Patent ID: 6711182
Filing Date: 2004-03-23
Classification: H04B,H04J,H04L

Abstract:
A method of preparing multimedia data for transmission comprising:multiplexing data from a plurality of sources (S1, . . . Si, . . . Sn), the multiplexing comprising, for each source (Si), classifying the data from the source (Si) into two or more classes (C1, . . . Cj, . . . Cm) according to the priority of the data, and mapping data from the sources into positions in a data structure (D) according both to the class (Cj) of the data and to a further priority assigned to the source (Si) from which the data originated, the division of data into classes (C1, . . . Cj, . . . Cm) and/or the prioritisation of the sources (S1, . . . Si, . . . Sn) being done according to the potential impact of transmission errors on the data; and sub-dividing the data in the data structure (D) into frames whilst preserving the relative prioritisation of the data.