Abstract: A printer detects density of a toner pattern on an intermediate transfer belt, operates a differential value for the detection value, and compares the differential value with a threshold value. If fluctuation of detection values is great and there are detection values of which differential values exceed the threshold value, those detection values are assumed to contain noise due to abnormality of the shape on the belt, and the detection values in such a range are corrected using curve approximation. A tone correction table is updated using the corrected detection values.

Abstract: For achievement of a reduction in size, a slider unit comprises a mounting base 1, a rail 2 fixed to a mounting face 1a of the mounting base 1, a slide table 3 moving along the rail, position detection means for detecting the position of the slide table 3, and a driving system for moving the slide table 3. The mounting face 1a of the mounting base 1 has a mounting recess 14 formed therein. A sensor board 16 on which a Hall element 16a is mounted is installed in the mounting recess 14. The slide table 3 has a permanent magnet 19 attached to the face thereof facing the mounting face 1a. The permanent magnet 19 and the Hall elements 16a form the position detection means.

Abstract: A small slider unit having a size effectively reduced in the longitudinal direction is equipped with a rail 22; a slide table 23 moving on the rail 22; a screw shaft 26 coupled to the slide table 23 and situated parallel to the rail 22; a motor M for rotating the screw shaft 26; a coupling member 31 for providing the coupling between a rotating shaft 32 of the motor M and the screw shaft 26; and a bearing 29 supporting the screw shaft 26. The screw shaft 26 is rotated by driving the motor M, whereupon the rotation of the screw shaft 26 moves the slide table 23 in the axis direction of the rail 22. The screw shaft 26 has a holding portion 27a, and the bearing 29 is held between the holding portion 27a and the coupling member 31.

Abstract: The present invention aims to provide an image forming apparatus and the like that perform a highly-accurate tone correction in a relatively short time and includes the following: a pattern former, with use of each image forming unit, on a sheet, forming tone patches in the main or sub scanning direction (41k,c,y,m) and aligning markers, which indicate positions of the tone patches, in the same direction as the tone patches (42k,c,y,m); a pattern reader reading the sheet with the tone patches and markers formed thereon; a coordinate determiner determining coordinates of the tone patches in the direction of the aligned tone patches based on the read markers (42k,c,y,m); a density determiner determining densities of the tone patches (41k,c,y,m) read based on the determined coordinates; and an updating part updating the tone correction table based on relationships between the determined densities and tone levels.

Abstract: A tandem-type color image forming apparatus forms a toner pattern and toner markers on an intermediate transfer member. Tone levels in the toner pattern vary in a sub scanning direction, and the toner markers which are a same color with the tone pattern each oppose, in a main scanning direction, a different one of the tone level portions in the toner pattern, each tone level portion representing a different one of the tone levels. Positions of the toner markers in the sub scanning direction are determined to detect densities in the toner pattern corresponding to the determined positions. Tone of image data is corrected in an image formation based on a relationship between the densities and the tone levels corresponding to the determined positions.

Abstract: A multi-port coupler for coupling an pumping light source to a cladding pump fiber for optical amplification, includes a central signal fiber and a plurality of pumping fibers arranged around the central signal fiber, the central signal fiber and the plurality of pumping fibers being unified and a front side is reduced in diameter, wherein an emitted light confining waveguide part is provided around a core of the signal fiber located at the center, and the emitted light confining waveguide part whose outer diameter is larger than that of the core has a higher refractive index than a cladding and a lower refractive index than the core and the emitted light confining waveguide part is formed continuously from a splicing point of the cladding pump fiber to a coupler front end branched into multiple fibers.

Abstract: A video playback apparatus includes a data-storage unit storing video data and a first video-time stamp, an information-storage unit storing first-associated information and a first-associated-time stamp, a unit acquiring plural playback-video data and plural second-video-time stamps of the plural playback-video data from the data-storage unit, and acquiring second-associated information of the playback-video data and a second-associated-time stamp of the second-associated information from the information-storage unit, a unit measuring information amounts of the playback-video data of the second-video-time stamps to obtain a smallest information amount of the information amounts, a unit detecting a time-stamp section corresponding to the smallest information amount, a unit changing the second-associated-time stamp to generate a changed time stamp, the second-associated information being presented in the time-stamp section by the changed time stamp, and a unit presenting the second-associated information toget

Abstract: An end face structure of an optical fiber includes a coreless fiber fused to an emitting end face of the fiber optical fiber and a coating material disposed around at least the coreless fiber, a refractive index of the coating material being higher than a refractive index of the coreless fiber.

Abstract: An image forming apparatus performs image stabilization after a printed page count exceeds a first threshold, if either an end of a job or a mode switch from monochrome mode to color mode has been detected. Even if neither the end of the job nor the mode switch from monochrome mode to color mode has been detected, the image forming apparatus performs image stabilization if the printed page count exceeds a second threshold that is larger than the first threshold.

Abstract: Differing ratios of the amount of light from light source LD2 to the amount of light from light source LD1 are provided. An image pattern for adjustment that includes, for each color, an area made up of isolated dots by light source LD1 and an area made up of isolated dots by light source LD2, is printed for each ratio. In a copier, a density of each area is detected, a ratio at which a difference between the density of an area of isolated dots by light source LD1 and the density of an area of isolated dots by light source LD2 is smallest is decided as an adjustment ratio, and control is performed such that light sources LD1 and LD2 emit light at the adjusted ratio.

Abstract: A printer detects density of a toner pattern on an intermediate transfer belt, operates a differential value for the detection value, and compares the differential value with a threshold value. If fluctuation of detection values is great and there are detection values of which differential values exceed the threshold value, those detection values are assumed to contain noise due to abnormality of the shape on the belt, and the detection values in such a range are corrected using curve approximation. A tone correction table is updated using the corrected detection values.

Abstract: An image forming apparatus comprises: a reader to read image; an output part to output the image; an information giving part to give additional information to the image before the image is outputted by said output part; an output controller to make said output part output a plurality of test patterns for output level correction of additional information in different output levels; a data calculator for output level correction, to calculate data for output level correction of said additional information based on reading results drew by said reader from said outputted test patterns for output level correction of additional information; and an output level corrector to correct an output level of said additional information based on said calculated data for correction.

Abstract: A document searching apparatus includes an input unit that inputs a search query for conducting a search in a structured document, the structured document being obtained by expressing elements included in a document in a hierarchical manner; a query converting unit that converts a query sentence constituting the search query and a search target element of the query sentence according to a predetermined rule so as to generate a new search query; a document searching unit that searches the structured document by using the new search query; and a search-result presenting unit that presents a result of the search.

Abstract: An optical pumping device is provided in which a multi-core fiber obtained by bundling up a plurality of optical fibers, which are input ports, and a double clad fiber for optical pumping are spliced through a bridge fiber composed of a double clad fiber having a tapered shape. Accordingly, it is possible to efficiently couple signal light and pumping light to the double clad fiber for optical pumping.

Abstract: An image forming device for forming an image on an image carrier using a different grayscale reproduction method for each of two or more different attributes contained in portions of the image. The image forming device forms a different standard pattern in one-to-one correspondence with each different attribute contained in the image portions, using a grayscale reproduction method used for reproducing image portions containing the attribute, detects density of each standard pattern formed by the standard pattern forming unit, sets, for each different attribute, a condition for correcting grayscale of the image portions containing the attribute, in accordance with the detected density, and corrects grayscale of the image portions in accordance with each condition set by the correction condition setting unit.

Abstract: A multi-port coupler for coupling an pumping light source to a cladding pump fiber for optical amplification, includes a central signal fiber and a plurality of pumping fibers arranged around the central signal fiber, the central signal fiber and the plurality of pumping fibers being unified and a front side is reduced in diameter, wherein an emitted light confining waveguide part is provided around a core of the signal fiber located at the center, and the emitted light confining waveguide part whose outer diameter is larger than that of the core has a higher refractive index than a cladding and a lower refractive index than the core and the emitted light confining waveguide part is formed continuously from a splicing point of the cladding pump fiber to a coupler front end branched into multiple fibers.

Abstract: An acquiring unit acquires a first search criterion from outside. A first searching unit extracts a first search result that satisfies the first search criterion from a storing unit that stores information to be searched. A first output unit outputs the first search result to a first output device. A changing unit changes the first search criterion to a second search criterion based on a predetermined condition. A second searching unit extracts a second search result that satisfies the second search criterion from the storing unit. A second output unit outputs the second search result to a second output device that is different from the first output device.

Abstract: A video content viewing support system includes unit acquiring video content and text data corresponding to the video content, unit extracting viewpoints from the video content, based on the text data, unit extracting, from the video content, topics corresponding to the viewpoints, based on the text data, unit dividing the video content into content segments including first segments and second segments for each of the extracted topics, the first segments corresponding to a first viewpoint included in the viewpoints, the second segments corresponding to a second viewpoint included in the viewpoints, unit generating a thumbnail and a keyword for each of the content segments, unit providing the first segments and at least one of the thumbnail and the keyword corresponding to one of the first segments for each of the first segments, and unit selecting at least one of the provided first segments.

Abstract: System includes unit acquiring video content from video source, unit acquiring text data corresponding to video content from text data source, unit extracting topics from video content based on text data, unit dividing video content into video content segments for each of topics, unit generating one of first thumbnail image, first keyword and first key sentence, unit storing cue words corresponding to video portions, unit comparing text data with cue words to specify first video portion of video portions, first video portion corresponding to first cue word of cue words, unit concealing portion of one of second thumbnail image, second keyword and second key sentence and correspond to specified video portion and generate concealed portion, unit providing, after concealing one portion, combination of each of video content segments and one of second thumbnail image, second keyword and second key sentence, to provide combinations, and unit selecting one of combinations manually.

Abstract: An image forming apparatus of the invention includes an image carrier, an exposure device performing exposure for forming a toner image on a surface of the image carrier and having at least a first exposure light source and a second exposure light sources a sensor for detecting specified patterns, which are formed on the image carrier at a specified time with use of the first and second exposure light sources, a storing unit for storing a correlation, which is attained from a detection result by the sensor, between the first and second exposure light sources, and a controller for controlling the first and second exposure light sources based on the correlation.