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Patent # Description
US-8,077,438 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...
US-8,077,437 Integrated circuits and power supplies
We describe a semiconductor-on-insulator integrated circuit die comprising a substrate bearing a power conditioning circuit, the power conditioning circuit...
US-8,077,436 CPP-type magnetoresistance effect element having three magnetic layers
A magnetoresistance effect element comprises: a magnetoresistive stack including: first, second and third magnetic layers whose magnetization directions change...
US-8,077,435 Current perpendicular-to-plane read sensor with back shield
Disclosed is a read head for reading data from a magnetic media. The read head includes a bottom magnetic shield layer, a top magnetic shield layer, and a read...
US-8,077,434 Perpendicular magnetic recording head having a recessed magnetic base layer
A method and system for providing a magnetic transducer having an air-bearing surface (ABS) are described. The magnetic transducer includes a base layer, a...
US-8,077,433 Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
A thin-film magnetic head is constructed such that a main magnetic pole layer having a magnetic pole end face on a side of a medium-opposing surface opposing a...
US-8,077,432 Disk stack assembly with spindle motor hub having improved disk-supporting flange
An improved disk stack assembly for a hard disk drive (HDD) includes a generally cylindrical hub with flange having a downward sloping conical flange surface....
US-8,077,431 Apparatus and method for reducing turbulence of airflow in a hard disk drive
A sickle-shaped disk drive spoiler for reducing turbulence of airflow in a hard disk drive is provided. The sickle-shaped spoiler is configured to direct...
US-8,077,430 System and apparatus for mass-balanced spoiler in disk storage devices
A system and apparatus for reducing flutter in disk drive spoilers positions the center of mass of the mean aerodynamic section of the spoiler at or ahead of...
US-8,077,429 Magnetic disk vibration-suppressing mechanism having shroud-narrowing gap
Embodiments in accordance with the present invention relate to greatly decreasing vibrations of a rotary disk at a portion where vibration on the disks is to be...
US-8,077,428 Disk drive correcting position error signal based on velocity of head
A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo sectors that define a plurality of servo tracks. A position...
US-8,077,427 Fly-height control using asynchronous sampling
In one embodiment, a hard-disk drive system performs fly-height control using a read-back mode and a loop-back mode. The read-back mode measures first and...
US-8,077,426 Magnetic disk centering method and system
A system and method are described for aligning a data axis of one or more circular data-bearing tracks on an annular surface region of a magnetic media-bearing...
US-8,077,425 Magnetic disk apparatus and information reproducing method
A magnetic disk apparatus includes a magnetic disk that includes a plurality of zones in which a plurality of tracks are arranged for each of circumferences of...
US-8,077,424 Transducer design with a sensor close to write pole
A magnetic device includes a read sensor, a writer and a synchronization sensor. The magnetic device is configured for writing information to and reading...
US-8,077,423 Fly-height touchdown detection circuits and methods
In one embodiment, the present invention includes an apparatus that includes a circuit that generates control information that controls a height of a read head...
US-8,077,422 Writing spirals based on servo tracks of a different sample rate
Methods, systems and computer program products for launching one or more reference spiral sets using different tracks are described. In some implementations, a...
US-8,077,421 Pole mismatch compensation via feedback control approach
A system including an error signal generating module to generate an error signal based on (i) back electromotive force sensed from a motor and (ii) a...
US-8,077,420 Method and apparatus for adaptive control and/or use of a vibration sensor in a hard disk drive
Apparatus and methods are disclosed for adaptive control and/or use of a vibration sensor in a hard disk drive (HDD). The HDD, an assembled circuit board and a...
US-8,077,419 Method and apparatus for adjusting a gain of a variable gain amplifier in a read channel module
A read-channel module including a VGA module to amplify a signal based on a variable gain, an ADC module to generate a sample based on the amplified signal, and...
US-8,077,418 Reducing thermal protrusion of a near field transducer in an energy assisted magnetic recording head
Methods of fabricating an energy-assisted magnetic recording (EAMR) head to compensate for a heat-induced protrusion of a near field transducer formed therein...
US-8,077,417 Skip block writing for bit patterned media write synchronization
A method for synchronizing writing to a bit patterned media includes: reading bits from skipped blocks on the bit patterned media, using timing of bits read...
US-8,077,416 Magnetic recording medium formatted with ROM and RAM regions
A magnetic recording medium has a RAM region and a ROM region. The RAM region includes a plurality of first tracks each having a first magnetic portion. The...
US-8,077,415 Preamp circuit including a loopback mode for data storage devices
A data storage device preamplifier circuit including (i) a write amplifier having an input and an output, and (ii) a read amplifier has an input and an output....
US-8,077,414 System and method for analyzing magnetic media surfaces for thermal erasures and other characteristics
Analyzing magnetic media surfaces for thermal erasures and other characteristics is described. The system includes a drive channel module configured to measure...
US-8,077,413 Adjustable pinhole for a laser scanning microscope
An adjustable pinhole, in particular for a beam path for illumination and/or detection in a laser-scanning microscope. The pinhole consists of at least two...
US-8,077,412 Lens barrel and imaging device
An interchangeable lens unit comprises a second lens group support unit, a focus lens, a focus lens support frame, and a focus drive unit. The second lens group...
US-8,077,411 Lens displacement mechanism using shaped memory alloy
A lens displacement mechanism using shaped memory alloy (SMA) applied to an auto-focusing lens module is disclosed. The lens displacement mechanism comprising...
US-8,077,410 Optical apparatus and image pickup apparatus provided with the optical apparatus
Provided is an optical apparatus including: two magnets which are constituent components of drive member for moving a lens holder (21); three balls (25); and...
US-8,077,409 Lens driving device and image forming apparatus
A drive mechanism includes a rotational cylinder capable of moving upon the optical axis, a cam part on a fixed member and a cam follower which is formed on the...
US-8,077,408 Lens barrel, lens driving apparatus, camera, and mobile information terminal
A lens barrel includes a plurality of lens groups each having at least one lens; a plurality of lens retaining frames which retain a corresponding one of the...
US-8,077,407 Lens array unit mounting structure
A lens array unit mounting structure mounts a lens array unit in a recess provided in a housing of an image reading device. The structure includes a right...
US-8,077,406 On-vehicle camera lens glass material and on-vehicle camera lens
An on-vehicle camera lens glass material satisfies at least one of conditions in which a measurement result in water resistance based on a powder method...
US-8,077,405 Optical article and method for producing the same
An optical article includes: an optical substrate, and a functional layer laminated on the surface of the optical substrate, the functional layer having a...
US-8,077,404 Optical unit
The present invention relates to an optical unit. The present invention further relates to the use of such an optical unit. Such an optical unit comprises, seen...
US-8,077,403 Lens barrel
A lens barrel has a first lens group, a second lens group, a third lens group, a first support frame for supporting the first lens group, a second support frame...
US-8,077,402 Imaging lens
It is to provide an imaging lens that can improve optical performance while reducing size and weight. An imaging lens includes, in order from an object side to...
US-8,077,401 Catadioptric imaging system
A catadioptric imaging system combines a rectifying mirror, a lens system and subsequent image processing. This approach can produce a small form factor desktop...
US-8,077,400 Thin type optical lens system for taking image
An optical lens system for taking image comprises three lens elements with refractive power, from the object side to the image side: a first lens element with...
US-8,077,399 Four-piece imaging lens module
A four-piece imaging lens module includes a fixed aperture diaphragm, a first lens, a second lens, a third lens and a fourth lens arranged from an object side...
US-8,077,398 Lens driving device comprising magnetic circuit with high magnetic efficiency
A lens driving device includes a lens holder including a tubular portion for holding a lens assembly, a driving coil fixed to the lens holder so as to position...
US-8,077,397 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...
US-8,077,396 Apparatus and system for providing a virtual display for a vehicle
A display unit for mounting in a vehicle is provided. The display unit includes an image generator. The display unit further includes a semi-reflective member....
US-8,077,395 Optical sheet, image source unit, display device, process for producing optical sheet, and method for...
An optical sheet is disposed on an observer side relative to an image source and includes a plurality of layers that control light emitted from the image source...
US-8,077,394 Glass lens array module with alignment member and manufacturing method thereof
A glass lens array module with alignment fixture and a manufacturing method thereof are revealed. A glass lens array is produced by multi-cavity glass molding...
US-8,077,393 Micro-optic security and image presentation system presenting a synthetically magnified image that appears to...
A film material utilizing a regular two-dimensional array of non-cylindrical lenses to enlarge micro-images, called icons, to form a synthetically magnified...
US-8,077,392 Composite optical element
The present invention relates to composite optical elements, and particularly to a composite optical element in which second and third optical components are...
US-8,077,391 Wavefront aberration measuring method, mask, wavefront aberration measuring device, exposure apparatus, and...
A wavefront aberration measuring device includes a mask placed in an object plane of a to-be-tested optical system and having a pattern including a pinhole...
US-8,077,390 Method of producing an optical element that has spatial variation in refractive index
A method of producing an optical element that has spatial variation in refractive index includes providing a curable liquid crystal composition; applying a...
US-8,077,389 Glass polarizer for visible light
A glass polarizer applicable to projection-type liquid crystal displays and the like and having an excellent transmittance and extinction ratio with respect to...
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