Abstract:
The access method comprises the following steps: i) receiving a notification indicating the presence of at least one digital document available on the network, said notification comprising at least one executable command adapted to detect whether the recipient client device comprises a local application capable of processing the digital document, ii) executing the command or commands in order to detect the local application, and iii) in case of positive detection, accessing the digital document from a local server whereas in case of negative detection, accessing the document from the address of a remote server.
Abstract:
A central server in a network of a hybrid peer to peer type, receives a request from a client for obtaining a digital document, where the request contains a reference of the digital document. The server selects a peer system of the network likely to contain the digital document, and generates an access key for controlling access to the digital document by the client, where the access key is generated by an encrypting method using a private key of the central server, a current time when the encrypting method is executed and an address of the client on the network. The server then sends a message to the client, where the message has the reference of the digital document, an address of the selected peer system on the network and the generated access key.
Abstract:
A method of allocating at least one service by a first peer (E) to a second peer (D), the peers being linked by means of a computer communication network, the first and second peers belonging respectively to a first and second group of peers adapted to share data, comprises the following steps: evaluating (E63) a distance (d0) between the first peer (E) and the second peer (D); and selecting (E65) a service allocated by the first peer (E) according to the value (d0) of the distance.
Abstract:
The method of asynchronous delivery of digital data according to the invention is implemented in at least one server system and at least one client system connected via a network.According to the method, at the time of a request for data coming from a client system, an item of context information (CINF) representing a first state of the client system on sending out the request is associated with the latter.On delivering to the client system a response, the response incorporates the context information (CINF).The client system is adapted to put itself in a second state analogous to the first state mentioned above, in accordance with the context information (CINF, CUID).The method according to the invention provides context management enabling the user to associate the responses received with requests sometimes made well beforehand.
Abstract:
The access method comprises the following steps: i) receiving a notification indicating the presence of at least one digital document available on the network, said notification comprising at least one executable command adapted to detect whether the recipient client device comprises a local application capable of processing the digital document, ii) executing the command or commands in order to detect the local application, and iii) in case of positive detection, accessing the digital document from a local server whereas in case of negative detection, accessing the document from the address of a remote server.
Abstract:
This method of distributing a document comprises: a step of receiving a request for obtaining the document; a step of controlling the access rights to the document; the distribution of the document if it is available locally and access thereto is authorized; and the sending of the address of a second system likely to contain this document in the contrary case.
Abstract:
In a method of controlling a document sharing support apparatus, there is received information representing the fact that a first computer is storing at least a low-resolution version of a document, and the low-resolution version of the document is acquired and stored. There is received a request for obtaining the document from a second computer, and the low-resolution version of the document in memory is made available to the second computer.
Abstract:
The method of asynchronous delivery of digital data according to the invention is implemented in at least one server system and at least one client system connected via a network. According to the method, at the time of a request for data coming from a client system, an item of context information (CINF) representing a first state of the client system on sending out the request is associated with the latter. On delivering to the client system a response, the response incorporates the context information (CINF). The client system is adapted to put itself in a second state analogous to the first state mentioned above, in accordance with the context information (CINF, CUID). The method according to the invention provides context management enabling the user to associate the responses received with requests sometimes made well beforehand.
Abstract:
A sequence of digital images encoded according to a predictive format is decoded using encoded auxiliary data which is representative of at least part of the sequence of digital images. A current encoded image, received with at least one detected error, is decoded. The decoding includes applying an error concealment decoding on at least part of the current encoded image containing such a detected error to obtain a first decoded image. An item of information representative of reconstruction errors is obtained based upon a reconstruction confidence of the error concealment decoding for at least one pixel of the error-containing part of the current image. The encoded auxiliary data and the first decoded image are processed based upon the item of information representative of reconstruction errors to obtain corrected auxiliary data. The first decoded image is modified to obtain a second decoded image based upon the corrected auxiliary data.
Abstract:
The method of computing the available space in a packet for data stream transport comprises: a step of determining the requirements of each module of a data stream manager, for space in the packet for at least two types of header and/or extension data required by each protocol and/or service used by said module, a step of determining a maximum space requirement in the packet to meet all these requirements, by implementing different rules for combining space requirements for the different types of data and a sum of the combined requirements for the different types of data and a step of computing a difference between the space of the packet and the maximum space requirement in the packet in order to determine the available space for data stream transport.