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)
05/1987
05/06/1987EP0220991A2 Recording and/or reproducing apparatus, in particular for still pictures
05/06/1987EP0220466A1 Apparatus for recording video signals on rotary recording medium with appropriate angular phase in rapid response to start of rotation
05/05/1987US4663752 Sector mark signal control circuit for disc apparatus
05/05/1987US4663677 Magnetic disk drive having a movable drive motor loading mechanism
04/1987
04/29/1987EP0219688A1 Electromotive drive for a disc memory
04/28/1987US4661940 Optical disc player
04/28/1987US4661870 Automatic micro-floppy disk drive loader
04/28/1987US4661755 Stepping motor control apparatus
04/28/1987US4661735 Arrangement for mounting a plurality of motors
04/23/1987WO1987002497A1 Transducer positioning mechanism
04/22/1987EP0219124A2 Beam controller for magneto-optical disc memory system
04/22/1987CN86202185U Hand cassette tape rewinder
04/21/1987US4660100 Rotary recording medium reproducing apparatus for reproducing pre-recorded signals from a rotary recording medium having track turns recorded with digital signal and track turns recorded with analog signal
04/15/1987EP0218572A1 Apparatus and method for controlling the reproduction of recorded information
04/15/1987EP0218504A1 Method of confiscating a card in a combined reading apparatus, and combined reading apparatus
04/15/1987EP0218214A2 Disk apparatus
04/14/1987US4658317 Flexible magnetic disk write protect device
04/14/1987US4658312 Disk storage drive
04/14/1987US4658311 Magnetic data transfer apparatus having a disk drive mechanism protected against leakage flux
04/14/1987US4658307 Data transfer apparatus for use with a flexible magnetic disk or the like
04/14/1987US4658191 Motor rotation control apparatus
04/14/1987CA1220547A1 Method and apparatus for authenticating memory disk
04/08/1987EP0217600A2 Apparatus for recording a plurality of information signals representative of broadcast programs
04/08/1987EP0217460A1 Apparatus for reading information from a record carrier
04/08/1987EP0217332A2 Light beam scanning read-out apparatus and recording apparatus
04/08/1987EP0217112A2 Data playback system for random selections
04/08/1987CN85107244A Power-supply control device for magnetic disc drive
04/07/1987US4656617 Start-control method and circuit for optical disc play-back system
04/07/1987US4656545 Magnetic disc memory device
04/07/1987US4656543 Device for fixing a regulating plate of a magnetic disc device
04/07/1987US4656533 Floppy disc drive unit
04/01/1987EP0216704A2 Optical writing and reading method and optical writing and reading apparatus
04/01/1987EP0216442A2 Disk drive apparatus
04/01/1987EP0216252A2 Bearing flange for a braced single-sided and braced axial stored external rotor motor
04/01/1987CN86106358A Disk drive apparatus
03/1987
03/31/1987US4654725 Index signal issue mechanism of a magnetic record and reproduction device
03/26/1987WO1987001856A1 Video apparatus operable in a quiescent state
03/24/1987US4653040 Disk size detecting circuit
03/24/1987US4652950 Floppy disc driving apparatus
03/24/1987US4652943 Head loading device for electronic still single-lens reflex camera
03/24/1987US4652799 Apparatus for driving a recording medium at a constant speed relative to a pickup device
03/19/1987DE3531794A1 Process and circuit arrangement for automatically controlling the start/stop behaviour of the drives of mechanically driven storage devices
03/18/1987CN86105310A Apparatus to record and read information on rotary infn. optical disc
03/17/1987US4651242 Magnetic disk apparatus
03/17/1987US4651241 Pulse generator in storage drives
03/17/1987US4651238 Recording medium read/write control system
03/12/1987WO1987000381A3 Method and device for the electronic processing of stored video signals
03/11/1987EP0213603A2 Spindle assembly for a video recorder-playback machine
03/04/1987EP0212698A1 Apparatus for recording and/or reading information on/from a rotating information disc
03/03/1987US4648086 Simplified sound reproducing device capable of reproducing a plurality of recorded items
03/03/1987US4647997 Aerodynamic latch for disk file actuator
03/03/1987US4647993 Rotary head recording system
03/03/1987US4647987 Modified synchronization in apparatus for recording and reproducing single field non-interlaced images
03/03/1987US4647828 Servo system
03/03/1987US4646557 Dynamic force measurement system
02/1987
02/25/1987EP0211099A1 Method for lowering the frictional coefficient of the magnetic head-disk interface in a lubricated magnetic disk system and disk storage system
02/24/1987US4646280 Optical disk record player with fast access time
02/24/1987US4646278 Pick-up positioning apparatus for data playback apparatus
02/24/1987US4646194 PG yoke position detecting apparatus
02/24/1987US4646176 Recording and reproducing apparatus including a cassette loading detecting device
02/19/1987DE3529561A1 Arrangement for replaying a selected audio information from an audio information block of an audio medium
02/19/1987DE3528121A1 Sliding bearing for precision running
02/17/1987US4644428 Adjustable mechanism for releasably coupling floppy disk to drive spindle
02/17/1987US4644426 Floppy disk drive apparatus
02/17/1987US4644419 Floppy disk unit
02/04/1987EP0210630A2 Method of formatting data storage disks
02/03/1987US4641295 Disc playback apparatus
02/03/1987US4641294 Method and apparatus for performing a memory operation on a fixed length block of data on a memory disk
02/03/1987US4641212 Apparatus for loading a magnetic disc and for controlling the driving thereof
02/03/1987US4641209 Disc type information storage and retrieval system
02/03/1987US4641152 Fixturing apparatus for vibration dampened optical disc recording
01/1987
01/29/1987WO1987000672A1 Stopping system for record-player
01/28/1987EP0210006A2 Record information reproducing method with content identifiers
01/28/1987EP0209903A2 Disk drive apparatus
01/27/1987US4639798 Disk drive having two interactive electromechanical control subsystems
01/27/1987US4639660 Switching circuit for a power supply in a signal processing apparatus
01/22/1987DE3524097A1 Method and device for the electronic processing of stored video signals
01/21/1987EP0208931A1 PCM audio signal reproducing apparatus
01/20/1987US4638374 Defect detecting apparatus for a rotary recording medium
01/17/1987CN85101649A Control method and circuit for starting the optical disc playback system
01/15/1987WO1987000381A2 Method and device for the electronic processing of stored video signals
01/14/1987EP0208391A2 Electrically conductive ferrofluid compositions and method of preparing and using same
01/14/1987EP0208212A1 Optical memory with sampled tracking for a pregrooved record carrier
01/13/1987US4636905 Voltage monitoring system for an electric power source of a disc drive
01/13/1987US4636886 Rotary head recording system
01/10/1987EP0078831A4 Improved optical disc unit, and cooperating record/playback apparatus.
01/07/1987CN85106173A Improved record player
01/06/1987US4635245 Frasable optical read/write data storage disc
01/06/1987US4635145 Floppy disk drive with stand-by mode
01/06/1987US4634853 Optical information reading apparatus
12/1986
12/30/1986US4633357 Tubular recording medium having a flexible magnetic recording surface
12/30/1986US4633346 Magnetic head positioning device for a flexible disk
12/30/1986US4633340 Magnetic recording and reproducing apparatus with means for increasing amount of information to be stored in a magnetic memory disk
12/30/1986US4633337 Floppy disk driving with suitable on-delay and off-delay timing
12/30/1986EP0206516A2 Ferrofluid composition, method of making, and apparatus and method using same
12/24/1986CN85205766U Acoustic frequency computer
12/24/1986CN85205468U Servo d.c. record player
12/24/1986CN85204843U D.c. record player with self-induction switch
12/23/1986US4631723 Mass storage disk drive defective media handling
12/23/1986US4631714 Apparatus for furnishing data signals from an optically readable record carrier at the same frequency as the associated subcode signals