Abstract: A phonograph player includes a body with a motor configured to drive a drive wheel and also having a head-shell. The head-shell rotates relative to the body and holds a needle cartridge. The head-shell is also configured to activate a sensor governing motor speed. The sensor is calibrated for rotation of the head-shell to alter motor speed, and such that rotating the head-shell results in the body portion maintaining a constant RPM relative to the phonograph. The sensor may be a light sensor, and the apparatus may include a head-shell clip for holding the head-shell. Preferably, the head-shell holds the needle cartridge in a trailing configuration, and a housing at least partially cover the body.

Abstract: A lower inertial compact disk driving device is disclosed. The disk and laser head are static and optical unit device are used as a medium of the laser optical path. Furthermore, the focusing is realized. An optical unit device is used as a medium of the laser beam and a displacing device is used to change the position of the optical unit device. The focusing device has two rigid sliding tracks, one focus coil, and two permanent magnets. The rigid sliding tracks are used as a linkage. The focusing error from the laser beam passing through the optical unit device is converted into a focusing driving voltage which is applied to the focus coil so that a magnetic field is generated. This field is interacted with permanent magnets so that the focus coil moves up and down. Thereby, the rigid sliding tracks move up and down to drive the optical unit device to move.

Abstract: A lower inertial compact disk driving device is disclosed. The disk and laser head are static and optical unit device are used as a medium of the laser optical path. Furthermore, a rough tracing unit device is used to change the optical path projected by optical unit device on the compact disk, a precise tracing unit device is used to control the optical spot to emit to the desired compact disk track precisely; the precise tracing unit device includes two fixed shelves, two permanent magnets, a tracing movable block and a balance movable block, the tracing movable block and balance movable block are wound around focus coils, respectively, and are hung between two fixed shelves by elastic wire, the central thereof is installed with the steel wire whose end connects to the optical unit device. The focusing error from the laser beam passing through the optical unit device is converted into a focusing driving voltage which is applied to the focus coil so that a magnetic field is generated.

Abstract: A lower inertial compact disc drive includes a rotary needle, a rotary driving device and a straight movement device. The rotary needle is installed below a read and written surface of the disc, and a center of the rotary needle is installed with a fixed reflector. The selected positions at two sides thereof are installed with a movable reflector and a balance block; and a straight movement device for controlling the reflector and the balance block to move oppositely along a straight path on the rotary needle so as to control the alternation of the reading optic path. The rotary driving device has a small inertia, and thus a small power motor may serve the object. Similarly, the movable reflector, convex lens, and balance block are light and a small power servomotor can be used. Consequently, the power is saved greatly.

Abstract: In a data media storage library for storing and accessing storage media, the storage media being contained in cartridges, the data media storage library having a library housing, an access opening in the library housing for inserting cartridges, a storage array within the library housing including a number of storage locations, a plurality of media storage elements adapted to hold the storage media, a plurality of data transfer elements adapted to read and write information on the storage media, and a media transport element within the library housing adapted to move the storage media between the media storage element and the data transfer element, an import/export element which rotates the cartridge 180 degrees after moving the cartridge from the access opening to the media transport element, including: a cartridge holder adapted to receive the media cartridge from the access opening; a lead screw mounted in a first direction between a first point and a second point and rotating about a first axis parallel t

Abstract: An imaging system including a one-piece aluminum internal drum casting having reduced weight and increased stiffness. The internal drum is mounted to the frame structure of the imaging system using a plurality of mounts positioned in a plane substantially along the center of gravity of the internal drum. The mounts reduce the amount of sway of the internal drum within the frame structure.

Abstract: A high-recording-density magnetic disk drive is provided which minimizes changes in the distance between a magnetic disk and a magnetic head and is reduced in size and weight. The magnetic head and a support spring which supports the magnetic head are rotated over the magnetic disk which is stationary, and a base which supports the support spring is rotated by a rotary actuator for tracking on the magnetic disk.

Abstract: The present invention proposes a memory device comprising a fixed disc on the surface of which data may be stored, and rotating transducers or heads which may be positioned to access any location on the disc. The rotating heads are mounted on transducer arms which are designed in such a manner that the transducer seeks outward as it is rotated. That is, similar to a flywheel governor in a steam engine, centrifugal force would impart a radial force on the arm which is movable in a low friction system along with the transducer, the radial force causing the transducer to move outward together with the radial arm with increasing rotational speed of the spindle motor.

Abstract: A plurality of reflective diffusing holographic memory elements (16) is positioned on a memory plate (14). An array (24) of detectors (22) faces at least one of the memory elements. A laser (26) illuminates the selected memory element and the data stored therein is reflected onto the array for reading. A new memory element may be illuminated or may be brought into interrogation position.

Abstract: A hand-held transducing device for magnetically recording upon and playing from stationary records of a type adapted to be carried on back of a photograph or the like employs a rotating head for transducing information with respect to the record and means apart from the record for guiding the transducer to travel in a record trace while progressively varying the pitch of the head with respect to the track so as to vary the track density across the surface of the record, thereby extending the playing time of a record.

Abstract: As an effective means for carrying a plurality of record discs for selective reproduction, comprising an index carrier which is formed mainly as an index proper of flexible or rigid lengthy plate or as a series of plates connected with hinges, the periphery of the index proper having notches acting as indexing points for fixing and indexing the desired record disc and the side periphery or peripheries acting to restrain and guide the index carrier in a specific and regular direction. A simplified sound reproducing device for using aforesaid index carrier is constructed, in addition to ordinary means such as a tone arm, a turn table, a record disc, a sound transmitting member, starting and terminating means and the like, to have an index carrier magazine composed of a pair of magazines each disposed at each transverse side of the casing and having several means such as a spool, a knob or the like, for feeding the index carrier to the position where it can engage the reproducing stylus of the tone arm.

Abstract: In a sound reproducing apparatus for non-rotating plate-shaped or sheet-like sound carriers a pickup comprising a tone arm and a pickup system, is supported to swivel in horizontal and vertical directions on a rotating vertical-axis tone arm table operable by a battery backed driving motor. In order to enable predetermined portions of the spiral-shaped sound groove of the sound carrier to be approached, an abutment cam is provided which is capable of being swivelled into the area of movement of the pickup and engaged therewith. Through a setting knob, adjustable from an outer surface of the housing of said sound reproducing apparatus, said abutment cam can be moved into different radial positions, with respect to the tone arm table axis.

Abstract: A simplified sound reproducing device in which the stylus force of a reproducing stylus is imparted by a stylus pressure spring, the weight of the turn table being independently supported so that only the weight of the stylus and related tone arm are impinged upon the record to be reproduced. The stylus force imparted by the stylus pressure spring permits the stylus to remain in contact with the record disc following its undulations and reproducing high quality sounds.

Abstract: A stopper projects radially outward from the periphery of a rotary turn table and a plurality of selection poles are disposed such that any one of the selection poles, when depressed, projects into the locus of rotation of the stopper. A spring fabricated to have energizing pieces, the same in number as the number of selection poles, is positioned within a casing so that two mating parts can engage with each other. Each energizing piece is made electrically conductive and the spring also urges each selection pole toward the outside of the casing. A metal guide plate holds the selection poles 16 which are disposed along the periphery of the turn table within the casing and further guides the selected selection pole into the locus of rotation of the stopper. The selected selection pole will urge corresponding spring into engagement with the guide plate.

Abstract: A hand-held transducing device for magnetically recording upon and playing from stationary records of a type adapted to be carried on back of a photograph or the like employs a rotating head for transducing information with respect to the record and means apart from the record for guiding the transducer to travel in a record trace while progressively varying the pitch of the head with respect to the track so as to vary the track density across the surface of the record, thereby extending the playing time of a record.

Abstract: A children's record player which can be in the shape of a toy vehicle designed to be placed on top of a gramophone record and drive around and over that record. The record player has a base with a central downward pin engaging the center of the record and a pair of wheels, one of which is driven to cause the device to sweep around the record. A playing arm is provided having at its trailing outer end a pick-up engaging the sound groove in the record. The whole thing is mounted on a base and the pick-up extends through an opening in the base when in a playing position but is raised forwardly so as to be totally within the base and so protected from damage when the record player is controlled by a pivoted lever whose pivoting in turn automatically lifts the pick-up wholly within the base during non-operation.

Abstract: A simplified record player having a fixed record member and a rotatable turn table carrying a sound reproducing stylus which rotates together with the turn table. Until the record is positioned on the record holding portion of the player, the reproducing stylus is disposed in a recessed portion or an opening so as to be shielded from the outside. When the record is positioned and fixed to the record holding portion, a projecting rod attached to the center of the record pushes a pusher placed about the center pin of the player such that the pusher advances along the center pin. By a wedge action given by an inclined face of the head of the pusher, a tone arm carrying the reproduction stylus is pushed outward so that the reproduction stylus can be positioned to confront the recorded face of the record. By virtue of this construction, the design defect of injuries to an operator's body by an exposed stylus can be entirely prevented.

Abstract: The upwardly-extending reproducing stylus (100) is shielded within opening (24) in phonograph (16) when recorded-message carrier (12) is not in playing position by a cover member (246). A cam (256) unshields stylus (100) and exposes it in an arcuate slot (244) when a pin (274) on recorded-message carrier (12) exerts a downward force on cam (256) during the coupling of carrier (12) to opening (24) by engaging annular groove (290) with detents (44, 46, 48).

Abstract: A stationary record player having a turn table and a pickup pivotally secured to the turn table, so as to trace, when rotated together with the turn table, the recording groove of a stationary record medium on which the record player as a whole is placed. The record player has various novel functions such as an automatic stopping function for automatically stopping the player when the play is finished with the record medium, an automatic returning function for automatically resetting the stylus to the starting position, a lift-stop function for automatically stopping the player when the latter is lifted up from the record medium a slide-stop function for automatically stopping the player when the latter is displaced laterally from the correct mounting position on the record medium, a pause state eliminating function for stopping the player when the latter in the pause state is lifted up from the record disc, and so forth.

Abstract: A stationary record player having a turn table and a pickup pivotally secured to the turn table, so as to trace, when rotated together with the turn table, the recording groove of a stationary record medium on which the record player as a whole is placed. The record player has various novel functions such as an automatic stopping function for automatically stopping the player when the play is finished with the record medium, an automatic returning function for automatically resetting the stylus to the starting position, a lift-stop function for automatically stopping the player when the latter is lifted up from the record medium a slide-stop function for automatically stopping the player when the latter is displaced laterally from the correct mounting position on the record medium, a pause state eliminating function for stopping the player when the latter in the pause state is lifted up from the record disc, and so forth.

Abstract: A record player for use with a stationary conventional record disc having a spiral sound groove with signals recorded therein includes a freely movable body which is placed on the record disc, a drive assembly for causing the movable body to effect random movements over the record disc, a pick-up or cartridge pivotally mounted at the underside of the movable body to pivot about a pivot axis for engaging the sound groove and reproducing the signals recorded therein while tracking the spiral sound groove as the movable body travels on the record disc, and a guide assembly for controlling the travel of the movable body relative to the record disc in response to pivotal movement of the pick-up. The guide assembly includes a guide wheel disposed in advance of the pivot axis so that the guide wheel provides a radial inward force to compensate for centrifugal forces acting on the movable body in moving in a generally circular path defined by turns of the spiral sound groove.