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. 16, 2010
Filed:
Dec. 01, 2004
Applicants:
Takamasa Kawaguchi, Yokohama, JP;
Nobuyoshi Ando, Kawasaki, JP;
Takayoshi Fujioka, Yokohama, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wireless device according to the present invention minimizes the need for changing a communication route in an ad hoc network including wireless devices used for base stations, fixed stations, and mobile stations that are turned on/off or moved, wherein, when wireless devices cannot directly send or receive radio waves, data can be transmitted between them by relaying data via other wireless devices that can directly send or receive radio waves (multi-hopping). In selecting a communication route, a communication route that includes wireless devices that are turned off or moved least frequently is selected.