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| Number | Title | Issue Date |
| 8184951 | Recording and reproducing apparatus A recording and reproducing apparatus prevents, when a format instruction is given via an on-screen menu in an image format of one of HDTV and SDTV standards and the content item to be erased is in the other standard, erroneous erasure of a content item on a recordi... | 05/22/2012 |
| 8174785 | Method and apparatus for detecting rapid off track following and protecting nearby tracks from rapid off track writing in a hard disk drive This application discloses a hard disk drive using a self-resonant frequency band of a Voice Coil Motor far above its operational frequency band to predict Rapid Off Track events before its head stack assembly can deliver the disruption to the slider writing a track... | 05/08/2012 |
| 8154814 | Method of refreshing data stored on a disk According to one embodiment, a disk comprises an area which comprises a plurality of data tracks and is partitioned into a first segment and a plurality of second segments. A controller detects that a segment to be refreshed next is one of the plurality of second se... | 04/10/2012 |
| 8130460 | Apparatus and method for writing data on a tape medium An apparatus and method are disclosed for writing data accumulated in a buffer on a tape medium in such a way that overwriting is prevented. The apparatus comprises a write unit configured for writing first data in a first position extending over a first track and a... | 03/06/2012 |
| 8054572 | Data storage drive overwrite protection of non-worm cartridges Protection against data overwrite of a rewritable non-WORM data storage cartridge is provided by a data storage drive operating cartridge data overwrite protection procedures independent of, or not withstanding, the absence of cartridge controls relating to data ove... | 11/08/2011 |
| 8014097 | Disk drive with adaptive counting of writes to the data tracks for minimizing the effect of adjacent track encroachment A hard disk drive (HDD) uses adaptive counting of writes to the data tracks to minimize the effect of adjacent track encroachment (ATE). The tracks are grouped into segments and a counter is associated with each segment, but the number of tracks in a segment varies ... | 09/06/2011 |
| 7965465 | Techniques for storing shingle blocks in a cache memory using a data storage device A data storage apparatus includes a data storage medium, a write element, a non-volatile cache memory circuit, and a controller circuit. The controller circuit is configured to record data on the data storage medium in groups of overlapping tracks using the write el... | 06/21/2011 |
| 7920352 | Magnetic disk apparatus and data storage method A magnetic disk apparatus that uses a head to write data in a plurality of unit areas arranged in an adjacent relationship to each other on a surface of a magnetic disk, and includes: a first recording section that records, in a RAM, the position of a unit area whic... | 04/05/2011 |
| 7907364 | Disk drive including a delay circuit to provide a delayed reset signal A disk drive including a delay circuit to provide a delayed reset signal is disclosed. The disk drive includes a head to perform write and read operations to and from a disk and a disk controller that is coupled to the head to control the write and read operations p... | 03/15/2011 |
| 7864476 | Low track-per-inch (TPI) zone with reduced need for adjacent-track-erasure (ATE) refresh Methods and systems are shown that specify at least one low track-per-inch (TPI) region and at least one normal TPI region on a disk. The low TPI region may be used to store information that may be rewritten frequently. The normal TPI region may be used to store inf... | 01/04/2011 |
| 7852588 | Disk drive adjusting gain of shock detector relative to resonant frequency amplitude A disk drive is disclosed comprising a disk, a head actuated radially over the disk, and control circuitry including a shock detector. The control circuitry is operable to detect a resonant frequency amplitude (RFA) of the shock detector, adjust the shock detector i... | 12/14/2010 |
| 7826162 | Apparatus and method for sensing an external magnetic field to protect a perpendicular magnetic recording (PMR) hard disk drive A hard disk drive is disclosed including a voice coil motor and a magnetic sensor communicating with a control circuit. A magnetic sensor reading is created and used to stop access operations in response to the reading of an external magnetic field that may be stron... | 11/02/2010 |
| 7764455 | Method and apparatus for detecting defects of servo data in a disk drive According to one embodiment, in a disk drive having a disk medium that has a plurality of sectors, in each of which servo data containing a servo-burst patterns is recorded, a CPU calculates the reliability value of a sector to be evaluated, from a ratio of the sum ... | 07/27/2010 |
| 7760456 | Data protection based on system vibration modes An aspect of the present disclosure relates to implementing a data protection mode based on system vibration modes in a data supported system. An exemplary system vibration mode is associated with an operating mode of the data supported system. The data protection m... | 07/20/2010 |
| 7760457 | Resonant channel for head-to-disc contact vibrations A channel senses head-to-disc contact vibrations in a vibrational noise spectrum produced in a mass storage device. The channel includes a suspension system with a suspension modal resonance. The channel includes a vibration sensor that senses head-to-disc contact v... | 07/20/2010 |
| 7738208 | Data recovery through eliminating adjacent track interference A hard disk drive with a disk that contains a target track and an adjacent track. The drive includes a circuit that determines an error in data read from the target track. Data from the adjacent track is stored in memory. The adjacent track is then erased and the ta... | 06/15/2010 |
| 7636218 | Recording method, unload method, and magnetic disk Embodiments of the present invention prevent occurrence of a write pole erasure in the event of a power failure within a magnetic disk apparatus of a perpendicular magnetic recording system. According to one embodiment of the present invention, a recording current i... | 12/22/2009 |
| 7633698 | Controlling a write inhibit threshold based on vibration A disk drive can include a data storage disk, a head, an acceleration sensor, and a controller. The head is configured to write data on the disk. The acceleration sensor generates an acceleration signal that is indicative of acceleration of the disk drive. The contr... | 12/15/2009 |
| 7630157 | Method of selecting an audio source A system and method for selecting an audio source is disclosed. The system and method can be used to prevent the selection of a hard disk drive as an audio source if the local ambient pressure in which the motor vehicle is operating is less than a predetermined pres... | 12/08/2009 |
| 7630158 | Data loss prevention method of a media storage device and media storage device A media storage device reads and writes data from and to a storage medium using a head and prevents in advance data loss due to thermal relaxation of data recorded on the storage medium. Table stores information which is related to a read error detected by a channel... | 12/08/2009 |
| 7567400 | Method and apparatus for improving the error rate of track information on a magnetic storage device An apparatus and method for improving the error rate of track information on a magnetic storage device is disclosed. One embodiment provides a counter for counting the number of writes to a first track on a magnetic storage device. In addition, a re-read and re-writ... | 07/28/2009 |
| 7558013 | Programming a sensitivity level into an inertial sensor based on a proxy of whether a system is in transit A system comprises a sensor and logic coupled to the sensor. The logic programs a sensitivity level into the sensor to a first sensitivity level if a proxy indicates that the system is in transit and to a second sensitivity level if proxy indicates that the system i... | 07/07/2009 |
| 7551381 | Device and method for reading data from and writing data in storage medium A disk device writes data in or reads data from a disk. The disk device includes a head. The head includes a reading element that reads data from the disk and a writing element that writes data in the disk. The reading element and the writing element are placed apar... | 06/23/2009 |
| 7545596 | System and method for WORM magnetic recording WORM safeguards are provided in a magnetic disk drive in which the disks are pre-magnetized or pre-recorded such that all magnetic domains on each recording surface are completely aligned pointing in the same direction. A special write head which can magnetically wr... | 06/09/2009 |
| 7522366 | Preservation of hard drive data via preliminary detection of adjacent track interference potential Systems and methods for managing adjacent track interference in a hard drive. Adjacent track interference potential is ascertained in at least one track, and data corruption is averted via scrubbing data in at least one track with ascertained adjacent track interfer... | 04/21/2009 |
| 7518816 | Method and apparatus for disc drive data security using fields in servo wedges The present invention includes a method and apparatus to write and read copy protected data on a disc drive storage system by encoding and decoding data to be copy protected using servo wedge data as the encoding element. In one aspect, the drive is marked by a numb... | 04/14/2009 |
| 7515370 | Recorder and cassette containing recording medium A recording apparatus capable of recording data either in a current-used format or a new format on a recording medium accommodated in a current-used tape cassette or a new tape cassette. The recording apparatus comprises a first writing prohibition detection switch ... | 04/07/2009 |
| 7499232 | Media player with acceleration protection An improved media player and a method for operating a portable computing device (e.g., media player) are disclosed. According to one aspect, a portable computing device is able to protect its disk drive when being subjected to undesired levels of acceleration. The p... | 03/03/2009 |
| 7471479 | System for protection against copying on magnetic tape recorders An audio or other programme signal is modified to provide protection against copying on a magnetic tape recorder. The signal from a source (10) is amplified (16) and then subjected to Fourier analysis (11) to determine the signal amplitude in a ... | 12/30/2008 |
| 7463441 | Automatic data update method of data storage system and disk drive using the same A data storage device and method of controlling the same. An automatic data update method of a data storage system, includes: counting a number of times a write mode is executed in tracks adjacent to each track of a storage medium; reading data stored in one of the ... | 12/09/2008 |
| 7444064 | Broadcast receiver, program recording method and program product The broadcast receiver that incorporates an HDD as a recording medium and records programs on the recording medium, when recording a program on the recording medium, determines whether the program content is prohibited from being copied afterward. If it is determine... | 10/28/2008 |
| 7430452 | Apparatus, system, and method for selectivity protecting a motion sensitive component in a computerized device An apparatus, system, and method are disclosed for balancing the read and write requirements of applications running in a computerized system against the requirements to protect a motion sensitive device in the system and requirements to protect data. The apparatus ... | 09/30/2008 |
| 7426087 | Information recording apparatus An information recording apparatus has a write canceling circuit that monitors interface signals fed from a host and that, when the interface signals are recognized to be abnormal, inhibits write operation against a recording medium either for a predetermined period... | 09/16/2008 |
| 7423828 | Off-track write error recovery Method and apparatus for off-track write error recovery. A storage medium is provided with at least first and second tracks, and a write protected status is assigned to the second track to inhibit subsequent writing of data thereto in relation to a position error de... | 09/09/2008 |
| 7414803 | Write protected magnetic storage media and associated methods According to one aspect and example, a method is provided for handling write protected storage devices. The method includes generating a read signal from a portion of a magnetic storage medium and determining if a modulation pattern is present in the read signal, th... | 08/19/2008 |
| 7408732 | Shock resistant, high reliability rotating magnetic storage device and method An information recording method in a rotating storage apparatus comprising a rotating recording medium for recording information, a head for performing at least a write operation onto the rotating recording medium, and an acceleration sensor for detecting a shock. T... | 08/05/2008 |
| 7409142 | Receiving apparatus, receiving method, and supplying medium Digital television broadcast signals are received and AV signals are reproduced in a common apparatus. A digital television signal is received and is separated into a compressed first video signal, a compressed first audio signal, and first copyright protection info... | 08/05/2008 |
| 7406605 | Information recording medium, manufacturing method of its recording medium, information process unit and copyright management system Medium individual information formed an information recording medium is obtained, and a management key used for recording or regeneration on the information recording medium corresponding to the medium individual information is generated, and the predetermined infor... | 07/29/2008 |
| 7403616 | Electronic apparatus, data recording method for the electronic apparatus, and storage medium storing program for executing the data recording method There is provided an electronic apparatus which once makes a user conscious of copyright and the like of digital data, such as audio data and image data, when the user records the digital data or performs the like processing, and then allows the user to use the digi... | 07/22/2008 |
| 7400465 | Recording medium cartridge and recording/reproducing apparatus therefor The present invention relates to a recording medium cartridge memory and recording/reproducing apparatus. A recording medium cartridge consists of a recording medium and a cartridge memory in which a unique ID of the apparatus used for recording/reproducing the cart... | 07/15/2008 |
