Abstract: A reader-to-writer offset for a head positioned over a track on a disc in a disc drive having a plurality of tracks is generated by using two iterations. A first iteration is used to determine a fine-tuning range that is used for a second iteration. The first iteration uses coarse steps of the reader across the track pitch to roughly determine OTC boundaries (which are used as the fine-tuning range). The fine-tuning range is determined by locating the point before the first valid reading (e.g., a VGA reading or BER reading with a rate that is less than the BER threshold) and by locating the point after the last valid reading. The second iteration uses fine steps of the reader across the track pitch to determine the actual OTC boundaries. The OTC boundaries are the first valid reading and the last valid reading that are made using the fine steps.

Abstract: A position detection means generates a position error signal corresponding to a current position of a head, a position control means generates a position control signal from the position error signal, a voltage detection means detects a voltage signal generated when driving an actuator by a driving means, a disturbance estimation means generates a disturbance estimation signal from a driving signal and the voltage signal, and a correction means outputs the driving signal from the disturbance estimation signal and the position control signal.

Abstract: A read/write head microactuator includes first and second insulating deposits that are flat, spaced apart by an air gap, and laterally movable responsive to a microactuator electrical drive current. First and second flat, interdigitated drive electrode deposits are deposited on the first insulating deposit. A flat, digitated sense electrode deposit is deposited on the second insulating deposit. The sense electrode deposit provides a relative position output. The sense electrode deposit faces both the drive electrode deposits across the air gap.

Abstract: A first estimator 13 estimates the position of a head based on a VCM driving signal u1 and a voltage signal Va output from a VCM 6 to output a first head position estimation signal x1est. The first estimator 13 estimates the disturbance acting on a head supporting mechanism 8 to output a disturbance estimation signal &tgr;dest. A second estimator 15 estimates the displacement of the head based on a control signal c2 for a fine adjustment actuator 7 to output a displacement estimation signal x2est. The first head position estimation signal x1est and the displacement estimation signal x2estare added together to obtain a second head position estimation signal xest. A position error signal e is generated using a head position signal x obtained by detecting the servo information and the second head position estimation signal xest. A disturbance compensator 10 synthesizes a VCM control signal c1 with the disturbance estimation signal &tgr;dest to generate the VCM driving signal u1.

Abstract: In a positioning control apparatus, a distance between an actual position at which absolute values of N and Q head positioning signals whose amplitudes vary cyclically in accordance with a position of a magnetic head and whose phases are different from each other by 90 degrees are equal to each other and an optimum position at which the absolute values of N and Q head positioning signals should be equal to each other is calculated from a deviation of an actual position of the magnetic head with respect to a target value of zero which deviation is obtained when controlling the magnetic head to be positioned at a boundary between ranges in which the N and Q head positioning signals have respective linearities so that the absolute values of N and Q head positioning signals become equal to each other.

Abstract: A magnetic disk drive having a magnetic disk, a spindle motor for rotating the magnetic disk, a magnetic head slider for recording or reproducing data onto or from the magnetic disk and a housing. A control circuit system is provided for controlling the head slider so that the head slider is positioned on the magnetic disk plane when the magnetic disk is rotating, and the head slider is saved to outside the magnetic disk plane when rotation of the magnetic disk is stopped. A lubricant supplier is provided for supplying lubricant to the surface of the magnetic disk. The lubricant supplier contains at least a perfluoropolyether compound having any one of an alcohol group, a cyclic ether group, and an alkyl-ester group at its terminal position as a lubricant, and the lubricant contains the perfluoropolyether compound having a molecular weight sufficient to enable lubrication and no greater than 4000.

Abstract: In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, the present invention discloses a composite magnetic head characterized in that part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.

Abstract: Applicants disclose a method for producing a magnetic transducer with a inductive write head having a multilayer coil with a high aspect ratio and a short yoke. A damascene process is used for two coil layers and a conventional process for the third coil layer. The process of the invention allows a seed layer for the coil to be deposited on the side walls of the trenches for the first and second coil layers. In one embodiment the seed layer for the coil is preceded by an adhesion layer.

Abstract: One of the major requirements for higher frequency extendability is to reduce yoke length and inductance in order to have fast saturation. This has been accomplished by using a design that provides a cavity in the lower pole piece inside which is located at least two coils, one on top of the other. A process for manufacturing the device is also described.

Abstract: An electroplated magnetic thin film consisting of an electroplated film of Fe—Co alloy containing Fe by an amount of 52-86 wt % and having a highly packed fine crystal grain structure, a flat and glossy surface, a high saturation magnetic flux density not less than 2.1 T, a low coercive force of 5-10 Oe, and being particularly suitable as a pole portion of a thin film magnetic head is proposed. The electroplated magnetic thin film is deposited on a substrate by an electroplating process with a pulsatory current or direct current having a current density of 3-120 mA/cm while using an electroplating bath containing one or both of sulfate salt and hydrochloric salt serving as supply sources of Fe ions and Co ions, saccharin sodium serving as a stress relaxation agent by an amount not less than 1 g/l, boric acid as a pH buffer agent, ammonium chloride as an electrically conductivity salt, and sodium lauryl sulfate as a surfactant.

Abstract: A magnetic head having a heat dissipating structure formed of a thermally conductive material that includes a top heat transfer sheet overlaying a second portion of a writer conducting coil; a bottom heat transfer sheet formed in a back region of a bottom pole layer, displaced from a back side of a bottom writer pole, and underlaying the second portion of the writer conducting coil; a first side heat transfer member formed in a coil layer adjacent a first side of the writer conducting coil; and/or a second side heat transfer member formed in the coil layer adjacent a second side of the writer conducting coil.

Abstract: A disc cartridge includes a disc type recording medium housed for rotation in a flat housing formed by a pair of metal shell halves. The housing is provided with an opening for giving a recording/reproducing head of a disc driver access to the disc type recording medium. At least one of the metal shell halves is provided along its periphery with an erected wall which is formed by bending a part of the edge of the shell half and is bonded to the other shell half and a V-shaped groove which keeps the bending angle of the erected wall at a predetermined angle is integrally formed on the shell half.

Abstract: A desired pattern of elements, including an element having a slant side intersecting a recording track, is depicted on a resist layer on a disc-like substrate. The element is depicted by causing an electron beam whose beam diameter is smaller than the minimum width of the element to scan the resist layer so that the trajectory of the beam center of the electron beam on the resist layer draws a periodic waveform traveling along an axis parallel to the recording track. The periodic waveform is drawn from a starting point which is on a valley or a peak of the waveform. Angles &thgr;3, &thgr;1 and &thgr;2 satisfy the relation &thgr;1<&thgr;3<&thgr;2.

Abstract: A magnetic sensor comprises magnetoresistive elements and permanent magnet films, which are combined together to form GMR elements formed on a quartz substrate having a square shape, wherein the permanent magnet films are paired and connected to both ends of the magnetoresistive elements, so that an X-axis magnetic sensor and a Y-axis magnetic sensor are realized by adequately arranging the GMR elements relative to the four sides of the quartz substrate. Herein, the magnetization direction of the pinned layer of the magnetoresistive element forms a prescribed angle of 45° relative to the longitudinal direction of the magnetoresistive element or relative to the magnetization direction of the permanent magnet film. Thus, it is possible to reliably suppress offset variations of bridge connections of the GMR elements even when an intense magnetic field is applied; and it is therefore possible to noticeably improve the resistant characteristics to an intense magnetic field.

Abstract: A magnetic sensor includes a spacer having at least a nonmagnetic metal layer inserted between the upper shield layer and the longitudinal bias layers or between the upper shield layer and the longitudinal bias layers plus the magnetoresistive film, the shortest distance between the longitudinal bias layers and the free layer of the magnetoresistive film is set smaller than the shortest distance between the longitudinal bias layers and the upper shield layer, and this arrangement ensures that the amount of magnetic flux entering the magnetoresistive film from the longitudinal bias layers is larger than that absorbed by the upper shield layer, thus realizing a magnetic sensor whose Barkhausen noise is suppressed.

Abstract: The invention provides a magnetoresistive element in which the pinned magnetic layer includes at least one non-magnetic film and magnetic films sandwiching that non-magneticfilm, and the magnetic films are coupled with one another by magnetostatic coupling via the non-magnetic film. This element has an improved thermal resistance. Furthermore, the invention provides a magnetoresistive element in which the pinned magnetic layer is as described above. The magnetic films can be coupled with one another by magnetostatic coupling or antiferromagnetic coupling generating negative magnetic coupling. In this element, the magnetic field shift is reduced. Furthermore, the invention provides a magnetoresistive element in which at least one of the magnetic layers sandwiching the intermediate layer includes an oxide ferrite having a plane orientation with a (100), (110) or (111) plane. A magnetic field is introduced in a direction of the axis of easy magnetization in the plane.

Abstract: A charge-perpendicular-to-plane self-pinned magnetic tunnel junction sensor is provided. Additionally, a disk drive using a charge-perpendicular-to-plane self-pinned magnetic tunnel junction sensor as the read element is provided.

Abstract: A magnetoresistive element includes a multilayer film configuration including: a tunnel insulation layer; and a pair of magnetic layers that are laminated with the tunnel insulation layer interposed therebetween. A resistance value of the magnetoresistive element varies with a relative angle between magnetic orientations of both of the magnetic layers, and at least one of the magnetic layers includes a magnetic film having a thermal expansion coefficient not greater than a value obtained by adding 2×10−6/K to a thermal expansion coefficient of the tunnel insulation layer. The thus configured magnetoresistive element can exert excellent thermal stability. The use of such a magnetoresistive element can realize a magnetic head, a magnetic memory element and a magnetic recording apparatus with excellent thermal stability.

Abstract: An over-voltage protected integrated circuit is provided, which includes a discharge node, an input-output pad, a signal trace, which is coupled to the input-output pad, and a pair of back-to-back diodes, which is coupled between the first signal trace and the discharge node.

Abstract: A protection device for a transformer, particularly for supplying power to lamps, the transformer including a primary electric circuit that interacting with at least one secondary electric circuit, comprising an electronic control unit that detects the intensity of the electric current that circulates in the primary circuit as a function of the secondary circuit and compares it with a previously stored threshold value, the control unit deactivating the transformer after a preset number of readings of the electric current intensity that are incompatible with the threshold.

Abstract: The present invention is directed to a protective device that includes a plurality of line terminals configured to be connected to an electrical distribution system, and a plurality of load terminals configured to be connected to at least one load. The device includes a fault detection circuit coupled to the plurality of line terminals and the plurality of load terminals. The fault detection circuit is configured to detect at least one fault condition. A power interruption circuit coupled to the fault detection circuit, the power interruption circuit including a set of movable contacts configured to decouple the plurality of line terminals from the plurality of load terminals in response to the fault detection circuit detecting the at least one fault condition. A reset mechanism is coupled to the power interruption circuit and configured to actuate the movable contacts to re-couple the plurality of line terminals to the plurality of load terminals. A lock-out mechanism is coupled to the reset mechanism.

Abstract: Fl over-voltage crowbar provides lightning surge and ESD protection. The crowbar has a clamping transistor, which is driven by a mirror-amplifier. When an input surge voltage is higher than the voltage of a Zener diode, the mirror-amplifier will be switched on and generate an amplified voltage. The amplified voltage works together with a speed-up capacitor easily to switch on the clamping transistor. The mirror-amplifier has an n-transistor and two p-transistors, which provide sufficient headroom for the turn-on of a clamping transistor. The over-voltage crowbar of this invention rapidly drives the clamping transistor to low impedance, thereby achieving a higher sustenance rating for lightning surge and ESD in the integrated circuit.

Abstract: An integrated circuit with electrostatic discharge (ESD) protection is disclosed. The integrated circuit with electrostatic discharge protection comprises an inductor and a capacitor which can cancel the reactance induced by electrostatic discharge protection elements at an operating radio frequency. By choosing the combination of ESD protection elements, the inductor and the capacitor with proper equivalent reactance values, the mismatch caused by ESD protection elements can be eliminated at an operating radio frequency.

Abstract: In order to compensate fluctuation of the characteristics of a field effect transistor and detect capacitive change of a capacitive element for measurement with high precision, the electronic circuit of the present invention comprises; the transistor Tr5 outputting current in response to voltage change, which is supplied from the variable voltage source Vdd to the current control terminal by capacitive coupling via the capacitive element for measurement Cs; and the constant current source 22 for outputting reference current; and the current detection circuit 23 for detecting output current outputted from the transistor Tr5. After making the reference current pass through the transistor Tr5 and compensating fluctuation of threshold voltage, the switching element Tr2 is turned “OFF” so as to make the current path between the gate and the drain of the transistor Tr5 to be non conductive.

Abstract: Electrostatic discharge (ESD) protection structures utilizing bipolar conduction are disclosed. The structures each include a parasitic p-n-p bipolar transistor (102); some of the disclosed embodiments include this transistor within a silicon-controlled-rectifier (SCR) type of ESD protection structure. A p+ doped region (116, 216, 316, 416, 516) is disposed at a surface of an n-well (112, 212, 312, 412, 512) overlying a location (115, 215, 315, 415, 515) that receives both the n-well (112, 212, 312, 412, 512) implants and also the p-well (213, 313, 413, 513) implants. Preferably, the well implants are designed to provide retrograde doping profiles. The number of net impurities is reduced, and thus the base Gummel number is lowered, at the compensated well portion (112′, 212′, 312′, 412′, 512′), resulting in improved gain for the vertical bipolar device.

Abstract: A power system bus total overcurrent system is used with a part of a power system which includes two buses and first and second power line portions which extend between them. A protective relay system includes protective relays for each of the first and second power line portions, located near the two buses, wherein the relays determine the total current into and out of each bus. The bus total overcurrent system includes first and second communication lines between each pair of relays and another communication line which extends between the first and second communication lines. In a current balance arrangement, the relays measure difference current using the same communication line arrangement between the two pairs of relays to determine a fault condition. Fault determinations are made in each case by the protection algorithms from total and difference currents.

Abstract: The invention relates to a drive control for an electric drive with a secure electrical separation of power element and control element. The aim of the invention is to reduce the number of components such as optic couplers and buffer amplifiers between the power element and a control electronics. To this end, a suitable electrical transformer (U) is inserted in a digital communication interface (K) between the control unit (R) and the control electronics (A) for the purpose of providing a secure electrical separation. To make use of a transformer (U) possible, a non-zero frequency encoding, for example a Manchester encoding, is carried out. Alternatively, an Ethernet physics can be used to provide a suitable communication interface. The transformer electrically insulates the two communication paths from each other that are provided in an Ethernet physics and preferably has little coupling capacity and a low attenuation factor.

Abstract: A multi-output electric power source device has at least two channels for producing a constant voltage and a constant voltage from a single input voltage. Each channel is provided with a switching regulator in the input stages thereof and a series regulator in the next stage thereof. An over-heat detector circuit is provided in common for both channels. When the over-heating of either one of switching transistors in the channels is detected, the switching regulators turn off both switching transistors thereby to interrupt both output voltages from being supplied to an external circuit. When an over-voltage is detected, series regulators also interrupt the output voltages from being supplied to the external unit.

Abstract: An electrical circuit is provided for detecting direction of a current flowing on a line, in particular of a bus of a test equipment. The circuit comprises a sense resistor coupled within the line. A first comparator is connected with its positive input to the line on one of the two sides of the sense resistor and with its negative input connected to the line on the other one of the two sides of the sense resistor. A second comparator with one of its inputs is connected to the line on one of the two sides of the sense resistor and with the other one of its inputs is provided with a voltage divider. Said first comparator provides an output signal depending on the direction of the current flowing on the line, and said second comparator provides a second output signal defining whether the first output signal is valid or not.

Abstract: A controlled rectifier bridge includes a plurality of segments each having an element responsive to a control signal, and an output having a voltage, a first current and a second current. Sensors provide sensed current values from first and second output currents from the bridge. A routine determines if the sensed current values are greater than a predetermined value. A regulator outputs the control signals to the segments in order to control current conduction within the segments. A routine determines if a circuit interrupter is open or if current is not flowing between bridge inputs and the corresponding alternating current phases. A routine disables the control signals to pairs of the segments when the sensed current values are greater than the predetermined value, and when the circuit interrupter is open or when current is not flowing between the inputs and the corresponding alternating current phases.

Abstract: A circuit for applying power to mixed mode integrated circuits in a predefined sequence. The circuit includes a first circuit powered by a first voltage and a second circuit powered by a second voltage that is less than the first voltage and having the second voltage coupled to the first circuit. The circuit for applying power to mixed mode integrated circuits includes[[,]] a modified [[IO]] I/O cell of the second circuit. The modified [[IO]] I/O cell has a driver transistor including a back gate terminal, a gate terminal that is driven by the second circuit, a source drain terminal that is coupled to a first circuit signal, and a drain source terminal that is coupled to the second power supply voltage. The circuit for applying power to mixed mode integrated circuits further includes[[,]] a controller circuit coupled to the first voltage and the second voltage supplied as controller circuit inputs.

Abstract: A digital instrumentation system has a power supply means 36 which supplies power to at least one instrument 3 located in a hazardous area 5. Also located in the hazardous area 5 is power limiting means 27 for limiting the power supplied to each instrument 3.

Abstract: A DC to DC controller for controlling an inrush current from a DC to DC converter to a battery system having an internal isolating switch. The DC to DC controller is configured to control the DC to DC converter based on a state of the internal isolating switch. If the switch is open, the DC to DC controller adjusts the output voltage of the DC to DC converter to a predetermined voltage level. Based on the value of such voltage level, in rush current from the DC to DC converter to the battery system can be reduced or eliminated when the isolating switch changes from an open state to a closed state. An electronic device including such a DC to DC controller is provided. Related methods for controlling inrush current are also provided.

Abstract: A battery charging circuit is disclosed that includes protection circuitry and/or adapter current limit offset circuitry. The protection circuitry is operable to reduce or eliminate an overvoltage and overcurrent condition generated by a charge controller when a charging path is an open circuit, for example, when a battery is disconnected from the charging path. The adapter current limit offset circuitry is operable to generate an offset signal to an adapter current signal utilized by a charger controller.

Abstract: An ignition system for a vehicle includes a distributor having with a Hall Effect stator assembly and ignition module formed preferably as a thick film integrated (TFI) module, which receives a spark output (SPOUT) signal from an electronic control assembly (ECA). The ignition module includes a microprocessor for generating a control signal to an ignition coil and switching ON and OFF the primary current therein. A temperature sensing circuit is operative with the microprocessor for reducing the duty cycle or overall current or power as applied to the control signal from the TFI ignition module to the ignition coil and reducing the heat generated by the TFI ignition module when a temperature threshold for the TFI ignition module has been exceeded.

Abstract: An ignition system for a vehicle includes a distributor having with a Hall Effect stator assembly and ignition module formed preferably as a thick film integrated (TFI) module, which receives a spark output (SPOUT) signal from an electronic control assembly (ECA). The ignition module includes a microprocessor for generating a control signal to an ignition coil and switching ON and OFF the primary current therein. A temperature sensing circuit is operative with the microprocessor for reducing the duty cycle or overall current or power as applied to the control signal from the TFI ignition module to the ignition coil and reducing the heat generated by the TFI ignition module when a temperature threshold for the TFI ignition module has been exceeded.

Abstract: A support actuator 20 comprises an electro-magnet 21 having an input current 22, provided through a current controller 23, and which is arranged to generate a magnetic field 24 having a variable intensity proportional to a variable current 25 supplied by the controller 23. The intensity of the field 24 is controlled to ensure that the magnet 21 is separated from a support armature 26 arranged to carry a load by an operational gap 27.

Abstract: An apparatus for and method of controlling multiple electronically controlled components (101) utilizes a controller (103) that controls one of the components (101A). A control interface (211) replicates the control signal (201) generated by the controller (103) for each additional component (101B through 101E), such that the replicated signal bears significant resemblance to the original control signal with respect to current, voltage, and pulse width. The replicated signals are provided to the additional components (101B through 101E) at substantially the same time as the control signal (201) is provided to the first component (101A).

Abstract: Techniques for easy utilization of a plurality of mutually substitutable kinds of electronic circuit components. A mounting program preparing computer arranged to prepare mounting-program-related data, so as to correlate each component mounting position on a printed-circuit board with an electronic circuit component or a group of different electronic circuit components, on the basis of CAD data wherein the mounting position is correlated with part ID data, and group data indicative of the group of the different electronic circuit components. The computer is further arranged to prepare a mounting program indicative of an order of mounting of the components, and mounting data relating to positioning of the electronic circuit components on a table of a component supply table, and supply electronic circuit component mounting machines with the prepared mounting-program-related data, mounting program and mounting data.

Abstract: The invention relates to a housing (1) comprising an electrically conductive cup (2), which comprises a wall (3) and a bottom (4), and an electrically insulating envelope (5), which covers the exterior of the cup (2) and features an opening (6) on the bottom side that is smaller than the bottom (4) of the cup (2), and a fill element (7), which is effectively heat-conductive and is disposed within the opening (6), and a cover element (8), which is electrically insulating and covers the bottom (4) of the cup (2) and overlaps the envelope (5). Furthermore, the invention relates to an electrolytic capacitor comprising a rounded coil (10) and the housing (1), as well as a housing structure and a structure comprising an electrolytic capacitor. Through the use of a flat cup bottom in connection with a fill element (7) and a cover element (8), improved heat dissipation from the housing (1) can be achieved, as well as a reduction in the cost of manufacturing the cup (2).

Abstract: A notebook PC is provided with an expansive ten-key pad as a function-expanding pad which can be set to or removed from an accepting portion formed adjacently to a keyboard of a body portion. The notebook PC is also provided with a PDA cradle pad as a function-expanding pad which can be set to or removed from a tray to be taken out from a side portion of the PC. The expansive ten-key pad and the PDA cradle pad are provided with a connection terminal common to the body portion and moreover, a common connection terminal is provided in the accepting portion and the tray. It is possible to change the setting positions of the expansive ten-key pad and the PDA cradle pad which are function-expanding pads in accordance with a user's desires. It is also possible to utilize other funciton-expanding pads with the accepting portions to provide many other types of functions on the PC.

Abstract: A computing device is described. The computing device can include a base portion and a lid portion connected to the base portion. The lid portion is configured to be deployed from a closed position to an open position. The computing device can also include a locking mechanism for locking the lid portion in the closed position. The computing device can further include multiple user-engagable input mechanisms, at least some of the multiple input mechanisms being accessible when the lid portion is in the closed position and which can be manipulated by a user to unlock the locking mechanism.

Abstract: A computer enclosure includes: a bottom casing (20); a top casing (10) defining an opening (12) and detachably attached to the bottom casing; and an engaging device (40) including an upper unit (50) mounted below the opening of the top casing, and a lower unit (60) mounted to the bottom casing. The upper unit includes a bracket (51), and first and second levers (54, 56) pivotably mounted in the bracket. The first lever has first and second ends (542, 544). The lower unit of the engaging device includes parallel driving plates (64) defining generally U-shaped cutouts (640). When the first end of the first lever is rotated downwardly or upwardly, the second end of the first lever slidingly drives against the driving plates at rear or front extremities respectively of the U-shaped cutouts, thereby respectively attaching or detaching the top casing to or from the bottom casing.

Abstract: The invention pertains to a chip module 20 and a method for producing a chip card module that comprises a chip module with a chip carrier 21 and a chip 22 that is contacted with strip conductors 25, 26 of the chip carrier, wherein the chip carrier comprises a flexible carrier material and the strip conductors respectively extend over the length of the carrier substrate, and wherein the chip carrier 21 contains two longitudinal regions 35, 36 of identical length which are offset relative to one another in the longitudinal direction of the chip carrier and respectively assigned to one strip conductor 25, 26.

Abstract: An electrical floor access system (100) is provided so as to be accessible to the electrical equipment of an office system (50). The electrical system (100) includes a number of access floor modules (102) jpositioned beneath an access floor (30). The electrical system (100) also includes junciton block cables (104) and junction blocks (108) which can be connected the junction block cables (104). The junciton blocks (108) serve to provide electrical interconnection and mounting for electrical receptacles and similar devices for interconnection with electrical equipment. The access floor modules (102) are substantially interchangeable with each other, and the junction block cables (104) are substantially interchangeable with each other so as to provide an electrical system as a modular system adapted to be sized and configured in a manner which does not require any substantial number of different types and/or sizes of cables and other electrical equipment.

Abstract: In a chassis for holding drawers containing computer components or the like, accurate alignment of each drawer in its corresponding slot is provided by a plurality of alignment features along an edge of an opening for the drawer. Mating alignment features are provided in each drawer, that engage with the alignment features on the chassis to ensure alignment of the drawer in the chassis. Various different types of alignment features are provided. Mating alignment features may additionally be provided along an opposing edge of the chassis and drawers. After being aligned, the drawers may be fastened to the chassis in a conventional fashion.

Abstract: A layered interface device comprises an interface box and a supporter. The interface box is connected to a computer or other similar system. The supporter is connected to the interface box. The supporter includes at least one arm. The arm has two connecting portions. The first connecting portion serves to be connected to the interface box. The second connecting portion is connected to a respective supporter of another interface box. Thereby, a plurality of interface devices are assembled by using respective supporters so that the interface boxes connected to the respective supporters are overlapped with one another.

Abstract: A cable box of the present invention can safely avoid affecting information transmission cables housed in lower layers, while preventing deformation of synthetic resin inner tubes even in case of extraordinarily high temperature caused by long duration of high load on a power cable.

Abstract: A variable gap thermal interface is coupled with a cold or hot plate, forming a low thermal resistance connection between an electronic device module containing at least one heat generating electronic device and a rack or other structure. The variable gap thermal interface and the cold or hot plate are provided in a configuration to allow quick-disconnect of the electronic device module from the rack, allowing for a wide dimensional tolerance between the module and the rack while maintaining a reliable thermal connection. An embodiment including a plurality of server modules within a server rack in conformance with the present invention, allows the replacement of server modules while powered without any disconnection or reconnection of hoses to cold plates used in cooling the server modules, thus greatly reducing the probability of leaks and resulting damage to the system.

Abstract: A cooling system for a hinged portable computing device is provided having a first passive heat transfer device is carried within a first housing portion of the computer and a second passive heat transfer device that is carried within a second housing portion of the portable computer. A hinge structure interconnects the first and second housing portions for pivotal movement relative to one another, where the hinge structure includes a heat conductive first gudgeon having a pintle and a thermal interface block. The thermal interface block is disposed in the second housing portion and connected in thermal communication with the second first passive heat transfer device. A heat conductive second gudgeon is also provided having a journal and a thermal interface block.