Abstract: Provided are a hard disk drive (HDD) assembly and a mobile phone employing the HDD assembly. The HDD assembly includes: a HDD including a base member, a cover member, a spindle motor installed on the base member, at least one data storage disk mounted on the spindle motor, and an actuator pivotably installed on the base member and moving a read/write head to a predetermined position on the disk; a printed circuit board (PCB) disposed beside the HDD and operating the HDD; and a mounting bracket mounted on an electronic device while accommodating the HDD and the PCB, and including a first accommodating space adapted to accommodate the HDD and a second accommodating space disposed beside the first accommodating space and adapted to accommodate the PCB.

Abstract: An actuator latch apparatus for a hard disk drive (HDD). The actuator latch apparatus includes a first latch formed on one end portion of a swing arm, a notch formed on the one end portion of the swing arm and spaced a predetermined interval from the first latch in a pivoting direction of the swing arm, and a latch lever pivotably installed on a base member. The latch lever includes a second latch contacting the first latch when the swing arm pivots in a first direction, and a hook engaging with the notch when the swing arm pivots in a second direction opposite to the first direction. Facing surfaces of the first latch and the second latch are inclined such that the first latch and the second latch slide into contact with each other when the swing arm pivots in the first direction.

Abstract: A spindle motor, which rotates a plurality of data storage disks in a hard disk drive, the spindle motor including: a shaft; an inner hub rotatably installed on an outer periphery of the shaft; and a hub assembly, which includes: an outer hub detachably coupled to an outer periphery of the inner hub, the outer hub shaped such that a plurality of disks and at least one spacer for maintaining an interval between adjacent disks of the plurality of disks can be secured to an outer periphery of the outer hub; and a fastening member coupled to a top portion of the outer hub and fixing the outer hub to the inner hub. The outer hub assembly to which the plurality of disks are secured can be mounted on an off-line servo-track writer, and can also be attached as is to the spindle motor after servo-track writing is completed.

Abstract: A disk drive having an anti-shock structure is provided. The disk drive includes: a base member; a spindle motor supported by a spindle motor support formed on the base member, the spindle motor rotating a data storage disk; an actuator rotatably coupled to an actuator pivot supported by a pivot support formed on the base member, the actuator moving a read/write head to a position on a recording surface of the disk; and slots formed in the base member around the circumference of each of the spindle motor support and the pivot support, the slots for partially controlling the stiffness of the base member. The slots include a first slot formed on a circumference region of the spindle motor support near the pivot support, and a second slot formed on a circumference region of the pivot support opposite to the spindle motor support. Due to the structure of the disk drive, the spindle motor and the actuator pivot are inclined in the same direction when an external impact is applied.

Abstract: An apparatus and method for controlling head loading in a disk drive including a displacement measuring unit measuring a vertical displacement of a disk, a rotational angle detecting unit detecting a rotational angle of a spindle motor, and a controller controlling the movement of an actuator to load a head on the disk while a vertical displacement of a portion of the disk on which the head is loaded is decreasing so that the disk separates farther from a position on which the head is parked. Therefore, the possibility of collision between the head and the disk during head loading is reduced, thereby preventing damage to the head and disk and improving the reliability of the disk drive.

Abstract: Provided is a structure for mounting an embedded type disk drive in an electronic system having opposite surfaces corresponding to both surfaces of the disk drive. The structure includes a mounting damper coupled to a corner portion of the disk drive to protrude from either surface of the disk drive, and a mounting groove formed in each of the opposite surfaces of the electronic system at a position corresponding to the mounting damper. As the mounting damper is inserted in the mounting groove, the disk drive is mounted in the electronic system.

Abstract: A flexible printed circuit (FPC), electrically connecting a spindle motor on a base of a disk drive with a printed circuit board (PCB) outside of the base, and a disk drive including the FPC, are provided. The FPC includes a wiring portion having one end connected to the spindle motor; a bonded portion connected to the other end of the wiring portion and attached to the base; electrode supports, each having a predetermined elasticity and extending from an outside edge of the bonded portion; a wiring disposed along the wiring portion and the bonded portion; and first electrodes disposed on the electrode supports and connected to the wiring. The first electrodes contact second electrodes disposed on the PCB due to the elasticities of the electrode supports. The disk drive allows the spindle motor to be electrically connected to the PCB using only the FPC, i.e., without using a separate connector.

Abstract: A mounting pad for a disk drive is provided. The mounting pad includes a sealing layer, which is formed on one surface of the disk drive so that a gap between a base and a cover of the disk drive can be sealed; an adhesive layer, which is formed on a surface of the electronic system facing the disk drive; and a vibration attenuation layer, which is interposed between the sealing layer and the adhesive layer to attenuate physical shocks and/or vibrations applied to the disk drive from the outside. Accordingly, it is possible to install the disk drive in the electronic system more firmly, attenuate physical shocks and vibrations applied to the disk drive from the outside, and seal a gap between the base and the cover of the disk drive.

Abstract: An actuator latch apparatus for a data storage device includes a latch lever installed on a base plate of the data storage device capable of pivoting and having a first latch portion provided at one end portion of the latch lever, a spring connected to the other end portion of the latch lever and made of a shape memory alloy to allow the latch lever to pivot in a predetermined direction by being deformed according to application of electric power, and a second latch portion provided at an end portion of an actuator moving a read/write head to a predetermined position of a disk.

Abstract: A slim spindle motor and a micro-drive apparatus including the slim spindle motor are provided. In the spindle motor, a hub is rotatably mounted on a base plate by ball bearings. The hub is used to seat a disk thereon. A ring-shaped magnet is engaged to the outer boundary of the hub. A stator is formed by arranging a plurality of yokes in a round shape around the outer boundary of the ring-shaped magnet. The yokes include cores having curved ends to reduce the central axis offset between the yokes and the ring-shaped magnet. Most of the yokes include coils that cover the cores. Since the central axes of the yokes in the stator are made collinear with the central axis of the ring-shaped magnet, the slim spindle motor can operate stably.

Abstract: A slim actuator and a micro-drive apparatus using the same are provided. The slim actuator includes a suspension having a head mounted at one end of the suspension to write/read data to/from a disk and a head gimbal assembly. The head gimbal assembly includes a unit-mounting portion having one end connected to the suspension, a fantail molding portion extending from the other end of the uni-mounting portion, and a voice coil which is mounted on the fantail mounting portion such that current flows in the voice coil. The voice coil rotates the suspension by an electromagnetic force created by interaction between the electric field of the current and an applied magnetic field. Thus, the slim actuator uses a single channel and has excellent resonance characteristics. Mobile micro-drive apparatuses employing the slim actuators can be obtained.

Abstract: A linear actuator capable of inducing a linear motion as well as a rotational motion using only two rotors is provided. The linear actuator includes: first and second rotors connected to respective driving force sources; a linear motion unit formed on the first rotor to be linearly movable; and a driving power transmission unit which is fixed to the second rotor and engages the linear motion unit. A linear motion on a rotor can be easily induced using a relative angular velocity difference between two rotors without an additional driving power source for the linear motion.

Abstract: An apparatus for measuring six-degree-of-freedom motions by using three-facet reflector, the six-degree-of-freedom motions of an object being measured by using the laser beam proceeding from a laser light source, comprising: a multiple facet reflector in the form of a trigonal pyramid, the multiple facet reflector being fixed on the object for measurement and able to reflect the laser beam in three directions; three position-sensitive detectors for measuring the position and intensity of the laser light points formed on their surfaces, with the movement of the multiple facet reflector, and then providing output signals; and a controlling section for analyzing six-degree-of-freedom motions of the multiple facet reflector by using the position and intensity of the laser light points output from the three position-sensitive detectors. (FIG. 4).

Abstract: The present invention relates to a apparatus for measuring 6-degree-of-freedom motions of a rigid body by using a three-facet mirror wherein the measurement of the 6-degree-of-freedom displacements of an object, particularly an object in motion with a high-speed, can be made with ease and with accuracy, and specially the measuring precision is excellent.

Abstract: A linear actuator capable of inducing a linear motion as well as a rotational motion using only two rotors is provided. The linear actuator includes: first and second rotors connected to respective driving force sources; a linear motion unit formed on the first rotor to be linearly movable; and a driving power transmission unit which is fixed to the second rotor and engages the linear motion unit. A linear motion on a rotor can be easily induced using a relative angular velocity difference between two rotors without an additional driving power source for the linear motion.

Abstract: A 6 degree-of-freedom (DOF) motion measuring apparatus using a multidirectional reflector, and a swing arm type optical system using the 6-DOF motion measuring apparatus to measure the 6-DOF motion of a slider in a hard disc drive (HDD) are provided. The 6-DOF motion measuring apparatus includes: a multidirectional reflector having at least three reflecting sides by which the laser beam is slit and reflected in three directions, the multidirectional reflector being provided to the object whose motion is to be measured; three position-sensitive detectors for receiving three sub-laser beams reflected from the multidirectional reflector; and a controller for calculating the 6-DOF motion of the multidirectional reflector using the intensity distributions of the three sub-laser beams received by the three position sensitive detectors assuming that the laser beam before reflection has a Gaussian intensity distribution.

Abstract: A six-axes force-moment measuring apparatus includes a mechanical structure having sensors installed at predetermined positions on the mechanical structure for measuring tensile and compressive forces applied to each axis. The output signal from the sensors is processed and analyzed to determine the forces and/or moments applied to the mechanical structure. The six-axes force-moment measuring apparatus is readily constructed and repaired, and is capable of supporting large loads.

Abstract: A 6 degree-of-freedom (DOF) motion measuring apparatus using a multidirectional reflector, and a swing arm type optical system using the 6-DOF motion measuring apparatus to measure the 6-DOF motion of a slider in a hard disc drive (HDD) are provided. The 6-DOF motion measuring apparatus includes: a multidirectional reflector having at least three reflecting sides by which the laser beam is slit and reflected in three directions, the multidirectional reflector being provided to the object whose motion is to be measured; three position-sensitive detectors for receiving three sub-laser beams reflected from the multidirectional reflector; and a controller for calculating the 6-DOF motion of the multidirectional reflector using the intensity distributions of the three sub-laser beams received by the three position sensitive detectors assuming that the laser beam before reflection has a Gaussian intensity distribution.