An MPEG-4 bitstream, which contains one or a plurality of encoded object data and management information for managing them, is input from a transmission path, and is demultiplexed by a demultiplexer into object data. An IPMP controller extracts time limit information that pertains to a time limit for...http://www.google.de/patents/US20010041061?utm_source=gb-gplus-sharePatent US20010041061 - Information processing apparatus and method
