Most of existing field programmable gate array (FPGA) based watermarking algorithms have two primary weaknesses, large overhead and robustness. In this work, a robust low-overhead watermarking algorithm is proposed for intellectual property (IP) protection. The ownership is split into orderly small watermarks. The watermark positions are generated by the watermarks. Location mapping is performe...

The paper discuses the basic results from design and analysis of Field Programmable Gate Array (FPGA) based microcontroller for Voice Message (VM) system. The conditions that the system must answer, its architecture and instruction set are defined. The whole project, called VMCore, is implemented in VHDL and is tested on Altera ACEX 1K FPGA device.

This paper presents a real-time method to compensate for the variable cyclic error in a homodyne laser interferometer. The parameters describing the quadrature signals of the interferometer are estimated using simple peak value detectors. The cyclic error in the homodyne laser interferometer was then corrected through simple arithmetic calculations of the quadrature signals. A field programmabl...

We developed a highly integrated, Field Programmable Gate Array (FPGA)-based digital multi-frequency eddy current platform which is capable of detecting surface breaking and subsurface cracks in non-magnetic plates. Excitation signal generation, receiving signal demodulation, and USB communication were all implemented inside a Xilinx FPGA (Spartan III). Multi-frequency test results provide rich...

In this paper, a configurable single chip firing circuit for three phase motor speed control based on Field Programmable Gate Array (FPGA) hardware architecture is presented. The proposed circuit is designed, implemented and tested using MAX II PLD chip (EPM1270F256C5 device). The system has the advantages of being simple, flexible and low development cost with built-in self test. The experimen...

Design alternatives for DSP solutions As a designer of Digital Signal Processing systems, you have a large number of choices to implement your solution. Each solution has its strengths and weaknesses. The purpose of this chapter is to introduce Xilinx Field Programmable Gate Array (FPGA) technology and help you understand how FPGAs can be used for DSP system implementation. In the following sec...

Halftoning is a fairly slow process when executed by software on conventional processors. To speed up halftoning, a halftoning algorithm has been developed and integrated into a dedicated hardware architecture. This paper describes the implementation of the architecture with a XILINX Field Programmable Gate Array (FPGA) and compares its performances with results obtained by a software implement...

This paper presents a novel approach for the design and simulation of variable-speed drives when the control algorithm is to be implemented in an Field Programmable Gate Array (FPGA). The specialized Simulink tools used and the design procedure are presented. An application example using a Direct Torque Control (DTC) induction motor drive is presented and discussed. © 2003 IMACS. Published by E...

A spin-off foundation is hot topic for many R&D groups today. Key factors of a successful spin-off include good relationship between the company and the university, stable financing with own capital, mutual benefits for both parties and enthusiastic people. The presentation describes success story of an academic R&D group from its foundation, spin-off phase and five years on the market. The aca...