Fujitsu Corporation

Nippon Steel Corporation

Nippon Steel Chemical Co., Ltd.

Keiichi Saito

Akio Suzuki

Daisuke Hori

Tamio Amagai

Yoshio Tabata

Nobuhiko Motoyama

Hiroshi Shibuya

Yukako Murai

Chikatsu Kato

Toshihiro Yamamoto

Norio Kanemitsu

Masao Kimura

Minoru Wada

Kimichika Tanoue

An image reading apparatus has an automatic document feeder and a flat bed, wherein a backing part which is read so as to ensure that a leading edge of an original is read is configured to have a white area and a gray area, either the white area or the gray area being read depending on a type of the original, and the original being read subsequently.

Image reading apparatus, image reading method, whiteness level correcting method and whiteness level generating method

A cartridge transferring robot for use in a library apparatus which is capable of improving the accuracy of the cartridge inserting/extracting angle of a hand mechanism and further of ensuring the positional accuracy of the tip portion of the hand mechanism sufficient for direct insertion and extraction of a cartridge into/from a drive unit. In the present invention, for these purposes, a tilt mechanism for adjusting the angle of the cartridge inserting/extracting direction with respect to a horizontal plane is composed of a tilt base for supporting a picker section so that the picker section is swingable around a supporting shaft located on a picker section front surface side facing a place for insertion or extraction of the cartridge, and a swinging drive mechanism disposed on the rear side of the picker section for making the picker section swing around the supporting shaft with respect to the tilt base. Further, this invention is for transferring cartridges among a storage unit, a cartridge entry/exit station and a drive unit within a library apparatus storing a large number of cartridges such as magnetic tape cartridges and optical disk cartridges.

High precision cartridge transferring robot for library apparatus

A cartridge transferring robot for use in a library apparatus which is capable of certainly transferring a plurality of types of cartridges (media) to meet various needs from the users. In the present invention, for this purpose, in case where a plurality of types of cartridges are handled within the library apparatus, a picker section includes a type identifying mechanism to identify the type of the cartridge held in the picker section in a state of being gripped by a hand mechanism. Further, this invention is for transferring cartridges among a storage unit, a cartridge entry/exit station and a drive unit within a library apparatus storing a large number of cartridges such as magnetic tape cartridges and optical disk cartridges.

Cartridge transferring robot for library apparatus

An image reading apparatus suitable for use as a facsimile apparatus, a coping apparatus or the like, and a method for detecting open/close of an original feeding unit in the image reading apparatus. The image reading apparatus has an original feeding unit openable and closable for feeding an original set, a light radiating unit for radiating lights on the original fed, an image sensor disposed on a feeding route for detecting an image of the original on the basis of reflected light from the original, a binary information converting unit for converting detecting image information from the image sensor into binary information, and a data processing unit using the binary information from the binary information converting unit as read image information on the occasion of image reading, while using it as information used to detect an open/close state of the original feeding unit on the occasion excepting the image reading, thereby detecting an open/close state of the original feeding unit without causing an increase of the number of parts of the apparatus.

Image reading apparatus and a method for detecting open/close of an

A cartridge transferring robot which is capable of providing multiple functions to a hand mechanism to allow the direct insertion/extraction of a cartridge between a deck and the hand mechanism. The cartridge transferring robot according to the present invention has a hand mechanism comprising a pair of upper and lower hand members attached to a hand base to be slidable vertically, a spring for biasing the hand members in a direction of closing directions of gripping the cartridge, a pair of upper and lower cam followers attached to the hand members, a cam disposed between the cam followers for adjusting the separation between the cam followers to cause the hand members to take opening and closing actions against the biasing force of the spring, and a motor for rotationally driving the cam. This invention is applicable to a library apparatus storing a large number of cartridges such as magnetic tape cartridges and optical disk cartridges.

Cartridge transferring robot for library apparatus, and library apparatus

A data transfer method and apparatus for an image reading apparatus suitably used with an image scanner is improved in that a transfer line apparatus is simplified in construction and produced with a reduced cost by an improved transferring technique of data. The data transfer apparatus is incorporated in an image reading apparatus including first and second optical image reading units and comprises a storage section for storing data from a first operating one of the first and second optical image reading units from which paper image information is to be read out later, a first data transfer section for successively transferring, by way of a data transfer line, data from the first operating image reading unit, and a second data transfer section for successively transferring, after the data from the first operating image reading unit have been transferred by the first data transfer means, the data from the other later operating image reading unit stored in the storage means at a rate higher than the data transfer rate at which data are transferred by the first data transfer means by way of the data transfer line.

Data transfer method and data transfer apparatus for image reading

The invention provides a white level information correction apparatus for an image reading apparatus suitably used as an image scanner, which is improved in that analog to digital conversion can be performed effectively for originals of different ground colors with a high degree of accuracy. In the image reading apparatus, image information of a paper sheet being transported along a paper transport path is optically read at a fixed location of the paper transport path using an optical image reading unit and analog data obtained by the optical image reading unit are converted into digital data using white level information of the image information as an index to a conversion reference. The white level information correction apparatus comprises a plurality of storage apparatus for storing a plurality of pieces of white level information to be used as indices to the conversion reference, a data magnification variation apparatus for multiplying white level information from a storage apparatus by a coefficient to vary the magnification of the data, and a data write control apparatus for storing white level information varied in magnification by the data magnification variation apparatus into a storage apparatus to update the stored data.

White level information correction apparatus for image reading apparatus

A paper end detection apparatus for an image reading apparatus suitable for use with an image scanner, which is superior in that an end of a paper sheet can be detected accurately. The paper end detection apparatus is incorporated in an image reading apparatus wherein paper image information is read from a paper sheet being transported along a paper transport path by an optical image reading unit at a fixed location along the paper transport path, and includes a one-line peak value detection section for detecting, from an image signal from the optical image reading unit, a peak value in one line along a direction perpendicular to the direction in which the paper sheet is transported, a storage section for storing a past peak value in one line detected prior to the current peak value detected by the one-line peak value detection section, and a comparison section for comparing the current peak value detected by the one-line peak value detection section and the past peak value from the storage section and outputting a result of the comparison as a paper end detection signal.

Paper end detection apparatus for image reading apparatus and image

Molding materials of this invention comprise copolymers consisting essentially of 10 to 30% by weight of .alpha.-methylstryene units. 40 to 70% by weight of methyl methacrylate and 10 to 30% by weight of stryene units with a weight average molecular weight in the range from 50,000 to 200,000, a melt flow rate (MFR) in the range from 4 to 18 g./10 min. at 220.degree. C. under a 10-kg load, and a Vicat softening point of 130.degree. C. or more, show a high degree of transparency, good heat and weather resistance and good moldability and are best suited for such uses as automotive and electrical parts.

Growing community of inventors

Kawasaki, Japan

Keiichi Saito