CONTENT DOWNLOAD SYSTEM, CONTENT DOWNLOAD METHOD, CONTENT SUPPLYING APPARATUS, CONTENT SUPPLYING METHOD, CONTENT RECEIVING APPARATUS, CONTENT RECEIVING METHOD, AND PROGRAMME Russian patent published in 2011 - IPC H04H60/23 H04N7/167 H04L9/14 

FIELD: information technology.

SUBSTANCE: disclosed is a content download system comprises: a content supplying device, a content receiving device, a download apparatus designed to download encrypted content and playing control data necessary for playing said content from said content supplying device according to user operations; obtaining apparatus to confirm the existence of a license which includes a key for decrypting said encrypted content based on said playing control data when playing said downloaded content, and to obtain said license according to the confirmation result; and playing apparatus to play said encrypted content using said obtained license. Playing control metafile describes <content_title>, <drm_server_uri>, <license_id>, <license_type>, <license_description>, <user_confirmation>, <user_messsage>, and <price>. In the case when multiple licenses are set for a single content, the items <license_id> through <price> describe only the number of set licenses.

EFFECT: design of a system which provides different content downloading service modes.

17 cl, 45 dwg