Location History:
- L'Hay-les-Roses, FR (1981)
- Montigny le Bretonneux, FR (1983 - 1984)
Company Filing History:
Years Active: 1981-1984
Title: Innovations of Emmanuel Lefort
Introduction
Emmanuel Lefort is a notable inventor based in Montigny le Bretonneux, France. He has made significant contributions to the field of electro-acoustic transducers, holding a total of 4 patents. His work focuses on enhancing audio technology and improving communication systems.
Latest Patents
One of Lefort's latest patents is an "Acoustic feedback cancelling electro-acoustic transducer network." This invention addresses the issue of oscillations caused by acoustic coupling between an acoustic-wave transmitter and a receiver. The design includes an electro-acoustic transducer apparatus that prevents these oscillations by carefully arranging the transducers in each network. The result is a system where the radiation pattern of the transmitter and the directivity pattern of the receiver are optimized to minimize interference.
Another significant patent is the "Anti-Larsen-effect arrangement in a telephone station." This invention features an anti-Larsen circuit that includes an automatic listening level control circuit. The system is designed to manage sound levels effectively, activating and deactivating based on specific sound-level thresholds. This innovation enhances the clarity and quality of communication in telephone systems.
Career Highlights
Emmanuel Lefort has worked with several companies throughout his career, including Telecommunications Radioelectriques Et Telephoniques and Telecommunications Radioelectrique Et Telephoniques. His experience in these organizations has allowed him to develop and refine his innovative ideas in the telecommunications sector.
Collaborations
Lefort has collaborated with notable individuals in his field, including Gilbert M Ferrieu and Francoise Moliere. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Emmanuel Lefort's contributions to the field of electro-acoustic transducers demonstrate his innovative spirit and dedication to improving communication technology. His patents reflect a deep understanding of acoustic systems and their applications in modern technology.