A download control program of a client terminal transmits a request to a download server, which stores Download Descriptors that include attribution information of contents, for a Download Descriptor, and receives the Download Descriptor from the download server. The download server, before transmitting...http://www.google.co.jp/patents/US7401065?utm_source=gb-gplus-share特許 US7401065 - System for downloading contents, and client terminal for downloading contents from contents server
