Mitsubishi Electric

About: Mitsubishi Electric is a company organization based out in Ratingen, Germany. It is known for research contribution in the topics: Signal & Voltage. The organization has 23024 authors who have published 27591 publications receiving 255671 citations. The organization is also known as: Mitsubishi Electric Corporation & Mitsubishi Denki K.K..

Positioning system, air conditioning system and lighting system

Abstract: To provide a positioning system that clearly defines a disposition of a base station for identifying a position of a radio set. While a wireless base station 1 that transmits and receives a distance-measuring signal to and from a terminal 2 to be measured by wireless communication is disposed at each corner forming an equilateral triangular, the length of each side of the equilateral triangle is made to be a maximum communication distance of the wireless base station 1.

Random Switching Logic: A New Countermeasure against DPA and Second-Order DPA at the Logic Level

Abstract: This paper proposes a new countermeasure, Random Switching Logic (RSL), against DPA (Differential Power Analysis) and Second-Order DPA at the logic level. RSL makes a signal transition uniform at each gate and suppresses the propagation of glitch to allow power consumption to be independent of predictable data. Furthermore, we implement basic logic circuits on the FPGA (Field Programmable Gate Array) by using RSL, and evaluate the effectiveness. As a result, we confirm the fact that the secure circuit can be structured against DPA and Second-Order DPA.

Scaleable very long instruction word processor with parallelism matching

Abstract: A system is provided to increase the efficiency of a VLIW, Very Long Insttion Word, processor which matches its level of parallelism, LOP, to the LOP of the executable code before executing the code's fixed-length VLIW instructions, so that object-level code compatibility is kept for different processor implementations of the same VLIW architecture required for different applications. Matching is accomplished either by reducing the LOP of the processor via inactivating the processor's functional units, or by effectively reducing the LOP of the executable code via the processor executing the sequential portions of each VLIW instruction in the code, with the length of the portions equal to or less than the number of operations that the processor can handle as a VLIW instruction.

Microprocessor-Based Vector Control System for Induction Motor Drives with Rotor Time Constant Identification Function

Abstract: A microprocessor-based high-performance vector control system for induction motor drives is discussed. In this system the high-performance current control method is employed, which can operate stably even when the saturation of a supplied voltage occurs. To estimate the rotor flux vector accurately, the powerful identification method of the rotor time constant is investigated, which does not require additional sensors for identification. This vector control system is developed by making use of a single high-speed 16-bit microprocessor (Intel 80186). Experimental results are presented.

Area Effect of Electrical Breakdown in Compressed SF6

Abstract: This paper presents experimental results on the statistical properties of ac and dc breakdown field strength of compressed SF6. The experiment is performed on four gaps of different electrode area, ranging from 0.2 cm2 to 3000 cm2. Patterns of breakdown characteristics are classified into four categories depending on the type of distribution and the characteristics of conditioning effect. The criterion of the transition of these categories are discussed quantitatively.