摘要:
According to one embodiment, an information processing apparatus includes an optical disc drive, a measuring module in the optical disc drive, and a measurement value reception module. The measuring module is configured to measure a value related to an operation of a predetermined motor in the optical disc drive, which is executed during a time period of power-up of the optical disc drive. The measurement value reception module is configured to receive a measurement value related to the operation of the predetermined motor from the optical disc drive in response to an event of being requested to turn off the power of the optical disc drive, and to store the received measurement value in a storage device.
摘要:
According to one embodiment, an information processor includes an optical disc drive, a recorder, and a determination module. The optical disc drive includes a loading mechanism that loads and ejects an optical disc. The recorder obtains state information indicating the operating state of the loading mechanism to record the state information. The determination module determines that, when a value related to failure prediction of the loading mechanism satisfies a predetermined condition, there is a risk of failure in the loading mechanism. The value is calculated from a combination of a plurality of indices contained in the state information.
摘要:
According to one embodiment, an information processor includes an optical disc drive, an acquiring module, a storage module, and a determination module. The acquiring module acquires identification information that uniquely identifies an optical disc loaded in the optical disc drive based on information read from the optical disc. The storage module obtains information related to failure analysis of the optical disc contained in state information indicating reading state or writing state upon reading from or writing to the optical disc, and stores the information related to failure analysis in association with the identification information. The determination module calculates values each indicating a level of failure of the optical disc based on pieces of information related to failure analysis of the optical disc stored until just recently in association with the identification information and, when the values satisfy a predetermined condition, determines that there is a risk of failure in the optical disc.
摘要:
According to one embodiment, if a nonvolatile memory which stores format information of an HDD, a CD/DVD, an FDD and a USB storage device, and the USB storage device are connected, the drive letter of the USB storage device is virtually assigned as FDD or HDD on the basis of the format information.
摘要:
According to one embodiment, an information processing apparatus includes a main body, connection ports to which external storage devices are detachably connectable, a nonvolatile memory which stores mode designation information items which correspond to the connection ports and designate whether each of the external storage devices connected to the associated connection ports is to be handled as a hard disk drive or a flexible disk drive, a drive number assignment unit which assigns, in a case where the external storage device is connected to at least one of the connection ports, one of a first drive number which designates the hard disk drive and a second drive number which designates the flexible disk drive to the external storage device, based on the mode designation information corresponding to the at least one of the connection ports.
摘要:
When power is turned on, a speaker volume control section obtains the volume of surrounding sound from a microphone and then determines the output volume of a speaker from the volume of surrounding sound. The speaker volume control section then displays the value of the output volume of the speaker thus determined on an LCD. After that, the speaker volume control section monitors whether or not an operation of changing the speaker volume is performed and, when such an operation is not performed for a predetermined period of time, presents the determined speaker volume to a sound controller. When an operation of changing the speaker volume is performed, the speaker volume control section presents a volume specified by the user to the sound controller.
摘要:
According to one embodiment, if a nonvolatile memory which stores format information of an HDD, a CD/DVD, an FDD and a USB storage device, and the USB storage device are connected, the drive letter of the USB storage device is virtually assigned as FDD or HDD on the basis of the format information.
摘要:
According to one embodiment, if a nonvolatile memory which stores format information of an HDD, a CD/DVD, an FDD and a USB storage device, and the USB storage device are connected, the drive letter of the USB storage device is virtually assigned as FDD or HDD on the basis of the format information.
摘要:
A interferometer type polarization beam combiner and splitter, which can combine or split polarized light over a wide band, is provided. The interferometer type polarization beam combiner and splitter includes: an optical splitter; an optical coupler; an optical path length difference imparting unit, which includes a plurality of optical waveguides arranged between the optical splitting unit and the optical coupling unit; one or two input/output ports connected to the optical splitter; and two input/output ports connected to the optical coupler. A half-integer of a wavelength of λc is set as a normalized phase difference, for the optical path length difference imparting unit, between two polarization states, and means for generating a difference in refractive index dispersion is provided between the optical waveguides of the optical path length difference imparting unit, so that the change rate of the transmittance with respect to wavelength is suppressed for the two polarization states.
摘要:
A magnetic sensor having first to fourth magneto-resistive elements, where the first and second magneto-resistive elements are connected at respective ends through a first connecting portion in a central region, and the third and fourth magneto-resistive elements are connected at respective ends through a second connecting portion that is parallel to the first connecting portion. The first and fourth magneto-resistive elements are connected at respective other ends through a third connecting portion, and the second and third magneto-resistive elements are connected at respective other ends through a fourth connecting portion. Depending on an external signal magnetic field, resistance values of the first and third magneto-resistive elements change in a same increasing or decreasing direction, whereas resistance values of the second and fourth magneto-resistive elements change in an increasing or decreasing direction opposite to the direction of the first and third magneto-resistive elements.