Abstract: An apparatus for use with a hard disk drive, comprising: a selectable notch filter with a selectable notch frequency; a shock sensor of the hard disk drive, coupled to the selectable notch filter, the shock sensor having at least one resonance frequency; a flip flop coupled to an output of the notch filter and an output of the shock sensor; a calibration logic coupled to an output of the flip flop, wherein an output of the calibration logic is coupled to a selection input of the selectable notch filter.

Abstract: The present invention provides an optical disc drive and a damper positioning structure thereof. The optical disc drive includes a top cover, a traverse, and a chassis, and the damper positioning structure comprising: a bent element provided on the top cover and having an extension portion and a fixing portion, wherein the fixing portion has a through hole; a positioning pillar provided on the chassis; and a damper for supporting and securing the traverse on the chassis, wherein the damper has a positioning hole through which the positioning pillar is insertable; wherein, when the top cover is assembled to the chassis, the positioning pillar passes through the through hole of the fixing portion, and the fixing portion presses against the damper.

Abstract: The present invention directs an anti-shock method for head stack assembly which carries a slider for flying on a disk for operation, and the anti-shock method includes: inputting a constant current to a head disk interface sensor which is deposited in the slider; obtaining a changing voltage of the head disk interface sensor, which is changed with the temperature of the head disk interface sensor as the slider is shocked; outputting the changing voltage to a controller with a threshold set therein; if the changing voltage is bigger than the threshold for a specified number of times, the controller is triggered to control the head stack assembly to stop operating and load on a ramp beside the disk; while if the changing voltage is small than the threshold for said specified number of times, the controller is not be triggered and the head stack assembly still operates.

Abstract: A disk drive including a disk having a bottom surface and a base having a first surface lying along a first plane and a second surface lying along a second plane positioned substantially parallel to the first plane. The second surface is spaced apart from the first surface and is beneath at least a portion of the bottom surface of the disk. A damper of the disk drive is located on the second surface adjacent the first surface and is configured to contact a portion of the bottom surface of the disk when the disk is deflected toward the first surface.

Abstract: In a storage device provided with a plurality of recording devices, the vibrations which propagate to the recording devices through a board can be reduced with a small number of parts. A storage device equipped with a plurality of recording devices having: a canister equipped with the recording device; a board equipped with a circuit that transmits a signal to the recording device or processes a signal; a chassis equipped with the board and the canister; a plate-like piezoelectric element attached to part of the board; a vibration detection sensor attached to part of the board; and a control unit that controls a drive signal given to the piezoelectric element in accordance with a sensor output of the vibration detection sensor is proposed.

Abstract: A control system for achieving high-speed torque for a joint of a robot includes a printed circuit board assembly (PCBA) having a collocated joint processor and high-speed communication bus. The PCBA may also include a power inverter module (PIM) and local sensor conditioning electronics (SCE) for processing sensor data from one or more motor position sensors. Torque control of a motor of the joint is provided via the PCBA as a high-speed torque loop. Each joint processor may be embedded within or collocated with the robotic joint being controlled. Collocation of the joint processor, PIM, and high-speed bus may increase noise immunity of the control system, and the localized processing of sensor data from the joint motor at the joint level may minimize bus cabling to and from each control node. The joint processor may include a field programmable gate array (FPGA).

Abstract: To reduce vibration in the rotation direction acting on the hard disk drive with a part of the hard disk drive as the rotation center. The disk unit comprises a hard disk drive comprising a drive mechanism which rotates and drives a plurality of disk media, an arm rotatably supported on a pivot and placed as movable in the rotation area of the disk media, and an actuator which performs positioning control of the magnetic head fixed to the arm to a target position on the disk media, a frame supporting the hard disk drive, and a dynamic absorber placed in the hard disk drive or in the frame, wherein the dynamic absorber absorbs vibration in the rotation direction acting on the hard disk drive with a part of the hard disk drive as the rotation center.

Abstract: A periodic rotational vibration check for storage devices to compensate for varying loads is disclosed. A variable representing rotational vibration status is maintained in a rotational vibration log. The variable is processed to determine whether a storage device exhibits a rotational vibration issue. Workload analysis is performed to identify a change to the workloads run on physically separate hardware to resolve the rotational vibration issue and thus eliminate the need for more expensive hardware.

Abstract: A method comprising: providing an arm actuation comprises a lightning hole; and attaching an air damper having a channel on the actuator arm and over the lightning hole, the air damper has the channel from a perimeter of the air damper.

Abstract: A method and system for sensing the current applied to the motor of a data storage device and determining whether a shock event has occurred by processing the sensed current levels.

Abstract: A storage device includes a processor, a vibration detecting sensor that detects a vibration, a plurality of disk drives, and a disk control device that causes the processor to perform an operation of generating a vibration for a disk drive selected from among the plurality of disk drives so that the generated vibration vibrates in a cycle that is shorter than a cycle of the vibration detected by the vibration detecting sensor.

Abstract: An information processing apparatus includes: a hard disk drive unit including a hard disk drive configured to read various data from and write various data in a magnetic disk incorporated therein; a housing of an apparatus main body configured to hold the hard disk drive on a substrate to be freely attached and detached; and a hard-disk-drive holding member provided in the hard disk drive unit, configured to include a first anti-vibration member having vibration damping properties disposed on a predetermined surface parallel to a disk width direction of the magnetic disk and fix and hold the hard disk drive in a state in which the first anti-vibration member is sandwiched between the hard disk drive and the predetermined surface, and formed of a metal member.

Abstract: A portable electronic device having an outer housing, a component, and a shock-absorption assembly is disclosed. A shock-absorption assembly located within the outer housing and coupled to the component can include one or more elements adapted to dampen a mechanical shock to the component. The shock-absorption assembly elements can be mounted to corners and/or edges of the component. Shock-absorption assembly elements can include a first portion comprising protrusions that provide initial damping of the mechanical shock and a second portion comprising an elastic block that provides final damping of the mechanical shock.

Abstract: A motor unit for use in a disk drive apparatus includes a motor portion, a housing member including a through hole defined therein, and a circuit board. The motor portion includes a rotating portion, a base portion, and a stator fixed to the base portion. The circuit board is arranged to extend from an outside of the motor portion to an inside of the stator through a gap defined between the stator and the base portion. The circuit board includes a connection portion arranged radially inward of the stator. A plurality of lead wires of the stator is connected to the connection portion.

Abstract: The invention is to provide a restraining device of an optical disk drive in which a traverse is disposed. A transmission unit rotates a roller to, load/unload a disc, and drives a slider to move the roller. The transmission unit includes the restraining device moving with the roller. When the optical disk drive carries a disc, the slider moves to release the traverse and push down the roller to move the restraining device away from the vibration range of the traverse. When the optical disk drive does not carry a disc, the slider moves to restrain the traverse and release the roller to move the restraining device close to the front end of the traverse. The vibration range of the traverse is restrained to protect the gear teeth from damage.

Abstract: An apparatus of dynamic anti-vibration for a storage device to support a storage device in a housing is provided. The apparatus includes a base board for holding the storage device, a plurality of damping elements coupled to the base board and the housing which have damping characteristics to dissipate kinetic energy and reduce the vibration of the base board, and at least one actuator coupled to the base board and the housing. The actuator electrically connected to the control unit is driven by the control unit, so as to generate a force to neutralize the vibration of the base board.