Demarcated digital content and method for creating and processing demarcated digital works

US6973445B2 · 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

Key dates

• Filing date: May 31, 2001
• Grant date: Dec 6, 2005
• Expiry date: Mar 8, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q20/382
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

Flags are used to mark portions of content in a digital work to permit marking or demarcation of portions of the document. The demarcated portions can be handled in various ways. For example, different usage rights can be applied to demarcated portions, the demarcated portionis can be culled for use as a summary, or the like. The flags can be used to demarcate portions of content that has been downloaded to keep track of payment and download status and thus add flexibility to electronic distribution of content. A flag usage rights element can be attached to limit and control access to flags in a desired manner.