Patent ID: 8054888

Claim:
A system for converting a codec of image data, the system comprising: a syntax converter for converting Moving Picture Experts Group 4 (MPEG-4) syntax information of first image data to H.263 syntax information of second image data, wherein the syntax converter is configured to: compare first MPEG-4 syntax information to syntax information of an H.263 standard to determine matched MPEG-4 syntax information, discard the first MPEG-4 syntax information when the first MPEG-4 syntax information is not required in the H.263 standard, receive a value of the first MPEG-4 syntax information or a value of the H.263 syntax information from a user of a mobile terminal, generate second syntax information not included in the first MPEG-4 syntax information and which is required in the H.263 standard, and map the matched MPEG-4 syntax information and the second syntax information to the H.263 syntax information, wherein the H.263 syntax information comprises a field PTYPE having 13 bits, such that a first two bits of the 13 bits are set to ‘10’ and a last 11 bits of the 13 bits are mapped directly from a field PTYPE of the first MPEG-4 syntax information; and an H.263 decoder for decoding the H.263 syntax information to output image data in an H.263 format.