| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
|---|
| 09/03/1986 | EP0192938A2 Floppy disk R/W head assembly |
| 09/03/1986 | EP0192896A2 Apparatus for recording and reading binary information on a magnetic disc |
| 09/02/1986 | US4609957 Magnetic card reader-encoder apparatus |
| 09/02/1986 | US4609954 Tracking servo for a disk player with a dc motor |
| 09/02/1986 | US4609953 Disk unit |
| 09/02/1986 | US4609948 Apparatus to control time base fluctuation in a signal from a device for reproducing recorded information from a recording disc |
| 09/02/1986 | CA1210859A1 Magnetic disc memory apparatus incorporating temperature compensation |
| 09/02/1986 | CA1210858A1 Method and apparatus for recording and reproducing an information signal with a larger tape wrapping angle |
| 08/26/1986 | US4608676 Apparatus for optically reproducing an information signal from a record disk |
| 08/26/1986 | US4608618 Digital alignment diagnostic disk |
| 08/26/1986 | US4608613 Tracking apparatus for rotary magnetic recording medium |
| 08/26/1986 | US4607956 Position detecting apparatus |
| 08/26/1986 | US4607913 Electrodynamic device for translating a lens system |
| 08/26/1986 | CA1210500A1 Head arm mounting device for one or more scanning heads in recording/playback apparatus for disk records |
| 08/22/1986 | EP0124580A4 Fine and coarse servo system for access and tracking on an optical disk. |
| 08/20/1986 | EP0191247A2 Apparatus for recording and reading information on a magnetic disk |
| 08/19/1986 | US4607355 For use in an optical disk file device |
| 08/19/1986 | US4606638 Distance measuring interferometer and method of use |
| 08/19/1986 | CA1210147A1 Tracking controlling apparatus |
| 08/05/1986 | US4604666 Data transfer apparatus for use with a magnetic disk cartridge |
| 07/29/1986 | US4603411 Periodical signal detection circuit within a variable window length |
| 07/29/1986 | US4603364 Apparatus for recording on opposite faces of flexible magnetic disk |
| 07/29/1986 | US4603363 Stop mechanism using an elastomeric element |
| 07/23/1986 | EP0188088A2 Servo controlling circuit |
| 07/23/1986 | EP0057178B1 A method for recording track marking information on flexible magnetical information carrier discs and apparatus for fine adjustment of the position of a reading head |
| 07/22/1986 | US4602361 Apparatus for playing back rotating recording mediums |
| 07/22/1986 | US4602305 Magnetic disc memory apparatus incorporating temperature compensation |
| 07/22/1986 | US4602304 Servo pattern for dedicated surface track following servo systems |
| 07/22/1986 | US4602175 For positioning magnetic heads in a disk file |
| 07/15/1986 | CA1207898A1 Linear actuator for a memory storage apparatus |
| 07/09/1986 | EP0186662A1 Self-timed runout correction pattern. |
| 07/08/1986 | US4599659 Floppy disk drive apparatus |
| 07/08/1986 | CA1207440A1 Disc player with search noise suppression |
| 07/01/1986 | US4598394 Optical reproducing apparatus with fast access mode operation |
| 07/01/1986 | US4598328 Mechanical damper for disk drives having band drive actuators |
| 07/01/1986 | US4598327 Servo control system using servo pattern time of flight for read/write head positioning in a magnetic recording system |
| 06/25/1986 | EP0185549A1 Tracking control system for optical record disc information reproducing apparatus |
| 06/17/1986 | US4595963 Flexible magnetic disc driving apparatus |
| 06/11/1986 | EP0184500A1 Method for displacing a mobile system moved by an electric motor along a given trajectory, and apparatus for carrying out said method |
| 06/11/1986 | EP0184387A2 A method of controlling the operation of a disk file and a disk file |
| 06/11/1986 | EP0184195A2 Optical disc recording apparatus |
| 06/11/1986 | EP0183831A1 Technique for measuring very small spacings |
| 06/11/1986 | EP0183699A1 Servo pattern |
| 06/10/1986 | US4594702 Fluid bearing for axially movable head |
| 06/10/1986 | US4594622 Track following servo system for a disk file |
| 06/10/1986 | US4594620 Disk storage file with a four phase, single phase drive stepping motor |
| 06/10/1986 | US4594617 Method and apparatus for cleaning a recording and/or reproducing head |
| 06/10/1986 | US4593576 For reducing rotary motion |
| 06/10/1986 | CA1205909A1 Cleaning disc |
| 06/04/1986 | EP0183554A2 Video/compact disk player |
| 06/04/1986 | EP0183033A2 Combined magnetic channel signal sensor and servo control track following system and method |
| 06/03/1986 | US4593368 Technique for measuring very small spacings |
| 06/03/1986 | US4593329 Magnetic data storage apparatus having a magnetic disk normally in contact with a transducer head, and method of operation |
| 05/28/1986 | EP0182458A2 Method and apparatus for time axis control |
| 05/28/1986 | EP0182025A1 Device for closely contacting at least one electromagnetic transducer head |
| 05/27/1986 | US4592036 Disc player with search noise suppression |
| 05/27/1986 | US4592035 Information signal track search system in a rotary recording medium reproducing apparatus |
| 05/27/1986 | US4591937 Head mounting arrangement in magnetic card reader |
| 05/27/1986 | US4591933 Disk drive head positioner with optimized seek operation |
| 05/27/1986 | CA1205192A1 Disc player with program selection control |
| 05/27/1986 | CA1205189A1 Method and apparatus for disk drive alignment |
| 05/21/1986 | EP0181436A1 Method and apparatus for information retrieval from an optically readable storage medium |
| 05/20/1986 | US4590529 Carriage device for moving and positioning magnetic head |
| 05/20/1986 | US4590527 Positioning servomechanisms |
| 05/20/1986 | US4590523 Control of auto-tracking in tracking-error correcting system of video recording/reproducing apparatus |
| 05/20/1986 | CA1204858A1 Apparatus for optically reading and/or recording information |
| 05/14/1986 | EP0181020A1 Apparatus for reproducing information from a record carrier |
| 05/14/1986 | EP0180658A1 Device for positioning very small mass objects |
| 05/13/1986 | US4589037 Servo control system using a varying frequency servo pattern for read/write head positioning in a magnetic recording disk file |
| 05/13/1986 | US4589036 Apparatus and method for instrumented radial translation of a read/write transducer at start-up of a rotating disk file |
| 05/13/1986 | US4587714 Manufacture of motor with split back magnet array |
| 05/13/1986 | CA1204389A1 Record player with automatic music search function |
| 05/10/1986 | CN85108798A Head positioning control system in magnetic disk device of index servo system |
| 05/10/1986 | CN85108204A Magnetic disc apparatus |
| 05/10/1986 | CN85106362A Tracking control apparatus |
| 05/06/1986 | US4587587 Dual transducer assembly with linear adjustment |
| 05/06/1986 | US4587580 Video signal reproducing apparatus |
| 05/06/1986 | US4587579 System for position detection on a rotating disk |
| 05/06/1986 | US4587570 In a video disc system |
| 04/30/1986 | EP0179299A2 Alignment disk and method for producing it |
| 04/29/1986 | US4586100 Cleaning disc |
| 04/29/1986 | US4586094 Method and apparatus for pre-recording tracking information on magnetic media |
| 04/24/1986 | WO1986002480A1 Magnetic head control system for external auxiliary storage devices |
| 04/15/1986 | US4583212 Record/playback head positioning device for optical disc apparatus |
| 04/15/1986 | US4583142 Slide lock mechanism for disk drives |
| 04/15/1986 | US4583135 Tracking device using multiple piezoelectric elements for track centering |
| 04/15/1986 | US4583130 AST for a two track VTR |
| 04/09/1986 | EP0177008A1 Drive for a rotating head drum |
| 04/08/1986 | US4581664 Disk accessing circuitry |
| 04/08/1986 | US4581662 Position control apparatus for controlling positions of rotary heads with respect to a recording medium |
| 04/08/1986 | US4581523 Apparatus for sensing a magnetic stripe on a recording media |
| 04/08/1986 | CA1203020A1 Audio system having a time base error correction arrangement |
| 04/02/1986 | EP0176449A1 Reader-analyser of tachographic discs |
| 04/02/1986 | EP0176298A2 Tape cassette loading and ejecting mechanism |
| 04/02/1986 | EP0176185A1 Optical disc player |
| 04/02/1986 | EP0175839A1 Data transducer restraint |
| 04/01/1986 | US4580255 Servo circuit for a signal reproducing apparatus |
| 04/01/1986 | US4580253 Direct access apparatus and method for video disc player |
| 04/01/1986 | CA1202720A1 Apparatus for reproducing designated information from a recorded disc |
| 03/25/1986 | US4578726 Head arm mounting device for one or more scanning heads in recording playback apparatus for disk records |