05629980 is referenced by 1201 patents and cites 35 patents.

A system for controlling use and distribution of digital works. In the present invention, the owner of a digital work attaches usage rights to that work. Usage rights are granted by the "owner" of a digital work to "buyers" of the digital work. The usage rights define how a digital work may be used and further distributed by the buyer. Each right has associated with it certain optional specifications which outline the conditions and fees upon which the right may be exercised. Digital works are stored in a repository. A repository will process each request to access a digital work by examining the corresponding usage rights. Digital work playback devices, coupled to the repository containing the work, are used to play, display or print the work. Access to digital works for the purposes of transporting between repositories (e.g. copying, borrowing or transfer) is carried out using a digital work transport protocol. Access to digital works for the purposes of replay by a digital work playback device (e.g. printing, displaying or executing) is carried out using a digital work playback protocol.

Title
System for controlling the distribution and use of digital works
Application Number
8/344042
Publication Number
5629980
Application Date
November 23, 1994
Publication Date
May 13, 1997
Inventor
Michalene M Casey
Morgan Hill
CA, US
Mark J Stefik
Woodside
CA, US
Agent
Richard B Domingo
Assignee
Xerox Corporation
CT, US
IPC
G06F 11/34
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