMD package between the first reference and the second reference. The capacitor structure includes a balanced impedance structure between the first reference and the second reference. A component connected between the received incoming signal and output signal is generally centrally located within the capacitor structure. | 07-26-2012 |
20120211253 | IMPLEMENTING FLEX CIRCUIT CABLE AND CONNECTOR WITH DUAL SHIELDED AIR PLENUM - A method, system, and structure are provided for implementing a flex circuit cable and connector with a dual shielded air plenum. A flex circuit cable is provided with a connector. The flex circuit cable includes a stack of three spaced flex cable members with a plurality of gasket separators that are configured to form a pair of air plenums between the inner flex cable member and the respective outer flex cable members carrying cooling air coupled to the connector. The respective outer flex cable members together with the gasket separators provide a shielding function. | 08-23-2012 |
20120262826 | Directing the Flow of Electrostatic Discharge (ESD) Current to a Targeted Impedance Using Nested Plates - A mechanism for protecting objects sensitive to electrostatic discharge (ESD) employs nested plates to direct the flow of ESD current to a targeted impedance. In one embodiment, an insulator plate is interposed between first and second electrically conductive plates. The insulator plate prevents any charge accumulating on the first plate from arcing to the second plate through the insulator plate. A target plate of electrically conductive material is interposed between the first and second plates over a hole in the insulator plate. The target plate, which is surrounded by an impedance layer of static dissipative material, includes a discharge portion that projects toward the second plate. ESD current flows in a path from the first plate, through the impedance layer, the target plate and again through the impedance layer, and to the second plate. The impedance layer provides a targeted impedance in the ESD current path. | 10-18-2012 |
20130058045 | HEATSINK WITH SUBSTANCE EMBEDDED TO SUPPRESS ELECTROMAGNETIC INTERFERENCE - A heatsink may include an area in thermal contact with a semiconductor microchip surface and a first trench of a first depth. The first trench may be substantially continuous around the area. A first substance, such as ferrite, may be positioned in the first trench to attenuate electromagnetic interference. A second trench having a second depth may be formed around and further from the area than the first trench. A second substance may be positioned in the second trench. | 03-07-2013 |
20130094170 | ELECTROMAGNETIC INTERFERENCE SHIELD - An electromagnetic interference (EMI) shield that increases the airflow through the EMI shield while preventing line-of-sight openings through the EMI shield. Two plates are coupled together. Each of the respective plates has a raised component with an aperture therethrough to provide a path through the plate. The raised component is preferably scoop-shaped with the aperture at one end and an opposite end tapering into the respective plate. At least a portion of one of the raised components overlaps at least a portion of the other of the raised components when the plates are coupled together to form a path through the plates, while the plates are coupled together. Line-of-sight openings through the plates, to an electronic device protected by the EMI shield, are at least partially prevented by the raised components. | 04-18-2013 |
20130333928 | IMPLEMENTING FEED-THROUGH AND DOMAIN ISOLATION USING FERRITE AND CONTAINMENT BARRIERS - Methods and structures are provided for implementing feed-through and domain isolation using ferrite and containment barriers. A vertical isolator is provided between a first domain and a second domain on a printed circuit board with signals passing between the first domain and the second domain. The vertical isolator is placed over a domain separation gap between the first and second domains in the printed circuit board, the vertical isolator having a vertical isolation barrier between a first vertical plate coupled to the first domain and a second vertical plate coupled to the second domain. The vertical isolation barrier is formed of a unitary ferrite block or a non-conductive magnetic absorber material. A plurality of capacitance feed-through plates and a dielectric material are provided within the vertical isolator. | 12-19-2013 |
20140054082 | IMPLEMENTING PRESS-LOCK EMC GASKET WITH ABSORBER - A method and structures are provided for implementing press-lock electromagnetic compatibility (EMC) gaskets. A gasket includes a plurality of fasteners received through a plurality of corresponding mounting apertures in a perforated support surface for precise placement, and retention without adhesives. The corresponding mounting apertures have a diameter smaller than 1/20th of a wavelength of the highest frequency to be suppressed to remain independent of the shielding required. The gasket defines a cavity receiving compliant foam, and includes an absorber. | 02-27-2014 |
20140140007 | HEAT SINK STRUCTURE WITH RADIO FREQUENCY ABSORPTION - According to embodiments of the invention, a heat sink structure may be provided. The heat sink structure may include a first surface adapted to connect to an electronic component. The heat sink structure may also include a second surface adapted to provide heat transfer. The heat sink structure may also include a coating of radio-frequency absorbing material covering at least a portion of the second surface. | 05-22-2014 |
20140146512 | ELECTROMAGNETIC INTERFERENCE MODE STIRRER - An apparatus for distributing electromagnetic waves comprising a first plurality of plates coupled to a first rod. A second plurality of plates coupled to a second rod, wherein at least one of either the first or the second plurality of plates is capable of reflecting an electromagnetic wave. A portion of the second rod is situated inside the first rod. A first motor mechanically connected to the first rod, such that the first motor is capable of rotating the first rod. A second motor mechanically connected to the second rod, such that the second motor is capable of rotating the second rod, wherein rotational direction and speed of the second rod, when rotated by the second motor is independent of rotational direction and speed of the first rod, when rotated by the first motor. | 05-29-2014 |
20140169021 | LIGHT PIPE WITH ELECTROMAGNETIC INTERFERENCE SHIELDING - A light pipe assembly may include a first light pipe having a light pipe column element at an end of the first light pipe. The light pipe column element may have a plurality of light pipe columns. The light pipe assembly may include a second light pipe having a plurality of light pipe column receptacles at an end of the second light pipe. Also, an electrically conductive panel having a light pipe aperture. The light pipe aperture may have a plurality of light pipe channels. The plurality of light pipe columns is adapted to pass through the plurality of light pipe channels and be received by the plurality of light pipe column receptacles. | 06-19-2014 |
20140183709 | COMPARTMENTALIZED HEAT SPREADER FOR ELECTROMAGNETIC MITIGATION - An approach for compartmentalizing heat spreaders within an integrated circuit package is provided. In one aspect, the approach comprises a shielding member that is connected to the integrated circuit package. The shielding member is further adapted to provide a shielded enclosure to the integrated circuit package, wherein the shielded enclosure contains an internal cavity filled with frequency absorber material to dissipate radio frequency energy emitted by the integrated circuit package. In another aspect, the shielding member comprises compartments including an outer vertical layer, a top layer, and an inner vertical layer that provides heat transfer from the heat spreader to the top layer of the shielding member. In addition, the heat is transferred from the top layer of the compartments of the shielding member to a heat sink of the integrated circuit package. | 07-03-2014 |
20140284030 | INTERLEAVED HEAT SINK AND FAN ASSEMBLY - According to embodiments of the invention, a structure for cooling electronic components may be provided. The structure may include a heat sink having a plurality of parallel heat conducting elements. The structure may also include a plurality of fans, wherein the fans are interleaved with the heat conducting elements. The structure may also include a drive shaft passing through the heat conducting elements and the fans, wherein the drive shaft rotates the fans in relation to the heat sink. According to other embodiments, the structure may include a baffle located on a side of the heat sink in an upstream location within an airflow stream. | 09-25-2014 |
20150029687 | DEVICE FOR ATTENUATING PROPAGATION AND RECEPTION OF ELECTROMAGNETIC INTERFERENCE FOR A PCB-CHASSIS STRUCTURE - A first substantially annular conductive material has a first central opening, the first central opening is sufficient to substantially surround a fastener and maintain an electrical connection between the printed circuit board and the chassis. A second substantially annular conductive material is concentric with the first conductive material and the second conductive material hays a second central opening which is sufficient to substantially surround the fastener and maintain the electric connection between the printed circuit board and the chassis. A substantially annular impedance material is between and adjacent to the first conductive material and the second conductive material, the impedance material is sufficient to attenuate the electromagnetic interference from the system. | 01-29-2015 |
20150085447 | GROUNDED BELT AND MOVABLE DRAWER APPARATUS - A grounded belt and drawer apparatus including a drawer, mounted on a first track, a tensioner body having a first pulley, a supporting member, and a first belt. The drawer moveable on a first line in a first direction and a second direction. The tensioner body mounted on a second track and moveable in the first direction and the second direction. The first belt having a first end and a second end, rounded over the first pulley, and a first segment and second segment extending distally from the first pulley in the first direction. The first belt conductively connected to the drawer and to a first fixed point which forms a conductive path from the drawer to the first fixed point. | 03-26-2015 |