Patents
Patents for G11B 19 - Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function (26,229)
06/1993
06/09/1993EP0474677A4 Television program selection
06/09/1993CN1021142C Personal computer with drive identification
06/08/1993US5218598 Disc driving apparatus with magnetic means for preventing axial movement
06/08/1993US5218592 Disc player
06/08/1993US5218585 Phase shifting feedback control in an optical disk drive
06/08/1993US5218504 Disc-drive apparatus having function of preventing destruction of data
06/08/1993US5218491 Disk drive apparatus
06/08/1993US5218456 Disk bandwidth allocations to prioritize disk requests
06/08/1993US5218453 Optical disc access control apparatus
06/08/1993US5218451 Spindle servo control for electronic still camera
06/08/1993US5218450 Apparatus for reproducing information from a recording medium in accordance with a search command
06/08/1993US5218253 Spin motor for a hard disk assembly
06/02/1993EP0544504A2 A disc reproducing apparatus and recording apparatus
06/02/1993EP0544276A2 Writable optical disk recording apparatus
06/01/1993USRE34270 Divided housing for supporting magnetic disks
06/01/1993USRE34268 Brushless direct current motor system
06/01/1993US5216654 Synchronizing signal switching system for synchronizing external storage devices
06/01/1993US5216647 Target track position retrieval device
06/01/1993US5216557 Disk storage device having a brushless dc drive motor
06/01/1993US5216304 Spindle motor with an improved hub
06/01/1993US5216227 Index displaying device for a video disk player
06/01/1993US5215385 Low-profile disk drive motor with deflecting-pad bearings
06/01/1993US5215313 Magnetic fluid sealing device
05/1993
05/26/1993CN1020977C Recording system as well as record carrier and recording appratus for use in system
05/25/1993US5214631 Disc recording/reproducing apparatus having a servo system capable of successively recording and reproducing tracks on a disc irrespective of turbulence of the servo system due to a disturbance
05/25/1993US5214629 Optical disc having a high-speed access capability and reading apparatus therefor
05/25/1993US5214626 Information recording/reproducing apparatus for writing on and reading from a rewritable optical disk have tracks divided into a plurality of sectors
05/25/1993US5214544 Apparatus for generating a track zero signal in a floppy disc driver without an optical track zero sensor
05/25/1993US5214516 Image pickup system with an indication of the audio signal recording state
05/25/1993US5214331 Lead holder for a spindle motor
05/25/1993US5214326 Spindle motor with magnetic shield for magnetic fluid seal
05/25/1993CA1318398C Thin film head read recovery
05/23/1993WO1993010535A1 Disc device
05/23/1993CA2100157A1 Disk drive
05/19/1993EP0542730A2 Optical disc and disc drive apparatus for writing/reading data into/from the disc
05/19/1993EP0542377A2 Method of storing user information items and apparatus for reproducing stored items
05/19/1993EP0541996A2 Checking for proper locations of storage devices in a storage device array
05/19/1993EP0541852A1 Spindle and hub assembly
05/19/1993CN2133899Y Electrocontrolled self-stop apparatus for truntable
05/18/1993US5212798 Floppy disk drive apparatus with variable rotation disk speeds and varible stopping periods
05/18/1993US5212657 Kinetofrictional force testing apparatus
05/18/1993US5212607 Disk drive including unitary deck for aligning and supporting axially retractable spindle assembly
05/18/1993US5212602 Magnetic head having fuse within head case
05/18/1993CA1318022C Disk player
05/13/1993WO1993009500A1 Compact disk data transfer system using cache memory
05/13/1993DE4136996A1 Disc drive system for reading or writing data memory - has pancake type motor construction built-in for direct drive with rotor supported on inner and outer ball bearing assemblies
05/12/1993EP0541213A1 Position detecting apparatus and method
05/12/1993EP0541208A1 Disk player
05/11/1993US5210860 Intelligent disk array controller
05/11/1993US5210735 Optical recording/reproducing system, having function of detecting dirt deposition on optical pickup
05/11/1993US5210733 Information recording and reproducing device employing variable data recording clock rates
05/11/1993US5210725 Tray loading apparatus for disc players
05/11/1993US5210672 Magnetically indelible media type identification system
05/11/1993US5210665 Floppy disk apparatus having an improved disk rotating mechanism
05/11/1993US5210661 Method of skipping unrecorded areas while playing back a record medium on a drive
05/09/1993CA2074978A1 Position detecting apparatus and method
05/09/1993CA2073400A1 Disk player
05/05/1993EP0540355A2 Rotation synchronous control system
05/05/1993EP0540354A2 Spindle sync control system
05/05/1993EP0540114A1 Method and apparatus for reducing track switch latency in a disk drive
05/05/1993EP0539966A2 A magneto-optical disc control system and method
05/04/1993US5208791 System for recovering a CD in a CD player having a magazine containing a plurality of disks
05/04/1993US5208706 Magnetic reproduction apparatus and method
05/04/1993US5208518 DC-DC boost converter for spindle motor control
05/04/1993US5207514 Mounting, in particular for disk spindles
05/02/1993CA2071412A1 Method and apparatus for reducing track switch latency in a disk drive
04/1993
04/29/1993WO1993008562A2 Magneto-resistive head
04/29/1993WO1993000768A3 Video and/or audio data reproduction system and controller therefor
04/28/1993EP0538976A1 Apparatus for sensing operating shock on a disk drive
04/27/1993US5206740 Video disk player capable of providing normal image reproduction of an external video signal as well as a video signal stored on a disk
04/27/1993CA1317029C Method and apparatus for processing information data
04/21/1993EP0537916A2 A circuit for controlling an actuator arm in a disk drive system
04/21/1993EP0537801A2 Data recording and reproducing apparatus for use in an optical card
04/20/1993US5204851 Apparatus for reading and/or inputting information
04/20/1993US5204847 Sensing previously-recorded information while recording or erasing a magnetooptic storage number
04/20/1993US5204793 Removable cartridge disk drive with an integral head loading ramp, air filter and removable cartridge door safety stop
04/20/1993US5204601 Motor control servo system
04/20/1993US5204594 Circuit for providing a signal proportional to the average current flowing through coils of a motor operated in both linear and PWM modes
04/20/1993US5204593 Drive system for information recording/reproducing apparatus
04/20/1993CA1316592C Method and apparatus for substituting a higher quality soundtrack for a lesser quality audio soundtrack during reproduction of the lesser quality audio soundtrack and a corresponding visual picture
04/15/1993WO1993007617A1 Data recording medium, its production, and data recording/reproduction apparatus
04/14/1993EP0536699A2 Disk playback apparatus
04/14/1993EP0536558A1 Apparatus for optically recording and reproducing information
04/14/1993EP0536404A1 Method for reproducing signal in optically recording medium
04/14/1993CN1071018A Method for controling peripheral apparatus, method for controlling floppy disk apparatus, peripheral apparatus, floppy disk apparatus, and data processing system
04/13/1993US5202879 Information recording medium, and information recording and/or reproducing method and apparatus
04/13/1993US5202877 Apparatus for detecting unused sector on record medium
04/13/1993US5202874 Circuit arrangement for identifying the type of an optical record carrier
04/13/1993US5202863 Magneto-optical disk unit compatible with different two types of magneto-optical disks and a magnetic-field generator suitable thereof
04/13/1993US5202799 Logical data tracks extending among a plurality of zones of physical tracks of one or more disk devices
04/13/1993US5202797 Disk drive device having a single motor for rotating a plurality of disks
04/07/1993EP0535920A2 Data processing
04/07/1993EP0535637A2 Disc player
04/07/1993CN1070758A System for reproduction programming of recorded items stored on recording medium
04/06/1993US5200944 Disc playback apparatus for reproducing sequentially recorded digital data
04/06/1993US5200866 Motorized spindle for disk drive
04/01/1993WO1993006600A1 Architecture for low-profile rigid disk drive
04/01/1993WO1993006594A1 Microminiature hard disk drive
04/01/1993WO1993006593A1 An embedded servo system with reduced agc overhead
03/1993
03/31/1993EP0534766A2 Data write device