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) |
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09/16/1987 | EP0237096A1 Record player |
09/16/1987 | EP0236534A2 Data recording floppy disc with a safety switch |
09/15/1987 | US4694446 Simplified sound reproducing device of random selecting type |
09/15/1987 | US4694445 Record disc replacing means for a selective playing type sound reproducing device |
09/15/1987 | US4694442 Disc reader with obliquity correction |
09/15/1987 | US4694365 Recording medium for recording and/or reproducing apparatus |
09/15/1987 | US4694163 Apparatus for scanning sheet-shaped recording medium with a bending roller |
09/15/1987 | CA1226961A1 Sound generation and disk speed control apparatus for use with computer systems |
09/09/1987 | EP0235615A2 Security device with security key for personal and work place computers |
09/09/1987 | EP0235275A1 Video apparatus operable in a quiescent state |
09/08/1987 | US4692915 Recording and reproduction apparatus having improved reliability with respect to externally applied vibration or impact |
09/08/1987 | US4692832 Method for lowering the frictional coefficient of the magnetic head-disk interface in a lubricated magnetic disk storage system |
09/08/1987 | US4692829 Magnetically biased aerodynamically released integral safety latch for rigid disk drive |
09/08/1987 | US4692815 Photographing and recording method and apparatus for electronic still picture cameras |
09/02/1987 | EP0234594A2 System capable of retrieving information from an optical memory |
09/01/1987 | US4691311 Disc reading apparatus with disc shoot journaled in frame |
09/01/1987 | US4691310 Compact disk read only memory recording system with speed control |
09/01/1987 | US4691255 Power saving circuit arrangement for data transfer apparatus with a disklike record medium |
08/27/1987 | WO1987005144A1 Apparatus for the recording and/or play back of information on resp. by a driven recording medium |
08/27/1987 | DE3702783A1 Recording and/or reproducing system |
08/26/1987 | EP0233207A1 Stopping system for record-player. |
08/25/1987 | US4689778 Optical disc recording/reproducing apparatus with recorded track-section detector |
08/25/1987 | US4689705 Counter device for a magnetic recording disk cartridge |
08/25/1987 | US4689698 Disk drive control for inhibiting operation upon battery voltage drop |
08/18/1987 | US4688112 Power-saving data transfer apparatus with a flexible magnetic disk or the like |
08/18/1987 | US4688107 Information recording and regenerating system |
08/18/1987 | US4687596 Polar carrier, polyol, magnetic particles, surfactant |
08/12/1987 | EP0232134A2 Optical disc and disc drive apparatus for writing/reading data into/from the disc |
08/11/1987 | US4686665 Mode switching device in a disc playback device |
08/11/1987 | US4686595 Apparatus for repositioning a transducer in the absence of electrical current to a drive system |
08/11/1987 | US4686593 Overriding loading door for a magnetic recording/reproducing apparatus |
08/11/1987 | US4686592 Disk drive assembly |
08/11/1987 | US4686587 Record and/or playback device with cue signal indication and access |
08/06/1987 | DE3702814A1 Recording and/or replay device |
08/05/1987 | EP0231009A2 Optical recording medium |
08/05/1987 | EP0230963A2 Information processing apparatus |
08/04/1987 | US4685097 Power control system for a semiconductor laser |
08/04/1987 | US4685095 Optical storage and retrieval device |
07/29/1987 | EP0230275A2 Reader/writer apparatus for optical memory card |
07/28/1987 | US4683385 Pulse number detection circuit |
07/21/1987 | US4682312 Disc player with search noise suppression |
07/21/1987 | CA1224565A1 Twin track vertical read-write head structure |
07/15/1987 | EP0228848A2 Disc reproducing apparatus |
07/15/1987 | EP0228738A1 Disc player |
07/14/1987 | US4680746 Recording disc rotary drive control apparatus |
07/14/1987 | US4680744 Disc player having pick-up tilt servo system combined with disc presence detection circuits |
07/08/1987 | CN86108503A Miniature motor |
07/07/1987 | US4679181 Method for detecting an error in loading a recording disc |
07/07/1987 | US4679102 Method and means for parking read/write heads in a disc drive using the back-EMF of the spindle motor to operate a stepper motor |
07/07/1987 | US4679101 Information recording or erasing apparatus |
07/02/1987 | WO1987003996A1 Magnetic recording/regenerating apparatus |
07/01/1987 | EP0227158A1 Device for determining a centring error of an information structure in an optical record, record-scanning apparatus provided with such device and record carrier for use in this apparatus |
07/01/1987 | EP0227061A2 Disk drive apparatus providing increased track density |
06/30/1987 | US4677658 Remote dictating apparatus |
06/30/1987 | US4677510 Data transfer apparatus with a disklike record medium |
06/30/1987 | US4677509 Spindle assembly for magnetic disks |
06/30/1987 | US4676672 Precision spindle |
06/24/1987 | EP0226309A2 Card reading apparatus |
06/24/1987 | CN86108820A Rotary brake rigging and its making method |
06/23/1987 | US4675856 Optical storage and retrieval device |
06/23/1987 | US4675855 Reproducing rate control apparatus for information recording disc |
06/23/1987 | US4675763 Magnetic disk drive with a disk leveling mechanism |
06/23/1987 | US4675749 Disc player system with digital information demodulation operation |
06/16/1987 | US4674080 Disc loading and unloading apparatus for use in a disc player |
06/16/1987 | US4673997 Electrically conductive ferrofluid bearing and seal apparatus and low-viscosity electrically conductive ferrofluid used therein |
06/16/1987 | CA1223067A1 Servo data driven motor speed control |
06/10/1987 | EP0224852A2 Construction for installing a stepping motor of a floppy disk drive unit |
06/10/1987 | EP0224498A1 Record playback counter |
06/09/1987 | US4672597 Clock signal reproducing circuit for a player reproducing information of a disc |
06/09/1987 | US4672595 System for controlling rotary drive of recorded disk player |
06/09/1987 | US4672486 Apparatus for rotating a magnetic disc |
06/09/1987 | US4672474 Synthetic control track signal producing apparatus for video tape machines |
06/04/1987 | DE3542542A1 Disc drive |
06/03/1987 | EP0224465A2 Variety mode selection device and process for automatic changer apparatus |
06/03/1987 | EP0224378A2 Means for parking read/write heads in a disc drive using the back-emf of the spindle motor to operate a stepper motor |
06/03/1987 | EP0224250A2 Optical recording medium and method and apparatus for correcting angular deviation thereof |
06/02/1987 | USRE32431 System for rotating an information storage disc at a variable angular velocity to recover information therefrom at a prescribed constant rate |
06/02/1987 | US4670868 Simplified sound reproducing device having a plurality of external shaft corresponding to the recorded items |
06/02/1987 | US4670867 Simplified sound reproducing device having a plurality of external shaft corresponding to the recorded items |
06/02/1987 | US4670866 Recording medium disk continuous-driving apparatus |
06/02/1987 | US4670799 Erasing apparatus |
05/27/1987 | EP0223676A1 Rotation driving system for at least one magnetic disc, and electrical motor included in this system |
05/27/1987 | EP0223611A2 Method for mapping around defective sectors in a disc drive |
05/27/1987 | EP0223576A2 Light control circuit of an optical disc system |
05/27/1987 | DE3541681A1 Method and device for the electronic recording of texts |
05/27/1987 | CN86107104A Record disc replacing means for a selective playing type sound reproducing device |
05/26/1987 | US4669075 Optical disk control apparatus |
05/26/1987 | US4669072 Control apparatus for optical video disk recorder/player |
05/26/1987 | US4669009 Floppy disc recording and/or reproducing apparatus having a loading mechanism for loading a cartridge which accomodates a floppy disc |
05/26/1987 | US4669007 Magnetic recording/reproducing apparatus |
05/21/1987 | WO1987003132A1 A storage disk drive mechanism |
05/19/1987 | US4667314 Compact disc player for playing a sequence of discs and selecting a sequence of stored programs in each disc to be played |
05/19/1987 | US4667258 Disk drive with multiple head cartridge |
05/19/1987 | US4667137 Single excitation pulse brushless DC motor |
05/13/1987 | EP0221097A1 Elastic support system with adjustable shock absorption for record players. |
05/12/1987 | US4665454 Data transfer apparatus for use with a magnetic disk cartridge |
05/12/1987 | US4665453 Floppy disc recording and/or reproducing apparatus |
05/12/1987 | US4665446 Magnetic recording and reproducing apparatus |
05/12/1987 | US4665445 Floppy disk drive apparatus |
05/12/1987 | US4665443 Signal recording and reproducing apparatus |