The invention relates to a key frame such as a KeyFrameDS. A list of key, length, and value (KLV) attribute groups are used in the KeyFrameDS. The KeyFrameDS may be modified by changing, for example, an attribute group. This may be accomplished, for example, by changing one of its attributes, such as...http://www.google.fr/patents/US6845487?utm_source=gb-gplus-shareBrevet US6845487 - Method and an apparatus for implementing a key frame
Method and an apparatus for implementing a key frame