Abstract: The invention proposes a method of filtering a bitstream according to user specifications. The proposed method uses a semantic description and a syntactical description of the bitstream. The semantic description is scanned to select the elementary units that match the user specification. The time is used as a linking mechanism between the semantic description and the syntactical description to locate the elements of the syntactical description that are to be removed. A filtered syntactical description is generated by removing the located elements. Finally, a filtered bitstream is generated from the filtered syntactical description.

Abstract: A method of transferring a file includes generating a version of an object version at the source entity as a function of the profile of the destination entity (e.g., screen, calculation capacity, storage). A basic document is basic version of the object described in a document written in a markup language (e.g., XML). One or more transformations are defined (for example into the XSL format). The application of a transformation to the basic document allows generation of a transformed document. An adapted version of the object is generated from the transformed document.

Abstract: The invention proposes a method of issuing a bit stream organized in fields according to a certain bit stream format. Each field of the bit stream has a value and semantics. According to the invention the field semantics is issued with the value of the field when the bit stream is displayed so as to provide a version of the bit stream that is human-readable. According to the invention, a schema is proposed that, in addition to generically describing the bit stream format, also comprises components containing said field semantics. This schema is used by a parser for syntactically analyzing an input bit stream to be displayed, thereby generating a structured description of said bit stream. A transformation is then applied to the structured description to generate a document formatted for display.

Abstract: The invention proposes a method of filtering a bitstream according to user specifications. The proposed method uses a semantic description and a syntactical description of the bitstream. The semantic description is scanned to select the elementary units that match the user specification. The time is used as a linking mechanism between the semantic description and the syntactical description to locate the elements of the syntactical description that are to be removed. A filtered syntactical description is generated by removing the located elements. Finally, a filtered bitstream is generated from the filtered syntactical description.

Abstract: It is an object of the invention to propose a method of transferring a file containing a certain version of an object (for example, a multimedia object such as an image, audio or video) from a source entity (for example, a server) to a destination entity (for example, a client), said version being generated at the level of the source entity as a function of the profile of the destination entity (screen, calculation capacity, storage . . . ).