摘要:
A groove is formed on a master disc. The groove is formed substantially along a spiral standard locus, but a groove position is displaced in a direction crossing the standard locus according to record data. The wobble is determined from a wobble signal. A wobble is formed such that an average value of displacement of the groove position with the standard locus as a reference is zero for each predetermined data unit.
摘要:
An electronic apparatus comprises a display device and a main body that has a plurality of function parts, such as a control circuit module and a power unit, built-in. The main body includes a cover in the form of a hollow box, having a top plate on which the display device is placed, and a frame held inside the cover so as to be able to be drawn out of the cover and supporting the function parts. The cover has a strength such that it can maintain the shape of a box even when the display device is placed on the top plate.
摘要:
According to one embodiment, an electronic apparatus includes a cabinet having an outer surface and an inner surface, a plurality of operation button display portions formed on the outer surface of the cabinet, a touchpad which is provided on the inner surface of the cabinet in confrontation with the operation button display portions and configured to detect an input operation of the operation button display portions, a plurality of light sources which are disposed on the inner surface side of the cabinet in confrontation with the operation button display portions and illuminate the respective operation button display portions, a light source controller which is configured to change an illumination state of the light sources for a predetermined time in response to the input operation and thereafter returns the illumination state to an original illumination state.
摘要:
According to one embodiment, an electronic device includes a first main unit having a surface thereof provided with a display panel, a second main unit having a surface thereof provided with another display panel, a hinge mechanism coupling the first and second main units, and two operation buttons arranged symmetrical with respect to a center line passing through the respective centers of the first and second main units.
摘要:
Backlight of a backlight device (3) attached to a liquid crystal panel device (2) is created by a multitude of light emitting diodes, and light emitted from each light emitting diode is modulated by position information indicating the position of a display screen (21A). The light receiving device (4) receives the backlight, modulates it, takes out the position information and detects the position on a display screen (21A) based on the position information.
摘要:
According to one embodiment, an electronic device includes a cabinet having an upper case and a lower case. The upper case has an upper wall, and a keyboard mounting section is provided on the upper case. The cabinet incorporates a main board. A connector is provided on the top surface of the main board. A sub-board equipped with a digital tuner unit composed of a plurality of components including a first component and a second component is inserted in the connector. The first component has the greatest height of all of the components and is mounted on the top surface of the sub-board so as to face the upper wall outside the longitudinal direction of the keyboard mounting section.
摘要:
An electronic apparatus includes: a housing including first and second covers, the first cover having a sound-radiating opening and a rib formed in a perimeter shape and disposed on an inner surface of the first cover to surround the opening, the second cover being disposed opposite to the first cover and having a support portion protruding toward the first cover; and a speaker unit disposed in the housing, the speaker including a cone and a frame that supports a circumferential portion of the cone. The frame of the speaker unit is supported on the support portion of the second cover and held between the rib of the first cover and the support portion. The frame, the cone, the first cover and the rib define a first chamber that communicates with the opening of the first cover.
摘要:
An optical disc has a spiral standard locus. A groove is formed as a wobble which meanders or wobbles along the standard locus. The wobble is determined from a wobble signal. The wobble signal is modulated such that a DC offset of the wobble signal is cancelled by a symbol unit of predetermined data. Therefore, in tracking servo upon reproducing, the position of an optical pickup can be converged onto the amplitude center of the wobble in a short time.
摘要:
An optical disc has a spiral track. A record mark is formed along the track. Wobble, which is the meandering of the track, is determined from a wobble signal. On the optical disc, the record mark is formed with it displaced according to the wobble signal. The wobble signal is modulated such that a DC offset of the wobble signal is cancelled by a symbol unit of predetermined data. Therefore, in tracking servo upon reproducing, the position of an optical pickup can be converged onto the amplitude center of the wobble in a short time.
摘要:
A semiconductor integrated circuit device has a first LT fuse group for storing replacement information used in a memory array; a second LT fuse group for storing confirmation information to confirm whether the first LT fuse group has accurately stored the replacement information; and an input/output port for outputting information PI actually stored in the first LT fuse group and information CI actually stored in the second LT fuse group to an external memory tester. The first and second LT fuse groups are fabricated according to the same conditions, and the laser input to the respective group is set to be under the same conditions.