Abstract: There is proposed a hologram recording method that includes: generating signal light by superimposing a periodic intensity distribution or phase distribution on an intensity distribution of light that expresses binary digital data as a light/dark image; Fourier transforming the signal light; illuminating Fourier transformed signal light and reference light simultaneously on an optical recording medium; and recording the signal light as a hologram.

Abstract: A write head, which is positioned by reading a servo pattern with a read head, writes data on even tracks of a magnetic disc, and then writes data on odd tracks. Then a read head is positioned on a read position and sequentially reads all the written data. As a result, it is decided whether a read error has occurred. Further, positional deviation of the tracks, in which the read error occurs, is measured.

Abstract: Provided are a read channel, storage drive and method using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal. A read channel is incorporated in a storage device to process signals read from a storage medium. An equalizer uses coefficients to equalize input read signals to produce equalizer output signals. A detector processes adjusted equalizer output signals to determine output values comprising data represented by the input read signals. An equalizer adaptor is enabled to provide a reference measured error and coefficients used to produce the adjusted equalizer signals that are associated with the reference measured error. The equalizer adaptor computes new equalizer coefficients to use to equalize input read signals that result in a new measured error from the detector and computes a new measured error for the new equalizer coefficients.

Abstract: In an automated library, data cartridges, such as magnetic tape cartridges, are stored in storage cells or shelves and accessed by data storage drives. An accessor with a gripper transports cartridges between storage cells and storage drives. Cartridges on the library floor may damage the accessor. A cartridge sensor is provided and positioned to detect cartridges on the floor of the library. The sensor may be mounted to the base of the accessor, may be mounted to the gripper, or one or more sensors may be mounted proximate to the floor of the library. If the library includes more than one library frame, a sensor may be mounted proximate to the floor of each of one or more of the frames, thereby allowing for the location of a dropped cartridge to be identified.

Abstract: According to one example a linear translation stage is provided. The linear stage includes a first portion (e.g., a base portion) and a second portion (e.g., a stage portion) configured for relative translation with respect to each other. One of the first portion or the second portion has a coil associated therewith and the other of the first portion or the second portion has a magnetic source associated therewith. The magnetic source may include one or more magnets to produce a magnetic field that generally encompasses the coil such that current through the coil causes a force on the coil, thereby causing translation of the first portion relative to the second portion.

Abstract: An information storage apparatus includes a magnetic head having a magnetic pole end that is controllable so as to project, a recording medium for recording and/or reproducing data, a protrusion provided on a surface of the recording medium, the protrusion being used for measuring a flying height of the magnetic head, and a flying-height adjustment controller that adjusts the flying height of the magnetic head by controlling the amount of projection of the magnetic pole end of the magnetic head on the basis of the amount of projection obtained when the magnetic pole end of the magnetic head comes into contact with the protrusion.

Abstract: Provided are a voice coil motor (VCM) driving method for an HDD, related head unloading apparatus and recording media suitable for implementing the driving method. The method of driving a VCM to park a head on a ramp in the HDD includes; driving the VCM using a first driving voltage until the head moves to a first position; and thereafter driving the VCM using a second driving voltage higher than the first driving voltage during a first time period sufficient cause the head to rise along a first incline of the ramp.

Abstract: A head position is corrected based on track deviation information read from a storage unit that stores the information on track deviation due to an abnormal pitch of a servo track. At the time of writing data, a track on which a read head R is to be positioned, which is determined based on correction of core deviation of a write head, is further corrected based on correction of track deviation information.

Abstract: A shock absorbing device for an enclosure. The shock absorbing device including a shock absorbing frame. The shock absorbing frame includes an inner surface coupled adjacent to the enclosure and an outer surface. The shock absorbing device also includes a plurality flexible shock bumpers spaced apart from each other and formed on the outer surface of the shock absorbing frame. Each flexible shock feature includes a mount feature.

Abstract: A hard disk drive includes a base including an installation space and a plurality of sidewalls, the installation space being formed by cutting a predetermined area of the plurality of sidewalls. The hard disk drive also includes a screw housing inserted in the installation space and coupled to the base, wherein the screw housing includes at least one screw hole. The hard disk drive also includes a damper interposed between the base and the screw housing.

Abstract: An inner rotor type motor includes a turn table having a disk loading portion and a central opening portion arranged to allow a disk to be attached thereto and removed therefrom, a rotor concentric with a rotation axis of the turn table, the rotor including a rotor holder having therein a rotor magnet and a cylindrical portion arranged to retain on an outer circumferential surface thereof the rotor magnet, and a stator having an armature arranged to oppose an outer circumferential surface of the rotor magnet via a gap therebetween. The turn table is affixed in an axial direction on an upper portion of the rotor holder, and the disk loading portion is arranged radially outside the cylindrical portion of the rotor holder. A disk loading surface of the disk loading portion is arranged to make contact with the disk, and a bottom portion of the disk loading portion is arranged axially below an area where the turn table and the rotor holder make contact with one another.

Abstract: A disk clamp to affix a disk of a hard disk drive to a spindle motor. The disk clamp includes a coupling part coupled to an upper portion of the spindle motor with screws, a pressing part provided outside the coupling part to press the disk against the spindle motor, and an elastic deformation part provided between the coupling part and the pressing part and adapted to be flexed in an elastically restorable manner, when the screws are tightened, to impart a pressing force to the pressing part. A hard disk drive including the disk clamp is also provided.

Abstract: A magnetic head has an upper magnetic pole layer, a lower magnetic pole layer, and a gap layer between the upper magnetic pole layer and the lower magnetic pole layer, with data being recorded by magnetizing the surface of a recording medium with magnetic field leaking from the gap layer. The gap length of the left and right sides of the gap layer in the width direction are formed non-symmetrically.

Abstract: A magnetic head structure has a coil and a magnetic pole allowing a magnetic flux generated by the coil to be transmitted therethrough and forming a magnetic gap. An insulating layer surrounds the coil, and a protective layer covers the insulating layer and the magnetic pole. The insulating layer has a volume equal to or greater than a value which is determined with respect to a thickness of the protective layer. It is preferable to increase the volume of the insulating layer as the thickness of the protective layer is made greater. By increasing the volume of the insulating layer, the protrusion of a portion of a floating surface of the magnetic head slider near the magnetic pole, toward the disk, is reduced.

Abstract: A cartridge is provided for cleaning a tape drive head. The cartridge includes a flexible member (e.g., a cartridge leader or tape portion) adapted for use with a tape drive and having a cleaning brush fixed thereto. The cleaning brush may be flexible and include a plurality of bristles for contacting and removing debris from the drive head, and in particular, from grooves or slots of the drive head. In another aspect a tape drive is provided, the tape drive including a flexible member (e.g., a drive leader) having a cleaning brush fixed thereto for contacting and cleaning the drive head.

Abstract: A head suspension includes a load beam to apply load onto a head that writes and reads information to and from the hard disk and a flexure attached to the load beam and supporting the head. The flexure has write wires and read wires connected to the head. The flexure includes a substrate made of a conductive thin plate, a base insulating layer made of flexible resin and formed on the substrate, and the wires are arranged on the base insulating film. A ground layer is formed at least partly between the substrate and the base insulating layer. The ground layer only corresponds to the write wires in a width direction of the flexure. The conductivity of the ground layer is higher than that of the substrate that is made of a conductive thin plate.

Abstract: The present invention provides a thin film magnetic head achieving improved recording performance by sharpening recording magnetic field gradient as much as possible. The thin film magnetic head has a return yoke layer disposed on a trailing side of a magnetic pole layer, and width W3 of an exposed surface of a lower TH specifying part in a TH specifying portion in the return yoke layer is equal to or larger than width W1 of an exposed surface of the magnetic pole layer (W3?W1), and is less than width W4 of an exposed surface of an upper TH specifying part (W3<W4). Since a part (magnetic flux) of a magnetic flux emitted from the exposed surface to the outside flows in the exposed surface while being spread a little in the width direction, spread of the magnetic flux is suppressed at the time of recording. Therefore, the recording magnetic field gradient near an air bearing surface is sharpened and recording performance is improved.

Abstract: A magnetic data system according to one embodiment includes at least one reader formed above a substrate, the at least one reader further comprising a shield and a magnetoresistive (MR) sensor. A first circuit sets a voltage (Vsub) of the substrate to about a voltage (Vshield) of the shield of the at least one reader.

Abstract: A magnetic data system according to one embodiment includes a head having a plurality of readers formed above a common substrate, each reader further comprising a shield and a sensor, a bias circuit associated with each reader for passing a bias current through the sensor thereof, wherein the bias circuits are floating. A charge clamp electrically couples each shield to the associated bias circuit. A shield biasing circuit is operatively coupled to each shield for setting a potential of the shield independently of the bias current.

Abstract: A magnetoresistive sensor having a magnetic anisotropy induced in one or both of the free layer and/or pinned layer. The magnetic anisotropy is induced by a surface texture formed in the surface of the magnetic layer of either or both of the free layer or pinned layer. The surface texture is formed by a direct, angled ion mill performed on the surface of the magnetic layer while holding the wafer on a stationary chuck. By applying this ion milling technique, the magnetic anisotropy of the pinned layer can be formed in a first direction (eg. perpendicular to the ABS) while the magnetic anisotropy of the free layer can be formed perpendicular to that of the pinned layer (eg. parallel to the ABS).

Abstract: A magnetoresistive sensor having an in stack bias structure and a pinned layer having shape enhanced anisotropy. The sensor may be a partial mill design wherein the track width of the sensor is defined by the width of the free layer and the pinned layers extend beyond the trackwidth of the sensor. The sensor has an active area defined by the stripe height of the free layer. The pinned layer extends beyond the stripe height defined by the free layer, thus providing the pinned layer with the shape enhanced anisotropy. The pinned layer structure can be pinned by exchange coupling with a layer of antiferromagnetic material (AFM) layer, with pinning robustness being improved by the shape enhanced anisotropy, or can be a self pinned structure which is pinned by a combination of magnetostriction, AP coupling and shape enhanced anisostropy.

Abstract: An AC arc fault device and methodology includes acquiring a signal in response to an AC current and defining overcurrent regions that correspond to the alternating directions of the AC current and a normal region. A software module identifies a parallel AC arc event over a selected time period in response to multiple occurrences of the acquired signal moving into one of the overcurrent regions. The software module also determines average current values over multiple selected time periods and identifies a series AC arc event in response to the difference between the average values exceeding a pre-determined threshold.

Abstract: A DC arc fault device and methodology includes acquiring a signal in response to a DC current. A software module identifies a parallel DC arc event when a difference between a maximum signal value and a minimum signal value exceeds a threshold. The software module also determines average signal values over multiple selected time periods and identifies a series DC arc event in response to the difference between the average values exceeding a predetermined threshold.

Abstract: A resettable circuit interrupting device having a single button for activating a test/reset mechanism. The circuit interrupting device can include a reset lockout and/or reverse wiring protection.

Abstract: An integrated circuit includes first and second power supply voltage terminals, a voltage controlled oscillator (VCO), and a deep N-well field effect transistor (FET). The VCO has a first node coupled to the first power supply terminal, a second node, and first and second oscillator output terminals, at least one of which is coupled to a common pin. The deep N-well field-effect transistor (FET) has a first terminal coupled to the second node of the voltage controlled oscillator, a second terminal coupled to the second power supply terminal, and a control electrode to receive a power on signal, a deep N-well is coupled to the first power supply terminal and a P-channel is coupled to the second power supply terminal to form a high impedance electrostatic discharge path between the common pin and the first and the second power supply terminals through the deep N-well.

Abstract: An electric circuit in which a combined resistance including a plurality of resistors of a small rating is disposed. The electric circuit includes a bypass section in order to allow a short-circuit current, when it occurs in the electric circuit, to intensively flow through one of the resistors in the combined resistance bypassing a remaining resistor in the combined resistance.

Abstract: A plurality of DC power supply modules have track pins interconnected for tracking of output voltages of the modules during power-up and normal power-down. Each module pulls down its track pin voltage in response to any fault, and detects a track pin voltage below a threshold to detect a fault communicated from any other module, to facilitate fault power-down. The track pin voltage is initially raised above the threshold for power-up. One module can be designated a master for monitoring an input voltage to the modules and for determining the track pin voltage for normal power-up and power-down.

Abstract: An electronic trip unit for a circuit breaker is disclosed. The electronic trip unit has a processing circuit, a real time clock chip, and a power source for powering the real time clock chip in the absence of current in the circuit breaker. The processing circuit is responsive to input signals representative of a current in the circuit breaker, and productive of a trip signal for tripping the circuit breaker. The real time clock chip is in signal communication with the processing circuit. In response to an off event at the circuit breaker following a current flow condition thereat, the real time clock chip is configured to generate time information for use by the processing circuit, which is configured to apply the time information to calculate a cooling effect arising from the circuit breaker being off, thereby providing for thermal memory.

Abstract: Provided is a new algorithm for detecting transmitter identification information (TII) in a transceiver system such as terrestrial-digital multimedia broadcasting (TDMB) conforming to the Eureka 147 standard. A TII decoder includes: a magnitude obtainer for monitoring a magnitude of an input signal; a phase obtainer for monitoring a phase of the input signal; a TII pulse determiner for determining whether a TII pulse is input or not, from the magnitude signal and phase signal; and a consistency checker for checking whether delay times of a plurality of TII pulses are identical and whether a TII pattern consisting of the TII pulses is repeated.

Abstract: For demagnetizing larger parts and charges, from about 1 kg mass, the wattless power of the demagnetization coil is so high that it is compensated with a capacitor. The capacitor for this is connected in series with the coil, and a pulse-width-modulated inverter of the usual construction type is applied for the supply. The demagnetization may be effected by impulse or by running through a magnetic field of a constant strength. The inverter in the first case produces a current impulse of a certain frequency, shape and duration. In the second case, it produces a certain constant current at a certain frequency. In order with a given exit voltage of the inverter to achieve the highest possible current in the coil, the produced frequency must correspond to the resonant frequency of the oscillation circuit. In order to ascertain the resonant frequency of the charged coil, this may be measured by way of a separate measurement coil with a small measurement current.

Abstract: An autonomous solenoid controller which in its broad aspect includes a microprocessor, a communication bus, and a solenoid driver. The microprocessor includes logic in order to control drivers for at least one solenoid. The communications bus is operably connected to the microprocessor so that the communications bus and the microprocessor communicate with one another. The communication bus communicates with an outside transmission control unit. The solenoid driver is electrically connected between the microprocessor and the solenoid, such that the microprocessor commands the solenoid driver to alter the position of the solenoid.

Abstract: A method and apparatus provides for high-speed switching of high-voltage and high power MOSFET-based solid state relays. A driver for a MOSFET based, high voltage, high current electronic relay includes a current supply for actuating the switching circuit and a transformer arrangement coupled to the current supply for receiving the supply of current from the current supply. The transformer arrangement is adapted for coupling with the switching circuit for selectively applying a predetermined voltage to the switching circuit which establishes the switching circuit in switch conducting or switch isolation.

Abstract: When charges are removed from a charged workpiece by applying positive and negative pulse-like high voltages to positive and negative electrode needles to generate positive and negative ions in a charge removing area and feeding the charged workpiece into the charge removing area, an ion balance inside the charge removing area is measured by a surface potential sensor before the workpiece is fed into the charge removing area, and a pulse width and/or a voltage value of the pulse-like high voltage applied to the electrode needle is changed depending on a measured result, thereby adjusting an amount of ions generated from the electrode needle to take a balance between the positive and negative ions.

Abstract: An electronic disabling device includes first and second electrodes positionable to establish first and second spaced apart contact points on a target having a high impedance air gap existing between at least one of the electrodes and the target. The power supply generates a first high voltage, short duration output across the first and second electrodes during a first time interval to ionize air within the air gap to thereby reduce the high impedance across the air gap to a lower impedance to enable current flow across the air gap at a lower voltage level. The power supply next generates a second lower voltage, longer duration output across the first and second electrodes during a second time interval to maintain the current flow across the first and second electrodes and between the first and second contact points on the target to enable the current flow through the target to cause involuntary muscle contractions to thereby immobilize the target.

Abstract: A multilayer electronic component includes a plurality of dielectric layers interleaved with a plurality of first and second polarity electrode layers. Internal and/or external anchor tabs may also be selectively interleaved with the dielectric layers. Portions of the electrodes and anchor tabs are exposed along the periphery of the electronic component in respective groups and thin-film plated deposition is formed thereon by electroless and/or electrolytic plating techniques. A solder dam layer is provided over a given component surface and formed to expose predetermined areas where solder barrier and flash materials may be deposited before attaching solder preforms. Some embodiments include plated terminations substantially covering selected component surfaces to facilitate with heat dissipation and signal isolation for the electronic components.

Abstract: Provided are an electric double-layer capacitor which can have a reduced internal resistance and an improved withstand voltage with a simple structure, and a method for manufacturing the capacitor. The electric double-layer capacitor uses an alloy of carbon and aluminum as a material of the electrode. The electrode is formed by applying carbon to an aluminum foil and heating the aluminum foil with carbon thereon to a temperature at which the aluminum foil and the carbon are alloyed.

Abstract: A starter housing (1) for a gas discharge lamp (3) is described. The starter housing (1) comprises an outer (5) and an inner housing (10) which are arranged one inside the other in an assembled state of the starter housing (1), of which the outer housing (5) has a metal layer for electromagnetic screening. The starter housing (1) in addition comprises an inner housing tube (11) at its inner housing (10), which is surrounded in the assembled state by an outer housing tube (8) arranged at the outer housing (5), such that the inner housing tube (11) and the outer housing tube (8) together form a socket (4). Reference elements (13; 14) are provided at the tubes (8; 11) of the two housings (5; 10) such that they co-operate in the assembled state for defining the positions of the two tubes (8; 11) with respect to one another. Furthermore, a method of mounting such a starter housing (1) is disclosed.

Abstract: A signal input/output device includes an array of signal input/output units. The signal input/output units have respective bases, each of which includes a connecting member. The connecting member has a second protruding end finger swingably supported on a base, and a first protruding end finger that engages with a stop of an adjacent base. The connecting member is positioned and fixed (secured) by a screw, which extends through a bottom plate and is threaded in a square nut. The connecting member, when secured in this manner, joins the adjacent bases to each other.

Abstract: A battery module, including at least one unit battery having an electrode group and a battery casing, and at least one partitioning wall coupled to the at least one unit battery, wherein the at least one partitioning wall has a smaller size as compared to the at least one unit battery. The battery module may further include a plurality of alternating unit batteries and partitioning walls having at least one fixing member coupled to each unit battery.

Abstract: An adapter is for mounting an electrical switching apparatus, such as a circuit breaker, on the back panel of an enclosure, such as a switchgear cabinet. The back panel has at least one aperture. The adapter includes a first end portion coupled at or about the aperture of the back panel, an engaging portion engaging and securing the circuit breaker to the adapter, a fastener, and a second end portion disposed distal from the first end portion and including an elongated slot. The elongated slot receives the fastener in order to couple the adapter to the back panel when the fastener is fastened, while enabling adjustment of the adapter and the circuit breaker coupled thereto, with respect to the back panel, when the fastener is unfastened. The first end portion, the engaging portion and the second end portion form a single piece adapter. An enclosure assembly is also disclosed.

Abstract: A valve island that has the PC board captured in the expansion station is disclosed.

Abstract: A double solenoid PC board that has a long narrow section extending from the main section is disclosed. The long narrow section has a connector at the tip. The connector at the tip of the long narrow section is configured to mate with or couple to a mating connector on a single solenoid PC board in a double solenoid valve.

Abstract: An operator for a valve that has a guiding ramp for alignment of a connector on a double solenoid PC board is disclosed. The connector from the double solenoid PC board mates with or couples to a connector on a single solenoid PC board mounted inside the operator. The guiding ramp aligns the connector from the double solenoid PC board as it is being inserted into the single solenoid operator.

Abstract: A magnetic latch for a display of a laptop computer is disclosed. The latch uses magnetic attraction to maintain the display closed and uses magnetic repelling forces to pop-up the display when opened. The latch includes one or more magnetic elements in the body of the laptop and at least one magnetic element in the display. When the display is closed, the magnet element in the display is positioned adjacent the magnet element in the body having an opposite polarity so that the magnet elements are attracted to one another. To pop-up the display, the user moves the magnetic element in the display so that it meets the magnetic pole in the body having the same polarity. When these meet, the repelling force between them causes the display to open slightly so that a user can then readily open the display.

Abstract: An automatic stabilizing device. A base plate includes a through hole. An imbalance detecting mechanism is disposed on the base plate and includes a detecting member and an engaging member connected thereto. The detecting member is movably disposed inside the through hole. A sliding support plate is disposed on the base plate and detachably connected to the imbalance detecting mechanism. The sliding support plate includes an engaging hole in which the engaging member is detachably engaged. A first resilient member is connected between the base plate and the sliding support plate, providing a first predetermined resilience to the sliding support plate. When the base plate swings to extend the detecting member from the through hole, the engaging member moves and disengages from the engaging hole, and the sliding support plate slides to protrude from the base plate by the first predetermined resilience.

Abstract: The present invention provides a display device capable of simplifying assembling operation and maintenance operation, and also capable of reducing the occurrence of a sink mark on the surface of the casing. All internal components are mounted on a chassis. Actually, a display panel is mounted on the front side of the chassis (on the side where a front cabinet is positioned), and various circuit boards (power supply board, AV board, MPEG board), a speaker and a recording and reproducing unit are mounted on the rear side of the chassis (on the side where a back cabinet is positioned). A stand supporting unit is attached to the bottom side of the chassis and an operation board is attached to the upper surface of the chassis.

Abstract: A method of mounting a liquid crystal display module thereof which secures an upper sash including the liquid crystal display module to a lower sash in a notebook personal computer. An arm coupled to one end of a fixed rod by a hinge is arranged to be positioned between a side wall of the upper sash and a side wall of the lower sash. A screw goes through from the side wall of the upper sash, via the arm, to the side wall of the liquid crystal display module.

Abstract: A notebook computer. The notebook computer includes a body, a keyboard, an infrared module, a wireless bluetooth module, and a control circuit. The keyboard is detachably disposed on the body. The infrared module and the wireless Bluetooth module are disposed on the body, and transfer a signal between the body and the keyboard. The control circuit detects a distance between the body and the detached keyboard. When the distance is less than a predetermined distance, the infrared module is used. When the distance is greater than the predetermined distance, the wireless bluetooth module is used.

Abstract: An enclosure for housing various components of a computing device is provided herein, which contains at least three L-shaped corner members, at least three elongated wall members, a top cover member, and a bottom cover member. The corner members and the wall members are interleaved and joined to form a polygonal circumference for the enclosure. The top and bottom cover members are fixed to the top and bottom of the circumference respectively into a closed, polygonal-shaped enclosure so that a component of the computing device such as the motherboard, optical disk drive, hard disk drive, etc., could be housed therewithin.

Abstract: A modularized computer comprises a main board having a bank slot at a surface thereof, a bottom of the main board having a connecting port, a plurality of inserting slots, and at least one bus slot; a first data accessing unit inserted into the bank slot and being positioned on the main board; a second data accessing unit inserted into the connecting port so as to be positioned at the bottom of the main board; a power module inserted into the inserting slot to be positioned on the main board. The bank slot, the connecting port, a plurality of inserting slots and the at least one bus slot are electrically connected by the circuit on the main board; and a mother board having at least one input/output port is connectable to the bus slot.