Abstract:
A caddy (31) for adapting a mini-cartridge (30) for use in a full-sized disk drive (25). The mini-cartridge (30) is designed for use in a mini disk drive (20), which has dimensions and other characteristics different from a full-size disk drive (25). The caddy (31) provides a mechanism (81) for translating the size of the mini-cartridge (30) to a size suitable for use in the full-size drive (25). Additionally, the caddy (31) provides a mechanism (72, 74, 76) for translating rotational power from the full-size disk drive (25) to the mini-cartridge (30) such that a magnetic medium (29) contained in the mini-cartridge (30) rotates properly during use in the full-size disk drive (25).
Abstract:
A disk drive apparatus has an eject member (44) that moves in tandem with a disk cartridge from a first position to a second position upon insertion of the disk cartridge into the apparatus. The eject member (44) has a projection (64) formed thereon. A first spring (66) biases the eject member (44) in a direction opposite the direction of insertion of the disk cartridge. A motor ring assembly (46) for holding a spindle motor has a rotating member (106) that rotates between an unloaded position and a loaded position. A second spring (68) biases the rotating member (106) toward its loaded position. The rotating member (106) has a first cam surface, a second cam surface extending substantially perpendicular to the first cam surface, and a lead-in cam angle surface between the first and second cam surfaces at an angle thereto. A shape memory alloy wire (92) is provided to rotate the rotating member (106) from its loaded position toward its unloaded position.
Abstract:
A magnetic disk drive (11) has a linear actuator with crash stops molded in the retainer plate (44) of the drive. The retainer plate (44) holds various components in the drive (11). The crash stops include two leaves (46 and 48) which have sufficient resiliency to absorb the impact energy of the carriage (18).
Abstract:
A magnetic tape drive for reading and writing data on magnetic tape in a cartridge (10) of the type in which a driven roller in the cartridge moves tape past a read/write head in the drive and has a tape drive motor (14) with a fan blade assembly (16) which draws cooling air over the baseplate (10a) of the cartridge.
Abstract:
A data storage device (20) for reading and writing information to and from a storage medium (62, 60) and having an actuator (32) for moving a read/write head (36) over a surface of the storage medium comprises an optical sensor (54) mounted on either a surface of the data storage device (20) or a surface of the actuator (32), and a gray-scale pattern (52) provided on the other of these surfaces, opposite the optical sensor (54). The gray-scale pattern (52) provides an amount of reflected light at the optical sensor (54) that varies with the position of the actuator (32). The optical sensor (54) receives the reflected light and generates therefrom an output signal indicative of the position of the actuator (32). A control system (82) processes the position signal output from the optical sensor (54) for controlling the velocity of the actuator (32).
Abstract:
A cable (10) for connecting a peripheral device to an input/output port configured in accordance with either a SCSI protocol or a parallel port protocol comprises a first connector (12) having a plurality of contact pins (1-25); a second connector (14) having a plurality of contact pins (1-25); and a plurality of twisted pairs (230-240) each having a first conductor (230-240) (a) and (b) a second conductor (230-240). The first conductor defining a data/control line, and the second conductor defining a return for the respective data/control line in accordance with the SCSI protocol. The first and second conductors of each of the twisted pairs are connected between selected pins of the first and second connectors such that none of the twisted pairs carries a data/control signal on both its first and second conductors when the cable is connected to an input/output port that is configured in accordance with the parallel port protocol.
Abstract:
A magnetic head/write assembly for a flexible disk drive has rails (14, 15) with slots (18, 19) between the ends thereof. These slots (18, 19) provide an air bleed in the air bearing surface of the rails (14, 15). The air bleed capacity of the slots (18, 19), the width of the rails (14, 15) and the load force applied by the flexures (20) provide optimal width of the rails (14, 15) for stabilizing the media (13) while maintaining a low fly height of the electro-magnetic elements (16, 17) on the media (13).
Abstract:
In a magnetic disk drive, a compliant member (26) connects the top of the bearing assembly (21) for the actuator arm (20) to the drive. The member is compliant in the vertical direction and stiff in the horizontal direction to resist actuating forces being applied to the bearing assembly (21) when the actuator rotates the arm (20). The actuator arm (20) has a fork (34, 36) with a shelf (38, 40) on which the coil (24) is mounted.
Abstract:
A linear actuator (figure 2) for carrying read/write heads (18, 19) into engagement with a recording medium (14) includes a carriage (27) and a subcarriage (34). Flexible springs (36, 38) mount the subcarriage (34) to the carriage (27). A voice coil motor has a coil (22) mounted on the subcarriage (34). Initial energization of the coil (22) causes linear movement of the carriage (27) flexing the springs (36, 38) to produce small incremental movement of the heads (18, 19). Further energization of the coil (22) causes movement of the subcarriage (34) on the bushings (30, 32) to provide coarse adjustment of the actuator (figure 2).
Abstract:
A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.