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| Patent # | Description |
|---|---|
| US-6,084,749 |
Disk drive apparatus A disk drive apparatus comprises a flat stepping motor for moving a head assembly, which is disposed under a disk cartridge in the inserted state thereof. |
| US-6,084,748 |
Magnetic disc apparatus with a magnetic space member A magnetic disc apparatus capable of selectively driving at least two types of the magnetic discs having signal recording portions on their major surfaces and... |
| US-6,084,747 |
Magnetic head device A magnetic head device in which, if a rotated magneto-optical disc is subjected to surface deviations, a slide contact member can have a sliding contact with the... |
| US-6,084,746 |
Magnetic head device There is disclosed a magnetic disc device wherein temperature increase in the head IC chip can effectively suppressed. The magnetic head device comprises a... |
| US-6,084,745 |
Peltier junction cold trap for the reduction of head stiction A cold trap assembly having Peltier Junction assembly is provided to reduce the head stiction between a disc drive head and a disc. The Peltier Junction assembly... |
| US-6,084,744 |
Actuator assembly mounted disc snubber Apparatus for protecting a disc drive from damage due to non-operational mechanical shocks, the disc drive comprising a rotatable disc having an inner radius and... |
| US-6,084,743 |
Magnetic recorder apparatus with reduced debris accumlation on the
recorder head and slider A common cause for catastrophic failure in a magnetic disk storage system is due to the collection of debris on the slider/head assembly. Two factors... |
| US-6,084,742 |
Drive control apparatus for a disk drive A processing unit for effecting speed control in a drive control apparatus includes a storing unit having a first table which stores discrete values having... |
| US-6,084,741 |
Method for preventing head collision when detection of servo
synchronizing signals fails A method for preventing a head from colliding with a peripheral mechanical unit when the detection of servo synchronizing signals of a constant number fails. The... |
| US-6,084,740 |
Optical servo system for a tape drive The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading... |
| US-6,084,739 |
Write synchronization system on a headerless format magnetic disk device A write synchronization system in a headerless format magnetic disk device. The system transmits encoded synchronization signals containing disk administration... |
| US-6,084,738 |
Writing servo information to a disc drive at a constant density An apparatus and associated method are disclosed for storing servo information on a rotatable disc of a disc drive at a frequency that varies for each track... |
| US-6,084,737 |
Magnetic playback system A magnetic playback system wherein, during high-speed playback, the speed of rotation of a drum motor is controlled so that the data rate of the playback signal... |
| US-6,084,736 |
Reading device for reading identification information of a cartridge
storing recording medium,... A reading device for reading identification information of cartridges comprises a judging circuit for judging whether the cartridge has an identification... |
| US-6,084,735 |
Magnetic tape drive with function to select magnetic head There is provided a magnetic tape drive capable of attaining a stable read-out output value of information even if a tracking displacement occurs. The magnetic... |
| US-6,084,734 |
Data recovery using targeted ECC correction An apparatus for correcting read errors in a disk drive is disclosed. In one embodiment, the apparatus includes circuitry for determining that an undesired... |
| US-6,084,733 |
Storage device and error recovery method executing a plurality of error
recovery routines based on error type A storage device is described which has a plurality of different error recovery routines which are are divided into groups. When an error occurs, specific... |
| US-6,084,732 |
Method of selecting zone lay-out of a hard disk drive on basis of
head/recording medium performance A method of selecting a zone lay-out of a hard disk drive on the basis of head/recording medium performance, which method includes (a) setting a reference... |
| US-6,084,731 |
Disk-like information recording medium, information
recording/reproducing apparatus, and synchronizing method... In an information recording/reproducing apparatus, frame synchronization is speedily performed when initialization is executed or the recording surfaces are... |
| US-6,084,730 |
Information transmission system using data compression and/or error
detection An information transmission system using data compression and/or error detection includes an information compression circuit for compressing digital information... |
| US-6,084,729 |
Storage device for reliably maintaining data in a reproducible state for
a long period of time A time counting device, a cache memory and a copy control circuit are added to a conventional disk drive so that recorded information is copied periodically and... |
| US-6,084,728 |
Method of recording magnetic information A magnetic track on a roll of photographic film is divided into a leader track on the forward end part of the film and a frame track corresponding to each frame,... |
| US-6,084,727 |
All-reflective field-switching optical imaging system An all-reflective field-switching optical imaging system includes an optical beam coincident with an optical axis and forming a nominal pupil, a pupil-reimaging... |
| US-6,084,726 |
Optical pickup actuator for both a compact disc and a digital video disc A yoke includes a shaft upwardly protruding from the bottom and a plurality of magnets mounted at a certain interval along the inner periphery surface of the... |
| US-6,084,725 |
Noncircular lens positioning structure and its method A structure for positioning a plurality of noncircular lenses relative to a lens holding frame which holds the noncircular lenses precisely. The structure... |
| US-6,084,724 |
Glass coated cemented plastic doublets and method for making A lens component comprising a first plastic lens element having a thin glass coating and a second lens element cemented to the glass coated surface of the first... |
| US-6,084,723 |
Exposure apparatus The present invention relates to an exposure apparatus having a high-performance projection optical system having a relatively large numerical aperture and... |
| US-6,084,722 |
Zoom lens of rear focus type and image pickup apparatus A zoom lens of the rear focus type having an increased range with the back focal length long enough to accommodate a color separation prism, includes, in order... |
| US-6,084,721 |
Zoom lens A zoom lens has, in succession from the object side, a first lens unit fixed during a focal length change and having positive refractive power, a second lens... |
| US-6,084,720 |
Small-sized real image mode zoom finder A real image mode zoom finder includes, in order from the object side, an objective optical system with positive refracting power having a first lens unit with... |
| US-6,084,719 |
Projection lens A projection optical system includes, in order from a first conjugate point side of longer distance to a second conjugate point side of shorter distance, a first... |
| US-6,084,718 |
Method and apparatus for high energy propagation back focus control A method and apparatus for adjusting the location of the back focus of a lens while maintaining the primary focal point location thus eliminating the need to... |
| US-6,084,717 |
Laser beam splitter An apparatus that efficiently and accurately splits a laser beam input into eight or more outputs where the beam energies of the output beams are within ten and... |
| US-6,084,716 |
Optical substrate inspection apparatus A single light emitted from a laser source is split into multiple beams. The multiple beams are illuminated by a multi-beam scanner to scan a substrate of... |
| US-6,084,715 |
Image-forming optical system and apparatus using the same A compact, thin and low-cost image-forming optical system having an optical low-pass filter, and an apparatus using the image-forming optical system. The... |
| US-6,084,714 |
Polarizing illumination device and projection display device A technique for preventing a decrease in the amount of effective polarized light that emerges from a polarizing conversion element array is provided. To this... |
| US-6,084,713 |
Lenticular optical system A lenticular optical system is described in which a composite image is viewable through a lens sheet from a first angle and an object or image placed at a... |
| US-6,084,712 |
Three dimensional imaging using a refractive optic design A method and apparatus for gathering full-field three dimensional data for a surface by directing light through a master grating and a projection lens onto a... |
| US-6,084,711 |
Folding portable laptop/notebook computer shade The Folding Laptop Computer Shade is a device designed to reduce the amount of ambient light adversely affecting the viewability of portable laptop/notebook... |
| US-6,084,710 |
Diffraction type filter having a wave length selectivity A diffraction grating with a wavelength selectivity having one sectional side formed like a step is disposed at a marginal region of a filter, and only a... |
| US-6,084,709 |
Delineator capable of reflecting oblique incident light beam A delineator easily recognized by the driver even when attached at a moderate curve of a road includes colorless transparent reflectors attached inclined by a... |
| US-6,084,708 |
Double-refracting planar plate arrangement and deep ultraviolet
.lambda./4-plate The invention is directed to a double refracting planar plate arrangement and a .lambda./4 plate suitable for deep ultraviolet light. The .lambda./4 plate or the... |
| US-6,084,707 |
Transmission-type screen There is disclosed a large-sized transmission-type screen used for a multi-image system. If the screen expands or contracts due to variations of the ambient... |
| US-6,084,706 |
High efficiency laser pattern generator A laser scanner includes an optical relay which reforms an image from a scan lens at a location that provides additional working distance. The optical relay... |
| US-6,084,705 |
Methods and apparatus for providing a near-IR emission suppressing/color
enhancing accessory device for plasma... The present invention is directed to methods and apparatus for enhancing the performance of visual display units which utilize plasma display panels. More... |
| US-6,084,704 |
Crosstalk suppression in a multipath optical amplifier A multi-amplification path optical amplifier including a first amplification path for propagating and amplifying a first in-band optical communication signal,... |
| US-6,084,703 |
Illumination system for high resolution display systems An optical system for a spatial light modulator display system. The system includes a light integrator (20), the image of which is to be reproduced on at least... |
| US-6,084,702 |
Thermochromic devices The invention is an energy efficient, thermochromic device for windows that allows sunlight or solar radiation into a building or structure when the ambient... |
| US-6,084,701 |
Electrochromic tin oxide Tin oxide doped with an electrochromically effective amount of a metal, e.g. antimony or niobium, which provides a color change when the doped tin oxide is... |
| US-6,084,700 |
Reflectance control of an electrochromic element using a variable duty
cycle drive An electronic circuit for an electrochromic element. In order to improve the response time of the electrochromic element and reduce the cost and complexity, a... |
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