Cryptography – Communication system using cryptography – Wireless communication
Reexamination Certificate
2009-03-04
2010-10-12
Nguyen, Minh Dieu (Department: 2438)
Cryptography
Communication system using cryptography
Wireless communication
C726S004000, C726S006000, C726S007000, C709S227000, C370S392000, C455S410000, C455S411000
Reexamination Certificate
active
07813508
ABSTRACT:
In a communication system, a first wireless communication apparatuses belonging to a communication group receives a connection request frame including a notifying security level from a second communication apparatus outside of the communication group. The first communication apparatus stores a reference security level peculiar to the communication group, which is selected from security levels depending on one of encryption methods including non-encryption and encryption strengths. In the first communication apparatus, the notifying security level is compared with the reference level, and a response frame including one of a connect rejection and a connection permission is described, is generated and transferred to the second communication apparatus. The connect rejection represents a rejection of connection to the second communication apparatus and the connection permission represents a permission of connection to the second communication apparatus.
REFERENCES:
patent: 5602916 (1997-02-01), Grube et al.
patent: 5615261 (1997-03-01), Grube et al.
patent: 5910987 (1999-06-01), Ginter et al.
patent: 6370380 (2002-04-01), Norefors et al.
patent: 6567416 (2003-05-01), Chuah
patent: 6621809 (2003-09-01), Lee et al.
patent: 6665530 (2003-12-01), Broyles et al.
patent: 6859879 (2005-02-01), Henn et al.
patent: 6928166 (2005-08-01), Yoshizawa
patent: 6970583 (2005-11-01), Black
patent: 2001/0055319 (2001-12-01), Quigley et al.
patent: 2002/0094087 (2002-07-01), Dellmo et al.
patent: 2005/0187883 (2005-08-01), Bishop et al.
patent: 09-116534 (1997-05-01), None
patent: 09-252320 (1997-09-01), None
patent: 11-220462 (1999-08-01), None
patent: 11-298532 (1999-10-01), None
patent: WO 01/63843 (2001-08-01), None
ANSI/IEEE Std 802.11, XP-002278910, pp. 1+10-69, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications”, 1999.
K-T. Salli, et al., Personal Indoor and Mobile Radio Communication, The Ninth IEEE International Symposium, XP-010314696, pp. 1540-1544, “Security Design for a New Wireless Local Area Network Tutwlan”, Sep. 8, 1998.
Adachi Tomoko
Toshimitsu Kiyoshi
Kabushiki Kaisha Toshiba
Nguyen Minh Dieu
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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