| Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351) |
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| 12/13/1983 | US4420827 Disc reproducing system |
| 11/23/1983 | EP0094852A1 Opto-electronic method for reading information from a magnetic disc, and circuit therefor |
| 11/23/1983 | EP0094678A1 Noise erasing method in radiation image recording and reproducing method |
| 11/22/1983 | US4417290 Multi-layer magneto-optical recording medium |
| 11/08/1983 | US4414650 Magneto-optic memory element |
| 11/08/1983 | CA1156709A1 Magneto-fluidic recording apparatus |
| 10/25/1983 | US4412264 Magneto-optic recording medium |
| 10/18/1983 | US4410277 Apparatus for detecting magneto-optical anisotropy |
| 10/12/1983 | EP0091122A2 Magneto-optical recording medium |
| 10/11/1983 | US4409631 Optical apparatus and method for reproducing information recorded in a magnetic recording medium |
| 10/04/1983 | US4407880 Substrate of member for recording information with light and method of manufacturing the same |
| 09/28/1983 | EP0089775A1 Method for manufacturing optical type recording medium |
| 09/27/1983 | CA1154532A1 Magneto-optical memory element |
| 09/20/1983 | US4405862 Radiation beam etching |
| 09/13/1983 | US4404599 Laser recording information and pilot signals for tracking on a grooveless recording |
| 08/30/1983 | CA1152941A1 Process for making discs |
| 08/09/1983 | CA1151769A2 Method and apparatus for controlling the speed of a movable information storage medium |
| 07/20/1983 | EP0083686A1 Audio/video quality monitoring system |
| 06/28/1983 | US4390600 Magneto-optic memory medium |
| 06/21/1983 | US4389445 Data is stored in polarizable macromolecular layer |
| 05/31/1983 | CA1147463A1 Optical recording disc and related method of manufacture |
| 05/18/1983 | EP0079262A1 Method of making disc copies from an original recording on a matrix |
| 05/11/1983 | EP0078673A2 Magneto-optical head assembly |
| 04/27/1983 | EP0077693A1 Optoelectronic device for reproducing information carried on a magnetic record carrier |
| 04/12/1983 | CA1144483A1 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 03/29/1983 | US4378491 Optical apparatus for sensing information from a phonograph record for controlling spacing and tracking of the pick-up relative to the record |
| 03/09/1983 | EP0073304A1 A method of storing data in a storage device |
| 02/22/1983 | USRE31160 Tracking control apparatus for use in apparatus for reproducing video signals from a rotary recording medium |
| 02/22/1983 | US4375096 Multi-bandwidth optical playback apparatus with elongated read spot |
| 02/16/1983 | EP0071753A2 Apparatus for accurately imaging information on a film by acharged particle beam |
| 02/15/1983 | US4374077 Photopolymerization of a deaerated bead spread between a patterned surface and a bondable surface; television; audio devices |
| 01/11/1983 | CA1139354A1 Thermal deformation record device |
| 01/05/1983 | EP0068312A1 Keel-tipped stylus, and method and device for making keel-tipped stylus |
| 12/14/1982 | US4363844 Base with electroconductive or electromagnetic reflective layer with depressions and insulating, transparent protective cover |
| 12/07/1982 | US4363058 Magnetic recording device |
| 12/07/1982 | US4363052 Thermomagnetic recording device |
| 11/16/1982 | US4359752 Magneto-fluidic recording apparatus |
| 11/11/1982 | WO1982003940A1 Method and apparatus for generating electron spin reversal in ferrimagnetic material |
| 10/06/1982 | EP0061892A2 Thermomagnetic recording methods |
| 09/22/1982 | EP0060477A1 Magneto-optical recording method |
| 09/21/1982 | CA1132254A1 Pick-up device for magnetically recorded information and method and system for using same |
| 09/01/1982 | EP0059084A1 Optical reader apparatus |
| 08/31/1982 | US4347112 Method of making a recording medium |
| 08/24/1982 | CA1130456A1 Information signal recording system |
| 08/05/1982 | EP0044840A4 Information carrying discs. |
| 07/20/1982 | US4340953 Information recording medium and recording and reproducing system using the same |
| 07/20/1982 | US4340914 Thermomagnetic recording and reproducing apparatus |
| 06/08/1982 | US4333991 Magnetic garnet film and manufacturing method therefor |
| 05/25/1982 | US4331976 High density recording system using side-by-side information and servo tracks |
| 05/12/1982 | EP0051296A1 A thermomagnetic recording medium and a method of thermomagnetic recording |
| 05/12/1982 | EP0051285A2 Method and apparatus for recording and playing back continuous-play video signals together with stop-motion video and audio signals |
| 04/27/1982 | US4327430 Information signal recording medium of rotary type with overlapped tracks |
| 04/15/1982 | WO1982001273A1 Method for processing an information signal and means for carrying out the method |
| 04/07/1982 | EP0049076A1 A method of information recording on a semiconductor wafer |
| 04/01/1982 | WO1982001098A1 Metallized information carrying discs |
| 03/30/1982 | US4322836 High density recording system using side-by side information and servo tracks |
| 03/23/1982 | US4321621 High density recording system using side-by-side information and servo tracks |
| 03/02/1982 | CA1119296A1 Information signal recording medium of the rotary type |
| 02/16/1982 | US4315878 Low quality core |
| 02/09/1982 | US4315283 High density recording system using side-by-side information and servo tracks |
| 02/03/1982 | EP0044840A1 Information carrying discs. |
| 01/27/1982 | EP0044345A1 Process for making video and similar discs. |
| 01/12/1982 | US4310899 Rare earth metal-iron-boron alloy |
| 01/08/1982 | EP0044345A4 Process for making video and similar discs. |
| 11/24/1981 | US4302523 Magnetic recording elements containing transparent recording layer |
| 11/17/1981 | CA1112762A1 Thermosensitive data-carrier and method |
| 11/11/1981 | EP0039463A1 Magnetic garnet film and manufacturing method therefor |
| 10/07/1981 | EP0037073A2 Centering device to make a centre hole in discs |
| 10/06/1981 | US4293621 Recording medium |
| 09/29/1981 | US4292511 Apparatus and method for reading an identifying label on an information record |
| 09/03/1981 | WO1981002491A1 Method of recording on an information carrier communicated in the form of electric signals |
| 08/25/1981 | USRE30723 Disc phonograph record playback by laser generated diffraction pattern |
| 08/06/1981 | WO1981002236A1 Process for making discs |
| 08/06/1981 | WO1981002137A1 Information carrying discs |
| 07/28/1981 | US4281407 Surface acoustic wave pickup and recording device |
| 07/28/1981 | CA1106061A1 Rotary recording medium with intermediate pits |
| 07/23/1981 | WO1981001981A1 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 07/22/1981 | EP0032452A2 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 07/21/1981 | US4279945 Acicular particles dispersed in a binder |
| 06/09/1981 | CA1102922A1 Forming electrically insulating layers |
| 05/26/1981 | US4270130 Thermal deformation record device with bleachable dye |
| 05/06/1981 | EP0028004A1 Magneto-fluidic recording apparatus |
| 05/05/1981 | CA1100633A1 Reproducing transducer capable of tracking control |
| 04/28/1981 | US4264911 Optical recording disc and related method of manufacture |
| 02/25/1981 | EP0024194A1 Optical record disc and method of making it |
| 02/24/1981 | CA1096494A1 Apparatus for reading a record carrier on which information for example video and or audio information is stored |
| 01/27/1981 | CA1094684A1 Apparatus for reading a record carrier with an optically readable information structure |
| 01/06/1981 | US4243849 Signal recording device |
| 12/30/1980 | US4242400 Magnetically structured materials |
| 10/30/1980 | WO1980002342A1 Signal recording/reproducing device |
| 10/14/1980 | US4228473 Pick-up device for magnetically recorded information and method and system for using same |
| 10/14/1980 | US4228050 Video discs of carbon black and polyvinyl chloride |
| 09/16/1980 | US4223050 Process for embossing a relief pattern into a thermoplastic information carrier |
| 09/02/1980 | US4220395 Polarization converter and circuit elements for use in optical waveguides |
| 08/06/1980 | EP0014046A1 A method for playback of a thermal recording element |
| 06/03/1980 | US4206477 Optical recording with track drop compensation |
| 05/15/1980 | WO1980001016A1 Magneto-optical anisotropy detecting device |
| 05/06/1980 | US4202022 Magnetic transfer record film and apparatus for magneto-optically reading magnetic record patterns using the same |
| 04/22/1980 | CA1076256A1 Stylus arm lifting/lowering apparatus for a video disc player |
| 02/26/1980 | US4190859 Tracking control apparatus for use in apparatus for reproducing video signals from a rotary recording medium |