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AssigneesCentre National d'Etudes des Telecommunications, Etablissement Public de Diffusion dit "Telediffusion de France"
InventorsMichel Mathieu, Pierre Charbonnel, Jean-Claude Pacaud
Estimating the term…
The consequences of the loss of a packet are attenuated in a digital data communication apparatus using packet switching by structuring the digital data as multibit words into frames having a fixed length l and assembling the frames into packets all having the same predetermined length L=kl, where k is a predetermined integer. Continuity index words incremented by one each time a new frame or packet is assembled may be located into the frame locking word or the packet prefix. Then the number of packets which are lost may be determined at the receiver location by monitoring the successively received index words. When the digital data represent successive samples which are correlated, for instance when such samples represent a sound, substitution data may be generated at the receiver location and used in place of the missing data.
In a digital data communication apparatus including a sender location and a receiver location, a data insertion device located at said sender location, having means for structuring the digital data as multibit words into frames having a fixed length l and each preceded with a frame lock word of identifiable constitution and means for assembling said frames into short packets all have the same predetermined length L, with L=kl, where k is a predetermined integer programmed at said sender location and receiver location whereby said lock words have the same location in successive packets.
A digital data communication apparatus for data transmission between a sender location and a receiver location, comprising:
A process for digital data communication through a packet switching network, comprising:
Dependencies are inferred from the claim text.