Patent ID: 7113643
Filing Date: 2006-09-26
Classification: H03M,H04N

Abstract:
1. A method of forming a derived digital signal from a compressed digital signal which has been obtained by compressing an original digital signal including original data representing physical quantities and grouped together in blocks of data ordered in the original signal, said method comprising the steps of: obtaining information contained in the compressed digital signal and representing a structure of the signal and an organization of the data therein; and forming, from the information, a skeleton of the derived digital signal which at least partly includes the information and at least one header and one body intended to subsequently contain compressed blocks of data, the skeleton thus formed being in accordance with a description syntax of the compressed signal, said method further comprising the steps of: obtaining at least one block of data from the compressed digital signal; and inserting the block of data in the body of the skeleton of the derived digital signal.