Patent ID: 8073975
Filing Date: 2011-12-06
Classification: H04L

Abstract:
1. A method of synchronizing side information for use within an interactive compression system including a mobile communication device and a server, the method comprising: comparing at least a portion of a hierarchical node index received at one of the mobile communication device and the server to a stored hierarchical node index stored at the other of the mobile communication device and the server, the at least a portion of the hierarchical node index and the stored hierarchical node index each including a number of nodes, at least some of which index, point to, or contain side information defining parameters for use in the compression and decompression of data; identifying common side information by identifying common nodes that are common to both the at least a portion of the hierarchical node index and the stored hierarchical node index, the common side information including compression state information, known to both the mobile communication device and the server, the compression state information including parameters of one or more previously completed compressions for use in interactive compression between the mobile communication device and the server; and creating a common hierarchical node index including the common nodes; sharing the common hierarchical node index between the mobile communication device and the server.