Abstract: A shielded riser card assembly for reducing electromagnetic radiation from a computer enclosure is disclosed. The riser card assembly comprises a four-layer riser card having a connector adjacent its lower edge, such as a connector for an NLX system board. A cable connection socket is on the riser card a first distance away from the connector, and a plurality of traces on a surface of the riser card run between the cable connection socket and the connector. A sheet of conductive material covers the plurality of traces and is spaced a second distance apart from the surface of the riser card. At least one fastener connected is to the sheet and attached to the riser card. The fastener conductively connects the sheet of conductive material to a ground layer of the riser card. A plurality of non-conductive spacers are disposed between and in contact with both of the sheet and the riser card, for maintaining the sheet a predetermined distance away from the riser card.

Abstract: An optical transceiver module includes a body and an optical transceiver unit. The body includes a seat, a mini head cover coaxially arranged within the seat, and a tubular sleeve coaxially engaged to the seat. The optical transceiver unit includes a retaining seat, a light receiving or emitting module coaxially arranged within the retaining seat. The focus of the optical transceiver module is calibrated by proprietarily tools and then is welded with the body by laser welding. The components of the optical transceiver module are very simple. The cost can be reduced. The error is smaller and precision is high. The volume is small and thus the optical transceiver module can be used in different module.

Abstract: The present invention describes a portable radiotelephone (100) equipped with a connector having an ejection mechanism and a detect switch for an insertable module. The connector (500) is simple in design and may be constructed from a single piece of metal sheet. A module (102), which adds functionality to the portable radiotelephone, is inserted into a module slot (104) of the portable radiotelephone. When the module is fully inserted, the connector detects its presence. The connector also ejects the fully inserted module when a user desires to remove or change the module and lifts a retaining clip (502).

Abstract: A chassis discontinuity seal includes a gasket member comprising a compressible material with an interruption on its peripheral surface and a flexible sealing material spanning the interruption. The gasket member is placed on a first surface for sealing engagement with a mating closure surface. The compressible material has a first density and the interruption defines an elongated portion of the gasket having a second density, less than the first density. The gasket may be used in any shielding enclosure where it is desirable to reduce the compression force while maintaining high surface conductivity.

Abstract: A support element is described which can combine components used in Microsystems technology to form a single unit. Because of the very small dimensions of the support element, it is difficult to keep the components at different temperatures if this is required for them to operate. With the support element, this difficulty is avoided by the fact that at least one thermal insulation device, which shields the plate and the cover of the support element with respect to internal and external environments in certain regions, is provided.

Abstract: An electronic equipment enclosure has a lower housing part and a main board fixed relative thereto. A main board connector is fixed to the main board and faces the lower housing part. A sub board is inserted to a temporary attachment position within the lower housing part and faces the main board at the temporary attachment position. A sub board connector is fixed relative to the sub board and mates and connects with the main board connector. A guide rail is movable freely between a lower position and an upper position within the lower housing part. At the lower position the guide rail guides the sub board toward the temporary attachment position. By the guide rail moving from the lower position to the upper position, the sub board is caused to move from the temporary attachment position to the fully attached position.

Abstract: A fastening device for securing a data storage device (50) with a screw (52) secured thereon includes a locating plate (10) and a bracket (26). The bracket receives the data storage device therein, and the locating plate secures the data storage device to the bracket. The bracket includes first and second side panels (30, 40). The first side panel defines a slot (32). The second side panel defines a groove (42) for slidingly receiving the screw of the data storage device. The locating plate includes an engaging section (12) and an elastic section (16). The engaging section forms a latch (22) stamped toward and received in the slot of the bracket, and engaged with the data storage device. The elastic section extends from the engaging section, and provides the locating plate with elastic deformation capability so that the latch can move in and out of the slot of the bracket.

Abstract: According to the invention, an electromagnetic radiation shielding cap is located over an electronic cartridge substrate. The electromagnetic radiation shielding cap includes an electromagnetic radiation shielding plate and an electromagnetic radiation shielding rim extending around a periphery of the electronic cartridge substrate. An edge of the electromagnetic radiation shielding rim contacts a thermally and electrically conductive heat plate located on an opposing side of the electronic cartridge substrate. The heat plate and the electromagnetic radiation shielding cap jointly define an electromagnetic radiation shielding enclosure around the electronic cartridge substrate.

Abstract: An interface device for chip cards in standardized credit card format has a flat housing in likewise standardized PCMCIA format and is intended for insertion into a corresponding accommodation slot (30). The housing has a plug-in socket (12) at its front end and, extending from its rear end, an accommodation channel (32) for a chip card (18). The breadth of the housing in its edge region (A) adjoining the plug-in socket (12) is the same as that of the standardized chip card format. In order to avoid that any parts project outwardly from the accommodation slot (30) and yet to ensure a lateral guidance of the chip card (18), the housing, in its condition fully inserted in the accommodation slot (30), does not or not essentially protrude therefrom. The accommodation channel (32) terminates before the edge region (A) of the housing adjoining the plug-in socket (12).

Abstract: The present invention relates to a fixing apparatus for a mounting type card member which is capable of implementing an easier installation of an option card in a computer main chassis without using any tools. In the computer casing, there are provided a main chassis having a bracket having a fixing portion, and a motherboard engaged to the main chassis and having one or more slots, the card members having a connector portion connected with the slot and a bracket formed at one end of the same. A fixing member has a body portion which supports the card member bracket and fixing portions formed at both ends of the body portion, whereby the fixing portions are fixed to the fixing portion of the main chassis, and the body portion contacts with the bracket of the card members for thereby preventing a movement or escape of the card members.

Abstract: A printed circuit board card cage contains upper and lower perforated sheet metal plates, having a plurality of mutually opposed staggered patterns of bumps, that are configured to form guide channels for guiding printed circuit boards into engagement with respective card slot backplane connectors, thereby eliminating the need for attachment of a separate set of card guides. The patterns of card guide bumps or ‘upsets’ are arranged so as to direct, yet constrain, the travel paths of printed circuit boards from their points of insertion through grooves in rails at the front of the chassis to the backplane connectors, while providing minimal interruption of a gridwork of cooling air flow perforations through the sheet metal plates. The upsets themselves do not penetrate the sheet metal plates, and the size of the perforations are such that there are no EMI leaks, thus eliminating the need for and assembly of additional perforated plates.

Abstract: An IC card module (20) for producing an IC card (118) having at least one coil (46) and at least one chip (23) for the formation of a transponder unit, with the chip and the coil being connected together by way of a module carrier (21) which renders possible not only an electrically conductive connection between the chip and the coil, but also an electrically conductive connection with an external contact face (38) of the module carrier and the chip, wherein the IC card module (20) has a retaining device (41) which is at a distance from the external contact face (38) by an offset R and projects laterally beyond the external contact face, and also a method for producing an IC card with use of such an IC card module.

Abstract: An electromagnetic interference (EMI) shielding enclosure includes a base having a first threaded lip. A cover has a second threaded lip. The second threaded lip screws onto the first threaded lip and attaches the cover to the base. The base is provided with a first inner recessed wall and the cover is provided with a second inner recessed wall. When the cover is screwed onto the base, the first and second recessed walls form a hollow cavity within the EMI shielding enclosure. The hollow cavity has a curvilinear profile in cross section, such as an ellipsoidal profile, which improves the EMI attenuation characteristics of the EMI shielding enclosure.

Abstract: An IC card connector grounding structure has an IC card connector having a housing made of an insulating material, in which a plurality of pin terminals are held, and a shield cover mounted on the upper surface of the housing; and a circuit board having a ground circuit pattern, for mounting the IC card connector. The shield cover is grounded in contact with the circuit pattern.

Abstract: Since the transmit-receive unit of the prior art comprises the housing 21 made from a metal, the weight of the housing is large and the obtained transmit-receive unit for use in a portable telephone which is required to be light in weight becomes heavy. A transmit-receive unit comprises a housing which is made from a synthetic resin and has a conductive surface layer. Therefore, the housing is lighter in weight than a housing made from a metal of the prior art and makes it possible to provide a lightweight transmit-receive unit suitable for use in a portable telephone.

Abstract: An assembly for improving the shielding of an electronic system from electromagnetic interference radiation and electrostatic discharge includes a U-shaped conductive bracket as part of the face plate assembly secured to an edge of a circuit card. A conductive latch member is pivotably mounted on the bracket and extends through open slots in the bracket. A conductive gasket is provided on one side of each bracket to engage the opposite side of the bracket of an adjacent face plate assembly. Other conductive gaskets slidingly engage the latch member and seal the slots in the bracket.

Abstract: A shield adapted to be fit into an opening defined in a casing of an electronic device to protect the electronic device from electromagnetic interference, includes a shielding panel dimensioned to be received in the opening of the casing. The shielding panel has outward flanges contacting support flanges extending from a periphery of the opening of the casing for retaining the shield in the opening. The outward flanges of the shielding panel form at least one retaining tongue extending therefrom and receivable in a gap defined in the support flanges of the casing for securely retaining the shield in the opening.

Abstract: A plastic film capacitor shield wherein the shield is secured to an outer surface of plastic film capacitor. The shield is sufficient to protect the plastic film capacitor from excessive radiant infrared energy during infrared reflow soldering which could damage the plastic film capacitor. The plastic film capacitor shield can be composed of many different materials such as electrical grade tape, electrical grade plastic, metal tape, or epoxy. The shield can be attached to the capacitor in various ways, which includes: securing a shield to an upper surface of the capacitor; having a shield on an upper and lower surface of the capacitor, wrapping and securing a shield to the plastic film capacitor on four sides of the capacitor; securing a shield on all sides of the capacitor; and securing a combination of different shields to the outer surfaces of the capacitor.

Abstract: A cabinet is described with at least one installed electrical device has a front with a front panel with display and control elements and connecting leads from these elements into the interior of the electrical device, as well as a back with mechanisms for the attachment of electrical linking lines. In order to provide ready accessibility of the mechanisms for the attachment of electrical linking lines in such a cabinet through simple design techniques, the front panel of the electrical device is made removable, and the electrical device is mounted in the cabinet with the front panel removed and with the back forward. The front panel is held in the front region of the cabinet, and the appropriately long-dimensioned connecting leads are led through the front into the interior of the electrical device.

Abstract: A light emitting device mounting bracket includes a body and mounting hooks for fixing the bracket to a computer enclosure. The body defines a hole for mounting a light emitting device, a turret with a snap being formed at one side of the hole and a battlement being formed around an opposite side of the hole. The light emitting device is inserted into the hole by pressing on a bottom thereof, a flange of the light emitting device abutting a stopping surface of the battlement when fully inserted, and the snap of the turret engaging the bottom of the light emitting device. The mounting hooks engage with corresponding holes in a front panel of the computer enclosure, thereby mounting the light emitting device bracket to the panel of the computer system.