| 32nd week of 2009 patent applcation highlights part 24 |
| Patent application number | Title | Published |
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| 20090195861 | LIGHT CONTROL OF AN ELECTRONIC DEVICE - The invention is directed towards an electronic device including at least one electro active polymer element. The at least one electro active polymer element includes an electrode. The at least one electro active polymer element is configured to change volume when a voltage is applied to the electrode, where the change in volume results in a change in a luminous transmittance of the electro active polymer element. | 2009-08-06 |
| 20090195862 | DISTRIBUTED RAMAN AMPLIFYING SYSTEM, START-UP METHOD THEREOF, AND OPTICAL DEVICE - To obtain automatic gain control with high accuracy by including first and second light monitors, a reference light supplying unit supplying reference light of which wavelength is set within a gain band of a distributed Raman amplification and out of a wavelength band of main signal light to the optical transmission path, a first reference light monitor monitoring a power of the reference light input to the optical transmission path from one end side thereof, a second reference light monitor monitoring the power of the reference light output from the other end side of the optical transmission path, and a controlling unit controlling supply of pump light in a pump light supplying unit as well as supervising a state of the optical transmission path, based on monitor results from the first and second light monitor and the monitor results in the first and second reference light monitors. | 2009-08-06 |
| 20090195863 | Optical amplification apparatus, optical communication apparatus, and optical communication method - A Raman amplifier inputs pump light into an optical fiber (transmission path) through which an optical signal passes, to amplify the optical signal. An optical receiving unit is provided downstream of the Raman amplifier and monitors the power of the optical signal amplified by the Raman amplifier. A calculating unit determines Raman amplification gain based on the power of the optical signal monitored by the optical receiving unit, and calculates the power of a noise component included in the optical signal based on the gain. The calculating unit, in real-time, calculates the power, which varies in complicated manners depending on conditions, and outputs information concerning to the power to another apparatus at a frequency on the order of milliseconds. | 2009-08-06 |
| 20090195864 | PARTIALLY TRANSPARENT STATIC SUN PROTECTION DEVICE - The present invention relates to a part-transparent static sun protection device of a flat base ( | 2009-08-06 |
| 20090195865 | INFRARED RADIATION REFLECTING LAYER SYSTEM AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to an infrared radiation reflecting layer system for panes of glass and similar, the properties of said layer system being maintained even after heat treatment, for example, for bending or hardening the panes of glass. Silver is used as the infrared radiation reflecting layer. A combination of NiCrO | 2009-08-06 |
| 20090195866 | MICROSCOPE - A microscope has an objective lens, an imaging lens projecting light passing through the objective lens to form an image of a specimen, an image sensor located at an imaging position where the image of the specimen is formed by the imaging lens, an illumination light source, and a reflecting fluorescence illumination optical system including a dichroic mirror introducing light from the illumination light source into an optical path on the objective lens side, illuminating the specimen with the light. In this case, the microscope further has a relay optical system in which an intermediate image of the specimen is formed between the objective lens and the imaging lens and is relayed to the imaging lens, and the dichroic mirror of the reflecting fluorescence illumination optical system is located between a pupil position conjugate with a pupil position of the objective lens, formed between the relay optical system and the imaging lens, and the relay optical system. | 2009-08-06 |
| 20090195867 | INVERTED MICROSCOPE - An inverted microscope for the high-contrast imaging of objects includes multiple objectives configured to be disposable in an imaging beam path. Each objective has a respective objective pupil associated therewith. A lens system is also provided for generating respective intermediate images of the respective objective pupils. A modulator disposing device, which includes a plurality of modulators, is configured to dispose the modulators at predetermined respective locations on an optical axis corresponding to the locations of the respective intermediate images of the respective objective pupils so as to contrast an object image. | 2009-08-06 |
| 20090195868 | SOLID STATE FLUORESCENCE LIGHT ASSEMBLY AND MICROSCOPE - An illumination system for a fluorescence microscope is provided. The illumination system includes a carriage removably receivable within the microscope and a plurality of filter cubes movably arranged on the carriage, wherein each filter cube is moveable between an active position and an inactive position. Each filter cube includes a housing having first and second openings and a solid state light source secured to the housing. The solid state light source emits light when the filter cube is moved into the active position. Each filter cube further comprises at least one optical filter disposed within the housing, wherein the optical filter corresponds to the solid state light source. | 2009-08-06 |
| 20090195869 | Optical microscope system for detecting nanowires using polarizer and fast fourier transform - Provided is an optical microscope system for detecting nanowires that is designed with a rotational polarizer and Fast Fourier Transform (FFT) to allow for use of an existing optical microscope in fabricating an electronic device having the nanowires. The optical microscope system includes: a light source for emitting light to provide the light to a nanowire sample; a rotational polarizer provided on a path of the light emitted from the light source for polarizing the light; an optical microscope for detecting a nanowire image using light that is polarized by the rotational polarizer and incident on the nanowire sample; a CCD camera provided in a region of the optical microscope for photographing and storing the nanowire image detected by the optical microscope; and a data processor for performing Fast Fourier Transform (FFT) on the nanowire image stored in the CCD camera. Intensity of reflected light varies, due to optical anisotropy of the nanowires, along a polarizing orientation of light incident on the nanowires. It is possible to obtain a distinct image of the nanowires having a nanometer line width by performing FFT on each pixel of reflected light images obtained at predetermined time intervals after light passing through the polarizer rotating in a predetermined period is incident on the nanowires. | 2009-08-06 |
| 20090195870 | SAMPLE STAGE FOR OPTICAL INSPECTION - A sample stage is provided with first to fourth plates. Each of the first to fourth plates has a first side surface and a second side surface. The first and the second side surfaces are adjacent to each other. The first and the second side surfaces extend perpendicularly to each other. The second side surface of the second plate is in contact with the first side surface of the first plate. The second side surface of the third plate is in contact with the first side surface of the second plate. The second side surface of the fourth plate is in contact with the first side surface of the third plate. The second side surface of the first plate is in contact with the first side surface of the fourth plate. A first rectangular opening is formed by the first side surfaces of the first to fourth plates. | 2009-08-06 |
| 20090195871 | METHOD OF DETERMINING ORIENTATION OF A TELESCOPE - An automatic telescope ( | 2009-08-06 |
| 20090195872 | Screen and projection system - A screen includes a plurality of reflecting portions disposed on a flat surface with a clearance left between one another. The reflecting portions reflect diagonal incident light coming in a predetermined direction other than the normal line direction of the flat surface, and block the diagonal incident light by reflecting the incident light such that the incident light cannot reach each area between the adjoining reflecting portions on the flat surface. | 2009-08-06 |
| 20090195873 | THREE-DIMENSIONAL IMAGE REPRODUCING APPARATUS - The invention provides a three-dimensional image reproducing apparatus that enables stable provision of a three-dimensional image display by preventing occurrence of crosstalk between adjacent lenses or adjacent hologram optical elements and eliminating shift of a three-dimensional image. The three-dimensional image reproduce apparatus of the invention includes an array of adjacent optical elements, which is an array of lenticular lens, an fly-eye lens array and an array of hologram optical elements, and a cross-talk prevent part preventing cross-talk between the adjacent optical elements and having an image source providing a plurality of images each of which has a different parallax information. | 2009-08-06 |
| 20090195874 | LASER BEAM COMBINING BY POLARIZATION INTERLACING - The present invention is a time division multiplexed beam combination for laser signal generation. In one aspect, the time division multiplexed beam combination employs a mechanical implementation. In a second aspect, the time division multiplexed beam combination employ a polarization interlacing. | 2009-08-06 |
| 20090195875 | Avoiding Interference Artifacts in a Head-Up Display or a Reflected See-Through Type Display - Briefly, in accordance with one or more embodiments, a birefringent layer may be utilized in conjunction with a head-up display (HUD) for a vehicle or the like, for example where the birefringent layer is disposed in or on the windshield. The birefringent layer may impart a change in the polarization of light emerging from a projector of the head-up display in order to reduce or minimize interference between beams from the display and reflecting off of two or more surfaces that are combined at the viewer's eye, and/or to reduce or minimize the effect of polarizing sunglasses on the viewability of the image projected by the display. In one or more embodiments, the birefringent layer alters the polarization of the light reaching the viewer's eye if the user is wearing polarizing glasses or lenses so that less light from the display is blocked. | 2009-08-06 |
| 20090195876 | METHOD FOR DESCRIBING A RETARDATION DISTRIBUTION IN A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS - In a method for describing a retardation distribution of a light bundle emerging from a selected field point, which passes through a birefringent optical element contained in an optical system of a microlithographic projection exposure apparatus, a distribution of retardation vectors is determined so that precisely one direction of a retardation vector is allocated to each directionless orientation of the retardation. The retardation vector distribution is then at least approximately described as a linear superposition of predetermined vector modes with scalar superposition coefficients. | 2009-08-06 |
| 20090195877 | METHOD FOR MANUFACTURING RETARDATION FILM, RETARDATION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY - A retardation film is manufactured by stretching a thermoplastic resin film while adjusting stretching ratio α [%], temperature β [° C.], and stretching speed γ [%/min] so that the following formulas (1) and (2) are satisfied when the thermoplastic resin film is stretched at the stretching ratio α [%], the temperature β [° C.], and the stretching speed γ [%/min], therefore, stretching unevenness can be prevented: | 2009-08-06 |
| 20090195878 | LINEAR SWING ACTUATOR - There is provided a linear swing actuator, which is provided with a multipolar magnet arranged with one magnetic pole in a central portion and its respective opposite magnetic poles at both ends thereof along a length direction; and a single coil arranged to be relatively movable in the length direction face to face with respect to the multipolar magnet. In this configuration, a distance between the magnetic pole in the central portion and each of the magnetic poles at the both ends is arranged to be shorter than a dimension in the length direction of the coil. | 2009-08-06 |
| 20090195879 | DETERMINISTIC APERIODIC PATTERNED DIELECTRIC AND PLASMONIC MATERIALS FOR LOCALIZED ELECTROMAGNETIC FIELD ENHANCEMENT - A method is shown for the extension in higher spatial dimensions of deterministic, aperiodic structures which exhibit strong aperiodic effects and have overall compatibility with the planar technology of integrated optical circuits. Disclosed devices are operative in response to incident electromagnetic energy to create a distribution of electromagnetic energy having localized electromagnetic field enhancement, wherein the device includes a dielectric or plasmonic material having a region of interaction with the incident electromagnetic energy. The region of interaction has a deterministic, aperiodic patterning with an array of individual patterning elements of distinct refractive indices such that a variation of refractive index of the device occurs over distances comparable with a wavelength of the incident electromagnetic energy, the array being a multi-dimensional extension of a corresponding one-dimensional sequence such that a spectral response of the array is a multi-dimensional equivalent of a spectral response of the one-dimensional sequence. Specific examples employing so-called Rudin-Shapiro, Thue-Morse and Fibonacci sequences are shown. | 2009-08-06 |
| 20090195880 | LIGHT REFLECTION PLATE - A three-dimensional light reflection plate that can successfully prevent deformation of the light reflection plate, reduce initial cost and product cost, and facilitate increase in size and reflectance. The light reflection plate includes a bottom plate in which a plurality of mutually parallel slit holes are formed on a flat, light-reflective plate material and a mountain plate that is rectangular from a planar view of which a width direction cross-sectional shape is a mountain shape and in which insertion sections are formed in both width-direction end sections. The mountain plate is fixed to the bottom plate by the insertion sections of the mountain plate being inserted into the slit holes of the bottom plate. | 2009-08-06 |
| 20090195881 | IMAGE DISPLAY APPARATUS AND PROJECTOR - An image display apparatus includes a light source that emits light-source light, an illumination system that makes the light-source light uniform, a color separation system that separates illumination light outputted from the illumination system into color light fluxes, color optical modulators illuminated with the color light fluxes separated by the color separation system, and an optical element having an element surface the film thickness distribution of which is configured in such a way that the film thickness changes in a non-uniform manner. | 2009-08-06 |
| 20090195882 | Mechanical lenses - A mechanical lens includes a rigid chamber, a first transparent window located to close one end of the chamber, a flexible transparent membrane window located to close another end of the chamber, and a transparent fluid having an index of refraction. The flexible transparent membrane window is along an optical path of light received through said first transparent window. The chamber is filled with said fluid and a curvature of said flexible transparent membrane window is responsive to a pressure of said transparent fluid. | 2009-08-06 |
| 20090195883 | Optical Element Comprising Cells Sealed by Means of a Layer of Adhesive Material - An optical element comprises a base component ( | 2009-08-06 |
| 20090195884 | ZOOM LENS AND IMAGE PROJECTION APPARATUS INCLUDING THE SAME - A zoom lens includes, in order from an enlargement conjugate side to a reduction conjugate side, a first lens unit of negative refractive power; a second lens unit of positive refractive power; a third lens unit of positive refractive power, the third lens unit having at least three lens elements; a middle lens unit including at least one lens unit; and a last lens unit of positive refractive power. All the lens units, except the first lens unit and the last lens unit, move during zooming. The zoom lens satisfies appropriate conditions. | 2009-08-06 |
| 20090195885 | Zoom lens - The invention is directed to inner-focusing zoom lenses that include multi groups of lens pieces, namely, the first lens group or the leading lens group of positive refractivity, the second lens group of negative refractivity, and the remaining trailing groups of positive refractivity, as a whole. At least one group of positive refractivity among the trailing groups includes two or more negative lens pieces, at least one of which is connected on its surface to another lens piece to form a duplicated composite lens so that the junction between two of them functions to diverge incident beams. Assuming now that a sum of the refractivities of all the junctions of the composite lenses can be expressed as Σφ=Σ|(N1−N2)/R| where N1 and N2 are refractivities that substances before and after the junction of the composite lenses respectively have, R is a radius of curvature of the junction, ft is a focal length of the comprehensive lens optics of the zoom lens at the telephoto end. | 2009-08-06 |
| 20090195886 | Zoom lens and imaging apparatus incorporating the same - The invention relates to a zoom lens and an imaging apparatus incorporating the same. The zoom lenses comprises, in order from its object side, a positive first lens group G | 2009-08-06 |
| 20090195887 | Compact Zoom Lens - A compact zoom lens including in an order from an object side to an image side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group includes two lens, the second lens group includes three lens, and the third lens group includes a single lens, wherein, during zooming from wide angle to telephoto, the distance between the first and second lens groups decreases, the distance between the second and third lens groups increases, and the third lens group moves toward the image side, and wherein the following mathematical inequalities are satisfied: | 2009-08-06 |
| 20090195888 | Image Forming Optical System and Electronic Image Pickup Apparatus Using Image Forming Optical System - An image forming optical system according to the present invention is characterized in that, in an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the positive lens group is disposed at an object side of the aperture stop,
| 2009-08-06 |
| 20090195889 | IMAGING DEVICE CAPABLE OF RETRACTING LENS UNIT THEREOF AND LENS UNIT PROTECTING METHOD THEREOF - An imaging device includes a housing, a lens unit, a detection unit, a central processing unit and a driving unit. The lens unit is configured for moving between a first position where the lens unit is received in the housing, and a second position where the lens unit extends from the housing. The detection unit is configured for detecting a current acceleration of the imaging device. The central processing unit is configured for receiving the current acceleration and generating a low driving voltage value if the current acceleration is smaller than a predetermined value and a high driving voltage value if the current acceleration is equal to or greater than the predetermined value. The driving unit is configured for receiving the generated driving voltage value from the central processing unit and retracting the lens unit from the second position to the first position based on the driving voltage. | 2009-08-06 |
| 20090195890 | Lens barrel and camera with lens barrel - A lens barrel includes: a first optical element group that has an optical element disposed on a first optical axis; a second optical element group that has an optical element disposed on a second optical axis extending along a direction different from a direction along which the first optical axis extends; and a bending portion disposed between the first optical element group and the second optical element group, that bends image light having passed through the first optical element. At least part of the first optical element group can be housed inside a first space formed as the bending portion moves further away from the first optical axis. | 2009-08-06 |
| 20090195891 | CAM MECHANISM OF A RETRACTABLE ZOOM LENS - A cam mechanism includes a cam ring having front and rear cam grooves which have a common reference cam diagram and are formed so that a front part of the front cam groove and a rear part of the rear cam groove are omitted from the reference cam diagram. A normal-width section and a wide-width section are provided in each of the front and rear cam grooves. In a zoom range, an associated cam follower of a driven member is engaged in the normal-width section of one of the front and rear cam grooves, and another associated cam follower of the driven member is positioned out of the other of the front and rear cam grooves. In a transition state between the zoom range and an accommodated position, both of the associated cam followers are positioned out of the normal-width sections of the respective front and rear cam grooves. | 2009-08-06 |
| 20090195892 | Image lens module - An imaging lens module includes a fixed diaphragm and an optical module. The optical module includes first, second and third lenses arranged from an object side to an image side in a sequence of: the first lens component of positive refractive power with a meniscus shape, having a convex surface on the object side and at least one aspheric surface; the diaphragm; the second lens component of positive refractive power with a meniscus shape, having a concave surface on the object side and at least one aspheric surface; the third lens component of negative refractive power with two aspheric surfaces, having a concave surface with smaller curvature on the object side, a wavy surface on the image side, and a concave surface on the image side near the optical axis. The imaging lens module is a lens module with the features of high imaging quality, miniaturization, high brightness and high yield rate. | 2009-08-06 |
| 20090195893 | LENS ASSEMBLY - A lens assembly includes, in order from an object side toward an image side along an optical axis thereof, a first lens having positive refractive power, and a second lens. The lens assembly satisfies the following conditions: 0<|f | 2009-08-06 |
| 20090195894 | COMPOSITE OPTICAL ELEMENT AND METHOD FOR MANUFACTURING THE SAME - The present invention belongs to a technical field related to a composite optical element including a first optical component and a second optical component coupled to the first optical component. In a composite optical element | 2009-08-06 |
| 20090195895 | LIGHT COLLECTING DEVICE - The present invention relates to collecting sunlight and to transport said sunlight into a space. The sunlight collecting device comprises at least a fist focusing lens and at least a first light collector. A first and a second movable sheet are provided with a first vertical distance from each other. A pendulum is provided to hold the focusing lens and to also be coupled to a first sheet by a first joint and to a second sheet by a second joint. Said first and second joint provides movement in at least two orthogonal directions. | 2009-08-06 |
| 20090195896 | IMAGING SYSTEM - The present invention provides an imaging system, includes a substrate, an image sensor fixed on the substrate includes a sensing area, a fixing board located on the substrate, at least two micro-lens modules, and at least two optical fibers with input ends respectively positioned in the micro-lens modules and output ends positioned to the fixing board, the output ends of the fibers directing to different portions of the sensing area. | 2009-08-06 |
| 20090195897 | Lens module and method for making the same - A lens module includes a lens barrel, a lens, a sensing element, and an electromagnetic shield. The lens barrel defines a receiving space. The lens is mounted in the receiving space. The sensing element is covered by the lens barrel, is disposed below the lens, and is spaced apart from the lens. The sensing element includes a top face, a bottom face, a side face extending between the top and bottom faces, a plurality of first conductors mounted on the bottom face, at least one second conductor mounted on one of the top, bottom, and side faces, and a grounding element having one end connected to one of the first conductors and the other end connected to the second conductor. The electromagnetic shield is coupled to the lens barrel and includes a grounding portion electrically connected to the second conductor. | 2009-08-06 |
| 20090195898 | Lens Barrel and Imaging Apparatus - A lens barrel includes a lens frame movable in optical axis directions of a lens, a cam barrel rotated around outside the lens frame to move the lens frame in the optical axis directions, a base supporting the cam barrel to be rotatable and to be immovable in axial directions, and a hollow motor including a rotor and a stator and rotating the cam barrel. The stator supported by the base surrounds the rotor provided outside the cam barrel to be movable in the axial directions and rotate integrally with the cam barrel. As the rotor moves in one of the axial directions, a second locking portion of the base engages with a first locking portion of the rotor to prevent rotation of the rotor. A movement mechanism moves the rotor in the axial directions between a locking position and an unlocking position of the first and second locking portions. | 2009-08-06 |
| 20090195899 | Mirror Module for Fastening to a Structural Element - A mirror module for fastening to a structural element, comprises a mirror arrangement that includes at least one mirror stack and a first receiving device for holding the mirror arrangement. Each of the at least one mirror stack comprises at least one individual mirror made of a first material. The first receiving device is made of a second material which has a coefficient of thermal expansion adapted to the first material. For fastening the mirror module to the structural element, a second receiving device made of Invar is provided which holds the first receiving device of the mirror module. | 2009-08-06 |
| 20090195900 | METHOD AND APPARATUS FOR FABRICATING A GEL STRING - Systems and methods are disclosed that include overlapping a first portion of a first piece of flexible filter material and a second portion of a second piece of flexible filter material. In these systems and methods, the first and second pieces of flexible filter material produce a desired change in a characteristic of a light beam. These systems and methods can include clamping the first portion and the second portion between a first element and a second element. In addition, these systems and methods can include producing ultrasonic vibrations in the first element that promotes a bond between the first and second piece of flexible filter material. | 2009-08-06 |
| 20090195901 | Circuits for vcm back emf measurement with a bias voltage to control head flying location on disk - A hard disk drive with a voice coil motor coupled to a head. The head moves relative to a disk. The voice coil motor receives a biasing voltage and has a back emf voltage. A test circuit is coupled to the voice coil motor to determine the back emf voltage. The back emf voltage can be used to analyze low frequency vibration in the disk drive. The test circuit can be constructed so that the back emf voltage is proportional to a pair of test resistors and/or a pair of test inductors. The biasing voltage allows the back emf voltage to be measured and analyzed while the head is at any location from the ID to the OD of the disk. | 2009-08-06 |
| 20090195902 | METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR ESTIMATING ADJACENT TRACK ERASURE RISK BY DETERMINING ERASE BAND WIDTH GROWTH RATES - A method according to one embodiment comprises determining a growth rate of an erase band width between an aggressor track and a substantially unerased portion of a data track on a magnetic medium during a first number of write cycles on the aggressor track; and estimating the erase band width, or derived parameter thereof, for or after a second number of write cycles on the aggressor track, the second number of write cycles being greater than the first number of write cycles. | 2009-08-06 |
| 20090195903 | METHOD OF EVALUATING MAGNETORESISTIVE HEAD - The method is capable of perfectly detecting unstably magnetized magnetoresistive heads. The method of evaluating a magnetoresistive head comprises the steps of: applying a magnetic field to the magnetoresistive head, in the direction parallel to an air bearing surface of the magnetoresistive head, at a prescribed temperature; obtaining an image of the air bearing surface in a first magnetized state by using the Kerr effect; applying an external stress to the magnetoresistive head; obtaining an image of the air bearing surface in a second magnetized state by using the Kerr effect; and evaluating characteristics of the magnetoresistive head on the basis of the images of the first magnetized state and the second magnetized state or by comparing the images of the first magnetized state and the second magnetized state. | 2009-08-06 |
| 20090195904 | MAGNETIC ROM INFORMATION CARRIER - The invention relates to a method of manufacturing a device ( | 2009-08-06 |
| 20090195905 | METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR THERMALLY ASSISTED RECORDING SYSTEMS - A method according to one embodiment comprises using a heating device, inducing localized heating on a magnetic medium during a recording operation; detecting a temperature in a vicinity of the heating device; detecting a current of the heating device; and performing an action if a function of at least one of the temperature and the current is outside an acceptable operation zone. A method according to another embodiment comprises selecting an initial current of a heating device for inducing localized heating on a magnetic medium during recording operations; initiating the heating device; performing recording operations; monitoring a temperature in a vicinity of the heating device during the recording operations; and if a function of the temperature and the current is outside an acceptable operation zone, changing an operating parameter such that the function of the temperature and the current is in the acceptable operation zone. | 2009-08-06 |
| 20090195906 | Method and System For Adaptive Timing Recovery - Timing recovery in partial-response-based magnetic recording systems customarily employs the “decision-directed” method wherein phase error is recovered from the differences between the noise-corrupted received signal samples and their estimated ideal (noise and phase error free) values. The filtered phase error drives a numerically-controlled oscillator which determines the instants at which the signal is resampled, attempting to place said instants at the ideal sampling times. The resampled signal contains errors due to mistiming as well as to the original corrupting noise, and these errors directly influence the success of subsequent detection. However, the noise can be reduced using adaptive linear prediction, having the effect of reducing the output error for a given noise input, or maintaining the same error for a larger noise input. | 2009-08-06 |
| 20090195907 | METHODS AND APPARATUS FOR FORMATTING MEMORY MEDIA - At least one rotating memory medium such as a hard disk is installed in a hard disk drive or the like. The disk drive has a controller, controller memory and one or more heads for writing and reading to and from one or both sides of the disk. The disk is scanned for defects as sector locations, servo wedges and other information are recorded on tracks on the disk. Some unused space is reserved around the track to compensate for the area lost to defects. If a defect is detected in a sector, the sector is split into first and second parts on either side of the defective space. The location of the defective space is recorded in the controller memory and is processed like a servo wedge. In this manner, only part of the sector is lost due to the defect. | 2009-08-06 |
| 20090195908 | Method and apparatus for vibration damping of a suspended media read/write head - A method of controlling a head for a recording medium includes determining that the head is in an inoperative state, and activating a damping arrangement in response to the determination that the head is inoperative. A movement of the head while the head is inoperative is sensed. The damping arrangement is used in response to the sensing step to exert a force upon the head to thereby damp the movement, a magnitude of the force being dependent upon a parameter of the movement. | 2009-08-06 |
| 20090195909 | GAIN CONTROL FOR DATA-DEPENDENT DETECTION IN MAGNETIC STORAGE READ CHANNELS - Method, apparatus and computer program product adjust gain in a read channel of a magnetic media data storage device. A digital signal sample having a data-dependent noise component is received. A gain value, stored in a location in a gain table, is selected in a data-dependent manner. The gain of the signal sample is adjusted in response to the selected gain value. A bit pattern is detected from the gain-adjusted signal sample and a data output signal is output based upon the detected bit pattern. | 2009-08-06 |
| 20090195910 | STORAGE DEVICE AND METHOD OF CONTROLLING SPINDLE MOTOR OF STORAGE DEVICE - In a storage device, before activating a spindle motor (SPM) or continuously from activation until the SPM is stabilized at a target number of rotations, a voltage and temperature monitoring unit monitors the temperature in a disk enclosure unit and the voltage to be applied to an SPM driver. A current-amount limiting value calculating unit calculates an optimum current-amount limiting value not exceeding a rated current of the SPM driver, and a motor controlling unit controls the SPM driver and changes the current to be applied to the SPM so that the current does not exceed this optimum current-amount limiting value. | 2009-08-06 |
| 20090195911 | MAGNETIC RECORDING DEVICE - A magnetic recording device includes a patterned media magnetic recording medium where multiple tracks are arranged for radial direction in a concentric manner, the tracks each being formed by arranging multiple recording dots. The recording dots are each made of an isolated magnetic material and arranged in a rotational direction. The magnetic recording device further includes a magnetic head. The magnetic head includes: a main magnetic pole that faces the magnetic recording medium; a magnetic field generation coil that generates magnetic field to be transmitted to the magnetic recording medium through the main magnetic pole; a return yoke that receives the magnetic flux transmitted to the magnetic recording medium from the main magnetic pole and returns the magnetic flux thus received to the magnetic field generation coil; and a search coil that detects a change in magnetic flux passing through the return yoke. | 2009-08-06 |
| 20090195912 | DISK DRIVE THAT CALIBRATES THE POWER FOR SETTING THE DYNAMIC FLY HEIGHT OF THE HEAD TO A TARGET VALUE - According to one embodiment, a measuring module measures the dynamic flying height of a head. A change calculation module calculates a change ΔDFHPt in a reference power optimal for setting a first dynamic flying height, based on the difference between a second dynamic flying height, which has a value measured by the measuring module while the reference power is being supplied to a adjusting element, and the first dynamic flying height. A controller changes the power to be supplied to the adjusting element, by the change ΔDFHPt calculated by the change calculation module. | 2009-08-06 |
| 20090195913 | MAGNETIC DISK APPARATUS AND METHOD FOR CONTROLLING MAGNETIC HEAD - A magnetic disk apparatus includes: a driving section for moving a magnetic head recoding and reproducing information in a magnetic disk; and a controller for controlling the driving section. The controller includes: a position-error feedback control system having an integrator and a phase lead compensator and obtaining a position command based on difference between target position and detection position of the magnetic head to perform feedback control of the driving section; and a two-freedom-degree control system inputting a target move distance of the magnetic head and outputting a current command to the driving section by using a mathematic model of the driving section. The controller providing the driving section with an output of the integrator and therewith updating the mathematical model by using an output of the phase lead compensator, in each of the times of positioning control and seek of the magnetic head. | 2009-08-06 |
| 20090195914 | HARD DISK DRIVE AND METHOD FOR DESIGNING ADDITIONAL CONTROLLER INCLUDED IN HARD DISK DRIVE - A hard disk drive is provided. The hard disk drive comprises a plant configured to drive the hard disk drive, a main controller configured to control the plant, and an additional controller connected in parallel with the main controller. A response function in consideration of the plant and the main controller is referred to as a main response function, and a response function in consideration of the plant and the additional controller is referred to as a first response function. The first response function cancels a function value corresponding to a section of the main response function that is associated with disturbance. The response function of the additional controller may be designed using the first response function. The hard disk drive removes a portion of the main response function to minimize the influence of the disturbance. | 2009-08-06 |
| 20090195915 | METHOD OF FORMING REFERENCE PATTERN - A method of forming a reference pattern. The method includes: determining whether a boundary point of an initial reference pattern is located at an inner diameter region of a disk, which is inside an outermost circumferential track; and if the boundary point of the initial reference pattern is located at the inner diameter region of the disk, additionally forming a compensated reference pattern integrally with the initial reference pattern so that a final reference pattern extends in the direction of an outer diameter of the disk. The method allows compensation for a defective reference pattern into an effective reference pattern by extending the initial reference pattern according to whether the boundary point of the initial reference pattern is located inside the outermost circumferential track of the disk. | 2009-08-06 |
| 20090195916 | EXTRACTION OF TRANSDUCER POSITION INFORMATION FROM BIT PATTERNED MAGNETIC MEDIA - Extracting transducer position information from bit patterned magnetic media includes providing a magnetic storage medium having at least one data array with multiple discrete and separated recording bits and providing the transducer adjacent the data array. A readback signal dependent upon the multiple recording bits is generated with the transducer. Determining the transducer position information further includes generating at least a first position signal and a second position signal from the readback signal. | 2009-08-06 |
| 20090195917 | HARD DISC APPARATUS AND HEAD ALIGNMENT METHOD - According to one embodiment, a hard disc apparatus comprises a disc, wherein areas between neighboring servo areas are allocated to data areas including data sectors, a head module, and a storage module configured to store head alignment data, wherein the head alignment data are defined for the data areas, and includes information indicating an interval from the servo area to a first data sector, information indicating a data area in one track, a first data sector which is a start sector of the track, and information indicating the presence/absence of a defective sector including a primary defect, and the start sector of a track including the defective sector is a data sector next to the defective sector. | 2009-08-06 |
| 20090195918 | METHOD AND APPARATUS FOR REPRODUCING INFORMATION ON BIT-PATTERNED RECORDING MEDIUM - The information reproducing method manages an average magnetization state of each sector on a bit-patterned recording medium as sector management information and sets an information reproduction condition for the sector on the bit-patterned recording medium, based on the sector management information. | 2009-08-06 |
| 20090195919 | METHOD OF FABRICATING A SUSPENSION - In a method of fabricating a suspension, a suspension has first and second opposing surfaces and includes a flexure, a load beam, a mounting arm, and traces. The flexure is coupled to a proximal end of the load beam, and the mounting arm is coupled to a distal end of the load beam. The traces are coupled to the flexure. A suspension property to be altered is identified. A value of the unaltered suspension property is measured. An altered value of the suspension property is determined. The flexure, the load beam, or the mounting arm of the suspension, or a combination thereof, is coated with at least one layer of at least one film to alter the identified suspension property from the measured value to the predetermined altered value. | 2009-08-06 |
| 20090195920 | Main pole bridge structure - A method of reducing flux leakage between a main pole and a wrap around shield (WAS) is provided. A gap underneath a main pole is etched. Magnetic material is deposited in the gap. A layer of nonmagnetic material is deposited on the magnetic material, wherein the layer of nonmagnetic material reduces flux leakage between the main pole and the WAS. | 2009-08-06 |
| 20090195921 | Method and apparatus for temperature control in a disk drive and/or an assembled circuit board - This application discloses and claims disk drives including a Phase Change Material (PCM) with a target temperature, where the PCM releases heat in response to an outside ambient temperature declining below the target, and the PCM absorbs heat in response to the ambient temperature rising above the target temperature. The disk drive may be a ferromagnetic disk drive, a ferroelectric disk drive, a hybrid disk drive, a Redundant Array of Inexpensive Disks (RAID), or a solid state disk drive. This patent application discloses a disk base and/or disk cover and/or any assembled circuit board containing PCM. Making the disk drive, the disk base, the disk cover and the assembled circuit board are disclosed and claimed as well. | 2009-08-06 |
| 20090195922 | METHOD AND APPARATUS FOR ACTIVELY CANCELING VIBRATIONS IN A COMPUTER SYSTEM - One embodiment of the present invention provides a system actively cancels vibrations in a computer system. During operation, the system monitors vibrations in the computer system. Next, the system analyzes the vibrations to identify one or more harmonics in the vibrations. The system then actively cancels one or more of the identified harmonics. | 2009-08-06 |
| 20090195923 | Heat assisted spindle motor of a hard disk drive - A hard disk drive with a spindle motor that rotates a disk. When the disk drive is exposed to low temperatures a current can be provided to the spindle motor to heat the motor. For example, a DC current can be provided to the spindle motor. The current flowing through the spindle motor coil generates heat. The current can be provided for a predetermined time interval to sufficiently heat the spindle motor so that the fluid bearings of the motor can operate. The current is terminated and then an AC current is provided to the spindle motor to cause motor rotation. | 2009-08-06 |
| 20090195924 | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the same - Embodiments of the present invention help allow accurate control of the magnetization reversal in a magnetic recording layer in small reversal units, whereby high-density recording can be achieved. According to one embodiment, by forming an intermediate layer having a granular structure similar to that of the magnetic recording layer below the magnetic recording layer, a continuous crystal grain boundary is formed at the interface between the magnetic recording layer and the intermediate layer, thereby preventing incomplete formation of the crystal grain boundary found in the initial growth layer of the magnetic recording layer. The intermediate layer comprises a non-magnetic alloy comprising Co and Cr as its main components and an oxide such as Al, Cr, Hf. Mg, Nb, Si, Ta, Ti and Zr. Further, the average content of the oxygen element in the intermediate layer is in the range from 6 at % to 20 at %. | 2009-08-06 |
| 20090195925 | PATTERNED MAGNETIC RECORDING MEDIA, STAMPER FOR MANUFACTURE OF PATTERNED MAGNETIC RECORDING MEDIA, METHOD OF MANUFACTURING PATTERNED MAGNETIC RECORDING MEDIA, AND MAGNETIC RECORDING/REPRODUCTION APPARATUS - According to one embodiment, a patterned magnetic recording media has a magnetic recording layer and a protective layer formed on a substrate, in which the magnetic recording layer including a magnetic material patterned in tracks and a nonmagnetic material filled in between the tracks in a data area, and has a recessed portion formed in an area within 1 mm from an outer media end and extending to the media end. The recessed portion being formed 1 to 50 nm deeper than the data area. | 2009-08-06 |
| 20090195926 | Removable hard-disk structure without screws - The present invention relates to a removable hard-disk structure without screws at least comprising a housing, a first elastic arm, a second elastic arm and a removable component. The housing having a placing space is connected to an opening end to enable the hard disk be placed into the placing space, and a door plate is further installed at the opening end to avoid the hard disk departing from the housing. The first and the second elastic arms are installed at the top surface and two side surfaces respectively, and these elastic arms are cantilever type and extend a pressing end into the placing space, which holds and presses the hard disk, and the hard disk is correctly being placed into the placing space. The removable component has a connecting end which is connected into the placing space, as the hard disk is placed in the placing space, the removable component fits the hard disk, and thus the hard disk can be easily removed by applying force on the removable end of the removable component. | 2009-08-06 |
| 20090195927 | DIGITALLY SHREDDING ON REMOVABLE DISK DRIVES - Embodiments provide unique and novel systems and methods for deleting data on removable disk drives. In embodiments, the removable disk drives store data that may be erased such that the data is considered destroyed but that allows the removable disk drive to be reused. The archiving system can determine which data should be erased. Then, the data is digitally shredded on sector boundaries of the removable disk drives such that the reclaimed memory cannot be read to decipher the erased data. In alternative embodiments, data is written across sector boundaries such that two or more files may occupy a single sector. A journal area, in embodiments, allows for copying the data in a sector with two or more files, digitally shredding the sectors in the removable disk drive, and rewriting the data that was not to be digitally shredded to the original location of the data. | 2009-08-06 |
| 20090195928 | MAGNETIC DISK APPARATUS - A magnetic disk apparatus includes a non-volatile memory for saving read data and write data transmitted from a host. The magnetic disk apparatus includes a non-volatile memory that saves read data and write data transmitted from a host. The non-volatile memory has a host designated data area that saves host designated data designated by the host, and an independent data area that independently saves data other than the host designated data wherein the independent data area comprises a read data area that saves read data based on a read request command transmitted from the host and a write data area that saves write data based on a write request command. | 2009-08-06 |
| 20090195929 | METHOD OF MANUFACTURING DISCRETE TRACK RECORDING MEDIUM AND DISCRETE TRACK RECORDING MEDIUM - According to one embodiment, a method of manufacturing a discrete track recording medium includes forming protruded magnetic patterns on a substrate, and repeating processes of depositing a nonmagnetic material so as to be filled in recesses between the magnetic patterns and etching back the nonmagnetic material two or more times with rotating the substrate in a plane thereof by an angle less than one revolution. | 2009-08-06 |
| 20090195930 | MAGNETIC RECORDING SLIDER WITH FLEX SIDE PADS - A system according to one embodiment comprises a slider having an air bearing surface side and a flex side, the flex side being positioned on an opposite side of the slider as the air bearing surface side; electrical pads on the flex side of the slider; and a heating device in electrical communication with the electrical pads, where the heating device comprises a least one optical element A method according to one embodiment comprises positioning pads of a heating device towards pads on a slider; detecting an impedance in a circuit including the pads of the heating device; moving the heating device relative to the slider to minimize the impedance; and coupling the heating device to the slider. Additional systems and methods are provided. | 2009-08-06 |
| 20090195931 | HEAD SLIDER AND METHOD OF MANUFACTURING HEAD SUSPENSION ASSEMBLY - A method of manufacturing a head suspension assembly for mounting a head slider on a suspension includes an irradiating light step, acquiring position information step and head slider mounting step. The irradiating light step is the step of irradiating light on a protective film and a marker at an incidence angle θ. The acquiring position information step is the step of acquiring position information of the marker by measuring reflected light from the protective film and that of the marker. The head slider mounting step is the step of mounting the head slider at a predetermined position of the suspension by using the difference of the intensity of reflected light from the protective film and that of the marker. | 2009-08-06 |
| 20090195932 | Method and apparatus for an air bearing surface in a hard disk drive using at least one patterned disk surface - Estimating methods and apparatus are disclosed for the patterned flying height of an air bearing surface over a patterned surface from the flying height over a smooth surface minus a flying height delta based upon the patterned surface. A hard disk drive is disclosed including the air bearing surface over a rotating disk surface that at least partly includes a patterned surface. A slider with the air bearing surface is disclosed for use over the patterned disk surface. Also disclosed: a head gimbal assembly including the slider and a head stack assembly coupling through the head gimbal assembly to position the slider. | 2009-08-06 |
| 20090195933 | HEAD ASSEMBLY - A head assembly for writing or reading information to or from a recording medium. The head assembly includes a suspension having an electrode pad; a mounting member placed on the suspension; a head mounted on the mounting member and having an electrode, for writing or reading information; and a first bonding member made of a hot-melt adhesive and fixing the electrode to the electrode pad. | 2009-08-06 |
| 20090195934 | DEVICE AND METHOD FOR MANUFACTURING SPRING MEMBER - A spring member manufacturing device that manufactures the spring member by laser irradiation includes a laser irradiation unit including a plurality of laser irradiation devices that perform predetermined laser irradiation with respect to the spring member. In the spring member manufacturing device, the laser irradiation devices are configured so that laser irradiated conditions different from each other are preset for the respective laser irradiation devices, and are arranged so that the respective irradiated positions do not overlap each other. The laser irradiation apparatus is constituted by combining laser irradiation devices having laser irradiation conditions being 2 to the (n−1)th power, n being a positive integer,of predetermined minimum adjustment amount for adjusting load on the spring member. The combination of the laser irradiation devices are selected in accordance with load adjusting amount required for the spring member. | 2009-08-06 |
| 20090195935 | SUSPENSION INTERCONNECT AND HEAD GIMBAL ASSEMBLY INCLUDING THE SAME - A suspension interconnect of a head gimbal assembly (HGA) includes a ground layer; a base layer formed of a dielectric material and disposed on the ground layer; a pair of read traces and a pair of write traces which are formed of a conductive material, disposed on the base layer to extend so as not to short each other; and a cover layer which are formed of a dielectric material, disposed on the base layer and the traces and are to seal the traces, wherein the cover layer includes a read cover layer which is to seal the read traces, and a write cover layer which is separated from the read cover layer and to seal the write traces. | 2009-08-06 |
| 20090195936 | DISK DRIVE SERVOING OFF OF FIRST HEAD WHILE DETERMINING FLY HEIGHT FOR SECOND HEAD - A method is disclosed for selecting a dynamic fly height (DFH) control setting for a head in a disk drive, the disk drive comprising a plurality of disk surfaces and plurality of respective heads. The method comprises servoing a first head over a first disk surface in response to servo data recorded on the first disk surface, adjusting a DFH control setting for a second head, and while servoing the first head over the first disk surface, detecting whether the second head has contacted a second disk surface. | 2009-08-06 |
| 20090195937 | Actuator latch apparatus for disk drive - An actuator latch apparatus for a disk drive, having a notch positioned at a first end portion of the swing arm, a latch lever rotatably installed in a base member, a first core provided on a second end portion of the swing arm, and a second core provided at a counterbalance of the latch lever. The first and second cores apply a torque to the swing arm and latch lever, respectively, in a first direction by a magnetic force of the magnet. The latch lever has a latch pivot, a latch arm provided at a first side of the latch pivot and having a hook to be caught by the notch when the actuator is locked, and the counterbalance provided on a second side of the latch pivot. The latch arm of the latch lever is elastically deformed when contacted by the swing arm during parking of the head. | 2009-08-06 |
| 20090195938 | Piezoelectric micro-actuator, head gimbal assembly and its assembling method, and disk drive device with the same - A PZT micro-actuator for a head gimbal assembly includes a pair of separate PZT elements and each PZT element has a body and a plurality of electrical pads. The body has at least two electrode-piezoelectric combination layers laminated together. The at least two electrode-piezoelectric combination layers are physically connected with but electrically isolated from each other. Each electrode-piezoelectric combination layer has at least two of the electrical pads thereon. The electrical pads extend out from the body of the corresponding PZT element. All the electrical pads of each PZT element are offset a predetermined distance therebetween to be electrically isolated. The present invention also discloses a head gimbal assembly (HGA) with the PZT micro-actuator, an assembling method for the head gimbal assembly and a disk drive unit having such HGA. | 2009-08-06 |
| 20090195939 | OPTIMIZATION OF TWO DIMENSIONAL ELECTRON GAS STRUCTURES FOR MAGNETIC RECORDING SENSORS - A Lorentz Magnetoresistive sensor having an ultrathin trapping layer disposed between a quantum well structure and a surface of the sensor. The trapping layer prevents charge carriers from the surface of the sensor from affecting the quantum well structure. This allows the quantum well structure to be formed much closer to the surface of the sensor, and therefore, much closer to the magnetic field source, greatly improving sensor performance. A Lorentz Magnetoresistive sensor having a top gate electrode to hinder surface charge carriers diffusing into the quantum well, said top gate electrode being either a highly conductive ultrathin patterned metal layer or a patterned monoatomic layer of graphene. | 2009-08-06 |
| 20090195940 | MAGNETIC HEAD AND MULTILAYERED CIRCUIT - In the magnetic head, terminal sections for mutually electrically connecting layers in the multilayer structure can be formed without forming raising layers. The magnetic head having a multilayer structure comprises: an upper shielding layer; a lower shielding layer; a magnetoresistance effect element section provided between the shielding layers; a magnetic pole; terminal sections mutually electrically connecting layers of the multilayer structure; and a first low-thermal expansion material layer composed of an insulating material, and each of the terminal sections has a multilayer structure comprising: a second low-thermal expansion material layer composed of a material which is the same as that of the first low-thermal expansion material layer; and a plurality of electrically conductive layers. | 2009-08-06 |
| 20090195941 | Patterned MR device with controlled shape anisotropy - A magnetic sensor with increased sensitivity, lower noise, and improved frequency response is described. The sensor's free layer is ribbon shaped and is closely flanked at each long edge by a ribbon of magnetically soft, high permeability material. This side pattern absorbs external field flux, concentrating it to flow into the sensor's edges to promote larger MR sensor magnetization rotation. | 2009-08-06 |
| 20090195942 | Effect of a loss of a reactive impedance of a transformer, when secondary windings of the transformer are short circuited. The Method and the Device for a reduction of a short circuit currents - Transformers, like series reactors, have the quality to limit the short-circuit currents to values determined by the transformer's impedance which consist of the resistance and the inductive reactance. | 2009-08-06 |
| 20090195943 | Overvoltage Protection Circuit with Reduced Sensitivity to Process Variations - An overvoltage protection circuit includes a shunt circuit adapted for connection to at least one circuit node to be protected from an overvoltage condition and a voltage generator coupled to the shunt circuit. The shunt circuit is selectively activated as a function of a control signal supplied to the shunt circuit. The voltage generator is operative to generate the control signal for activating the shunt circuit during the overvoltage condition. The control signal has a level which varies in a manner that at least partially changes offsets in activation threshold of the shunt circuit. | 2009-08-06 |
| 20090195944 | ELECTROSTATIC DISCHARGE PROTECTION - An electrostatic discharge (ESD) protection device ( | 2009-08-06 |
| 20090195945 | ESD-detector - The invention relates to a method for reducing the adverse effects of electrostatic discharge events occurring in a handheld device. The invention involves the steps of enabling a detector for detection of an electrostatic discharge event in the handheld device, detecting the electrostatic discharge event which has affected the handheld device, generating an event signal in response to the electrostatic discharge event, and applying the event signal to the detector, retrieving status information from circuits and components in the handheld device, analysing the event signal and the status information, and taking an action based on the analysis to mitigate any adverse effects of the detected electrostatic discharge event. | 2009-08-06 |
| 20090195946 | Electrostatic Discharge Protection Using an Intrinsic Inductive Shunt - In one embodiment of the present invention, an electrostatic discharge protection circuit provides efficient electrostatic discharge protection to an RFIC. The circuit includes several parts such as an inductor coupled from a first rail to an internal node. A power amplifier transistor having a transconductance control node is coupled to internal circuitry, a first terminal coupled to a second rail, and a second terminal coupled to an internal node. The circuit also comprises a pad coupled to an internal node, and this pad is capable of being coupled to off chip systems such as an antenna. The power amplifier transistor serves as the active device for an RF power amplifier. The inductor serves as one of either a bias inductor or a tank inductor for the RF power amplifier. Additionally the inductor acts as a low impedance path to the first rail to protect the power amplifier transistor during an ESD pulse. | 2009-08-06 |
| 20090195947 | PROTECTIVE CIRCUIT - A protective circuit connected between a terminal of a semiconductor integrated circuit and ground (GND), comprises: a first diode having an anode connected to the terminal of the semiconductor integrated circuit; a second diode having an anode connected to GND and a cathode connected to the cathode of the first diode; a transistor having a collector or drain connected to the terminal of the semiconductor integrated circuit, and an emitter or source connected to GND; and at least one third diode connected in series in a forward direction from the cathode of the first diode toward the base or gate of the transistor. | 2009-08-06 |
| 20090195948 | METHODS FOR MAKING A STARTING SUBSTRATE WAFER FOR SEMICONDUCTOR ENGINEERING HAVING WAFER THROUGH CONNECTIONS - The invention relates to a method of making a starting substrate wafer for semiconductor engineering having electrical wafer through connections ( | 2009-08-06 |
| 20090195949 | INTEGRATED CIRCUIT WITH ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT - An integrated circuit with an electrostatic discharge protection circuit includes a first power pad, a second power pad, at least a circuit module, and a power clamp circuit. The circuit module includes a signal pad, an internal circuit and a first bipolar transistor. A first parasitical resistance is coupled between a collector of the first bipolar transistor and the second power pad. There is at least a metal-oxide semiconductor (MOS) transistor and at least a first parasitical bipolar transistor included within the power clamp circuit. | 2009-08-06 |
| 20090195950 | NETWORK COMMUNICATION PROCESSING APPARATUS WITH ESD PROTECTION - The invention discloses a network communication processing apparatus capable of processing the cable discharge event. The network communication processing apparatus comprises an electrostatic protection circuit coupled between two signal pins used for transmitting/receiving the network signal on a cable. When the cable discharge event occurred on the cable, the electrostatic protection circuit will be turned on so that the two signal pins are short together to discharge back the electrostatic signal to the cable. | 2009-08-06 |
| 20090195951 | Method and Apparatus for Improved Electrostatic Discharge Protection - An ESD protection circuit having a triggering device, an ESD device and a circuit device coupled between the triggering device and the circuit device such that the circuit device conducts current only in one direction between the ESD device and the triggering device so the ESD device is in an active state for duration longer than time constant of the triggering device. | 2009-08-06 |
| 20090195952 | Method and Apparatus for Protecting Against Reverse Current Flow - A system for protecting against reverse current flow in an output module of an Industrial Process Control System includes a transistor that is driven by a control signal and a current monitor arranged to monitor a current through the transistor. The system includes a processor that is arranged to receive the monitored current and to generate the control signal in dependence upon the monitored current. The processor is configured to turn off the transistor if a reverse current is detected in the transistor. Extension of the system provides a power feed combiner that is protected against reverse current flow. | 2009-08-06 |
| 20090195953 | Power IC with an over-current protection circuit and method thereof - A power IC with an over-current protection receives an input voltage and converts the input voltage into an output voltage to a load. The present invention controls a power transistor to provide an output current to the load, and uses the output control unit to control the power transistor. Furthermore, the over-current protection circuit has a constant current limit threshold and a fold-back current limit threshold for controlling the power transistor. When the output current is larger than the constant current limit threshold, the output current is clamped to a constant current value to descend the output voltage to a rated value. When the output current is larger than the fold-back current limit threshold, the output current is limited to a low current value to descend the output voltage to zero. Thereby, the inner circuit of the power IC and the load are protected. | 2009-08-06 |
| 20090195954 | PEAK CURRENT LIMITING APPARATUS - The present disclosure is related to a peak current limiting apparatus of the present disclosure comprising a trigger element serially connected between a power supply source and the load, diverting a fault current to other paths connected in parallel when the fault current exceeding a threshold is generated, a main contact switch serially connected between the trigger element and a load, a driving coil connected in parallel with the trigger element, and generating a repulsive force in response to the fault current to detach a contact point of the main contact switch, and a peak limiting impedance element serially connected between a connection node between the trigger element and the main contact switch and the driving coil, and limiting a first peak level of the fault current flowing through the driving coil to a predetermined level. | 2009-08-06 |
| 20090195955 | Buoyant grounding terminal electrode apparatus for lightning protection - The subject invention pertains to a method and apparatus for lightning protection for a vessel or structure operated on a fluid such as water. In a specific embodiment of the subject invention, a sailboat mast or lightning rod serves to collect the lightning charge and a flexible conductive wire is attached to the mast or lightning rod which goes down over the side of the vessel and to the water level. A grounding electrode is at the end of the wire and has a buoyant material on or near the grounding electrode such that the grounding electrode is substantially kept at the surface of the water. The grounding electrode and buoyancy may also serve to allow the grounding electrode to hydrodynamic plane at the water surface if the vessel or structure is moving through the water. The buoyancy may place portions of the grounding electrode both above or below the water line and the buoyancy keeps the electrode substantially positioned with respect to the water surface even if the vessel or structure is heeled over such as can be the case of a sailboat which is sailing or if there is wave action. | 2009-08-06 |
| 20090195956 | Low Bypass Fine Arrestor - A fine arrestor having a body with a bore there through, an inner conductor within the bore, an inner conductor capacitor within the bore coupled between a surge portion of the inner conductor and a protected portion of the inner conductor, and an inner conductor inductor within the bore coupled electrically in parallel with the inner conductor capacitor. A first shorting portion coupled between the surge portion of the inner conductor and the body and a second shorting portion coupled between the protected portion of the inner conductor and the body, for conducting a surge to ground. Also, other coaxial in-line assemblies may be formed incorporating the inner conductor cavity for isolation of enclosed electrical components. | 2009-08-06 |
| 20090195957 | POWER CAPACITOR - A power capacitor is described herein. The power capacitor includes a housing and at least one capacitor winding. The power capacitor also includes at least one mechanical spring clement between the housing and the at least one capacitor winding. | 2009-08-06 |
| 20090195958 | METHOD AND SYSTEM FOR VARACTOR LINEARIZATION - Aspects of a method and system for varactor linearization are provided. In this regard, a relationship between control voltage and capacitance of a variable capacitor may be controlled utilizing a plurality of bias voltages communicatively coupled to a corresponding plurality of bias terminals of said variable capacitor. The variable capacitor may comprise a plurality of two-terminal unit varactors and a first terminal of each unit varactor may be coupled to an RF terminal of the variable capacitor, a second terminal of one of the unit varactors may be coupled to the control voltage, and a second terminal of each of the remaining unit varactors may be coupled to one of the bias voltages. The bias voltages may be generated via a resistor ladder and/or via the resistive nature of a portion of semiconductor substrate. The bias voltages may linearize the relationship between the control voltage and the capacitance. | 2009-08-06 |
| 20090195959 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING SAME - A portable electronic device includes a housing, a display device exposed by the housing, an input device for receiving user-input, a plurality of sensors on the housing for detecting touches on the portable electronic device, and functional components housed in the housing. The functional components include a memory device and a processor operably connected to the sensors, the display device the input device, and the memory device. | 2009-08-06 |
| 20090195960 | Electronic Device and Production Method Thereof - Electronic device | 2009-08-06 |
