Digital data compression robust relative to transmission noise
AssigneesInria Institut National de Recherche, En Informatique Et En Automatique, Ecole Normale Superieure De Cachan
InventorsHerve Jegou, Christine Guillemot
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Abstract
The invention concerns a digital data compression encoder, characterized in that it comprises: an input for a first data flow (SH), and a second data flow (SL), an encoding module, matching symbols of the first data flow, and code words, wherein, for certain symbols, there exist several words, called redundant, corresponding to the same symbol, and a processing module for encoding the symbols of the first data flow based on the correspondence, by selecting among the redundant words, on the basis of at least part of the second data flow.
Claims18
Digital data compression encoder, characterized in that it includes:
- an input for a first data flow (SH), and a second data flow (SL),
- an encoding module, matching symbols of the first data flow and code words, wherein, for certain symbols, there exist several words, called redundant, corresponding to the same symbol, and
- a processing module for encoding the symbols of the first data flow based on the match, by selecting among the redundant words, on the basis of at least part of the second data flow.
Digital data compression method, characterized by the following steps:
- a. establishing a match between symbols of the first data flow and code words, wherein, for certain symbols, there exist several words, termed redundant, corresponding to the same symbol, and
- b. encoding the symbols of a first data flow based on the match obtained at step a., by selecting among the redundant words, on the basis of at least part of a second data flow.
Dependencies are inferred from the claim text.