This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Etablissement Public, Telediffusion De France, L'etat Francais, Represente Par Le Ministre Des Ptt (Cnet), Thomson Licensing. Active years: 1989-2010.
Company Filing History:
1 out of 2 
1 out of 3 
1 out of 3,481 
Years Active: 1989-2010
Title: Jean Chatel: Innovator in Image Compression and Digital Demodulation
Introduction
Jean Chatel is a notable inventor based in Rennes, France. He has made significant contributions to the fields of image compression and digital demodulation. With a total of 2 patents, his work has had a lasting impact on technology.
Latest Patents
One of his latest patents is a method of coding a video image stream with a view for subsequent recoding using the same type of code. This invention lies within the area of image compression coding, particularly of MPEG type, which utilizes recoding help data. The invention provides a solution for selectively reusing the help data. To achieve this, the invention incorporates an electronic signature that represents the constraints of the coder. This allows for the determination of whether the help data can be reused for subsequent coding under different constraints. Another significant patent is the digital double demodulator, which showcases his expertise in digital signal processing.
Career Highlights
Throughout his career, Jean Chatel has worked with several prominent organizations. He has been associated with the French State, represented by the Minister of Posts, Telecommunications, and Space (CNET), as well as the Public Establishment, Telediffusion de France. His work in these institutions has contributed to advancements in telecommunications and broadcasting technologies.
Collaborations
Jean has collaborated with notable colleagues, including Francoise Chassaing and Patrice Alexandre. Their joint efforts have furthered the development of innovative technologies in their respective fields.
Conclusion
Jean Chatel's contributions to image compression and digital demodulation highlight his role as a significant inventor in the technology sector. His patents and collaborations reflect a commitment to advancing technological solutions.