| 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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| 10/18/1983 | US4409712 Method for making a stylus having a graphite electrode |
| 10/12/1983 | EP0091145A1 Grill |
| 10/11/1983 | US4409169 Method for manufacturing disk-shaped information carriers |
| 10/04/1983 | US4408315 Video disc player having stylus cleaning apparatus |
| 10/04/1983 | US4408310 Simplified sound reproducing device driven by a spring motor |
| 09/28/1983 | EP0089775A1 Method for manufacturing optical type recording medium |
| 09/28/1983 | EP0089451A1 Method of cleaning magnetic record disks |
| 09/27/1983 | US4406381 Stylus dispensing apparatus and method |
| 09/20/1983 | US4405671 Optical information recording disk |
| 09/20/1983 | CA1154160A1 Bidirectional deflector driver for video disc |
| 09/20/1983 | CA1153959A1 Record player |
| 09/13/1983 | US4404671 Linear drive motor control system |
| 09/13/1983 | US4404670 Pickup arm retainer for video disc cartridge |
| 09/13/1983 | US4404668 Sound reproducing device |
| 09/13/1983 | US4404667 Sound reproducing device driven by a constant torque pull string type spring and started by selective starter rods for playing multiple record grooves |
| 09/13/1983 | US4404599 Laser recording information and pilot signals for tracking on a grooveless recording |
| 09/13/1983 | US4404315 Molding compositions and diaphragms, arm pipes and head shells molded therefrom |
| 09/13/1983 | US4403880 Record cleaner/conditioner |
| 09/06/1983 | US4403316 Swing-arm device for an optical scanning unit |
| 09/06/1983 | CA1153466A1 Magnetic disk-jacket assembly |
| 08/31/1983 | EP0087154A2 Method and apparatus for the universal recording and playback of encoded digital video data |
| 08/31/1983 | EP0087020A1 Improved reproducing stylus and method of making same |
| 08/30/1983 | US4402072 Video disc mastering using gimballed air puck |
| 08/30/1983 | US4402071 Stationary record player |
| 08/30/1983 | CA1152941A1 Process for making discs |
| 08/16/1983 | US4399528 Automatic eject apparatus for a self-contained record player |
| 08/10/1983 | EP0085297A2 High quality delta modulator |
| 08/09/1983 | US4398281 Caddy loading video disc player |
| 08/09/1983 | US4398278 Record player program selector |
| 08/09/1983 | US4397805 Polymethyl methacrylate |
| 08/04/1983 | WO1983002705A1 Interactive video disc systems |
| 08/03/1983 | EP0084778A2 Multiple variable rate audio message recording and playback |
| 08/02/1983 | US4397015 Apparatus for moving a tone arm |
| 08/02/1983 | US4397013 Cantilever and phonograph pickup cartridge including said cantilever |
| 08/02/1983 | US4397012 Electrodynamic pickup cartridge having simplified coil structure |
| 08/02/1983 | US4395920 Digital stylus force gauge |
| 08/02/1983 | US4395814 Acoustic vibrating element of graphite and method of manufacturing same |
| 07/26/1983 | US4395742 Home apparatus |
| 07/26/1983 | US4395211 Method and device for manufacturing a plastic record carrier |
| 07/20/1983 | EP0083755A1 Method for the determination of noise pulses in signals recorded on sound carriers |
| 07/20/1983 | EP0083607A1 Improved peripheral rim for disc records |
| 07/12/1983 | US4393487 Stylus cartridge |
| 07/12/1983 | US4393419 Synchronizing signal detection protective circuit |
| 07/12/1983 | US4393414 Horizontal-rate phase-change of TV pixel distribution among multiple recorder tracks for dropout concealment |
| 07/12/1983 | CA1149948A1 Bidirectional pulse generator for video disc stylus deflector transducer |
| 07/12/1983 | CA1149941A1 Signal pickup device in a rotary recording medium reproducing apparatus |
| 07/05/1983 | US4392160 Playback system for video disk having plural information tracks |
| 07/05/1983 | US4391720 For conductive high density information disks |
| 07/05/1983 | US4391696 Method and apparatus for holding styli |
| 06/29/1983 | EP0082543A1 Phonorecord cleaner |
| 06/29/1983 | EP0082390A2 Method for detecting excentricity in a video disc and in a video disc player |
| 06/28/1983 | US4390487 Plastic such as polyvinyl chloride mixed with carbon black |
| 06/28/1983 | US4390382 Tone arm manufacturing method |
| 06/23/1983 | WO1983002192A1 Video cartridge with preplay stylus and holding fingers |
| 06/21/1983 | US4389718 Phonograph decoupling apparatus and method |
| 06/14/1983 | US4388714 Technique for uniform stylus configuration |
| 06/07/1983 | US4387453 Turntable system with low aggregate resonance |
| 06/07/1983 | US4387068 Method for the manufacture of flexible disks |
| 05/31/1983 | CA1147464A1 Stylus position sensor for video disc player apparatus |
| 05/31/1983 | CA1147268A1 Disc reproducing system for compensating mechanical imperfections |
| 05/26/1983 | WO1983001872A1 Combined linear motor and carriage |
| 05/25/1983 | EP0079538A1 Method and device for cutting information into a record carrier |
| 05/24/1983 | CA1146732A1 Method for fabricating flyleads for video disc styli |
| 05/18/1983 | EP0079262A1 Method of making disc copies from an original recording on a matrix |
| 05/17/1983 | US4383961 Spraying with fluorocarbon |
| 05/11/1983 | EP0078492A2 Method of controlling storage device |
| 05/11/1983 | EP0078383A1 Shaving suction apparatus |
| 05/10/1983 | CA1146086A1 Record player |
| 05/10/1983 | CA1146085A1 Phonograph having an improved tone arm assembly |
| 05/03/1983 | US4382292 Video disc player having stylus position sensing apparatus |
| 04/26/1983 | USRE31223 Track skipper for video disc player |
| 04/26/1983 | US4381558 Talking greeting card |
| 04/26/1983 | CA1145467A1 Video disc stylus position sensor system |
| 04/26/1983 | CA1145464A1 Programmed video record disc and related playback apparatus |
| 04/20/1983 | EP0077241A1 Process for removing an information carrying disc from the mould, and apparatus for carrying out the process |
| 04/19/1983 | CA1144869A1 Record cleaning device |
| 04/19/1983 | CA1144868A1 Record player |
| 04/12/1983 | CA1144483A1 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 04/06/1983 | EP0075923A2 Apparatus for controlling linear tracking arm in record player |
| 03/30/1983 | EP0075301A1 Protection envelope for a disk-shaped audio and/or video signal record carrier with antistatic action |
| 03/29/1983 | US4378597 Record cleaning device |
| 03/29/1983 | CA1143837A1 Stylus position sensing apparatus for video disc player |
| 03/29/1983 | CA1143662A1 Stylus lifting/lowering actuator with improved electromagnetic motor |
| 03/29/1983 | CA1143517A1 Apparatus for producing centrally apertured record discs |
| 03/16/1983 | EP0074131A1 Swinging-arm device for an optical scanning unit |
| 03/16/1983 | EP0074058A2 Disc coating method |
| 03/15/1983 | CA1142719A1 Method of producing plate-shaped body |
| 03/09/1983 | EP0073491A2 Turntable platter for record players |
| 03/08/1983 | US4376305 Automatic record player |
| 03/08/1983 | US4376087 Processing of video discs |
| 02/23/1983 | EP0072378A1 Method relating to disc forming |
| 02/22/1983 | US4375093 Intermusic detecting circuit for automatic music selecting device |
| 02/22/1983 | US4375092 Automatic music selecting device |
| 02/15/1983 | US4374434 Video disc stylus cartridge with protective member |
| 02/15/1983 | US4374077 Photopolymerization of a deaerated bead spread between a patterned surface and a bondable surface; television; audio devices |
| 02/08/1983 | US4373199 Apparatus for electromagnetically imparting stylus force for sound reproducing device comprising an inhibit circuit for shock noise of reproducing stylus |
| 02/08/1983 | US4372042 Method for manufacturing diamond pick-up stylus |
| 02/08/1983 | CA1141027A1 Arm driving device in linear tracking pickup apparatus |
| 01/26/1983 | EP0070514A2 A method for manufacturing an information memory disk |
| 01/25/1983 | US4370740 Rotary recording medium |