PhD Thesis

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« Asynchronous integrated systems and non-uniformly sampled signal processing ».

Author: L. Fesquet
Advisor: L. Fesquet
President of jury: E. Martin
thesis reviewer(s): M. Robert, O. Sentieys,
HDR Grenoble INP
Speciality: Electronique, électrotechnique, automatique
Defense: March 31 2008
ISBN: 978-2-84813-118-4


The studies presented in this HDR (Habilitation à Diriger des Re cherches) thesis result from a part of the CIS group activities at the TIMA laboratory. These researches have been focused on alternative techniques for designing signal processing and integrated systems (System-on-Chip).These works have demonstrated many times in many situations the asynchronous approach relevance. For instance, asynchronous techniques are suitable for designing reliable synchronization mechanisms, securing crypto-processors against side-channel attacks and easing designs in decananometric technologies where process variations, low-voltages and static leakage are challenging issues to address. The formalism of asynchronous design methods has also been studied in order to develop CAD tool for synthesizing Quasi-Delay Insensitive and micropipeline circuits. Finally a novel signal processing approach, fully compliant with the event-driven asynchronous logic principles, has been proposed. In particular, the researches show the benefits of non-uniformly sampled signals which are able to help reducing the integrated system power consumption by one to two orders of magnitude in the field of signal processing.

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