Abstract: 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.

Abstract: 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.

Abstract: A grounding spring for electromagnetic interference (EMI) suppression is interposed between a heat sink and a printed circuit board (PCB). The grounding spring comprises a conductive material having an opening formed at its base through which the heat sink makes thermal contact with an electronic module mounted on the PCB. The base makes electrical contact with a peripheral surface of the heat sink, and multiple-jointed spring fingers extend from the base to make electrical contact with conductive pads on the PCB. During compression, the movement of each spring finger's tip is substantially limited to the z-axis. Accordingly, the final installed location of the tip can be precisely controlled even when the grounding spring must accommodate a wide variety of installed heights of the heat sink relative to the PCB. Preferably, the spring fingers terminate with a concave tip that is less susceptible to sliding off the conductive pads.

Abstract: In a method for reducing electromagnetic interference in a clocked circuit, the clock circuit includes at least a first clock signal and a second clock signal. The method detects when a first transition of the first clock signal is substantially aligned with a corresponding second transition of the second clock signal. The second clock signal is delayed by a predetermined amount of time when the first transition is substantially aligned with the second transition.

Abstract: Disclosed is an apparatus for improving server electromagnetic shielding at high and low frequencies, including a metallic plate in fixed association with a surface of a server casing, the metallic plate defining a plurality of openings, and a substantially plastic shield including conductive metal fibers and defining a plurality of bosses extending from a boss surface of the plastic shield, the bosses configured to be insertable within the plurality of openings to allow the boss surface to be disposed adjacent to the metallic plate, each of the plurality of bosses defining a boss cavity that extends entirely through the plurality of bosses and the plastic shield.

Abstract: A modular heat sink and semiconductor chip assembly includes a semiconductor chip, a base plate disposed in a heat conducting relationship with the semiconductor chip and containing a plurality of slots extending through the base plate, a plurality of fins individually passed through a number of the plurality of slots and containing voltage less input/output connections to facilitate grounding with the chip, and at least one electrical component passed through one of the plurality of slots and containing a high-density input/output structure on one edge and is electrically connected to the semiconductor chip.

Abstract: Heat transfer systems for dissipating thermal loads from a computer rack are disclosed that include: an expandable heat transfer bus extending along the rack, the expandable heat transfer bus capable of passing a thermal transport; one or more heat sinks connected to the expandable heat transfer bus, each heat sink capable of receiving the thermal transport from the bus and returning the thermal transport to the bus, and each heat sink capable of transferring into the thermal transport a thermal load from an electronic component inside a rack module mounted to the rack; and a heat exchanger connected to the expandable heat transfer bus capable of dissipating the thermal load of the thermal transport.

Abstract: An improved electromagnetic radiation (EMR) shield that has minimal airflow resistance is presented. The EMR shield includes: a base plate; and plurality of columns that project away from the base plate, wherein each of the columns has a first end that is attached to the base plate, a second end that is distal to the base plate, and a side surface that has at least one side hole therein.

Abstract: A method for generating spread spectrum clock signals having harmonic emission suppressions is disclosed. A set of delayed clock signals is initially generated by delaying a high-speed clock signal via a set of delay modules. Then, the leading edge of a first one of the delayed clock signals is selectively combined with a trailing edge of any one of the delayed clock signals to form a half-period spread spectrum clock signal having low harmonic emissions.

Abstract: 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.

Abstract: An open-ended spin tool comprising a first z-shaped structure, a second z-shaped structure, the second z-shaped structure being pivotably associated with the first z-shaped structure, a first gripping portion cavity, a first actuatable roller and a second actuatable roller, a rubber belt disposed parametrically around the first actuatable roller and the second actuatable roller, wherein the rubber belt is deformable to at least partially conform to a rotatable element, a motor to actuate rotation of the first actuatable roller and the second actuatable roller, at least one trigger roller, and an electric association between the at least one trigger roller and the motor, wherein depression of the at least one trigger roller triggers the motor to actuate rotation of the first actuatable roller and the second actuatable roller.

Abstract: Disclosed is a server cooling appendage including an entry fan containing structure that includes an entry fan, and an entry plenum connected to the entry fan containing structure and connectable to a server housing, wherein the entry fan containing structure and the entry plenum are disposed externally to a server housing. Also disclosed is an exit fan containing structure containing an exit fan, an exit plenum connected to the exit fan containing structure, wherein the exit fan containing structure and the exit plenum, are disposed externally to the server housing.

Abstract: A printed circuit board having via arrangements for reducing crosstalk is disclosed. The printed circuit board includes a first layer and a second layer. The printed circuit board also includes a first via and a second via, both traveling from the first layer to the second layer. The first via is orthogonal to the second via in a three dimensional space. In addition, the printed circuit board may include a third via traveling from the first layer to the second layer, and the third via is orthogonal to the first and second vias in the three dimensional space.

Abstract: A grounding spring for electromagnetic interference (EMI) suppression is interposed between a heat sink and a printed circuit board (PCB). The grounding spring comprises a conductive material having an opening formed at its base through which the heat sink makes thermal contact with an electronic module mounted on the PCB. The base makes electrical contact with a peripheral surface of the heat sink, and multiple-jointed spring fingers extend from the base to make electrical contact with conductive pads on the PCB. During compression, the movement of each spring finger's tip is substantially limited to the z-axis. Accordingly, the final installed location of the tip can be precisely controlled even when the grounding spring must accommodate a wide variety of installed heights of the heat sink relative to the PCB. Preferably, the spring fingers terminate with a concave tip that is less susceptible to sliding off the conductive pads.

Abstract: A wiring module includes a wire element selected from the group consisting of coaxial cable, a twisted pair of conductors, and a strip line conductor, a dielectric enclosure surrounding the wire element, a pin end having one or more pins in electrical communication with an end of the wire element; and, a receptacle end having one or more pin receptacles, disposed within one or more slots of the receptacle end, in electrical communication with another end of the wire element.

Abstract: A method, apparatus, and a localized in-line cable filter system are provided for implementing electromagnetic cable noise suppression. The localized in-line cable filter system includes at least one electromagnetic interference (EMI) filter element connected between a cable and a current return path. An insulation displacement terminal connects the EMI filter element to the cable. The EMI filter element and current return path provide a low impedance connection toward a source.

Abstract: A method for generating spread spectrum clock signals having harmonic emission suppressions is disclosed. A set of delayed clock signals is initially generated by delaying a high-speed clock signal via a set of delay modules. Then, the leading edge of a first one of the delayed clock signals is selectively combined with a trailing edge of any one of the delayed clock signals to form a half-period spread spectrum clock signal having low harmonic emissions.

Abstract: A portable ionizer is arranged for generating ionized air in an area of a user's fingers. The portable ionizer includes a battery-powered oscillator coupled via a high voltage conversion circuit to a positive electrode and a negative electrode for generating positive and negative ions. A fan positioned near the positive and negative electrodes is arranged providing a positive and negative ion flow path to the area of the user's fingers.

Abstract: Ferrite cores are provided with rounded, convex head ends and complimentary rounded, concave tail ends. The configuration of the head and tail ends permits a reduction in gap width between adjacent cores when they are joined together into a core assembly that suppresses electromagnetic interference emitted from a cable.

Abstract: An assembly, system, and method particularly adapted for a magnetic resonator apparatus in a magnetic resonance imaging (MRI) scanning system. Provided is a restraining assembly supportable by the supporting assembly and including at least a system that is selectively operable for positioning and restraining at least a portion of the body to be imaged, thereby optimizing image quality.