Philippe Jouen

Title: The Innovations of Philippe Jouen

Introduction

Philippe Jouen is a notable inventor based in Grenoble, France. He has made significant contributions to the field of RF integrated circuits, holding 2 patents that showcase his expertise and innovative spirit. His work primarily focuses on enhancing the performance and efficiency of frequency synthesizers and phase-locked loops.

Latest Patents

One of Jouen's latest patents is an RF integrated circuit comprising a frequency synthesizer that is not very sensitive to injection locking. This invention relates to a frequency synthesizer that supplies an output signal of adjustable frequency to a QAM modulator, allowing for the formation of a carrier signal. The synthesizer utilizes a Vernier effect, incorporating an auxiliary frequency synthesizer and a main frequency synthesizer with a phase-locked loop bandwidth that is at least two times higher than the frequency step of the auxiliary signal.

Another significant patent involves a phase-locked loop with high frequency adjustment of the operating range of the oscillator. This invention includes an oscillator controlled by a comparison circuit that filters a control signal through a low-pass filter. The control and adjustment circuit takes into account the filtered control signal and adjusts the oscillator's operating range if necessary. An inhibition circuit is also included to deactivate the comparison circuit for a predetermined duration before considering the control signal.

Career Highlights

Philippe Jouen is currently employed at STMicroelectronics, a leading company in semiconductor solutions. His work at STMicroelectronics has allowed him to collaborate with other talented professionals in the field, further enhancing his contributions to technology.

Collaborations

Some of his notable coworkers include Michael Kraemer and Serge Ramet, who have worked alongside Jouen on various projects, contributing to the advancement of RF technology.

Conclusion

Philippe Jouen's innovative work in RF integrated circuits and phase-locked loops has made a significant impact in the field of electronics. His patents reflect a deep understanding of complex systems and a commitment to advancing technology.