US Patent No: 5,539,825

Number of patents in Portfolio can not be more than 2000

Electronic cashless transaction system

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Abstract

A key control method is for use in an electronic cashless transaction system including at least a bank center, a store transaction terminal and an IC card being used as an electronic cashless transaction medium. The key control method comprises a step of having the bank center generate and code a first parameter for a transmission to the IC card; a step of having the IC card receive and decode the coded first parameter by using the first key, thereby reconstructing the first parameter issued by the bank center, perform a first operation on the first parameter and a password of a holder of the IC card, and store in a first register; a step of having the store transaction terminal send to the IC card a second parameter coded by a second key, when the holder inserts the IC card 11 into the store transaction terminal; a step of having the IC card decode the coded second parameter by using the second key, thereby reconstructing the second parameter received from the store transaction terminal, perform a second operation on the second parameter and the value stored in the first register, store a result of the second operation in the second register; and a step of decoding a value stored in the second register by using a coding session key stored in a memory of the IC card, thereby obtaining a key for an intended authentication.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FUJITSU LIMITEDKAWASAKI21511

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akiyama, Ryota Tokyo, JP 58 1469
Hasebe, Takayuki Kawasaki, JP 72 1286

Cited Art

Patent Info (Count) # Cites Year
 
AT&T INFORMATION SYSTEMS INC. (1)
5,120,939 Databaseless security system 119 1989
 
HITACHI-OMRON TERMINAL SOLUTIONS CORP. (1)
5,012,076 Transaction method wherein transaction amount is compared with account balance before ID is entered 60 1989
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,799,061 Secure component authentication system 108 1985
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (1)
5,224,162 Electronic cash system 112 1992
 
SCANDIC INTERNATIONAL PTY. LTD. (1)
5,379,344 Smart card validation device and method 177 1992
 
VISA INTERNATIONAL SERVICE ASSOCIATION (1)
5,175,416 Funds transfer system 312 1991

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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7,451,924 System for biometric security using a smartcard 5 2007
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7,530,493 Smartcard transaction method and system using iris scan recognition 3 2007
7,523,860 Smartcard transaction method and system using facial scan recognition 3 2007
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7,497,375 Smartcard transaction method and system using smellprint recognition 3 2007
7,494,058 Smartcard transaction method and system using voiceprint recognition 4 2007
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7,594,612 Smartcard transaction method and system using retinal scan recognition 4 2007
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XATRA FUND MX, LLC (22)
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7,886,157 Hand geometry recognition biometrics on a fob 0 2008
 
JPMORGAN CHASE BANK, N.A. (12)
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7,987,501 System and method for single session sign-on 1 2001
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8,145,549 System and method for offering risk-based interest rates in a credit instutment 2 2010
 
SIPCO, LLC (10)
7,756,086 Method for communicating in dual-modes 1 2004
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MULTOS LIMITED (9)
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7,584,358 Tamper resistant module certification authority 3 2007
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MONDEX INTERNATIONAL LIMITED (6)
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6,164,549 IC card with shell feature 44 1998
6,328,217 Integrated circuit card with application history list 10 1998
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6,736,325 Codelets 4 1999
6,761,319 Configuration of IC card 9 2001
 
STEPNEXUS HOLDINGS, A CAYMAN ISLAND EXEMPTED LIMITED COMPANY (6)
6,575,372 Secure multi-application IC card system having selective loading and deleting capability 16 1998
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6,488,211 System and method for flexibly loading in IC card 14 1998
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STATSIGNAL IPC, LLC (5)
7,137,550 Transmitter for accessing automated financial transaction machines 21 1997
7,397,907 Multi-function general purpose transceiver 31 2001
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8,031,650 System and method for monitoring remote devices with a dual-mode wireless communication protocol 1 2004
 
PAYBYCLICK CORPORATION--TEXAS (4)
7,177,838 Method and apparatus for conducting electronic commerce transactions using electronic tokens 24 2000
7,376,621 Method and apparatus for conducting electronic commerce transactions using electronic tokens 17 2000
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DIEBOLD SELF-SERVICE SYSTEMS DIVISION OF DIEBOLD, INCORPORATED (3)
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GOLDMONEY NETWORK LIMITED (3)
6,415,271 Electronic cash eliminating payment risk 79 1999
7,143,062 Electronic cash eliminating payment risk 6 1999
7,206,763 Method and system for commodity-based currency for payment of accounts 11 2003
 
HUNT TECHNOLOGIES, LLC (3)
7,650,425 System and method for controlling communication between a host computer and communication devices associated with remote devices in an automated monitoring system 35 2001
7,263,073 Systems and methods for enabling a mobile user to notify an automated monitoring system of an emergency situation 36 2001
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SONY CORPORATION (3)
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7,266,530 Terminal device, accounting system and data processing method 1 2002
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IPCO, LLC (2)
8,000,314 Wireless network system and method for providing same 1 2005
8,233,471 Wireless network system and method for providing same 0 2009
 
LEAD CORE FUND, L.L.C. (2)
7,343,351 Methods and apparatus for conducting electronic transactions 29 2000
8,214,299 Methods and apparatus for conducting electronic transactions 0 2010
 
NIFTY CORPORATION (2)
7,483,863 Electronic commerce information processing system and method 0 2002
7,310,611 Order processing system and method 2 2002
 
PAYBYCLICK CORPORATION (2)
7,249,060 Systems and methods for distributing on-line content 35 2002
7,676,432 Methods and apparatus for transacting electronic commerce using account hierarchy and locking of accounts 3 2003
 
SAMSUNG ELECTRONICS CO., LTD. (2)
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CHASE MANHATTAN BANK, THE (1)
6,038,552 Method and apparatus to process combined credit and debit card transactions 166 1997
 
CITIBANK, N.A. (1)
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CLEARING HOUSE PAYMENTS COMPANY L.L.C., THE (1)
7,979,348 Payment identification code and payment system using the same 1 2003
 
CUMMINS-ALLISON CORP. (1)
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DATATREASURY CORPORATION (1)
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GM NETWORK LIMITED (1)
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HITACHI, LTD. (1)
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KONINKLIJKE PTT NEDERLAND N.V. (1)
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MIDAS REX PNEUMATIC TOOLS, INC. (1)
5,949,880 Transfer of valuable information between a secure module and another module 25 1997
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
6,079,019 IC memory card 7 1997
 
NEC CORPORATION (1)
6,098,055 Banking system equipped with a radio linked portable terminal 14 1997
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (1)
6,343,284 Method and system for billing on the internet 54 1998
 
RENESAS ELECTRONICS CORPORATION (1)
5,896,325 IC card with error processing unit for sense amplifiers 14 1997
 
SANDIA CORPORATION (1)
5,832,089 Off-line compatible electronic cash method and system 76 1995
 
STATSIGNAL IPC (1)
7,424,527 System and method for transmitting pollution information over an integrated wireless network 34 2001
 
STEPNEXUS HOLDINGS (1)
7,730,310 Key transformation unit for a tamper resistant module 4 2007
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (6)
7,278,581 Electronic credit card-ecc 16 2001
7,533,828 Electronic credit card—ECC 18 2007
8,322,606 Electronic credit card—ECC 0 2009
8,447,670 Universal payment protection 0 2009
8,446,884 Dual-mode communication devices, methods and systems 0 2010
8,447,672 Universal payment protection 0 2011