Hitachi, Ltd.

Toru Takei

Hiroshi Inoue

Keisuke Nakashima

Junzo Kawakami

Minoru Kanoi

Hiroyuki Kudo

Kiyoji Iwashita

Kazuo Nishijima

Yuzuru Imamura

Saburou Yasukawa

Kozo Nakamura

Tatsuki Inuzuka

Yasuyuki Kojima

Shinichi Shinoda

Yasuyuki Kozima

Shogo Matsumoto

Hisashi Matsumoto

Yasunori Iwafuji

Tadashi Tamaoki

Hiroshi Kawamura

Hideki Muroya

Katsubumi Ouchi

Eizou Ebisui

Hideo Nakazawa

Takeshi Kobayashi

Kagehiro Yamamoto

Kyoichi Nomura

Tomoe Sasayama

Naoki Kinoshita

Norikazu Takahashi

Atuhiko Urusihara

Kenji Yokoi

An electrical power distribution monitoring system is provided for a power distribution line having a plurality of sections with a plurality of electrical loads connected to the power distribution line to form a power distribution network. The monitoring system has at least one sensor for at least one present electrical value at least one point of the network, and estimates electrical values for at least one section of the line in dependence on both of present electrical values measured by the sensor and data relating to past power consumption by loads connected to the line. Improved prediction of actual conditions in the distribution line can be obtained.

Electrical power distribution monitoring system and method

An electrical power distribution monitoring system is provided for a power distribution line having a plurality of sections with a plurality of electrical loads connected to the power distribution line to form a power distribution network. The monitoring system has at least one sensor for at least one present electrical value at at least one point of the network, and estimates electrical values for at least one section of the line in dependence on both of present electrical values measured by the sensor and data relating to past power consumption by loads connected to the line. Improved prediction of actual conditions in the distribution line can be obtained.

In a high-speed image scanner, a driving method is proposed which needs no timing adjustment between the sensor driving pulse and the motor drive pulse required when the motor shifts from an accelerated state to a constant-speed state. The period of the sensor driving pulse is selected to be equal to or 1/N (N=integer) of that of the motor drive pulse at the time of constant-speed operation, and the phases of the sensor driving pulse and motor drive pulse are controlled independently of each other. Thus, even though the sensor driving pulse and the motor drive pulse are out of good timing, each line of the image can be surely read.

Image scanner and image scanning method

A facsimile apparatus has a transparent plate on which a document may be located. The document is then scanned by a scanner which includes electronic solid state light generation means e.g. LEDs which illuminate the document, with the light reflected from the document being detected by a detector. An electronic signal corresponding to an image of the document may then be transmitted to a remote location. Alternately, the facsimile apparatus may be used to copy the document. Cut paper sheets are withdrawn from storage and an image printed thereon by a heat transfer system in which a film of ink is selectively heated. Paper on which an image has been printed is then received on the upper surface of the storage. The facsimile apparatus may also have a document transporter for moving a document past the scanner with the scanner fixed.

Facsimile apparatus and method for processing a fixed document

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Hitachinaka, Japan

Toru Takei