| Patents for G11B 3 - Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor (2,921) |
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| 06/01/1982 | US4333174 Transducer displacement apparatus for video disc player |
| 06/01/1982 | US4332050 Self-propelled record cleaner |
| 06/01/1982 | CA1124655A1 Phonograph record player |
| 06/01/1982 | CA1124504A1 Gramophone record composition |
| 05/25/1982 | US4332024 Phonograph tone arm with counterweight and method of use |
| 05/25/1982 | US4332023 Stationary record player |
| 05/25/1982 | US4331976 High density recording system using side-by-side information and servo tracks |
| 05/25/1982 | US4330915 Technique for uniform stylus configuration |
| 05/25/1982 | CA1124397A1 Pickup needle cleaning device for record disk playback apparatus |
| 05/18/1982 | US4330884 Pickup arm device |
| 05/18/1982 | US4330882 Apparatus for monitoring a wideband electromechanical recording system |
| 05/18/1982 | US4330881 Video disc apparatus for clearing foreign matter from the signal pickup stylus during playback |
| 05/18/1982 | US4330583 Coating of hydroxylated amine and polysiloxane or silicon-containing compound; antideposit agents; television; audio devices |
| 05/18/1982 | US4329753 Device for cleaning sensitive surfaces of solid bodies |
| 05/11/1982 | US4329575 Video disc having a label for identifying material recorded thereon |
| 05/04/1982 | US4328575 Disc player having turntable height varying apparatus |
| 04/27/1982 | US4327437 Reconfiguring redundancy management |
| 04/27/1982 | US4327434 Video disc stylus position sensor system |
| 04/27/1982 | US4327047 Using recessed center pin in mold |
| 04/21/1982 | EP0049946A2 Apparatus for positioning a transducer with respect to a track |
| 04/21/1982 | EP0049934A1 Optically readable information disk |
| 04/20/1982 | US4326286 Automatic recorder player |
| 04/20/1982 | US4326285 Stereo phonograph cartridge |
| 04/20/1982 | US4326283 Cartridge alignment system |
| 04/15/1982 | WO1982001273A1 Method for processing an information signal and means for carrying out the method |
| 04/13/1982 | US4325136 Video disc player having carriage drive apparatus |
| 04/13/1982 | US4325132 Unitary phonograph cartridge and head assembly |
| 04/13/1982 | US4325131 Tone arm bearing system |
| 04/13/1982 | CA1121737A1 Record cleaner |
| 04/13/1982 | CA1121736A1 Circuit for suppressing noise caused by scratches on a gramophone record |
| 04/07/1982 | EP0049095A1 Record cleaning mechanism |
| 04/06/1982 | US4323998 Video disc locked groove corrector |
| 04/06/1982 | US4323997 Linear-tracking pick-up arm drive assembly |
| 03/30/1982 | US4322840 Arm driving device in linear tracking pickup apparatus |
| 03/30/1982 | US4322836 High density recording system using side-by side information and servo tracks |
| 03/30/1982 | CA1121049A1 Cartridge and flexible magnetic disk assembly |
| 03/24/1982 | EP0048211A1 Device for moulding articles by compression |
| 03/24/1982 | EP0048161A1 Phonograph |
| 03/23/1982 | US4321702 Carriage reset apparatus for disc record player |
| 03/23/1982 | US4321621 High density recording system using side-by-side information and servo tracks |
| 03/23/1982 | US4320567 Optical inspection method for determining machinability |
| 03/17/1982 | EP0047387A1 Process for manufacturing optically readable information carriers |
| 03/16/1982 | US4320496 Tone arm return systems for record player with eccentric spindle hole immunity |
| 03/16/1982 | US4320495 Tone arm return system for record player with eccentric spindle hole immunity |
| 03/16/1982 | US4320493 Linear tracking arm assembly with electric brake |
| 03/16/1982 | US4320492 Variable weight phonograph cartridge |
| 03/16/1982 | US4320487 Video disc stylus control apparatus |
| 03/09/1982 | US4318877 Video disc molding process |
| 03/09/1982 | CA1119533A2 Automatic record player |
| 03/09/1982 | CA1119532A2 Automatic record player |
| 03/09/1982 | CA1119531A2 Automatic record player |
| 03/09/1982 | CA1119530A2 Automatic record player |
| 03/09/1982 | CA1119529A2 Automatic record changer |
| 03/09/1982 | CA1119363A1 Adhesive coated roller for cleaning gramophone records |
| 03/02/1982 | CA1119304A1 Apparatus and method for record reorientation following error detection in a data storage subsystem |
| 02/23/1982 | US4317192 Head suspension velocity control apparatus for electromechanical recorder |
| 02/23/1982 | US4317190 Pickup arm movement control system for record player |
| 02/17/1982 | EP0046000A1 Video disc support assembly |
| 02/16/1982 | US4316280 Compensator for the horizontal angular error of a record player arm |
| 02/16/1982 | US4315878 Low quality core |
| 02/16/1982 | US4315723 Device for molding information-carrying disks |
| 02/16/1982 | US4315358 Method for the manufacture of capacitive pickup styli |
| 02/09/1982 | US4315283 High density recording system using side-by-side information and servo tracks |
| 02/04/1982 | WO1982000383A1 Turntable system with low aggregate resonance |
| 02/04/1982 | WO1982000382A1 Method for reducing the error of the angle of rake on a rotating disc for the transmission of information particularly acoustic signals and equipment for the implementation of such method,particularly pick-up arm |
| 02/03/1982 | EP0044840A1 Information carrying discs. |
| 02/02/1982 | US4314292 Magnetic recording or reproducing apparatus |
| 02/02/1982 | US4313978 Antistatic compositions and treatment |
| 02/02/1982 | US4313718 Method for the manufacture of flexible disks and apparatus for performing this method |
| 02/02/1982 | CA1117436A1 Tone arm driving apparatus |
| 01/27/1982 | EP0044608A1 Improvements relating to flash trimming of disc records |
| 01/27/1982 | EP0044345A1 Process for making video and similar discs. |
| 01/26/1982 | US4313189 Stylus position sensor for video disc player apparatus |
| 01/26/1982 | US4313062 Bidirectional deflector driver for video disc |
| 01/26/1982 | US4312823 Method of manufacturing a plastic record carrier having a stratified structure |
| 01/20/1982 | EP0043864A1 Pick-up stylus with exchangeable mounting |
| 01/19/1982 | US4312061 Record player |
| 01/12/1982 | US4310918 Tone arm driving apparatus |
| 01/12/1982 | US4310917 Pick-up |
| 01/12/1982 | US4310915 Dual parallelogram cutterhead suspension apparatus |
| 01/12/1982 | US4310913 Stylus tracking aid using two bimorph elements longitudinally aligned |
| 01/08/1982 | EP0044345A4 Process for making video and similar discs. |
| 12/29/1981 | US4308337 Uniform light exposure of positive photoresist for replicating spiral groove in plastic substrate |
| 12/29/1981 | CA1115415A1 Drive circuit for controlling a movable magnetic head |
| 12/22/1981 | US4307045 Ultraviolet radiation, oxygen |
| 12/22/1981 | CA1114949A2 Stylus for reproducing information signals recorded on a recording medium |
| 12/16/1981 | EP0041799A1 Stereophonic pick-up cartridges |
| 12/15/1981 | US4306013 Asymmetrical radiation exposure of spin coated photoresist to obtain uniform thickness coating used to replicate spiral grooves in plastic substrate |
| 12/08/1981 | US4305147 Tone arm damping device |
| 12/08/1981 | US4305146 Disc player having disc stabilizing apparatus |
| 12/08/1981 | US4305145 Spindle retracting mechanism for disc record player |
| 12/08/1981 | US4304806 Information carrying discs |
| 12/08/1981 | US4304060 Phonograph actuated elements |
| 12/01/1981 | US4303999 Phonograph having an improved tone arm assembly |
| 11/24/1981 | US4302834 Phonograph pickup arm |
| 11/24/1981 | US4302833 Automatic record size detector |
| 11/24/1981 | US4302832 Radial-tracking programmable record player with record handling door mechanism |
| 11/24/1981 | US4302411 Method of producing plate-shaped body |
| 11/24/1981 | US4302307 Method for the improvement of gramophone records |
| 11/17/1981 | US4301528 Tone arm mechanism |