Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 21 - Head arrangements not specific to the method of recording or reproducing
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
11/1992
11/25/1992EP0505363A4 Multiple actuator disk drive
11/24/1992US5166915 Process for track jumping
11/17/1992US5165090 Swing-type actuator
11/17/1992US5165082 Method for writing servo signals on a servo disk in a magnetic disk apparatus
11/17/1992US5164931 Method and apparatus for control of positioning
11/17/1992US5164867 Magnetic disk storage and a method for accessing a track in a magnetic disk storage
11/17/1992US5164863 Method for writing servo patterns to a disc of a hard disc drive
11/11/1992EP0512860A2 Double-sided optical disc player
11/11/1992CN1066141A Floating magnetic head
11/10/1992US5163162 System and method for data recovery in multiple head assembly storage devices
11/10/1992US5163033 Track access control system in rotating disc devices with eccentricity correction
11/10/1992CA1310109C Apparatus for recording an information signal
11/05/1992DE4214332A1 Drive system for moving pick=up of record player - has spindle motor carriage and head carriage mechanically coupled such that speed of head relative to disc is increased
11/04/1992EP0511869A2 Method and apparatus for positioning head on reference track in disk storage unit
11/04/1992EP0511863A2 Magnetic disk drive units
11/03/1992US5161140 Track jump control apparatus
11/03/1992US5161136 Servo error detecting method of an optical disc system
11/03/1992US5161076 Magnetic head slider suspension apparatus and method of fabrication
10/1992
10/30/1992WO1992020066A1 Head suspension assembly
10/30/1992CA2109419A1 Head suspension assembly
10/28/1992EP0510834A2 Method and apparatus for accessing data recorded as linked lists
10/28/1992EP0510031A1 Process and circuit arrangement for adjusting the access arm of a disk operating system
10/27/1992US5159509 Magnetic head carriage device for magnetic disk drive
10/27/1992CA1309497C Track seeking using a track following loop
10/21/1992CN1065542A Process for shortening of access time
10/20/1992US5157560 Data recording and reproducing device designed to reduce power consumption
10/20/1992CA1309176C Method and apparatus for measuring dynamic track misregistration
10/14/1992EP0508565A2 Wear-resistant head for contact reading and writing magnetic media
10/14/1992EP0508520A1 Device for inscribing and/or reading information carrier
10/14/1992EP0508471A2 Flying-type magnetic heads
10/14/1992EP0507907A1 Digital servo control system for use in disk drives
10/13/1992CA1308807C Magnetic disk drive with low profile head-suspension system
10/11/1992CA2060669A1 Wear-resistant head for contact reading and writing magnetic media
10/07/1992EP0507320A2 Estimator
10/06/1992US5153789 Methods and apparatus for optimizing track seeking operations
10/06/1992US5153785 Apparatus for measuring the clearance of recording transducer, and a recorder using the apparatus, and a method of controlling the recorder
10/01/1992WO1992016937A1 Actuator servo compensation method
10/01/1992WO1992016936A1 Synchronous digital detection of position error signal
09/1992
09/30/1992EP0505363A1 Multiple actuator disk drive.
09/29/1992US5151639 System for positioning a transducer
09/29/1992CA1308191C Disk reproduction apparatus and method for high speed accessing of desired information data by checking address data
09/23/1992EP0505273A2 Apparatus and method for controlling spindle motor of compact disc utilizing appliance
09/23/1992EP0504892A2 Gimbal card reader
09/15/1992US5148425 Overshoot minimizing tracking servo apparatus
09/15/1992US5148423 Method of and circuitry for compensating offset voltages in a focusing and/or tracking circuit
09/15/1992US5148418 Disc recording apparatus
09/15/1992US5148415 Magneto-optical disc apparatus having head-disc distance control
09/15/1992US5148341 Read-write device for data processing with magnetic information carriers
09/15/1992US5148340 Bifurcated air bearing actuator assembly for a disk drive system
09/15/1992US5148339 Magnetic disk storage
09/09/1992EP0502646A2 Head carriage assembly
09/09/1992CN1064364A Rotary actuator for disk drive assemblies
09/08/1992US5146450 Method and apparatus for bearing to comb attachment
09/08/1992US5146374 Method and apparatus for determining track position of a head on a recording medium
09/08/1992US5146183 Phase lock loop for sector servo system
09/08/1992US5146122 Voice coil actuator with resiliently mounted shorted turn
09/08/1992US5145259 Bearing system
09/02/1992EP0501661A2 Linear actuator
09/02/1992EP0501477A2 Information processing apparatus
09/01/1992US5144609 Apparatus for tracking an optical disc
09/01/1992US5144605 Optical disk apparatus and method for controlling movement of light spot thereof
09/01/1992US5144504 Method of controlling positioning of magnetic head of disk drive unit and disk drive unit executing same
09/01/1992US5144503 Process for controlling an access position of a recording head which enables recording at each recording position on a recording medium without double recording and a device therefor
08/1992
08/25/1992US5142425 Disk drive in which magnetic head-to-disk capacitive coupling is eliminated
08/25/1992US5142424 Floatable information-reading head support configured to prevent forward pitch
08/25/1992CA1306805C Optical disk drive device
08/25/1992CA1306799C Multiple coils for reduction of stray magnetic fields in disk file actuators
08/20/1992WO1992014250A1 Microstructure array and activation system therefor
08/20/1992WO1992014248A1 Method of reducing access time
08/20/1992WO1992014246A1 Process for reducing access time
08/20/1992WO1992014241A1 Method of reading data off a rotating disk-shaped recording medium
08/20/1992WO1992014240A1 Track control circuit
08/19/1992EP0499323A2 Method for reducing access time
08/19/1992EP0499122A2 Tracking control apparatus
08/18/1992US5140574 Read and/or write device
08/18/1992US5140571 Disk drive apparatus with intermittently operated servo signal processor for low power consumption
08/18/1992US5140570 Circuit and method for searching track on cd
08/18/1992US5140480 Method for transducing with a flying head with foil support
08/18/1992US5140476 Apparatus and method for tracing a track center of a magnetic disc
08/18/1992US5140437 Recording/reproducing compressed data on a rotatable record medium in which at least one intraframe code signal and at least (n-1) interframe code signals are recorded in each track
08/13/1992DE4104017A1 Verfahren zum lesen von daten von einem rotierenden plattenfoermigen aufzeichnungstraeger A method for reading data from a rotating record carrier plattenfoermigen
08/12/1992EP0498643A2 Settling monitor system for a following servo
08/12/1992EP0498547A1 Actuator assembly
08/12/1992EP0498503A1 Method for the reduction of the access time
08/12/1992CN1017840B Disc recording system
08/11/1992US5138605 Low-profile radial access mechanism for disk recording/playback apparatus, with optical head mounted on a carriage
08/11/1992US5138599 Information recording medium having dummy tracks and information recording and reproducing apparatus
08/06/1992DE4102801A1 Spurregelkreis Tracking control loop
08/05/1992EP0497550A1 Actuator position detector, actuator position controller and track search controller
08/05/1992EP0497549A2 Light spot position detector
08/05/1992EP0497548A1 Apparatus for detecting position of light spot
08/05/1992EP0497387A2 Carriage servo unit in a disc player
08/05/1992EP0497211A2 Recording/reproducing system using phase encoding of optical storage medium
08/04/1992US5136564 Pit pattern detecting apparatus and method
08/04/1992US5136560 CAV/CLV composite disk accessing method utilizing different accessing procedures for respective CAV and CLV areas
08/04/1992US5136446 Apparatus for movably supporting and positioning a transducer
08/04/1992US5136445 Air bearing slider design
08/04/1992US5136444 Floating type magnetic head having a magnetic gap for recording tracks at the outer periphery of a magnetic disk
08/04/1992US5136441 Position control device for positioning magnetic head on selected track
08/04/1992US5136439 Sectored servo position demodulator system
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