Abstract: A method and apparatus are provided for transmitting content display data between a server and at least one client terminal, whereby said data are arranged into nodes of a hierarchical tree including at least one parent node and at least one son node, a displayable element being associated with each node. One such method includes the following steps in which: the server transmits a simplified representation of the tree to the client, said representation including, for at least some of the nodes, only information for locating the displayable element in the content to be displayed; the client terminal selects at least one node of interest from the simplified representation as a function of a criterion relating to the distance from the client to the displayable element that is associated with the node of interest in the content to be displayed; and geographical data are transmitted in order to enable said displayable element to be reconstructed for the selected nodes(s) of interest.

Abstract: The invention relates to an assembly comprising at least one hydraulic control valve and a body for receiving said hydraulic control valve, the hydraulic control valve including flow orifices and flow control means for putting the flow orifices selectively into hydraulic communication with one another. The hydraulic control valve is in the form of an oblong cartridge, the body includes an open housing adapted to receive the hydraulic control valve in removable manner such that when the hydraulic control valve is in place in the housing, the hydraulic control valve and the housing together define isolated hydraulic chambers into which the flow orifices of the hydraulic control valve open out.

Abstract: The invention concerns a method for transmitting data, called objects, via at least a communication network, between a server and at least a client terminal, at least a cache memory, designed to store at least some of said objects transmitted by the server, being associated, in said network, with at least one of said client terminals. The invention is characterized in that it consists in managing, upstream of said client terminals, at least a list of objects present in said cache memory associated with at least one of said client terminals, so as to limit exchange of data concerning the content of said cache memory between said client terminal and said server.