Sumitomo Electric Industries, Limited

Canon Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Hitachi, Ltd.

The Sanwa Bank Limited

Rhone-Poulenc Sante

Japan Aircraft Mfg. Co., Ltd.

Nobuyuki Suzuki

Yoshiaki Nagao

Fumiaki Sato

Keisuke Okada

Masao Shimizu

Mitsuhiro Katsuragawa

Shinji Tanaka

Sari Maekawa

Kenta Tsuchiya

Takatoshi Shimizu

Yoshikuni Watanabe

Daisuke Fukagawa

Kouji Ogino

Kazuaki Ogawa

Hajime Yamasaki

Masamichi Mizoguchi

Hiroyuki Shimazaki

Tatsushi Yano

Satoshi Murabayashi

Yukio Kouguchi

Tetsuo Yamashita

Koichi Nakagawa

Yuji Sakaegi

Yoshinobu Sato

Hiroaki Sano

Ryosuke Miyamoto

Taro Fujita

Kazunobu Nagai

Toshimitsu Aizawa

Yukihisa Hasegawa

Nayu Yanagawa

Yuuki Shimoda

Satoshi Morioka

Makoto Shida

Toshikazu Sekihara

Toyojiro Hayashi

Yukio Koguchi

Wataru Asai

Masato Yamagahana

Kiyoshi Sekihara

Jun-ichi Ohta

Shuting Li

An optical fiber cable includes optical fiber ribbons, a slot rod and a cable jacket. The slot rod has slot grooves in which the optical fiber ribbons are housed. The cable jacket covers an outside of the slot rod. The optical fiber ribbons have, in a state in which optical fibers having an outer diameter of 0.22 mm or less are arranged in parallel, connecting portions at which adjacent ones of the optical fibers are connected to one another and non-connecting portions at which adjacent ones of the optical fibers are not connected to one another, which are provided intermittently in a longitudinal direction. A density of core number of the optical fibers included in the optical fiber cable is 4.8 cores/mmor more in a cross section of the optical fiber cable.

Optical fiber cable

There is provided an intermittent connection type optical fiber ribbon in which at least a part of a plurality of optical fibers that are arranged to be in parallel come into contact with each other, and between a part or the entirety of the optical fibers, a connection portion at which the adjacent optical fibers are connected to each other with an adhesive resin, and a non-connection portion at which the adjacent optical fibers are not connected to each other with the adhesive resin, are intermittently provided in the longitudinal direction, in which an outer diameter dimension of the optical fiber is equal to or less than 0.22 mm, and an inter-center distance of the adjacent optical fibers is 0.20&#xb1;0.02 mm, and in which at least a part of the outer periphery of the optical fiber has no adhesive resin attached thereto.

Intermittent connection type optical fiber ribbon having improved density, manufacturing method of the ribbon, optical fiber cable, and optical cable fiber code

An intermittent-connection-type optical fiber ribbon includes: a plurality of optical fiber core wires that are disposed in parallel; a connecting resin that is coated on surfaces of the plurality of optical fiber core wires; and slits that are provided intermittently in the connecting resin partially between the optical fiber core wires in a longitudinal direction, and a marking is on the connecting resin.

Intermittent-connection-type optical fiber ribbon with thick and thin vertical lines and method for manufacturing

Provided is an optical fiber cable whereby macrobend loss can be suppressed even when ribbons are mounted at high density in grooves. An optical fiber cable provided with optical units in which ribbons each having a plurality of optical fiber cores arranged in parallel are collected, a slot rod having a plurality of grooves for accommodating optical units, a tension member on which tension is applied, and a cable jacket for covering the outside of the slot rod. Each of the optical units is accommodated in the corresponding groove in a stranded state, and the occupancy of the optical units calculated from the cross-sectional area of the optical units with respect to the cross-sectional area of the groove is 25% to 65%.

An intermittent-connection-type optical fiber ribbon in which a plurality of optical fiber core wires are disposed in parallel, and which includes: a connecting part where adjacent optical fiber core wires are connected; and a non-connecting part where adjacent optical fiber core wires are not connected, the connecting parts and the non-connecting parts are provided intermittently in a longitudinal direction, the non-connecting parts are not provided in the longitudinal direction between two the optical fiber core wires, the connecting part is recessed, and in a case where, in the longitudinal direction, a is length of the connecting part, b is length of a part where the non-connecting part between different optical fiber core wires overlap, c is length of the non-connecting part, and p is an interval of the connecting parts, c/a&#x2265;1.5, b&#x2264;50 mm, and (c/a)&#xd7;p&#x2265;200 mm are set.

Intermittent-connection-type optical fiber ribbon and optical cable

An optical fiber cable includes optical fiber ribbons of no less than 12, a slot rod including slot grooves in which the optical fiber ribbons are housed, a tension member, and a cable sheath. The optical fiber ribbons include, at a part of or through all of the optical fiber core wires, in a state where the optical fiber core wires are arranged in parallel, a connecting part where adjacent optical fiber core wires are connected and a non-connecting part where adjacent optical fiber core wires are not connected, which are provided intermittently in a longitudinal direction. A relationship between the number 'x' of the optical fiber core wires housed in the optical fiber cable and flexural rigidity 'y' (N&#xb7;mm) of the optical fiber cable satisfies following Expression 1.y&#x2264;3e&#x2003;&#x2003;(Expression 1)

An optical fiber cable comprises optical units having a plurality of optical fiber ribbons, a slot rod having a plurality of slot grooves in which the optical units are accommodated, and a cable sheath configured to cover an outer side of the slot rod, each of the optical fiber ribbons is intermittently provided with coupling portions, at which adjacent optical fibers are coupled therebetween, and non-coupling portions, at which adjacent optical fibers are not coupled therebetween, in a longitudinal direction between a part or all of the optical fibers in a state where the plurality of optical fibers is arranged in parallel, and an outer diameter of the optical fiber cable is 35 mm or less and a number of the optical fibers in the optical unit accommodated in one slot groove is 100 or more.

This optical fiber cable comprises an optical unit obtained by creating strands of a plurality of optical fiber tape cores, a tube in which the optical unit is housed, and a cable sheath that covers the outside of an aggregate of a plurality of tubes. The optical fiber tape cores have provided thereto, between some or all of optical fiber cores when a plurality of optical fiber cores are positioned in parallel, and intermittently in the longitudinal direction thereof, connecting parts that connect adjoining optical fiber cores, and non-connecting parts at which adjoining optical fiber cores are not connected. The tube has a Young's modulus lower than the Young's modulus of the cable sheath, and the aggregate is such that the plurality of tubes on the inside of the cable sheath deform elastically with respect to one another, with some thereof being in surface contact with the cable sheath.

Optical fiber cable having a plurality of stranded optical fiber ribbons

A motor control device driving a motor via an inverter circuit includes a current sensing element, a PWM signal generation unit and a current detection unit. The PWM signal generation unit is configured to generate three-phase PWM signals in a manner such that the current detection unit is capable of detecting two-phase currents at two fixed time-points within a carrier period of the PWM signal. A duty of one of the three-phase PWM signals is increased/decreased to both phase lag side and phase lead side with reference to any phase. A duty of another phase PWM signal is increased/decreased to both phase lag side and phase lead side with reference to any phase away one half of the carrier period from the reference phase. A duty of the other phase PWM signal is increased/decreased to either phase lag side or phase lead side with reference to any phase.

Motor control device, air conditioner, washing machine and refrigerator

A motor control device includes a PWM signal generation unit configured to increase/decrease a duty in both directions of phase lag side and phase lead side regarding a first phase of three-phase PWM signal pattern. The PWM signal generation unit is configured to increase/decrease a duty in one of the directions of phase lag side and phase lead side regarding a second phase. The PWM signal generation unit is configured to increase/decrease a duty in a direction opposite to that of the second phase with reference to any phase of the carrier-wave period regarding a third phase. A timing point adjusting unit is configured to detect two-phase currents at timing points fixed in the carrier-wave period and to adjust a detection timing point so that the current is detectable at a variable timing point regarding at least one phase when the two-phase currents become undetectable at the fixed timing points.

Motor control device and air conditioner

A motor control device includes a PWM signal generation unit generating a signal pattern of two of three phases so that the pattern follows a rotor position, and a timing adjusting unit. The signal generation unit increases/decreases duty in both directions of lag side and lead side based on any phase of a carrier-wave period regarding a first phase. The signal generation unit increases/decreases duty in one direction regarding a second phase. The signal generation unit increases/decreases duty in a direction opposite to the second phase regarding a third phase. The timing adjusting unit adjusts detection timing so that a current detection unit detects current in fixed timing with respect to one phase and current in another fixed timing with respect to the other phase or the current detection unit is capable of detecting current in variable timing according to magnitude of output voltage to an inverter circuit.

A motor control device controlling an inverter to control an electric motor, includes a plurality of function sections, a voltage command generating section generating a d-axis voltage command and a q-axis voltage command, a voltage operational processing section, an input current operation section, a speed information generating section estimating a rotational speed of the motor based on at least one of a motor constant, a positional information generating section delivering positional information about a rotor, and a processor executing control software set by a user or a manufacturer. At least a part of the function sections are configured by hardware. The function section configured by the hardware is given at least one parameter retaining section. The parameter retaining section is configured so as to be readable/writable on the processor. The function section is configured by the hardware so as to be operated in a predetermined sequence.

Motor control device and electrical equipment provided with the same

A system control unit sets stream_id of each reproduced elementary stream and the total number of streams in each of the elementary stream from management information read from a medium. A stream separation unit reads an MPEG stream from the medium to record a combination of a stream identification number and an attribute of the stream as a stream attribute table. When the stream separation unit can not detect the set stream_id from the MPEG stream, the system control unit resets stream_id of the reproduced elementary stream based on the stream attribute table

Video and audio reproduction apparatus

A desired combination of reproduced images can be easily obtained in a multi-reproduction mode. When a ten-key input is made and a four-picture display mode is selected, a reproduced image from a ten-key input track is displayed on a small frame where a cursor is located. When a four-picture display key is depressed in a full-screen display mode, four images starting from the full-screen displayed image are simultaneously displayed. When the four-picture display key is continuously operated, four following images including the displayed lower right-hand image are simultaneously displayed.

Simultaneous display of multiple images reproduced from a recording

An image processing apparatus comprising a compressing section to compress image data, an enlarging section to electrically enlarge the image data, and a control section to control the compressing section in accordance with a magnification of the enlarging section is provided.

Image processing apparatus for compressing image data according to an

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Yokohama, Japan

Nobuyuki Suzuki