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)
10/1985
10/09/1985EP0157387A1 Signal transducing head moving apparatus
10/09/1985EP0157017A1 Arrangement of supports for the magnetic heads of a magnetic disc drive unit
10/08/1985US4546389 Video disc encoding and decoding system providing intra-field track error correction
10/02/1985EP0156065A1 Cleaning diskette for flexible disk drive transducers
10/02/1985EP0155999A2 Temperature compensating mechanism for positioning of a magnetic head of a magnetic disk drive
10/01/1985US4545046 Optical recording and/or reading device with spindle and optical elements supported on parallel bars
10/01/1985US4545003 Pick-up device positioning arrangement in an information disc player
10/01/1985US4544973 Swing-arm arrangement for a magnetic disc storage apparatus
10/01/1985US4544972 Swinging actuators for use in magnetic disc type memory devices
10/01/1985US4544969 Servomechanism for disc player
10/01/1985US4544968 Sector servo seek control
10/01/1985US4544957 Time base correction apparatus
10/01/1985US4544872 Tracking servo control system for an information read-out system
09/1985
09/25/1985EP0155817A2 Method of pre-recording tracking information on magnetic media
09/25/1985EP0155756A2 Recording head slider assembly
09/25/1985EP0155746A1 Arch flexure for winchester sliders
09/25/1985EP0155519A2 Apparatus for recording flexible magnetic disks
09/24/1985CA1194231A1 Optical memory system having an improved short seek capability
09/17/1985US4542429 Apparatus for reducing starting adhesion between a magnetic disc and flying head
09/17/1985US4542425 Apparatus for reading a record carrier
09/17/1985US4542415 Tracking error detecting device for disc-type video signal recorder/reproducer
09/17/1985CA1193718A1 Playback apparatus for producing still images
09/04/1985EP0153793A1 Loading/unloading means for slider devices
09/04/1985EP0153524A1 Diagnostic record
09/03/1985US4539665 Tracking servo control unit for an information reproducing apparatus
09/03/1985US4539664 Control system for optical information signal reproduction device
09/03/1985US4539607 Servo track configuration for magnetic disk apparatus
09/03/1985US4538882 Two-dimensional suspension
08/1985
08/28/1985EP0152572A1 Positioning device for a magnetic disc memory
08/27/1985US4538254 Pickup device
08/27/1985US4538193 Aerodynamically released safety latch for data transducer assembly in rotating rigid disk data storage device
08/27/1985US4538191 Magnetic card reader
08/27/1985US4538099 For an electromechanical position translator
08/21/1985EP0152071A2 Data transfer apparatus with a disklike record medium, and a method of operation therefor
08/21/1985EP0152070A2 Data transfer apparatus with a disklike record medium, and a method of operation therefor
08/20/1985US4536863 Method and apparatus for recovering information from a videodisc
08/20/1985US4536813 Magnetic disc recording and/or reproducing apparatus
08/20/1985US4536809 Adaptive misposition correcting method and apparatus for magnetic disk servo system
08/13/1985US4535374 Whitney-type head loading/unloading apparatus
08/13/1985US4535372 Position tracking servo control systems and methods
08/13/1985CA1191946A1 Self-loading magnetic head air bearing slider
08/07/1985EP0150992A2 Methods of and apparatus for recording digital signals
08/07/1985EP0150306A1 Information storage disk transducer position control
08/06/1985US4532802 Apparatus for analyzing the interface between a recording disk and a read-write head
07/1985
07/31/1985EP0149888A1 Servo control system for a data recording system and a data recording system provided therewith
07/30/1985US4532562 Servo control of seek operation in magnetic disk drive
07/30/1985CA1191255A1 Embedded servo track following system and method for writing servo tracks
07/23/1985US4531099 Amplifier
07/16/1985US4530021 Micromotion release of heads from lubricated magnetic disks
07/16/1985US4530020 Self-timed runout correction pattern
07/16/1985US4530019 Servo pattern
07/16/1985US4530018 Information recording/reproducing apparatus with disk having sections of different angular velocity
07/16/1985US4530013 Special reproducing system for reproducing a rotary recording medium
07/16/1985US4529263 Arrangement for preventing misconnection between optical connectors
07/16/1985CA1190644A1 Galvo position sensor for improved track selection in optical data disk system
07/16/1985CA1190643A1 Absolute reference embedded servo
07/10/1985EP0148077A2 Method of writing information on a recording medium
07/10/1985EP0147993A2 Disk unit
07/10/1985EP0147918A1 Magnetic-disk accessing circuitry
07/09/1985US4528654 Dustproof case for an optical information tape including a clamping lens
07/09/1985US4528653 Record player with automatic music search function
07/09/1985US4528607 Magnetic record/playback head positioning apparatus
07/09/1985CA1190318A1 Compensating apparatus for changes in a record medium
07/04/1985WO1985002933A1 Magnetic record medium and apparatus and method for tracking the same
07/02/1985US4527265 Position memory for laser reproduction unit
07/02/1985US4527263 Eccentricity correction for an optical disk device
07/02/1985US4527211 Device for positioning a scanning head in a drive unit for disk records
06/1985
06/26/1985EP0145962A2 Digitally responsive method and apparatus for positioning a transducer of a storage apparatus
06/26/1985EP0145836A2 Distance measuring interferometer and method of use
06/26/1985EP0145787A1 Apparatus for controlling tracking of recorded disc reproduction device
06/25/1985US4525756 Head shift mechanism
06/25/1985US4525750 Automatic tracking system for multitrack recorders
06/19/1985EP0144719A1 A video signal recording apparatus
06/19/1985EP0035548B1 Data cartridge recorder with head positioning mechanism
06/18/1985US4524400 Magnetic transducer positioning apparatus
06/18/1985US4524398 Velocity control device for magnetic disc apparatus and method therefor
06/18/1985US4524397 Head positioning system for a disc data store
06/18/1985US4523850 System for positioning a body
06/18/1985CA1189187A1 Servo control of seek operation in magnetic disk drive
06/18/1985CA1189186A1 Read-write head thermal compensation system
06/12/1985EP0144068A2 Data transfer apparatus for use with a magnetic disk cartridge
06/11/1985CA1188793A1 Gimbal assembly for flying magnetic transducer heads
06/06/1985WO1985002484A1 A disc type information storage and rerieval system
06/05/1985EP0143443A2 Magnetic disk head apparatus
05/1985
05/28/1985US4520473 Signal pickup device in a rotary recording medium reproducing apparatus
05/23/1985WO1985002284A1 Machine readable markers for cartesian information storage media
05/22/1985EP0142391A2 Read/write head positioner arrangement
05/21/1985US4519062 Signal pickup device
05/21/1985US4519057 Digital audio disc player including apparatus for finding the beginning of a recorded audio signal
05/21/1985US4519056 Optical disk apparatus
05/21/1985US4519007 Servo-track position detection systems
05/21/1985US4518904 Stepper motor control for data disk system
05/21/1985CA1187605A1 Technique for monitoring galvo angle
05/21/1985CA1187604A1 Swing-arm device for an optical scanning unit
05/21/1985CA1187603A1 Apparatus and method for controlling the position of a rotary head
05/15/1985EP0141499A1 Disk drive servo techniques
05/08/1985EP0139722A1 Center supported actuator carriage assembly
05/07/1985US4516231 Optical disc system having momentum compensation
05/07/1985US4516178 Cylinder crossing detection circuit for disc drive or the like
05/07/1985US4516177 Rotating rigid disk data storage device
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