Abstract: A micro-electro-mechanical device includes a moveable mass supported within a frame. To support the mass within the frame, a first flexure extends between the mass and the frame. An angle softening element is positioned between a first end of the first flexure and the frame to allow angular movement of the first flexure.

Abstract: A tilt adjusting method for a recording medium driving apparatus including a linear driving device including first and second parallel guide shafts. The method provides a flat mirror on a turntable, an auto-collimator, and a skew angle adjusting jig including an optically flat surface. In a first state of the jig, a height of the second end of the first shaft is adjusted so that a tilt of the first shaft in a radial direction matches a tilt of the mirror, and a height of the first end of the second shaft is adjusted so that a tilt of the first shaft in a tangential direction matches the tilt of the mirror. And, in a second state of the jig, a height of the second end of the second shaft is adjusted so that a tilt of the second shaft in a radial direction matches the tilt of the mirror.

Abstract: A tilt adjusting method that can precisely adjust the parallelism between a plane on which a recording medium is mounted on a turntable and a plane that is perpendicular to an optical axis of a recording medium apparatus is provided.

Abstract: An optical information recording/reproducing apparatus which records, reproduces or erases information by irradiating a disk-like optical information recording medium, supported on a turn table, with a plurality of beam spots through an optical system. A mechanism for moving the turn table in a direction substantially perpendicular to a tracking direction which extends radially from an axis of the information recording medium and intersects at least one of the beam spots, is used to effect tracking adjustment of the beam spots. A mechanism for rotating the plurality of beam spots on the optical axis of the optical system is also used in combination with the turn table moving mechanism to extend the range of tracking adjustment of the plurality of beam spots.

Abstract: A record player is provided with a turntable brake for instantly stopping the turntable of the record player in playback when desired and a pair of balance wheels for permitting slant of the turntable within a predetermined range when manually operating the turntable. The turntable hereof has a peripheral drum portion extending downwardly from its bottom and a rubber shoe is mounted on one end of a pivoted lever arm. The lever arm is adapted to be actuated to press the rubber shoe against the drum portion of the turntable for stopping rotating movement of the turntable by means of friction.

Abstract: An information recording-reproducing apparatus includes a holding bed for holding a card-like or sheet-like information recording medium, a head for recording information on the information recording medium or reproducing the information recorded on the information recording medium, a device for reciprocally rectilinearly moving the holding bed relative to the head, and a device operatively associated with the movement of the holding bed, reciprocally moving a body of a predetermined weight. The device prevents shock during the reversal of the holding bed.

Abstract: A disk recording and/or reproducing apparatus includes a cover mounted on a main body for movement between open and closed positions, a disk presser unit operably mounted on the cover of the apparatus such that it cooperates with a spindle drive unit for holding the disk, a holder cover attached to the cover for movement therewith, and a controller to control the holder to permit movement of the disk presser when the cover is in the closed position, so that when the spindle unit and disk table are moved radially relative to the disk, the presser unit is moved as well.

Abstract: There is disclosed a device for displacing a video disk with respect to a reading head which includes the driving of a conductive disk by means of a video disk rotational motor. The conductive disk passes through the air gaps of two electromagnets located on either side of the displacement axis of a movable member supporting the rotational motor. By differentially energizing the electromagnets, a force is produced which provides for forward and backward movement of the complete movable member of the reader.

Abstract: A video disc player assembly is described employing a fixed base member with a pair of fixed rails, and a movable carriage member employing a pair of linear bearing assemblies in engagement with said rails. A capstan and pulley assembly provides a means for moving the carriage member over the rails in the base member. A motor and spindle are mounted on the carriage for rotary driving of the video disc, a centering means is provided to accurately center the disc about the spindle, and a stabilization plate is provided adjacent and parallel to the rotating disc.

Abstract: A video disc player assembly is described employing a fixed base member with a pair of fixed rails, and a movable carriage member employing a pair of linear bearing assemblies in engagement with said rails. A capstan and pulley assembly provides a means for moving the carriage member over the rails in the base member.

Abstract: In a video disc player, a carriage is subject to translatory motion in correlation with radial motion of a playback stylus relative to a disc record. A stylus arm carrying the stylus at one end thereof has the other end pivotally secured to the carriage. A permanent magnet is mounted on the stylus arm near its free end. A pair of spaced coils having non-magnetic cores are disposed on the carriage such that the stylus arm-mounted magnet is interposed therebetween. The coils are selectively energized to change the radial location of the stylus relative to the record.