The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2010
Filed:
Aug. 16, 2005
Takeshi Hodoshima, Kanagawa, JP;
Takeshi Hodoshima, Kanagawa, JP;
Nec Infrontia Corporation, Kanagawa, JP;
Abstract
To provide a wireless system in which a terminal that is shutdown or on in standby can be activated from a remote site in an environment where connection is attested by an authentication server, using security technology for wireless LAN, a different encryption key from other terminals is employed in the communication, and the encryption key is periodically renewed. An access point controls a beacon transmission interval control part by recognizing a terminal activation signal from a management terminal. The beacon transmission interval control part controls the transmission interval of beacon by switching between a normal operation mode and a patterned transmission interval mode. A beacon transmission interval detection circuit of a terminal monitors interval between beacons, and upon detecting patterned beacons, outputs a detection signal. A wireless module receives the detection signal from the beacon transmission interval detection circuit, and then makes an activation request to the terminal.