Nippon Telegraph and Telephone Corporation

Fuji Photo Film Company, Limited

Fujifilm Corporation

Ntt Electronics Corporation

Shizuoka Prefecture

Tdk Corporation

Nippon Telephone and Telegraph Corporation

Masahiro Endo

Akio Uesugi

Masatoshi Tobayashi

Masafumi Nogawa

Yoshiaki Kurokawa

Ryuji Hisanaga

Takashi Suzuki

Akira Oosawa

Shunji Kimura

Shogo Yagi

Shinsuke Nakano

Yoshikazu Urabe

Takaya Tanabe

Hiroki Choto

Shinichi Kondo

Masaki Takahashi

Yukio Takahashi

Takahiro Sato

Hiroshi Yoshikawa

Hiroshi Koizumi

Hirokazu Sawada

Masahiro Ueno

Hirokazu Sakaki

Manabu Yamamoto

Yoshinori Hotta

Tadayuki Imai

Kazutaka Hara

Atsuo Nishino

Kouichi Kakuda

Hirotaka Nakamura

Ryuichi Wada

Hiroaki Katsurai

Yuya Oshima

Yoshitaka Masuda

Akinori Ohi

Yukari Akita

Koji Kitahara

Akinori Furuya

Hiroaki Sanjoh

Ken Yamaguchi

Hiroyoshi Furukawa

Masahiro Akimaru

Shigehiro Kurita

An amplifier applied to TIA is provided to suppress the noise caused by a current source. An amplifier constituting a transimpedance amplifier includes an inductor element inserted between a current source connected to an input terminal of an amplification stage and a power source voltage line. The current source includes a first transistor in which a base terminal is connected to a current control bias and a collector terminal is connected to the input terminal. The inductor element is inserted between the emitter terminal of the first transistor and the power source voltage line.

Amplifier

An amplifier typically exemplified by a TIA is realized that provides an optimal band characteristic, that reduces the possibility of the oscillation, and that achieves a reduced dispersion of the band characteristics. An amplifier for amplifying an electric signal, comprising: a first buffer for amplifying the electric signal; a filter that is connected to an output of the first buffer and that includes a parallel circuit consisting of an inductor and a first capacity; and a second buffer connected to an output of the filter.

Image search conditions that are past search conditions are displayed in an image search history area, and text search conditions are displayed in a text search history area. When a user selects a desired image search condition out of the search conditions displayed in the image search history area, and selects a desired text search condition out of the search conditions displayed in the text search history area, case data that matches the selected image search condition and the text search condition is extracted from a database and displayed in a search result display area.

Case search device and method

A ferrite composition comprises a main component and a sub component. The main component is comprised of 25.0 to 49.8 mol % iron oxide in terms of FeO, 5.0 to 14.0 mol % copper oxide in terms of CuO, 0 to 40.0 mol % zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The sub component includes 0.2 to 5.0 wt % silicon oxide in terms of SiO, 0.10 to 3.00 wt % bismuth oxide in terms of BiO, and 0.10 to 3.00 wt % cobalt oxide in terms of CoO, with respect to the main component.

Ferrite composition and electronic component

A transimpedance amplifier circuit () includes an amplifier () that amplifies a received signal, an automatic gain control (AGC) circuit () that controls the amplification gain of the amplifier by a first time constant in accordance with the level of the received signal, and a first selection circuit () that selects the first time constant from a plurality of predetermined values. This can simultaneously implement a short time constant of an AGC function necessary to instantaneously respond to a burst signal and a long time constant of the AGC function necessary to obtain a satisfactory bit error rate (BER) characteristic in a continuous signal by an inexpensive and compact circuit arrangement.

Transimpedance amplifier circuit

A composite ferrite composition comprises a magnetic material and a non-magnetic material. A mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %. Ni&#x2014;Cu&#x2014;Zn based ferrite is used as the magnetic material. Oxides of Zn, Cu, and Si are at least included in a main component of said non-magnetic material. Borosilicate glass is included in a subcomponent of said non-magnetic material.

Composite ferrite composition and electronic device

A case image search apparatus according to the presently disclosed subject matter includes: an input unit for inputting a diagnostic object image group from an imaging apparatus; an estimation unit for estimating attributes of a diagnostic object image included in the diagnostic object image group on the basis of the diagnostic object image; a calculation unit for calculating a first feature amount which is a feature amount of the diagnostic object image corresponding to the attribute estimated by the estimation unit; and a search unit for searching a database for a similar case image group similar to the diagnostic object image group by comparing the first feature amount with a second feature amount which is a feature amount of a case image included in the case image group stored in the database corresponding to the attribute estimated by the estimation unit.

Case image search apparatus, method and computer-readable recording medium

In the present invention, unlike a conventional circuit, discrimination is not made by integrating a logical code that includes '0' and '1' to some extent and produced from a random code, but repetition of an identical pattern of a well-known preamble signal added to a head portion of a signal is discriminated when a bit-rate of the signal is changed. More specifically, the repetition of the identical pattern is converted into a consecutive identical signal to generate the consecutive identical signal (having a length of tens bits to thousands bits). Although the consecutive identical signal is longer than a same-code continuation length included in the signal, and is shorter than a time constant necessary to the conventional circuit by about one to three digits. Therefore, an integration time can be shortened to the same degree as the generated consecutive identical signal length, and the bit-rate can be discriminated at high speed within a preamble signal receiving time.

Bit-rate discrimination method and its apparatus

Case images are registered so as not to cause bias (or partiality or imbalance) in amounts of feature of the case images included in a database of a similar image search system for image diagnosis. Since registration of the case images to the database is controlled according to degrees of similarity of the amounts of feature, it is possible to prevent a lot of similar case images from being included in the search result. Thus, it is possible to reduce possibility of representing a similar search result which may interfere with an accurate diagnosis by a diagnostician.

Case image registration apparatus, method and recording medium, and case image search apparatus, method, recording medium and system

An optical memory medium () has cores () each constituting a planar optical waveguide and clads () sandwiching each core, and has a data image () in which data is recorded as a scattering factor and a pair of positioning marks () which are scattering factors required for positioning at an interface between a core () and a clad () or in the core (). A read light () travels while spreading in the core () and scatters and interferes by the data image (), and data is reproduced from a data reproduction light () generated by this scattering and interference. A pair of positioning lights () are caused to enter the core () with offsets with respect to the read light () in opposite directions along a thickness direction of the core (), and scatter and interfere at the pair of positioning marks (). Incidence positions of the lights emitted from a light source () with respect to the core () in a thickness direction of the core () are controlled based on intensities of a pair of positioning mark lights () generated by this scattering and interference.

Optical memory reproduction apparatus and incidence positioning method for read light thereof

An information coding apparatus, an information decoding apparatus, and a method and a program therefor are provided, which can represent a large amount of information with a small number of pixels. Information bits which are inputted are coded as a block of a two-dimensional image made up from m (where m is a natural number)&#xd7;n (where n is a natural number) pixels. Specifically, pixels which represent the information bits are arranged in a code area, which is an area of (m&#x2212;o)&#xd7;(n&#x2212;p) pixels within a code block of m&#xd7;n pixels (where o and p are natural numbers which satisfy 0&#x3c;o&#x3c;m and 0&#x3c;p&#x3c;n); and, no pixels which represent the information bits are arranged in a guide area, which is an area of the other pixels within the code block of m&#xd7;n pixels.

Information coding apparatus, information decoding apparatus, and method and program for the same

In a two dimensional image recording and reproducing scheme, a position of a prescribed pattern in an information recording image that contains the prescribed pattern is detected by detecting a rough position of the prescribed pattern in the information recording image in units of pixel size, and then detecting a detailed position of the prescribed pattern in the information recording image in units less than the pixel size, according to the rough position and a center of gravity of a distribution of similarities between regions in the information recording image and a reference image of the prescribed pattern.

Two dimensional image recording and reproducing scheme using similarity distribution

Disclosed is a production method of an aluminum support for a lithographic printing plate, capable of stable and low-cost production of an aluminum support for a lithographic printing plate, the support being scarcely subject to generation of treatment unevenness called streaks or grainy unevenness ascribable to the different in the aluminum dissolving rate due to the difference in the orientation of the crystal grain. The aluminum support is produced by surface graining and then polishing an aluminum plate or by polishing an aluminum plate while etching it in an aqueous acid or alkali solution. The aluminum plate may be subjected to polishing and then to anodization or may be subjected to polishing, to surface graining, again to or not to polishing and then to anodization. A production method for producing a high-quality support for a lithographic printing plate, free of local unevenness is also disclosed.

Production method for an aluminum support for a lithographic printing plate

A lithographic printing plate having an average curvature in a rolling direction of 1.5&times;10 mm or less, a curvature distribution in a crosswise direction of 1.5&times;10 mm or less, and a curvature in a direction perpendicular to said rolling direction of 1.0&times;10 mm or less and a method for producing the printing plate are disclosed. A method for producing a support for a lithographic printing plate is also disclosed, which comprises roughening a surface of an aluminum web having a center line average surface roughness of 0.15 to 0.35 &mgr;m and a maximum surface roughness of 1 to 3.5 &mgr;m by at least one of mechanical surface roughening, chemical etching and electrochemical surface roughening, and then applying anodization thereto.

Lithographic printing plate, method for producing lithographic printing plate, and method for producing support for lithographic printing plate

The present invention provides a planographic printing plate capable of ensuring improvement of productivity and stability of a small dot net portion due to improvement of adhesion. There is provided a planographic printing plate, characterized in that a surface of an aluminum plate being a support element of the planographic printing plate has been subjected to preliminarily polishing mechanically by at least 0.1 &mgr;m; chemical etching treatment by at least 0.1 &mgr;m; electrochemically surface-roughening; and anodic oxidation, and for a surface structure of the aluminum plate: (a) an area (S) for a graphic formed by a reference straight line drawn from a top of a third highest mountain of a two-dimensional roughness curve downwardly by 1 &mgr;m and a roughness curve upper than the reference straight line is 30 &mgr;m &lE;S&lE;150 &mgr;m ; (b) an average roughness Ra of average lines is 0.15 &mgr;m&lE;S&lE;Ra&lE;0.60 &mgr;m; (c) a relationship between the average roughness Ra of average lines and a height Rp of a center line is Rp&lE;6Ra; (d) a relationship between a maximum height Rmax and the average roughness Ra of average lines is Rmax&lE;12Ra; and (e) a surface area difference is between 20% and 70%.

Planographic printing plate, non-woven cloth roller, and method and apparatus for preliminarily polishing a metal plate for printing plate

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Shizuoka, Japan

Masahiro Endo