| 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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| 03/13/1979 | CA1050658A1 Video recorder |
| 02/20/1979 | CA1049139A1 Pickup arm control for video disc player |
| 02/13/1979 | US4139874 Magnetic disc recording and/or reproducing apparatus with means to damp and lock disk rotation |
| 02/06/1979 | US4138728 Electronic tachometer with variable bandwidth differentiator |
| 02/06/1979 | US4138059 Card handling device |
| 01/30/1979 | CA1047410A1 Phonograph with photoelectric scanning |
| 01/23/1979 | US4136369 Disc recorder with lead screw drive |
| 01/23/1979 | US4135721 Video disc player |
| 01/16/1979 | US4134593 Automatically operated record player system |
| 01/02/1979 | US4132935 Phonograph turntable control system |
| 01/02/1979 | US4132414 Gramophone turntable apparatus |
| 01/02/1979 | US4132413 Toy phonograph |
| 12/26/1978 | US4131829 Electric power converting apparatus for use in battery cars |
| 12/26/1978 | US4131828 Apparatus for rotatively driving a turn table |
| 12/12/1978 | CA1044155A1 Turntable mat |
| 11/28/1978 | US4127799 Apparatus for damping rotation of turntable |
| 11/14/1978 | CA1042357A1 Portable recorder control apparatus |
| 11/07/1978 | US4124872 Record/playback apparatus |
| 11/07/1978 | US4124868 Head control means for optical videodisc player |
| 11/07/1978 | US4124215 Inertial phonograph device |
| 10/31/1978 | US4123779 Turntable rotational speed and phase control system for a video disc play/record apparatus |
| 10/31/1978 | US4123065 Phonograph for use with record cartridges |
| 10/17/1978 | US4120504 Disk tracking and support apparatus |
| 10/10/1978 | CA1040303A1 Synchronization of multiple disc drives |
| 10/03/1978 | US4118038 Vibration transmission mechanism for a phonograph |
| 10/03/1978 | US4118037 Record player |
| 10/03/1978 | US4117737 Drive belt loading system |
| 09/26/1978 | CA1039401A1 Velocity correction transducer |
| 09/19/1978 | US4114893 Gramophone equipment |
| 09/19/1978 | CA1038775A1 Device in an automatic record player or a record changer for the combined adjustment of the turntable speed and the pick-up lowering position |
| 09/12/1978 | US4113264 Phonograph record player |
| 09/12/1978 | CA1038302A1 Turntable assembly for phonograph records |
| 09/12/1978 | CA1038301A1 Turntable assembly for phonograph records |
| 09/05/1978 | US4112470 System for repeatedly reproducing a recorded material of a limited duration |
| 09/05/1978 | US4111431 Record player with record determining means |
| 08/29/1978 | US4110670 Braking apparatus |
| 08/22/1978 | US4109114 Programmable phonograph device |
| 08/15/1978 | USRE29730 Automatic record player |
| 08/15/1978 | US4107489 Switch mechanism for simple phonograph |
| 08/15/1978 | US4106776 Fluidically supported and fluidically driven turntable |
| 07/18/1978 | US4101945 Drive spindle assembly for disc file |
| 07/11/1978 | US4100465 Turntable speed control system |
| 07/04/1978 | US4098510 Record player |
| 06/13/1978 | US4094511 Belt-driven record player |
| 06/06/1978 | US4094010 Optical multi-channel digital disc storage system |
| 06/06/1978 | US4093832 Programmable record changer |
| 05/30/1978 | US4092671 Video player having plural safety devices actuated by unlatching |
| 05/16/1978 | US4090117 Magnetic disc apparatus |
| 05/02/1978 | US4087710 Pulse train disc |
| 04/25/1978 | US4086659 Control system for disk drive |
| 04/25/1978 | US4086617 Video disc player mechanism control system |
| 04/04/1978 | US4082293 Phonograph record player or changer |
| 04/04/1978 | US4082290 Automatic record player mechanism for turntable speed and pick-up arm position adjustment |
| 03/28/1978 | US4081184 Amusement apparatus |
| 03/21/1978 | US4079946 Turntable assembly for phonograph records |
| 03/21/1978 | US4079944 Cueing device for phonographs |
| 03/21/1978 | US4079942 Method of and apparatus for controlling turntable speed |
| 03/14/1978 | US4078808 Dual record toy phonograph |
| 02/28/1978 | US4076256 Stylus shift mechanism for a phonograph having two concentric records |
| 02/21/1978 | US4075671 Automatic ac biasing of a magnetoresistive element |
| 02/07/1978 | US4072874 Direct drive for turntables |
| 02/07/1978 | US4072315 Turntable direct-drive system |
| 01/31/1978 | US4071252 Fluidically driven turntable |
| 01/10/1978 | US4068271 Interchangeable magnetic storage element |
| 12/20/1977 | US4064545 Magnetic coupling of disk file module |
| 12/13/1977 | US4063286 Video disc player |
| 12/13/1977 | US4062547 Automatic control for phonographs playing records of different speeds |
| 12/06/1977 | US4062049 Integrated Disk File Module and memory storage system |
| 11/15/1977 | US4058844 Low-mass short-stroke voice-coil actuator for integrated disk file module |
| 10/18/1977 | US4054291 Turntable assembly for phonograph records |
| 09/20/1977 | US4049280 Pickup cartridge |
| 09/13/1977 | US4047721 Drive device with belt and stepped speed pulley |
| 09/06/1977 | US4047229 Velocity controlled manual movement credit card reader |
| 08/30/1977 | US4045776 Electronic phonograph selector and memory system |
| 08/09/1977 | US4040635 Releasable stylus arm magnetic coupling |
| 08/02/1977 | US4040107 Disk positioning and ejection device in a disk drive |
| 08/02/1977 | US4040106 Flexible magnetic disc drive apparatus |
| 08/02/1977 | US4039194 Automatic record player |
| 06/28/1977 | US4032971 Video player having safety devices actuated by unlatching |
| 06/28/1977 | US4031634 Teaching device |
| 06/07/1977 | US4027887 Toy phonograph with automatic pickup arm return means |
| 05/31/1977 | US4026611 Bearing arrangement |
| 05/17/1977 | US4024473 Stroboscopic device |
| 04/19/1977 | US4018984 Video disc record having spirally aligned sync storage locations |
| 04/12/1977 | US4017678 End-of-play control system |
| 03/22/1977 | US4013157 Bonus play machine |
| 03/15/1977 | US4012048 Acoustic damping turntable and adapter |
| 02/15/1977 | US4008491 Fixed head, direct access storage device |
| 02/15/1977 | US4008424 Bidirectional speed control system |
| 02/08/1977 | US4007492 Rotational speed monitor |
| 01/25/1977 | US4005490 Magnetic disc memory |
| 01/25/1977 | US4004816 Programmer for record player |
| 01/25/1977 | US4004815 Miniature toy sound-reproducing device |
| 01/04/1977 | US4000906 Two-speed automatic phonograph |
| 12/14/1976 | US3997917 Card handling apparatus |
| 12/14/1976 | US3997174 Turntable mat |
| 12/07/1976 | US3995866 Record player mat |
| 10/26/1976 | US3988658 Electromagnetic drive assembly for rotary bodies using a magnetically mounted rotor |
| 10/26/1976 | US3988542 Variable message recorder using a disc without grooves and a single motor to provide both turntable drive and spiral scanning |
| 10/26/1976 | US3988024 Turntable apparatus |