| 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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| 02/20/1985 | EP0133233A1 Data transfer apparatus for use with a flexible magnetic disk or the like |
| 02/20/1985 | EP0133232A1 Data transfer apparatus for use with a flexible magnetic disk or the like |
| 02/19/1985 | US4500983 Rotary recording medium reproducing apparatus |
| 02/19/1985 | US4500982 Servo circuit for a motor for reproducing a PCM audio disk |
| 02/19/1985 | CA1182913A1 Disc player |
| 02/12/1985 | US4499573 Disc rotating apparatus |
| 02/12/1985 | US4499571 Optical disk system with laser safety arrangement |
| 02/12/1985 | US4499514 Disc drive apparatus |
| 02/12/1985 | US4499407 Brushless DC motor assembly with improved stator pole |
| 02/12/1985 | CA1182561A1 Digital audio disc player |
| 02/05/1985 | US4498034 Motor speed control circuit |
| 01/31/1985 | WO1985000458A1 Disk drive positioning system providing passive head crash protection |
| 01/29/1985 | US4497049 System for detecting the operative face of a disc carrying data on one face only |
| 01/29/1985 | US4497002 Method of and apparatus for driving a disk storage |
| 01/29/1985 | CA1181843A1 Video disc player having caddy-actuated record receiving pads |
| 01/22/1985 | US4495530 Method of processing information signal with respect to opto-magnetic record medium |
| 01/22/1985 | CA1181520A1 Automatic video disc inverting mechanism |
| 01/16/1985 | EP0131469A2 Disk drive positioning system providing passive head crash protection |
| 01/15/1985 | US4494156 Selectable format computer disk copier machine |
| 01/15/1985 | US4494052 DC Motor servo system |
| 01/09/1985 | EP0130485A1 Control apparatus over recording of scenes for use in image recording system |
| 01/08/1985 | US4493072 Turntable device having rotary recording medium size changeover capability in a rotary recording medium reproducing apparatus |
| 01/08/1985 | US4492992 High storage density disc data store employing controlled-angular-velocity rotary medium |
| 01/08/1985 | CA1180663A2 Disc reproducing system for compensating mechanical imperfections |
| 01/03/1985 | WO1985000069A1 Apparatus for recording and reproducing signal |
| 01/02/1985 | CA1180443A Control system for flexible disk file |
| 12/25/1984 | US4490810 Automated instruction, game and data retrieval system |
| 12/18/1984 | CA1179770A1 Cartridge receiver mechanism |
| 12/11/1984 | US4488184 Videodisc playback system |
| 12/05/1984 | EP0126977A1 Floppy disk drive apparatus |
| 12/04/1984 | US4486795 Disc drive servo system |
| 12/04/1984 | US4486026 Sealing and bearing means by use of ferrofluid |
| 11/28/1984 | EP0126371A2 Floppy disk drive apparatus |
| 11/27/1984 | US4485465 Video disc player having turntable brake mechanism |
| 11/27/1984 | US4485337 Servo data driven motor speed control |
| 11/14/1984 | EP0124547A1 A brushless direct current motor with inverted magnet cup |
| 11/13/1984 | CA1177954A1 Rotary recording medium and a recording system thereof |
| 11/07/1984 | EP0123946A1 Reproducing rate control apparatus for information recording disc |
| 11/07/1984 | EP0123849A1 Disk storage file with a four phase, single phase drive stepping motor |
| 11/07/1984 | EP0123848A1 Apparatus for loading a flexible recording disk inposition in a storage file for data transfer |
| 11/06/1984 | US4481619 Turntable apparatus |
| 11/06/1984 | US4481615 Motor controlling circuit of reproducing apparatus and method of controlling |
| 10/30/1984 | CA1177168A1 Apparatus for reproducing disc record |
| 10/30/1984 | CA1177164A1 Apparatus for reproducing a pcm information signal from a record disc |
| 10/23/1984 | US4479154 Floppy disk drive with local processor control |
| 10/16/1984 | US4477838 Tangential error signal generator in PAL type video disc player |
| 10/16/1984 | US4477750 In an information storage device |
| 10/10/1984 | EP0120950A1 A mechanism for clamping and spinning a flexible disk |
| 10/09/1984 | US4476556 Apparatus for reproducing information from a record disc |
| 10/03/1984 | EP0120519A1 Record-disc player comprising a braking mechanism for braking a disc |
| 10/02/1984 | US4475185 Record player with vibration cancellation mechanism |
| 09/26/1984 | EP0041072B1 Rubber sheet for turntable |
| 09/25/1984 | US4473898 Device and method for controlling a pickup arm of an automatic record player |
| 09/19/1984 | EP0046793B1 Information storage apparatus |
| 09/18/1984 | US4472795 Periodical signal detection circuit within a variable window length |
| 09/18/1984 | EP0056799A4 Indicator device for cassettes loaded with magnetical information carrier. |
| 09/13/1984 | WO1984003580A1 Data transfer system using digital disc |
| 09/04/1984 | US4470137 Apparatus for rotatably supporting a recording member |
| 09/04/1984 | US4470054 Optical disc write/read apparatus with disc mounting means |
| 09/04/1984 | CA1173957A1 Media interchange switch for magnetic disk drives |
| 08/21/1984 | US4467465 Rotary recording medium reproducing apparatus having a jacket opening enlarging mechanism |
| 08/21/1984 | CA1172967A1 Sound reproducing apparatus |
| 08/14/1984 | US4466089 Information signal reproducing apparatus |
| 08/14/1984 | US4466033 Disk drive with automatic disc clamping and ejecting |
| 08/14/1984 | US4466032 Flexible disc recording and/or reproducing apparatus |
| 08/14/1984 | US4466025 Floppy disc device with a delay mechanism |
| 08/14/1984 | US4466024 Two-sided use of floppy disks |
| 08/14/1984 | US4465977 Erroneous pulse sequence detector |
| 08/14/1984 | CA1172753A1 Servo circuit for a motor for reproducing a pcm audio disk |
| 08/07/1984 | US4464744 Video disc player having turntable retention mechanism |
| 08/07/1984 | US4464743 Record playing apparatus |
| 08/07/1984 | US4464689 Random access read/write unit |
| 08/02/1984 | WO1984003007A1 An improved brushless dc motor |
| 08/01/1984 | EP0114509A1 Record disc reproducing apparatus |
| 08/01/1984 | EP0114186A1 Method for checking disk identity in a flexible disk recorder |
| 07/17/1984 | US4460930 Apparatus for a cassette |
| 07/17/1984 | US4460857 Encoder controlled apparatus for dynamic braking |
| 07/17/1984 | CA1171174A1 Servo system |
| 07/17/1984 | CA1171167A1 Mode selecting device for a video signal reproducing apparatus |
| 07/03/1984 | US4458347 Record centering and decoupling devices for turntables |
| 07/03/1984 | US4458273 Magnetic disk drive control apparatus and method |
| 06/20/1984 | EP0111010A1 Optical disc reproducer |
| 06/19/1984 | US4455640 Record playing device |
| 06/19/1984 | US4455637 Disc record player with automatic loading/unloading assembly |
| 06/13/1984 | EP0110511A2 Method and apparatus for authenticating memory disk |
| 06/13/1984 | EP0110050A1 Disc drive for flexible discs with different track widths |
| 06/05/1984 | US4453245 Apparatus for detecting position of a reproducing transducer in a rotary recording medium reproducing apparatus |
| 06/05/1984 | US4453188 Disk drive |
| 05/22/1984 | US4450552 Linear velocity control means |
| 05/22/1984 | US4450549 Compact bookshelf type record player |
| 05/16/1984 | EP0108225A2 Apparatus and method for transferring fault data from a recording device to a data processor |
| 05/15/1984 | US4449139 Optical disc unit, fabrication method and cooperating write and/or read apparatus |
| 05/10/1984 | WO1984001863A1 A brushless direct current motor with inverted magnet cup |
| 05/08/1984 | US4447900 Automatic video disc inverting mechanism |
| 05/08/1984 | US4447898 Simplified sound reproducing device driven by a spring motor |
| 05/08/1984 | CA1167159A1 Rotary recording medium reproducing apparatus capable of performing special reproduction |
| 05/02/1984 | EP0107380A2 A data storage device and a method of data storage |
| 04/24/1984 | US4445155 Flexible magnetic disk cassette and a recording and/or reproducing apparatus for the same |
| 04/24/1984 | US4445144 Method for detecting eccentricity in a video disc and in a video disc player |
| 04/24/1984 | US4445143 Means for compatibly reproducing video discs recorded according to different broadcast standards |