摘要:
An image processing device includes a change-between-images calculating unit that calculates an amount of change between images in time-series images sequentially obtained, the amount of change between images indicating an amount of change between each of the time-series images and a close image temporally close to the each of the time-series images; a primary-digest-image-group extracting unit that extracts a group of primary digest images from the time-series images on the basis of the amount of change between images; a change-in-section calculating unit that calculates an amount of change between time-series sections of the time-series images, each of the time-series sections being defined by each image of the group of primary digest images; and a digest-image-group extracting unit that extracts a group of digest images from the time-series images on the basis of both the amount of change between images and the amount of change between time-series images.
摘要:
A spoiler of a hard disk drive including a body portion coupled with a housing of the hard disk drive and adjacent to a hard disk, and an end portion coupled with the body portion, the end portion comprising a fan-shape, the spoiler extending radially with respect to the hard disk and parallel to a surface of the hard disk, wherein the fan-shape expands outward toward the tip end.
摘要:
A hard disk drive including a housing, at least one disk mounted to the housing, an actuator mounted to the housing and being movable relative to the at least one disk, a conductive component support coupled with the actuator and extending the first surface, the conductive component support having a support wall attaching the conductive component support to the actuator, and a boss coupled with a first surface of the actuator and the support wall, the boss having a first end facing a flat coil side of the actuator and a second end facing a head gimbal assembly side of the actuator, wherein the first end extends further toward the flat coil side than the conductive component entrance portion of the conductive component support such that a portion of the boss overlaps a portion of the conductive component support.
摘要:
A hard disk drive including a base portion, a motor-hub assembly to which at least one disk is coupled, the motor-hub assembly coupled with the base portion and an airflow shroud coupled with the base portion. The airflow shroud including an airflow inlet oriented parallel to the disk and an airflow outlet oriented perpendicular to the disk. In so doing, the airflow shroud reduces vibration of a rotating disk in a hard disk drive.
摘要:
Embodiments of the present invention help to prevent leakage of low-density gas during low-density gas injection into a disk drive device and to perform low-density gas injection efficiently. In a hard disk drive (HDD) according to one embodiment of the present invention, an injection hole filter with a valve function is attached to a helium injection hole in order to inject helium gas in an enclosure. The injection hole filter has a valve member configured to operate in an open state or closed state. The open state is a state while the helium gas is being injected and the closed state is a state after the helium gas has been finished to be injected. The valve member is in the open state if the outside pressure is higher than the inside pressure and is in the closed state if the inside pressure is higher than the outside pressure.
摘要:
Embodiments of the present invention help to provide a sealed hard disk drive (HDD) with high reliability. According to one embodiment, a HDD is a hermetically sealed HDD. A base has an opening of a through-hole on its bottom; a feedthrough is provided so as to close the opening. A flange of the feedthrough has a larger outline than the opening, and its rim is joined to the base with solder at the solder joint. The solder at the solder joint is mainly composed of Sn and contains 15 atomic percent to 27 atomic percent of indium. This solder reaches the γ phase from −150° C. to 120° C. Accordingly, even if the HDD has been exposed at low temperature for a long time, the solder joint is not broken so that helium gas does not leak.
摘要:
Embodiments of the present invention provide a magnetic disk drive that can estimate the amount of gas filled in a housing precisely and simply. According to one embodiment, a magnetic disk drive including a housing in which a magnetic disk and a magnetic head are accommodated and gas having lower density than air is filled, a heating body provided in the housing, and means for holding a reference value of a parameter representing the temperature change speed of the heating body when the heating body is heated in the housing filled with a predetermined reference amount of the gas.
摘要:
To efficiently manufacture a feedthrough used in a disk drive device having a hermetically sealed enclosure, embodiments of the present invention manufacture a feedthrough used in an HDD having a hermetically sealed enclosure. An embodiment of a manufacturing method of the present embodiment manufactures a columnar body, cuts the columnar body in the direction vertical to the axes of pins, and cuts out a feedthrough. Then, necessary plating is made on the outer surfaces of the cut out feedthrough. The columnar body comprises a hollow tube, a plurality of pins inserted inside the tube, and an insulating sealant filled inside the tube. This manufacturing method achieves efficient manufacture of the feedthrough.
摘要:
An information reproduction and recording apparatus able to prevent invalid data not required for recording from being recorded on a recording medium when transferring reproduced information by a small number of signal lines such as a three-line serial peripheral interface, wherein a music data reproducing unit outputs a data signal DATA and clock signals LRCK and BCK to a valid recording period control unit and outputs a SPACE signal to the valid recording period control unit while outputting music data containing track interval data, the signals are transferred to a high speed encoder and the data signal DATA is encoded and recorded on a hard disk by an HDD based on the clock signals LRCK and BCK while the SPACE signal is being output, and the valid recording period control unit suspends transfer of the clock signal LRCK and prevents recording of invalid data on the hard disk while the SPACE signal is not being output.
摘要:
A magnetic disk device having a magnetic disk for recording information, a spindle motor for driving the magnetic disk for rotation, a magnetic head for reading information from the magnetic disk, a carriage arm for supporting the magnetic disk, a voice coil motor for moving the carriage arm, a loading/unloading mechanism for retracting the carriage arm from a position on the magnetic disk, and a shroud for forming a peripheral wall. The magnetic device includes an air passage positioned between the loading/unloading mechanism and the shroud.