| 摘要 |
A method and apparatuses are disclosed for compressing digital data before transmitting it from a communications device of a first party to a communications device of a second party. There is maintained (302, 303) a collection of digital data (105, 115) that represents an archive of information (104,114, 201) that has been exchanged between the first party and the second party. When new information (202) to be transmitted from the communications device of the first party to the communications device of the second party is composed (308), it is represented as digital data. Said digital data is compressed (311) by utilizing correspondences between the new information (202), so that at least some of the resulting compressed digital data (203) refers to information in said archive (201).
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