Patent ID: 7370115

Claim:
A method of controlling a terminal of an MPEG-4 system, the method comprising: identifying an object to be cached; caching the object from a server and storing the same in a cache; receiving a request to reproduce a requested object and determining whether the object stored in the cache includes the requested object; and reproducing the requested object from the object stored in the cache, if the requested object is stored in the cache, wherein the identifying comprises identifying a predetermined priority of the streams to be transmitted from the server, wherein the identifying comprises identifying the object to be cached according to kinds of streams to be transmitted from the server, wherein the priority assigns a higher priority to a scene description stream and an object descriptor stream as compared to a visual stream and an audio streams; requesting a transmission of the requested object from the server if the requested object is not the object stored in the cache; reproducing a received object from the server if the object requested to be transmitted from the server is received; and storing the data of the received object in the cache if the received object data as reproduced is determined as the object to be cached.