Abstract: A magnetic head comprises cores made of a magnetic substance that forms a magnetic circuit via a gap when a magnetic flux is induced there. The magnetic head also comprises a plurality of coils that are wound around the cores and induce a magnetic flux in the cores when a electric current is supplied thereto. The magnetic head also comprises a slider made of a magnetic substance that has as its integral parts a sliding contact portion that is in sliding contact with a magnetic recording medium and a core contact portion that contacts the core and forms, together with the cores, a closed magnetic circuit.

Abstract: A thin magnetic head is formed by a magnetic substrate, an element portion, a protective plate, and the like. A plurality of external connection terminals are arranged on the surface of the magnetic substrate to extend from the element portion. A plurality of lead terminals are arranged in correspondence to respective ones of the external connection terminals. The lead terminals are held between a base film and a cover film or by a glass substrate, so that at least surfaces being opposed to the external connection terminals are exposed. Conductive layers are interposed between the opposed ones of the lead terminals and the external connection terminals respectively. The lead terminals are electrically connected with the external connection terminals by the conductive layer.

Abstract: A storage disk module includes a frame, and a disk drive unit having a storage disk. The disk drive unit is accommodated in the frame. A circuit unit controls the disk drive unit, and is accommodated in the frame. A power source supplies the disk drive unit and the circuit unit with energy. The power source is accommodated in the frame. The disk drive unit, the circuit unit and the power source are arranged side by side in the frame in a direction perpendicular to a direction in which the storage disk module is inserted into a locker. A back panel is formed in a back portion of the frame. The back panel electrically connects the disk drive unit, the circuit unit and the power source to each other.

Abstract: Disclosed is a disk drive for storing representations of data. The disk drive includes a housing or enclosure. At least one disk is rotatably attached to the housing. Also attached to the housing is an actuator. A transducing head is attached to one end of the actuator and is positioned to pass near the disk. Attached on the other end of the actuator is a coil which makes up a portion of a voice coil motor. Another portion of the voice coil motor is a magnet positioned near the coil. The housing includes at least one recess or opening which holds the magnet on the outside of the housing yet near the coil.

Abstract: A magnetic head having a pair of magnetic core assemblies sandwiching a spacer assembly in a direction of track width includes a laminate consisting of a magnetic material and a nonmagnetic material in a part of the spacer assembly, and the remaining part of the spacer assembly is made of nonmagnetic materials. The spacer assembly is fabricated by forming a plurality of grooves on a surface of a magnetic material block, filling a joint material in the grooves and join the magnetic material block with a nonmagnetic material block to form a composite block, and cutting the composite block to obtain a plurality of spacer assemblies. The spacer assembly together with other elements of the magnetic head is assembled to manufacture a magnetic head.

Abstract: An apparatus for storing data is disclosed, which has a storage medium support frame for supporting storage medium carrying members of similar configuration. The size of the storage medium support frame can be changed (i.e., adjusted) to accommodate an arbitrary number of storage medium carrying members. In one embodiment, the storage medium carrying member may be in the form of a rewritable optical disk or another type of optical storage platter. The storage medium support frame comprises a plurality of disk units which may be coupled to each other, each disk unit having a disk support structure for supporting at least one platter. The disk units are provided with mechanisms for detachably connecting, and thereby stacking, a variable number of disk units together to form the storage medium support frame. As the disk units are stacked, i.e.

Abstract: Disclosed is a disc case characterized in that it allows both loading of the disc as housed in the case main body to the disc drive section and loading of the disc as a simple to the disc drive section, that it is produced with the reduced number of parts and reduced number of assembly steps so as to achieve cost reduction and enjoys extended life and high reliability, and that the opening and closing handleability of the cover is highly facilitated; the disc case comprising a rectangular case main body, having a full-face opening for fitting a data recording disc therethrough, and another opening defined at the bottom through which the data recording surface of the disc can radially be exposed; a cover plate which can close the full-face opening of the case main body; a couple of first engagement pieces, provided on the rear surface of the cover plate; a couple of second engagement pieces, provided in the case main body which resiliently engage with the first engagement pieces to lock the cover plate as clos

Abstract: A magnetoresistive transducer design for cross-talk supression and increased Neel temperature is disclosed. The transducer is formed by fabricating on a suitable substrate an antiferromagnetic material layer above and below the permalloy layer. The additional antiferromagnetic layer between the substrate and the permalloy increases the exchange coupling biasing of the magnetoresistive transducer thereby providing increased cross-talk supression and greater longitudinal bias. The location of the additional antiferromagnetic layer beneath the permalloy also increases the Neel temperature of the transducer. A permanent magnetic material can also be substituted for the antiferromagnetic material with the result that the longitudinal bias is increased by coupling to the upper and lower surfaces of the permalloy layer thereby doubling the effect.

Abstract: A CD player is disclosed in which it is adapted such that a data signal of a greater amount than necessary is reproduced by rotating a compact disk at a speed higher than its normal rotating speed and the data signal is stored into a large-capacity memory before the signal is deinterleaved and the data stored in the large-capacity memory is read and output even while a pickup, when a track jump has occurred, is being returned to the position preceding where the track jump occurred, whereby the continuity of the output signal from the CD player is maintained.

Abstract: In order to produce a cassette, such as tape cassette, disc cassette or the like, the following steps are taken. First, fixed and movable dies are prepared which are unitable to define therewithin a shaped cavity. The movable die has at its inner surface a retaining ridge which includes a first portion immediately projected from the inner surface and a second portion immediately projected from the first portion. The second portion has side walls at least one of which has a laterally extending projection at the position remote from the first portion. Second, the fixed and movable dies are coupled to define the shaped cavity therewithin. Third, a plastic material is injected into the shaped cavity in such a manner that the retaining ridge is immersed in the injected plastic material. Fourth, the fixed and movable dies are uncoupled and a cured molded article of the plastic material thus produced is released from the movable die.

Abstract: A blocking device for insuring that the insertion movement of a cartridge is impeded immediately if the cartridge is not properly oriented when inserted by the user in loading apparatus for flat, rectangular cartridges with a casing having longer longitudinal edges than transverse edges parallel top and bottom faces, and transverse-edge grooves that are asymmetrical relative to the parallel faces. The apparatus has an entrance through which a cartridge when properly oriented is inserted front-edge first in a direction perpendicular thereto.

Abstract: A drive for the turntable of an analogue record player has an output shaft for rotating the turntable via an endless belt extending around the output shaft and the periphery of the turntable. A disc rotatably supported in line with and connected to the output shaft for rotation therewith has a diameter considerably exceeding the diameter of the output shaft. A motor rotates the disc with a speed considerably greater than that of the turntable.

Abstract: A disk player including a driving device for driving a disk loaded in a drive mechanism; a reading device for reading recorded data from the disk driven by the driving device; a reproduced signal decoding device for decoding an audio signal of the recorded data read by the reading device; a subcode information decoding device for decoding the subcode of the recorded data; a recordable time detecting device for computing the recordable time of the disk according to the subcode information decoded by the subcode information decoding device; and an indicating device for indicating the computed recordable time. Accordingly, the user can immediately recognize the recordable time of the disk loaded into the disk player or kept in the loaded condition.

Abstract: A magnetooptical recording/reproducing apparatus for recording and/or reproducing information from a magnetooptical disk seated in a disk cartridge by using an optical pickup and a magnetic head. A cartridge holding member pivots for loading a disk cartridge on a deck, and an ejecting member ejects the disk cartridge received in the cartridge holding member. Also, the apparatus has a connecting member for transporting the magnetic head together with the optical pickup and a slide member for raising or lowering a recordable disk cartridge by recognizing the recordability of the disk cartridge.

Abstract: A rotary head helical scan tape record and/or reproduce apparatus has an upper rotatable cylindrical drum tape guide section and a stationary lower cylindrical drum tape guide section that includes a narrow upper ridge which is displaced radially from the axis of the stationary cylindrical drum tape guide section in a direction towards the location where the rotary head ends the scan of the tape. Magnetic tape is transported in a helical path from the lower stationary drum guide section, over the radially displaced upper ridge to the upper rotatable drum guide section, which carries the record and/or reproduce heads that transfer signals to and from the tape.

Abstract: An rotary drum head for recording and/or reproducing a signal on slanted tracks formed on a magnetic tape. A chassis is provided with a rotary head drum unit having a lower stationary drum mounted on the chassis in an inclined position. A rotary drum is rotatably and coaxially mounted above the lower stationary drum. A transducer is mounted on a periphery of the rotary drum. A motor rotates the rotary drum. An upper stationary drum is coaxially mounted above the rotary drum wherein an upper portion of the upper stationary drum at the farther side from the chassis is cut so that total height of the rotary head drum unit is reduced.

Abstract: A magnetoresistive head has a substrate (1) and, on the substrate, a magnetoresistive film (40) for converting a magnetic signal into an electric signal by using magnetoresistance effects and a pair of electrodes (60) for causing a signal detection current to flow through the magnetoresistive film. A pair of first domain wall suppressing layers (30) are arranged at opposite end portions of the magnetoresistive film, respectively, to apply a longitudinal magnetic bias to the magnetoresistive film. A second domain wall suppressing layer (45) is also provided for applying a longitudinal magnetic bias, which is weaker compared with the longitudinal magnetic bias applied by the first domain wall suppressing layers, to the magnetoresistive film (40).

Abstract: In a magneto-resistive device having a magneto-resistive device and conductive leads connected to both end portions of the magneto-resistive device, the two end portions of the magneto-resistive device are altered into hard magnetic material portions by introducing a impurity element such as a material forming the conductive lead and the two end portions which are altered into the hard magnetic material portions are magnetized to have at least magnetic components parallel to the longitudinal direction of the magneto-resistive device.

Abstract: Disclosed is an optical disk handling system, called an autochanger, having two control systems to provide the six motions necessary to move optical disk cartridges from storage holding cells to an optical drive. The system uses shaft encoders on two motors of the two control systems, and current or voltage feedback from the motors, for all positioning, and for detecting the location of the mechanisms during, and at the end of, moves. An optical drive interface connects the electronics of the autochanger and the optical drive, and includes electrical signals to emulate an eject pushbutton on the optical drive and an indicator lamp on the optical drive. The autochanger monitors the on and off state of the lamp signal as well as the duration of the on and off cycles to determine which operation is being performed by the optical drive. The autochanger uses the lamp signal and the eject signal to control all operations with the optical drive.

Abstract: A magneto-optical disc recording/reproducing apparatus in which a magneto-optical disc, a disc rotating and driving unit, an optical head device, an external magnetic field generating unit and a controlling device are contained as one in an outer casing.