US5867579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for data copyright management system
Assignee: Piracy Protection LLC
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Filing: 1997-01-10
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Granted: 1999-02-02
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Expires: 2017-01-10
Abstract
Abstract A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM, and RAM. The ROM, EEPROM, and RAM are connected to the CPU bus, and a system bus of a device which utilizes the data can be connected to the CPU bus. A data copyright management system program, crypt algorithm, and user information are stored in the ROM, and a first public-key, a first private-key, a second public-key, a second private-key, a first secret-key, a second secret-key, and copyright information are stored in the EEPROM. The data copyright management apparatus may be configured in the form of a monolithic or hybrid IC, a thin IC card, PC card, insertion board, and further, may be incorporated in a computer, television set, set-top box, digital video tape recorder, digital video disk recorder, digital audio tape apparatus, or personal digital assistants, and the like.
Inventors
- 👤 Makoto Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:28
CPC Classifications
G; G06; G06Q; G06Q20/00; G06F; G06F21/00; G06F21/10; G06F21/109; G06Q20/02; G06Q20/04; G06Q20/06; G06Q20/08; G06Q20/12; G06Q20/123; G06Q20/1235; G06Q20/30; G06Q20/36; G06Q20/363; G06Q20/38; G06Q20/382; G06Q20/3823; G06Q20/3829; G06T; G06T1/00; G06T1/0021; G07; G07F; G07F7/00; G07F7/08; G07F7/0866; G07F7/10; G07F7/1016; H; H04; H04L; H04L63/00; H04L63/04; H04L63/0428; H04L63/0442; H04L63/0464; H04L63/06; H04L63/062; H04L63/12; H04L63/126; H04N; H04N21/00; H04N21/20; H04N21/23; H04N21/234; H04N21/2347; H04N21/25; H04N21/254; H04N21/2541; H04N21/40; H04N21/41; H04N21/418; H04N21/4181; H04N21/426; H04N21/43; H04N21/433; H04N21/4334; H04N21/44; H04N21/4405; H04N21/4408; H04N21/45; H04N21/462; H04N21/4623; H04N21/4627; H04N21/80; H04N21/83; H04N21/835; H04N7/00; H04N7/16; H04N7/167; H04N7/1675; G06F2211/00; G06F2211/007; G06F2211/008; G06F2221/00; G06F2221/21; G06F2221/2107
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
145 words
A data copyright management apparatus used with a user terminal for utilizing digital data: said data copyright management apparatus comprising a central processing unit, a central processing unit bus, read-only semiconductor memory, electrically erasable programmable read-only memory, and read/write memory; wherein: said central processing unit, said read-only semiconductor memory, said electrically erasable programmable read-only memory, and said read/write memory are connected to said central processing unit bus, and a system bus of said user terminal is able to be connected to said central processing unit bus; a data copyright management system program, a copyright management program, a cryptography program based on a crypt algorithm, and user information are stored in said read-only semiconductor memory; and a first public-key, a first private-key, a second public-key a second private-key,, a first secret-key, a second secret-key, and copyright information are stored in said electrically erasable programmable read-only memory.
Claim 2
Dependent Claim
145 words
A data copyright management apparatus used with a user terminal for utilizing digital data: said data copyright management apparatus comprising a central processing unit, a central processing unit bus, read-only semiconductor memory, electrically erasable programmable read-only memory, and read/write memory; wherein: said central processing unit, said read-only semiconductor memory, said electrically erasable programmable read-only memory, and said read/write memory are connected to said central processing unit bus, and a system bus of said user terminal is able to be connected to said central processing unit bus; a data copyright management system program, a copyright management program, a cryptography program based on a crypt algorithm, and user information are stored in said read-only semiconductor memory; and a first public-key, a first private-key, a second public-key a second private-key,, a first secret-key, a second secret-key, and copyright information are stored in said electrically erasable programmable read-only memory.
Claim 3
Dependent Claim
18 words
The data copyright management apparatus according to claim 1, which is configured in the form of an IC.
Claim 4
Dependent Claim
19 words
The data copyright management apparatus according to claim 1, which is configured in the form of an IC card.
Claim 5
Dependent Claim
19 words
The data copyright management apparatus according to claim 1, which is configured in the form of a PC card.
Claim 6
Dependent Claim
19 words
The data copyright management apparatus according to claim 1, which is configured in the form of an insertion board.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-01 | 2002-08-03 | 2003-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-01 | 2006-08-03 | 2007-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-01 | 2010-08-03 | 2011-02-02 | $7700.00 | Window Closed / Lapsed |