In this paper, we propose a software-oriented method for generating multiple pulse width modulation channels from the parallel port of a computer without using any additional interface. We have developed an algorithm to modulate different signals that may come from different sources and generate the corresponding modulated signals on the parallel port of a computer. Our approach is tested in re...

IR Sensor Based Fiber Communication System For Stepper Motor Control Using PWM Controlling Sequence/Signal. The Circuit Is Based On Optical Transmission & Can Be Operated With High Speed Fiber Connection or Properly Aligned IR Wireless Link.

This paper describes a complete silicon implementation of an Arti cial Neural Network based on Coherent Pulse Width modulation techniques. A chip set with di erent neural functions has been designed, manufactured and tested. Neural circuits have been optimized for lowest computation energy and highest recon gurability.

We present a voice morphing strategy that can be used to generate a continuum of accent transformations between a foreign speaker and a native speaker. The approach performs a cepstral decomposition of speech into spectral slope and spectral detail. Accent conversions are then generated by combining the spectral slope of the foreign speaker with a morph of the spectral detail of the native spea...

A previous paper described LWIR Pupil Imaging with a sensitive, low-flux focal plane array, and behavior of this type of system for higher flux operations as understood at the time. We continue this investigation, and report on a more detailed characterization of the system over a broad range of pixel fluxes. This characterization is then shown to enable non-uniformity correction over the flux ...

Due to great value of the time constant of the integrator circuit, a hardware defined PWM (Pulse Width Modulation) signal makes it possible to build a Digital to Analog Converter (DAC) characterized by a relatively long response time. An attempt at creating the software defined PWM signal leads to increased response time of the DAC converter with a coefficient several hundred times longer than ...

This paper presents a technique to improve the performance of laser phase-shift range finders. The phase measurement is performed by using a new method to extract the phase-shift data from the peak of received and transmitted intermediate frequency signal amplitudes. The pulse width modulation is used to minimize the noise effect and enhance the signal amplitude measurement. The advantages of p...

By using a non linear discrete time model, this paper shows how to predict bifurcations in a two cells chopper and analyses the road to chaos. Equilibrium points and their stability are investigated in an analogical way to determine the nature of the bifurcations. The global behaviour is studied by using bifurcation diagrams showing collisions between fixed points and borderlines. The border co...

A novel overmodulation strategy for space-vector pulsewidth modulated (PWM) inverters is proposed. The method, which increases the range of linear control of the output voltage by 10%, is based on Fourier series representation of the reference voltage.

GFDM is a new modulation format whose advantages compared to OFDM reportedly make it a preferable modulation format for 5G. However, the non-orthogonal nature of GFDM with matched filtering (MF) receiver for pulses with good time-frequency localization is one of its disadvantages, leading to the proposal of WCP-COQAM, employing offset quadrature amplitude modulation (OQAM). In this paper, we pr...