IC card, terminal device, and data communication method

Details IC card, terminal device, and data communication method IC card, terminal device, and data communication method

Filed on

2008-04-15

Date issued

2008-04-15

Examiner

Lee, Michael G. (Department: 2876)

Patent Class

Registers

SubClass

Records

SubSubClass

Conductive

Other Related Categories

C711S165000, C709S241000, C709S203000, C455S556100

Type

Reexamination Certificate

Status

active

Patent number

07357329

Description

ABSTRACT:
The present invention avoids duplication and loss of digital contents by a transmitter/receiver and a malicious third party when the digital contents are transmitted on a communication platform where direct communication is performed between IC cards. A data communications method relating to the present invention includes the steps of executing a predetermined command when an IC card1areceives a predetermined trigger signal; storing a state of the IC card1abefore transmission of first digital contents; performing an encryption process on the first digital contents based on key information associated with the first digital contents; deleting the first digital contents from a holder18of the IC card1awhen a commit instruction indicating completion of a reception process on the encrypted first digital contents is received from a destination device1b: and performing a return process to the state of the IC card1awhen a transmission process on the first digital contents is interrupted.

REFERENCES:
patent: 5434395 (1995-07-01), Storck et al.
patent: 6119946 (2000-09-01), Teicher
patent: 2001/0032237 (2001-10-01), Miyake et al.
patent: 2002/0150389 (2002-10-01), Komoda
patent: 2004/0088510 (2004-05-01), Hori
patent: 2006/0142059 (2006-06-01), Ishiguro et al.
patent: 2006/0200417 (2006-09-01), Stefik et al.
patent: 1205818 (1999-01-01), None
patent: 1 223 565 (2002-07-01), None
patent: 2001-84177 (2001-03-01), None
patent: 2001-084177 (2001-03-01), None
patent: 2001-243707 (2001-09-01), None
patent: 2001-333371 (2001-11-01), None
patent: 2002-101087 (2002-04-01), None
patent: WO 97/16904 (1997-05-01), None
patent: WO 99/53451 (1999-10-01), None
patent: WO 01/16874 (2001-03-01), None
patent: WO 01/89210 (2001-11-01), None
Bennet Yee, et al., “Secure Coprocessors in Electronic Commerce Applications”, Proceedings of the 1stUSENIX Workshop on Electronic Commerce, XP-002370929, Jul. 1995, 16 pages.
Jean Camp, et al., “Anonymous Atomic Transactions”, Proceedings of the 2ndUSENUX Workshop on Electronic Commerce, XP-002370926, Nov. 20, 1996, 10 pages.
“TRONWARE vol. 73”, Personal Media Corp., vol. 13, No. 1, pp. 48-56 2002, no month.

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