STMicroelectronics

About: STMicroelectronics is a company organization based out in Geneva, Switzerland. It is known for research contribution in the topics: Signal & Transistor. The organization has 17172 authors who have published 29543 publications receiving 300766 citations. The organization is also known as: SGS-Thomson & STM.

Method for transposing multi-bit matrix wherein first and last sub-string remains unchanged while intermediate sub-strings are interchanged

Abstract: A method of effecting a matrix transpose operation in a computer is described. The method uses a computer instruction which restructures a data string by retaining first and last sub-strings of the data string in unchanged positions and interchanges the position of at least two intermediate sub-strings. The data string is formed from sub-strings each representing one or more data value in a matrix. The computer instruction can be effected in a single register store having a predetermined bit capacity addressable by a single address, or in a pair of such register stores. The data restructuring instructions include "flip", "zip" and "unzip" instructions.

Pinapa: an extraction tool for SystemC descriptions of systems-on-a-chip

Abstract: SystemC is becoming a de-facto standard for the description of complex systems-on-a-chip. It enables system-level descriptions of SoCs: the same language is used for the description of the architecture, software and hardware parts.A tool like Pinapa is compulsory to work on realistic SoCs designs for anything else than simulation: it is able to extract both architecture and behavior information from SystemC code, with very few limitations. Pinapa can be used as a front-end for various analysis tools, ranging from "superlint" to model-checking. It is open source and available from http://greensocs.sourceforge.net/pinapa/. There exists no equivalent tool for SystemC up to now.

Edge termination of semiconductor devices for high voltages with resistive voltage divider

Abstract: Semiconductor device for high voltages including at least one power component and at least one edge termination. The edge termination includes a voltage divider including a plurality of MOS transistors in series, and the edge termination is connected between non-driveble terminals of said power component.

Buck converter with operating mode automatically determined by the load level

Abstract: A DC-to-DC (buck) converter comprises a PWM regulation loop and a hysteretic control loop, which are alternatively enabled by a mode selection circuit of the converter in function of the load level. When the level of load drops below a preset limit related to a design load level, the converter passes from a PWM control mode to a hysteretic control mode, thus eliminating switching losses during periods of operation at relatively low load level.