| 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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| 02/19/1991 | US4995026 Apparatus and method for encoding audio and lighting control data on the same optical disc |
| 02/19/1991 | US4994922 Image storage and retrieval apparatus |
| 02/19/1991 | US4994658 A reader/writer |
| 02/13/1991 | EP0412509A2 Bearing structure |
| 02/12/1991 | US4992893 Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus |
| 02/12/1991 | US4992758 Power amplifying apparatus for optical disk apparatus |
| 02/07/1991 | WO1991001605A1 Branching table for interactive video display |
| 02/07/1991 | WO1991001230A2 Spindle motor control circuit |
| 02/06/1991 | EP0411961A2 Optical disk recording/reproducing device |
| 02/06/1991 | EP0411120A1 Laser reproduction apparatus |
| 02/05/1991 | US4991211 Integrated driving system for signal-processing devices |
| 02/05/1991 | US4991129 Dual mode actuator for disk drive useful with a portable computer |
| 02/05/1991 | US4991044 Disk drive assembly with an auto-ejector driven by the assembly motors |
| 02/05/1991 | US4990837 Dynamic braking apparatus for a motor |
| 01/30/1991 | EP0410626A2 Moving-image recording/reproducing apparatus |
| 01/30/1991 | EP0410293A1 Spindle motor |
| 01/29/1991 | US4989195 Disk recording/reproducing system using disk identification signal to retrieve stored control parameters |
| 01/29/1991 | US4989194 Optical information processing method of driving auto-focusing and/or auto-tracking means in accordance with a stored servo signal when irradiation of a record medium with light beam is stopped, and apparatus therefor |
| 01/29/1991 | US4989108 Electro-mechanical latch |
| 01/29/1991 | US4989107 Microfloppy disk drive with centering mechanism |
| 01/23/1991 | EP0409378A2 Digital front end for time measurement and generation of electrical signals |
| 01/22/1991 | US4987514 Method and apparatus for preventing parasitic electrical discharges in magnetic disk drives |
| 01/22/1991 | US4987505 Magnetic head device having photo detector cell |
| 01/22/1991 | CA1279267C Transcription control over plural interconnected modules |
| 01/16/1991 | EP0407398A1 Removable cartridge disc drive with radial arm voice coil actuator |
| 01/15/1991 | US4985885 Optical memory device |
| 01/15/1991 | US4985884 Disk shaped recording reproduction device |
| 01/15/1991 | US4985792 Disk drive spindle motor with externally mounted flux concentrator ring |
| 01/15/1991 | US4984909 Bearing device |
| 01/12/1991 | CA2020688A1 Information record medium playback apparatus |
| 01/11/1991 | WO1991001065A1 Layered protection system for computer's hard disk |
| 01/11/1991 | CA2055606A1 Layered protection system for computer's hard disk |
| 01/10/1991 | DE4019658A1 Vertical axis pin motor for magnetic data disc - has rotor combined with hub supported from axis pin via facing rotary bearings |
| 01/08/1991 | US4984227 Recording data |
| 01/08/1991 | US4984115 Rotary actuator and bearing support therefor |
| 01/08/1991 | US4984103 Method for reading/writing for a floppy disc drive with buffer memory |
| 01/08/1991 | US4984096 Video disk, disk player and method for long play mode constant angular velocity playback |
| 01/03/1991 | DE3921765A1 Stabilising flywheel for spacecraft - is combined with disc for data recording with separate movable write-read head |
| 01/02/1991 | EP0406021A2 Disk recording and reproducing device |
| 01/02/1991 | CN1048281A Information storage media having information stored thereon for playback at different speeds and method of indexing such stored information |
| 01/01/1991 | US4982399 Information processing apparatus |
| 01/01/1991 | US4982397 Apparatus for focusing a light beam onto an information memory medium having a data non-storage area |
| 01/01/1991 | US4982396 Information recording medium and apparatus using reversible phase change |
| 01/01/1991 | US4982394 Optical information recording/reproducing apparatus |
| 01/01/1991 | US4982299 Linear motor locking mechanism in a disc unit |
| 01/01/1991 | US4982291 Electronic still video camera capable of searching desired picture in simple and quick manner |
| 01/01/1991 | US4982074 Method of recording position information of last track recorded with data in directory area |
| 12/27/1990 | EP0404120A2 Synchronizing signal switching system for synchronizing external storage devices |
| 12/25/1990 | US4980878 Method and apparatus for scanning a recording medium for defects |
| 12/25/1990 | US4980836 Battery powered |
| 12/25/1990 | US4980786 Method and apparatus for improved thermal isolation and stability of disk drives |
| 12/25/1990 | US4980587 Spindle motor with precision bearings |
| 12/19/1990 | EP0402538A1 Erasing device for a relatively moving magnetic layer memory |
| 12/18/1990 | US4979158 Bias magnetic field abnormality detecting apparatus which controls recording and erasing of information |
| 12/18/1990 | US4979056 Disk drive system controller architecture |
| 12/18/1990 | US4979055 Disk drive system controller architecture utilizing embedded real-time diagnostic monitor |
| 12/18/1990 | US4979054 Disk drive for storing data in run length limited format and method of providing such format |
| 12/18/1990 | US4979053 Method of controlling recording magnetic field applied by gap of magnetic head in accordance with recording density of disk and magnetic apparatus therefor |
| 12/18/1990 | US4979048 Apparatus for and method of stop control for a spindle motor in a disk player |
| 12/18/1990 | US4978902 Synchronous rotation control system of magnetically recording disk |
| 12/18/1990 | US4978847 Pulse generator and disk sector boundary signal generator with wow and flutter compensation |
| 12/18/1990 | CA1278090C Card confiscating method for a mixed reader and mixed reader |
| 12/13/1990 | WO1990015507A1 Television program selection |
| 12/13/1990 | WO1990015410A1 Information storage media having information stored thereon for playback at different speeds and method of indexing such stored information |
| 12/13/1990 | DE3943332A1 Twin disc player using single drive motor and gearing - controlling position of playback device, movement of disc carriers and operation of shutter |
| 12/12/1990 | EP0402071A2 Signal processing circuit for magnetooptical record/reproducing apparatus |
| 12/11/1990 | US4977539 High-speed searching apparatus for CDP |
| 12/11/1990 | US4977471 Method for servo formatting disc media for a floppy disk drive |
| 12/11/1990 | CA1277766C Optical writing and reading method and optical writing and readingapparatus |
| 12/05/1990 | EP0400810A2 Optical disk reproducing apparatus |
| 12/05/1990 | EP0400679A2 Recording and reproducing system |
| 12/05/1990 | EP0400221A1 Apparatus for consumer entertainment having a control memory and a detacheable second storage divice that is a background memory with respect to the control memory, and subsystem, remote control means and storage device for use in such apparatus |
| 12/04/1990 | CA1277420C Disc reproducing apparatus |
| 11/28/1990 | EP0399853A2 Recording and reproducing device |
| 11/28/1990 | EP0399852A2 Recording/reproducing device |
| 11/28/1990 | EP0398875A1 Image storage and retrieval apparatus |
| 11/27/1990 | US4974111 Method and apparatus for electronically processing and rerecording recorded video signals |
| 11/27/1990 | US4974104 Linear actuator disk file with symmetric housing |
| 11/27/1990 | US4974103 High density disc drive with magnetic clutch for use with a sealed removable cartridge |
| 11/27/1990 | CA1277029C Optical disc player |
| 11/27/1990 | CA1277028C Optical disc and disc drive apparatus for writing/reading data into/from the disc |
| 11/22/1990 | EP0398517A2 Passbook handling apparatus |
| 11/21/1990 | CN1047159A Information recording system, and recording device and record carrier for use in such an information recording system |
| 11/20/1990 | US4972399 Apparatus and method for accessing a disk characteristic data recording area of an optical disk |
| 11/20/1990 | US4972398 Optical disk drive with servo loop for detecting defective disks |
| 11/15/1990 | WO1990013894A1 Recording and/or playback device for contactlessly scannable rotating recording substrates |
| 11/15/1990 | WO1990013864A1 Improved security for machine-writeable data storage systems |
| 11/15/1990 | DE4005658A1 Kompatibles abspielgeraet fuer bildplatten verschiedener systeme Compatible player for picture discs of various systems |
| 11/14/1990 | EP0397238A1 Information recording system, and recording device and record carrier for use in such an information recording system |
| 11/14/1990 | EP0397202A2 Encoder |
| 11/14/1990 | EP0397118A2 Disc control apparatus and operating method thereof |
| 11/13/1990 | US4970621 Demagnetization of thin film magnetic recording transducers utilizing a decreasing AC current |
| 11/13/1990 | US4970610 Magnetic disk drive start procedure for starting reaction torque amplification |
| 11/08/1990 | DE3914587A1 Aufnahme- und/oder wiedergabegeraet fuer beruehrungslos abtastbare rotierende aufzeichnungstraeger Recording and / or wiedergabegeraet for electro-scannable rotating record carrier |
| 11/07/1990 | EP0395820A1 Handling case for a reader of audio and/or video information recorded on a carrier such as a laser audio and/or video disc or any other optical carrier |
| 11/06/1990 | US4969140 Rotary disc loading mechanism |
| 11/06/1990 | US4969138 Multi-disk player system |
| 11/06/1990 | US4969057 Floppy disc drive apparatus for preventing absorption between a head and a floppy disc |
| 11/01/1990 | WO1990013172A1 Control circuit |
| 11/01/1990 | WO1990013167A1 Stabilized disk drive spin motor |