Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
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| Number | Title | Issue Date |
| 8189284 | Quiet retraction system A quiet retraction method for regulating constant velocity while parking an arm within a disk drive is described. The method comprises the steps of: driving a motor for the arm using a first drive current for a first period; floating the motor; sampling a back elect... | 05/29/2012 |
| 8188696 | Motor drive circuit and a method for driving a motor A motor drive circuit includes an H-bridge circuit, voltage difference detection circuit, calibration circuit, back electromotive voltage detection circuit, control circuit, and calibration value acquisition circuit. The H-bridge circuit is connected to a DC motor. ... | 05/29/2012 |
| 8169735 | Zone servo writing using self servo writing A system including a read module, a clock generator module, and a write module. The read module generates read signals in response to reading servo spirals from a magnetic medium of a hard disk drive. The clock generator module generates a spiral clock based on the ... | 05/01/2012 |
| 8169734 | Method and apparatus for controlling head flying height in a disk drive According to one embodiment, a disk drive includes a measuring module, a flying height controller, a detection module, and a controller. The measuring module is configured to measure the flying height that the head has with respect to the disk. The flying height con... | 05/01/2012 |
| 8169733 | Magnetic disk device A magnetic disk device includes a disk that includes a plurality of tracks and magnetically stores therein data; a magnetic head that reads and writes data on the tracks; a data writing unit that classifies sectors along one track into a plurality of sector groups a... | 05/01/2012 |
| 8169732 | Reducing written-in errors in servo patterns A method for writing servo onto a disk of a hard disk drive. The method includes writing a plurality of spiral servo signals with a head. The spiral servo signals are used to generate position error signals and write a plurality of servo patterns. A write current of... | 05/01/2012 |
| 8164847 | Fall detection device, magnetic disk device, and portable electronic apparatus By detecting that a differentiation value of the absolute value of acceleration is lower than a negative threshold value DAth1 in a negative direction from a first stage (S1: Stationary state) where the differentiation value of the absolute value of ac... | 04/24/2012 |
| 8159771 | Controlling a heat resistive element with a pulse modulated signal The disclosure is related to pulse width modulating a power signal to a heat resistive element of a transducer. The power signal may be a power output signal of preamplifier. The power signal may be provided to a heat resistive element in a transducer that is operab... | 04/17/2012 |
| 8159772 | Foldable portable electronic device and system and method for protecting hard disk A foldable portable electronic device, a system and a method for protecting a built-in hard disk thereof are disclosed. The foldable portable electronic device includes a display and a main body. The system includes a trigger, a lid switch, and a logic judgment modu... | 04/17/2012 |
| 8159773 | Method and apparatus for forming servo patterns on a magnetic-recording disk A method for forming servo patterns on a magnetic-recording disk. The method includes moving a magnetic-recording head in an opposite direction to a pattern development direction, when there is a faulty servo pattern. The method also includes positioning a write ele... | 04/17/2012 |
| 8154817 | Compensation for different transducer translation path geometries Method and apparatus for compensating for differences in translation path geometries of transducers used to access a data storage medium. A compensation profile is generated in relation to radial error between a first translation path geometry of a first transducer ... | 04/10/2012 |
| 8154819 | Method of controlling flying height of magnetic head and disk drive using the method The flying heights of magnetic heads of a disk drive are set using an FOD (flying on demand) method in a bank mode. A first signal for adjusting the flying height of a magnetic head is issued to each magnetic head and the value of the first signal is scaled by scale... | 04/10/2012 |
| 8154818 | Systems and methods for adaptive CBD estimation in a storage device Various embodiments of the present invention provide systems and methods for adaptive channel bit density estimation. For example, various embodiments of the present invention provide methods for adaptively estimating channel bit density. Such methods include provid... | 04/10/2012 |
| 8154820 | Harmonic sensor A system comprising: a read/write head configured to generate signals in response to the read/write head being at a particular fly height over a storage medium during a read operation; a weighting function module configured to i) determine time domain samples in res... | 04/10/2012 |
| 8149533 | Load/unload control method and apparatus for a magnetic disk drive According to one embodiment, an estimation method comprises measuring and creating. The measuring is configured to measure a head velocity and a terminal voltage of a coil of a voice coil motor at least two times before unload in a control system eliminating an infl... | 04/03/2012 |
| 8144419 | Disk drive detecting head touchdown from microactuator signal A disk drive is disclosed comprising a head actuated over a disk surface by a microactuator, and a fly height actuator operable to adjust a fly height of the head. A servo control voltage is applied to the microactuator, and the fly height actuator is adjusted to de... | 03/27/2012 |
| 8144420 | VCM PWM control architecture for power saving in hard disk drives The power required by a voice coil motor (VCM) to maintain the head in the data region of a disk drive during an idle mode is further reduced. The current supplied to the VCM is switched on and off. This takes advantage of the inherent capacitance and inductance in ... | 03/27/2012 |
| 8144418 | Test device for magnetic storage device, magnetic storage device, and method of manufacturing magnetic storage device According to one embodiment, a test device for a storage device includes: a module configured to acquire from the storage device a value corresponding to a signal level read from a magnetic disk through a magnetic head of the storage device, at a first timing at whi... | 03/27/2012 |
| 8144417 | Dynamic system control method Techniques are provided herein for reducing vibrations in various modes of a dynamic system. One such technique comprises incorporating vibration limiting and sensitivity constraints into a partial fraction expansion equation model of the system so as to reduce vibr... | 03/27/2012 |
| 8139309 | Negative biasing a slider with respect to a disk to reduce slider wear and provide burnish rate control In a method for negatively biasing a slider with respect to a disk to reduce slider wear and provide burnish rate control a negative bias voltage is generated between the slider and the disk surface respectively, the negative bias voltage causing slider/disk contact... | 03/20/2012 |
| 8139308 | Hard disk drive, method of controlling flying height of magnetic head thereof, and recording medium containing computer program thereon A method of controlling a flying height of a magnetic head of a hard disk drive includes calculating a corrected flying on demand (FOD) voltage to correct a difference between a measured flying height measured by applying a burn-in FOD voltage corresponding to a tar... | 03/20/2012 |
| 8139306 | Electrical current as probe for modulation at head-disk interface A system and method for measuring the modulation between a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A magnetic read/write head is positioned above a magnetic storage medium at a given flying height. The magnetic read/write head read... | 03/20/2012 |
| 8139307 | Hard disk drive apparatus, method of controlling flying height of magnetic head thereof, and recording medium to contain computer program therefor A method of controlling a flying height of a magnetic head of a hard disk drive includes determining whether a difference between a measured flying height of the magnetic head measured by applying a burn-in FOD (flying on demand) voltage corresponding to a target fl... | 03/20/2012 |
| 8139310 | Fly height sensor control circuit A disk drive is disclosed comprising a disk, a head for writing data to the disk, a first touchdown sensor, a second touchdown sensor, and control circuitry comprising a first current source coupled to the first touchdown sensor and a second current source coupled t... | 03/20/2012 |
| 8134318 | System and method of current shaping control for retract A system for implementing current shaping for retract of a voice coil motor (VCM) includes drive circuitry coupled to drive the VCM according to a logic state of the system. Current shaping circuitry is configured to temporarily decrease the bandwidth of a VCM trans... | 03/13/2012 |
| 8130463 | Data recording apparatus and data recording method A data recording apparatus of the present invention includes a head that records data signals by magnetizing a magnetic tape 10 and a recording control portion that controls the recording operation by causing recording current to flow to the head. The recordi... | 03/06/2012 |
| 8125728 | Disk drive, head-slider and method for controlling clearance of a read element and a write element in the disk drive A disk drive. The disk drive includes a disk, a head-slider, a moving mechanism, and a controller. The head-slider includes a read/write element, a first heater element, a contact pad, and a second heater element. The read/write element includes a read element confi... | 02/28/2012 |
| 8125727 | Disk drive and method for adjusting common-mode voltage of an element on a head-slider A disk drive. The disk drive includes a disk configured to store data, a motor configured to rotate the disk, a head-slider and a controller. The head-slider includes a slider configured to fly in proximity to a recording surface of the disk, and an element on the s... | 02/28/2012 |
| 8107186 | Determination of timing based servo pattern type In a magnetic tape drive having a servo read system with at least one read head, the system configured to read servo pattern information as a magnetic tape is moved longitudinally with respect to the at least one read head, the servo pattern comprising a timing-base... | 01/31/2012 |
| 8107185 | Magnetic disk device including a sensor in a case A magnetic disk device includes a magnetic head assembly, which includes magnetic heads, support plates, and a flexible wiring substrate that are integrally formed. The magnetic heads include heating elements for making head element parts protrude toward magnetic di... | 01/31/2012 |
| 8102616 | Magnetic recording medium, method of fabricating the same, and magnetic recording apparatus According to one embodiment, there is provided a magnetic recording medium having a data region in which a plurality of recording tracks, each including magnetic dots arrayed in a down-track direction with a pitch p, are formed in a cross-track direction, and a serv... | 01/24/2012 |
| 8098451 | Systems and methods for variable fly height measurement Various embodiments of the present invention provide systems and methods for determining fly height. For example, a system for fly height determination is disclosed that includes a head assembly disposed in relation to a storage medium, a write channel, and a read c... | 01/17/2012 |
| 8098452 | Flying height measurement Some of the embodiments of the present disclosure provide a disk drive system comprising a disk drive system comprising a disk having a track upon a surface of the disk, the track including a first data-storing sector and a second data storing sector, and a servo se... | 01/17/2012 |
| 8098450 | Fly-height management in a hard disk drive (HDD) A hard disk drive (HDD) including a first resistive temperature detector (RTD) configured to detect a temperature generated by proximity of a slider and a media. The first RTD is proximate an air bearing surface (ABS) of the slider. The HDD also includes a second RT... | 01/17/2012 |
| 8094403 | Correcting errors in position of an HDD write-head A hard-disk drive (HDD) with a current adjustment component is provided. The current adjustment component changes an amount of current to a magnetic-recording head of the HDD to cause a change in the strength of a magnetic write field produced by the magnetic-record... | 01/10/2012 |
| 8094404 | Propagation self servo write system and method for storage devices employing sector-servo scheme A self-servo writing circuit including a controller. The controller is in communication with a read/write head having a read element and a write element, in which the read element is radially offset from the write element by a first predetermined distance. The contr... | 01/10/2012 |
| 8089718 | Method and apparatus for increasing storage capacity of a hard disk drive A method and apparatus for improving the capacity of a hard disk drive is provided. In one embodiment, a portion of timing information is written to a first disk prior to coupling the first disk with a hard disk drive. The first disk is then coupled with the hard di... | 01/03/2012 |
| 8089719 | Finding touchdown frequency for a head in a disk drive A disk drive comprising a head actuated over a disk, and a touchdown sensor for generating a sensor signal. The sensor signal is filtered using at least three bandpass filters to generate at least three filtered signals. The fly height of the head is decreased until... | 01/03/2012 |
| 8085490 | Slider fly-height control in a hard disk drive In fly-height control system, a slider comprises a spin torque oscillator that is configured for generating an RF carrier signal which is out-of-band of a frequency band of read data, write data, and control signals in a hard disk drive. ... | 12/27/2011 |
| 8085489 | Method for writing servo patterns and disk drive including a controller for writing servo patterns according to the method A method for writing servo patterns onto a disk of a disk drive. The method includes providing a plurality of different drive currents for an actuator while pushing the actuator into a crash stop defining a swing range of the actuator. The method also includes perfo... | 12/27/2011 |
