98results about "Record carrier types" patented technology

According to one embodiment, a disk device includes a magnetic disk, a magnetic head, a flexure, a piezoelectric element, a first bonding material, a second bonding material, and a protrusion. The flexure includes a first outer surface, a first pad, and a second pad. The first pad and the second pad are on the first outer surface. The piezoelectric element includes a second outer surface, a first electrode, and a second outer surface. The first electrode and the second electrode are on the second outer surface. The first bonding material, which is conductive, bonds the first pad and the first electrode. The second bonding material, which is conductive, bonds the second pad and the second electrode. The protrusion is provided on the flexure, is located at least partially between the first bonding material and the second bonding material, and protrudes from the first outer surface.

Provided is a cover capable of adapting to a case requiring properties hard to be compatible for a gasket of a recording device. The cover attached to a base of a recording device to close the base, comprises a gasket having a loop shape and provided to a cover body, wherein the gasket has an inner gasket portion and an outer gasket portion arranged adjacent to each other on an inward side and an outward side of the loop shape, the outer gasket portion has a first property and a second property that are different properties and is superior to the inner gasket portion in the first property, and the inner gasket portion has the first property and the second property and is superior to the outer gasket portion in the second property.

A magnetic medium is described which includes a thin film magnet structure formed of a ferromagnetic alloy or compound. The thin film magnet structure includes one or more ferromagnetic domains and is coupled to one or more optical structures. Each of the one or more ferromagnetic domains have a magnetization that is switchable between two or more states. Each of the one or more optical structures is configured to increase absorbance of light at a target wavelength in the thin film magnet structure, such that in response to illumination of a ferromagnetic domain with continuous-wave light including the target wavelength, that ferromagnetic domain undergoes all-optical magnetic switching.

To provide a disk device capable of suppressing contamination.SOLUTION: A disk device includes a magnetic disk, a magnetic head, a flexible printed circuit board, electronic components, and a wall. The flexible printed circuit board is electrically connected to the magnetic head. The electronic components are mounted on the flexible printed circuit board. The wall has higher rigidity than the flexible printed circuit board and is mounted on the flexible printed circuit board. The flexible printed circuit board has a first surface facing the electronic component through a space and a second surface positioned on an opposite side of the first surface and facing the wall, and is provided with a first through hole opened on the first surface and the second surface and communicating with the space. The wall is provided with a second through hole penetrating the wall and communicating with the first through hole.SELECTED DRAWING: Figure 4

According to one embodiment, a disk device includes a magnetic disk, a magnetic head, a flexure, a piezoelectric element, a first bonding material, a second bonding material, and a protrusion. The flexure includes a first outer surface, a first pad, and a second pad. The first pad and the second pad are on the first outer surface. The piezoelectric element includes a second outer surface, a first electrode, and a second outer surface. The first electrode and the second electrode are on the second outer surface. The first bonding material, which is conductive, bonds the first pad and the first electrode. The second bonding material, which is conductive, bonds the second pad and the second electrode. The protrusion is provided on the flexure, is located at least partially between the first bonding material and the second bonding material, and protrudes from the first outer surface.

According to an embodiment, an electronic device includes a substrate and an electronic component. The substrate includes a first surface facing a first direction and to which a first hole and a second hole are open. The electronic component includes a base, a first protrusion in the first hole, and a second protrusion in the second hole. The first protrusion and the second protrusion protrude from the base. The first end of the first protrusion is more apart from the first surface than the second end of the second protrusion. The first protrusion and the second protrusion have a first inclined surface and a second inclined surface extending obliquely with respect to the first direction. In a third direction orthogonal to the first direction the first inclined surface is longer in length than the second inclined surface.

To accurately detect read errors in postcodes. [Solution] The magnetic disk device of the embodiment comprises a magnetic disk having a plurality of tracks, a magnetic head for reading and writing data to the magnetic disk, a plurality of servo regions provided on each of the plurality of tracks and including at least a portion of a first physical pattern which is the physical pattern after writing of a first data pattern including position information for each of the plurality of tracks, and a control unit for controlling the magnetic head. Each of the plurality of servo regions includes either a first servo region including the first physical pattern, or a second servo region including a second physical pattern which is the physical pattern after writing of a second data pattern different from the first data pattern, for each of the plurality of tracks, and the control unit determines whether the third servo region among the plurality of servo regions of the plurality of tracks has the first or the second physical pattern.

A method of manufacturing a magnetic disk device of an embodiment includes: adjusting relative heights of a spindle and a plurality of ramps, the spindle being allowed to rotate in a state in which center axes of a plurality of magnetic disks having ends deviating from a geometrical plane with a center point as a reference are aligned, the plurality of ramps being arranged at end positions of the plurality of magnetic disks; and assembling the plurality of magnetic disks along an axial direction of the spindle in a state in which directions of deviations of the ends from the center point are aligned.

To provide a magnetic tape cartridge, a cartridge management system, a reading method, and a program enabling accurately reading an identifier.SOLUTION: A magnetic tape cartridge includes a case on which an identifier is displayed, and a storage medium in which reading condition information that is information regarding a condition for reading the identifier is stored.SELECTED DRAWING: Figure 8

According to one embodiment, a magnetic disk device includes a rotatable disk-shaped recording medium including a plurality of concentric recording tracks, a magnetic head including a write element which writes data to the recording tracks, a heating element, and a sensor which detects a surface condition of the recording medium, and a controller including an inspection circuit which detects, based on an sensor output of the sensor, presence or absence of a bump on a surface of the recording medium, a height and a width of the bump, and a memory which records the detected height and width of the bump.

According to one embodiment, a magnetic disk device includes a rotatable disk-shaped recording medium including a plurality of concentric recording tracks, a magnetic head including a write element which writes data to the recording tracks, a heating element, and a sensor which detects a surface condition of the recording medium, and a controller including an inspection circuit which detects, based on an sensor output of the sensor, presence or absence of a bump on a surface of the recording medium, a height and a width of the bump, and a memory which records the detected height and width of the bump.

According to one embodiment, a magnetic head includes a first magnetic pole, a second magnetic pole, and a magnetic element. The magnetic element is provided between the first magnetic pole and the second magnetic pole in a first direction from the first magnetic pole to the second magnetic pole. The magnetic element includes a first magnetic layer provided between the first magnetic pole and the second magnetic pole, a second magnetic layer provided between the first magnetic layer and the second magnetic pole, a third magnetic layer provided between the second magnetic layer and the second magnetic pole, and a fourth magnetic layer provided between the third magnetic layer and the second magnetic pole. The first magnetic layer includes a first face facing the first magnetic pole. The fourth magnetic layer includes a second face facing the second magnetic pole.

A voice coil motor assembly (VCMA), such as for a hard disk drive, includes a low-density voice coil and a high-density coil stiffener disposed inside the coil of wire. The low-density voice coil, utilizing copper-clad aluminum or aluminum wire, is configured to increase the second coil torsion mode frequency of the VCMA, thereby bringing it closer to the second torsion mode frequency of the actuator arms. In conjunction, the high-density stiffener, utilizing steel or copper or zinc, is configured to increase the mass of the VCMA to compensate for the lower-density wire in regard to the center of mass of the VCMA about its axis of rotation. In viewing under customer box vibration conditions and in terms of position error signals (PES), a non-trivial peak in the PES spectrum due to the second coil torsion mode is largely eliminated, and the power of PES is reduced to about half.

To provide a disk device capable of improving the strength of coupling between an end surface of a base and an outer cover.SOLUTION: A disk device according to one embodiment includes a magnetic disc, a base, a film, an inner cover, and an outer cover. The base is provided with an inner space and has: a first inner surface that surrounds the magnetic disk; a support surface that is connected to an end of the first inner surface in a first direction; a second inner surface that is more separated from a rotation axis of the magnetic disk than the first inner surface and is also connected to the support surface; and an end surface that is connected to an end of the second inner surface in the first direction. The film covers a coating region included in the second inner surface and is separated from the end surface and an exposure region included in the second inner surface and aligned with the coating region around the rotation axis. The inner cover is supported on the support surface and is surrounded with the second inner surface. The outer cover is at least partially coupled to the base.SELECTED DRAWING: Figure 1

A method of manufacturing a magnetic disk device of an embodiment includes: adjusting relative heights of a spindle and a plurality of ramps, the spindle being allowed to rotate in a state in which center axes of a plurality of magnetic disks having ends deviating from a geometrical plane with a center point as a reference are aligned, the plurality of ramps being arranged at end positions of the plurality of magnetic disks; and assembling the plurality of magnetic disks along an axial direction of the spindle in a state in which directions of deviations of the ends from the center point are aligned.

A video player includes the user interface comprising: a video display; a texture strip visually representing a series of frames of a video, the texture strip comprising a sequence of textured frame representations, each textured frame representation in sequence of textured frame representations representing a corresponding frame from a series of frames; a control to allow a user to use the texture strip to seek frames in the series of frames in a random manner. An input is received via the control, the input including an indication of a selection of a location in the texture strip, the location in the texture strip having a corresponding temporal location in the series of frames. Based on the input, a frame selected from the series of frames is displayed in the video display, the selected frame located at the corresponding temporal location in the series of frames.

In a recording and reproducing apparatus and a recording and reproducing method for the recording and reproducing apparatus for recording and reproducing image information on a scene obtained through photographing, relative to a predetermined first recording medium and being capable of setting one or more chapters to each scene, a face recognizing process is executed for a photographed image based on the image information, an importance level of each chapter is set in accordance with a result of the face recognizing process for a very important person (VIP) set by a user, and each chapter having a relevant importance level among importance levels of respective chapters is selectively reproduced. A user can therefore find an object chapter and scene quickly and easily.

Provided is a disk device capable of improving the bonding strength between an end surface of a base and a housing. A disk device according to an embodiment includes a magnetic disk, a base, a film, an inner cover, and an outer cover. The base body is provided with an internal space; the magnetic disk includes a first inner surface surrounding the magnetic disk, a support surface connected to an end of the first inner surface in a first direction, a second inner surface farther from a rotation axis of the magnetic disk than the first inner surface and connected to the support surface, and an end surface connected to an end of the second inner surface in the first direction. The film covers a covered region in the second inner surface, and is separated from the end surface and an exposed region in the second inner surface, the exposed region being aligned with the covered region around the rotation axis. The inner cover is supported by the support surface and surrounded by the second inner surface. And the outer cover is combined with at least one part of the base body.

A module including first and second variable inductances. The first variable inductance is electrically connected to a pair of nodes in a first half-circuit. One of the nodes in the first half-circuit is a first connection terminal. The second variable inductance is electrically connected to a pair of nodes in a second half-circuit. One of the nodes in the second half-circuit is a second connection terminal. The first half-circuit receives a flow of current in response to the second half-circuit supplying the current to the load in a flow direction from a load through the first connection terminal. The second half-circuit is configured to receive the flow of the current in response to the first half-circuit supplying the current to the load in a direction opposite to the flow direction from the load through the second connection terminal.

An idle sweep routine for a hard disk drive involves a series of servo-controlled one-Nth (1 / N) equivalent sub-band random seeks in one radial direction, followed by another series of servo-controlled one-Nth equivalent sub-band random seeks in the other radial direction, where a complete band refers to the complete set of user-data tracks and a one-Nth sub-band refers to a contiguous 1 / N portion of the complete band. For example, a first series of ⅕ sub-band random seeks may be in the disk outer diameter (OD) to inner diameter (ID) direction, followed by a second set of ⅕ sub-band random seeks in the ID to OD direction. Based on disk scratch and Si smear robustness, ⅕ sub-band random seeks are found effective in moving the sider over a significant number of tracks during each seek to likely inhibit disk lubrication degradation and avoid thermal asperities during such an idle sweep routine.

A magnetic disk device and a method for writing a spiral pattern are provided that can improve reliability. The magnetic disk device of this embodiment includes: a disk having a first surface and a second surface different from the first surface; a first head for reading and writing data from and to the first surface; a second head for reading and writing data from and to the second surface; a voice coil motor for moving the first and second heads; and a controller for dividing and writing multiple spiral patterns to be written to one surface of the disk onto the first and second surfaces.

The computer-implemented method and the computing device for partitioning video data between multiple discs are disclosed. An evidence data and / or a list of evidence data comprising multiple items, wherein at least some items are grouped in events, is received. An event for allocation is selected and allocated by assigning each item of the event to a disc according to a predefined criteria.

According to one embodiment, a head suspension assembly includes a support plate, a wiring member on the support plate, and a magnetic head mounted on the wiring member. The magnetic head includes a slider, a head element, connection pads, and a laser oscillation element on the slider. The wiring member includes a plurality of first connection terminals each having a bonding surface bonded to a connection pad of the slider and a second connection terminal including a bonding surface bonded to a connection pad of the laser oscillation element and a non-bonding surface opposite to the bonding surface. The wiring member includes a cover layer covering at least a part of the non-bonding surface of the second connection terminal.

A playback device includes: an attribute readout unit that reads out first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range, from a management information file recorded in the recording medium in a manner correlated with the video stream; a decoding unit that generates decoded video information by reading the video stream out from the recording medium and decoding the video stream; and an output unit that, in a case where the first attribute information that has been read out indicates the second dynamic range, outputs the decoded video information, along with maximum luminance information indicating a maximum luminance of the video stream in accordance with the second dynamic range.

To provide a magnetic disc device capable of appropriately setting a data region of a magnetic disc in view of an amplitude change of off-track vibration for an ambient temperature change.SOLUTION: A magnetic disc device includes a magnetic disc and a magnetic head. The magnetic disc has a data region capable of data recording and playback. The magnetic head records data into a data region and plays back the data from the data region. An outer edge of the data region has: a first outer edge; a second outer edge that is located on an inner circumferential side of the magnetic disc from the first outer edge; and a third outer edge that connects together the first outer edge and the second outer edge, and at least partially has a concaved part that is concaved towards the inner circumferential side of the magnetic disc.SELECTED DRAWING: Figure 10

To provide an electronic apparatus in which an electronic component can be more reliably mounted on a substrate.SOLUTION: An electronic apparatus according to one embodiment includes a substrate and an electronic component. The substrate has a first surface directed to a first direction, and is provided with a first hole and a second hole. The electronic component includes a base, and a first projection and a second projection that are projected from the base and are partially housed in the first hole and the second hole. In a second direction, an end of the first projection is separated farther from the first surface than the end of the second projection. The first projection and the second projection have a first inclined surface and a second inclined surface that extend from the end obliquely with respect to the first direction. A length of the first inclined surface in a third direction orthogonal to the first direction is longer than a length of the second inclined surface in the third direction.SELECTED DRAWING: Figure 4

A display device includes circuitry configured to transmit, to a reproduction device, display-capability information representing performance characteristics of the display device. The circuitry receives video data from the reproduction device that includes brightness-characteristic information and information of a master video when the display-capability information represents a display performance of the video data. The circuitry displays an image of the received video data in accordance with brightness designated by the received information, and adjusts the image brightness based on the display device's performance. When the master video is high-dynamic-range (HDR) video data, the circuitry recognizes the HDR content and displays the image in accordance with brightness characteristics of the master video.

An embodiment of the present invention provides a disk device capable of suppressing peeling of a flexible printed circuit board. A disk device of one embodiment has a magnetic disk, a magnetic head, a first flexible printed circuit board, and a second flexible printed circuit board. The first flexible printed circuit board has a plurality of first terminals. The second flexible printed circuit board has a surface, a plurality of second terminals provided on the surface and joined to the plurality of first terminals by a joining body, and a first planar ground layer covering at least one of the plurality of second terminals in a direction orthogonal to the surface. The plurality of second terminals include a first read terminal. The first planar ground layer is separated from at least a portion of the first read terminal in a direction along the surface.

A system 100 for the erasure of data from a tape cartridge 110 has a data tape 112, a cartridge memory (CM) chip and a controller 102 in communication with a magnetic head 108, a tape driver 106 and a

Disclosed are methods and assemblies used to optically communicate signals within a hard disk drive between controller electronics and recording heads. One or more transceivers in a fixed location can be used to communicate with one or more transceivers positioned on a moveable actuator and coupled to the recording heads. The use of linear motion actuators can help preserve line-of-sight optical communication between the transceivers.