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.

Currency note comprising an integrated circuit

Abstract: A currency note includes an identification and/or authentication element including an integrated circuit. The integrated circuit can store, securely in electronic form and accessible from outside, such information as: the value, serial number, issuer, and date of issuance.

Cross-layer perceptual ARQ for H.264 video streaming over 802.11 wireless networks

Abstract: We present a new cross-layer ARQ algorithm for video streaming over 802.11 wireless networks. The algorithm combines application-level information about the perceptual and temporal importance of each packet into a single priority value, which drives packet selection at each retransmission opportunity. Hence, only the most perceptually important packets are retransmitted, delivering higher perceptual quality and less bandwidth usage compared to the standard 802.11 MAC-layer ARQ scheme. H.264 video streaming based on the proposed technique has been simulated using ns in a realistic home network scenario, using the standard ARQ technique for all interfering traffic. Results show that the proposed method consistently outperforms the standard MAC-layer 802.11 retransmission scheme, delivering more than 1.5 dB PSNR gains using approximately half of the retransmission bandwidth.

An automated inspection station for machine-vision grading of potatoes

Abstract: A prototype inspection station based on the United States Department of Agriculture (USDA) inspection standards was developed for potato grading. The station consisted of an imaging chamber, conveyor, camera, sorting unit, and personal computer for image acquisition, analysis, and equipment control. A sample of 9.1kg (201b) of pregraded potatoes were evaluated in three separate experimental runs to assess the system performance. The system correctly classified 80%, 77%, and 88% of the moving potatoes in the three runs at 3 potatoes/min, and 98%, 97%, and 97%, in three runs of stationary potatoes. Shape analysis was adversely affected by the potato motion, and this contributed to the misclassification error.

Method for storing and reading data in a multilevel nonvolatile memory

Abstract: The data management method applies to a multilevel nonvolatile memory device having a memory array formed by a plurality of memory cells. Each of the memory cells stores a number of bits that is not an integer power of two, for example three. In this way, one data byte is stored in a non-integer number of memory cells. The managing method includes storing, in a same clock cycle, a data word formed by a plurality of bytes, by programming a preset number of adjacent memory cells. Reading is performed by reading, in a same clock cycle, the stored data word.

EEPROM Diagnosis Based on Threshold Voltage Embedded Measurement

Abstract: Knowing, that the threshold voltage of the EEPROM memory cells is a key parameter to determine the overall performance of the memory, a built in structure to extract this information is a very relevant choice to fast diagnose the failure in the memory. Thus, the objective of this paper is to present a built in self-diagnosis of EEPROM memory cells, based on threshold voltage extraction. In order to extract the threshold voltage, the modified circuit and the associated test sequence are presented. Based on the threshold voltage extraction, complementary information is proposed to improve the classical memory diagnosis methodology.