Nec Corporation

Hitachi, Ltd.

Tdk Corporation

Makoto Saitoh

Yutaka Yano

Hiroshi Kawakami

Tadashige Konno

Hajime Aoi

Yasuhide Ouchi

Reijiro Tsuchiya

Nobumasa Nishiyama

Koji Nishida

Takashi Tamura

Tsutomu Tashiro

Eitaro Misumi

Harushi Someya

Nobuo Kotatsu

Kazuhiro Takada

Masaru Aoyagi

To suppress expansion of damage to a working-state cable due to work being continued without detecting breakage of the working-state cable when the breakage occurs, the working-state cable protection monitoring system is provided with: a working means that moves or installs a wire cable-shaped construction material including an optical fiber having at least one core; an interrogator that acquires environment information about each position of the construction material, sensed by the optical fiber; and an abnormal event detection means that, when the environment information acquired at each position of the construction material satisfies an abnormal pattern, detects an abnormal event at the position, where in the working means stops movement and installment of the wire cable-shaped construction material when the abnormal event has been detected.

Working-state cable protection monitoring system, working-state cable protection monitoring method, and storage medium having stored therein working-state cable protection monitoring program

In order to provide a mechanism which predicts a risk of future failure occurrence, by using fiber optic sensing, this failure prediction system comprises: a sensing function unit which acquires the environmental information detected by the optical fiber; an event classification function unit which classifies, by type, events occurring at each position of the object indicated by the environmental information, on the basis of event classification conditions; and a failure occurrence risk calculation unit having, in advance, one or more failure models obtained by modeling a physical mechanism that leads to a malfunction in the object, wherein the failure occurrence risk calculation unit calculates a failure occurrence risk in each object by the mechanism, and outputs the accumulated result as a risk or availability.

Failure prediction system, failure prediction device, and failure prediction method

A measurement system, a measurement device, and a measurement method being able to measure a flow speed for each position of an optical fiber are provided. According to one example embodiment, a measurement system includes: an object provided in a fluid, and generating a self-excited vibration by the fluid; an optical fiber provided in the fluid, and detecting the vibration; a light source outputting light P to the optical fiber; an acquisition unit acquiring backscattered light generated from the light P in the optical fiber and including a pattern indicating the vibration in a vibration position on the optical fiber to which the vibration of the fluid is transmitted; and a measurement unit measuring, from a pattern included in the backscattered light and indicating the vibration, a flow speed of the fluid in the vibration position.

Measurement system, measurement device, and measurement method to detect a direction in which fluid flows

The status or state of a computer system is displayed with respect to at least one subspace having two or more coordinates of display corresponding respectively to different selected status variables of the computer system, which might be utilization factors of respective programs operating in a network. Critical states are defined by critical state formulas, at least one of which involving a plurality of the status variables. The critical state formulas are used to define and display a critical region on the display apparatus with respect to the coordinate system. Values of the status variables, loci of the status variables, indications of change of the status variables, distances of points defined by the status variables from the critical region and the like information are displayed in a subspace with respect to the coordinates to give a visual indication of their relationship to the critical region. The selection of status variables for display and other information for display is based upon various criteria.

Displaying method and apparatus of the system status

This invention discloses a composite type circuit part comprising a conductive plate formed at both wings with inductor place portions, respectively, a pair of first intermediate coupling elements in which an inductor place portion is formed at one end opposed to each inductor place portion of the wings, and a second intermediate coupling element with one end arranged opposedly of a central portion of the conductive plate and arranged at a position between the pair of first intermediate coupling elements. A lead wire coupling portions for holding a lead wire, is provided in the first intermediate coupling element and the second intermediate coupling element. Lead wires are coupled to the lead wire coupling portions, respectively. Inductors are placed on the opposed inductor plate portions, respectively. A chip condenser is placed over and between the central portion of the conductive plate and the second intermediate coupling element, thereby providing a positive coupling state of the lead wires. The central portion of the conductive plate is projected to enhance the mechanical strength. Further, upright elements are provided on the intermediate coupling element to enhance the mechanical strength. Moreover, holes for preventing a flow of solder are provided partially in the conductive plate.

Composite type circuit parts

The present invention relates to a composite-type circuit component containing inductors and a capacitor, in which the inductors are disposed at both wings of a conductive plate, and the capacitor is disposed at the intermediate portion of the conductive plate. The above-mentioned inductors and capacitor are connected with lead wires having circular cross sections.

Composite-type circuit component and its manufacturing method

A signal read out circuit included in a magnetic recording device is disclosed in which plural kinds of slice levels are used simultaneously for a reproduced analog waveform to produce a plurality of gate signals corresponding to the slice levels, and it is judged on the basis of the gate signals whether each portion of the reproduced waveform is correct or not in producing a digital output.

Multi slice level signal circuit

An underwater communication system of the present invention comprises a transmitter including message inputting means having keys, each being assigned to each word, code converting means for converting a key input entered through the inputting means to a code assigned to the key input, modulator means responsive to the code for performing modulation, and transmit transducer means for converting an output of the modulator means to an acoustic wave, and a receiver including a receiver transducer means for reconverting the incoming acoustic wave from the transmitter to an electric signal, demodulator means for demodulating the electric signal to generate the code, speech synthesis means responsive to the demodulated code for producing a word corresponding to the code as a speech, and speaker means for outputting the synthesized speech.

Growing community of inventors

Tokyo, Japan

Makoto Saitoh