| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
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| 06/27/1984 | EP0111654A1 Apparatus for generating a velocity profile for movement of a body by a servo system |
| 06/26/1984 | US4456938 Manufacturing apparatus for adjusting the position of a magnetic head in a flexible disk drive |
| 06/26/1984 | US4456936 Cantilevered transducer carriage |
| 06/26/1984 | US4456935 Information recording apparatus with a disc loaded in a cassette |
| 06/26/1984 | US4456934 Linear positioning system |
| 06/19/1984 | US4455583 Compensation for dimensional changes in a record medium |
| 06/13/1984 | EP0110212A2 Air bearing magnetic head slider assembly |
| 06/13/1984 | EP0110006A1 Apparatus and method for releasing the magnetic head in a magnetic disk file |
| 06/12/1984 | US4454549 Slant track sector servo |
| 06/12/1984 | CA1169148A1 Tracking device |
| 06/05/1984 | US4453245 Apparatus for detecting position of a reproducing transducer in a rotary recording medium reproducing apparatus |
| 06/05/1984 | US4453243 Linear tracking arm drive apparatus |
| 05/23/1984 | EP0108960A2 Improved fluid bearing for axially movable head |
| 05/22/1984 | US4450493 Magnetic head slider and actuator assembly |
| 05/22/1984 | US4450489 Floating disc photoconductive film reader |
| 05/16/1984 | EP0108500A1 Apparatus for positioning a head relative to a magnetic disc |
| 05/16/1984 | EP0108226A1 Servo track encodement system in a disk file |
| 05/16/1984 | EP0108224A1 Track following buried servo system in a magnetic disk file |
| 05/16/1984 | EP0108207A2 Disk drive head accessing mechanism |
| 05/16/1984 | EP0108060A1 Sector servo seek control. |
| 05/15/1984 | US4449213 Optical reading apparatus |
| 05/15/1984 | US4449160 Arrangement for holding a part attached to a support frame held against a rotatable member which is mounted within that support frame |
| 05/15/1984 | US4449155 Gimbal assembly for flying magnetic transducer heads |
| 05/15/1984 | CA1167566A1 Video disc player having carriage drive apparatus |
| 05/10/1984 | WO1984001849A1 Fine and coarse servo system for access and tracking on an optical disk |
| 05/09/1984 | EP0107853A2 Magnetic disk drive apparatus |
| 05/09/1984 | EP0035505B1 Media wear distribution apparatus |
| 05/08/1984 | CA1167159A1 Rotary recording medium reproducing apparatus capable of performing special reproduction |
| 05/02/1984 | EP0107411A1 Floating head slider |
| 05/02/1984 | EP0107380A2 A data storage device and a method of data storage |
| 04/25/1984 | EP0106704A1 Video disc player |
| 04/25/1984 | EP0106661A2 Method and apparatus for disk drive alignment |
| 04/24/1984 | US4445188 Media distribution of head contact wear on a disc |
| 04/24/1984 | US4445153 Method of correcting track misalignment of floppy disc and apparatus therefor |
| 04/24/1984 | US4445144 Method for detecting eccentricity in a video disc and in a video disc player |
| 04/17/1984 | US4443869 In an information playback system |
| 04/17/1984 | US4443824 For use in a disk file apparatus |
| 04/17/1984 | US4443823 Controlling the trace of a rotary head |
| 04/17/1984 | US4443721 Electrodynamic device for translating an objective |
| 04/17/1984 | CA1165870A1 Device for locating a desired information track |
| 04/12/1984 | WO1984001466A1 Magnetic record/playback head positioning apparatus |
| 04/11/1984 | EP0105094A2 Method of monitoring the flight of a magnetic transducer head |
| 04/10/1984 | US4442516 Drive mechanism for disc player with bearing supported slider |
| 04/04/1984 | EP0104941A2 Data storage devices |
| 04/04/1984 | EP0104701A1 Apparatus for reading a record carrier |
| 04/04/1984 | EP0104700A1 Method of recording a digital information signal on a record carrier, record carrier provided with such an information signal, and read/write apparatus for such a record carrier |
| 04/03/1984 | US4441176 Damping mechanism for a video disc stylus holder |
| 04/03/1984 | US4441130 Carriage for a scanning head in recording and/or playback apparatus for disk records |
| 03/29/1984 | WO1984001235A1 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 03/27/1984 | US4439848 Focusing system for video disc player |
| 03/27/1984 | US4439800 Servo control of seek operation in magnetic disk drive |
| 03/27/1984 | US4439792 Swing arm arrangement for a magnetic disc storage apparatus |
| 03/27/1984 | US4439791 Slow-motion reproducing system in an apparatus for reproducing rotary recording medium with mode dependent skip pulse generator and field memories |
| 03/27/1984 | CA1164557A1 Carriage alignment apparatus for video disc player |
| 03/21/1984 | EP0103493A1 Improved bang-bang controlled velocity command generator |
| 03/21/1984 | EP0103492A1 Cylinder crossing detector for disc drive |
| 03/20/1984 | US4438469 Deflectable transducer mounting assembly |
| 03/20/1984 | US4438467 Magnetic disk track following servo burst amplitude drop compensation |
| 03/20/1984 | US4438213 Magnetic head slider material and method for producing the same |
| 03/14/1984 | EP0102607A1 Disc playback apparatus |
| 03/13/1984 | US4437132 Flexible magnetic disk device |
| 03/07/1984 | EP0102057A1 Optical disc apparatus |
| 03/07/1984 | EP0102043A2 Magnetic head driving unit |
| 03/06/1984 | US4435797 In a high density storage system |
| 02/29/1984 | EP0101616A2 Magnetic head shifting means for flexible disk memory system |
| 02/21/1984 | US4433409 Pick-up assembly for video disc player |
| 02/21/1984 | US4433402 Reference signal detection circuit in a rotary recording medium reproducing apparatus |
| 02/21/1984 | US4433352 Device for recording and/or reading binary data on both faces of a flexible magnetic disk |
| 02/21/1984 | CA1162643A1 Rotary actuator assembly for disk drive head positioner |
| 02/14/1984 | US4432083 Optical memory system having track following |
| 02/14/1984 | US4432082 Optical memory system having a long seek capability |
| 02/14/1984 | US4432026 Apparatus and method for determining read head position |
| 02/14/1984 | US4432021 Rotary recording medium reproducing apparatus |
| 02/07/1984 | US4430440 Magnetic head slider material |
| 02/07/1984 | CA1161952A1 Carriage reset apparatus for disc record player |
| 02/01/1984 | EP0099651A2 Optical data storage |
| 01/31/1984 | US4429379 Device for controlling tone arm carrying moving coil type pickup |
| 01/31/1984 | US4429376 Video disc stylus deflector system |
| 01/31/1984 | US4429335 Rotary recording medium reproducing apparatus capable of performing special reproduction |
| 01/31/1984 | CA1161555A1 Apparatus for optically reading a disc-shaped record carrier in particular for rapidly locating a desired programme section |
| 01/24/1984 | US4428074 High-speed search system in a rotary recording medium reproducing apparatus |
| 01/24/1984 | US4428003 Periodical signal detection circuit in a reproducing apparatus |
| 01/24/1984 | US4428002 Special effects video disc reproducing system for eliminating picture flicker |
| 01/24/1984 | CA1161161A1 Disc head arm position controller using digital velocity sensing |
| 01/24/1984 | CA1161160A1 Read/write chain |
| 01/17/1984 | US4426692 Rotary recording medium having an improved three frequency pickup tracking control and reproducing apparatus therefor |
| 01/11/1984 | EP0097774A2 Transducing system |
| 01/11/1984 | EP0097768A2 A servo positioning system for a magnetic disc |
| 01/10/1984 | US4425587 Videodisc playback apparatus |
| 01/10/1984 | US4425584 Video signal recording and/or reproducing system |
| 01/04/1984 | EP0097209A1 Magnetizable recording disk and disk file employing servo sector head positioning |
| 01/04/1984 | EP0097208A1 Head positioning system with automatic gain control |
| 01/03/1984 | US4424583 Pickup cartridge having a ribbed cantilever |
| 01/03/1984 | US4424543 Method and apparatus for recording transducer positioning information |
| 01/03/1984 | US4424539 Magnetic disk-control track read through envelope |
| 12/27/1983 | US4423504 Height position adjusting device for a reproducing transducer in a rotary recording medium reproducing apparatus |
| 12/27/1983 | US4423500 Stylus lifting/lowering actuator with air damping |
| 12/27/1983 | US4423497 Rotary recording medium reproducing apparatus capable of performing special reproduction |
| 12/27/1983 | US4423449 Movable magnetic head block assembly for a double sided flexible disk storage device |
| 12/27/1983 | US4423447 Head positioning mechanism for magnetic disc memory device |