Company Filing History:
Years Active: 2000-2004
Title: Innovations of Denis Jacques Ullmo
Introduction
Denis Jacques Ullmo is a notable inventor based in Palaiseau, France. He has made significant contributions to the field of wireless signal propagation, holding a total of 2 patents. His work focuses on improving the understanding and modeling of how wireless signals behave in indoor environments.
Latest Patents
Ullmo's latest patents include a method and apparatus for modeling the propagation of wireless signals in buildings. This innovative approach involves several distinct phases. The first phase estimates the mean wall separation of one floor of a building. The second phase involves estimating a reflection coefficient for the floor. The third phase gathers empirical data through trial RF propagation measurements. In the fourth phase, these measurements and estimates are integrated into a wireless propagation model. The fifth phase utilizes this model to predict RF signal strength throughout the floor from a base station. Finally, the sixth phase involves installing one or more base stations in the building based on the model's predictions. This process can be repeated for other buildings with similar characteristics.
Career Highlights
Denis Ullmo is associated with Lucent Technologies Inc., where he applies his expertise in wireless communications. His work has been instrumental in advancing the technology used for indoor wireless signal propagation.
Collaborations
Ullmo has collaborated with notable individuals in his field, including Harold Urey Baranger. Their joint efforts have contributed to the development of innovative solutions in wireless technology.
Conclusion
Denis Jacques Ullmo's contributions to wireless signal propagation modeling demonstrate his commitment to innovation in technology. His patents reflect a deep understanding of the complexities involved in indoor wireless communications.