Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7916421 | Methods and structure for recovery of write fault errors in a dynamically mapped mass storage device Methods and structures for recovering from an off-track position error in a dynamically mapped storage device. In a dynamically mapped storage device data is dynamically mapped to a physical location on the recordable media. Thus, when a write fault occurs, such as ... | 03/29/2011 |
| 7755863 | Adjacent track readers Aspects include readers for magnetic storage media. Each reader is operable to read multiple tracks from the storage media simultaneously by using a plurality of active regions, each active region for reading a different track. The active regions may be disposed in ... | 07/13/2010 |
| 7724465 | Tape heads for use with multiple tape formats A magnetic head according to one embodiment includes an array of elements, the elements being selected from a group consisting of data readers, data writers, and combinations thereof; wherein a first subset of the elements is operable for reading or writing data in ... | 05/25/2010 |
| 7724464 | Recording disk and disk drive Embodiments of the present invention provide a recording disk capable of curtailing the amount of servo data to be stored thereon, and a disk drive. According to one embodiment, servo data area sets each of a first servo data area and plural second servo data areas ... | 05/25/2010 |
| 7649708 | Differential timing based servo pattern for magnetic-based storage media A magnetic storage media includes a magnetic first-pole polarity initialized servo track segment and a magnetic second-pole polarity differential timing based servo pattern recorded on the magnetic first-pole polarity initialized servo track segment. The magnetic se... | 01/19/2010 |
| 7649709 | Differential timing based servo pattern for magnetic-based storage media A magnetic storage media includes a magnetic first-pole polarity initialized servo track segment and a magnetic second-pole polarity differential timing based servo pattern recorded on the magnetic first-pole polarity initialized servo track segment. The magnetic se... | 01/19/2010 |
| 7602576 | Data reading method and storage device A disk drive correctly recognizes newly written data when a plurality of readable data exist on the same sector of the same track, by comparing AGC values of each of the readable data, comparing error rates generated by Viterbi decoding, or both. An offset value det... | 10/13/2009 |
| 7486470 | Hard disk drive vibration cancellation using adaptive filter A method of reducing the effect of vibrations associated with seek operations is disclosed. A feedforward filter is adjusted. A cancellation signal is then generated utilizing an adjusted feedforward filter, wherein the cancellation signal models a resonance of a vi... | 02/03/2009 |
| 7440216 | Rotary piezoelectric microactuator with an optimum suspension arrangement The invention relates to a microactuator comprising a movable structure having a symmetric axis about which the movable structure are divided into two parts which can produce the same movement but in opposite directions; two active arms built with piezoelectric mate... | 10/21/2008 |
| 7440221 | Calibration of reader/writer offset in hard disk drive using shingled recording Embodiments of the invention provide a disk drive that is capable of determining the offset of a magnetic head position through simple and easy processing in a case where the shingle write method is adopted, and that is capable of increasing the accuracy. In one emb... | 10/21/2008 |
| 7430091 | Method and apparatus for improving the performance of a disk drive An implementation of a disk drive with improved efficiency where a read head supported by a first positioning component is provided and a write head supported by a second positioning component is also provided. By positioning the write head behind the read head at a... | 09/30/2008 |
| 7428120 | System and method for deconvolution of multiple data tracks A system and method for reading a magnetic medium having a data band thereon, the data band comprising a plurality of written data tracks and in some embodiments at least one alignment band. The system in one embodiment includes a plurality of adjacent readers for s... | 09/23/2008 |
| 7420763 | Disk drive control circuit and method A servo control circuit provides seamless transition between seek and track modes while enabling both rapid seek mode operation and accurate tracking. The control circuit includes an analog-to-digital converter having a non-linear characteristic. The non-linear char... | 09/02/2008 |
| 7385781 | Multi-arm disk drive system having interleaved read/write operations and method of controlling same A hard disk drive system that includes one or more rotating data storage platters, a drive controller and multiple actuator assemblies and corresponding respective read/write heads. The actuator assemblies are separately movable for performing separate data seeks. T... | 06/10/2008 |
| 7362536 | Disk drive that compensates for phase incoherence between radially adjacent servo tracks and methods thereof Methods of compensating for radial incoherence in servo information that is read from adjacent servo tracks that have a phase offset relative to one another on a data storage disk of a disk drive are provided. While a transducer is seeking to a target track, the tra... | 04/22/2008 |
| 7317596 | Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio A continuous-media or patterned-media disk drive with a low ratio of linear bit density in bits per inch (BPI) in the along-the-track direction to track density in tracks per inch (TPI) in the cross-track direction has a magnetoresistive read head with high cross-tr... | 01/08/2008 |
| 7312945 | Techniques for adjusting for actuator non-linearities in a data storage system The invention provides techniques for adjusting for actuator non-linearities in a data storage system. The invention is particularly useful for piezoelectric actuators, such as actuators that implement a bimorph piezoelectric crystal structure or a laminate piezoele... | 12/25/2007 |
| 7310291 | Method and apparatus for tracking error detection in optical disk driver A method and apparatus for tracking error detection in an optical disk reproduction system. The tracking error detecting apparatus generates a tracking error signal as a difference signal of optical detection signals generated by more than two optical detectors posi... | 12/18/2007 |
| 7298574 | Servo writing a disk drive using correction values that attenuate phase error propagation Servo writing a disk of a disk drive is disclosed. A phase locked loop (PLL) is synchronized to first sectors previously written on a first track, and second sectors are written to a second track using the PLL, wherein a plurality of phase errors corresponding to th... | 11/20/2007 |
| 7292402 | Systems and methods for multipass servowriting with a null burst pattern Embodiments of the present invention enables the trimming and writing of servo bursts in a null burst servo pattern as multiple portions in multiple passes while still demodulating each of the servo bursts as a single burst to obtain PES. Alternatively, the servo bu... | 11/06/2007 |
| 7281175 | Readout controlling apparatus, reproducing apparatus, recording apparatus, and readout controlling method A readout controlling apparatus for controlling reading conditions at the time of reading data coded in units of predetermined code blocks from a recording medium capable of performing error correction at a high reliability even when the playback conditions are poor... | 10/09/2007 |
| 7279505 | Radiation-curable prepolymers The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or... | 10/09/2007 |
| 7256962 | Magnetic tape drive with AC erase element upstream from plural head elements A magnetic head including a plurality of head element units provided along a width direction with respect to a magnetic tape. Each head element unit is provided with at least one recording element for recording a data signal on the magnetic tape and at least one rep... | 08/14/2007 |
| 7253986 | System and method for deconvolution of multiple data tracks A system and method for reading a magnetic medium having a data band thereon, the data band comprising a plurality of simultaneously written data tracks and at least one alignment band. The system in one embodiment includes a plurality of adjacent readers for simult... | 08/07/2007 |
| 7248427 | Method and apparatus for reducing velocity errors when writing spiral servo information onto a disk surface The present invention is directed to a method and apparatus for reducing velocity errors when writing spiral servo information onto a disk surface of a disk drive. In one embodiment, a servo track writer is provided for moving a write head at a controlled velocity. ... | 07/24/2007 |
| 7245452 | Disk drive with altitude detection via analysis of non-repeatable runout components A controller for a disk drive measures track misregistration, extracts non-repeatable runout from measured track misregistration, determines one or more components of non-repeatable runout at various radial locations of a disk, and compares the determined components... | 07/17/2007 |
| 7239472 | Method and apparatus for writing data in a disk drive According to one embodiment, there is to provide a data write method which is applied to a disk drive, for recording data on a disk medium by a head mounted on a rotary type actuator. The method carries out a track pitch conversion processing so that a track pitch o... | 07/03/2007 |
| 7212372 | Magnetic tape and magnetic tape cartridge There is provided a magnetic tape, to be used at a running speed of at least 4,000 mm/sec., wherein servo signals for controlling tracking are recorded on the magnetic layer or the backcoat layer, and wherein the difference between the recording track width and the ... | 05/01/2007 |
| 7209314 | Disk drive with phase-quadrature servo pattern and demodulated position error signal insensitive to timing and phase-misalignment errors A magnetic recording disk drive uses a phase-quadrature position-error-signal (PES) pattern and a servo signal demodulator that is insensitive to clock errors and phase-misalignment errors. The disk has angularly-spaced servo sectors, with each servo sector having r... | 04/24/2007 |
| 7206162 | Seek trajectory generation using adaptive filtering Embodiments of the present invention provide a method and a system for generating optimal feedforward signal for the seek control to suppress the RTV (Random Transient Vibrations) and the seek acoustic noise. One aspect is directed to a method of providing a revised... | 04/17/2007 |
| 7196864 | Disk drive having a servo control system optimized for faster determination of repeatable runout correction values and related method A disk drive is disclosed having a servo control system optimized for faster determination of repeatable runout (RRO) correction values. Each circumferential track on a magnetic disk exhibits total runout having an RRO component and a nonrepeatable runout (NRO) comp... | 03/27/2007 |
| 7196859 | Processing techniques for time-based servo patterns Techniques are described for accurately processing playback signals of time-based servo patterns recorded on a data storage medium. In particular, techniques are described for determining values for signal peaks within a playback signal of a time-based servo pattern... | 03/27/2007 |
| 7180696 | Methods for selective multi-pass servowriting and self-servowriting The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 02/20/2007 |
| 7180695 | Systems for self-servowriting with multiple passes per servowriting step The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where servo bursts are used to define a position on the media, trimming a first burst and writing a second burst on separate re... | 02/20/2007 |
| 7173788 | Medium and apparatus for magnetic recording and method for measuring the offset amount A magnetic recording medium includes a discrete area and an offset amount measurement area. The discrete area has a plurality of magnetic tracks where data can be recorded and that has a non-magnetic track where the data cannot be recorded located between the plural... | 02/06/2007 |
| 7167333 | Method and apparatus for writing and reading servo information written in a spiral fashion A method and apparatus for writing spiral servo information onto one or more disk surfaces at a variable velocity using a servo track writer (STW) is provided. In one embodiment, a variable velocity profile is chosen so that spiral crossing angles across the disk su... | 01/23/2007 |
| 7167845 | Process for performing fuzzy procedures in processing devices, corresponding processing device and computer program product A method and related system for performing fuzzy procedures in processing devices. The method provides for calculating a degree of activation of a fuzzy proposition represented by input values having a fuzzy set associated to a triangular or trapezoidal membership f... | 01/23/2007 |
| 7154699 | High bandwidth large stroke spin-stand A high bandwidth, large stroke spin-stand for testing components of a disc drive includes a coarse positioning stage and a rotary micropositioning stage. The spin-stand is capable of positioning a transducer head relative to the data storage disc based on one or bot... | 12/26/2006 |
| 7142381 | Servo writing devices for creating servo patterns with inherent track ID The invention is directed to patterns of amplitude-based servo windows that eliminate the need for conventional track identification marks, and various servo writing devices and head configurations that facilitate creation of such servo patterns. The patterns of ser... | 11/28/2006 |
| 7139144 | Method and apparatus for writing spiral servo information by modifying existing servo track writing equipment A method and apparatus for writing spiral servo information is provided. In one embodiment, a servo track writer having a digital signal processor is provided. The servo track writer also includes a clock head, which reads a clock track from a disk surface to genera... | 11/21/2006 |
