| Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963) |
|---|
| 06/29/1993 | US5223997 Monolithic floating magnetic head without adverse adhesive effects |
| 06/29/1993 | US5223993 Multiple actuator disk drive |
| 06/23/1993 | EP0547630A2 Adaptive control system for a disk drive actuator |
| 06/23/1993 | EP0547218A1 Audio record carrier and players for playing said record carrier. |
| 06/22/1993 | US5222005 Loading unit for case which houses recording disk |
| 06/22/1993 | CA1319428C Ceramic support arm for movably positioning transducers |
| 06/16/1993 | EP0546621A2 Device for scanning a disc-shaped record carrier |
| 06/16/1993 | EP0546543A2 Disc driving apparatus |
| 06/16/1993 | EP0545945A1 Process for shortening the access time (track control circuit) |
| 06/15/1993 | US5220547 Method and device for controlling optical head moving speed |
| 06/15/1993 | US5220546 Operating optical disk drives including calibrating a tracking error signal |
| 06/15/1993 | US5220545 Disk controller including format control unit instructing directly jump back operation |
| 06/15/1993 | US5220465 Circuit and method for reproducing a luminance signal compatibly between different video systems |
| 06/15/1993 | US5220408 Method and apparatus for calibration of optical flying-height testers |
| 06/09/1993 | EP0545781A1 Spring for a flying slider, machine and method for making said spring |
| 06/09/1993 | EP0545310A2 Loading/unloading mechanism for a magnetic head |
| 06/08/1993 | US5218585 Phase shifting feedback control in an optical disk drive |
| 06/08/1993 | US5218453 Optical disc access control apparatus |
| 06/08/1993 | US5218450 Apparatus for reproducing information from a recording medium in accordance with a search command |
| 06/08/1993 | CA1318975C Automatic servo gain calibration system for a disk drive |
| 06/02/1993 | EP0544302A2 A magnetic head holding apparatus for recording a magneto-optical disc |
| 06/01/1993 | US5216662 Latch mechanism for disk drives |
| 06/01/1993 | US5216652 Light spot position detector |
| 06/01/1993 | US5216651 Pickup-drive stabilizing apparatus for an optical disc player |
| 06/01/1993 | US5216647 Target track position retrieval device |
| 05/27/1993 | WO1993010531A1 Small size constant torque voice coil motor |
| 05/26/1993 | EP0543690A1 Slide for magnetic recording |
| 05/26/1993 | EP0543654A2 Positioning control system |
| 05/26/1993 | EP0543295A2 Optical disk player |
| 05/25/1993 | US5214678 Digital transmission system using subband coding of a digital signal |
| 05/25/1993 | US5214552 Actuator for moving recording head and method for producing the same |
| 05/25/1993 | US5214544 Apparatus for generating a track zero signal in a floppy disc driver without an optical track zero sensor |
| 05/25/1993 | CA1318396C Tracking servo control for disc drive |
| 05/23/1993 | WO1993010535A1 Disc device |
| 05/23/1993 | CA2100157A1 Disk drive |
| 05/19/1993 | EP0542563A2 Magnetic disc apparatus |
| 05/19/1993 | DE4137938A1 Scanner for signals on rotary disc concentric tracks - has scanning head guide along logarithmic spiral, starting in rotation centre. |
| 05/18/1993 | US5212680 Mass storage device employing array of transducers "cocked" in relation to reciprocal movement axis |
| 05/18/1993 | US5212675 Apparatus for detecting position of light spot |
| 05/18/1993 | US5212608 Head slider for magnetic disk drive, having side rails with gradually increasing width forming a shallow recess |
| 05/18/1993 | US5212604 Method and apparatus for processing positioning signals in a record |
| 05/18/1993 | US5212417 Stepping motor for driving head carriage and disc drive unit comprising such motor |
| 05/18/1993 | CA1318022C Disk player |
| 05/13/1993 | WO1993009533A1 Slider air bearing surface with angled rail configuration |
| 05/12/1993 | EP0541209A2 Optical head servo device |
| 05/11/1993 | US5210739 Carriage lock apparatus |
| 05/11/1993 | US5210714 Distance-controlled tunneling transducer and direct access storage unit employing the transducer |
| 05/11/1993 | US5210662 Tracking control apparatus for magnetic disk |
| 05/11/1993 | US5210660 Sectored servo independent of data architecture |
| 05/05/1993 | EP0540385A1 Recorded information read-out method and system |
| 05/05/1993 | EP0540282A2 Size-independent, rigid-disk, magnetic digital-information storage system with localized read/write enhancements |
| 05/05/1993 | EP0540164A1 Disc recording and reproducing apparatus and disc |
| 05/05/1993 | EP0540114A1 Method and apparatus for reducing track switch latency in a disk drive |
| 05/05/1993 | EP0539959A2 Digital servo apparatus for optical disc player |
| 05/05/1993 | CN1020514C Linear actuator for a disk file |
| 05/04/1993 | US5208793 Optical disk apparatus including a braking device for frictionally suppressing movement of an optical head carriage |
| 05/04/1993 | US5208711 Data recording/reproducing apparatus having recording head position detection and control |
| 05/04/1993 | US5208710 Method for high speed positional control of a transducer for rotating disk data storage apparatus |
| 05/04/1993 | US5208523 Stepper motor with vernier control mode |
| 05/04/1993 | US5207515 Ball bearing with spherical segment inner ring and divided outer ring |
| 05/04/1993 | CA1317373C Servo pattern writing method for a disk storage device |
| 05/04/1993 | CA1317372C Disk file digital servo control system with optimized sampling rate |
| 05/02/1993 | CA2071412A1 Method and apparatus for reducing track switch latency in a disk drive |
| 04/29/1993 | WO1993008563A1 Sleeveless rotatable beryllium/aluminum actuator arm for a magnetic disk drive |
| 04/29/1993 | WO1993008561A1 Hybrid sector servo system |
| 04/29/1993 | WO1993008445A1 Method and apparatus to calibrate intensity and determine fringe order for interferometric measurement of small spacings |
| 04/28/1993 | EP0538835A2 Recording and reproducing apparatus |
| 04/28/1993 | EP0538790A2 Tooling for assembly of compact disk drive |
| 04/27/1993 | US5206570 Actuator servo compensation method |
| 04/27/1993 | US5206566 Access method of actuator and control apparatus therefor |
| 04/21/1993 | EP0538025A2 Disk drive |
| 04/21/1993 | EP0537990A1 Actuator device with means for positioning a movable actuator relative to a fixed member |
| 04/21/1993 | EP0537940A1 Actuator device with movable and lockable actuator |
| 04/21/1993 | EP0537916A2 A circuit for controlling an actuator arm in a disk drive system |
| 04/21/1993 | EP0537707A2 Assembly of compact disk drive |
| 04/20/1993 | US5204932 Servo circuit for magnetic disk apparatus |
| 04/15/1993 | DE4220192A1 Optical recording medium e.g. optical disc - has at least one pit for track servo control for several tracks in combination track |
| 04/14/1993 | EP0536891A1 Disk drive apparatus |
| 04/13/1993 | US5202865 Track access control apparatus for optical disk apparatus |
| 04/13/1993 | US5202864 Slip-off preventing tracking control apparatus |
| 04/13/1993 | US5202803 Disk file with liquid film head-disk interface |
| 04/13/1993 | US5202595 Yoke member for voice coil motor |
| 04/07/1993 | EP0535991A1 Appartus and method of detecting head position error in magnetic disk drive |
| 04/07/1993 | EP0535646A1 Pickup feeding apparatus for a double-sided reproducing disc player |
| 04/06/1993 | US5200869 Flying type thin film magnetic head having a transducing element |
| 04/06/1993 | US5200867 Transducer carrier for disk file with liquid film head-disk interface |
| 04/06/1993 | US5199799 Ball bearing and head positioning apparatus |
| 04/06/1993 | CA1315879C System and method for accessing tracks for optical disc apparatus |
| 04/01/1993 | WO1993006594A1 Microminiature hard disk drive |
| 04/01/1993 | WO1993006593A1 An embedded servo system with reduced agc overhead |
| 04/01/1993 | DE4231561A1 Optical disc system head position control system - has digital controller with sample=and=hold stage and with phase compensation to prevent resonant peak in response characteristic. |
| 03/31/1993 | EP0534490A1 Phase lock loop for sector servo system |
| 03/31/1993 | EP0534071A1 Processing of magnetic head flexures with slider elements |
| 03/31/1993 | CN1070504A Andio record carrier and players for playing said record carrier |
| 03/31/1993 | CN1070503A Slider and disk storage apparatus with slider |
| 03/30/1993 | US5199016 Method and apparatus for processing data |
| 03/30/1993 | US5199015 Optical recording/reproducing device having means for adjusting servo loop gain and phase characteristics |
| 03/30/1993 | US5198947 Apparatus for adjusting a tape head for a magnetic tape |
| 03/30/1993 | US5198946 Head drive mechanism using non-axial lead screw imparted motion |
| 03/30/1993 | US5198945 Magnetic head suspension |