Albert Roseiro

Title: Albert Roseiro: Innovator in Digital Modulation

Introduction

Albert Roseiro is a notable inventor based in Courbevoie, France. He has made significant contributions to the field of digital modulation, holding two patents that showcase his innovative approach to signal processing.

Latest Patents

Roseiro's latest patents include a "Digital modulation process and modulator implementing the process" and a "Method of digital demodulation." The digital modulation process involves converting successive symbols of a digital stream into phase increments, which are then accumulated. A modulating phase is obtained by filtering the accumulated phase, resulting in a complex signal that represents the modulating phase. This complex signal is used to modulate two quadrature radio waveforms, which are combined to transmit a radio signal. The method emphasizes efficient modulation with minimal envelope variations, reducing adjacent channel interference and maintaining a low error rate. The method of digital demodulation involves performing multiple separate demodulations to estimate binary symbols, enhancing the accuracy of the received signals.

Career Highlights

Throughout his career, Albert Roseiro has worked with prominent companies such as EADS Defence and Security Networks and Matra Communication. His experience in these organizations has contributed to his expertise in digital communication technologies.

Collaborations

Roseiro has collaborated with notable colleagues, including Gérard Marque-Pucheu and Fabrice Belveze. These partnerships have likely enriched his work and led to advancements in the field of digital modulation.

Conclusion

Albert Roseiro's contributions to digital modulation and signal processing demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving communication technologies, making a lasting impact in the industry.