Christophe Jean Jacques Devaucelle

Title: The Innovations of Christophe Jean Jacques Devaucelle

Introduction

Christophe Jean Jacques Devaucelle is a notable inventor based in Boudevilliers, Switzerland. He has made significant contributions to the field of technology, particularly in the area of communication systems. With a total of 4 patents to his name, Devaucelle continues to push the boundaries of innovation.

Latest Patents

One of his latest patents is a Doppler ranging system, which is an extension of the LoRa modulation with an improved ranging mode. In this system, a master and a slave device exchange requests and replies that contain sequences of chirps, which are carefully aligned in time, frequency, and preferably also phase. This alignment allows the master device to ascertain the propagation delay to the slave by demodulating the reply. The request and reply include chirps with different slopes, which permits an unbiased estimation of the Doppler shift.

Another significant patent is for a transmitter, receiver, and method for chirp-modulated radio signals. This invention features a LoRa transmitter and corresponding receiver where the detection sequence in the preamble is phase-modulated. It includes information that encodes the position in the preamble, such as a countdown index. Nodes that wake up to receive a scheduled download can determine how far the end of the detection sequence is and manage their energy consumption accordingly. The phase modulation is also compatible with legacy devices.

Career Highlights

Devaucelle is currently associated with Semtech Corporation, a company known for its innovative solutions in analog and mixed-signal semiconductors. His work at Semtech has allowed him to develop cutting-edge technologies that enhance communication systems.

Collaborations

One of his notable coworkers is Olivier Bernard André Seller. Their collaboration has contributed to the advancement of technologies in their field.

Conclusion

Christophe Jean Jacques Devaucelle is a prominent inventor whose work in communication technology has led to significant advancements. His innovative patents reflect his commitment to enhancing the efficiency and effectiveness of communication systems.