Abstract:
The invention relates to a central server stations controlling access to a collection of digital data created by a client station. The server station receives, from the client station, a request to validate a collection of digital data, where the request contains the collection which has a collection identifier and for each data item belonging to the collection, a data identifier designating said data item, and at least one representation of said data item, the representation being chosen depending on said data item and on the collection identifier. For each data identifier received, a representation of the data item is locally obtained depending on the data item and on the collection identifier of the received collection associated with the collection. A comparison is made between the received representation and the obtained local representation and, in a case where the comparison results in a match, the digital data item to be shared is validated.
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:
The method of controlling access to a collection of digital data created by a client station, said method being implemented on a central server station in a communication network of the hybrid station-to-station type, comprises the steps of: receiving, from the client station, a request to validate a collection designated by a collection identifier and comprising, for each data item belonging to the collection, a data identifier designating said data item and at least one chosen representation of said data item; for each data identifier thus received, locally obtaining a representation of the data item associated with the said collection; and comparing the representation thus received with the local representation and, in the case of positive comparison, validating said digital data item to be shared.
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 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 order to share digital data in a peer to peer communication network, a partial version of the data is firstly transmitted to destination stations, and: a collection of data is created in which an identifier is associated with each data item and to each data identifier there is allocated a label indicating whether the complete version of the data item is available on the network; the existence of the collection is notified to at least one destination station; and, on the reception of information on availability on the network of the complete versions of the data of the collection: the collection is updated; and the updating of the shared collection is notified to the destination station or stations.
Abstract:
A method is disclosed for transmitting a multi-channel data stream comprising frames comprising a plurality of channels, the transmitting being done via a multi-transport tunnel from a first tunnel end-point to a second tunnel end-point, the multi-transport tunnel implementing at least one first carrier supporting a transport protocol with acknowledgement and at least one second carrier supporting a transport protocol without acknowledgement.More specifically, the invention proposes to introduce a delay in the sending of data ( >) via the first carrier as compared with the sending of data ( >) via the second carrier. Thus the invention guarantees the order of arrival of channels that are associated with a same piece of synchronization but are transmitted on distinct first and second carriers and come from the separation of a same multi-channel data frame.
Abstract:
In order to share digital data in a peer to peer communication network, a partial version of the data is firstly transmitted to destination stations, and: a collection of data is created in which an identifier is associated with each data item and to each data identifier there is allocated a label indicating whether the complete version of the data item is available on the network; the existence of the collection is notified to at least one destination station; and, on the reception of information on availability on the network of the complete versions of the data of the collection: the collection is updated; and the updating of the shared collection is notified to the destination station or stations.
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.