Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes acquiring first sound data collected by a first microphone and second sound data collected by a second microphone during traveling of a vehicle in which the first microphone is provided in vicinity of a front wheel and the second microphone is provided in vicinity of a rear wheel; and detecting a cavity under a road surface where the vehicle has traveled based on a difference between the acquired first sound data and the acquired second sound data.

Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes acquiring first sound data collected by a first microphone and second sound data collected by a second microphone during traveling of a vehicle in which the first microphone is provided in vicinity of a front wheel and the second microphone is provided in vicinity of a rear wheel; and detecting a cavity under a road surface where the vehicle has traveled based on a difference between the acquired first sound data and the acquired second sound data.

Abstract: An animal habitat value evaluation system includes: a terminal device; and an information processing device, wherein the terminal device includes: a first memory; and a first processor configured to: receive an input of an evaluation target region; transmit the input to the information processing device; and display information regarding a display screen from the information processing device, and the information processing device includes: a second memory; and a second processor configured to: receive and accept the evaluation target region from the terminal device; refer to a habitat information database storing animal habitat information in each region; calculate an animal-derived value in a case of determining that an animal inhabits in the received evaluation target region; generate a display screen in which the calculated animal-derived value and the evaluation target region are displayed in association with each other; and transmit the information regarding the generated display screen to the terminal

Abstract: A habitat determination method includes: calculating, by a computer, a first indicator, which is a number of trees per predetermined area with respect to a tree which allows tree mammals to inhabit; and determining, by the computer, according to the calculated first indicator and a characteristic of each tree mammal, whether or not each tree mammal is inhabitable.

Abstract: A prediction apparatus includes one or more memories and one or more processors configured to select each of specific periods for each of a plurality of explanatory variables on the basis of a correlation between actual values of each of the plurality of explanatory variables aggregated for each period and actual values of an objective variable aggregated for each period, the plurality of explanatory variables relating to the objective variable, determine a plurality of regression coefficients of a regression equation relating to the objective variable on the basis of each specific actual value of the plurality of explanatory variables in each of the selected specific periods, perform calculation of a predicted value of the objective variable by using the regression equation having the determined plurality of regression coefficients, and output the calculated predicted value.

Abstract: A recording method for a disk device includes the following steps. Sequential data is written into the medium along the track in a predetermined radial direction. Information indicating an end position along the track where the end of the sequential data is written into is stored. The information is read when additional sequential data is to be written into the medium. The additional data is written from a position along the track next to the end position indicated by the information in the predetermined radial direction. The information is updated so as to indicate an end position along the track where the end of the additional sequential data is written into.

Abstract: A glide head includes a slider configured to float by airflow generated by rotation of a recording medium and detects a contact between the recording medium and the slider. The slider includes a floating rail. The floating rail includes a surface facing the recording medium and including an obtuse-angled corner. The floating rail is configured such that a rear end thereof is formed into a wedge shape and a thickness thereof is maximized at the obtuse-angled corner.

Abstract: An information storage device includes: a disk-like rotatable recording medium; and a head reproducing information from and/or recording information into the recording medium. The device further includes: a fixed portion having and turns around a turning axis extending in the same direction as a rotation axis of the recording medium; and a moving portion holding the head, supported by the fixed portion, and movable relative to the fixed portion in a direction approaching and separating from the rotation axis. The device further includes: a pin fixed to and projecting from the moving portion; and a guide having a wall on which the pin abuts and slides as the moving portion turns, and restricting an orbit of the pin by a form of the wall to a predetermined orbit that extends to a leading side of the moving portion as the pin moves toward an inner periphery of the recording medium.

Abstract: A recording method for a disk device includes the following steps. Sequential data is written into the medium along the track in a predetermined radial direction. Information indicating an end position along the track where the end of the sequential data is written into is stored. The information is read when additional sequential data is to be written into the medium. The additional data is written from a position along the track next to the end position indicated by the information in the predetermined radial direction. The information is updated so as to indicate an end position along the track where the end of the additional sequential data is written into.

Abstract: The present invention relates to an information recording device that writes data onto a recording medium having a recording density based on the number of write/erase cycles reasonably guaranteed to not produce errors in adjacent tracks. The recording medium includes a first storage region where the number of data write/erase cycles are restricted; and a second storage region where the number of data write/erase cycles are not restricted.

Abstract: A data writing method to write data on a disk in a disk device. The data is written in one radial direction. The method includes detecting a first deviation amount from a center in a current track and sector in the direction of a track on which data was previously written. A second deviation amount from the center in the current track and sector in the direction of a track on which data will be subsequently written is also detected. Data is written on the current track when the first deviation amount is equal to or smaller than a first threshold and the second deviation amount is equal to or smaller than a second threshold.

Abstract: A magnetic disk device performs yaw angle correction of a magnetic head is compact, and performs yaw angle correction without changing the arm length. A suspension is rotatably provided on the tip of an arm which is rotated by a rotating actuator and an interconnection device is provided, one end of which is connected to a fixed shaft fixed on a housing, the other end of which is connected to a rotating shaft of the suspension, and which, by means of rotation of the arm, causes rotation of the suspension about the rotating shaft in the direction opposite the direction of rotation of the arm.

Abstract: A magnetic pattern transfer method is disclosed. A magnetic pattern transfer master having a plurality of magnetic portions preformed with predetermined magnetic patterns is brought in proximity to a magnetic recording medium having a magnetic film to record the magnetic information, and a magnetic field is applied from an external source thereby to transfer the magnetic patterns to the magnetic recording medium. In order to improve the closeness between the magnetic film of the magnetic recording medium and the magnetic portions of the magnetic pattern transfer master, the magnetic patterns are transferred to the magnetic film of the magnetic recording medium during the process of fabricating the magnetic recording medium.

Abstract: A process for fabricating a patterned medium including a dot-forming step for forming a dot array constituted by sample magnetic dots having a predetermined size such as a single domain particle size determined theoretically from the magnetic metal thin for a sample medium having a magnetic metal film formed with the initial conditions; a demagnetization step for AC-demagnetizing the dot array; a ratio measurement step for measuring the ratio of single magnetic domains by observing the magnetic pattern of each of the sample dots after the AC-demagnetization; and an adjustment step for determining conditions of the sputtering apparatus for forming a solid state magnetic metal thin film by adjusting the film-forming conditions such that the ratio of the single magnetic domains equals to or exceeds a predetermined value.

Abstract: The present invention provides a master disk that can easily be brought into contact with and separated from a magnetic recording medium, and can accommodate foreign matters. This master disk transfers a predetermined magnetic pattern onto a magnetic recording medium that can record magnetic information. In the master disk, there are a magnetic pattern formation region in which the magnetic pattern is formed, and a blank region in which the magnetic pattern is not formed. A concave portion for accommodating foreign matters is formed in at least one part of the blank region.

Abstract: A master medium is utilized in a magnetic transfer apparatus. The master medium is superposed on a blank magnetic medium. A predetermined magnetic field is then applied to the master medium. The magnetic flux leaks from the master medium between adjacent magnetic pieces on the master medium. The leaked magnetic flux acts on the magnetic medium. The magnetization is accordingly established on the surface of the magnetic medium. Here, spaces can be reduced between the adjacent magnetic pieces on the master medium. Magnetization of a sufficient intensity can reliably be established on the magnetic medium.

Abstract: A method for manufacturing a master used for a magnetic transfer, the method including the following steps: A first-master manufacturing step of manufacturing a first master including a predetermined magnetic pattern based on magnetic information; a magnetic-pattern transferring step of transferring the magnetic pattern to a magnetic recording medium by using the first master; an error confirming step of confirming an amount of a transfer error between the magnetic pattern transferred to the magnetic recording medium and the predetermined magnetic pattern; and a second-master manufacturing step of manufacturing a second master as an authentic master based on a correction magnetic pattern so formed as to offset the amount of the transfer error.

Abstract: An optical disk apparatus includes an objective lens system for producing a beam spot on an optical disk, a slider movable relative to the optical disk, and a fine tracking mechanism for shifting the beam spot in a radial direction of the optical disk. The objective lens system is composed of a first lens and a second lens. The second lens is held by the slider and disposed closer to the optical disk than the first lens is. The tracking mechanism shifts the second lens in the radial direction of the optical disk for tracking control.

Abstract: A writer for head positioning information, or a so-called servo track writer allows the read gap to follow a track which has been established on a recording medium or disk. As long as the read gap keeps following the existing track, the write gap is allowed to move along a path extending in parallel with the existing track. The write gap is utilized to write head positioning or servo information into the recording medium along the path. Even when the recording medium suffers from vibration or the like, the read gap can follow the track. The head positioning information can thus be written into the recording medium so as to establish a head positioning pattern at a higher positional accuracy.

Abstract: A magnetic-pattern transferring method is a method for transferring a magnetic pattern to a magnetic recording medium. The method comprises steps as follows. In a master transferring step, a magnetic field is applied to a master placed close to the magnetic recording medium. The magnetic field excites a magnetic layer having a pattern patterned on the master according to the magnetic pattern. Thereby, the pattern of the magnetic layer is transferred to the magnetic recording medium. In a pattern-difference measuring step, a magnetic condition of the magnetic recording medium is measured so as to measure a magnetically different part between the pattern transferred to the magnetic recording medium and the magnetic pattern. In a magnetic transferring step, a pattern transfer is performed to the magnetic recording medium by using the master while applying the magnetic field so as to correct a magnetic condition of the magnetically different part.