| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
|---|
| 12/11/1984 | US4488187 Servo control apparatus |
| 12/11/1984 | US4488184 Videodisc playback system |
| 12/11/1984 | US4488098 Position control system for a movable member |
| 12/05/1984 | EP0127058A2 Positioning device for objects, particularly magnetic heads |
| 12/05/1984 | EP0126973A1 Disc storage device with positioning assembly and locking solenoid |
| 12/04/1984 | US4486875 Video disc player having lifter driving circuit |
| 12/04/1984 | US4486870 Optical data storage |
| 12/04/1984 | US4486797 Sliding mask variable resolution velocity trajectory for track following servo |
| 12/04/1984 | US4486796 Apparatus and method for controlling the position of a rotary head |
| 12/04/1984 | US4486790 Drive circuit for feeding a reproducing element across a rotary medium having signals recorded thereon |
| 11/28/1984 | EP0126371A2 Floppy disk drive apparatus |
| 11/27/1984 | US4485418 System and method of locating the center of a track on a magnetic storage disk |
| 11/27/1984 | US4485414 Servo system for positioning a movable transducing head assembly |
| 11/21/1984 | EP0125655A2 Magnetic head retaining device |
| 11/20/1984 | US4484241 Automatic lock for head-carriage assembly in a disk file |
| 11/20/1984 | US4484174 Video disc player having improved squelch system |
| 11/14/1984 | EP0125051A2 Recording and/or reproducing apparatus with tracking servo-mechanism responsive to FM crosstalk components |
| 11/14/1984 | EP0125019A1 Device for controlling recording track jump operations |
| 11/14/1984 | EP0124580A1 Fine and coarse servo system for access and tracking on an optical disk. |
| 11/13/1984 | US4482992 Skip/arm servo system for a video disc player |
| 11/13/1984 | US4482925 Quick-motion reproducing system in a rotary recording medium reproducing apparatus |
| 11/13/1984 | CA1177955A1 Rotary recording medium reproducing apparatus |
| 11/13/1984 | CA1177954A1 Rotary recording medium and a recording system thereof |
| 11/07/1984 | EP0123946A1 Reproducing rate control apparatus for information recording disc |
| 11/07/1984 | EP0123849A1 Disk storage file with a four phase, single phase drive stepping motor |
| 11/07/1984 | EP0123674A1 Linear head actuator |
| 11/06/1984 | US4481614 Velocity correction apparatus for disc record player |
| 11/06/1984 | US4481613 Optical disk apparatus |
| 11/06/1984 | US4481550 Method and apparatus for following a recorded data track with a read head |
| 11/06/1984 | US4481543 Playback apparatus for producing still images |
| 10/30/1984 | US4480280 Rotary recording medium reproducing apparatus address search |
| 10/30/1984 | US4480279 Magnetic disk memory track change servo |
| 10/30/1984 | US4480217 Automatic velocity calibrator for a velocity servo loop in a magnetic disk drive |
| 10/23/1984 | US4479208 Signal pickup device for capacitance disk records |
| 10/23/1984 | US4479090 Circuitry for measuring magnetic head flying characteristics |
| 10/17/1984 | EP0121590A2 Disk drive alignment analyzer |
| 10/16/1984 | US4477838 Tangential error signal generator in PAL type video disc player |
| 10/16/1984 | US4477755 Method of suppressing seek-excited vibration in a disk drive or similar servo system |
| 10/11/1984 | WO1984003985A1 Center supported actuator carriage assembly |
| 10/10/1984 | EP0121145A1 System for detecting the position of a read-write head on a disk recording medium having data and servo sectors |
| 10/10/1984 | EP0121057A1 Transducer suspension |
| 10/10/1984 | EP0120951A1 Magnetic record/playback head positioning apparatus |
| 10/09/1984 | US4476555 Tracking servo apparatus for an optical information reproducing system |
| 10/09/1984 | US4475281 Transducer head positioning adapter for fixed head flexible disk drives |
| 10/02/1984 | US4475136 Device for positioning objects which have a low mass |
| 10/02/1984 | US4475135 Magnetic head air bearing slider |
| 09/26/1984 | EP0119488A1 Position detecting apparatus |
| 09/26/1984 | EP0119201A1 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus. |
| 09/25/1984 | US4473899 Pickup carriage transporting mechanism for a disk record player and method for manufacturing the same |
| 09/25/1984 | US4473898 Device and method for controlling a pickup arm of an automatic record player |
| 09/25/1984 | US4473855 Magnetic transducer platforms with protective fairing |
| 09/19/1984 | EP0118626A1 Apparatus for recording and/or reading information on an optically readable disc |
| 09/19/1984 | EP0046793B1 Information storage apparatus |
| 09/18/1984 | US4472795 Periodical signal detection circuit within a variable window length |
| 09/18/1984 | US4472750 Data record with pre-recorded transducer positioning signals, and system for utilizing same |
| 09/17/1984 | EP0123674A4 Linear head actuator. |
| 09/17/1984 | EP0112330A4 Head lift mechanism. |
| 09/13/1984 | WO1984003583A1 System for sensing the rotational position of a rotating disk having coarse seek tracks |
| 09/11/1984 | US4471478 Video disc player having carriage locking mechanism |
| 09/11/1984 | US4471396 Disc recording apparatus including integral track zero and crash stop means |
| 09/11/1984 | CA1174357A1 Head positioning servo for disk drive |
| 09/05/1984 | EP0117520A2 Voice coil actuator and method of manufacturing a coil for such an actuator |
| 09/04/1984 | US4470137 Apparatus for rotatably supporting a recording member |
| 09/04/1984 | US4470130 Apparatus for lifting and lowering a linear tracking tone arm in a record player |
| 09/04/1984 | US4470088 Pivot suspension for head arm on disk drive |
| 09/04/1984 | US4470087 Head base drive mechanism in tape player |
| 09/04/1984 | US4470078 Pulse driven control circuit for moving a transducer across a rotary recording medium of pulses applied thereto |
| 09/04/1984 | CA1173958A1 Servo system for data storage apparatus |
| 08/30/1984 | WO1984003387A1 Apparatus for controlling tracking of recorded disc reproduction device |
| 08/29/1984 | EP0117158A1 Disc drive carriage slide assembly |
| 08/29/1984 | EP0116691A2 Inspection device for write-read heads of disc data carriers in electronical data processing installations |
| 08/28/1984 | US4468764 Disc reproducing apparatus |
| 08/28/1984 | US4468712 Positioner apparatus for tape recorder heads |
| 08/16/1984 | WO1984003168A1 Magnetic transducer positioning apparatus |
| 08/14/1984 | US4466088 Galvo position sensor for track selection in optical data disk system |
| 08/14/1984 | US4466034 Carriage assembly |
| 08/14/1984 | CA1172754A1 Disc recording apparatus including integral track zero and crash stop means |
| 08/08/1984 | EP0059727B1 Head position system for a disc data store |
| 08/07/1984 | US4464689 Random access read/write unit |
| 08/07/1984 | CA1172358A1 Emergency head retract system for magnetic disc drives |
| 08/07/1984 | CA1172357A1 Method and apparatus for recording transducer positioning information |
| 08/01/1984 | EP0114509A1 Record disc reproducing apparatus |
| 08/01/1984 | EP0114508A1 Record disc reproducing apparatus |
| 07/31/1984 | US4463388 Rotary recording medium capable of performing special reproduction |
| 07/25/1984 | EP0114082A2 Apparatus for recording and/or reading information by means of a radiation beam |
| 07/25/1984 | EP0113986A1 Methods of and apparatus for recording a digital information signal |
| 07/25/1984 | EP0113815A1 Servo system for a magnetic disk file |
| 07/24/1984 | US4462054 Disc drive electromagnetic actuator with enhanced flux density |
| 07/24/1984 | US4462053 Method for controlling a disc head |
| 07/24/1984 | CA1171524A1 Control system for transducer positioning motor |
| 07/24/1984 | CA1171362A1 Linear tracking arm drive apparatus |
| 07/17/1984 | US4460927 Optical reading device for reading an information carrier with motion effect facilities |
| 07/11/1984 | EP0113051A2 System for position detection on a rotating disk |
| 07/11/1984 | EP0113008A1 Magnetic actuator |
| 07/10/1984 | US4459692 Signal pickup cartridge |
| 07/10/1984 | US4458398 Manufacturing apparatus for adjusting the position of a magnetic head in a flexible disk drive |
| 07/04/1984 | EP0112595A1 Electrodynamic device for translating an objective |
| 07/04/1984 | EP0112330A1 Head lift mechanism |
| 07/03/1984 | US4458274 Manufacturing method and apparatus for adjusting the position of a magnetic head in a flexible disk drive |
| 06/27/1984 | EP0111665A1 Automatic reference adjustment for position error signal on disk file servo system |