摘要:
A magnetic recording device includes a write head, a perpendicular magnetic recording medium, a recording-current generating circuit, and a setting circuit. The perpendicular magnetic recording medium includes a plurality of tracks that includes a recording track. The recording-current generating circuit generates a recording electric current. The write head supplied with the recording current writes a recording data pattern on the recording track. The setting circuit sets a value of the recording electric current such that the value of the recording electric current decreases as a magnitude of side erase effect on at least one track of the tracks adjacent to the recording track increases.
摘要:
A projection type display device includes a image displaying element 20 having image display areas 20a, 20b for displaying a plurality of images respectively, a projection optical system 30A having an emitting part for emitting projection light flux to the image display areas 20a, 20b of the image displaying element 20, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas 20a, 20b of the image displaying element 20. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.
摘要:
Provided is a numerical control method in an apparatus having a C-axis control function for numerically controlling a spindle in the direction of rotation. The method includes providing a first G-code word (Gg1) for achieving agreement between axis control characteristic values of a C-axis motor control system and axis control characteristic values of a feed-axis motor control system, as well as a second G-code word (Gg2) for restoring axis control characteristic values changed by the first G-code word to original values, making spindle control characteristic values agree by commanding the first G-code word before controlling the C axis at the same time as the feed axis, and restoring to original values the spindle control characteristic values changed by the first G-code word by commanding the second G-code word after simultaneous control of the C axis and feed axis ends.
摘要:
An optical pickup system in which a tracking objective lens is moved by opposed magnetic coils attached to the lens along the axis of the lens and in the transverse direction across the recording tracks. A servo system on a fixed base supplies current to the movable coils by lead wires which are connected at the middle to a fixed vibration absorbing material, such as polyurethane foam.
摘要:
A numerical controller which has a plurality of command systems and controls a machine having a plurality of spindles, and in which a program can be prepared without taking account of the correspondence between the command systems and the spindles. The numerical controller has n number of command systems and controls a machine tool or the like that has n number of spindles and a required number of other axes. A signal indicative of the correspondence between each command system and a spindle is inputted from external signal input means to a selecting/switching section. The selecting/switching section selects, among the spindles 1 to n, a spindle of a destination such as a command S1 for spindle control outputted by each command system in response to the input signal by software processing. The position of a tool or a workpiece to be machined can be changed in accordance with a change of the correspondence between the command systems and the spindles.
摘要:
A specified-data saving means saves a data specified by a data name from a battery-backed-up volatile memory to a nonvolatile memory not requiring battery backup. At the same time, a generation management means stores the data name and time information in the nonvolatile memory, together with the saved data. An individual-data restoring means selects data from among the data stored in the nonvolatile memory based on a specified data name and time information and restores the selected data to the volatile memory.
摘要:
A multi-disk player system including a housing, a playing mechanism provided within the housing, a magazine that is capable of accommodating a plurality of disks in an orderly manner and which is provided detachably with respect to the housing, a magazine loading detector for detecting the loading of said magazine within the housing, and a disk pickup and transport device that selects a desired disk from the magazine and transports the same to the play position. The magazine loading detector is comprised of a pair of push levers that are positioned in the deepest magazine loading area and are in engagement with the magazine, a pair of sensor switches capable of engaging with the push levers. The push levers are spaced apart from each other by the distance corresponding to the thick portion of the magazine. The system may include a disk container comprising a plurality of trays on which disks are to be placed, and the magazine for accommodating the trays. The magazine is provided with partitions that limit the vertical position of the trays. The height of the underside of each partition is set at a value equal to that of the top of the disk placed on the tray below each partition.
摘要:
Disclosed is a disk holder adapted to be inserted and fitted into a loading means of a disk player. The disk holder supplys a disk to the disk player in response to the operation of the player. The disk holder includes a housing for holding a plurality of disks, a plurality of plate-shape trays each loading each of the disks on each principal face thereof. Each of the trays is provided ejectable from the retractable in the housing along the principal face. The disk holder further includes flexible members positioned confronting with each of the disk loading face and projecting from the principal face of neighboring tray.
摘要:
A multi-disk player system comprising a housing, a playing mechanism provided within the housing, a magazine that is capable of accommodating a plurality of disks in an orderly manner and which is provided detachably with respect to the housing, a magazine loading detector for detecting the loading of said magazine within the housing, and a disk pickup and transport device that selects a desired disk from the magazine and transports the same to the play position. The magazine loading detector is comprised of a pair of push levers that are positioned in the deepest magazine loading area and are in engagement with the magazine, a pair of sensor switches capable of engaging with the push levers. The push levers are spaced apart from each other by the distance corresponding to the thick portion of the magazine. The system may include a disk container comprising a plurality of trays on which disks are to be placed, and the magazine for accommodating the trays. The magazine is provided with partitions that limit the vertical position of the trays. The heights of the underside of each partition is set at a value equal to that of the top of the disk placed on the tray below each partition.