Abstract: A portable main frame for a computer is composed of an upper cover, a lower cover pivotally connected with the upper cover, a plurality of electrical appliances provided respectively within the upper cover and the lower cover and a handle securely provided to a side face of the lower cover, such that a user is able to carry the main frame by means of the handle. The upper cover is provided with a mother board, a speaker, a ventilation fan, a plurality of function knobs on an outer face thereof, and a pair of hooks. The lower cover is provided with at least two floppy disk drives, a pair of buckling elements, a plurality of sockets on an outer face thereof, and a power switch. The buckling elements engage the hooks to secure the covers together in a closed condition. A handle is provided between the buckling elements.

Abstract: A chassis assembly housing a plurality of modules, each module having a rigid case with four beveled corners. Small contact area guide rails in the chassis engage each module to provide a high precision alignment between high density contacts of the chassis backplane, and the back side of each module. Each module has a side lid that is snap fit for easy removal thereof and access to the circuit components housed within the module case. Each module, which is about the size of a cigarette package, can accommodate hundreds if socket contacts which mate with corresponding pins in the chassis backplane.

Abstract: A notebook computer includes physical security apparatus for locking a display and system unit together in a `clamshell` configuration. The security apparatus also prevents removal of peripheral devices and disables inputs from the computer keyboard and mouse. In some modes of operation the security apparatus also prevents powering up the computer and undocking of the computer from a docking station. A single user action results in locking the clamshell, locking the peripheral units in place and disabling the keyboard and mouse. Similarly, a user single action results in turning off the security measures (e.g., unlocking the clamshell, unlocking the peripheral units and enabling the keyboard and mouse).

Abstract: A computer which includes modular structures incorporated therein provides enhanced serviceability. In a preferred embodiment, the computer has a chassis, a lid, a front bezel, an option card module, a system board module, a drive module, and a power supply module. The lid secures the option card module within the chassis. The option card module is removable from the chassis without disconnecting fasteners, option boards, or external cables therefrom. The system board module is received in the chassis and is secured therein by the option card module. The drive module has features which enable storage media devices to be conveniently installed therein and removed therefrom.

Abstract: An electronic device system comprises a portable computer including an input surface through which information is input, a power switch manually turned on or off, a first connector electrically connected to the power switch, and an expansion station having an expansion device for expanding a function of the computer and an input section connected to a power supply. The expansion station include a main body containing the expansion device and the input section, a stand supported by the main body and removably holding the computer, and a second connector arranged in the stand and connected to the first connector when the computer is held by the stand.

Abstract: An electrical assembly that allows a plurality of electronic assemblies to be cooled by a number of fans. The assembly includes a housing which has a plenum chamber that is located between a rack chamber and a fan chamber. The rack chamber is separated from the plenum chamber by a backbone wall. The fan chamber is separated from the plenum chamber by a fan wall that is perpendicular to the backbone wall. The rack chamber contains a plurality of electronic assemblies such as hard disk drives. The fan chamber contains a plurality of individual fans. The fans induce an air flow from the rack chamber to the fan chamber through the plenum chamber. The plenum chamber provides a uniform pressure that induces an equal flow rate across each disk drive in the rack chamber. The fans are controlled by a control circuit which can detect the failure of one fan and increase the speed of the remaining fans to maintain the plenum chamber pressure.

Abstract: A personal computer chassis having increased reliability, versatility and decreased manufacturing costs. In a first embodiment, a disk drive is installed in the chassis in a first orientation for resting the computer on a desk top or in a second orientation, rotated 90 degrees from the first orientation, for resting the computer on a floor. The chassis is configured to allow interchangeable trim plates. When the trim plate is used as a base plate it has a larger periphery than when used as a side trim plate. In a second embodiment, a disk drive may be installed in the chassis without screws. Spring urged clips allow the disk drive to be easily inserted into the computer chassis, yet provide secure attachment. In a third embodiment, electrical contact is ensured for input/output port covers attached to the rear of the computer chassis. Each cover is made to bend slightly over protrusions on the computer chassis, forcing the cover into firm contact with the protrusions.

Abstract: A surface mountable flexible interconnect (10) for connecting two circuit board (30, 32) consists of a flex circuit (12) with solderable runners (14) on one side, the runners traversing the flex circuit from one end to the other. There is a solderable pad (16) at the end of each runner, and each solderable pad has a solder bump (18) fused to it. A rigid carrier ring (20) is used to hold the flex circuit in position prior to placement on the PCB. The flex circuit is formed into a U-shaped loop (26), and the loop is aligned to the carrier so that the loop is situated in an aperture (24) in the carrier. The solder pads lie directly under the carrier ring and face away from it. An adhesive (22) bonds the flex circuit to the carrier ring.

Abstract: A hard disk converting drawer structure including a drawer and a fixing seat. A pull handle is back and forth slidably disposed at the front end of bottom side of the drawer. A transverse beam is disposed between two balance levers of the pull handle for back and forth pulling an auxiliary lever to press and close/open a touch switch. When the touch switch is pressed and closed, the auxiliary lever is forced by a leaf spring disposed on one side to retract the pull handle to a hidden position. When the touch switch is bounded open, the pull handle is pushed and ejected for a user to easily pull out the pull handle. When pulling the pull handle, the auxiliary lever is driven to push a stopper block projecting from one side of the fixing seat so as to smoothly draw out the drawer from the fixing seat for taking out the hard disk.

Abstract: A casing for computer equipment, the casing comprising first and second leaves for mounting the computer equipment, the leaves being hinged together so as to be movable between a folded position in which the first leaf overlies the second, and an open position; and a base to which the leaves are movably secured so as to allow the second leaf to slide relative to the base. In the open position of the leaves part of the base extends under the first leaf so as to provide a support to resist tipping movement when pressure is applied to the first leaf.

Abstract: A socket/adapter assembly includes a insulative support member for supporting terminals soldered to connection regions of a leadless integrated circuit (IC) package, a printed circuit board, or another intercoupling component. The insulative support member is removable/replaceable from the terminals to allow visual inspection of the solder connections between the terminals and connection regions. The terminals of the socket/adapter assembly are retained by the insulative support member before the connections soldered. The insulative support member is then removed so that the individual solder connections can be examined for defective solder joints and repaired, if necessary.

Abstract: A magnetic disk apparatus includes a link mechanism constructed by at least a flexible portion and a hard member and one end of the link mechanism is attached to a fixing unit and the other end is attached to a hard disk assembly so that the flexible portion of the link mechanism is located on a straight line which passes through the center of gravity of the hard disk assembly, thereby having a sufficient rigidity for a disturbance in the straight line direction which acts on the HDA (Hard Disk Assembly) and reducing a natural frequency of the HDA for the disturbance in the rotating direction of the HDA.

Abstract: Metal, normally gold or platinum, is printed, and is adhered by a glass frit, on the top and/or bottom surfaces of a multi-layer laid-up green ceramic wafers containing typically up to 16 layers and 800+ separate devices, typically 800+ monolithic, buried-substrate, ceramic multiple capacitors. The wafer is diced, and the multiple ceramic capacitors each with its patterned surface metal are co-fired. The integrally formed, top and bottom surface, conduction traces connect similarly formed pads, typically disposed in a "pin-grid" pattern, to later-added side traces or conductive castellations that connect to the electrodes of multiple buried-substrate capacitors. The pads are precisely located, and extend over such ample areas, to support the stable surface mounting, and the reliable electrical connection of, diverse external electrical circuits and components.

Abstract: A cabinet is provided for housing a plurality of electrical chassis. Each one of the chassis contains electronic devices and components, such as for example, a magnetic storage disk drive. The cabinet has a plurality of shelves adapted to receive one of the chassis. The shelves are provided by a cage-like structure. More particularly, each shelve has a pair of laterally spaced, electrically conductive wires upon which laterally spaced bottom portions of chassis rests when inserted into the cabinet. Wire struts are mechanically and electrically connected transverse to the laterally spaced shelve wires. A resilient, electrically conductive V-shaped clip is provided. The vertex of the V-shaped clip is shaped to attach to the wire strut with one side of the clip projecting into the bottom portion of the chassis receiving space provided by the shelve, and the other side of the clip projecting into the upper portion of a chassis receiving space provided by a lower shelve.

Abstract: A portable computer capable of operating on a flat surface or on an operator's palm and forearm, including a main body, a display on an upper side of the main body for displaying image or character data or both, a cover which covers the display and opens rotatably to a position where an upper side of the cover touches a bottom side of the main body, a riser formed when the cover is opened which raises the main body to a position so to form an angle relative to the flat surface, when supported on the flat surface, and for stabilizing the computer when held by the operator on the operator's palm and forearm. The cover opens and closes with the assistance of first and second hinge pins. An edge portion of the cover and a stand plate extend in generally opposite directions about the first hinge pin when the cover is closed, but are adjacent to one another when the cover is opened.

Abstract: A computer main circuit board rack structure including a main circuit board rack sink disposed on a computer housing and an upper and a lower rails formed respectively at upper and lower ends of the rack sink. A drawable computer main circuit board rack is inserted into the computer housing through the upper and lower rails of the rack sink. The computer housing is formed with several engaging holes at an end near the main circuit board rack sink and several V-shaped leaf springs are disposed in the upper rail. The main circuit board rack is disposed with several engaging hooks for engaging with the engaging holes of the computer housing so as to resiliently secure the main circuit board rack on the computer housing without using any screw or rivet. The computer main circuit board rack can be conveniently drawn out of the computer housing without using any tool.

Abstract: Disclosed is a portable computer having a separable keyboard which includes a base housing, a keyboard spread over the base housing, and a lid that can be folded over the base housing. The keyboard is separated into two sections and a corner of each keyboard section is hinged with the base housing. By a keyboard spring, the two keyboard sections are biased to be rotated together. After the opening of the lid, a user may manually rotate the keyboard halves apart to one of several discrete angles. When the user is finished working on the computer, the user may close the lid. As the user doses the lid, the separated keyboard halves are automatically rejoined without any additional effort by the user. In the corners of the keyboard sections, opposite to the right and left of the corner in which the hinge portion is formed, are formed a plurality of lever grooves which allow the keyboard sections to be maintained in a spread-apart state.

Abstract: An add-on device (DHD) for disk drives (D) for a multidisk system containing a plurality of drawers (T) includes a metal base support (S) for a disk drive (D), an opening (O) into which an external connector (CN) of the device is inserted, a mechanism for inserting, extracting and locking (PO, R, R1-R2) the device in a selected slot of the drawer, air passages for ventilating the disk drive, a first printed circuit board (CCE) for interconnecting the disk drive with its external environment, and a second board (CCT) connected to the first printed circuit board for supporting DC voltage conversion functions.

Abstract: A housing is provided for a radio device, such as a portable cellular telephone, in a housing arrangement which includes an integral electromagnetic shield. A thin conductive film is applied to an interior or exterior surface of one or more shell-type housing parts. This thin film may be applied during an injection molding process to form the shell-type parts. The shell-type parts are shaped to define a cavity for encasing electronic components of the radio device, and for securably receiving an associated circuit board. The thin film is disposed to extend over a supporting edge of the corresponding housing part so that circuit board grounding surfaces are in low-resistance contact with the shielding film. The film thereby provides the housing with an integrated shielding function against electromagnetic radiation.

Abstract: A robbery-proof mechanism for a vehicle mounted electronic apparatus wherein a cover for covering the electronic apparatus is accommodated in the upper space of the electronic apparatus and can be driven by a small scale drive mechanism without moving the electronic apparatus.