Mitsubishi Denki Kabushiki Kaisha

Mitsunobu Esaki

Yoshiyuki Honda

Yoshiji Minagawa

Hironobu Tsutsumi

Katsumi Tomiyama

Chiharu Miyazaki

Toshio Ootake

Sachio Igawa

Shigefumi Kimura

Naoto Oka

Mitsuhiko Kanda

Sunao Hiraki

Yoshiaki Ito

Masahiro Inoue

Toshiyasu Higuma

Kazuho Uemura

An LC filter is provided which includes a first conductive sheet, a first dielectric sheet laminated on the first conductive sheet, a second conductive sheet laminated on the first dielectric sheet, a second dielectric sheet laminated on the second conductive sheet, a third conductive sheet laminated on the second dielectric sheet, and a third dielectric sheet laminated on a third conductive sheet formed as an integral body which has the first, the second and the third conductive sheets and the first, the second and the third dielectric sheets, are coiled. The first and the second conductive sheets are respectively provided with input terminals and output terminals.

Laminate LC filter having combined condenser and coil functions

A terminal unit for use in an information transmission system disposed between an information transmission line in the information transmission system constituted of signal lines for transmitting a signal by conduction therethrough of a direct current having positive polarity and negative polarity and controlled equipment as one terminal of the system, including at least a coupling circuit for transmitting and receiving a signal to and from the transmission line by converting the signal into a direct current as aforesaid and converting such a direct current into the signal, a transmission control device controlling transmission and reception of a signal according to a protocol for signal transmission, and a transmission circuit and a reception circuit disposed between the coupling circuit and transmission control device for making signal transmission and reception, respectively, and further, comprising a polarity detection circuit for detecting polarity of the direct current voltage supplied from the signal lines and a polarity switching circuit for switching polarities of a signal delivered to the transmission line depending upon the result of detection in the polarity detection circuit.

Terminal unit in information transmission system

A home control system includes a pair or plural pairs of home information transmission path (referred to as home bus); information outlets provided at the home bus which serve as connection nodes for appliances; and a plurality of room monitor controllers (hereinafter referred to as RMC) each having a built-in interface unit which has a control function element peculiar to respective rooms and carries out communication control between the information outlets and the appliances.

Home control system and interphone system

Growing community of inventors

Kamakura, Japan

Mitsunobu Esaki