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7359625 Recording medium with content stream data recorded thereon, recording apparatus, and reproducing apparatus therefor  
A recording medium having content stream data recorded thereon and a recording and reproducing apparatus provided therefor. On the recording medium, content stream data is recorded as a stream...
7006758 Data recording medium, and data reproducing apparatus  
An information recording medium on which are recorded substantial data and reproduce control information for reproducing the substantial data, wherein the reproduce control information includes...
6754028 Control integrated circuit for floppy disk drive  
A control IC is mounted on a circuit board and is used for driving both a one-inch stepper motor and a half-inch stepper motor. The control IC includes at least a number of pads required for...
6650961 Disk cartridge data storage apparatus  
Methods and apparatus for storing data which employ a hard disk memory media which is operably supported within a cartridge shell to form a disk cartridge. The disk cartridge can be employed in the...
RE37455 Axially compact direct drive for storage disk hub  
An axial compact direct drive for a storage disk comprises a stator, a rotor carrying a hub for receiving storage disks and a bearing arrangement. The bearing arrangement is disposed at a radially...
6315452 Zero static-friction actuator pivot bearing for production disk drives  
A hydrostatic bearing assembly, with an integral rotating-shaft hydrodynamic pump, adapted for use as a stiff zero static-friction actuator pivot bearing for the head-stack assembly of a disk drive...
6266677 System and method for ensuring the integrity of stored data  
A system and method for determining when data stored in a data storage device is becoming unreliable. A list of trigger events is maintained, either on the media, or on a host processor, and the...
6204995 Magnetic disc apparatus  
The present invention provides a magnetic disc apparatus comprising a vertical two-layered magnetic recording (MR) medium and a mono-pole/MR composite head or ID/MR composite head, wherein the...
6103404 Laser textured magnetic disk comprising NiNb  
A method for manufacturing a magnetic disk comprises the steps of depositing NiP (20) on a substrate (22); depositing NiNb (24) on the NiP; and laser texturing the NiNb. "Sombrero" shaped texture...
5985403 Magnetic recording medium and magnetic recording reproducer  
A magnetic recording medium comprising a non-magnetic substrate and a magnetic layer and a protective layer which are formed on the non-magnetic substrate in that order, wherein a substance(s) as a...
5748600 Rotational optical head for optical recording medium  
A pickup apparatus of an optical card has an improved data transfer efficiency and miniaturization and thin shape of the apparatus can be realized. The length of a line segment connecting a center...
5695864 Electronic device using magnetic components  
In the present invention, electrons flow through a free or excitable magnet, or reflect from it, to make its magnetization respond. To accomplish this, the spin vectors of the flowing electrons are...
5627946 Hard disk format using frames of sectors to optimize location of servo bursts  
A hard disk format is disclosed which sequentially arranges a number of different sector types, each having a different format, into frames which are repeated around the tracks of a magnetic disk....
5612834 Servo burst controller for a magnetic disk  
A novel disk controller and method performed by a disk controller is disclosed which provides a highly efficient means of interrupting the reading or writing of a field in a sector on a magnetic...
5592348 Method and structure for locating and skipping over servo bursts on a magnetic disk  
A novel disk controller and method performed by a disk controller is disclosed which provides a highly efficient means of interrupting the reading or writing of a field in a sector on a magnetic...
5452161 Flexible vane latch apparatus for a disk drive  
An actuator assembly latching apparatus for a disk drive is realized with an elongated flexible vane disposed in proximity to a rotating disk. The rotating disk produces an airflow at different...
5331483 Axially compact direct drive for storage disk hub  
An axial compact direct drive for a storage disk comprises a stator, a rotor carrying a hub for receiving storage disks and a bearing arrangement. The bearing arrangement is disposed at a radially...
5319511 Aerodynamic actuator latch with magnetic return spring for hard disk drive  
An aerodynamic actuator latch for a disk file uses a fringe field from permanent magnets of the actuator assembly to generate a reverse bias torque, in lieu of a separate return spring. The...
5296986 Rotary intertial latch for disk drive actuator to protect against rotational shock force  
A rotary inertial latch is disclosed for maintaining the actuator of a disk drive in its proper position when the drive is not in operation.
5270879 Magneto-optical disk inspecting method and apparatus  
This invention relates to a magneto-optical disk inspecting apparatus in which n pairs of a write head and a read head, and the area of the magneto-optical disk to be inspected is divided in n...
5245490 Disc recording and/or reproducing apparatus including a head positioning mechanism having a spiral cam for positioning a head at a reference position  
A magnetic disc recording and/or reproducing apparatus in which a magnetic disc cassette containing a magnetic disc provided with a center hub is loaded so that the center hub engages with a rotary...
5122914 Disk drive system with transportable carrier and mounting assembly  
A computer system providing for quick removal and quick and simple installation of a disk drive unit into the system. A latching and positioning arrangement provides releasable support for the disk...
5060106 Disk cartridge including door opening mechanism and improved hub assembly  
A disk cartridge having a housing in which a disk is rotatably mounted via a hub assembly. The housing includes two cover plates, each of which has a door aperture that is selectively covered by a...
5051677 Apparatus for processing rotary member  
An apparatus for processing a rotary member, comprising: a rotational drive for driving the rotary member so as to rotate the rotary member about an axis of the rotary member; an encoder for...
5036416 Aerodynamically releasable lock for a disk file actuator assembly  
An actuator lock for a disk drive in which fixed air vanes projecting between a adjacent disks divert air flow, generated by disk rotation, into a narrowing passage adjacent the disks to impinge...
5010426 Installation mechanism for removable computer drive module  
An installation mechanism for a removable computer drive module with a handle operated automatically engaging dual rack and pinion device. The pinions are carried by the handle which is pivotally...
5001700 Disk clamp and centering apparatus for a beam addressable disk drive system  
Apparatus for centering and clamping a disk on a spindle-drive is disclosed. A bistable magnetic clamp normally held in an axially offset position from the plane of the disk is preferentially drawn...
4959740 Disc recording and/or reproducing apparatus including means for minimizing the effects of temperature changes  
A recording and/or reproducing apparatus for recording on and/or reproducing from a recording medium. The apparatus includes a head supported by a head mount movable in the radial direction of the...
4912580 Information storage system with readily removable high capacity disk drive unit  
A computer system providing for quick removal and quick and simple installation of a disk drive unit into the system. A latching and positioning arrangement provides releasable support for the disk...
4890175 Recording medium mounting means and recording or reproducing apparatus incorporating same  
A recording or reproducing apparatus has a mounting member arranged at a recording medium receiving member. The mounting member press fits the recording medium onto the drive shaft of the apparatus...
4833556 Low drag stabilizer device for stabilizing the interface between a transducer and a moving medium  
A ceramic stabilizer is shown for minimizing the drag experienced in a magnetic interface between the stabilizer and a rapidly moving pliable magnetic disk. The stabilizer includes a stabilizing...
4823337 Device for recording information on or reading information from an information disc  
Clamping device (21) for clamping an optical disc on a turntable comprises a disc-pressure means (23), a support (5) for the disc-pressure means, which support is movable between an operating...
4819100 Floating head slider device for magnetic disk apparatus  
In a magnetic disk apparatus adapted such that a magnetic disk made of a hard disk type carrier with a magnetic recording region formed on the surface thereof is rotated in a high speed therein,...
4794587 Disk drive lock  
A virgin disk is exteriorly secured across an open wall of a casing. When the disk is inserted in the slot of a computer and locked inside by a lever, the casing prevents access to the lever and to...
4792707 Disk tracking device  
A tracking device has a linear motor having a driving coil, a speed sensor having a detection coil, and a moving member reciprocated in a predetermined range together with the driving coil and the...
4788671 Information recording and reproducing apparatus for effecting simultaneous recording and reproduction but at different rates  
There is disclosed an information recording and reproducing apparatus which is provided with a disk-shaped recording medium having a recording face allowing information recording and reproduction...
4764831 Apparatus and method for retaining a head arm of a disk drive assembly  
A disk drive which includes an automatic parking brake for retaining the driver arm in a predetermined position when power is removed from the disk drive. The brake is mounted externally to the...
4754397 Fault tolerant modular subsystems for computers  
A fault tolerant computing facility is disclosed. The facility includes a housing array for containing a plurality of hardware element modules such as disk drives, a plurality of modularized power...
4740851 Disk drive with spicule member  
A device for aligning a disk contained in a cartridge with a motor and transducer of a disk drive is disclosed. A record disk contained within a rigid apertured cartridge is inserted into a disk...
4739422 Magnetic recording apparatus  
A magnetic recording apparatus including a base, a drive shaft mounted on the base for rotating a magnetic disc, a movable member adapted to reciprocate in a radial direction of the magnetic disc...
4725907 Carriage latch for a disc drive incorporating inertial lock-up  
A dynamic latching mechanism for a disc drive includes a latch rotatable about a pivot which captures an extension on the carriage. The latch is mounted in a frame directly attached to the disc...
4724962 Disk jacket  
A disc jacket, especially for a photo-magnetic disk which records, reproduces and erases information, has a single opening configured to receive both a recording head and a central spindle. The...
4710836 Magnetic head  
A magnetic head having an upper head and a lower head disposed opposite to each other and capable of simultaneously reading information from or writing information in both sides of a magnetic disc...
4710831 Loading and unloading system for flexible disc drive apparatus  
A recording and/or reproducing apparatus using a disc-shaped flexible record-bearing medium such as a disc-shaped flexible magnetic sheet, which includes a loading device for placing the medium at...
4692829 Magnetically biased aerodynamically released integral safety latch for rigid disk drive  
An improved safety latch is provided for a data storage device, for locking the transducer carriage to restrain the data transducer to a predetermined landing zone during non-rotation of data...
4670802 System for controlling loading and ejection of recording medium on a disc unit  
A disc unit for recording or reproducing information on or from a recording/reproducing disc loaded therein, in which the disc, which is inserted into the disc unit through an insertion opening...
4661868 Cassette loading mechanism with malfunction preventing means  
A cassette handling apparatus having a main body part; a cassette receiving part arranged to be able to assume first and second states relative to the main body part; a moving member arranged to be...
4647997 Aerodynamic latch for disk file actuator  
An aerodynamically powered release latch mechanism for a fixed disk data file is disclosed. An airflow generator disk is commonly journalled with a single data storage disk for generating airflow...
4641209 Disc type information storage and retrieval system  
A disc type of information storage and retrieval system is disclosed herein. This system utilizes a cartridge type of information storage disc arrangement including a rotating disc and its own...
4633350 Information storage system with readily removable high capacity disk drive unit  
A computer system providing for quick removal and quick and simple installation of a disk drive unit into the system. A latching and positioning arrangement provides releasable support for the disk...
Matches 1 - 50 out of 259 1 2 3 4 5 6 >