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A high spatiotemporal resolution, wireline operation-based, in-vivo neural recording system is presented. The proposed system allows selecting 64 channels from 512 recording sites. The neural signals from the 64 selected sites are amplified, filtered, and finally multiplexed in the time domain. The output signals of each multiplexer are buffered, converted to the current domain, and then transferred...
The level of requirements for a readout front-end electronics dedicated for X-ray imaging applications, such as: high count rate ability of input pulses, low noise, low power dissipation and low silicon area occupation noise, is still increasing. The question: what one can do to minimize silicon area and keep front-end electronics analog parameters at a desirable level at the same time, is still important...
In this paper we present an advanced software tool designed for a multi-criteria optimization of self-organizing neural networks (SOMs) for their effective implementation in hardware. Problems that we have to deal with in this type of implementations are radically different from those that occur in only pure software realizations. Therefore, although there are many available systems to simulate NNs,...
Rapid evolution of the high-performance digital cameras entailed a development of new gigabit interfaces for video streaming and further image processing. A 25 megapixel camera, shooting with 100 frames per second, can easily produce a stream of data reaching tens of gigabits per second. The situation is more complex in case of image processing systems that acquire video stream from many cameras....
The production of stereoscopic motion pictures has been recently getting increasingly popular. To provide the best quality of the resulting image, the parameters controlled must precisely correspond to the values calculated by the stereoscopic image analysis platform or chosen by a camera operator. Currently no integrated system exists, which can provide remote monitoring and control of the parameters...
Together with the development of 3D technology, a growing demand for 3D content creation appeared, leading to a noticeable growth in both number of users and their requirements. Although, there are many commercial solutions that help to automate 3D video recording process, there is still a lot of room for improvements in this area. In this paper the design and implementation process of a mobile application...
The increasing demand for innovative systems, used for monitoring the biomedical parameters and comfortable for the patients, leads to the provision of better and better solutions. This paper presents the latest system design for the measurement of psychophysiological parameters for comprehensive use, developed at the Institute of Medical Technology and Equipment in Zabrze (ITAM), in light of previous...
Psychological profiling is a necessary tool of modern human resource management, important for recruiting, placement and career planning. In extremely demanding jobs, like military service, the emerging problem is validity of psychological profile under stress-the problem is not only placement of people on adequate positions but also the limits of stress under which they remain efficient. We proposed...
The paper presents a Computer Aided Diagnosis (CAD) software for brain tumor detection and analysis from Magnetic Resonance Imaging (MRI). The software utilizes a novel multi-stage method that is capable of dealing with three main types of brain tumors, i.e. HG gliomas, metastases and meningiomas and yields object masks as well as quantitative parameters. The processing method makes use of several...
Problem of effective data processing in scientific applications is well-known. There are two reasons of that: nonoptimal front-end application code and ineffective system of scientific data management at back-end. This article presents differences between flat file and relational database data storage. It also shows (based on Microsoft SQL Server database engine) benefits and methods of taking advantages...
In the present paper, a generalized SPICE simulation model of photovoltaic modules is developed, valid for operating conditions of solar irradiance and temperature different from nominal conditions. An extraction procedure for model parameter determination is proposed using datasheet characteristics of the modules. In order to improve the model accuracy, the values of the voltage Vmp and the current...
In this paper a comparison of four low noise amplifiers (LNAs), designed in fully depleted SOI 28 nm technology, has been presented. The objective of the presented work was to verify the usability of all kinds of MOSFET transistors that are available in UTBB for RF analog designs. The inductively degenerated cascodes were used in simulations. Such topology achieves high gain and low noise figure (NF)...
Capacitor based DACs are common designer's choice for projects realized in nanometer technologies. Designs kits provide several devices that can be used as capacitors. However, they exhibit serious differences in terms of linearity, minimum area and sensitivity to process disturbances The paper presents analysis of capacitive divider design to be used in 8-bit DAC realized in 65 nm CMOS process. Various...
When designing in Smart Power technologies, TCAD simulations are mandatory to design effective passive protections against parasitic couplings due to minority carriers. The objective of this paper is to propose a spice-based approach to characterize electrical key parameters of a passive protection directly within standard IC design flow avoiding time consuming TCAD simulations. Our methodology consists...
In the paper a simple compact model of a transfer of a mechanical energy into an electrical energy is presented. The mechanical energy is stored in a vibrating bimetallic membrane with an electret layer. The membrane vibrations are forced by a set-up consisting of a cold and hot surfaces. During the vibrations this set-up acts as a variable capacitor with one of the electrodes being constantly charged...
In this paper a gradual investigation of a particular Hall sensor in SOI (“Silicon-On-Insulator”) technology is presented. The most important parameters of a specific Hall cell, based on SOI structure, are evaluated through three-dimensional physical simulations. The fact that the depth of the active silicon layer in SOI integration process is much smaller than in a regular CMOS is immediately reflected...
The design of advanced integrated circuits (IC) in particular for low power analog and radio-frequency (RF) application becomes more complex as the device level modeling confronting challenges in micro- and nano-meter CMOS processes. As present CMOS technologies continue geometry scaling the designers can benefit using dedicated SPICE MOSFET models and apply specific analog design methodologies. The...
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