Communication terminal, portable terminal, circulating server, providing server, electronic book distributing method, and electronic book distributing program

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7403924
APP PUB NO 20040153422A1
SERIAL NO

10441162

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KEN SAKAMURATOKYO0
NOBORU KOSHIZUKATOKYO, JP0
NTT DOCOMO, INC.TOKYO2416
KOSHIZUKA, NOBORUTOKYO1

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aono, Hiroshi Yokosuka, JP 38 267
Hongo, Sadayuki Yokohama, JP 33 232
Ishii, Kazuhiko Yokohama, JP 62 532
Koshizuka, Noboru Musashino-shi, Tokyo 180-0013, JP 27 208
Mori, Kensaku Yokohama, JP 57 298
Sakamura, Ken Shinagawa-ku, Tokyo 141-0032, JP 51 540

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2002/0112,172 System and method for secure distribution of digital products 45 2002
* 2007/0073,624 CONTENT TRANSACTION SYSTEM AND METHOD, AND PROGRAM PROVIDING MEDIUM THEREFOR 15 2006
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5532920 Data processing system and method to enforce payment of royalties when copying softcopy books 446 1994
 
ADREA, LLC (1)
* 5986690 Electronic book selection and delivery system 202 1994
 
E-NET CO., LTD. (1)
* 2001/0011,234 System and method for transacting with graded prices by users based on a network 1 2001
 
HITACHI MAXELL, LTD. (1)
* 6895393 Electronic book distributing system by use of purchase certificate and devices therefor 12 1999
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
* 6453305 Method and system for enforcing licenses on an open network 36 1999
 
INTERTRUST TECHNOLOGIES CORPORATION (1)
* 5892900 Systems and methods for secure transaction management and electronic rights protection 2466 1996
 
NUVOMEDIA, INC. (1)
2001/0011,238 DIGITAL RIGHTS MANAGEMENT SYSTEM 38 1998
 
TELEPAQ TECHNOLOGY, INC. (1)
* 2001/0051,926 Method for safely encrypting transmission data 16 2001
 
NOKIA TECHNOLOGIES OY (1)
* 6886036 System and method for enhanced data access efficiency using an electronic book over data networks 69 1999
 
STUART J. RADLOFF, OPERATING TRUSTEE IN BANKRUPTCY (1)
* 6633877 Method and apparatus for delivery of selected electronic works and for controlling reproduction of the same 66 2000
 
SCHIEWE, TIMOTHY R., JOINT TENANT WITH RIGHTS OF SURVIVORSHIP (1)
* 6385614 Electronic bookshelf with multi-user features 76 1998
 
INTEL CORPORATION (1)
* 6647411 Secure cached subscription service 48 1999
 
LIGHTNING SOURCE INC. (1)
* 6704733 Distributing electronic books over a computer network 112 2001
 
XYLON LLC (1)
* 6434535 System for prepayment of electronic content using removable media and for prevention of unauthorized copying of same 186 1998
 
COLUMBIA INNOVATION ENTERPRISE (1)
* 7013296 Using electronic security value units to control access to a resource 21 2000
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2009/0171,918 PERSONALIZED SEARCHABLE LIBRARY WITH HIGHLIGHTING CAPABILITIES 7 2009
 
CRANBROOK TECHNOLOGY, LLC (1)
* 2011/0191,692 SYSTEM AND METHOD FOR E-BOOK CONTEXTUAL COMMUNICATION 22 2010
 
BLACKBERRY LIMITED (5)
9510135 Device, system and method for selecting, sharing and displaying electronic content 0 2010
8656316 Device, system and method for selecting, sharing and displaying electronic content 0 2010
8588693 Device, system and method for selecting, sharing and displaying electronic content 0 2010
* 2011/0113,369 DEVICE, SYSTEM AND METHOD FOR SELECTING, SHARING AND DISPLAYING ELECTRONIC CONTENT 0 2010
* 2011/0111,697 DEVICE, SYSTEM AND METHOD FOR SELECTING, SHARING AND DISPLAYING ELECTRONIC CONTENT 1 2010
 
AMAZON TECHNOLOGIES, INC. (3)
* 8150864 Automated monitoring and control of access to content from a source 4 2006
* 2006/0212,435 Automated monitoring and control of access to content from a source 9 2006
8380728 Personalized searchable library with highlighting capabilities 1 2009
 
GOOGLE TECHNOLOGY HOLDINGS LLC (1)
8255820 Electronic paper display device event tracking 2 2009
 
LEVEQUE INTELLECTUAL PROPERTY LAW, P.C. (1)
* 2011/0113,370 DEVICE, SYSTEM AND METHOD FOR SELECTING, SHARING AND DISPLAYING ELECTRONIC CONTENT 0 2010
* Cited By Examiner

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 22, 2020
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