US Patent No: 7,403,924
Number of patents in Portfolio can not be more than 2000
Communication terminal, portable terminal, circulating server, providing server, electronic book distributing method, and electronic book distributing program
Stats
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Jul 22, 2008
Issued date -
May 20, 2003
filing date -
10/441,162
serial no -
In Force
status
Importance
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Abstract
A portable terminal 20 according to the present invention is provided with an electronic book coupon storage 22, a book data receiver 24, an electronic book coupon deductor 25, and a book data decryptor 26. The electronic book coupon storage 22 stores an electronic book coupon used in acquisition of book data containing a plurality of page data units, along with a decryption key used in decryption of the plurality of page data units. The book data receiver 24 receives the book data from an electronic book providing server 30. The electronic book coupon deductor 25 deducts an electronic worth equivalent to a price according to page data requested to be readout, from the electronic book coupon. The book data decryptor 26 decrypts the page data in steps of one page data unit by use of the decryption key in conjunction with the deduction of the electronic worth.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,434,535 System for prepayment of electronic content using removable media and for prevention of unauthorized copying of same | 109 | 1998 | |
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| 7,013,296 Using electronic security value units to control access to a resource | 13 | 2000 | |
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| 5,986,690 Electronic book selection and delivery system | 142 | 1994 | |
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| 2001/0011,234 System and method for transacting with graded prices by users based on a network | 1 | 2001 | |
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| 6,453,305 Method and system for enforcing licenses on an open network | 23 | 1999 | |
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| 6,895,393 Electronic book distributing system by use of purchase certificate and devices therefor | 6 | 1999 | |
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| 6,647,411 Secure cached subscription service | 25 | 1999 | |
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| 5,532,920 Data processing system and method to enforce payment of royalties when copying softcopy books | 373 | 1994 | |
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| 5,892,900 Systems and methods for secure transaction management and electronic rights protection | 1511 | 1996 | |
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| 6,704,733 Distributing electronic books over a computer network | 60 | 2001 | |
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| 6,886,036 System and method for enhanced data access efficiency using an electronic book over data networks | 28 | 1999 | |
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| 2001/0011,238 DIGITAL RIGHTS MANAGEMENT SYSTEM | 30 | 1998 | |
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| 6,385,614 Electronic bookshelf with multi-user features | 62 | 1998 | |
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| 6,633,877 Method and apparatus for delivery of selected electronic works and for controlling reproduction of the same | 42 | 2000 | |
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| 2001/0051,926 Method for safely encrypting transmission data | 3 | 2001 | |
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| 2002/0112,172 System and method for secure distribution of digital products | 24 | 2002 | |
| 2007/0073,624 CONTENT TRANSACTION SYSTEM AND METHOD, AND PROGRAM PROVIDING MEDIUM THEREFOR | 9 | 2006 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 22, 2016 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 22, 2020 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |