Method and apparatus for dynamically assigning usage rights to digital works

US6754642B2 · kind B2 · utility

Assignee

• CONTENTGUARD HOLDINGS, INC. · US

Inventors

• Bijan Tadayon · Germantown, US
• Aram Nahidipour · Mill Creek, US
• Xin Wang · Los Angeles, US
• Michael Raley · Downey, US
• Guillermo Lao · Torrance, US
• Thanh Ta · Tecate Mission Road, US
• Charles Gilliam · Darien, US

Key dates

• Filing date: May 31, 2001
• Grant date: Jun 22, 2004
• Expiry date: Apr 23, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G07F17/16
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

Usage rights to digital content are dynamically assigned. Various dynamic conditions are monitored and the usage rights are adjusted in a predetermined manner based on the status of dynamic conditions. The dynamic conditions include the time of day, the load on a server or network, or the like. The resolution of an image can be determined based on the conditions and the image can be rendered using subband decomposition techniques to permit variable resolution images to be constructed on the fly.