Abstract: The invention relates to an aqueous polymer dispersion, with said polymer comprising, in its structure, monomer units incorporated from a composition of monomers comprising: a) at least one (meth)acrylic monomer which is a C1-C18 (meth)acrylic ester, without any ionic group, b) at least one ethylenically unsaturated monomer carrying at least one carboxylic acid group, c) at least one ethylenically unsaturated monomer carrying a tertiary amine, and with said polymer additionally carrying grafted blocked silane groups in the —Si(OR1)3 or —Si—R2(OR1)2 or —Si—(R2)2(OR1), with R1, R2 being an identical or different C1 to C4 alkyl, and with said grafted blocked silane groups being incorporated by at least one or two routes or their combination. The invention also relates to a coating composition comprising said dispersion of the invention and to its use for aqueous protective coating compositions for wood.

Abstract: Information collecting system wherein at least an Application Service Provider (ASP) provides services to a user through an Internet network and wherein there are at least an access network to which is connected the user and an Internet Service Provider (ISP) network connected to each access network by a RADIUS client, the Internet network being connected to the ISP network by a proxy. This system comprises a RADIUS Client Agent (RCA) connected to the ISP network and adapted to collect information about parameters of the connection of the user to the system, and at least a Provisioning Proxy Agent (PPA) adapted to receive the information from the RCA and to add this information in the request sent by the user to the ASP.

Abstract: Information collecting system wherein at least an Application Service Provider (ASP) provides services to a user through an Internet network and wherein there are at least an access network to which is connected the user and an Internet Service Provider (ISP) network connected to each access network by a RADIUS client, the Internet network being connected to the ISP network by a proxy. This system comprises a RADIUS Client Agent (RCA) connected to the ISP network and adapted to collect information about parameters of the connection of the user to the system, and at least a Provisioning Proxy Agent (PPA) adapted to receive the information from the RCA and to add this information in the request sent by the user to the ASP.

Abstract: A system and method for controlling the time occupation of signalling frequencies is disclosed, in a frequency hopping system including a plurality of remote stations communicating under control of transceivers with a transceiver of a base station, such communication being performed over a shared medium through a sequence of frequency hopping periods in a plurality of operating frequencies. The method consists in selecting a set of signalling frequencies among the operating frequencies, and interleaving signalling messages transmitted on each signalling frequency within each frequency hopping period to allow a remote station to enter the network for the first time or by re-acquiring synchronization, by scanning each signalling frequency for receiving a signalling message.

Abstract: In a multicellular communications network system comprising base stations and a plurality of remote stations, a remote station listens for frames of information emitted by the different base or remote stations, in order to insert the network. The base stations and the remote stations comprise means for emitting the frames of information using a sequence of changing frequency hops of different operating frequencies. The remote station determines a set of "n" operating frequencies (Fi), from which it sequentially listens for a fixed period of time equal to 1/n of the frequency hopping period (FH) of a base station. When a frame of information is received by the remote station during one of the fixed period, the information is collected and processed in order to select the base station for attachment.