Daniel Pommier

Title: The Innovations of Daniel Pommier

Introduction

Daniel Pommier is a notable inventor based in Mordelles, France. He has made significant contributions to the field of digital sound broadcasting, holding a total of four patents. His work has advanced the way sound is transmitted alongside television signals, showcasing his innovative approach to technology.

Latest Patents

One of Pommier's latest patents involves a method of digital sound broadcasting in television channels. This method allows for the digital broadcasting of a sound program within a set of channels. In this system, each channel, apart from the one dedicated to digital broadcasting, has a spectrum of spectral lines separated by low spectral power density intervals. The digital broadcast is achieved through digital modulation, such as Orthogonal Frequency-Division Multiplexing (OFDM), utilizing frequency multiplexing with a spectrum interlaced with that of the television. The digital signal is then recovered by comb filtering upon reception. Another significant patent focuses on multiplex channels for continuous flow of numerical signals. This system is particularly useful in videotex or teletext transmission, where data is transmitted during intervals between segments of video signals. The inventive system employs a continuous transmission carrier, with multiple data packs included in each block of data that is periodically transmitted. Synchronization bit patterns are used to ensure accurate data transmission.

Career Highlights

Throughout his career, Daniel Pommier has worked with prominent organizations such as the Public Establishment of Diffusion, known as Telediffusion de France, and the French State, represented by the Secretariat of State for Posts and Telecommunications. His experience in these institutions has contributed to his expertise in digital broadcasting technologies.

Collaborations

Pommier has collaborated with notable individuals in his field, including Joseph Blineau and Claude Thomas. Their joint efforts have likely fostered innovation and advancements in the technologies they have worked on together.

Conclusion

Daniel Pommier's contributions to digital sound broadcasting reflect his innovative spirit and dedication to advancing technology. His patents and career achievements highlight the impact he has made in the field, paving the way for future developments in sound transmission.