BIST Design for CCD Based Digital Imaging System

This paper presents a BIST design for CCD-based digital imaging system. Pixels on a CCD are not free from defective or faulty pixels due to numerous causes such as imperfect fabrication, excessive exposure to light, radiation, sensing element aging, and excessive mechanical shock, to mention a few. Today\u27s high demand for high resolution CCDs is dictating defect/fault-tolerance in such devices. Especially, traditional on-device BIST cannot be readily employed on the imaging devices such as CCD due to the unique requirement that no pixel can be utilized to repair or bypass a defect on any other pixels. Therefore, the BIST technique designed and simulated in this paper is a technique to test and repair the defects on pixels off the device, referred to as off-device tolerance. The basic idea was proposed in our previous work in [2] where the off-device defect/fault tolerance was investigated and a soft-test/repair technique was theoretically proposed in order to demonstrate the efficiency and effectiveness in terms ofreliability, referred to as virtual yield. A Verilog-based design and simulation is provided to demonstrate the validity of the off-device soft-test/repair in terms of reliability (or virtual yield) enhancement and performance

Roadmap on signal processing for next generation measurement systems

Signal processing is a fundamental component of almost any sensor-enabled system, with a wide range of applications across different scientific disciplines. Time series data, images, and video sequences comprise representative forms of signals that can be enhanced and analysed for information extraction and quantification. The recent advances in artificial intelligence and machine learning are shifting the research attention towards intelligent, data-driven, signal processing. This roadmap presents a critical overview of the state-of-the-art methods and applications aiming to highlight future challenges and research opportunities towards next generation measurement systems. It covers a broad spectrum of topics ranging from basic to industrial research, organized in concise thematic sections that reflect the trends and the impacts of current and future developments per research field. Furthermore, it offers guidance to researchers and funding agencies in identifying new prospects.AerodynamicsMicrowave Sensing, Signals & System

Design, Characterization and Packaging for MEMS and Microelectronics (MICRO/MEMS'99)

International audienc

Design, Characterization and Packaging for MEMS and Microelectronics (MICRO/MEMS'99)

International audienc

Laser and vision sensing for obstacle avoidance and target seeking for a simple mobile robot

In this paper the use of laser and vision sensing for navigation of a simple fully-autonomous mobile robot capable of performing obstacle detection and avoidance functions is presented. The navigation system uses image processing and laser triangulation computation to detect obstacles on the path towards the pre-specified target. It then employs fuzzy logic to determine the movements of the robot to avoid the obstacles while to continuously progressing towards the target. A localization system of the robot is based on progressive calculation and updating of global (world) and object coordinates. The system is implemented using inexpensive commodity hardware and employs simple but effective data processing software and control algorithms

On the Binary Sequences with Indistinguishable Signature for a Given Error Multiplicity in Electronic Testing

Демиденко, Сергей; Иванюкович, Александр; Махнист, Леонид; Пьюри, Винченцо. О двоичных последовательностях с неразличимой сигнатурой при заданной кратности ошибок в электронном тестированииDistinct binary seąuences (2 ͫ – 1 bits long) may be compressed by an m-bit signature register into the same signature ualue, when a given error multiplicity is considered. Analytical expressions to compute the number of distinct seąuences collapsed into the same signature are presented, by exploiting the properties of the binary Hamming codę theory and of the binomial coefficients