Guaranteeing fast access to Web
pagesThe reception of real-time or prerecorded video clips or radio on a personal computer (webcasting) still poses a major problem of network overload. The Activia Networks company launched in April 2000 intends to solve this problem by duplicating the information in strategic places and bringing it as close as possible to the final user. To achieve this goal, the company’s founders, engnk Lyonnet and Laurent Gautier, are proposing a technology that they developed during their doctoral work at INRIA (former project Rodéo, now Planète initiative) and during a start-up creation post-doctoral stay. This technology makes it possible to create a virtual private network on top of the Internet. This network features dynamic routing to find the shortest path to access the closest server that offers the information. The start-up was supported by INRIA-Transfert and has a license contract with INRIA.
engnk Lyonnet, Activia Networks
Tél. : + 33 4 97 23 46 46,
engnk.lyonnet@activia.net
http: //www.activia.net
Routing in the stars Created in Sophia-Antipolis on June 1, 2000, the UDcast company proposes routers specializing in unidirectional links, in particular for digital satellite links and ground-based digital radio links. The company uses a technology developed by its founding team, who come in large part from project Rodéo (now become Planète initiative) at INRIA. This technology can be used to integrate unidirectional links to the Internet in a way that is transparent to the IP protocol. It is thus possible to best exploit the characteristics of such links, in particular their ability to transmit multicast data. UDcast just signed an exclusive license contract with INRIA for three years.
Luc Ottavj, UDcast
Tél. : + 33 4 92 38 77 21,
luc.ottavj@udcast.com
Infobjects: chameleon databasesExploiting a database in a context different from that for which it was designed most often poses insurmountable problems. The original structure of the database turns out to be incompatible with the desired utilization. An elegant solution to this problem is proposed by the ObjectDRIVER software developed by a Cermics* team. This software makes it possible to transform a database into a virtual base using a correspondence scheme. The virtual base is adapted to new applications such as electronic commerce or database sharing. Researchers from this team founded the Infobjects company last April to develop this technology. With the support of INRIA-Transfert, Infobjects signed a contract with INRIA and ENPC that gives them authorization to exploit, market and extend the software.
*Joint Ecole nationale des ponts et chaussées (ENPC) and INRIA laboratory
