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US20140086034 STORAGE MEDIA ASPERITY CHARACTERIZATION  
The present application discloses detecting an asperity on a storage media surface using two amplitude threshold crossings of an asperity detection signal within a preset timing window. The...
US20110051580 DISK PROTRUSION DETECTION/FLATNESS MEASUREMENT CIRCUIT AND DISK GLIDE TESTER  
The present invention relates to a disk protrusion detection/flatness measurement circuit and a disk glide tester, in which protrusion detection and average value calculation can be performed...
US20110102932 METHOD OF MANAGING DEFECT AND APPARATUSES USING THE SAME  
A method of managing a defect of a hard disk drive includes calculating a number of ECC symbols of every sector which becomes an object of a defect scan and setting a defect reference value based...
US20120176877 INSPECTION METHOD AND INSPECTION APPARATUS OF MAGNETIC DISK  
An inspection method and inspection apparatus of a magnetic disk are provided. A gliding test and a certification test are performed at the same time by simultaneously moving a head for the...
US20120113785 DISK POSITION SYSTEM AND METHOD  
A computing device and method determines a position of a disk when the disk works abnormally. The computer searches out problem disks by determining if each disk included in the just a bundle of...
US20140140182 Harmonic Ratio Based Defect Classifier  
The disclosure is directed to a system and method for detecting and classifying at least one media defect. A periodic pattern is written to a medium to yield at least one waveform. The magnitude...
US20090268576 METHOD OF HANDLING SERVO SECTOR DEFECT  
A method of handling a servo sector defect includes recognizing a first servo sector using a controller; determining whether the first servo sector has a defect; and when the first servo sector...
US20090196137 METHOD OF DETECTING BAD SERVO TRACK IN HARD DISK DRIVE  
A method of detecting a bad servo track of an HDD includes measuring servo AGC of each of servo sectors of a servo track requiring determination of badness, calculating statistic data with respect...
US20120207005 LOCKING MEDIA PUSHER  
A locking media pusher is coupled to a servo controlled stage and includes a protruding probe and a locking mechanism. The stage moves forward and backward along a base toward and away from a...
US20100020662 Automatic Unthread to Secure Tape From Sticking to the Head  
A system and method for automatically unthreading a tape. The system and method determine whether the drive being at the stop state could cause the tape sticking condition in future after a...
US20150117174 MEDIA AND DRIVE VALIDATION IN TAPE LIBRARIES  
A method for validating media and drives. The method includes receiving a validation request for a data storage tape in a library and, with the tape loaded into a predefined gold drive in the tape...
US20090316553 TAPE CONDITION IN A TAPE DATA TRANSFER APPARATUS  
A tape data transfer apparatus operable to determine a tape damage condition of a tape received in the apparatus by determining a value representative of a tape pack size of the received tape and...
US20110170392 STORAGE MANAGEMENT APPARATUS AND STORAGE MANAGEMENT METHOD  
A reference-capacity calculating unit calculates a reference capacity of each of storage devices storing therein data on the basis of an actual capacity of each storage device. A difference...
US20090003172 PLAYBACK DEVICE, RECORDING DEVICE, DISC MEDIUM, AND METHOD  
The present invention aims to simply showing to the user what operations are available with the combination of the disc medium type, the application format of the data recorded/to be recorded on...
US20070002712 Unbalanced disc detection and rotating speed control in disc reading apparatus  
A method for detecting an unbalanced disc in a disc reading apparatus includes the following steps. Firstly, a disc is loaded into the disc reading apparatus. Then, a start-up procedure is...
US20090285073 PATTERN TRANSFER APPARATUS AND PATTERN TRANSFER METHOD  
A pattern transfer apparatus includes a storage-medium-surface detecting unit that detects a foreign substance or defect on a surface of a storage medium and specifies a position and a size of the...
US20110255189 METHOD OF DETECTING TOUCHDOWN OF MAGNETIC HEAD USING TIMESTAMPS, AND MAGNETIC DISK DRIVE TO WHICH THE METHOD IS APPLIED  
According to one embodiment, a method of detecting contact of a magnetic head with a magnetic disk by changing the dynamic flying height of the magnetic head in a magnetic disk drive is disclosed....
US20110149706 HIGH SENSITIVITY GLIDE SENSOR USING FRICTIONAL HEATING  
A tool for testing a magnetic disk for use in a magnetic disk drive. The tool detects surface defects or asperities by detecting a change in electrical resistance corresponding to a temperature...
US20080212437 Switch Device, Information Processing Device, and Reproduction Device  
A reproduction system 100 includes a rotating body on which a rotary operation is conducted by a user, a rotary movement detector 810 that detects the rotation of the rotating body and outputs a...
US20050259542 Reproduction device and method, recording medium, and program  
The present invention relates to a playback apparatus and method, which are capable of reading streaming data recorded on an information recording medium in compliance with an FAT scheme...
US20070242583 METHOD AND APPARATUS FOR MEASURING SURFACE STRUCTURE OF A NEAR-FIELD OBJECT  
A method for measuring a surface structure of a near-field object is provided. A light source produces at least a first light beam and a second light beam; guiding the first light beam and the...
US20090252012 DEFECT INSPECTION METHOD AND DISK DRIVE USING SAME  
Provided are a disk defect inspection method and apparatus. The defect inspection method includes; determining an independent recording density value for disk defect detection in relation to disk...
US20090028024 RECORD CARRIER, RECORDING METHOD AN DPLAYBACK DEVICE FOR CONTROLLING COPYRIGHT  
When duplicating the record carrier the angle between the sync words S1 S2 can be preserved at the cost of a change in bit length, or the bit length can be preserved at the expense of changes in...
US20130308433 LOGGING DISK RECOVERY OPERATIONS IN A NON-VOLATILE SOLID-STATE MEMORY CACHE  
An apparatus includes a controller capable of being coupled to a magnetic data storage media and a cache. The cache includes non-volatile, solid-state memory. The controller is configured to...
US20090207711 INFORMATION RECORDING METHOD  
If the amount of information recorded on a user data area of a recording medium is less than a predetermined value when a finalize process is performed on the information recorded in the user data...
US20120182849 METHOD AND APPARATUS FOR CENTRING A DISK ON A SPINDLE, METHOD OF TESTING WITH A SPINSTAND AND SPINSTAND  
There is disclosed herein a method and apparatus for centring a disk on a spindle, a spinstand and a method of testing with a spinstand. The method of centring includes attaching the disk to the...
US20140269242 METHOD AND DEVICE FOR VERIFYING A SERVO PATTERN IN TAPE MEDIA  
A system and method for verifying a servo pattern in tape media include a tape drive unit which moves the tape media lengthwise across a read head. The tape drive unit is adapted to use a tape...
US20090262621 METHOD AND APPARATUS FOR INSPECTING A PATTERN SHAPE  
An apparatus for inspecting a pattern shape of a magnetic record medium or its stamper includes: a moving mechanism, on which an object to be inspected where a pattern is formed is placed and...
US20140146650 STORAGE TAPE ANALYTICS USER INTERFACE WITH MEDIA VALIDATION  
A method of accessing tape storage analytics data from tape libraries. The method includes generating a user interface on client devices. The user interface includes a first screen displaying...
US20100296379 ERROR CORRECTING CIRCUIT AND DISK STORAGE DEVICE  
According to one embodiment, an error correcting circuit includes: a marker decoder configured to sample 2-bit markers from a data string and, from a plurality of sample values of the 2-bit...
US20110080820 METHOD OF SETTING ZONE LAYOUT OF RECORDING MEDIUM, AND APPARATUS USING METHOD  
A data storage device determines a zone layout based on a quality evaluation factor. The zone layout is designed such that a measurement value of the quality evaluation factor for each track in...
US20110235490 AMPLITUDE-BASED APPROACH FOR DETECTION AND CLASSIFICATION OF HARD-DISC DEFECT REGIONS  
In a hard-disc drive, a defect region on the hard disc is classified as corresponding to either thermal asperity (TA) or media defect (MD) by generating two statistical measures. A first measure...
US20090135697 METHOD FOR DISTINGUISHING OPTICAL DISCS  
The invention is to provide a method for distinguishing optical discs, which first locks a focus on a data layer of an optical disc to cross the grooves and the lands of the optical disc, then...
US20100085855 METHOD AND DEVICE FOR DETECTING SHAPE OF SURFACE OF MEDIUM  
A defect generated during a nano-imprint process is inspected by a scatterometry method. The scatterometry method is to illuminate the surface of a medium with light having a plurality of wave...
US20090073836 Disk decision method and optical disk drive using the disk decision method  
A method of determining the type of disk loaded on an optical disk drive, and an optical disk drive using the method are provided. The disk decision method includes operations of detecting a...
US20120281515 DISC DRIVE SYSTEM  
A disc drive may provide data communications to a host using a universal serial bus (“USB”) interface. Activation of the USB interface may be triggered upon insertion of a disc into the disc...
US20110158073 OPTICAL CHECKING METHOD AND APPARATUS FOR DEFECTS IN MAGNETIC DISKS  
An apparatus for optically checking magnetic disk defects that makes possible more accurate determination of positions of minute defects by illuminating an area greater than a checkup area with an...
US20100265806 ROTATION ANGLE SENSOR  
A rotation angle sensor includes a rotation shaft, a yoke which is made from a magnetic permeable material and includes a first disk portion, a second disk portion and a connection portion...
US20090028025 Information processing apparatus and method, program, and recording medium  
An information processing apparatus which detects concomitant information associated with a time at which data satisfying a preset condition is supplied within a continuous period of time from...
US20100080101 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 servo automatic gain control values...
US20130142024 Distributed Field Self-test for Shingled Magnetic Recording Drives  
A method is described for allowing disk drives, such as shingle-written magnetic recording (SMR) drives, to be shipped for customer use with portions of the magnetic media being left untested. The...
US20090268575 Systems and Methods for Reducing Attenuation of Information Derived from a Defective Medium  
Various embodiments of the present invention provide systems and methods for data regeneration. For example, a method for data regeneration is disclosed that includes receiving a data input...
US20080159104 INFORMATION RECORDING MEDIUM EVALUATION METHOD, INFORMATION RECORDING MEDIUM, METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM, SIGNAL PROCESSING METHOD AND ACCESS CONTROL APPARATUS  
A method for rating an information recording medium according to the present invention includes the steps of: receiving a digital read signal, which has been generated based on an analog read...
US20120307616 QUICK ACCESS TO DISC MANAGEMENT INFORMATION  
The invention relates to a method and a recording device for easy and quick access to record carrier management information stored on the record carrier itself. The invention further relates to a...
US20120155238 STORAGE DEVICE AND INFORMATION CORRECTION METHOD  
An information correcting method includes: detecting a first pattern in a radial direction and a second pattern formed obliquely to the radial direction on a track traversing the first and second...
US20090040898 METHOD AND DEVICE FOR SIMULATING A MULTI-LAYER OPTICAL STORAGE MEDIUM  
A method, a device, and a computer-readable medium for simulating a multilayer optical storage medium are disclosed. A multiple-layer optical storage medium is simulated by using a set of multiple...
US20080123499 Image Recording Device and Image Recording-Control Method  
In an image-recording device using a disk-type recording medium generated under the DVD+RW standard, a disk information-acquisition unit 250 acquires information about a disk 49, a...
US20120188862 APPARATUS AND METHOD FOR CERTIFYING A MAGNETIC RECORDING DISK  
Apparatuses and methods for certifying a magnetic recording disk (102) are disclosed herein, in a described embodiment, the apparatus (100) comprises a certifier head (104) for testing the disk's...
US20090290462 SIGNAL PROCESSING DEVICE FOR OPTICAL DISC, INTEGRATED CIRCUIT, OPTICAL DISC DEVICE, AND OPTIMUM RECORDING FOCUS POSITION DETECTING METHOD  
An optical disc signal processing device includes a focus position determining section, wherein when test recording is performed while changing a focus position through a plurality of positions,...
US20140269243 TOPOGRAPHIC FEEDFORWARD SYSTEM  
A topography detection mechanism may measure surface height of a side read/write track while the read/write head is interacting with a current read/write track. A memory may store the measured...
Matches 1 - 50 out of 86 1 2 >