A Tiny Processing System for Education and Small Embedded Systems on the FPGAs

2008 ◽  
Author(s):  
Koji Nakano ◽  
Kensuke Kawakami ◽  
Koji Shigemoto ◽  
Yuki Kamada ◽  
Yasuaki Ito
Keyword(s):  
Embedded Systems ◽  
Processing System

scholarly journals Prime Field ECDSA Signature Processing for Reconfigurable Embedded Systems

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Benjamin Glas ◽  
Oliver Sander ◽  
Vitali Stuckert ◽  
Klaus D. Müller-Glaser ◽  
Jürgen Becker
Keyword(s):  
Embedded Systems ◽  
Digital Signature ◽  
Processing System ◽  
Application Integration ◽  
Prime Field ◽  
Vehicle Communication ◽  
Flexible System ◽  
Vehicle To Vehicle ◽  
Prime Fields ◽  
Dedicated Hardware

Growing ubiquity and safety relevance of embedded systems strengthen the need to protect their functionality against malicious attacks. Communication and system authentication by digital signature schemes is a major issue in securing such systems. This contribution presents a complete ECDSA signature processing system over prime fields for bit lengths of up to 256 on reconfigurable hardware. By using dedicated hardware implementation, the performance can be improved by up to two orders of magnitude compared to microcontroller implementations. The flexible system is tailored to serve as an autonomous subsystem providing authentication transparent for any application. Integration into a vehicle-to-vehicle communication system is shown as an application example.

VERIFICATION OF EMBEDDED SUPERVISORY CONTROLLERS CONSIDERING HYBRID PLANT DYNAMICS

2005 ◽  
Vol 15 (02) ◽  
pp. 307-312 ◽  
Author(s):  
SEBASTIAN ENGELL ◽  
SVEN LOHMANN ◽  
OLAF STURSBERG
Keyword(s):  
Model Checking ◽  
Embedded Systems ◽  
Timed Automata ◽  
Processing System ◽  
Hybrid Plant ◽  
Graph Grammars ◽  
Safety Properties ◽  
Hybrid Automaton ◽  
Plant Behavior ◽  
Hybrid Dynamics

This contribution proposes a link between the specification of supervisory controllers by Sequential Function Charts (SFC) and the verification of embedded systems with hybrid dynamics. The SFC are transformed into modular timed automata using a procedure based on graph grammars. The resulting controller model is composed with a hybrid automaton (with possibly nonlinear continuous dynamics) that models the plant behavior. In order to verify safety properties of the composed system algorithmically, a tool implementing the recently proposed approach of counterexample guided model checking is employed. The procedure is illustrated for a processing system example.

scholarly journals Design and Analysis of Power Efficient 64-Bit ALCCU

2019 ◽  
Vol 8 (2) ◽  
pp. 162-166
Keyword(s):  
Embedded Systems ◽  
High Speed ◽  
Low Voltage ◽  
Processing System ◽  
Hardware Description Language ◽  
Description Language ◽  
Power Efficient ◽  
Structural Style ◽  
Two Factors ◽  
Hardware Description

Speed of any system depends on mainly two factors known as frequency and parllel processing. Such high speed processing systems are required in real time embedded systems. The existed systems are operated with maximum of 2 to 3 GHz. The proposed 64-bit ALCCU is a high-speed processing system that will perform arithmetic, logical and code conversion operations. It is implemented in structural style with Verilog Hardware Description Language. This design is a high speed, low powered and will perform 32 operations. Its data size is 64_bit, implemented on xc7a100tcsg324-1 which is an Artix 7, 100K gate technology FPGA with a CSG 324 package. Satisfactory low power (less than 1W) has been observed with varying clock rates of ranging from 10 MHz to 20 GHz. The analysis is done with Low Voltage CMOS I/O standards from 1.2 to 3.3V range. The application of the proposed design can be used as an IP in high speed processors and controllers.

An AES processing system with a compact CPU core for secure communication in embedded systems

2012 ◽  
Author(s):  
Daisuke Tsutsumi ◽  
Isao Ohmura ◽  
Tsukasa Abe ◽  
Hitoshi Yoshimura ◽  
Kiyoshi Inagawa
Keyword(s):  
Embedded Systems ◽  
Secure Communication ◽  
Processing System

Research of Embedded Image Processing Based on ARM11 and SQLite

2013 ◽  
Vol 373-375 ◽  
pp. 1603-1606
Author(s):  
Chen Chen Liu
Keyword(s):  
Image Processing ◽  
Embedded Systems ◽  
Embedded System ◽  
Research Program ◽  
Processing System ◽  
Image Data ◽  
Store Image ◽  
Efficient Management ◽  
The Embedded System ◽  
Embedded Image

According to the fact that the embedded system is not efficient enough to access and manipulate image data, this paper put forward a research program of image JPEG compression algorithm and being stored in a combination based on the ARM11 and SQLite embedded database image processing system. Comparative Researches on the system without data prove that the program can make the embedded systems more reasonable to store image data and realize the localized efficient management of the image data, which has certain practical value.

Digital image processing methods applied to the study of annealing time on semiconductor-metal eutectic composites

1988 ◽  
Vol 46 ◽  
pp. 848-849
Author(s):  
J. Hefter
Keyword(s):  
Image Processing ◽  
Digital Image Processing ◽  
Digital Image ◽  
Electronic Device ◽  
Processing System ◽  
Average Diameter ◽  
Eutectic Solidification ◽  
Metal Silicide ◽  
The Matrix ◽  
Microscopic Studies

Semiconductor-metal composites, formed by the eutectic solidification of silicon and a metal silicide have been under investigation for some time for a number of electronic device applications. This composite system is comprised of a silicon matrix containing extended metal-silicide rod-shaped structures aligned in parallel throughout the material. The average diameter of such a rod in a typical system is about 1 μm. Thus, characterization of the rod morphology by electron microscope methods is necessitated.The types of morphometric information that may be obtained from such microscopic studies coupled with image processing are (i) the area fraction of rods in the matrix, (ii) the average rod diameter, (iii) an average circularity (roundness), and (iv) the number density (Nd;rods/cm2). To acquire electron images of these materials, a digital image processing system (Tracor Northern 5500/5600) attached to a JEOL JXA-840 analytical SEM has been used.

Digital Processing of STEM Images

1981 ◽  
Vol 39 ◽  
pp. 236-237
Author(s):  
A. V. Crewe ◽  
M. Ohtsuki
Keyword(s):  
High Resolution ◽  
Low Dose ◽  
Assembly Language ◽  
Processing System ◽  
Principal Component ◽  
Digital Processing ◽  
Image Analysis System ◽  
Black And White ◽  
Analysis System ◽  
Dose Imaging

We have assembled an image processing system for use with our high resolution STEM for the particular purpose of working with low dose images of biological specimens. The system is quite flexible, however, and can be used for a wide variety of images.The original images are stored on magnetic tape at the microscope using the digitized signals from the detectors. For low dose imaging, these are “first scan” exposures using an automatic montage system. One Nova minicomputer and one tape drive are dedicated to this task.The principal component of the image analysis system is a Lexidata 3400 frame store memory. This memory is arranged in a 640 x 512 x 16 bit configuration. Images are displayed simultaneously on two high resolution monitors, one color and one black and white. Interaction with the memory is obtained using a Nova 4 (32K) computer and a trackball and switch unit provided by Lexidata.The language used is BASIC and uses a variety of assembly language Calls, some provided by Lexidata, but the majority written by students (D. Kopf and N. Townes).

Software pattern recognition applied to nanodiffraction patterns from a STEM instrument

1986 ◽  
Vol 44 ◽  
pp. 694-695
Author(s):  
G.Y. Fan ◽  
J.M. Cowley
Keyword(s):  
Image Processing ◽  
Pattern Recognition ◽  
Computer Software ◽  
Processing System ◽  
Light Level ◽  
Host Computer ◽  
Low Light ◽  
Image Processing System ◽  
Recent Developments ◽  
On Line

In recent developments, the ASU HB5 has been modified so that the timing, positioning, and scanning of the finely focused electron probe can be entirely controlled by a host computer. This made the asynchronized handshake possible between the HB5 STEM and the image processing system which consists of host computer (PDP 11/34), DeAnza image processor (IP 5000) which is interfaced with a low-light level TV camera, array processor (AP 400) and various peripheral devices. This greatly facilitates the pattern recognition technique initiated by Monosmith and Cowley. Software called NANHB5 is under development which, instead of employing a set of photo-diodes to detect strong spots on a TV screen, uses various software techniques including on-line fast Fourier transform (FFT) to recognize patterns of greater complexity, taking advantage of the sophistication of our image processing system and the flexibility of computer software.

High-resolution measurement of birefringent fine structure in living cells using a new polarized light microscope

1995 ◽  
Vol 53 ◽  
pp. 54-55
Author(s):  
Rudolf Oldenbourg
Keyword(s):  
Light Microscope ◽  
Fluorescent Dyes ◽  
Polarized Light ◽  
Processing System ◽  
Video Camera ◽  
Molecular Organization ◽  
Computer Assisted ◽  
Image Recording ◽  
Birefringent Crystal ◽  
Technological Advances

The recent renaissance of the light microsope is fueled in part by technological advances in components on the periphery of the microscope, such as the laser as illumination source, electronic image recording (video), computer assisted image analysis and the biochemistry of fluorescent dyes for labeling specimens. After great progress in these peripheral parts, it seems timely to examine the optics itself and ask how progress in the periphery facilitates the use of new optical components and of new optical designs inside the microscope. Some results of this fruitful reflection are presented in this symposium.We have considered the polarized light microscope, and developed a design that replaces the traditional compensator, typically a birefringent crystal plate, with a precision universal compensator made of two liquid crystal variable retarders. A video camera and digital image processing system provide fast measurements of specimen anisotropy (retardance magnitude and azimuth) at ALL POINTS of the image forming the field of view. The images document fine structural and molecular organization within a thin optical section of the specimen.

Computer averaging of lattice images of poly-4-methyl-pentene-1 (P4mp1): Noise created artifacts

1987 ◽  
Vol 45 ◽  
pp. 388-389
Author(s):  
P. Pradère ◽  
J.F. Revol ◽  
R. St. John Manley
Keyword(s):  
Low Dose ◽  
Polymer Concentration ◽  
Processing System ◽  
Limiting Factor ◽  
Dilute Solution ◽  
New Techniques ◽  
Dose Unit ◽  
Lattice Images ◽  
Dose Imaging ◽  
Imaging Conditions

Although radiation damage is the limiting factor in HREM of polymers, new techniques based on low dose imaging at low magnification have permitted lattice images to be obtained from very radiation sensitive polymers such as polyethylene (PE). This paper describes the computer averaging of P4MP1 lattice images. P4MP1 is even more sensitive than PE (total end point dose of 27 C m-2 as compared to 100 C m-2 for PE at 120 kV). It does, however, have the advantage of forming flat crystals from dilute solution and no change in d-spacings is observed during irradiation.Crystals of P4MP1 were grown at 60°C in xylene (polymer concentration 0.05%). Electron microscopy was performed with a Philips EM 400 T microscope equipped with a Low Dose Unit and operated at 120 kV. Imaging conditions were the same as already described elsewhere. Enlarged micrographs were digitized and processed with the Spider image processing system.

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