Fujitsu Corporation

Eiichi Ebihara

Kouji Maeda

Shigeyoshi Nakamura

Naotoshi Katahara

Hiroyuki Kaneda

Kazuhiro Tamada

Keizou Ueno

Takamitsu Aoki

Kouki Ishihara

Masayuki Horii

Hiroshi Yoshimura

Akihiko Makita

Akihisa Sota

Toshio Konaka

Ryuichi Onda

Takashi Aikawa

Moriaki Sugimoto

A disk unit for writing data in a given position on a disk and reading data written in the given position on the disk by using a head includes a temperature control unit for controlling a temperature of a body of the disk unit by heating or cooling the body of the disk unit. The disk unit detects the temperature dependence of a characteristic of a rotary mechanism unit including at least a spindle motor and a voice coil motor, based on position information included in servo information reproduced from the head or a value of a current of the spindle motor, and compares the detected characteristic with a predetermined value, and operates the temperature control unit, when the characteristic has been degraded, so as to suppress the degradation of the characteristic. A temperature control method, of the disk unit, by operating an MPU, or the like, of a computer is provided.

Disk unit and temperature control method thereof

A disk unit, such as a magnetic disk unit, has a temperature sensor, a humidity sensor, a heater, a Peltier element, etc. The disk unit heats and cools in accordance with temperature and humidity. The disk unit has a double-structure of outline comprising a first outline and a second outline surrounding said first outline, so that an internal environment is isolated from an external environment.

Disk unit and information processing apparatus

A color image is scanned in the matrix direction by the number of colors calculating unit and the number (A) of colors of different full color pixel values is counted. In this instance, each time the number (A) of colors is counted up, a pallet forming unit sequentially stores the full color pixel values as representative colors into entries and forms a subtractive color pallet. When the number (A) of colors exceeds the number (n) of entries of the subtractive color pallet, a transfer format discriminating unit counts the number (N) of transfer pixels up to the end of one-preceding row and compares a transfer data amount by a full color format with a transfer data amount by a pallet format in the number (N) of transfer pixels, thereby allowing the data transfer by the color format of a smaller one of the transfer data amounts to be executed by a data transfer unit.

Color image transfer processing apparatus and method, color image

A process discriminating unit allows an optimum converting process among a first magnification processing unit, a second magnification processing unit, a first reduction processing unit, a second reduction processing unit, and a third reduction processing unit to be executed on the basis of a conversion magnification (K), a resolution (D), and an image size. Particularly, each of the second magnification processing unit, first reduction processing unit, and second reduction processing unit magnifies an original image to a virtual image of a dot size obtained by magnifying a target image by 2 or 4 by an interpolation based on a simple repetition by a nearest neighborhood method and, after that, reduces to the target image in which the pixel value is obtained by averaging a plurality of pixels corresponding to one target pixel of the virtual image.

Apparatus and method for converting image size and recording medium

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Kawasaki, Japan

Eiichi Ebihara