Patents
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
08/1992
08/04/1992US5136438 Magnetic disk device having an auto-loading mechanism and a dust collecting mechanism
08/04/1992US5136436 Apparatus for recording a digital information signal and utilizing the digital sum value thereof to record an auxiliary digital signal, and apparatus for reproducing such recorded signals
08/04/1992CA1306054C Disk file actuator with combined carriage rail and isolator mount for drive magnet
07/1992
07/28/1992US5134608 Disk drive crash stop
07/28/1992US5134601 Optical disk sector servo patterns
07/28/1992US5134599 Equipment for playing back data
07/28/1992US5134531 Magnetic head having a slider with a particular surface arrangement
07/28/1992US5134500 Video disk player with disk code demodulation using reproduced sync signal
07/28/1992US5134326 Voice coil type actuator
07/28/1992US5134325 Carriage driving apparatus
07/28/1992CA1305792C Optical disk drive device and information storage device
07/23/1992WO1992013345A1 Laminated load beam
07/23/1992CA2097596A1 Laminated load beam
07/22/1992EP0495530A2 Method for recovering information from a selected track on a record disc
07/22/1992EP0495471A2 Magnetic disk and magnetic disk device
07/22/1992EP0494869A1 Disk drive system using multiple embedded quadrature servo fields.
07/22/1992EP0248536B1 Methods of and apparatus for seeking a target address on a record medium
07/22/1992CN1017571B Device for scanning record carrier and control circuit for use in such device
07/21/1992US5132946 Player apparatus for playing information on an information recording medium and having search function
07/21/1992US5132857 Carrier and method of attachment for disk file head/arm assemblies
07/21/1992US5132854 High speed seek sector servo magnetic disk drive unit
07/15/1992EP0484433A4 Architecture for 2-1/2 inch diameter single disk drive
07/14/1992US5130973 Disk player locking mechanism whose actuator is energized only during unlocking operation
07/14/1992US5130972 Optical recording and reproducing apparatus
07/14/1992US5130967 On/off-track detecting apparatus for compatible disk player
07/14/1992US5130964 Track seeking control apparatus for use in data recording/reproduction systems having data tracks thereon
07/14/1992US5130962 Tracking control arrangement for information signal reproducing apparatus
07/14/1992US5130895 Apparatus having rotary member
07/14/1992US5130874 Disk file actuator with heat dissipation and simplified component mounting
07/14/1992US5130873 Head positioning apparatus for disc unit
07/14/1992US5130867 Magnetic disk unit utilizing a predetermined range for the frictional coefficient between the magnetic head and the recording medium
07/14/1992US5130866 Method and circuitry for in-situ measurement of transducer/recording medium clearance and transducer magnetic instability
07/14/1992CA1305254C Fine access method of an optical disk drive by means of multi-track jumpand a circuit therefor
07/14/1992CA1305251C Disk drive architecture
07/09/1992WO1992011636A1 Device for controlling positioning of head of disc drive and method of controlling the same
07/09/1992WO1992011630A1 Rigid disk drive with dynamic head loading apparatus
07/09/1992WO1992011629A1 Rotary inertial latch for disk drive actuator
07/09/1992WO1992011628A1 Miniature hard disk drive for portable computer
07/08/1992EP0494033A1 Rotary actuator for disk drive assemblies
07/08/1992EP0493885A2 Slider units for information recording devices and methods of making them
07/07/1992US5128822 Configuration for negative pressure air bearing sliders
07/07/1992US5128821 Flying head slider and magnetic disk unit employing same
07/07/1992US5128820 Static media/spinning head storage device
07/07/1992US5128812 Data transducer positioning system for rotating disk data storage apparatus
07/02/1992DE4141651A1 Tracking data securing for variable speed magnetic tape - includes deduction of deviation data function from comparison of instantaneous with normal speed track following data
07/01/1992EP0493035A1 Servo control method for magnetic disk apparatus
07/01/1992EP0492775A2 Method and Apparatus for positioning head on target cylinder of disk
07/01/1992EP0492774A2 Method and system for correcting offset of head position signal
06/1992
06/30/1992US5126905 Head positioning apparatus
06/30/1992US5126904 Magnetic head supporting structure with thick and thin portions for an information recording apparatus
06/30/1992US5126901 Thin film magnetic head having a narrow upper surface
06/30/1992US5126897 Magnetic recording/reproducing apparatus capable of reducing a setting time in a head positioning control mode
06/30/1992US5126896 Recording or reproducing apparatus having a head positioning, motor power control circuit
06/30/1992US5126895 Shockproof data transducer position control system for rotating disk data storage apparatus
06/30/1992CA1304500C Optical-disk driving apparatus
06/24/1992EP0491350A2 Apparatus and method for transducer crosstalk cancellation in a disk drive system
06/24/1992EP0491264A1 Magnetic disc
06/23/1992US5124974 Mechanism for adjusting the position of pickup in a disc player
06/23/1992US5124972 Mechanism for precise linear movement, and apparatus using such a mechanism for scanning a disc
06/23/1992US5124867 Actuator returning and holding device for a disk unit
06/23/1992US5124864 Magnetic head supporting device including a flexible member of polymeric resinous material
06/19/1992CA2054072A1 Apparatus and method for transducer crosstalk cancellation in a disk drive system
06/17/1992EP0490876A2 Method of and apparatus for positioning transducers by digital conversion of analog signals
06/17/1992EP0119201B1 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus
06/17/1992CN1062067A Circuit for inserting and separating frequency folding information and method for generating thereof
06/16/1992US5123002 Disc player servo device
06/16/1992US5122703 Integrally molded armature for swing-type actuator
06/16/1992US5122702 Rotary voice coil motor with a flat coil
06/16/1992CA1303741C Method of accessing track in still state of recording medium and apparatus therefor
06/09/1992US5121379 Dual side disc player having separate centering hubs for each side of the disc
06/09/1992US5121375 Information-recorded disk carrying tracking pilot signal and playing apparatus therefor
06/09/1992US5121371 Optical servo system for magnetic disk
06/09/1992US5121016 Linear motor
06/03/1992EP0488539A2 Method of manufacturing flying magnetic head
06/03/1992EP0487914A2 Stiffened load beam for a magnetic disk drive
06/02/1992US5119254 Data transducer position control system for rotating disk data storage equipment
06/02/1992US5119253 Rotary actuator for disk drive
06/02/1992US5119250 Method and apparatus for performing a seek
06/02/1992US5119248 Method of recording servo signals
05/1992
05/29/1992WO1992009077A1 Multiple actuator disk drive
05/27/1992EP0487296A2 High density disk apparatus
05/27/1992EP0487003A2 Slope detection method, and information detection/writing apparatus using the method
05/27/1992CN1061485A System and method for data recovery in multiple head assembly storage devices
05/26/1992US5117413 Coil drive for pivotable mounted optical scanner
05/26/1992US5117408 Correlation of sectored servo position information
05/26/1992US5117318 Rotational positioner latch for a magnetic disc storage
05/26/1992US5117315 System and method for starting rotation of a disc in a disc storage unit
05/26/1992CA1301922C Optical disk drive apparatus having counter disable at seek start-up
05/20/1992EP0486218A1 Ball bearing assembly
05/20/1992EP0485994A2 Optical disc access control apparatus
05/20/1992EP0485795A2 System and method for data recovery in multiple head assembly storage devices
05/20/1992EP0485704A2 Disk drive servosystem using gray code
05/19/1992US5115363 Head/gimbal assembly having low stiffness cross band flexure
05/13/1992EP0485234A2 Information recording and reproducing device
05/13/1992EP0484907A2 Magnetic head positioning scheme using a capacitive transducer
05/13/1992EP0484774A2 Very high-density diskette format method and computer-implemented process
05/13/1992EP0484658A1 Compact disk drive
05/13/1992EP0484433A1 Architecture for 2-1/2 inch diameter single disk drive
05/13/1992EP0332689B1 Least squares method and apparatus for determining track eccentricity of a disk
05/10/1992WO1992009076A1 Improved magnetic head suspension