Matches 101 - 150 out of 411 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
6882488 Method for magnetic recording on patterned multilevel perpendicular media using variable write current  
A magnetic recording method uses a patterned perpendicular magnetic recording medium where each magnetic block or island contains a stack of individual magnetic cells to providing multilevel...
6876547 Hard drive carrier  
A flexible drive carrier is disclosed. The drive carrier includes flexible elements that accommodate variations in sizes of hard drives as well as variations in computer chassis. The drive carrier...
6870699 System for improving performance writing streaming tapes  
A method for efficiently saving data to tape, preferably within the ANSI X3.27 standard format sends signals to the tape drive to allow the tape drive to buffer the required tape marks, which the...
6865044 Method for magnetic recording on patterned multilevel perpendicular media using thermal assistance and fixed write current  
A method for magnetic recording uses a fixed write current with thermal assistance to record on a patterned perpendicular magnetic recording medium. The patterned medium has magnetic blocks or...
6853985 Media information distribution and recording system, and apparatus and program-recorded medium for the system  
A media information distribution and recording system for distributing media information from a central apparatus to terminal apparatus through a network and for recording the media information on...
6831798 APPARATUS AND METHOD FOR REPRODUCING FIRST PARTIAL INFORMATION AND READING SECOND PARTIAL INFORMATION, WHICH PERMIT CONTINUOUS REPRODUCTION OF INFORMATION, INFORMATION RECORDING MEDIUM, AND REPRODUCTION PROGRAM  
A storage device stores a plurality of information, each having first and second partial information. A reading device reads the first partial information of one arbitrarily selected information to...
6822820 Apparatus for detecting damage to the transducer head and/or tape guide of an interactive media device  
A data tape drive for recording information on the data tape of a tape cartridge has a transducer head with air bleed slots that define side walls, a tape guide, and a device for detecting damage...
6816330 Method for forming a magnetic pattern in a magnetic recording medium, magnetic recording medium magnetic recording device and photomask  
A method for forming a magnetic pattern in a magnetic recording medium, which includes irradiating energy beams to a magnetic recording medium having a magnetic layer on a substrate via a photomask...
6801379 Multi-magnetic recording head, and magnetic recording method and magnetic recording apparatus using the same  
The present invention provides a multi-magnetic recording head capable of increasing a magnetic recording density of information recorded on a magnetic recording medium. The multi-magnetic...
6794062 Magnetic transfer master medium  
In the performance of a magnetic transfer utilizing a magnetic transfer master medium, the occurrence of signal omissions in the magnetic data transferred to the slave medium is prevented. By...
6791803 Magnetic recording and reproducing method and magnetic recording medium employed for the same  
Provided are a method of magnetic recording and reproducing capable of permitting high density recording on magnetic recording media even under the condition of high data transfer rates and...
6791779 Disk drive having a connection-blocking device for use with a serial advanced technology attachment (SATA) power receptacle  
A disk drive having a connection-blocking device for use with a Serial Advanced Technology Attachment (SATA) power receptacle. The disk drive has a moveable head for writing and reading to and from...
6788484 PLL circuit, data detection circuit and disk apparatus  
A PLL circuit is disclosed which extracts phase difference information of a high S/N ratio from a readout signal uses the phase difference information for PLL control. An A/D converter samples the...
6787798 Method and system for storing information using nano-pinned dipole magnetic vortices in superconducting materials  
A method includes providing a superconducting material having pinning sites that can pin magnetic vortices within the superconducting material. The method also includes pinning one or more magnetic...
6785074 Preamble pattern and magnetic recording system using the pattern  
When jitter-like noise is prominent, sampling-phase control and amplitude control in a preamble pattern region is affected. It is possible to reduce effects of jitter-like noise without increasing...
6785072 Disc drive stiction/friction characterization utilizing piezoelectric microactuators  
A disc drive includes a base and a disc rotatably attached to the base. The disc drive also includes an actuator assembly rotatably attached to the base and a device for moving the actuator...
6781779 Magnetic recording medium, its production method and magnetic recording apparatus  
A magnetic recording medium for recording information by forming a magnetic pattern for information thereon by a magnetic head, which is a longitudinal magnetic recording medium having a coercive...
6778361 Non-symmetric helical scanner architecture for high track density  
A scanner ( 3-85, 8-85, 9-85 ) for use in a helical scan magnetic transducing apparatus has a periphery upon which plural read tranducing elements ( 3-82 ) and plural write transducing elements (...
6775084 Circuit and method for determining the phase difference between a sample clock and a sampled signal  
A circuit includes a buffer for receiving and storing two samples of a signal, and a phase calculation circuit for calculating from the samples a phase difference between one of the samples and a...
6775082 Digital VFO phase control device  
A digital VFO phase control device comprising: an output signal generation means for generating an output signal having the predetermined phase relationship with an input signal of the digital VFO...
6771442 Off-track interference emulator  
An apparatus and method for adding errors to magnetic data and then detecting the errors is revealed. The method includes providing a magnetic recording channel, reading and digitizing a stored...
6766000 Recordal service for voice communications  
A service system is provided for recording spoken passages exchanged between parties, for example, via the public telephone system. The service system is called into action preferably by the...
6765738 Magnetic reproducing apparatus and method for detecting a degree of wear of magnetic head element  
A method for detecting the degree of wear of a magneto-resistance (MR) effect type magnetic head element for reading a magnetic signal by use of a simple structure is disclosed. The degree of wear...
6765735 Method and apparatus for magnetic transfer  
In magnetic transfer performed to transfer an information signal such as a servo signal from a master medium to a slave medium, the degradation of transfer quality caused by a failure of close...
6747830 Perpendicular magnetic recording/reading apparatus  
The maximum external magnetic field of a magnetic recording medium longitudinal component which is applied to a magnetic recording medium is smaller than an absolute value H n of a magnetic field...
6744580 Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data  
A magnetic recording and/or reproducing apparatus performing efficient decoding to lower a decoding error rate. A magnetic recording and/or reproducing apparatus 50 includes a modulation SISO...
6731445 Disk drive having DPS logging sector  
A disk drive contains at least one sector that is protected from erasure, such as an erasure that may occur during reformatting. The sector(s) is used to store information related to one or more...
6711343 DATA RECORDING/REPRODUCING DEVICE, FILE MANAGING METHOD, FILE INFORMATION GENERATING METHOD, FILE MANAGING METHOD, MANAGEMENT INFORMATION GENERATING DEVICE, MANAGEMENT INFORMATION ANALYZING DEVICE, AND MEDIUM  
An apparatus comprising a transmission/reception device for transmitting/receiving data and command signals from a transmission line, a recording/reproducing device for recording data received from...
6707628 Head suspension assembly mounting nonvolatile memory and magnetic disk device  
A head suspension assembly 4 has an arm 17 supported so as to rotate, an elastically flexible suspension 16 having one end which is fixed to an end of the arm and the other end has a magnetic...
6687072 Disk apparatus and information processing system discriminative plural external electronic appliances  
A magnetic disk apparatus includes a requesting unit for requesting the magnetic disk apparatus to re-set a value of specification information capable of determining performance of the magnetic...
6671117 Magnetic writer for noise suppression in perpendicular recording media  
A transducing head for perpendicularly writing data to a magnetic medium having a recording layer and a soft magnetic underlayer comprises a perpendicular write transducer for writing data into the...
6671116 Magnetic recording system including magnetic recording medium having three-dimensional random orientation of axis of easy magnetization  
A magnetic recording system includes a magnetic recording medium including a magnetic layer, the magnetic layer being composed of magnetic grains, and a magnetic head including a recording unit and...
6665136 Recording heads using magnetic fields generated locally from high current densities in a thin film wire  
A method of recording information bits in a magnetic storage medium, the method comprising positioning a first conductor adjacent to a magnetic recording medium, the conductor having a width and a...
6654190 Flexible air bearing design system with independent profile mapping and height field definition for mask tiers  
A system for modeling air bearing designs for heads of a data storage system The modeling system includes user definable surface contours for mask surfaces. The system generates integrated surface...
6639746 Method and apparatus for recording/reproducing multi-channel data  
A disc recording/reproducing apparatus for recording/reproducing multi-channel data simultaneously on a recording medium, the apparatus including channel buffers for recording/reproducing...
6633445 Method and apparatus for electrically coupling components in a removable cartridge  
An information storage device ( 10, 510, 610, 710 ) includes a cradle ( 12, 512, 612, 712 ) which can removably receive a cartridge ( 11, 411, 511, 611, 711 ). The cartridge contains a rotatably...
6601046 Usage dependent ticket to protect copy-protected material  
A usage-limit is associated with each copy of copy-protected material. A conforming playback device determines how much usage has been made of the copy, and only plays the copy-protected material...
6594743 Disk-Cloning method and system for cloning computer data from source disk to target disk  
A disk-cloning method and system is provided for cloning computer data from a source disk to a target disk. This disk-cloning method and system can be utilized, for example, in the computer...
6594716 Mixed-signal single-chip integrated system electronics for data storage devices  
An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated...
6591283 Efficient interpolator for high speed timing recovery  
A data processing circuit includes a digital data source having an output carrying a sequence of digital signals. A pre-filter is coupled to the output of the digital data source. The pre-filter...
6579665 Thin-film magnetic recording head manufacture  
This invention relates to a multi-layer lithographically fabricated device used to produce improved thin-film recording heads. It further relates to a focused particle beam system for milling a...
6574060 Magnetic storage apparatus  
In a magnetic storage apparatus having a magnetic recording medium, a drive unit for driving this medium in a prespecified recording direction, a magnetic head assembly including a recorder section...
6535343 Multi-dimensionally oriented magnetic field information storage system  
A disk medium includes a substrate and a designed topography of individually magnetizable features formed on the surface of the substrate. At least a portion of the disk topography is formed from...
6535342 Apparatus, system and method for writing information onto magnetic media field of the invention  
A method of writing data onto magnetic thin film media commonly employed in magnetic disk drives at sub-ambient temperatures is disclosed. The method employs a thin film capacitor having a...
6522496 Storage unit  
This invention intends to provide a storage unit capable of improving data transmission efficiency and reducing a seek time. The storage unit of this invention comprises a read/write head for...
6519105 Recording medium and tape drive device  
When a magnetic tape cassette which may include a memory in cassette (MIC) device storing a system log therein is loaded, on the basis of a system log allocation flag read out from the magnetic...
6507889 Recording medium library device and control method thereof  
A cassette library ( 1 ) is provided with a driving apparatus ( 13 ), cassette housing shelves ( 14, 15 ) and a cassette carrier ( 16 ). A library controller ( 2 ) simulates as if driving...
6504665 Method and apparatus for magnetic recording  
To provide a magnetic recording method and apparatus which utilize a spin vortex as a recording unit and which enables high density recording, spin vortices ( 2 ) are recorded on a recording medium...
6504362 Process of measuring slide-reading of abutted-junction read heads  
Side-reading of an abutted-junction magnetic transducer is measured by constructing at least one microtrack having a transition density. The transducer is moved relative to the microtrack to...
6498697 Method and system of magnetic recording and reproducing with ultra-high density  
Method and system of perpendicular magnetic recording and reproducing with ultra-high density for use in computer storage, audio, video recording euipment. Marks, as logical “1”-s are recorded...
Matches 101 - 150 out of 411 < 1 2 3 4 5 6 7 8 9 >