Kabushiki Kaisha Toshiba

Texas Instruments Corporation

Sony Corporation

Sega Enterprises, Ltd.

Shimizu Construction Co., Ltd.

Osamu Hosokawa

Yutaka Saito

Takanori Sato

Hironobu Murata

Minoru Saito

Yasushi Watanabe

Hiroyuki Maehara

Nobuyoshi Kobayashi

Shoji Kobayashi

Shin Yamada

Kenichi Ikeda

Kei Takano

Hiromichi Oshikubo

Toshio Yamauchi

Yasukazu Nakamura

Tomoo Shokawa

Hideyo Shiokawa

Yoshihiro Orito

Seiho Kitagawa

Takeshi Chigiri

Takeshi Sano

Kazunori Koshida

Kiyokatsu Akimoto

Hideo Nakashima

A stationary induction electric apparatus includes a porcelain tube, a connection conductor, a conductor, a casing, a lead, a terminal, a spacer, an electric connection member and a first and a second insulating medium. The connection conductor is disposed at one end of the porcelain tube. The conductor is disposed in the porcelain tube, and connected to the connection conductor. The casing covers a stationary induction electric apparatus main body, and has an opening part. The lead extends from the main body to the opening part. The terminal is disposed at an end part of the lead. The spacer seals the other end of the porcelain tube and the opening part. The member includes an electrode connected to the terminal and a joint part connected to the conductor, and penetrates the spacer. The first and second insulating media are respectively filled in the porcelain tube and the casing.

Stationary induction electric apparatus and manufacturing method thereof

The system of the invention includes a circuit breaker switching control section () and a setting control section () connected therewith through a communication network (). The circuit breaker switching control section () transmits a circuit breaker state quantity acquired by a signal input section () through the communication network to a set value calculation section () of the setting control section (). The set value calculation section () of the setting control section calculates a set value to be set in the switching control section () of the circuit breaker, using the state quantity of the circuit breaker that was transmitted thereto. The setting control section () transmits to the circuit breaker switching control section the set value calculated by the set value calculation section () through the communication network. A switching control calculation processing section () provided in the switching control section of the circuit breaker corrects the circuit breaker switching actuation time in accordance with this set value and calculates a delay time in respect of the zero-cross point in accordance with this corrected switching actuation time and power system period.

Circuit breaker switching control system

A DPD tracking error signal detection apparatus includes the following. Four differentiators remove DC components and differentiate four signal with varying differential phases. The signals are then sampled and quantized by four A/D converters, and output to a non-inverting unit and an inverting unit. A phase inverter/compositor then leaves as-is or phase-inverts the output signals, according to a control signal. The non-inverting and the inverting unit each include two Hilbert transformers that phase-shift the output from the A/D converters, two delay units that delay the output of the other A/D converters to match the delay of the Hilbert transformers, two cross-correlators that calculate the cross-correlation between pairs of Hilbert transformers and delay units, and an adding unit that combines the cross-correlator results and outputs the combined result to the phase inverter/compositor.

Tracking error signal detection apparatus and optical disc apparatus

The objective of this invention is to perform high-precision tracking error detection and tracking control using digital circuitry at relatively low speed and with a small circuit scale. Tracking servo circuit is formed as a single-chip circuit. Low-pass filters (LPF) and gain control amplifiers (GCA) of the input portion are analog circuits, while the circuits after analog-digital (A/D) converters, that is, offset cancellation circuits, equalizers (EQ), first and second phase difference detectors, adder, low-pass filter (LPF), gain control amplifier (GCA), and servo DSP are all digital circuits.

Tracking error detection and correction methods and apparatus

A peak detector for detecting a peak signal includes an input circuit for inputting an input signal, a differential comparator for comparing the input signal with the peak signal to generate a difference signal, a diverting circuit to divert current between a first current path and a second current path based on the difference signal, and a comparator to accept current from the first current path and not from the second current path and to form the peak signal resulting from the current.

Peak hold circuit

Data transferring device and video game apparatus using the same

A concrete filled steel tube column. The concrete filled steel tube column includes a steel tube having an inner face; a concrete core disposed within the steel tube; and a separating layer interposed between the inner face of the steel tube and the concrete core for separating the concrete core from the inner face of the steel tube so that the steel tube may not be bonded to the concrete core. After the separating layer is formed on the inner face of the steel tube, the concrete is charged into the steel tube to form a concrete core.

Structural filler filled steel tube column

Growing community of inventors

Tokyo, Japan

Osamu Hosokawa