Distributing digital-works and usage-rights to user-devices

摘要: Method and apparatus for automatically distributing, as needed, a user's digital-works usage-rights to one or more user-devices. A definition of the digital-work may be stored at locations on network. version said suitable user-device provided by When user who is authorized utilize active user-device, authorization transferred when needed user-device. The any where an active. only valid specific users. usage each less than defined in full maintained Authorization extended from time exchanging status across Digital-works are that using.