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:
May. 22, 2007
Filed:
Oct. 01, 2003
Masato Hori, Kawasaki, JP;
Yoshikazu Kobayashi, Kawasaki, JP;
Masato Hori, Kawasaki, JP;
Yoshikazu Kobayashi, Kawasaki, JP;
NEC Infrontia Corporation, Kanagawa, JP;
Abstract
In a wireless LAN communication system, a communication mode is automatically switched between an infrastructure mode and an ad-hoc mode. Communication between two stations is started in the infrastructure mode. Packets transmitted in an infrastructure network are monitors to detect a packet transmitted to an access point and addressed, as a final destination, to one's own station or a destination station. If such a packet is detected, it is determined that a transmitting or source station is in a state that allows an ad-hoc communication. A channel searcher of the access point searches for available channels of an ad-hoc network. A switching controller selects one of the available channels and transmits information indicating the selected channel to the source and destination stations. In response to receiving the information indicating the selected channel, the source and destination stations starts direct communication using the selected channel of the ad-hoc network. The selection of the channel may be performed by a station. Associated data may be stored in a temporary data storage unit.