System for controlling the distribution and use of digital works using digital tickets
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United States of America Patent
Stats
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Mar 16, 2004
Issued Date -
N/A
app pub date -
Feb 7, 2001
filing date -
Nov 23, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a 'digital ticket' is used to entitle the ticket holder to exercise some usage right with respect to a digital work. Usage rights are used to define how a digital work may be used or distributed. Each usage right may specify a digital ticket which must be present before the right may be exercised. Digital works are stored in repositories which enforce a digital works usage rights. Each repository has a 'generic ticket agent' which punches tickets. In some instances only the generic ticket agent is necessary. In other instances, punching by a 'special ticket agent' residing on another repository may be needed.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CONTENTGUARD HOLDINGS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Pirolli, Peter L T | El Cerrito, CA | 58 | 4276 |
Stefik, Mark J | Portola Valley, CA | 149 | 10719 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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